CN205806582U - Can the check-valves of pressure release - Google Patents
Can the check-valves of pressure release Download PDFInfo
- Publication number
- CN205806582U CN205806582U CN201620635454.0U CN201620635454U CN205806582U CN 205806582 U CN205806582 U CN 205806582U CN 201620635454 U CN201620635454 U CN 201620635454U CN 205806582 U CN205806582 U CN 205806582U
- Authority
- CN
- China
- Prior art keywords
- pressure release
- valve body
- inlet side
- pressure
- spool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 210000002445 nipple Anatomy 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 241000132179 Eurotium medium Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
This utility model relate to a kind of can the check-valves of pressure release, including valve body and spool, be wherein provided with end face seal pad on the valve seat of valve body inlet side, the plug of spool is supported by stage clip and withstands on end face seal pad；It is characterized in that: valve body inlet side and valve body go out end and have pressure release passage, this pressure release passage has pressure relief opening or relief hole in valve body inlet side, and described relief hole is by the pressure release set closure under high pressure can elastic opened.When rear end pressure increases to when exceeding safety value, medium is overflowed from the relief hole being positioned at spool inlet side by the elastic packing that pressure release passage and relief hole overcome pressure release to overlap and reduces and end pressure, to ensure pipe network, water meter and parts do not damage because pressure exceedes safety value, after pressure is less than safety value, between pressure release set and relief hole, reply again sealing state.Its safety value size can mate solution by relief hole pore size with pressure release set thickness and coefficient of elasticity.This utility model simple in construction, low cost, there is good result in practice.
Description
Technical field
This utility model relates to check-valves, a kind of can the check-valves of pressure release.
Technical background
Check-valves is also referred to as check valve, have reverse check function, i.e. medium can not reverse flow, its pressure increment cannot be led to
Cross check-valves forward end drain charge；But under some specific condition, when when conduit volume is constant, variations in temperature increases or water hammer effect
Ying Douhui allows the pressure of check-valves rear end suddenly increase, and makes the pipe network of check-valves rear end, water meter and parts because bearing incessantly
High pressure and cause damage, common way be in pipeline design install overflow valve or air relief valve additional, its cost is the highest.
Summary of the invention
For deficiencies of the prior art, the purpose of this utility model be to provide a kind of can the check-valves of pressure release.
Employed technical scheme comprise that such for achieving the above object, a kind of can the check-valves of pressure release, including valve body
And spool, wherein it being provided with end face seal pad on the valve seat of valve body inlet side, the plug of spool is withstood on end face seal pad by stage clip；
It is characterized in that: valve body inlet side and valve body go out end and have pressure release passage, and this pressure release passage has relief hole in valve body inlet side, described
Relief hole by can under high pressure elastic open pressure release set closure.
Further, described pressure release passage is the passage axially across spool, and its inlet side goes out end with valve body and connects, and it goes out end
Valve body inlet side is extended to by spool plug.
This utility model, on original one-way non-return valve arrangement, leads to owing to increasing to connect valve body inlet side and go out the pressure release held
Road and relief hole, and close, under normal circumstances as other check-valves, when medium forward flow with the most high voltage bearing pressure release set
Time promote spool to open check-valves and flow to out end, when medium reverse flow, under the action of the spring, the spool conical surface and end face seal
Pad cooperation blocks, and uses end medium and cannot flow into inlet side, but when rear end pressure increases to when exceeding safety value, and medium passes through
The elastic packing that pressure release passage and relief hole overcome pressure release to overlap overflows from the relief hole being positioned at spool inlet side and reduces and end pressure,
To ensure that pipe network, water meter and parts do not damage because pressure exceedes safety value, after pressure is less than safety value, pressure release is overlapped and lets out
Pressure replys again sealing state between hole.Its safety value size can be by relief hole pore size and pressure release set thickness and elastic system
Number mates solution.This utility model simple in construction, low cost, there is good result in practice.
Accompanying drawing explanation
Accompanying drawing is structural profile schematic diagram of the present utility model.
In accompanying drawing: 1-end face seal pad；2-centre pilot frame；3-pressure release set；4-plug；5-stage clip.
Detailed description of the invention
Embodiment by indefiniteness of the present utility model further illustrates, and sees accompanying drawing: in figure can pressure release only
Returning valve and include valve body and spool, be wherein provided with end face seal pad 1 on the valve seat of valve body inlet side, the plug 4 of spool is pushed up by stage clip 5
On end face seal pad 1；It is characterized in that: valve body inlet side and valve body go out end and have pressure release passage, and described pressure release passage is axial
Through the passage of spool, its inlet side goes out end with valve body and connects, and it goes out end and is extended to valve body inlet side by spool plug, and pressure release passage exists
Valve body inlet side has relief hole, and described relief hole is by the pressure release set closure under high pressure can elastic opened.
Further, described relief hole and axially vertical setting, described pressure release set 3 is rubber sleeve.
In embodiment, the plug 4 of described spool has inner cone, coincide with the conical surface of end face seal pad 3；Described spool
Valve stem part is through the centre bore of the centre pilot frame 2 with water hole, and centre pilot frame is arranged on valve body and goes out on the boss of end
Or be processed as one with described boss, stage clip 5 is between spool plug and leading truck；The inlet side of described valve body or in-out end are even
Union nipple.
Another embodiment of the present utility model is, with a relief tube, its two ends is separately positioned on the inlet side of valve body
With go out end, wherein relief tube has relief hole in the one end being positioned at valve body inlet side, and described relief hole is by under high pressure can be elastic
The pressure release set closure opened.Described pressure release set is rubber sleeve.
It is last it should be noted that above example is merely to illustrate the technical solution of the utility model and indefiniteness skill
Art scheme.It will be understood by those within the art that, those the technical solution of the utility model is modified or etc.
With replacing without deviating from the technical program objective and the content of scope, all should contain at right of the present utility model
In.
Claims (5)
1. can the check-valves of pressure release, including valve body and spool, be wherein provided with end face seal pad on the valve seat of valve body inlet side
(1), the plug of spool is withstood on end face seal pad (1) by stage clip (5)；It is characterized in that: valve body inlet side and valve body go out end to be had
Pressure release passage, this pressure release passage has relief hole in valve body inlet side, and described relief hole is by letting out of under high pressure can elastic opening
Gland blocks.
The most according to claim 1 a kind of can the check-valves of pressure release, it is characterised in that described pressure release passage be axially across
The passage of spool, its inlet side goes out end with valve body and connects, and it goes out end and is extended to valve body inlet side by spool plug.
The most according to claim 1 and 2 a kind of can the check-valves of pressure release, it is characterised in that the plug (4) of described spool
There is inner cone, coincide with the conical surface of end face seal pad (3).
The most according to claim 1 a kind of can the check-valves of pressure release, it is characterised in that the valve stem part of described spool passes
There is the centre bore of the centre pilot frame (2) of water hole, centre pilot frame be arranged on valve body go out end boss on or convex with described
Platform is processed as one, and stage clip (5) is between spool plug and leading truck.
A kind of can the check-valves of pressure release, it is characterised in that: the inlet side of described valve body or in-out end are even
Union nipple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635454.0U CN205806582U (en) | 2016-06-24 | 2016-06-24 | Can the check-valves of pressure release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620635454.0U CN205806582U (en) | 2016-06-24 | 2016-06-24 | Can the check-valves of pressure release |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806582U true CN205806582U (en) | 2016-12-14 |
Family
ID=57505572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620635454.0U Active CN205806582U (en) | 2016-06-24 | 2016-06-24 | Can the check-valves of pressure release |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799040A (en) * | 2018-09-03 | 2018-11-13 | 三汽车制造有限公司 | A kind of pumping machine |
-
2016
- 2016-06-24 CN CN201620635454.0U patent/CN205806582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799040A (en) * | 2018-09-03 | 2018-11-13 | 三汽车制造有限公司 | A kind of pumping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170527 Address after: 400050 Chongqing Jiulongpo Shiqiaopu Yuzhou Road No. 33 25-13-1 Patentee after: Chongqing Zhongtian Electromechanical Technology Co., Ltd. Address before: 400015 unit 71, Minle village, Yuzhong District, Chongqing, 4-1 Patentee before: Ou Jian |