CN111946189A - Fireproof door closing device - Google Patents
Fireproof door closing deviceDownload PDFInfo
- Publication number
- CN111946189A CN111946189ACN202010803948.6ACN202010803948ACN111946189ACN 111946189 ACN111946189 ACN 111946189ACN 202010803948 ACN202010803948 ACN 202010803948ACN 111946189 ACN111946189 ACN 111946189A
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- mounting
- arm
- sliding rod
- hole
- opening
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- 238000009434installationMethods0.000claimsabstractdescription32
- 230000007246mechanismEffects0.000claimsabstractdescription31
- 230000009471actionEffects0.000claimsdescription48
- 238000003825pressingMethods0.000claimsdescription22
- 230000000149penetrating effectEffects0.000claimsdescription3
- 238000004519manufacturing processMethods0.000abstractdescription8
- 238000012360testing methodMethods0.000abstractdescription5
- 230000000694effectsEffects0.000abstractdescription4
- 238000000034methodMethods0.000description5
- 230000008569processEffects0.000description4
- 238000010276constructionMethods0.000description2
- 230000008878couplingEffects0.000description2
- 238000010168coupling processMethods0.000description2
- 238000005859coupling reactionMethods0.000description2
- 230000007547defectEffects0.000description2
- 238000010586diagramMethods0.000description2
- 239000000758substrateSubstances0.000description2
- 238000012986modificationMethods0.000description1
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- 238000005381potential energyMethods0.000description1
- 238000007493shaping processMethods0.000description1
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Classifications
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/22—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide with braking, clamping or securing means in the guide
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Special Wing (AREA)
Abstract
Description
Technical Field
The invention belongs to the technical field of fire safety equipment, and particularly relates to a fireproof door closing device.
Background
The fireproof door closer is mainly applied to fireproof doors in various public places or commercial occasions, and is combined with a fireproof door hydraulic press to control the fireproof door to be closed in time when a building fire occurs. The fireproof door hydraulic press provides power for closing of a fireproof door, the fireproof door closer can control the fireproof door to maintain an opening state when the fireproof door is in daily passing, and the fireproof door is controlled to be automatically closed when a fire condition occurs. Because the flow of people in public places or commercial occasions is big, if the door closer is not installed on the fireproof door, the fireproof door can be automatically closed under the action of the hydraulic press after being opened manually, the fireproof door is frequently opened and closed, the generated noise can influence the surrounding environment, and meanwhile, the service life of the fireproof door can also be influenced by frequent collision between the fireproof door and a door frame.
The existing fireproof door closer in the market has the defects of large number of spare and accessory parts and complex structure, and high comprehensive cost of accessories, assembly, testing and the like. Especially, the stress point of the existing fireproof door closer in use is on the sliding rail, so that the sliding rail bears larger tensile force, the fireproof door closer cannot be used on a fireproof door with larger weight, the fireproof door closer is easy to deform or even damage, and the service life of the fireproof door closer is shortened. In addition, most of existing fireproof door closers have high requirements on the thickness of a fireproof door frame, and are single in installation mode and poor in universality.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the door closing device for the fireproof door, aiming at the defects in the prior art, the door closing device for the fireproof door is simple in mechanical structure, reasonable in design, convenient to realize, few in integral component parts, simple to assemble, low in field failure rate, high in production efficiency, strong in universality, capable of adapting to the fireproof door with a wider door weight range, good in use effect and convenient to popularize and use, and the comprehensive cost of production, assembly, testing and the like is reduced.
In order to solve the technical problems, the invention adopts the technical scheme that: a fireproof door closing device comprises a telescopic mechanism and a telescopic limiting mechanism, wherein the telescopic mechanism comprises a first sliding rod and a second sliding rod which can slide relatively, a clamping piece which can be clamped with the telescopic limiting mechanism is arranged on the first sliding rod, one end, far away from the clamping piece, of the first sliding rod is a first mounting end of the door closing device, a mounting groove for mounting the telescopic limiting mechanism is formed in one end of the second sliding rod, the other end of the second sliding rod is a second mounting end of the door closing device, and a connecting piece is arranged on the second mounting end; the telescopic limiting mechanism comprises a mounting frame arranged in the mounting groove, a first supporting block and a second supporting block are arranged between the mounting frame and the second sliding rod, the first sliding rod penetrates through the first supporting block and the second supporting block, an electromagnetic assembly, a reset release piece and an elastic component are arranged in the mounting frame, the electromagnetic assembly is fixedly connected onto the mounting frame, the reset release piece is connected onto the mounting frame through a rotating shaft, a first action shaft and a second action shaft are arranged on the elastic component, and the elastic component is connected onto the mounting frame through the first action shaft and the second action shaft.
In the fireproof door closing device, the clamping piece comprises a groove body through which the first sliding rod passes and a clamping tongue for clamping with the telescopic limiting mechanism, a hollow part is arranged above the groove body, a through hole vertically penetrating through the groove body and the hollow part is formed in the clamping piece, a positioning block is arranged in the through hole, and a spiral spring positioned in the hollow part is sleeved on the positioning block; the first sliding rod is provided with a plurality of positioning holes for embedding the positioning blocks at intervals, and one end, close to the clamping piece, of the first sliding rod is provided with a limiting screw.
The fireproof door closing device comprises a mounting groove and a second sliding rod, wherein the mounting groove and the second sliding rod are integrally formed, the mounting groove is U-shaped, a first mounting hole and a second mounting hole are symmetrically formed in two side faces of the mounting groove respectively, a first mounting bolt is arranged in the first mounting hole, and a second mounting bolt is arranged in the second mounting hole.
The fireproof door closing device comprises a connecting piece, a first connecting piece and a second connecting piece, wherein the connecting piece comprises a first side plate and a second side plate which are integrally formed, and a bottom plate which is used for connecting the first side plate and the second side plate; the novel multifunctional connector comprises a base plate, a first side plate and a second side plate, and is characterized in that screw holes are symmetrically formed in the first side plate and the second side plate, rotary bolts are arranged in the screw holes, a first gasket is arranged between the first side plate and a second sliding rod, a second gasket is arranged between the second side plate and the second sliding rod, a first connecting piece mounting hole is formed in the first side plate, a second connecting piece mounting hole is formed in the base plate, two outer arc chamfers are arranged on the upper edge of the first side plate, and two inner arc chamfers are arranged on the upper edge of the second side plate.
The fireproof door closing device comprises a mounting frame, a first connecting plate, a second connecting plate and a third connecting plate, wherein the mounting frame comprises a first mounting plate and a second mounting plate which are vertically arranged, and the third mounting plate is connected with the first mounting plate and the second mounting plate; first mounting panel, second mounting panel and third mounting panel integrated into one piece, on first mounting panel and the second mounting panel respectively the symmetry shaping have first trompil, second trompil and third trompil to and third mounting hole and fourth mounting hole, the waist shape hole that first trompil is vertical setting, the waist shape hole that the second trompil set up for the slope, the third trompil is the circular port, first action coupling is in first trompil, second action coupling is in the second trompil, rotation axis connection is in the third trompil, be provided with the fourth trompil that is located the electromagnetic component top on the third mounting panel and be located the fifth trompil of elastic component top, fourth trompil and fifth trompil are the rectangular hole, the last border symmetry that first mounting panel and second mounting panel are located fourth opening department is provided with L type hem.
In the fireproof door closing device, the first support block comprises a first base body, a first sliding chute and a first limit table formed at the joint of the first base body and the outer side of the first sliding chute; the first base body is provided with a first through hole, the first sliding groove is used for the first sliding rod to slide, first extending parts are symmetrically arranged on the inner side of the first sliding groove, a first protruding block used for being embedded on the second sliding rod is arranged at the bottom of the first sliding groove, a channel for the clamping piece to penetrate through is arranged on the lower portion of the first base body, and the channel is communicated with the first sliding groove.
In the fireproof door closing device, the second supporting block comprises a second base body, a second chute and a second limiting table formed at the joint of the second base body and the outer side of the second chute; the second base body is provided with a second through hole, the second sliding groove is used for the first sliding rod to slide, second extending parts are symmetrically arranged on the inner side of the second sliding groove, and a second protruding block used for being embedded on the second sliding rod is arranged at the bottom of the second sliding groove.
The fireproof door closing device comprises an electromagnet main body and an electromagnet shaft core arranged at the center shaft of the electromagnet main body, wherein one end of the electromagnet shaft core is located in the electromagnet main body, the other end of the electromagnet shaft core is provided with a pin hole which is vertical to the electromagnet shaft core in the axial direction, a pin rod is arranged in the pin hole, and a reset spring which is sleeved on the electromagnet shaft core is arranged between the pin rod and the electromagnet main body.
The fireproof door closing device comprises a reset release piece, a first limiting part, a second limiting part and a pressing part, wherein the reset release piece comprises a rotating part, the limiting part and the pressing part are integrally formed, the rotating part comprises a first rotating arm and a second rotating arm which rotate around a rotating shaft, the limiting part comprises a connecting arm which connects the first rotating arm and the second rotating arm, the first limiting arm which horizontally extends towards the direction of an electromagnetic component is connected onto the connecting arm, the tail end of the first limiting arm is bent upwards to form a second limiting arm which is perpendicular to the first limiting arm, the functional part comprises a first cambered surface which is arranged at one end of the first rotating arm and a second cambered surface which is arranged at one end of the second rotating arm, the upper part, close to the first cambered surface, of the first rotating arm is connected with a vertically arranged first vertical arm, the tail end of the first vertical arm is bent towards the direction of the second rotating arm to form a first pressing arm which is perpendicular to the first vertical arm, and the upper part, close to the second cambered surface, of the second rotating arm, the tail end of the second vertical arm is bent towards the first vertical arm to form a second pressing arm perpendicular to the second vertical arm, the first pressing arm and the second pressing arm form a pressing part, a first inclined plane is arranged on the lower portion, close to the first cambered surface, of the first rotary arm, and a second inclined plane is arranged on the lower portion, close to the second cambered surface, of the second rotary arm.
The fireproof door closing device comprises an elastic component, a middle elastic part, a first connecting part and a second connecting part, wherein a first action shaft is arranged in the first connecting part, a second action shaft is arranged in the second connecting part, and a sleeve used for being clamped with a clamping piece is sleeved on the first action shaft.
Compared with the prior art, the invention has the following advantages:
1. the invention has simple mechanical structure, reasonable design and convenient realization.
2. According to the invention, the electromagnet assembly and the reset release piece are mutually matched, so that the clamping piece is released by the elastic component, and the closing control of the fireproof door is realized.
3. According to the invention, the first sliding rod and the second sliding rod which slide relatively are designed, the first sliding rod is provided with a plurality of positioning holes, and the mounting positions of the clamping pieces are adjusted through the positioning holes at different positions, so that the adjustment of the maximum opening and closing angle of the fireproof door is realized.
4. According to the invention, the stress point of the fireproof door closing device is transferred to a wall body or a door frame when the fireproof door closing device is used through the horizontal movement of the first sliding rod and the second sliding rod and the cooperation of the first sliding rod and the second sliding rod and the telescopic limiting mechanism, so that the first sliding rod and the second sliding rod are small in bearing force and not easy to deform and damage, and meanwhile, the fireproof door closing device can be suitable for fireproof doors with larger door weight ranges.
5. According to the invention, through designing the connecting piece, the requirement on the field installation space is reduced, the requirement on the thickness of the fireproof door frame is low, the installation mode is simple, and the adaptability adjustment can be carried out according to the field installation space.
6. The invention has the advantages of few integral components, simple assembly, low production, assembly, test and other comprehensive costs, low field failure rate, high production efficiency, strong universality, good use effect and convenient popularization and use, and can adapt to fire doors with larger door weight ranges.
In conclusion, the fireproof door has the advantages of simple mechanical structure, reasonable design, convenience in implementation, few integral components, simplicity in assembly, low field failure rate, high production efficiency, strong universality, suitability for fireproof doors with larger door weight ranges, good use effect and convenience in popularization and use, and the comprehensive cost of production, assembly, testing and the like is reduced.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the telescopic spacing mechanism of the present invention;
FIG. 3 is a schematic view of the engaging member of the present invention;
FIG. 4 is a schematic view of the construction of the mounting channel and the second slide bar of the present invention;
FIG. 5 is a schematic view of the construction of the connector of the present invention;
FIG. 6 is a schematic structural view of a mount of the present invention;
FIG. 7 is a schematic structural diagram of a first support block according to the present invention;
FIG. 8 is a schematic view of a second support block of the present invention;
FIG. 9 is a schematic diagram of a solenoid assembly of the present invention;
FIG. 10 is a schematic structural view of a reset release of the present invention;
FIG. 11 is a schematic view of the structure of the elastic member of the present invention;
figure 12 is a schematic view of a front mount of the fire rated door of the present invention;
figure 13 is a schematic view of a back mount of the fire rated door of the present invention;
FIG. 14 is a schematic view of the reset release operating condition of the present invention;
fig. 15 is a schematic view of the reset release of the present invention in a released state.
Description of reference numerals:
1-a first slide bar; 2-a second slide bar; 3-a fastener;
3-1-tank body; 3-2-tongue clamping; 3-hollow part;
3-4-positioning block; 3-5-coil spring; 4-a first mounting end;
5, mounting a groove; 6-second mounting end; 7, connecting pieces;
7-1-a first side panel; 7-2 — a second side plate; 7-3-a bottom plate;
7-4-rotating the bolt; 7-5 — a first gasket; 7-6-second gasket;
7-first connector mounting holes; 7-8-second connector mounting holes;
7-9-chamfering of the outer circular arc; 7-10-chamfering the inner arc; 8, mounting a frame;
8-1 — a first mounting plate; 8-2 — a second mounting plate; 8-3-a third mounting plate;
8-4 — first opening; 8-5-second opening; 8-6-third opening;
8-7-a third mounting hole; 8-a fourth mounting hole; 8-9-fourth opening;
8-10-fifth opening; 8-11-L-shaped folded edges; 9-a first support block;
9-1 — a first substrate; 9-2 — a first runner; 9-3-a first limit table;
9-4 — a first via; 9-5 — a first extension; 9-6 — first bump;
9-7-channels; 10-a second support block; 10-1 — a second substrate;
10-2 — a second chute; 10-3-a second limit table; 10-4 — a second via;
10-5 — a second extension; 10-6 — second bump; 11-an electromagnetic assembly;
11-1-an electromagnet body; 11-2-electromagnet shaft core; 11-3-pin bar;
11-4-a return spring; 12-a reset release; 12-1 — a first radial arm;
12-2 — second radial arm; 12-3-linker arm; 12-4-a first stop arm;
12-5-a second spacing arm; 12-6-first cambered surface; 12-7-second cambered surface;
12-8 — a first vertical arm; 12-9 — a first pressing arm; 12-10 — a second vertical arm;
12-11 — a second pressing arm; 12-12 — a first bevel; 12-13 — second bevel;
13-an elastic member; 13-1-middle elastic part; 13-2 — a first connection;
13-3 — a second connecting portion; 14-a rotating shaft; 15 — a first action axis;
16-a second action axis; 17-positioning holes; 18-a limit screw;
19-a first mounting hole; 20-a second mounting hole; 21 — a first mounting bolt;
22-a second mounting bolt; 23-sleeve.
Detailed Description
As shown in fig. 1, the fire door closing device of the present invention includes a telescopic mechanism and a telescopic limiting mechanism, the telescopic mechanism includes a first slide rod 1 and a second slide rod 2 capable of sliding relatively, the first slide rod 1 is provided with a fastener 3 capable of being fastened with the telescopic limiting mechanism, one end of the first slide rod 1 far away from the fastener 3 is a first mounting end 4 of the door closing device, one end of the second slide rod 2 is provided with a mounting groove 5 for mounting the telescopic limiting mechanism, the other end of the second slide rod 2 is a second mounting end 6 of the door closing device, and the second mounting end 6 is provided with a connecting piece 7; the telescopic limiting mechanism comprises an installation frame 8 arranged in the installation groove 5, and is combined with a drawing 2, wherein a first supporting block 9 and a second supporting block 10 are arranged between the installation frame 8 and a second sliding rod 2, the first sliding rod 1 penetrates through the first supporting block 9 and the second supporting block 10, an electromagnetic component 11, a reset release piece 12 and an elastic component 13 are arranged in the installation frame 8, the electromagnetic component 11 is fixedly connected onto the installation frame 8, the reset release piece 12 is connected onto the installation frame 8 through a rotating shaft 14, a first action shaft 15 and a second action shaft 16 are arranged on the elastic component 13, and the elastic component 13 is connected onto the installation frame 8 through the first action shaft 15 and the second action shaft 16.
In specific implementation, as shown in fig. 12 and 13, the first installation end 4 is installed on the fire door, and thesecond installation end 6 is installed on the door frame of the fire door through the connecting piece 7.
Along with the opening and closing of the fireproof door, the first sliding rod 1 and the second sliding rod 2 slide relatively, specifically, the first sliding rod 1 and the second sliding rod 2 slide horizontally relatively along the length direction, the lower surface of the first sliding rod 1 and the upper surface of the second sliding rod 2 are arranged relatively, when the fireproof door is opened, the first sliding rod 1 is driven to move, the clamping piece 3 on the first sliding rod 1 moves towards the telescopic limiting mechanism on the second sliding rod 2, and when the clamping piece 3 is contacted with the telescopic limiting mechanism, the clamping piece 3 is clamped with each other, so that the fireproof door is kept in an opened state.
In this embodiment, as shown in fig. 3, the engaging member 3 includes a groove body 3-1 through which the first slide rod 1 passes and a tongue 3-2 for engaging with the telescopic limiting mechanism, a hollow portion 3-3 is provided above the groove body 3-1, a through hole vertically penetrating through the groove body 3-1 and the hollow portion 3-3 is provided on the engaging member 3, a positioning block 3-4 is provided in the through hole, and a coil spring 3-5 located in the hollow portion 3-3 is sleeved on the positioning block 3-4; a plurality of positioning holes 17 for embedding the positioning blocks 3-4 are arranged on the first slide rod 1 at intervals, and a limitingscrew 18 is arranged at one end of the first slide rod 1 close to the clamping piece 3.
When the installation method is concretely implemented, the lower part of the positioning block 3-4 corresponds to thepositioning hole 17 in shape, the upper part of the positioning block 3-4 extends out of the clamping piece 3, when the clamping piece 3 is installed on the first sliding rod 1, the positioning block 3-4 is lifted upwards, the lower part of the positioning block 3-4 is separated from thepositioning hole 17, the spiral spring 3-5 is compressed, the clamping piece 3 moves on the first sliding rod 1 through the groove body 3-1, and when the positioning block reaches thepositioning hole 17 at the installation position, the positioning block 3-4 enables the lower part of the positioning block 3-4 to be embedded into thepositioning hole 17 under the elastic force of the compressed spiral spring 3-5, and quick installation is achieved. The installation position of the clamping piece 3 is adjusted through the positioning holes 17 at different positions, so that the maximum opening and closing angle of the fireproof door is adjusted.
Specifically, thestopper screw 18 is used to block the engaging piece 3 and prevent the engaging piece 3 from falling off from the first slide bar 1 when not fitted into thepositioning hole 17.
In this embodiment, as shown in fig. 4, the mountinggroove 5 and the second slide rod 2 are integrally formed, the mountinggroove 5 is U-shaped, and a first mountinghole 19 and a second mountinghole 20 are symmetrically formed on two side surfaces of the mountinggroove 5, respectively, a first mountingbolt 21 is disposed in the first mountinghole 19, and asecond mounting bolt 22 is disposed in the second mountinghole 20.
In specific implementation, the first mountinghole 19 and the second mountinghole 20 are both threaded holes.
In this embodiment, as shown in fig. 5, the connecting member 7 includes a first side plate 7-1 and a second side plate 7-2 which are integrally formed, and a bottom plate 7-3 connecting the first side plate 7-1 and the second side plate 7-2; screw holes are symmetrically formed in the first side plate 7-1 and the second side plate 7-2, rotary bolts 7-4 are arranged in the screw holes, a first gasket 7-5 is arranged between the first side plate 7-1 and the second sliding rod 2, a second gasket 7-6 is arranged between the second side plate 7-2 and the second sliding rod 2, a first connecting piece mounting hole 7-7 is formed in the first side plate 7-1, a second connecting piece mounting hole 7-8 is formed in the bottom plate 7-3, two outer arc chamfers 7-9 are arranged on the upper edge of the first side plate 7-1, and two inner arc chamfers 7-10 are arranged on the upper edge of the second side plate 7-2.
In specific implementation, the second mountingend 6 of the second slide rod 2 is provided with an opening through which the rotating bolt 7-4 passes, the second slide rod 2 can rotate around the rotating bolt 7-4, and the swing of the second slide rod 2 around the rotating bolt 7-4 is reduced and the friction noise during rotation is reduced through the first gasket 7-5 and the second gasket 7-6.
In specific implementation, according to field installation conditions, the first side plate 7-1 of the connecting piece 7 can be fixed on the fireproof door frame through the first connecting piece installation hole 7-7, and the bottom plate 7-3 of the connecting piece 7 can also be fixed on the fireproof door frame through the second connecting piece installation hole 7-8, so that the installation mode is flexible. When the first connecting piece mounting hole 7-7 is used for mounting, two inner arc chamfers 7-10 are arranged on the upper edge of the second side plate 7-2 for facilitating the operation of screwing a mounting screw, and meanwhile, the inner arc chamfers 7-10 can also be arranged to avoid the spatial interference between the tail end of the first sliding rod 1 and the connecting piece 7 when the first sliding rod 1 rotates.
In the present embodiment, as shown in fig. 6, the mounting frame 8 includes a first mounting plate 8-1 and a second mounting plate 8-2 which are vertically arranged, and a third mounting plate 8-3 which connects the first mounting plate 8-1 and the second mounting plate 8-2; the electromagnetic component comprises a first mounting plate 8-1, a second mounting plate 8-2 and a third mounting plate 8-3 which are integrally formed, wherein the first mounting plate 8-1 and the second mounting plate 8-2 are symmetrically formed with a first opening 8-4, a second opening 8-5, a third opening 8-6, a third mounting hole 8-7 and a fourth mounting hole 8-8, the first opening 8-4 is a vertically-arranged waist-shaped hole, the second opening 8-5 is an obliquely-arranged waist-shaped hole, the third opening 8-6 is a circular hole, a first action shaft 15 is connected in the first opening 8-4, a second action shaft 16 is connected in the second opening 8-5, a rotation shaft 14 is connected in the third opening 8-6, the third mounting plate 8-3 is provided with a fourth opening 8-9 above the electromagnetic component 11 and an elastic component 13 The fifth opening 8-10 is arranged above the first mounting plate, the fourth opening 8-9 and the fifth opening 8-10 are rectangular holes, and L-shaped folding edges 8-11 are symmetrically arranged on the upper edges of the first mounting plate 8-1 and the second mounting plate 8-2 at the fourth opening 8-9.
In specific implementation, thefirst action shaft 15 can move in the first opening 8-4, and is a release position of thefirst action shaft 15 when thefirst action shaft 15 moves to a position close to the third mounting plate 8-3 in the first opening 8-4, and is a clamping position of thefirst action shaft 15 when thefirst action shaft 15 moves to a position far away from the third mounting plate 8-3 in the first opening 8-4; thesecond actuating shaft 16 is movable within the second opening 8-5 to a release position of thesecond actuating shaft 16 when thesecond actuating shaft 16 is moved into the second opening 8-5 to a position close to the third mounting plate 8-3 and to an operating position of thesecond actuating shaft 16 when thesecond actuating shaft 16 is moved into the second opening 8-5 to a position away from the third mounting plate 8-3.
In this embodiment, as shown in fig. 7, the first supporting block 9 includes a first base 9-1, a first sliding groove 9-2, and a first limiting table 9-3 formed at a connection position of the first base 9-1 and an outer side of the first sliding groove 9-2; the first base body 9-1 is provided with a first through hole 9-4, the first sliding chute 9-2 is used for the first sliding rod 1 to slide, the inner side of the first sliding chute 9-2 is symmetrically provided with a first extending part 9-5, the bottom of the first sliding chute 9-2 is provided with a first bump 9-6 which is used for being embedded on the second sliding rod 9, the lower part of the first base body 9-1 is provided with a channel 9-7 for the clamping piece 3 to pass through, and the channel 9-7 is communicated with the first sliding chute 9-2.
In specific implementation, the first extension part 9-5 is used for increasing the contact area of the first slide rod 1 sliding in the first sliding groove 9-2 and reducing the left-right swing of the first slide rod 1 in the sliding process of the first sliding groove 9-2; the first supporting block 9 is fixed on the second slide rod 2 through the first bump 9-6, so that the first supporting block 9 is prevented from being driven to rotate in the sliding process of the first slide rod 1 in the first sliding groove 9-2.
In this embodiment, as shown in fig. 8, the second supportingblock 10 includes a second base body 10-1 and a second sliding groove 10-2, and a second limiting table 10-3 is formed at a connection position of the second base body 10-1 and an outer side of the second sliding groove 10-2; the second base body 10-1 is provided with a second through hole 10-4, the second sliding groove 10-2 is used for the first sliding rod 1 to slide, a second extending part 10-5 is symmetrically arranged on the inner side of the second sliding groove 10-2, and the bottom of the second sliding groove 10-2 is provided with a second projection 10-6 which is used for being embedded on the second sliding rod 2.
In specific implementation, the second extension part 10-5 is used for increasing the contact area of the first slide rod 1 sliding in the second sliding groove 10-2 and reducing the left-right swing of the first slide rod 1 in the sliding process of the second sliding groove 10-2; the first supportingblock 10 is fixed on the second slide rod 2 through the second bump 10-6, so that the second supportingblock 10 is prevented from being driven to rotate in the sliding process of the first slide rod 1 in the second sliding groove 10-2.
In specific implementation, the first supporting block 9 and the second supporting block 10 are mounted on the second slide bar 2 at intervals, specifically, when the first supporting block 9 is mounted on the second slide bar 2, the first lug 9-6 is embedded on the second slide bar 2, and the first through hole 9-4 is aligned with the first mounting hole 19 on the mounting groove 5; when the second support block 10 is mounted on the second slide bar 2, the second projection 10-6 is engaged with the second slide bar 2, and the second through hole 10-4 is aligned with the second mounting hole 20 of the mounting groove 5; when the mounting bracket 8 with the electromagnetic assembly 11, the reset releasing member 12 and the elastic member 13 is placed on the first supporting block 9 and the second supporting block 10, the end surface of the first mounting plate 8-1 and the end surface of the second mounting plate 8-2 are positioned on the first limiting table 9-3 and the second limiting table 10-3, and simultaneously, the third mounting hole 8-7 on the mounting bracket 8 is aligned with the first through hole 9-4, and the fourth mounting hole 8-8 on the mounting bracket 8 is aligned with the second through hole 10-4; the first mounting bolt 21 penetrates through the first mounting hole 19, the third mounting hole 8-7 and the first through hole 9-4, and the second mounting bolt 22 penetrates through the second mounting hole 20, the fourth mounting hole 8-8 and the second through hole 10-4, so that the telescopic limiting mechanism is fixed in the mounting groove 5.
In this embodiment, as shown in fig. 9, theelectromagnetic assembly 11 includes an electromagnet main body 11-1 and an electromagnet core 11-2 disposed at a central axis of the electromagnet main body 11-1, one end of the electromagnet core 11-2 is located in the electromagnet main body 11-1, the other end of the electromagnet core 11-2 is provided with a pin hole axially perpendicular to the electromagnet core 11-2, a pin 11-3 is disposed in the pin hole, and a return spring 11-4 sleeved on the electromagnet core 11-2 is disposed between the pin 11-3 and the electromagnet main body 11-1.
During specific implementation, the electromagnet main body 11-1 is fixedly connected to the third mounting plate 8-3 of the mounting frame 8, specifically, one side of the electromagnet main body 11-1 is fixed to the third mounting plate 8-3 through screws, and the other side of the electromagnet main body 11-1 is clamped to the L-shaped folding edge 8-11 of the mounting frame 8.
In this embodiment, as shown in fig. 10, the reset releasing member 12 includes a rotating portion, a limiting portion, a functional portion and a pressing portion, the rotating portion includes a first radial arm 12-1 and a second radial arm 12-2 rotating around a rotating shaft 14, the limiting portion includes a connecting arm 12-3 connecting the first radial arm 12-1 and the second radial arm 12-2, the connecting arm 12-3 is connected with a first limiting arm 12-4 horizontally extending toward the electromagnetic component 11, a distal end of the first limiting arm 12-4 is bent upward to form a second limiting arm 12-5 perpendicular to the first limiting arm 12-4, the functional portion includes a first arc surface 12-6 disposed at one end of the first radial arm 12-1 and a second arc surface 12-7 disposed at one end of the second radial arm 12-2, the upper part of the first rotating arm 12-1, which is close to the first cambered surface 12-6, is connected with a first vertical arm 12-8 which is vertically arranged, the tail end of the first vertical arm 12-8 is bent towards the direction of a second rotating arm 12-2 to form a first pressing arm 12-9 which is vertical to the first vertical arm 12-8, the upper part of the second rotating arm 12-2, which is close to the second cambered surface 12-7, is connected with a second vertical arm 12-10 which is vertically arranged, the tail end of the second vertical arm 12-10 is bent towards the direction of the first vertical arm 12-8 to form a second pressing arm 12-11 which is vertical to the second vertical arm 12-10, the first pressing arm 12-9 and the second pressing arm 12-11 form a pressing part, the lower part of the first rotating arm 12-1, which is close to the first cambered surface 12-6, is provided with a first inclined surface 12-12, and a second inclined surface 12-13 is arranged at the lower part of the second radial arm 12-2 close to the second cambered surface 12-7.
In specific implementation, when thereset releasing piece 12 is in a working state, as shown in fig. 14, the first limiting arm 12-4 is located at the upper part of the pin rod 11-3, and both the first arc surface 12-6 and the second arc surface 12-7 collide with thesecond action shaft 16, so that thesecond action shaft 16 is located at a working position;
when thereset release member 12 is in a release state, as shown in fig. 15, the pin 11-3 loses the limit of the first limit arm 12-4, the first radial arm 12-1 and the second radial arm 12-2 rotate around therotation shaft 14 to drive the second limit arm 12-5 to rotate, so that the pin 11-3 contacts with the second limit arm 12-5 to realize the rotation limit of the rotation part, meanwhile, the first cambered surface 12-6 and the second cambered surface 12-7 lose the interference with thesecond action shaft 16, and thesecond action shaft 16 contacts with the first inclined surface 12-12 and the second inclined surface 12-13.
When thereset releasing piece 12 performs reset operation, thesecond action shaft 16 is extruded by the first inclined surface 12-12 and the second inclined surface 12-13 through the pressing part and moves towards the working position in the second opening 8-5 until the first cambered surface 12-6 and the second cambered surface 12-7 are restored to abut against thesecond action shaft 16, meanwhile, the rotating part rotates to drive the second limiting arm 12-5 to rotate, so that the pin rod 11-3 is separated from the second limiting arm 12-5, the pin rod 11-3 is ejected under the action of the reset spring 11-4, and the limit of the first limiting arm 12-4 is restored.
In this embodiment, as shown in fig. 11, theelastic member 13 includes a middle elastic portion 13-1, a first connection portion 13-2, and a second connection portion 13-3, thefirst actuating shaft 15 is disposed in the first connection portion 13-2, thesecond actuating shaft 16 is disposed in the second connection portion 13-3, and asleeve 23 for engaging with the engaging member 3 is sleeved on thefirst actuating shaft 15.
In specific implementation, when theelastic component 13 is in a working state, thereset releasing piece 12 abuts against thesecond action shaft 16, thesecond action shaft 16 in the second connecting part 13-3 is located at a working position, theelastic component 13 is extruded, the middle elastic part 13-1 stores elastic potential energy, and thefirst action shaft 15 in the first connecting part 13-2 is located at a clamping position; when theelastic member 13 is in the release state, both thefirst operating shaft 15 and thesecond operating shaft 16 are located at the release position.
When a fire condition occurs and the fireproof door needs to be closed, the electromagnet main body 11-1 is electrified, the electromagnet shaft core 11-2 drives the pin rod 11-3 to contract, the first limiting arm 12-4 of the resettingrelease piece 12 is released, the rotating part of the resettingrelease piece 12 rotates around the rotatingshaft 14 under the elastic action of theelastic component 13, the first arc surface 12-6 and the second arc surface 12-7 lose the interference with thesecond action shaft 16, thesecond action shaft 16 moves to the release position along the second opening 8-5 under the elastic action of theelastic component 13, meanwhile, thefirst action shaft 15 is driven to move to the release position along the first opening 8-4, the release of the clamping piece 3 by thesleeve 23 on thefirst action shaft 15 is realized, and the automatic closing of the fireproof door is further realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and all simple modifications, changes and equivalent structural changes made to the above embodiment according to the technical spirit of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a prevent fire door closing device which characterized in that: the door closing device comprises a telescopic mechanism and a telescopic limiting mechanism, wherein the telescopic mechanism comprises a first sliding rod (1) and a second sliding rod (2) which can slide relatively, a clamping piece (3) which can be clamped with the telescopic limiting mechanism is arranged on the first sliding rod (1), one end, far away from the clamping piece (3), of the first sliding rod (1) is a first mounting end (4) of the door closing device, one end of the second sliding rod (2) is provided with a mounting groove (5) for mounting the telescopic limiting mechanism, the other end of the second sliding rod (2) is a second mounting end (6) of the door closing device, and a connecting piece (7) is arranged on the second mounting end (6);
the telescopic limiting mechanism comprises an installation frame (8) arranged in an installation groove (5), a first supporting block (9) and a second supporting block (10) are arranged between the installation frame (8) and a second sliding rod (2), the first sliding rod (1) penetrates through the first supporting block (9) and the second supporting block (10), an electromagnetic assembly (11), a reset release piece (12) and an elastic component (13) are arranged in the installation frame (8), the electromagnetic assembly (11) is fixedly connected onto the installation frame (8), the reset release piece (12) is connected onto the installation frame (8) through a rotating shaft (14), a first action shaft (15) and a second action shaft (16) are arranged on the elastic component (13), and the elastic component (13) is connected onto the installation frame (8) through the first action shaft (15) and the second action shaft (16).
2. A fire door closer apparatus according to claim 1, wherein: the clamping piece (3) comprises a groove body (3-1) for a first sliding rod (1) to penetrate through and a clamping tongue (3-2) for clamping with the telescopic limiting mechanism, a hollow part (3-3) is arranged above the groove body (3-1), a through hole vertically penetrating through the groove body (3-1) and the hollow part (3-3) is formed in the clamping piece (3), a positioning block (3-4) is arranged in the through hole, and a spiral spring (3-5) located in the hollow part (3-3) is sleeved on the positioning block (3-4); a plurality of positioning holes (17) used for embedding the positioning blocks (3-4) are arranged on the first sliding rod (1) at intervals, and a limiting screw (18) is arranged at one end, close to the clamping piece (3), of the first sliding rod (1).
3. A fire door closer apparatus according to claim 1, wherein: the mounting groove (5) and the second sliding rod (2) are integrally formed, the mounting groove (5) is U-shaped, a first mounting hole (19) and a second mounting hole (20) are symmetrically formed in two side faces of the mounting groove (5) respectively, a first mounting bolt (21) is arranged in the first mounting hole (19), and a second mounting bolt (22) is arranged in the second mounting hole (20).
4. A fire door closer apparatus according to claim 1, wherein: the connecting piece (7) comprises a first side plate (7-1) and a second side plate (7-2) which are integrally formed, and a bottom plate (7-3) which is used for connecting the first side plate (7-1) and the second side plate (7-2); screw holes are symmetrically formed on the first side plate (7-1) and the second side plate (7-2), rotary bolts (7-4) are arranged in the screw holes, a first gasket (7-5) is arranged between the first side plate (7-1) and the second slide rod (2), a second gasket (7-6) is arranged between the second side plate (7-2) and the second slide rod (2), a first connecting piece mounting hole (7-7) is arranged on the first side plate (7-1), a second connecting piece mounting hole (7-8) is arranged on the bottom plate (7-3), two outer arc chamfers (7-9) are arranged on the upper edge of the first side plate (7-1), the upper edge of the second side plate (7-2) is provided with two inner arc chamfers (7-10).
5. A fire door closer apparatus according to claim 3, wherein: the mounting rack (8) comprises a first mounting plate (8-1), a second mounting plate (8-2) and a third mounting plate (8-3), wherein the first mounting plate (8-1) and the second mounting plate (8-2) are vertically arranged, and the third mounting plate (8-3) is connected with the first mounting plate (8-1) and the second mounting plate (8-2); the first mounting plate (8-1), the second mounting plate (8-2) and the third mounting plate (8-3) are integrally formed, a first opening (8-4), a second opening (8-5) and a third opening (8-6), a third mounting hole (8-7) and a fourth mounting hole (8-8) are symmetrically formed on the first mounting plate (8-1) and the second mounting plate (8-2), the first opening (8-4) is a vertically arranged waist-shaped hole, the second opening (8-5) is an obliquely arranged waist-shaped hole, the third opening (8-6) is a round hole, the first action shaft (15) is connected in the first opening (8-4), the second action shaft (16) is connected in the second opening (8-5), the rotating shaft (14) is connected in a third opening (8-6), a fourth opening (8-9) located above the electromagnetic assembly (11) and a fifth opening (8-10) located above the elastic component (13) are arranged on the third mounting plate (8-3), the fourth opening (8-9) and the fifth opening (8-10) are rectangular holes, and L-shaped folding edges (8-11) are symmetrically arranged on the upper edges of the first mounting plate (8-1) and the second mounting plate (8-2) located at the fourth opening (8-9).
6. A fire door closer apparatus according to claim 1, wherein: the first supporting block (9) comprises a first base body (9-1), a first sliding groove (9-2) and a first limiting table (9-3) formed at the connecting position of the first base body (9-1) and the outer side of the first sliding groove (9-2); the first base body (9-1) is provided with a first through hole (9-4), the first sliding chute (9-2) is used for the first sliding rod (1) to slide, first extending parts (9-5) are symmetrically arranged on the inner side of the first sliding chute (9-2), the bottom of the first sliding chute (9-2) is provided with a first bump (9-6) which is embedded on the second sliding rod (9), the lower part of the first base body (9-1) is provided with a channel (9-7) through which the clamping piece (3) penetrates, and the channel (9-7) is communicated with the first sliding chute (9-2).
7. A fire door closer apparatus according to claim 6, wherein: the second supporting block (10) comprises a second base body (10-1), a second sliding groove (10-2) and a second limiting table (10-3) formed at the connecting position of the second base body (10-1) and the outer side of the second sliding groove (10-2); the second base body (10-1) is provided with a second through hole (10-4), the second sliding chute (10-2) is used for the first sliding rod (1) to slide, second extending parts (10-5) are symmetrically arranged on the inner side of the second sliding chute (10-2), and the bottom of the second sliding chute (10-2) is provided with a second bump (10-6) which is used for being embedded on the second sliding rod (2).
8. A fire door closer apparatus according to claim 1, wherein: the electromagnetic assembly (11) comprises an electromagnet main body (11-1) and an electromagnet shaft core (11-2) arranged at the middle shaft of the electromagnet main body (11-1), one end of the electromagnet shaft core (11-2) is located in the electromagnet main body (11-1), the other end of the electromagnet shaft core (11-2) is provided with a pin hole which is perpendicular to the electromagnet shaft core (11-2) in the axial direction, a pin rod (11-3) is arranged in the pin hole, and a reset spring (11-4) sleeved on the electromagnet shaft core (11-2) is arranged between the pin rod (11-3) and the electromagnet main body (11-1).
9. A fire door closer apparatus according to claim 1, wherein: the reset release part (12) comprises a rotating part, a limiting part, a functional part and a pressing part which are integrally formed, the rotating part comprises a first rotating arm (12-1) and a second rotating arm (12-2) which rotate around a rotating shaft (14), the limiting part comprises a connecting arm (12-3) which is connected with the first rotating arm (12-1) and the second rotating arm (12-2), the connecting arm (12-3) is connected with a first limiting arm (12-4) which horizontally extends towards the direction of the electromagnetic component (11), the tail end of the first limiting arm (12-4) is bent upwards to form a second limiting arm (12-5) which is perpendicular to the first limiting arm (12-4), the functional part comprises a first cambered surface (12-6) arranged at one end of the first rotating arm (12-1) and a second cambered surface (12-7) arranged at one end of the second rotating arm (12-2), the upper part of the first rotating arm (12-1), which is close to the first cambered surface (12-6), is connected with a first vertical arm (12-8) which is vertically arranged, the tail end of the first vertical arm (12-8) is bent towards the direction of the second rotating arm (12-2) to form a first pressing arm (12-9) which is vertical to the first vertical arm (12-8), the upper part of the second rotating arm (12-2), which is close to the second cambered surface (12-7), is connected with a second vertical arm (12-10) which is vertically arranged, the tail end of the second vertical arm (12-10) is bent towards the direction of the first vertical arm (12-8) to form a second pressing arm (12-11) which is vertical to the second vertical arm (12-10), and the first pressing arm (12-9) and the second pressing arm (12-11) form a pressing part, the lower part of the first radial arm (12-1) close to the first cambered surface (12-6) is provided with a first inclined surface (12-12), and the lower part of the second radial arm (12-2) close to the second cambered surface (12-7) is provided with a second inclined surface (12-13).
10. A fire door closer apparatus according to claim 1, wherein: the elastic component (13) comprises a middle elastic part (13-1), a first connecting part (13-2) and a second connecting part (13-3), the first action shaft (15) is arranged in the first connecting part (13-2), the second action shaft (16) is arranged in the second connecting part (13-3), and a sleeve (23) used for being clamped with the clamping piece (3) is sleeved on the first action shaft (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010803948.6ACN111946189A (en) | 2020-08-11 | 2020-08-11 | Fireproof door closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010803948.6ACN111946189A (en) | 2020-08-11 | 2020-08-11 | Fireproof door closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946189Atrue CN111946189A (en) | 2020-11-17 |
Family
ID=73332149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010803948.6AWithdrawnCN111946189A (en) | 2020-08-11 | 2020-08-11 | Fireproof door closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111946189A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354933A (en)* | 2022-08-21 | 2022-11-18 | 中冶建工集团有限公司 | Intelligent fire-fighting window |
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| CN115354933B (en)* | 2022-08-21 | 2024-04-23 | 中冶建工集团有限公司 | Intelligent fire window |
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