CN212297728U

CN212297728U - Diaphragm assembly of electromagnetic valve and electromagnetic valve

Info

Publication number: CN212297728U
Application number: CN202021001705.2U
Authority: CN
Inventors: 张松根; 洪加明; 张振国
Original assignee: Xiamen Olt Science & Technology Electronic Developing Co ltd
Current assignee: Xiamen Olt Science & Technology Electronic Developing Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-01-05
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a fluid switch control field. The utility model discloses a diaphragm subassembly and solenoid valve of solenoid valve, wherein, the diaphragm subassembly of solenoid valve includes the gland, the stagnant water diaphragm, sealed diaphragm and diaphragm frame, be equipped with the isolation cavity of lower extreme open-ended on the gland, it is equipped with downwardly extending's cylinder portion to keep apart in the cavity, the sealed setting of stagnant water diaphragm is on the opening of keeping apart the cavity, the stagnant water diaphragm is fixed to be set up on the diaphragm frame, stagnant water diaphragm and diaphragm frame movable sleeve establish on the main part and seal by sealed diaphragm, be equipped with on the diaphragm frame and keep apart the water conservancy diversion hole of cavity intercommunication, be equipped with in the cylinder portion and keep apart the pressure release passageway of cavity intercommunication, the diaphragm frame includes first diaphragm frame and second diaphragm frame, first diaphragm frame and second diaphragm frame can dismantle the connection and constitute an installation cavity, sealed diaphragm fixed mounting is in the installation cavity and sealed movable sleeve establishes on the cylinder portion. The utility model discloses a sealed diaphragm is together sealed fixed with the diaphragm frame, is difficult for droing, long service life, and the dismouting is convenient.

Description

Diaphragm assembly of electromagnetic valve and electromagnetic valve

Technical Field

The utility model belongs to fluid switch control field specifically relates to a diaphragm subassembly and solenoid valve of solenoid valve.

Background

The electromagnetic valve is an automatic valve which controls the on-off of fluid by electromagnetism, has the advantages of simple system, easy control, quick action, low power consumption, high safety, low cost and the like, and is widely applied to various fluid automatic control fields, such as an induction tap, an induction flushing valve and the like.

The diaphragm assembly of the traditional electromagnetic valve is complex in structure, large in size, not beneficial to product miniaturization, loose in parts, easy to lose or neglected to install, and troublesome in assembly and maintenance, and the product function is invalid. The patent publication: CN 209278602U discloses a water stop assembly, which better solves the above existing problems, but the sealing member of the water stop assembly and the floating seat are separately arranged, the sealing member is abutted against the floating seat by its own elasticity to realize sealing, and the existing problems are: the sealing element and the floating seat are easy to fall off, so that the sealing failure of the floating seat is caused, the service life is short, and the integrity is still to be improved.

Disclosure of Invention

An object of the utility model is to provide a diaphragm subassembly and solenoid valve of solenoid valve are used for solving the technical problem that the above-mentioned exists.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a diaphragm subassembly of solenoid valve, which comprises a gland, the stagnant water diaphragm, sealed diaphragm and diaphragm frame, be equipped with the lower extreme open-ended isolation cavity on the gland, keep apart the cylinder portion that is equipped with downwardly extending in the cavity, the sealed setting of stagnant water diaphragm is on the opening of keeping apart the cavity, the fixed setting of stagnant water diaphragm is on diaphragm frame, stagnant water diaphragm and diaphragm frame movable sleeve establish on the cylinder portion and seal by sealed diaphragm, be equipped with on the diaphragm frame and keep apart the water conservancy diversion hole of cavity intercommunication, be equipped with in the cylinder portion and keep apart the pressure release passageway of cavity intercommunication, diaphragm frame includes first diaphragm frame and second diaphragm frame, first diaphragm frame and second diaphragm frame can dismantle the connection and constitute an installation cavity, sealed diaphragm fixed mounting is in installation cavity and sealed movable sleeve establishes on the cylinder portion.

Furthermore, first diaphragm frame and second diaphragm frame pass through the buckle joint and can dismantle the connection.

Further, still include the mounting, the mounting joint is fixed at the lower extreme of column body and restriction stagnant water diaphragm and diaphragm frame are deviate from the lower extreme of column body.

Furthermore, the fixing piece is of an annular structure, a convex ring is arranged on the inner surface of the fixing piece, an annular clamping groove is formed in the outer peripheral face of the lower end of the column body portion, and the fixing piece is clamped and fixed at the lower end of the column body portion in the annular clamping groove through the convex ring.

Furthermore, the diaphragm frame is provided with a water outlet end which penetrates through the water stop diaphragm and extends downwards, and a diversion trench is arranged on the water outlet end.

Furthermore, the number of the flow guide grooves is multiple, and the multiple flow guide grooves are arranged at intervals to form an annular structure taking the cylindrical part as a central axis.

Furthermore, a plurality of convex teeth extending downwards are arranged at the water outlet end of the membrane frame, the convex teeth are arranged at intervals to form a circular ring-shaped structure, and a diversion trench is formed between every two adjacent convex teeth.

Furthermore, the device also comprises a guide pin arranged in the isolation cavity, and the guide pin is movably arranged in the flow guide hole in a penetrating way.

Furthermore, the device also comprises a compression spring arranged in the isolation cavity, the guide pin is fixedly connected with one end part of the compression spring, and the compression spring is abutted between the gland and the diaphragm frame to fix the guide pin in the isolation cavity.

The utility model also discloses a solenoid valve, be equipped with the diaphragm subassembly of foretell solenoid valve.

The utility model has the advantages of:

the utility model discloses a diaphragm frame includes first diaphragm frame and second diaphragm frame, and first diaphragm frame and second diaphragm frame can be dismantled to connect and constitute an installation cavity, and sealed diaphragm fixed mounting is in the installation cavity and together with diaphragm frame seal fixation, are difficult for droing, long service life, the wholeness is stronger, and the assembly is more convenient with the maintenance, in addition, the utility model discloses simple structure is compact, and is small, and the reliability is high.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a perspective view of another perspective of an embodiment of the present invention;

FIG. 3 is an exploded view of an embodiment of the present invention;

fig. 4 is an exploded view from another perspective of an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an embodiment of the present invention;

fig. 6 is a cross-sectional view from another angle of an embodiment of the present invention;

fig. 7 is a structural view of the water stop diaphragm according to the embodiment of the present invention;

fig. 8 is a partial structural view of an embodiment of the present invention.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1, a diaphragm assembly of a solenoid valve includes a gland 1, a water stop diaphragm 2, a sealing diaphragm 3 and a diaphragm frame 4, wherein the gland 1 is provided with an isolation cavity 11 with an open lower end (with the direction of fig. 5 as a reference), the top inside the isolation cavity 11 is provided with a column portion 12 extending downwards, and preferably, the column portion 12 is arranged at the center of the isolation cavity 11, so that the overall structure is more compact and reasonable, but not limited thereto.

In this embodiment, the cylindrical portion 12 is preferably cylindrical and easy to machine and seal, but not limited thereto, and in other embodiments, the cylindrical portion 12 may be prismatic or the like.

In this embodiment, the isolation cavity 11 is preferably a cylindrical structure, which is more compact and reasonable and easy to process, but not limited thereto. Specifically, in this embodiment, the gland 1 includes a square plate-shaped body, and the lower surface of the plate-shaped body is provided with an integral downwardly extending cylindrical side wall to form the isolation cavity 11.

A pressure relief channel 121 communicated with the isolation cavity 11 is arranged in the column 12, an outlet end of the pressure relief channel 121 is located on a lower end face of the column 12, an inlet end of the pressure relief channel 121 penetrates through the top of the isolation cavity 11 (namely, the plate-shaped body) and extends into a pressure relief control cavity 13 arranged on the top face of the gland 1, the opening and closing of the pressure relief control cavity are controlled by a movable iron core assembly of the electromagnetic valve, and the pressure relief control cavity 13 is provided with a communication channel 14 communicated with the isolation cavity 11.

Sealing up diaphragm 2 is sealed to be set up on the opening of keeping apart cavity 11, sealing up diaphragm 2 is fixed to be set up on diaphragm frame 4, sealing up diaphragm 2 and diaphragm frame 4 movable sleeve establish on column portion 12 and seal up by sealed diaphragm 3, it is specific, sealing up diaphragm 2's the outer peripheral edges and the sealed fixed connection of lower terminal surface of keeping apart the chamber wall of cavity 11, sealing up diaphragm 2's centre is equipped with the hole of stepping down 21 that steps down in column portion 12, diaphragm frame 4 sets up in keeping apart cavity 11, sealing up diaphragm 2 and diaphragm frame 4 fixed connection, and sealing up diaphragm 2 steps down hole 21 and diaphragm frame 4 and be sealed setting.

In this embodiment, the membrane frame 4 is provided with a downward convex fixing portion, the fixing portion is provided with an annular fixing groove 421, the fixing portion is disposed in the yielding hole 21 in a penetrating manner, and the water stopping membrane 2 is sealed and clamped in the annular fixing groove 421 through the hole wall of the yielding hole 21 and is fixed to the membrane frame 4 in a sealing manner. By adopting the structure, the structure is simple, the assembly is easy, the stability and the sealing performance are good, but the structure is not limited to the structure.

In this embodiment, the water stop membrane 2 is made of rubber, which is low in cost, easy to process and long in service life, and in other embodiments, the water stop membrane 2 may also be made of other flexible materials with certain elasticity.

In this embodiment, the diaphragm frame 4 is made of plastic, and has good stability, easy implementation and low cost, but not limited thereto.

The diaphragm frame 4 comprises a first diaphragm frame 41 and a second diaphragm frame 42, the first diaphragm frame 41 and the second diaphragm frame 42 are detachably connected to form an installation cavity, and the sealing diaphragm 3 is fixedly installed in the installation cavity and is sleeved on the column portion 12 in a sealing and movable manner.

Specifically, the first diaphragm frame 41 is provided with a yielding hole 412 and is of an annular structure, the first diaphragm frame 41 is movably sleeved on the cylindrical portion 12 through the yielding hole 412, the second diaphragm frame 42 is provided with a yielding hole 423, the second diaphragm frame 42 is movably sleeved on the cylindrical portion 12 through the yielding hole 423, the first diaphragm frame 41 is located above the second diaphragm frame 42, the sealing diaphragm 3 is of a horn-shaped structure, the sealing diaphragm 3 is movably sleeved on the cylindrical portion 12, the small hole end is in sealing movable contact with the cylindrical portion 12, the large hole end of the sealing diaphragm 3 is provided with an annular sealing edge 31, the periphery of the yielding hole 423 of the second diaphragm frame 42 is provided with an annular sealing groove 426, the annular sealing edge 31 is embedded in the sealing groove 426 in a sealing manner and is clamped and fixed by the first diaphragm frame 41.

Preferably, in this embodiment, the first film frame 41 and the second film frame 42 are detachably connected by being clamped and connected by a buckle, so that the structure is simple, the stability and the stability are good, and the dismounting and mounting are simple and convenient, but not limited to this, in other embodiments, the first film frame 41 and the second film frame 42 may also be detachably connected by using other existing detachable structures, which can be easily implemented by those skilled in the art, and will not be described in detail.

Specifically, in this embodiment, the first film frame 41 is provided with a fastening hole 411, and the second film frame 42 is provided with a fastening 422, but in other embodiments, the first film frame 41 may be provided with a fastening, and the second film frame 42 may be provided with a fastening hole.

In this embodiment, the fastening holes 411 and the fastening buckles 422 are both plural, so that the fastening effect is better.

In this embodiment, the sealing membrane 3 is preferably made of a rubber material, and is easy to process, low in cost, good in sealing effect, and long in service life, but not limited thereto.

The diaphragm frame 4 is provided with a flow guide hole 43 communicated with the isolation cavity 11, specifically, the flow guide hole 43 is arranged on the second diaphragm frame 42, one end of the flow guide hole 43 is communicated with the isolation cavity 11, and the other end of the flow guide hole 43 penetrates through the water stop diaphragm 2 and extends out of the lower part of the water stop diaphragm 2 to be communicated with a liquid inlet or air inlet channel of the valve seat.

In this embodiment, the device further includes a guide pin 5 disposed in the isolation cavity 11, the guide pin 5 is movably disposed in the diversion hole 43, and a gap is formed between the guide pin 5 and the diversion hole 43. When the water stop membrane 2 and the membrane frame 4 move up and down, the guide pin 5 and the guide hole 43 move relatively, so that the guide hole 43 can be self-cleaned, and the guide hole 43 can be prevented from being blocked by water scales.

In this embodiment, the device further includes a compression spring 6 disposed in the isolation cavity 11, the guide pin 5 is fixedly connected to an end of the compression spring 6, the compression spring 6 abuts against between the gland 1 and the diaphragm frame 4 to fix the guide pin 5 in the isolation cavity 11, the assembly is convenient, the cost is low, but not limited thereto, in other embodiments, the guide pin 5 may also adopt other fixing structures, such as fixing holes, for fixing and installation.

In this embodiment, the compression spring 6 and the guide pin 5 are preferably an integral structural member, which is easy to implement, reduces the number of parts, and has stronger integrity.

Further, in the embodiment, the water-stopping diaphragm 2 and the diaphragm frame 4 are prevented from falling off from the lower end of the column part 12 by the fixing part 7 detachably clamped and fixed at the lower end of the column part 12. The clamping connection mode is adopted, the assembly is simple, the falling is not easy, and meanwhile, the whole assembly is stronger in integrity and easy to replace.

Specifically, in this embodiment, the fixing member 7 is an annular structure, the inner surface of the fixing member 7 is provided with the protruding ring 71, the outer peripheral surface of the lower end of the column 12 is provided with the annular clamping groove 122, and the fixing member 7 is clamped and fixed in the annular clamping groove 122 through the protruding ring 71, so that the fixing member 7 is compact in structure, easy to implement, and good in stability, in other embodiments, the fixing member 7 may be of other structures, and the fixing member 7 and the lower end of the column 12 may also be implemented by using other clamping structures.

Further, in this embodiment, the membrane frame 4 has a water outlet end extending downward through the water stop membrane 2, and the water outlet end is provided with a flow guide groove 424 for guiding the liquid, which is beneficial to reducing the noise of the liquid.

Specifically, in this embodiment, the water outlet end is formed by extending the fixing portion of the second membrane holder 42 downward, the number of the flow guide grooves 424 is 5, and the 5 flow guide grooves 424 are arranged at intervals to form an annular structure with the column 12 as a central axis, so that the flow guide effect is better. Of course, in other embodiments, the number of channels 424 may be less than 5 or more than 5.

In this embodiment, the fixing portion of the second film frame 42 is provided with 5 downwardly extending convex teeth 425, the 5 convex teeth 425 are arranged at intervals to form a circular structure, and the flow guide groove 424 is formed between the adjacent convex teeth 425.

The working principle of the present invention will be described below by taking the water used for controlling the switch in the water channel as an example, and the working principle of other fluids is the same:

1. when the electromagnetic valve is closed, that is, when the pressure relief channel 121 is closed, water at the water inlet of the valve seat flows into the isolation cavity 11 through the flow guide hole 43, the pressure of the isolation cavity 11 rises, the diaphragm frame 4 and the water stop diaphragm 2 are pushed to move downwards to seal and press the water outlet of the valve seat, and the valve is closed when water is discharged.

2. When the solenoid valve is opened, namely the pressure relief channel 121 is switched on, water in the isolation cavity 11 is discharged from the water outlet of the valve seat through the communication channel 14, the pressure relief control cavity 13 and the pressure relief channel 121, the pressure in the isolation cavity 11 is reduced, the water pressure of the water inlet of the valve seat is increased, the water stop diaphragm 2 is pushed to move upwards to be separated from the water outlet of the valve seat, and the water in the water inlet of the valve seat is directly discharged from the water outlet of the valve seat to realize valve opening.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a diaphragm subassembly of solenoid valve, which comprises a gland, the stagnant water diaphragm, sealed diaphragm and diaphragm frame, be equipped with the lower extreme open-ended isolation cavity on the gland, keep apart the cylinder portion that is equipped with downwardly extending in the cavity, the sealed setting of stagnant water diaphragm is on the opening of keeping apart the cavity, the fixed setting of stagnant water diaphragm is on diaphragm frame, stagnant water diaphragm and diaphragm frame movable sleeve establish on the cylinder portion and seal by sealed diaphragm, be equipped with on the diaphragm frame and keep apart the water conservancy diversion hole of cavity intercommunication, be equipped with in the cylinder portion and keep apart the pressure release passageway of cavity intercommunication, its characterized in that: the diaphragm frame comprises a first diaphragm frame and a second diaphragm frame, the first diaphragm frame and the second diaphragm frame are detachably connected to form an installation cavity, and the sealing diaphragm is fixedly installed in the installation cavity and is movably sleeved on the column body in a sealing mode.

2. The diaphragm assembly of a solenoid valve according to claim 1, wherein: first diaphragm frame and second diaphragm frame pass through the buckle joint and can dismantle the connection.

3. The diaphragm assembly of a solenoid valve according to claim 1, wherein: the water stop diaphragm and the diaphragm frame are limited to be separated from the lower end of the column body part by the fixing part which is clamped and fixed at the lower end of the column body part.

4. A diaphragm assembly of a solenoid valve according to claim 3, wherein: the fixing piece is of an annular structure, a convex ring is arranged on the inner surface of the fixing piece, an annular clamping groove is formed in the outer peripheral face of the lower end of the column body, and the fixing piece is clamped in the annular clamping groove through the convex ring and is fixed to the lower end of the column body in a clamping mode.

5. The diaphragm assembly of a solenoid valve according to claim 1, wherein: the diaphragm frame is provided with a water outlet end which penetrates through the water stop diaphragm and extends downwards, and the water outlet end is provided with a diversion trench.

6. The diaphragm assembly of a solenoid valve according to claim 5, wherein: the number of the flow guide grooves is multiple, and the flow guide grooves are arranged at intervals to form an annular structure taking the column part as a central shaft.

7. The diaphragm assembly of a solenoid valve according to claim 6, wherein: the water outlet end of the membrane frame is provided with a plurality of convex teeth extending downwards, the convex teeth are arranged at intervals to form a circular ring structure, and a diversion trench is formed between every two adjacent convex teeth.

8. The diaphragm assembly of a solenoid valve according to claim 1, wherein: the device also comprises a guide pin arranged in the isolation cavity, and the guide pin is movably arranged in the flow guide hole in a penetrating way.

9. The diaphragm assembly of a solenoid valve according to claim 8, wherein: the device also comprises a compression spring arranged in the isolation cavity, the guide pin is fixedly connected with one end part of the compression spring, and the compression spring is abutted between the gland and the diaphragm frame to fix the guide pin in the isolation cavity.

10. A solenoid valve, characterized by: a diaphragm assembly provided with a solenoid valve according to any one of claims 1 to 9.