CN201339727Y - Exhaust check valve - Google Patents
Exhaust check valve Download PDFInfo
- Publication number
- CN201339727Y CN201339727Y CNU2008201581257U CN200820158125U CN201339727Y CN 201339727 Y CN201339727 Y CN 201339727Y CN U2008201581257 U CNU2008201581257 U CN U2008201581257U CN 200820158125 U CN200820158125 U CN 200820158125U CN 201339727 Y CN201339727 Y CN 201339727Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- casing
- valve casing
- chamber
- 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.)
- Expired - Fee Related
Links
- 238000013022 venting Methods 0.000 claims description 19
- 239000004809 Teflon Substances 0.000 claims description 9
- 229920006362 Teflon® Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004308 accommodation Effects 0.000 abstract 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Images
Landscapes
- Check Valves (AREA)
- Compressor (AREA)
Abstract
The utility model discloses an exhaust check valve, comprising a valve body, a valve body orifice, a valve casing, a flange structure, a sealing ring, a valve and a back spring, wherein the valve body orifice is arranged on the valve body; the valve casing is connected with the valve body; the top of the valve casing is provided with the flange structure; the lower part of the flange structure of the valve casing is provided with the sealing ring; the valve is arranged in the valve body; and the back spring is arranged between the valve and the valve body. The valve body and the valve casing which are connected with each other are installed in an accommodation cavity of a compressor casing. The flange structure of the valve casing is contacted with the inner wall of the accommodation cavity. The valve body and the valve casing are fixedly connected. The sealing ring of the valve casing and the inner wall of the accommodation cavity are contacted and sealed. The accommodation cavity is provided with an exhaust channel. The exhaust check valve can reduce the number of parts, and at the same time can achieve good sealing effect.
Description
Technical field
The utility model relates to one-way valve, is particularly suitable for the venting check valve that capacity variable type compressor uses.
Background technique
When the pressure reduction of the inlet end of safety check and exhaust end overcame spring force, valve was opened, and gas is discharged; And when above-mentioned pressure reduction can't overcome spring force, valve cut out.Venting check valve is installed near the relief opening of capacity variable type compressor, can reduce exhaust gas pressure pulse, reduces noise.
Japan publication spy opens and has embodied the installation of a kind of safety check on compressor and the structure of sealing among the 2003-120835, as shown in Figure 1, venting check valve is installed on the compressor housing 90, venting check valve comprises valve body 1, valve casing 2, engage mutually between valve body and the valve casing, columniform valve 3 is housed in the valve body, is provided with Returnning spring 4 between valve and the valve body, position, position spring gives the thrust of a closing direction of valve.Valve casing has a flanged surface 2a towards an end of exhaust cavity 91, one jump ring 6 is stuck on the flanged surface, thereby safety check is taken in the chamber 92 being fixed on, form groove between flanged surface and the valve body, O type circle 5 is housed in the groove, make to form sealing between safety check and the compressor housing, prevent that the clearance leakage of refrigeration agent between safety check and compressor housing is to exhaust passage 93.When the refrigerant pressure in the exhaust cavity can overcome spring pressure, safety check was opened, and refrigeration agent enters valve pocket from safety check inlet G, and flows out to exhaust passage 93 by valve orifice 1e.
Because the installing space compactness of safety check, clamping element and Sealing all take up room, and increase installation step, so manufacture cost increases.
The model utility content
The utility model reaches the better seal effect when reducing number of spare parts.
According to embodiment of the present utility model, a kind of venting check valve is provided, comprising:
Valve body has the valve body aperture on the valve body;
Valve casing links to each other with valve body, and the top of valve casing has flange arrangement, and the flange arrangement below of valve casing has seal ring;
Valve is arranged in the valve body, is provided with Returnning spring between valve and the valve body;
Valve body that is connected and valve casing are installed in taking in the chamber of compressor housing, and the flange arrangement of valve casing contacts with the inwall of taking in the chamber, and valve body that is connected to a fixed and valve casing, the seal ring of valve casing contact with the inwall of taking in the chamber and seal;
Take in the chamber and be provided with the exhaust passage.
Wherein, the flange arrangement of valve casing comprises: be positioned at the plane in the outside, valve casing top, and the conical surface that shrinks to the inside from the plane in this outside; Take in top of chamber and have the type conical bench face; The flange arrangement of valve casing and the type conical bench face interference fit of taking in top of chamber.
The flange arrangement below of valve casing has groove, and seal ring is placed in this groove.
Seal ring is the Teflon material, and the outer side of seal ring protrudes in outside the described groove.
The inwall at valve body top is provided with depression, and the outer wall of valve casing bottom is provided with projection, and depression cooperates with projection, and valve body and valve casing are connected to each other.
Valve body is that resin material is made.
When compressor operating, because the check valve openings one side effect of being under pressure, it is pressed on takes in the chamber, and compressor operating produces heat, and temperature raises, and takes in the chamber and is heated and diminishes, the valve casing expanded by heating, therefore cooperation between the two adds closely very much, even without jump ring, safety check itself also and be not easy to come off.And if that compressor occurs is unusual according to strong vibration, both occur sliding or when leaking, because Teflon (PTFE) material has elasticity, just the Teflon ring can produce distortion by pressurized, the gap of taking between chamber and the valve casing are sealed.
Description of drawings
The above and other feature of the present utility model, character and advantage will become more obvious by the description below in conjunction with drawings and Examples, in the accompanying drawings, identical reference character is represented identical feature all the time, wherein:
Fig. 1 is that the venting check valve of prior art is installed in the sectional view in the compressor housing;
Fig. 2 is the sectional view of venting check valve of the present utility model;
Fig. 3 is that venting check valve of the present utility model is installed in the sectional view in the compressor housing.
Embodiment
With reference to figure 2, shown in Figure 3, venting check valve 10 of the present utility model comprises valve body 11, valve casing 12 and valve 13.Valve body 11 is a resin material, is provided with depression 11b on valve body 11 top inner wall.On the bottom outer wall of valve casing 12, be provided with projection 12b, cooperatively interact between depression 11b and the projection 12b, valve body 11 is connected with valve casing 12.Be provided with valve 13 in the valve body 11, between valve 13 and the valve body 11 Returnning spring 14 be set.Also has valve body aperture 11e on the valve body 11.
Under the state of valve 13 pressure at both sides equilibriums, Returnning spring 14 promotes valves and contacts with valve seat 12c on the valve casing 12, and valve 13 cuts out.Do the time spent when the spring force that valve 13 is subjected to exhaust pressure and overcomes Returnning spring 14, valve 13 is opened, and the mesopore 12d of valve casing 12 is discharged in the exhaust passage 23 through valve orifice 11e.
Venting check valve of the present utility model reaches the better seal effect when reducing number of spare parts.When compressor operating, because the check valve openings one side effect of being under pressure, it is pressed on takes in the chamber, and compressor operating produces heat, and temperature raises, and takes in the chamber and is heated and diminishes, the valve casing expanded by heating, therefore cooperation between the two adds closely very much, even without jump ring, safety check itself also and be not easy to come off.And if that compressor occurs is unusual according to strong vibration, both occur sliding or when leaking, because Teflon (PTFE) material has elasticity, just the Teflon ring can produce distortion by pressurized, the gap of taking between chamber and the valve casing are sealed.
The foregoing description provides to being familiar with the person in the art and realizes or use of the present utility model; those skilled in the art can be under the situation that does not break away from invention thought of the present utility model; the foregoing description is made various modifications or variation; thereby protection domain of the present utility model do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (6)
1. a venting check valve is characterized in that, comprising:
Valve body has the valve body aperture on the described valve body;
Valve casing links to each other with described valve body, and the top of described valve casing has flange arrangement, and the flange arrangement below of described valve casing has seal ring;
Valve is arranged in the valve body, is provided with Returnning spring between valve and the valve body;
Described valve body that is connected and valve casing are installed in taking in the chamber of compressor housing, and the flange arrangement of described valve casing contacts with the inwall of taking in the chamber, fixing described valve body that is connected and valve casing, and the seal ring of described valve casing contacts with the inwall of taking in the chamber and seals;
The described chamber of taking in is provided with the exhaust passage.
2. venting check valve as claimed in claim 1 is characterized in that,
The flange arrangement of described valve casing comprises: be positioned at the plane in the outside, valve casing top, and the conical surface that shrinks to the inside from the plane in this outside;
The described top of chamber of taking in has the type conical bench face;
The flange arrangement of described valve casing and the type conical bench face interference fit of taking in top of chamber.
3. venting check valve as claimed in claim 2 is characterized in that,
The flange arrangement below of described valve casing has groove, and described seal ring is placed in this groove.
4. venting check valve as claimed in claim 3 is characterized in that,
Described seal ring is the Teflon material, and the outer side of seal ring protrudes in outside the described groove.
5. venting check valve as claimed in claim 1 is characterized in that,
The inwall at described valve body top is provided with depression, and the outer wall of described valve casing bottom is provided with projection, and described depression cooperates with projection, and valve body and valve casing are connected to each other.
6. venting check valve as claimed in claim 1 is characterized in that,
Described valve body is that resin material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201581257U CN201339727Y (en) | 2008-12-29 | 2008-12-29 | Exhaust check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201581257U CN201339727Y (en) | 2008-12-29 | 2008-12-29 | Exhaust check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339727Y true CN201339727Y (en) | 2009-11-04 |
Family
ID=41235273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201581257U Expired - Fee Related CN201339727Y (en) | 2008-12-29 | 2008-12-29 | Exhaust check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339727Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691749A (en) * | 2017-03-31 | 2018-10-23 | 株式会社丰田自动织机 | Check-valves and compressor |
| CN109952437A (en) * | 2016-11-10 | 2019-06-28 | 三星电子株式会社 | Compressor |
-
2008
- 2008-12-29 CN CNU2008201581257U patent/CN201339727Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109952437A (en) * | 2016-11-10 | 2019-06-28 | 三星电子株式会社 | Compressor |
| CN108691749A (en) * | 2017-03-31 | 2018-10-23 | 株式会社丰田自动织机 | Check-valves and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100909454B1 (en) | On / off valve device for fluid | |
| TW200510661A (en) | Valve seal with pressure relief channels and expansion voids | |
| DE602005012493D1 (en) | Ellen | |
| JP2006172123A (en) | Pressure regulating valve | |
| CN215487715U (en) | Sealing structure of butterfly valve | |
| CN201339727Y (en) | Exhaust check valve | |
| CN108194673B (en) | Pressure safety protection device, cooking utensil and pressure reduction method of cooking utensil | |
| CN211789232U (en) | Battery explosion-proof valve | |
| JP2024001893A5 (en) | ||
| CN220397271U (en) | Gas valve for clip-type furnace | |
| CN210687149U (en) | High-temperature automatic cut-off type gas valve | |
| CN113074256B (en) | Electromagnetic valve | |
| CN115652365B (en) | Gas-liquid separation device and electrolyte hydrogen production device | |
| CN212454814U (en) | Pump body subassembly, air conditioner | |
| CN214789241U (en) | A pressure reducing valve and water purification system | |
| CN110332345A (en) | Motor waterproof breathing valve assembly mechanism | |
| CN104632625B (en) | Dual-level enthalpy adding compressor and air-conditioner | |
| KR102338790B1 (en) | Valve with Metal Seal for Improving Airtightness Efficiency | |
| CN211574378U (en) | Electromagnetic valve | |
| CN223695509U (en) | Thermos cup lid and thermos cup | |
| CN223529297U (en) | Pressure release valve and pressure cooker | |
| CN216479042U (en) | Inflatable spring type valve | |
| CN223344254U (en) | Fixed scroll of scroll compressor and scroll compressor | |
| JP2008014378A (en) | Valve seal structure | |
| CN217153086U (en) | Pneumatic diaphragm valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: Shanghai City 200025 Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20161229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |