CN112377664A - But solenoid valve of automatically cleaning filter screen - Google Patents
But solenoid valve of automatically cleaning filter screenDownload PDFInfo
- Publication number
- CN112377664A CN112377664ACN202011209641.XACN202011209641ACN112377664ACN 112377664 ACN112377664 ACN 112377664ACN 202011209641 ACN202011209641 ACN 202011209641ACN 112377664 ACN112377664 ACN 112377664A
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- filter screen
- cavity
- pressure relief
- water outlet
- water inlet
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- 238000004140cleaningMethods0.000titleclaimsabstractdescription30
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsabstractdescription134
- 230000001105regulatory effectEffects0.000claimsabstractdescription45
- XEEYBQQBJWHFJM-UHFFFAOYSA-NIronChemical group[Fe]XEEYBQQBJWHFJM-UHFFFAOYSA-N0.000claimsabstractdescription24
- 239000012528membraneSubstances0.000claimsdescription8
- 230000006835compressionEffects0.000claims2
- 238000007906compressionMethods0.000claims2
- 239000012535impuritySubstances0.000abstractdescription12
- 239000012530fluidSubstances0.000description12
- 230000000694effectsEffects0.000description4
- 239000013049sedimentSubstances0.000description3
- 230000009286beneficial effectEffects0.000description2
- 239000007789gasSubstances0.000description1
- 239000007788liquidSubstances0.000description1
- 230000004048modificationEffects0.000description1
- 238000012986modificationMethods0.000description1
- 238000007789sealingMethods0.000description1
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Classifications
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/018—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements ring shaped
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/22—Directing the mixture to be filtered on to the filters in a manner to clean the filters
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Magnetically Actuated Valves (AREA)
- Details Of Valves (AREA)
Abstract
Description
Technical Field
The invention relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve capable of automatically cleaning a filter screen.
Background
Solenoid valves are the basic elements of automation used to control the flow of liquids or gases. The electromagnetic valve controls the pressure relief passage to be switched on or switched off through the reciprocating action of a movable iron core in the valve, so that the diaphragm is opened or closed to realize the opening and closing of the electromagnetic valve. Whether the movement of the movable iron core is smooth and whether the pressure relief passage is smooth directly influence the opening and closing performance of the electromagnetic valve.
At present, the main pain points of unstable performance of the electromagnetic valve are as follows:
1. foreign matters (impurities) can easily enter the movable cavity of the movable iron core and the pressure relief passage of the electromagnetic valve, so that the movable iron core is blocked or the passage is blocked;
2. for reducing the situation that foreign matters (impurities) enter into the movable cavity of the movable iron core or the pressure relief channel of the electromagnetic valve, a plurality of electromagnetic valves are provided with filter screens at the front ends of the water inlet cavities, however, the filter screens can be blocked after long-time running, regular manual cleaning is needed, and the operation is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a solenoid valve capable of self-cleaning a filter screen, which can prevent foreign matters (impurities) from entering a pressure relief passage and a movable iron core cavity, and the filter screen can be self-cleaned without manual cleaning.
In order to solve the technical problem, the invention provides an electromagnetic valve capable of self-cleaning a filter screen, which comprises a valve seat, a valve cover, a diaphragm assembly and a valve head,
a water inlet cavity, a water outlet cavity and a first pressure relief passage communicated with the water outlet cavity are arranged in the valve seat, the water outlet cavity is provided with a water inlet, and the water inlet cavity is provided with a water outlet coaxial with the water inlet;
a pressure regulating cavity and a second pressure relief passage are arranged in the valve cover, one end of the second pressure relief passage is communicated with the first pressure relief passage, and the other end of the second pressure relief passage is communicated with the pressure regulating cavity;
the diaphragm assembly is arranged in the pressure regulating cavity in a floating mode and used for plugging the water inlet and the water outlet, and a pressure relief hole for communicating the pressure regulating cavity with the water inlet cavity is formed in the diaphragm assembly;
a sliding cavity communicated with the second pressure relief passage is arranged in the valve head, a movable iron core is arranged in the sliding cavity, and the movable iron core can slide in the sliding cavity in a reciprocating manner to close or open the second pressure relief passage;
the filter screen is movably arranged in the water outlet, the filter screen is arranged outside the pressure relief hole, and the filter screen can float between the water outlet and the pressure regulating cavity.
As the improvement of the scheme, the filter screen comprises a filter screen body and a filter screen support, a positioning groove matched with the filter screen body is formed in the filter screen support, and the filter screen body can axially reciprocate relative to the filter screen support along a water outlet cavity.
As an improvement of the scheme, the diaphragm assembly comprises a diaphragm body and a diaphragm support, the diaphragm body is sleeved on one side, opposite to the water inlet and the water outlet, of the diaphragm support, a supporting platform is arranged on the circumferential direction of the inner wall of the valve seat, the valve cover presses the periphery of the diaphragm body on the supporting platform, and the part, close to the periphery, of the diaphragm body arches towards one side of the pressure regulating cavity.
As an improvement of the scheme, a guide cylinder arranged opposite to the water inlet is arranged on the diaphragm support, and a first clamping groove matched with the thickness of the diaphragm body is formed in the outer wall of the guide cylinder;
the diaphragm support is provided with a guide post opposite to the water outlet, and the outer wall of the guide post is provided with a second clamping groove matched with the thickness of the diaphragm body.
As an improvement of the scheme, the pressure relief hole is formed in the guide column.
As an improvement of the scheme, the filter screen body is annular, and the cross section of the filter screen body is U-shaped.
As the improvement of the scheme, the filter screen body is provided with an opening towards one side of the guide post, and the opening is matched with the guide post.
As an improvement of the scheme, one side of the diaphragm support, which is opposite to the pressure regulating cavity, is provided with a limiting support column, and the limiting support column is used for abutting against the cavity bottom of the pressure regulating cavity.
As the improvement of the scheme, the filter screen comprises a filter screen body and a filter screen support, wherein the filter screen body and the filter screen support are integrally formed.
As an improvement of the above scheme, a pressure spring is arranged at the bottom of the sliding cavity, an electromagnetic coil is arranged in the circumferential direction of the sliding cavity, the pressure spring enables the movable iron core to close the second pressure relief passage, and the electromagnetic coil enables the movable iron core to open the second pressure relief passage when the electromagnetic coil is powered on.
The implementation of the invention has the following beneficial effects:
the invention discloses a solenoid valve capable of self-cleaning a filter screen, which is characterized in that a water inlet cavity, a water outlet cavity and a first pressure relief passage are arranged in a valve seat, a water outlet of the water inlet cavity and a water inlet of the water outlet cavity are coaxially arranged, a pressure regulating cavity and a second pressure relief passage are arranged in a valve cover, a diaphragm assembly for plugging the water outlet of the water inlet cavity and the water inlet of the water outlet cavity is arranged in the pressure regulating cavity in a floating way, and a pressure relief hole is arranged on the diaphragm assembly, so that the water inlet cavity, the pressure relief hole, the pressure regulating cavity, the second pressure relief passage, the first pressure relief passage and the water outlet cavity form a complete pressure relief passage, when a movable iron core slides and opens the second pressure relief passage, fluid in the pressure regulating cavity enters the water outlet cavity through the second pressure relief passage and the first pressure relief passage, the pressure in the pressure regulating cavity is instantly released, and the pressure generated by the water inlet cavity pushes the, the water inlet and the water outlet which are originally blocked by the membrane component are communicated, and the fluid in the water inlet cavity directly enters the water outlet cavity; in the embodiment, the filter screen covered outside the pressure relief hole is arranged at the water outlet, and the filter screen floats along with the diaphragm assembly under the action of water pressure, so that fluid entering the pressure regulating cavity through the water inlet cavity can be filtered, impurities are prevented from entering the pressure relief hole, the second pressure relief channel, the first pressure relief channel and the sliding cavity, the situation that a movable iron core is blocked or the pressure relief channel is blocked is further avoided, the electromagnetic valve is smoothly opened and closed, and the reliability is high; in addition, because the filter screen is floated under the action of water pressure, impurities filtered by the filter screen and sediments attached to the surface of the filter screen can be flushed away along with fluid through the water outlet cavity, so that the self-cleaning effect of the filter screen is achieved, the filter screen cannot be blocked, manual cleaning is not needed, and the filter screen is very convenient to use.
Drawings
FIG. 1 is a schematic perspective exploded view of an electromagnetic valve for a self-cleaning filter according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the cross-sectional A-A structure of FIG. 2;
FIG. 4 is a longitudinal cross-sectional view of the self-cleanable strainer of FIG. 1 after assembly of the solenoid valve;
FIG. 5 is another longitudinal cross-sectional view of the self-cleanable strainer of FIG. 1 after assembly of the solenoid valve;
FIG. 6 is a schematic perspective exploded view of an electromagnetic valve for self-cleaning a strainer according to another embodiment of the present invention;
FIG. 7 is a longitudinal cross-sectional view of the self-cleaning strainer of FIG. 6 after assembly of the solenoid valve;
FIG. 8 is another longitudinal cross-sectional view of the self-cleanable strainer of FIG. 6 after assembly of the solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides an embodiment of an electromagnetic valve capable of self-cleaning a filter screen, including avalve seat 1, avalve cover 2, adiaphragm assembly 3, and avalve head 4, with reference to fig. 2 and fig. 3, awater inlet cavity 11, awater outlet cavity 12, and a firstpressure relief passage 13 communicated with thewater outlet cavity 12 are disposed in thevalve seat 1, thewater outlet cavity 12 is provided with awater inlet 121, and thewater inlet cavity 11 is provided with awater outlet 111 disposed coaxially with thewater inlet 121; apressure regulating cavity 21 and a secondpressure relief passage 22 are arranged in thevalve cover 2, one end of the secondpressure relief passage 22 is communicated with the firstpressure relief passage 13, and the other end of the secondpressure relief passage 22 is communicated with thepressure regulating cavity 21; thediaphragm assembly 3 is arranged in thepressure regulating cavity 21 in a floating manner and used for plugging thewater inlet 121 and thewater outlet 111, and apressure relief hole 311 for communicating thepressure regulating cavity 21 with thewater inlet cavity 11 is formed in thediaphragm assembly 3; a slidingcavity 41 communicated with the secondpressure relief passage 22 is arranged in thevalve head 4, amovable iron core 42 is arranged in thesliding cavity 41, and themovable iron core 42 can slide in thesliding cavity 41 in a reciprocating manner to close or open the secondpressure relief passage 22; wherein,delivery port 111 internalization is equipped withfilter screen 5,filter screen 5 covers and establishes outsidepressure release hole 311, justfilter screen 5 can float betweendelivery port 111 andpressure regulating cavity 21.
In the embodiment, thewater inlet cavity 11, thewater outlet cavity 12 and the firstpressure relief passage 13 are arranged in thevalve seat 1, thewater outlet 111 of thewater inlet cavity 11 and thewater inlet 121 of thewater outlet cavity 12 are coaxially arranged, thepressure regulating cavity 21 and the secondpressure relief passage 22 are arranged in thevalve cover 2, thediaphragm assembly 3 for sealing thewater outlet 111 of thewater inlet cavity 11 and thewater inlet 121 of thewater outlet cavity 12 is arranged in thepressure regulating cavity 21 in a floating manner, and thepressure relief hole 311 is arranged on thediaphragm assembly 3, so that thewater inlet cavity 11, thepressure relief hole 311, thepressure regulating cavity 21, the secondpressure relief passage 22, the firstpressure relief passage 13 and thewater outlet cavity 12 form a complete pressure relief passage, when themovable iron core 42 slides and opens the secondpressure relief passage 22, fluid in thepressure regulating cavity 21 enters thewater outlet cavity 12 through the secondpressure relief passage 22 and the firstpressure relief passage 13, the pressure in thepressure regulating cavity 21 is released instantaneously, and the pressure generated by thewater inlet cavity 11 pushes thediaphragm assembly 3 to float towards the side away from the, thewater inlet 121 originally plugged by themembrane component 3 is communicated with thewater outlet 111, and the fluid in thewater inlet cavity 11 directly enters thewater outlet cavity 12; in this embodiment, thefilter screen 5 covered outside thepressure relief hole 311 is disposed at thewater outlet 111, and thefilter screen 5 floats along with themembrane assembly 3 under the action of water pressure, so that fluid entering thepressure regulating cavity 21 through thewater inlet cavity 11 can be filtered, impurities are prevented from entering thepressure relief hole 311, the secondpressure relief passage 22, the firstpressure relief passage 13 and thesliding cavity 41, the situation that themovable iron core 42 is stuck or the pressure relief passage is blocked is further avoided, the solenoid valve is smoothly opened and closed, and the reliability is high; in addition, because thefilter screen 5 is floated under the action of water pressure, the filtered impurities and the sediments attached to the surface of the filter screen can be washed away along with the fluid through thewater outlet cavity 12, so that the self-cleaning effect of thefilter screen 5 is achieved, the situation of blockage can not occur, manual cleaning is not needed, and the application is very convenient.
Specifically, apressure spring 43 is arranged at the bottom of thesliding cavity 41 in this embodiment, anelectromagnetic coil 44 is arranged in the circumferential direction of thesliding cavity 41, and thepressure spring 43 causes theplunger 42 to close the secondpressure relief passage 22, so that thediaphragm assembly 3 blocks thewater inlet 121 and thewater outlet 111; when theelectromagnetic coil 44 is energized, theplunger 42 opens the secondpressure relief path 22, thediaphragm assembly 3 is pushed by the water pressure in thewater inlet chamber 11 to float toward the side away from thewater inlet 121 and thewater outlet 111, so that thewater inlet 121 and thewater outlet 111 are opened, and the fluid in thewater inlet chamber 11 enters thewater outlet chamber 12.
With reference to fig. 4 and 5, thefilter screen 5 of the present embodiment specifically includes afilter screen body 51 and afilter screen support 52, apositioning groove 521 is disposed in thefilter screen support 52 and is adapted to thefilter screen body 51, and thefilter screen body 51 can reciprocate along the axial direction of thewater outlet cavity 12 relative to thefilter screen support 52. When the valve is opened, thestrainer body 51 floats upward under the action of water pressure, and is pressed into thepositioning groove 521 of thestrainer holder 52 under the action of thediaphragm assembly 3 when the valve is closed. Thepositioning groove 521 of thefilter screen bracket 52 can guide thefilter screen body 51, so that thefilter screen 5 is prevented from deflecting, and the filter screen bracket can better cover thepressure relief hole 311 to prevent foreign matters from entering.
Thediaphragm assembly 3 of this embodiment specifically includesdiaphragm support 31 anddiaphragm body 32,diaphragm body 32 cover is establisheddiaphragm support 31 andwater inlet 121 and the relative one side ofdelivery port 111, the inner wall circumference ofdisk seat 1 is equipped with supporting platform,valve gap 2 will the periphery pressure ofdiaphragm body 32 is established supporting platform is last,diaphragm body 32 is close to circumferential part and arches topressure regulating chamber 21 one side.
Aguide cylinder 312 arranged opposite to thewater inlet 121 is arranged on thediaphragm support 31, and a first clamping groove matched with the thickness of thediaphragm body 32 is formed in the outer wall of theguide cylinder 312; thediaphragm support 31 is provided with aguide column 313 opposite to thewater outlet 111, and the outer wall of theguide column 313 is provided with a second clamping groove matched with the thickness of thediaphragm body 32.
In order to achieve a good enclosure effect, thefilter screen body 51 of the present embodiment is annular, and the cross section thereof is U-shaped.
Thepressure relief hole 311 of this embodiment is preferably provided on theguide post 313. Thescreen body 51 is opened at one side of theguide column 313, and the opening is matched with theguide column 313. Thefilter screen body 51 is preferably clamped with theguide column 313, so that thefilter screen body 51 can float synchronously along with themembrane assembly 3, and thefilter screen body 51 can block impurities in the fluid of thewater inlet cavity 11 to the outside to a greater extent, and the impurities are prevented from entering thepressure relief holes 311.
Alimiting support 314 is arranged on one side of thediaphragm support 31 opposite to thepressure regulating cavity 21, and the limitingsupport 314 is used for abutting against the cavity bottom of thepressure regulating cavity 21 so as to limit the maximum flow rate from thewater inlet cavity 11 to thewater outlet cavity 12.
In addition, with reference to fig. 6, 7 and 8, the present invention further provides another embodiment of an electromagnetic valve capable of self-cleaning afilter screen 5, including avalve seat 1, avalve cover 2, amembrane assembly 3 and avalve head 4, wherein awater inlet cavity 11, awater outlet cavity 12 and a firstpressure relief passage 13 communicated with thewater outlet cavity 12 are arranged in thevalve seat 1, thewater outlet cavity 12 is provided with awater inlet 121, and thewater inlet cavity 11 is provided with awater outlet 111 coaxially arranged with thewater inlet 121; apressure regulating cavity 21 and a secondpressure relief passage 22 are arranged in thevalve cover 2, one end of the secondpressure relief passage 22 is communicated with the firstpressure relief passage 13, and the other end of the secondpressure relief passage 22 is communicated with thepressure regulating cavity 21; thediaphragm assembly 3 is arranged in thepressure regulating cavity 21 in a floating manner and used for plugging thewater inlet 121 and thewater outlet 111, and apressure relief hole 311 for communicating thepressure regulating cavity 21 with thewater inlet cavity 11 is formed in thediaphragm assembly 3; asliding cavity 41 communicated with the secondpressure relief passage 22 is arranged in thevalve head 4, amovable iron core 42 is arranged in thesliding cavity 41, and themovable iron core 42 can slide in thesliding cavity 41 in a reciprocating manner to close or open the secondpressure relief passage 22; wherein,delivery port 111 internalization is equipped withfilter screen pressure release hole 311, justfilter screen 5 can float betweendelivery port 111 andpressure regulating cavity 21, and thisfilter screen 5 includesfilter screen body 51 andfilter screen support 52,filter screen body 51 andfilter screen support 52 integrated into one piece.
In summary, the implementation of the invention has the following beneficial effects:
1. thewater outlet 111 is provided with thefilter screen 5 covered outside thepressure relief hole 311, thefilter screen 5 floats together with themembrane component 3 under the action of water pressure, fluid entering thepressure regulating cavity 21 through thewater inlet cavity 11 can be filtered, impurities are prevented from entering thepressure relief hole 311, the secondpressure relief passage 22, the firstpressure relief passage 13 and thesliding cavity 41, the situation that themovable iron core 42 is clamped or the pressure relief passage is blocked is further avoided, the electromagnetic valve is smoothly opened and closed, and the reliability is high;
2. in addition, because thefilter screen 5 is floated under the action of water pressure, the filtered impurities and the sediments attached to the surface of the filter screen can be washed away along with the fluid through thewater outlet cavity 12, so that the self-cleaning effect of thefilter screen 5 is achieved, the situation of blockage can not occur, manual cleaning is not needed, and the application is very convenient.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. An electromagnetic valve capable of automatically cleaning a filter screen is characterized by comprising a valve seat, a valve cover, a diaphragm assembly and a valve head,
a water inlet cavity, a water outlet cavity and a first pressure relief passage communicated with the water outlet cavity are arranged in the valve seat, the water outlet cavity is provided with a water inlet, and the water inlet cavity is provided with a water outlet coaxial with the water inlet;
a pressure regulating cavity and a second pressure relief passage are arranged in the valve cover, one end of the second pressure relief passage is communicated with the first pressure relief passage, and the other end of the second pressure relief passage is communicated with the pressure regulating cavity;
the diaphragm assembly is arranged in the pressure regulating cavity in a floating mode and used for plugging the water inlet and the water outlet, and a pressure relief hole for communicating the pressure regulating cavity with the water inlet cavity is formed in the diaphragm assembly;
a sliding cavity communicated with the second pressure relief passage is arranged in the valve head, a movable iron core is arranged in the sliding cavity, and the movable iron core can slide in the sliding cavity in a reciprocating manner to close or open the second pressure relief passage;
the filter screen is movably arranged in the water outlet, the filter screen is arranged outside the pressure relief hole, and the filter screen can float between the water outlet and the pressure regulating cavity.
2. The solenoid valve for a self-cleaning filter screen of claim 1, wherein the filter screen comprises a filter screen body and a filter screen support, the filter screen support has a positioning groove therein, the positioning groove is adapted to the filter screen body, and the filter screen body can reciprocate relative to the filter screen support along the axial direction of the water outlet chamber.
3. The electromagnetic valve capable of self-cleaning a filter screen according to claim 1 or 2, wherein the diaphragm assembly comprises a diaphragm body and a diaphragm support, the diaphragm body is sleeved on one side of the diaphragm support opposite to the water inlet and the water outlet, a support platform is circumferentially arranged on the inner wall of the valve seat, the valve cover presses the periphery of the diaphragm body on the support platform, and the part of the diaphragm body close to the periphery is arched towards one side of the pressure regulating cavity.
4. The electromagnetic valve capable of automatically cleaning the filter screen according to claim 3, wherein the membrane bracket is provided with a guide cylinder arranged opposite to the water inlet, and the outer wall of the guide cylinder is provided with a first clamping groove matched with the thickness of the membrane body;
the diaphragm support is provided with a guide post opposite to the water outlet, and the outer wall of the guide post is provided with a second clamping groove matched with the thickness of the diaphragm body.
5. The solenoid valve for a self-cleaning filter screen of claim 4, wherein said pressure relief hole is provided in said guide post.
6. The solenoid valve for a self-cleaning filter screen of claim 5, wherein said filter screen body is ring-shaped and has a U-shaped cross-section.
7. The solenoid valve for a self-cleaning filter screen of claim 5 or 6, wherein the filter screen body is open to the side of the guide post, and the opening is adapted to the guide post.
8. The electromagnetic valve capable of self-cleaning a filter screen according to claim 3, wherein a limiting pillar is arranged on the side of the diaphragm support opposite to the pressure regulating cavity, and the limiting pillar is used for abutting against the cavity bottom of the pressure regulating cavity.
9. A solenoid valve for a self-cleaning filter screen as recited in claim 1 wherein said filter screen includes a filter screen body and a filter screen support, said filter screen body and said filter screen support being integrally formed.
10. The solenoid valve capable of self-cleaning a filter screen according to claim 1, wherein a compression spring is disposed at the bottom of the sliding cavity, an electromagnetic coil is disposed at the periphery of the sliding cavity, the compression spring causes the plunger to close the second pressure relief path, and the electromagnetic coil causes the plunger to open the second pressure relief path when power is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209641.XACN112377664B (en) | 2020-11-03 | 2020-11-03 | Solenoid valve capable of automatically cleaning filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011209641.XACN112377664B (en) | 2020-11-03 | 2020-11-03 | Solenoid valve capable of automatically cleaning filter screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112377664Atrue CN112377664A (en) | 2021-02-19 |
| CN112377664B CN112377664B (en) | 2024-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011209641.XAActiveCN112377664B (en) | 2020-11-03 | 2020-11-03 | Solenoid valve capable of automatically cleaning filter screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112377664B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113324801A (en)* | 2021-05-29 | 2021-08-31 | 林孔亮 | Sampler for detecting content of two insects in water and sampling method thereof |
| CN118669544A (en)* | 2024-08-23 | 2024-09-20 | 四川苏克流体控制设备股份有限公司 | High-temperature wear-resistant downward-expansion type discharging valve |
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- 2020
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|---|---|---|---|---|
| US4133763A (en)* | 1977-12-05 | 1979-01-09 | Pall Corporation | Filter assembly with replaceable filter element |
| CN2495869Y (en)* | 2001-07-16 | 2002-06-19 | 史振斌 | Self-cleaning electromagnetic valve having flow-rate control and filtering net |
| CN2666532Y (en)* | 2003-12-26 | 2004-12-29 | 明达塑胶（厦门）有限公司 | Multifunction filter |
| US20160341323A1 (en)* | 2014-01-20 | 2016-11-24 | Wenzhou Runxin Manufacturing Machine Co., Ltd. | Multifunctional softening valve and water processing apparatus thereof |
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Cited By (2)
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|---|---|---|---|---|
| CN113324801A (en)* | 2021-05-29 | 2021-08-31 | 林孔亮 | Sampler for detecting content of two insects in water and sampling method thereof |
| CN118669544A (en)* | 2024-08-23 | 2024-09-20 | 四川苏克流体控制设备股份有限公司 | High-temperature wear-resistant downward-expansion type discharging valve |
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| CN112377664B (en) | 2024-09-03 |
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