CN214662281U - One-way valve structure - Google Patents
One-way valve structure Download PDFInfo
- Publication number
- CN214662281U CN214662281U CN202121016921.9U CN202121016921U CN214662281U CN 214662281 U CN214662281 U CN 214662281U CN 202121016921 U CN202121016921 U CN 202121016921U CN 214662281 U CN214662281 U CN 214662281U
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- China
- Prior art keywords
- water
- pressure
- valve
- valve seat
- sensing diaphragm
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 136
- 238000007789 sealing Methods 0.000 claims description 23
- 239000012530 fluid Substances 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a check valve structure, including disk seat, valve gap, be equipped with water inlet and delivery port on the disk seat, be equipped with the pressure chamber that comes that constitutes by the disk seat body and switch on with the water inlet in the disk seat, enclose between disk seat and the valve gap and have a counter-pressure chamber, come to be equipped with between pressure chamber and the counter-pressure chamber and be used for sealed or switch on the one-way subassembly in water route between water inlet and the delivery port, one-way subassembly includes the pressure sensing diaphragm and helps a spring, and pressure sensing diaphragm circumference is sealed to be compressed tightly between valve gap and disk seat, helps a spring one end to act on the valve gap inner wall, and the other end acts on the pressure sensing diaphragm, be equipped with the return water runner that switches on counter-pressure chamber and delivery port on the disk seat body. The utility model discloses it is easier to realize that the check valve opens the valve, can seal water when stopping to come again more reliably.
Description
Technical Field
The utility model relates to a fluid transportation technical field, concretely relates to check valve structure.
Background
The check valve is commonly called as a check valve, is also called as a check valve or a check valve and is used for preventing the fluid from reversely flowing in a fluid transportation system. The one-way valve is applied to a booster pump more frequently, and the booster pump is important equipment for doing work on fluid in the fluid conveying process and is widely applied to the existing industrial production and human life.
However, the existing check valve used in the booster pump has certain pressure for water inflow interception and backwater, so that the backwater prevention function of the check valve is not tight in sealing, backwater can not be completely prevented, and meanwhile, the pressure difference required by water inflow to open the check valve is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a check valve structure for improve the stagnant water performance of check valve, avoid sealed not tight make the return water flow in into among the water route of intaking, it is littleer to intake simultaneously and open the required pressure differential of check valve.
In order to solve the technical problem, the utility model discloses a following scheme:
the utility model provides a check valve structure, includes disk seat, valve gap, is equipped with water inlet and delivery port on the disk seat, is equipped with the pressure chamber that comes that constitutes by the disk seat body and switch on with the water inlet in the disk seat, encloses between disk seat and the valve gap to have the counter-pressure chamber, comes to be equipped with between pressure chamber and the counter-pressure chamber to be used for sealed or switch on the one-way subassembly in water route between water inlet and the delivery port, one-way subassembly includes pressure sensing diaphragm and helps and seals the spring, and pressure sensing diaphragm circumference is sealed to compress tightly between valve gap and disk seat, helps and seals spring one end and act on the valve gap inner wall, and the other end acts on pressure sensing diaphragm, be equipped with the return water runner that switches on counter-pressure chamber and delivery port on the disk seat body. The utility model discloses a water inlet pressure only needs to overcome and helps the elasticity of sealing the spring and the backpressure in anti-water pressure chamber, it just can push open the pressure sensing diaphragm to intake, make the water route between water inlet and the delivery port switch on, realize switching on in whole water route, because delivery port department has an ascending pressure to the pressure sensing diaphragm equally, the required pressure differential of water inlet push open pressure sensing diaphragm just so littleer, it is just easier just to enter water to open the check valve, after the throttle of intaking, the return water is got into anti-water pressure chamber by the return water runner, form certain anti-water pressure and downward pressure sensing diaphragm to the pressure sensing diaphragm, help the further downward pressure sensing diaphragm of the decurrent spring force of sealing spring simultaneously, the water route is just more tight between the sealed water inlet of pressure sensing diaphragm and the delivery port like this, make whole non return device water function more excellent, the return water can not flow backwards in the water route.
Preferably, a water sealing opening formed by the valve seat body is arranged on the water path communicated with the water inlet and the water outlet, and the water sealing opening is sealed by the pressure sensing diaphragm or the water path between the water inlet and the water outlet is communicated under the combined action of the elasticity of the sealing-assisting spring, the water pressure in the counter-water pressure cavity and the water pressure in the incoming water pressure cavity.
Preferably, a water outlet channel formed by the valve seat body is arranged on the water path communicated between the water sealing port and the water outlet.
The utility model discloses beneficial effect who has:
1. the utility model provides the high stagnant water performance of check valve for among the difficult water route of getting into of return water stream, it is littleer to advance simultaneously and open the required pressure differential of check valve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 01 water inlet, 02-incoming water pressure cavity, 03-valve cover, 04-pressure sensing diaphragm, 05-sealing-assisting spring, 06-reverse water pressure cavity, 07-backwater flow channel, 08-water outlet, 09-valve seat, 10-water outlet flow channel and 11-water sealing opening.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1, a check valve structure includes a valve seat 09 and a valve cover 03, a water inlet 01 and a water outlet 08 are disposed on the valve seat 09, an incoming water pressure chamber 02 formed by a valve seat 09 body and communicated with the water inlet 01 is disposed in the valve seat 09, a back water pressure chamber 06 is defined between the valve seat 09 and the valve cover 03, a check assembly for sealing or communicating a water path between the water inlet 01 and the water outlet 08 is disposed between the incoming water pressure chamber 02 and the back water pressure chamber 06, the check assembly includes a pressure sensing diaphragm 04 and a sealing-assisting spring 5, the pressure sensing diaphragm 04 is circumferentially sealed and compressed between the valve cover 03 and the valve seat 09, one end of the sealing-assisting spring 5 acts on an inner wall of the valve cover 03, and the other end acts on the pressure sensing diaphragm 04, a water sealing port 11 formed by the valve seat 09 body is disposed on the water path between the water inlet 01 and the water outlet 08, the water sealing port 11 is sealed by the pressure sensing diaphragm 04 under the combined action of the elasticity of the sealing-assisting spring 5, the water pressure in the back water pressure chamber 06, and the water pressure chamber 02 A water path between the water outlets 08. And a water outlet channel 10 formed by a valve seat 09 body is arranged on a water path communicated between the water sealing port 11 and the water outlet 08. And a water return flow channel 07 for communicating the reverse water pressure cavity 06 with the water outlet 08 is arranged on the valve seat 09 body. The pressure of the water pressure cavity 02 of the utility model only needs to overcome the elasticity of the sealing-aid spring 5 and the reverse pressure of the reverse water pressure cavity 06, the pressure-sensitive diaphragm 04 can be pushed open by water inflow, so that the water path between the water inlet 01 and the water outlet 08 is conducted, namely the pressure-sensitive diaphragm 04 releases the sealing of the water sealing port 11, and the whole water path is conducted, because the water sealing port 11 has an upward pressure to the pressure-sensitive diaphragm 04, the pressure difference required by the water inlet 01 pushing open the pressure-sensitive diaphragm 04 is smaller, after water inflow throttling, backwater enters the reverse water pressure cavity 06 from the backwater flow channel 07, a certain reverse water pressure is formed to the pressure-sensitive diaphragm 04 and the water sealing port 11 is sealed by the pressure-sensitive diaphragm 04, meanwhile, the downward spring force of the sealing-aid spring 5 further presses the water sealing port 11 by the pressure-sensitive diaphragm 04, so that the water sealing port 11 of the pressure-sensitive diaphragm 04 is tighter, the pressure area at the added water sealing port 11 is obviously smaller than the pressure area of the reverse water pressure cavity 06, therefore, the pressure at the water sealing port 11 cannot overcome the pressure of the counter-pressure cavity 06 to jack the pressure sensing diaphragm 04, so that the water return preventing function of the whole device is better, the return water cannot flow back to the water inlet waterway, and the water inlet pollution is not easily caused.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and the technical essence of the present invention is that within the spirit and principle of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments are all within the protection scope of the technical solution of the present invention.
Claims (3)
1. A one-way valve structure comprises a valve seat (09) and a valve cover (03), wherein the valve seat (09) is provided with a water inlet (01) and a water outlet (08), it is characterized in that a water pressure cavity (02) which is formed by a valve seat (09) body and is communicated with a water inlet (01) is arranged in the valve seat (09), a counter-water pressure cavity (06) is enclosed between the valve seat (09) and a valve cover (03), a one-way component for sealing or communicating a water path between the water inlet (01) and a water outlet (08) is arranged between the water pressure cavity (02) and the counter-water pressure cavity (06), the one-way component comprises a pressure sensing diaphragm (04) and an auxiliary seal spring (05), the pressure sensing diaphragm (04) is circumferentially sealed and tightly pressed between the valve cover (03) and the valve seat (09), one end of the auxiliary seal spring (05) acts on the inner wall of the valve cover (03), the other end acts on the pressure sensing diaphragm (04), and a water return flow channel (07) for communicating the reverse water pressure cavity (06) with the water outlet (08) is arranged on the valve seat (09) body.
2. The one-way valve structure according to claim 1, wherein a water sealing port (11) formed by a valve seat (09) body is arranged on a water path for communicating the water inlet (01) with the water outlet (08), and the water sealing port (11) is sealed by a pressure sensing diaphragm (04) or communicates the water path between the water inlet (01) and the water outlet (08) under the combined action of the elasticity of a sealing-assisting spring (05), the water pressure in the counter-water pressure cavity (06) and the water pressure in the water pressure inlet cavity (02).
3. The structure of the check valve as claimed in claim 2, wherein a water outlet channel (10) formed by a valve seat (09) body is arranged on a water path communicated between the water sealing port (11) and the water outlet (08).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121016921.9U CN214662281U (en) | 2021-05-13 | 2021-05-13 | One-way valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121016921.9U CN214662281U (en) | 2021-05-13 | 2021-05-13 | One-way valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214662281U true CN214662281U (en) | 2021-11-09 |
Family
ID=78487907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121016921.9U Active CN214662281U (en) | 2021-05-13 | 2021-05-13 | One-way valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214662281U (en) |
-
2021
- 2021-05-13 CN CN202121016921.9U patent/CN214662281U/en active Active
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