CN112780110B - Multi-point limiting linkage device - Google Patents

Abstract

The invention discloses a multipoint limiting linkage device which comprises a panel, and an inclined tongue mechanism, a square core assembly and a linkage assembly which are arranged on the panel, wherein a first bracket and a second bracket are respectively fixedly arranged at two ends of the panel, a square core limiting piece is fixedly arranged on the square core assembly, and the square core limiting piece is movably connected with the first bracket and the second bracket; the square core limiting piece is fixedly provided with a first lug and a second lug, the first bracket is provided with a first limiting boss matched with the first lug, the second bracket is provided with a second limiting boss matched with the second lug, and after the square core component moves in place, the lugs are abutted against the corresponding limiting bosses so as to limit the square core component; avoid overload effort to lead to square core subassembly and linkage subassembly to guarantee the overall quality of lock body, increase the security of lock body, simple structure, easy and simple to handle, and have stronger practicality.

Description

Multi-point limiting linkage device

Technical Field

The invention relates to the technical field of door lock linkage devices, in particular to a multipoint limiting linkage device.

Background

The door lock is an indispensable device in daily life, and is arranged on a door plate arranged at a building entrance; in general, the opening and closing between the door panel and the door frame are realized by the cooperation between the square core and the inclined tongue mechanism.

The existing square core component is provided with a bolt poking piece, the bolt poking piece drives the oblique bolt to retract, and because the stroke of the oblique bolt retracting is limited, when the oblique bolt retracts to the limit position, if the square core is continuously rotated, the bolt poking piece can be deformed at the moment, or when an overload acting force acts on the bolt poking piece, the bolt poking piece can be deformed, and then the door lock is damaged, namely violent unlocking is caused from the outside, so that the safety of the door lock is lower.

Disclosure of Invention

The invention aims to solve the technical problem of providing a multipoint limiting linkage device which can limit a bolt poking piece and has high safety performance.

In order to solve the problems, the invention provides a multipoint limiting linkage device, which comprises a panel, and a latch mechanism, a square tongue mechanism, a square core component and a linkage component which are arranged on the panel, wherein a first bracket and a second bracket are respectively fixedly arranged at two ends of the panel, the latch mechanism is arranged on the first bracket in a sliding way, the square tongue mechanism is arranged on the second bracket in a sliding way, the square core component is movably connected with the latch mechanism, the linkage component is movably connected with the latch mechanism and the square tongue mechanism, and the square core component is in sliding connection with the linkage component; the square core assembly is fixedly provided with a square core limiting piece, and the square core limiting piece is movably connected with the first bracket and the second bracket; the square core limiting piece is fixedly provided with a first lug and a second lug, the first support is provided with a first limiting boss matched with the first lug, the second support is provided with a second limiting boss matched with the second lug, and after the square core component moves in place, the lugs are abutted against the corresponding limiting bosses so as to limit the square core component.

Further, the square core assembly comprises a square core, a first lock tongue stirring piece and a linkage stirring piece, wherein the square core is arranged on the first lock tongue stirring piece and the linkage stirring piece in a penetrating manner and is fixedly connected with the first stirring piece and the linkage stirring piece, and a stirring block is arranged on the first lock tongue stirring piece; the panel is also provided with a second spring bolt shifting piece, the second spring bolt shifting piece is movably connected with the inclined tongue mechanism, the second spring bolt shifting piece is provided with a sliding groove, the shifting block is arranged in the sliding groove in a sliding manner, and the shifting block drives the second spring bolt shifting piece to move in place and then to be in contact with the inclined tongue mechanism.

Further, the linkage assembly comprises a first linkage piece and a second linkage piece, the first linkage piece is sleeved on the outer side of the linkage stirring piece and is in sliding connection with the linkage stirring piece, and a linkage block is fixedly arranged on the first stirring piece; the two ends of the second linkage piece are respectively arranged at the two ends of the panel in a sliding way, the second linkage piece is movably connected with the inclined tongue mechanism and the square tongue mechanism, an arc-shaped groove is formed in the second linkage piece, and the linkage block is arranged in the arc-shaped groove in a sliding way.

Further, the second linkage member is further provided with a limiting groove, the limiting groove and the arc-shaped groove are respectively arranged on two sides of the second linkage member, and the square tongue mechanism is movably connected with the limiting groove.

Further, the oblique tongue mechanism comprises an oblique lock tongue, a sliding block and an oblique tongue spring, the oblique lock tongue is fixedly connected with the sliding block, the sliding block is arranged on the first bracket in a sliding manner, a positioning column is fixedly arranged at one end, far away from the oblique lock tongue, of the sliding block, the oblique tongue spring is sleeved on the outer side of the positioning column, one end of the oblique tongue spring is fixedly connected with the sliding block, and the other end of the oblique tongue spring is abutted to the first bracket; one side of the sliding block is fixedly provided with an inclined tongue shifting block, and the square core component is movably connected with the inclined tongue shifting block.

Further, the square tongue mechanism comprises a square tongue and a square tongue poking block, wherein the square tongue poking block is fixedly arranged on the square tongue, and the square tongue poking block is movably connected with the linkage assembly.

The invention has the beneficial effects that:

(1) The square core limiting piece is provided with a first lug and a second lug respectively, and a first limiting boss and a second limiting boss matched with the first lug and the second lug are arranged at corresponding positions of the first bracket and the second bracket, so that when the square core limiting piece rotates in place along with the clockwise or anticlockwise rotation of the square core component, the square core component is limited, the situation that the second bolt stirring piece is deformed to damage a door lock due to the fact that an overrun overload acting force acts on the second bolt stirring piece is avoided, and the safety of the door lock is improved;

(2) The panel is provided with a first linkage piece and a second linkage piece, the linkage toggle piece is driven to rotate through the square core, the rotation of the linkage toggle piece is further transmitted to the second linkage piece through the first linkage piece, the circular motion of the first linkage piece is converted into the linear motion of the second linkage piece through the linkage block on the first linkage piece and the arc-shaped groove on the second linkage piece, and then the linear motion is abutted with the inclined bolt mechanism and the square bolt mechanism at the corresponding ends to limit the inclined bolt and the square bolt to retract, so that the anti-theft and anti-prying of the door lock are realized, the anti-theft performance of the door lock is further improved, and the door lock has multiple safety functions.

Drawings

Fig. 1 is a schematic structural diagram of a multipoint limiting linkage device according to the present invention.

Fig. 2 is a schematic diagram of another embodiment of the present invention.

Fig. 3 is an enlarged structural view at a in fig. 2.

Fig. 4 is a schematic structural view of a square core assembly.

Fig. 5 is a schematic structural view of the square core limiting member in fig. 4.

Fig. 6 is a schematic structural view of the second linkage member in fig. 1.

The reference numerals are as follows:

panel 1,first bracket 11,first spacing boss 110,second bracket 12,second spacing boss 120, squarecore spacing element 2,first bump 21,second bump 22,oblique tongue 31,slider 32,oblique tongue spring 33,positioning column 34, obliquetongue poking block 35,square tongue 41, square tongue poking block 42,square core 51, firsttongue poking element 52,poking block 520,linkage poking element 53, secondtongue poking element 54,chute 540,first linkage element 61,second linkage element 62,linkage block 610,arc groove 620, and spacing groove 621.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1-6, the multipoint limiting linkage device comprises a panel 1, and a latch mechanism, a square tongue mechanism, a square core component and a linkage component which are arranged on the panel 1, wherein afirst bracket 11 and asecond bracket 12 are respectively fixedly arranged at two ends of the panel 1, the latch mechanism is arranged on thefirst bracket 11 in a sliding manner, the square tongue mechanism is arranged on thesecond bracket 12 in a sliding manner, and the square core component is movably connected with the latch mechanism and is used for driving the latch mechanism to move so as to realize opening and closing of a door lock; the linkage assembly is movably connected with the inclined tongue mechanism and the square tongue mechanism, the square core assembly is slidably connected with the linkage assembly, and the square core assembly drives the linkage assembly to act, so that the linkage assembly is abutted with the inclined tongue mechanism and the square tongue mechanism, the inclined tongue mechanism and the square tongue mechanism cannot retract, further the anti-theft and anti-prying of the door lock are realized, and the anti-theft performance of the door lock is improved. The squarecore limiting piece 2 is fixedly arranged on the square core component, the square corelimiting piece 2 is movably connected with thefirst support 11 and thesecond support 12, thefirst protruding block 21 and thesecond protruding block 22 are fixedly arranged on the squarecore limiting piece 2, thefirst support 11 is provided with a firstlimiting boss 110 matched with thefirst protruding block 21, thesecond support 12 is provided with a secondlimiting boss 120 matched with thesecond protruding block 22, when the square core component drives the squarecore limiting piece 2 to rotate in place, thefirst protruding block 21 on the square corelimiting piece 2 is abutted to the firstlimiting boss 110 on thefirst support 11, or when the square core component drives the squarecore limiting piece 2 to rotate in the opposite direction, thesecond protruding block 22 on the square core limiting piece is abutted to the secondlimiting boss 120 on thesecond support 12, so that the square core component is limited, and the damage to the square core component caused when an overload force acts on the square core component is avoided, and the integral quality of the lock body is influenced.

The oblique tongue mechanism comprises anoblique lock tongue 31, asliding block 32 and an obliquelock tongue spring 33, wherein theoblique lock tongue 31 is fixedly connected with thesliding block 32, and thesliding block 32 is arranged on thefirst bracket 11 in a sliding manner so as to drive theoblique lock tongue 31 to slide on thefirst bracket 11. The end of thesliding block 32 far away from theinclined lock tongue 31 is fixedly provided with apositioning column 34, and the inclinedlock tongue spring 33 is sleeved on the outer side of thepositioning column 34 and used for limiting the inclinedlock tongue spring 33, so that the position of the inclinedlock tongue spring 33 is prevented from shifting, and the accuracy and fluency of the movement of the inclined lock tongue mechanism are prevented from being influenced. One end of theinclined spring 33 is fixedly connected with thesliding block 32, and the other end is abutted against thefirst bracket 11 for resetting theinclined spring bolt 31. An obliquetongue shifting block 35 is also fixedly arranged on one side of thesliding block 32 and is used for driving the slidingblock 32 to move. The square core component is movably connected with the inclinedbolt shifting block 35, and is used for driving the inclinedbolt shifting block 35 to move so as to drive the slidingblock 32 and theinclined bolt 31 to synchronously move. The square tongue mechanism comprises asquare tongue 41 and a square tongue poking block 42, the square tongue poking block 42 is fixedly arranged on thesquare tongue 41, the square tongue poking block 42 is movably connected with the linkage assembly, and the linkage assembly is used for limiting the movement of thesquare tongue 41.

The square core assembly comprises asquare core 51, a first locktongue stirring piece 52 and a linkage stirringpiece 53, wherein thesquare core 51 is arranged on the first locktongue stirring piece 52 and thelinkage stirring piece 53 in a penetrating mode and fixedly connected with the first stirring piece and thelinkage stirring piece 53, and thesquare core 51 is used for driving the first locktongue stirring piece 52 and thelinkage stirring piece 53 to rotate synchronously. The firstbolt poking piece 52 is provided with apoking block 520; the panel 1 is further provided with a secondbolt shifting piece 54, the secondbolt shifting piece 54 is movably connected with the inclinedbolt shifting block 35, the secondbolt shifting piece 54 is provided with asliding groove 540, the shiftingblock 520 is slidably arranged in thesliding groove 540, when the firstbolt shifting piece 52 rotates, the shiftingblock 520 pushes the groove wall of thesliding groove 540, and then the secondbolt shifting piece 54 is driven to synchronously rotate, the secondbolt shifting piece 54 extrudes the inclinedbolt shifting block 35, and the inclinedbolt shifting block 35 drives the slidingblock 32 to slide on thefirst bracket 11, so that theinclined bolt 31 is driven to retract, and the door lock is opened.

The linkage assembly comprises afirst linkage piece 61 and asecond linkage piece 62, thefirst linkage piece 61 is sleeved on the outer side of thelinkage poking piece 53 and is in sliding connection with thelinkage poking piece 53, and alinkage block 610 is fixedly arranged on the first poking piece; the two ends of thesecond linkage member 62 are respectively slidably disposed at the two ends of the panel 1, thesecond linkage member 62 is movably connected with theoblique lock tongue 31 and the square tongue poking block 42, an arc-shaped groove 620 is disposed on thesecond linkage member 62, thelinkage block 610 is slidably disposed in the arc-shaped groove 620, and the rotation of thelinkage poking member 53 drives thefirst linkage member 61 to synchronously rotate, so that thelinkage block 610 on thefirst linkage member 61 pushes the groove wall of the arc-shaped groove 620, the circular motion of thefirst linkage member 61 is converted into the linear motion of thesecond linkage member 62, thesecond linkage member 62 slides on the panel 1, and the side wall of thesecond linkage member 62 is abutted with theoblique lock tongue 31 to limit the retraction of theoblique lock tongue 31; thesecond linkage member 62 is further provided with a limiting groove 621, the limiting groove 621 and the arc-shaped groove 620 are respectively arranged on two sides of thesecond linkage member 62, the limiting groove 621 is movably connected with the square tongue poking block 42, namely, when thesecond linkage member 62 moves in place, the square tongue poking block 42 is clamped in the limiting groove 621 to limit thesquare tongue 41 to retract, so that the anti-theft and anti-prying of the door lock are further realized, and the anti-theft performance of the door lock is improved.

The working principle of the invention is as follows:

when the invention is used, thesquare core 51 is rotated by external force, thesquare core 51 drives thestirring block 520 on the firstbolt stirring piece 52 to extrude the secondbolt stirring piece 54, so that thestirring block 520 pushes thesliding groove 540 on the secondbolt stirring piece 54 to move, and then drives the secondbolt stirring piece 54 to extrude the inclinedbolt stirring block 35, so that the inclined bolt stirring piece is driven to retract, the function of opening the door is realized, then the external force acting on thesquare core 51 is released, and theinclined bolt 31 automatically stretches out under the reset action of theinclined bolt spring 33. When theoblique lock tongue 31 and thesquare tongue 41 are locked, thesquare core 51 rotates in the opposite direction, thesquare core 51 drives thelinkage stirring piece 53 to rotate, thelinkage stirring piece 53 drives thefirst linkage piece 61 to synchronously rotate, thelinkage block 610 on thefirst linkage piece 61 pushes the groove wall of the arc-shaped groove 620 on thesecond linkage piece 62, the circular motion of thefirst linkage piece 61 is converted into the linear motion of thesecond linkage piece 62, thesecond linkage piece 62 slides on the panel 1, and thesecond linkage piece 62 resists theoblique lock tongue 31 and the square tongue stirring piece 42, so that the retraction of theoblique lock tongue 31 is limited, and the anti-theft performance of the door lock is improved.

Thesquare core 51 drives the squarecore limiting part 2 to synchronously rotate in the rotating process, when the lock is unlocked, the squarecore limiting part 2 rotates in place, thefirst lug 21 on the squarecore limiting part 2 is propped against the firstlimiting boss 110 on thefirst bracket 11, thesquare core 51 is limited to continue rotating, the secondbolt poking part 54 is prevented from being deformed due to overload acting force, or when theoblique bolt 31 and thesquare bolt 41 are locked, thesquare core 51 drives the squarecore limiting part 2 to rotate reversely, thesecond lug 22 on the squarecore limiting part 2 is propped against the secondlimiting boss 120 on thesecond bracket 12, thesquare core 51 is limited to continue rotating, thesecond linkage part 62 is prevented from being deformed due to overload acting force, the whole quality of the lock body is ensured, the safety of the lock body is improved, the structure is simple, the operation is simple and convenient, and the practicability is high.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The foregoing is only the embodiments of the present invention, and therefore, the patent scope of the invention is not limited thereto, and all equivalent structures made by the description of the invention and the accompanying drawings are directly or indirectly applied to other related technical fields, which are all within the scope of the invention.

Claims (3)

1. A multi-point limiting linkage device is characterized in that: the square core type inclined bolt comprises a panel, and an inclined bolt mechanism, a square core component and a linkage component which are arranged on the panel, wherein a first bracket and a second bracket are respectively fixedly arranged at two ends of the panel, the inclined bolt mechanism is arranged on the first bracket in a sliding manner, the square bolt mechanism is arranged on the second bracket in a sliding manner, the square core component is movably connected with the inclined bolt mechanism, the linkage component is movably connected with the inclined bolt mechanism and the square bolt mechanism, and the square core component is slidably connected with the linkage component; the square core assembly is fixedly provided with a square core limiting piece, and the square core limiting piece is movably connected with the first bracket and the second bracket; the square core limiting piece is fixedly provided with a first lug and a second lug, the first bracket is provided with a first limiting boss matched with the first lug, the second bracket is provided with a second limiting boss matched with the second lug, and after the square core component moves in place, the lugs are abutted against the corresponding limiting bosses so as to limit the square core component; the square core assembly comprises a square core, a first lock tongue stirring piece and a linkage stirring piece, wherein the square core is arranged on the first lock tongue stirring piece and the linkage stirring piece in a penetrating manner and is fixedly connected with the first stirring piece and the linkage stirring piece, and a stirring block is arranged on the first lock tongue stirring piece; the panel is also provided with a second spring bolt shifting piece, the second spring bolt shifting piece is movably connected with the inclined tongue mechanism, the second spring bolt shifting piece is provided with a sliding groove, the shifting block is arranged in the sliding groove in a sliding way, and the shifting block drives the second spring bolt shifting piece to move in place and then to be in contact with the inclined tongue mechanism; the linkage assembly comprises a first linkage piece and a second linkage piece, the first linkage piece is sleeved on the outer side of the linkage stirring piece and is in sliding connection with the linkage stirring piece, and a linkage block is fixedly arranged on the first stirring piece; the two ends of the second linkage piece are respectively arranged at the two ends of the panel in a sliding way, the second linkage piece is movably connected with the inclined tongue mechanism and the square tongue mechanism, an arc-shaped groove is arranged on the second linkage piece, and the linkage block is arranged in the arc-shaped groove in a sliding way; and the second linkage piece is also provided with a limiting groove, the limiting groove and the arc-shaped groove are respectively arranged on two sides of the second linkage piece, and the square tongue mechanism is movably connected with the limiting groove.

2. A multi-point limited linkage as claimed in claim 1, wherein: the inclined tongue mechanism comprises an inclined spring tongue, a sliding block and an inclined spring tongue, wherein the inclined spring tongue is fixedly connected with the sliding block, the sliding block is arranged on the first bracket in a sliding manner, a positioning column is fixedly arranged at one end, far away from the inclined spring tongue, of the sliding block, the inclined spring tongue is sleeved on the outer side of the positioning column, one end of the inclined spring tongue is fixedly connected with the sliding block, and the other end of the inclined spring tongue is abutted to the first bracket; one side of the sliding block is fixedly provided with an inclined tongue shifting block, and the square core component is movably connected with the inclined tongue shifting block.

3. A multi-point limited linkage as claimed in claim 1, wherein: the square tongue mechanism comprises a square tongue and a square tongue shifting block, wherein the square tongue shifting block is fixedly arranged on the square tongue, and the square tongue shifting block is movably connected with the linkage assembly.

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