CN209781843U - Pressure relief structure of valve body - Google Patents
Pressure relief structure of valve body Download PDFInfo
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- CN209781843U CN209781843U CN201822222204.6U CN201822222204U CN209781843U CN 209781843 U CN209781843 U CN 209781843U CN 201822222204 U CN201822222204 U CN 201822222204U CN 209781843 U CN209781843 U CN 209781843U
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- pressure
- pressure relief
- outlet channel
- water outlet
- water
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Abstract
the utility model discloses a pressure release structure of valve body, valve body include the water outlet channel, and pressure release structure includes pressure chamber, first pressure release passageway and stagnant water unit, and under the normality, the stagnant water unit cuts off the water outlet channel with first pressure release passageway works as water outlet channel's pressure is greater than during the pressure of pressure chamber, the stagnant water unit is in communicate under water outlet channel's the pressure effect water outlet channel with first pressure release passageway still includes a separation unit, works as stagnant water unit intercommunication water outlet channel with during first pressure release passageway, through the separation unit blocks water outlet channel's rivers to the pressure chamber, and then reduce the effort of pressure chamber to the stagnant water unit, improve the pressure release capacity of valve body, the security is better.
Description
Technical Field
The utility model relates to a pressure release structure of valve body.
background
At present, most valve bodies contain a pressure relief structure and comprise a water outlet channel, a pressure relief channel, a pressure cavity and a water stop pad, wherein the water stop pad is cut off under the action of the pressure cavity under the normal state, the water outlet channel and the pressure relief channel are connected, when the water pressure in the water outlet channel exceeds a preset pressure value, the water stop pad is communicated with the water outlet channel and the pressure relief channel under the action of the water flow pressure of the water outlet channel, but the pressure cavity is increased because the flow cross section of the pressure cavity is large, more water flows in the water outlet channel enter the pressure cavity, at the moment, the water stop pad moves in a reset mode under the action of the pressure cavity pressure, the flow cross section of the water outlet channel and the pressure relief channel is small, the pressure relief capacity is limited, and the water pipe at the rear end of.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned problem, provide a pressure release structure of valve body.
In order to achieve the above object, the utility model adopts the following technical scheme:
The utility model provides a pressure release structure of valve body, the valve body includes the water outlet channel, and pressure release structure includes pressure chamber, first pressure release passageway and stagnant water unit, under the normality, stagnant water unit cuts off the water outlet channel with first pressure release passageway, works as the pressure of water outlet channel is greater than when the pressure of pressure chamber, stagnant water unit is in communicate under the pressure effect of water outlet channel the water outlet channel with first pressure release passageway, still include a separation unit, works as stagnant water unit intercommunication the water outlet channel with during the first pressure release passageway, through the separation unit blocks the rivers of water outlet channel to the pressure chamber.
Preferably, a pressure relief cavity is formed in the valve body, the water outlet channel is communicated with the pressure relief cavity through a pressure relief opening, the first pressure relief channel is communicated with the pressure relief cavity, and the water stop unit is movably arranged and opens or closes the pressure relief opening.
Preferably, the water stopping unit is movably arranged in the pressure relief cavity, the pressure cavity is formed between one side of the water stopping unit, which is far away from the pressure relief opening, and the inner wall of the pressure relief cavity, a gap is formed between the water stopping unit and the inner wall of the pressure relief cavity, and the blocking unit is arranged between the water stopping unit and the inner wall of the pressure relief cavity to eliminate or reduce the gap.
Preferably, the blocking unit is disposed on the water stopping unit.
Preferably, the blocking unit is a sealing ring or a water retaining rib.
Preferably, an elastic member is arranged in the pressure chamber, and the elastic force of the elastic member forms the pressure of the pressure chamber.
Preferably, the pressure of the water outlet channel overcomes the elastic force of the elastic member to drive the water stop unit to communicate the water outlet channel and the first pressure relief channel.
Preferably, the pressure chamber is provided with a second pressure relief channel for communicating the pressure chamber with the outside atmosphere.
The utility model has the advantages that:
1. The utility model discloses a pressure release structure of valve body, valve body include the water outlet channel, and pressure release structure includes pressure chamber, first pressure release passageway and stagnant water unit, and under the normality, the stagnant water unit cuts off the water outlet channel with first pressure release passageway works as the pressure of water outlet channel is greater than during the pressure of pressure chamber, the stagnant water unit is in communicate under the pressure effect of water outlet channel the water outlet channel with first pressure release passageway still includes a separation unit, works as stagnant water unit intercommunication the water outlet channel with during first pressure release passageway, through the separation unit blocks the rivers of water outlet channel to the pressure chamber, and then reduce the effort of pressure chamber to the stagnant water unit, improve the pressure release capacity of valve body, the security is better.
2. The pressure chamber is equipped with the intercommunication the second pressure release passageway of pressure chamber and external atmospheric, and the water accessible second pressure release passageway that gets into the pressure chamber discharges, can further reduce the effort of pressure chamber to stagnant water unit.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
Fig. 1 is a perspective view of a pressure relief structure of a valve body according to the present invention;
fig. 2 is one of cross-sectional views of a pressure relief structure of a valve body according to the present invention;
Fig. 3 is a second cross-sectional view of the pressure relief structure of the valve body according to the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1 to 3, a pressure relief structure of a valve body, where a valve body 1 includes a water outlet channel 10, the pressure relief structure includes a pressure chamber 20, a first pressure relief channel 30, and a water stopping unit 40, in a normal state, the water stopping unit 40 cuts off the water outlet channel 10 and the first pressure relief channel 30, when a pressure of the water outlet channel 10 is greater than a pressure of the pressure chamber 20, the water stopping unit 40 communicates the water outlet channel 10 and the first pressure relief channel 30 under a pressure effect of the water outlet channel 10, and further includes a blocking unit 50, and when the water stopping unit 40 communicates the water outlet channel 10 and the first pressure relief channel 30, water in the water outlet channel 10 is blocked from flowing to the pressure chamber 20 by the blocking unit 50.
in this embodiment, a pressure relief cavity 80 is formed on the valve body 1, the water outlet channel 10 is communicated with the pressure relief cavity 80 through a pressure relief opening 81, the first pressure relief channel 30 is communicated with the pressure relief cavity 80, and the water stop unit 40 is movably disposed and opens or closes the pressure relief opening 81.
In this embodiment, the water stopping unit 40 is movably installed in the pressure relief cavity 80, the pressure cavity 20 is formed between one side of the water stopping unit 40 away from the pressure relief port 81 and the inner wall of the pressure relief cavity 80, a gap a is formed between the water stopping unit 40 and the inner wall of the pressure relief cavity 80, the blocking unit 50 is disposed between the water stopping unit 40 and the inner wall of the pressure relief cavity 80 to eliminate or reduce the gap a, in this embodiment, the blocking unit 50 is disposed on the water stopping unit 40, the blocking unit is a sealing ring or a water blocking rib, preferably, the blocking unit adopts a sealing ring sleeved on the water stopping unit 40, and further forms a sealing fit with the inner wall of the pressure cavity 20, in this embodiment, a Y-shaped sealing ring is specifically adopted, although the blocking unit can also adopt a water blocking rib, and allows a small amount of water to enter the pressure cavity 20, the water introduced into the pressure chamber 20 is not enough to exert a force on the water stopping unit 40.
In this embodiment, an elastic member 60 is disposed in the pressure chamber 20, the elastic force of the elastic member 60 forms the pressure of the pressure chamber 20, and the elastic member 60 is specifically a compression spring.
In this embodiment, the pressure of the water outlet channel 10 overcomes the elastic force of the elastic member 60 to drive the water stop unit 40 to communicate the water outlet channel 10 and the first pressure relief channel 30.
In this embodiment, the pressure chamber 20 is provided with a second pressure relief passage 70 for communicating the pressure chamber 20 with the outside atmosphere, and the water entering the pressure chamber 20 can be discharged through the second pressure relief passage 70, so as to further reduce the acting force of the pressure chamber 20 on the water stop unit 40.
The specific working process of this embodiment is as follows:
When the pressure of the water outlet channel 10 is greater than the pressure of the pressure chamber 20 (i.e. the elastic force of the elastic member 60), the water stopping unit 40 communicates the water outlet channel 10 and the first pressure relief channel 30 under the pressure action of the water outlet channel 10, the blocking unit 50 blocks the water of the water outlet channel 10 from flowing to the pressure chamber 20, and the blocking unit 50 blocks the water of the water outlet channel 10 from flowing to the pressure chamber 20, so that the acting force of the pressure chamber 20 on the water stopping unit 40 is reduced, the pressure relief capability of the valve body 1 is improved, and the safety is better.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (8)
1. the pressure relief structure of the valve body is characterized by further comprising a blocking unit, and when the water stop unit is communicated with the water outlet channel and the first pressure relief channel, the blocking unit blocks water flowing from the water outlet channel to the pressure cavity.
2. The pressure relief structure of a valve body according to claim 1, wherein a pressure relief cavity is formed on the valve body, the water outlet channel is communicated with the pressure relief cavity through a pressure relief opening, the first pressure relief channel is communicated with the pressure relief cavity, and the water stop unit is movably disposed and opens or closes the pressure relief opening.
3. The pressure relief structure of a valve body according to claim 2, wherein the water stop unit is movably attached to the inside of the pressure relief cavity, the pressure cavity is formed between one side of the water stop unit, which is away from the pressure relief opening, and the inner wall of the pressure relief cavity, a gap is formed between the water stop unit and the inner wall of the pressure relief cavity, and the blocking unit is arranged between the water stop unit and the inner wall of the pressure relief cavity to eliminate or reduce the gap.
4. The pressure relief structure of a valve body according to claim 1, wherein said blocking unit is disposed on said water stop unit.
5. The pressure relief structure of a valve body according to claim 1, wherein said blocking unit is a sealing ring or a water blocking rib.
6. The pressure relief structure of a valve body according to claim 1, wherein an elastic member is disposed in said pressure chamber, and an elastic force of said elastic member forms a pressure of said pressure chamber.
7. the pressure relief structure of a valve body according to claim 6, wherein the pressure of the water outlet channel overcomes the elastic force of the elastic member to drive the water stop unit to communicate the water outlet channel and the first pressure relief channel.
8. The pressure relief structure of a valve body according to claim 1, wherein said pressure chamber is provided with a second pressure relief passage communicating said pressure chamber with the outside atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222204.6U CN209781843U (en) | 2018-12-27 | 2018-12-27 | Pressure relief structure of valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822222204.6U CN209781843U (en) | 2018-12-27 | 2018-12-27 | Pressure relief structure of valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781843U true CN209781843U (en) | 2019-12-13 |
Family
ID=68790973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822222204.6U Active CN209781843U (en) | 2018-12-27 | 2018-12-27 | Pressure relief structure of valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781843U (en) |
-
2018
- 2018-12-27 CN CN201822222204.6U patent/CN209781843U/en active Active
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