CN215110899U

CN215110899U - Solenoid valve diaphragm subassembly

Info

Publication number: CN215110899U
Application number: CN202121262203.XU
Authority: CN
Inventors: 文森林
Original assignee: Foshan Qindao Electronic Equipment Co ltd
Current assignee: Foshan Qindao Electronic Equipment Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-10
Anticipated expiration: 2031-06-07

Abstract

The utility model provides a solenoid valve diaphragm subassembly, including diaphragm and diaphragm frame, the diaphragm is including connecting diaphragm and sealed diaphragm, and the diaphragm frame includes from last first ring, second ring, cylinder portion, circular cone portion that connects gradually extremely down. The connecting diaphragm is in abutting connection with the first circular ring, and the sealing diaphragm is detachably sleeved on the second circular ring. The lower plane of the sealing diaphragm is a diaphragm plane, and the diaphragm plane is in sealing butt joint with a water cavity of the electromagnetic valve. The axis of the membrane frame is provided with a pressure relief hole. The utility model provides a solenoid valve diaphragm subassembly simple structure, simple to operate, sealed effectual avoid appearing high water hammer, increase of service life in the use.

Description

Solenoid valve diaphragm subassembly

Technical Field

The utility model belongs to the technical field of the solenoid valve subassembly, especially, relate to a solenoid valve diaphragm subassembly.

Background

At present, the electromagnetic valve is mainly used in an automatic control system which takes water as a medium, such as an induction sanitary appliance, an I C water meter and the like. The general electromagnetic valve mainly comprises an assembled valve head, a valve cover and a valve body, wherein the valve body comprises inlet water, a water inlet cavity, a water outlet cavity and a water outlet, which are communicated with a water source. The valve body is generally provided with a diaphragm assembly, and the diaphragm assembly mainly plays a role in sealing in the electromagnetic valve.

After the existing electromagnetic valve is closed, water flow is rapidly reduced, the water pressure at the water inlet end is suddenly changed, and high water hammer occurs. Eventually, the solenoid valve will not meet the requirements of the non-contact water supply appliance C JT194-2014 on water hammer performance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a solenoid valve diaphragm subassembly, including diaphragm and diaphragm frame, the diaphragm is including connecting diaphragm and sealed diaphragm, and the diaphragm frame includes from last first ring, second ring, cylinder portion, the cone portion that connects gradually extremely down. The connecting diaphragm is abutted against the first circular ring, and the sealing diaphragm is detachably sleeved on the second circular ring. The lower plane of the sealing diaphragm is a diaphragm plane, and the diaphragm plane is in sealing butt joint with a water cavity of the electromagnetic valve. The axis of the membrane frame is provided with a pressure relief hole. Through set up cylinder portion and circular cone portion on the diaphragm frame, when closing the valve, along with the slow decline of diaphragm frame, the rivers space is less gradually, and discharge reduces gradually until the rivers stop completely to lead to the pressure of water inlet can not take place the sudden change, avoid appearing high water hammer, increase of service life.

Preferably, at least one flow guide groove is arranged near the circumferential edge of the conical part, the flow guide groove is communicated with the pressure relief hole to form a pressure relief passage, the water flow can be adjusted, and the pressure relief effect is good.

Preferably, the number of the guide grooves is even and the guide grooves are symmetrically arranged on the central axis. The symmetrical arrangement can ensure that water flows on two sides of the conical part of the diaphragm frame uniformly flow into the pressure relief holes, so that the diaphragm frame is prevented from moving at other positions due to different left and right water pressures.

Preferably, the diameter of the pressure relief hole is larger than that of the diversion trench, so that water in the diversion trench can enter the pressure relief hole more quickly.

Preferably, the diameter of the cylindrical portion is equal to the diameter of the conical portion. When guaranteeing the diaphragm frame and moving downwards, the rivers space is more slowly reduced gradually.

Preferably, the membrane frame is also provided with a balance hole, which is beneficial to better pressure relief.

Preferably, the first ring is arc-shaped and radiates outwards, and the connecting diaphragm is arc-shaped and radiates outwards and is matched with the arc-shaped first ring. The diaphragm can conveniently limit the diaphragm frame and simultaneously has better sealing effect.

Preferably, the membrane material is elastic polymer material, is favorable to better sealed.

Preferably, the diaphragm is made of rubber, so that the cost is low and the processing is easy.

The utility model discloses a solenoid valve diaphragm subassembly through add cylinder portion and circular cone portion on the diaphragm frame, sets up the guiding gutter all around in circular cone portion, when closing the valve, along with the slow decline of diaphragm frame, the rivers space is less gradually, and discharge reduces gradually and stops completely until rivers to the pressure that leads to the water inlet can not take place the sudden change, avoids appearing high water hammer, increase of service life. The diaphragm frame integrated structure enables the diaphragm assembly to be simple in structure, convenient to install and good in sealing effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings that are used in the description of the embodiments or the related art will be briefly described below.

Fig. 1 is a bottom view of the diaphragm assembly of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an assembly schematic of the diaphragm assembly assembled within the valve body.

Reference numerals:

1. a membrane; 11. connecting the membranes; 12. sealing the membrane; 121. a diaphragm plane; 2. a film frame; 21. a first circular ring; 22. a second circular ring; 23. a cylindrical portion; 24. a conical section; 241. a diversion trench; 25. a pressure relief vent; 26. a balance hole; 3. a base; 4. a water inlet; 5. a water inlet cavity; 6. a water outlet; 7. a water outlet cavity; 8. a valve port space; 81. valve port 9, seal the horizontal plane.

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 detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 2 and fig. 3, the present invention includes a membrane 1 and a membrane frame 2, wherein the membrane 1 includes a connecting membrane 11 and a sealing membrane 12. The diaphragm 1 is made of elastic high polymer material, so that a better sealing effect can be obtained. Preferably, the diaphragm 1 is made of rubber, so that the cost is low and the processing is easy.

The membrane holder 2 comprises a first circular ring 21, a second circular ring 22, a cylindrical part 23 and a conical part 24 which are sequentially connected from top to bottom, wherein the diameter of the cylindrical part 23 is equal to that of the conical part 24. When guaranteeing the diaphragm frame 2 moves downwards, the rivers space is more slowly reduced gradually. In other embodiments, the diameter of the conical portion 24 is smaller than the diameter of the cylindrical portion 23.

As shown in fig. 2, the connection diaphragm 11 abuts against the first circular ring 21, the first circular ring 21 is in a circular arc shape radiating outwards, the connection diaphragm 11 is in a circular arc shape radiating outwards and matched with the circular arc shape of the first circular ring 21, and the arrangement is convenient for the diaphragm 1 to limit the diaphragm frame 2 and simultaneously achieve a better sealing effect. The sealing diaphragm 12 is detachably fitted on the second ring 22. The lower plane of the sealing diaphragm 12 is a diaphragm plane 121, and when the valve is closed, the diaphragm plane 121 abuts against the water sealing surface of the electromagnetic valve, so that the water closing effect is achieved.

As shown in fig. 1, at least one flow guide groove 241 is formed near the circumferential edge of the conical portion 24 when viewed from the bottom of the diaphragm assembly upward, and the flow guide groove 241 communicates with the pressure relief hole 25. The diversion groove 241 is communicated with the pressure relief hole 25, so that a pressure relief passage can be formed, the water flow is adjusted, and the pressure relief effect is good. In other embodiments, the number of the guiding grooves 241 may be an even number of 2, 4, or 6, and the like, and are symmetrically arranged about the central axis. The symmetrical arrangement can ensure that water flows on two sides of the conical part 24 of the diaphragm frame 2 uniformly flow into the pressure relief hole 25, so that the diaphragm frame is prevented from moving in other directions due to different left and right water pressures. The combination of the guide groove 241 and the conical portion 24 functions to regulate the water flow.

The axle center of the membrane frame 2 is provided with a pressure relief hole 25, and the two sides of the membrane frame 2 are also provided with balance holes 26. Is beneficial to better pressure relief. Preferably, the diameter of the pressure relief hole 25 is larger than that of the guide groove 241. The arrangement facilitates the water in the diversion trench 241 to enter the pressure relief hole 25 more quickly, and water can be drained smoothly.

The utility model discloses a theory of operation does: the water is switched on and off by the up-and-down movement of a diaphragm assembly consisting of the diaphragm 1 and the diaphragm frame 2. When water is boiled, the diaphragm plane 121 and the water sealing surface 9 are gradually separated along with the slow upward movement of the diaphragm assembly consisting of the diaphragm 1 and the diaphragm frame 2, the cylindrical part 23 and the conical part 24 of the diaphragm frame 2 also ascend, and water reaches the water inlet cavity from the water inlet 4, flows through the valve port space to the water outlet cavity and finally flows out from the water outlet 6.

When the valve is closed, the diaphragm assembly composed of the diaphragm 1 and the diaphragm frame 2 moves downwards, along with the slow descending of the conical part 24, the valve port space 8 is caused to be reduced from large to small, the water flowing into the valve port space is also reduced from large to small, when the cylindrical part 23 also enters the valve port space, because the cylindrical part and the inner wall of the valve port 81 only have a small gap, the flow of the water is further reduced, along with the downward movement of the diaphragm assembly, after the diaphragm plane 121 is contacted with the water sealing plane 9, the diaphragm assembly and the valve body form a complete sealing state, the water does not flow, and the water closing effect is realized. The whole water shutting process realizes that the water flow is slowly reduced and then thoroughly stopped, so that the pressure of the water inlet 4 cannot be suddenly changed, the occurrence of high water attack risk is effectively avoided, and the service life is prolonged. The diaphragm frame integrated structure enables the diaphragm assembly to be simple in structure, convenient to install and good in sealing effect.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A solenoid valve diaphragm assembly, includes diaphragm (1) and diaphragm frame (2), its characterized in that: the diaphragm (1) comprises a connecting diaphragm (11) and a sealing diaphragm (12), and the diaphragm frame (2) comprises a first circular ring (21), a second circular ring (22), a cylindrical part (23) and a conical part (24) which are sequentially connected from top to bottom; the connecting diaphragm (11) is abutted against the first circular ring (21), and the sealing diaphragm (12) is detachably sleeved on the second circular ring (22); the lower plane of the sealing diaphragm (12) is a diaphragm plane (121), and the diaphragm plane (121) is in sealing and abutting joint with a water cavity of the electromagnetic valve; and a pressure relief hole (25) is formed in the axis of the membrane frame (2).

2. A solenoid valve diaphragm assembly according to claim 1 wherein: at least one guide groove (241) is formed near the circumferential edge of the conical part (24), and the guide groove (241) is communicated with the pressure relief hole (25).

3. A solenoid valve diaphragm assembly according to claim 2 wherein: the number of the flow guide grooves (241) is even, and the flow guide grooves are symmetrically arranged along the central axis.

4. A solenoid valve diaphragm assembly according to claim 2 wherein: the diameter of the pressure relief hole (25) is larger than that of the diversion trench (241).

5. A solenoid valve diaphragm assembly according to claim 1 wherein: the diameter of the cylindrical portion (23) is equal to the diameter of the conical portion (24).

6. A solenoid valve diaphragm assembly according to claim 1 wherein: the membrane frame (2) is also provided with a balance hole (26).

7. A solenoid valve diaphragm assembly according to claim 1 wherein: the first circular ring (21) is in a circular arc shape radiating outwards, and the connecting diaphragm (11) is in a circular arc shape radiating outwards and matched with the circular arc shape of the first circular ring (21).

8. A solenoid valve diaphragm assembly according to claim 1 wherein: the diaphragm (1) is made of elastic high polymer material.

9. A solenoid valve diaphragm assembly according to claim 8 wherein: the diaphragm (1) is made of rubber.