CN2814058Y - Oil return one-way valve - Google Patents
Oil return one-way valve Download PDFInfo
- Publication number
- CN2814058Y CN2814058Y CN 200520044416 CN200520044416U CN2814058Y CN 2814058 Y CN2814058 Y CN 2814058Y CN 200520044416 CN200520044416 CN 200520044416 CN 200520044416 U CN200520044416 U CN 200520044416U CN 2814058 Y CN2814058 Y CN 2814058Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- visor
- drainback passage
- valve
- passage
- 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
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of return check valve, comprise valve body, be provided with oil inlet passage and drainback passage in the described valve body, it is characterized in that, also comprise transparent visor, described visor is arranged on the valve body outside and is connected with valve seal, be provided with asphalt channel between described visor and the valve body, described asphalt channel communicates with oil inlet passage and drainback passage respectively, is provided with interior plug, spring and steel ball in the drainback passage of valve body successively, described steel ball is resisted against the drainback passage end, is provided with spill port beyond the Great Wall in described.The utility model is with oil return control, unidirectional and inspect function such as oil return situation and be integrated in one, and is more superior than traditional single return tube or one-way valve performance, installs more conveniently, and structure is simpler.
Description
Technical field
The utility model relates to a kind of return check valve, belongs to the screw air compressor field, specifically a kind of return check valve that is used for oil-gas separating filter element device in the screw air compressor unit.
Background technique
Often adopt single return tube and add independently liquid-sighting glass in the tradition screw air compressor structure, no single effect, in the time of can't avoiding unit to stop, lubricant oil in the compression chamber does not flow backward in the oil separator filter core, the oil return load increases when causing unit to move once more, the exhaust oil content raises, and air feed quality descends.As then number of spare parts, piece-ups, sealing surface increase easily leakage to install one-way valve additional.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of simple in structure, easy to make, can prevent that lubricant oil flows backward to the interior return check valve of oil separator filter core in the compression chamber, to overcome the above-mentioned defective that prior art exists.
The technological scheme of the utility model technical solution problem is as follows:
A kind of return check valve, comprise valve body, be provided with oil inlet passage and drainback passage in the described valve body, it is characterized in that, also comprise transparent visor, described visor is arranged on the valve body outside and is connected with valve seal, be provided with asphalt channel between described visor and the valve body, described asphalt channel communicates with oil inlet passage and drainback passage respectively, is provided with interior plug, spring and steel ball in the drainback passage of valve body successively, described steel ball is resisted against the drainback passage end, is provided with spill port beyond the Great Wall in described.
Described valve body also is provided with snap ring outward, deviates to prevent visor.
Described valve outer wall is provided with groove, the described asphalt channel of the common formation of the groove on described visor inwall and the valve outer wall.
Be provided with the O RunddichtringO between described visor and the valve body.
What communicate with described drainback passage end is the taper type passage.
Plug is hexagonal socket head plug in described.
Described return check valve oil revolving end links to each other with compression chamber, and oil inlet end links to each other with the oil separator filter core.
By above disclosed technological scheme as can be known, adopt the unidirectional scavenger valve of the utility model can guarantee the lubricant oil that accumulate oil separator filter core bottom all is withdrawn into the compressor air suction mouth, and the latus rectum size of control return line, avoid excessive releasing of pressurized gas and influence the unit air demand; Simultaneously, avoid that the lubricant oil in the compressor oppositely flow in the oil separator filter core when unit stops.Thereby guarantee the normal operation of unit energy high efficiency, low oil consumption.By the transparent liquid joint of looking, be convenient to the oil return situation that the user observes filter core at any time in addition, judge whether the running state of unit is normal; When one-way function guaranteed that unit stops, the lubricant oil of blocking fully in the compressor oppositely flow in the oil separator filter core.This return check valve is with oil return control, unidirectional and inspect function such as oil return situation and be integrated in one, and is more superior than traditional single return tube or one-way valve performance, installs more conveniently, and structure is simpler.
Description of drawings
Fig. 1 is the unidirectional scavenger valve sectional structure of a utility model schematic representation;
Fig. 2 is Fig. 1 scavenger valve side view.
Embodiment
Further specify the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, a kind of return check valve of the utility model, comprise valve body 1, be provided with oil inlet passage 101 and drainback passage 103 in the described valve body 1, also comprise transparent visor 6, visor 6 is arranged on the valve body outside and is connected with valve seal, be provided with asphalt channel 8 between visor and the valve body, described asphalt channel communicates with oil inlet passage 101 and drainback passage 103 respectively, plug 2, spring 3 and steel ball 4 in being provided with successively in the drainback passage of valve body, described steel ball 4 is resisted against the drainback passage end, and described interior plug 2 is provided with spill port 201.
Described valve outer wall is provided with groove 102, described visor 6 inwalls and the described asphalt channel 8 of groove 102 common formations, and valve body also is provided with snap ring 7 outward.O RunddichtringO 5 between visor 6 and the valve body 1.What communicate with described drainback passage end is the taper type passage.
Claims (6)
1. return check valve, comprise valve body, be provided with oil inlet passage and drainback passage in the described valve body, it is characterized in that, also comprise transparent visor, described visor is arranged on the valve body outside and is connected with valve seal, be provided with asphalt channel between described visor and the valve body, described asphalt channel communicates with oil inlet passage and drainback passage respectively, is provided with interior plug, spring and steel ball in the drainback passage of valve body successively, described steel ball is resisted against the drainback passage end, is provided with spill port beyond the Great Wall in described.
2. return check valve according to claim 1 is characterized in that, described valve body also is provided with snap ring outward.
3. return check valve according to claim 1 is characterized in that described valve outer wall is provided with groove, the described asphalt channel of the common formation of described visor inwall and groove.
4. return check valve according to claim 1 is characterized in that, is provided with the O RunddichtringO between described visor and the valve body.
5. return check valve according to claim 1 is characterized in that, what communicate with described drainback passage end is the taper type passage.
6. return check valve according to claim 1 is characterized in that, described interior plug is hexagonal socket head plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044416 CN2814058Y (en) | 2005-08-22 | 2005-08-22 | Oil return one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044416 CN2814058Y (en) | 2005-08-22 | 2005-08-22 | Oil return one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814058Y true CN2814058Y (en) | 2006-09-06 |
Family
ID=36949146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044416 Expired - Fee Related CN2814058Y (en) | 2005-08-22 | 2005-08-22 | Oil return one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814058Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956846A (en) * | 2010-09-11 | 2011-01-26 | 马新焕 | Stop valve |
| CN102094787A (en) * | 2010-12-16 | 2011-06-15 | 张家港市江南利玛特设备制造有限公司 | Oil return valve for marine air condition compressor |
| CN103629365A (en) * | 2012-08-25 | 2014-03-12 | 大连兴元深冷阀门有限公司 | Multifunctional oil return valve |
| CN108626296A (en) * | 2018-04-02 | 2018-10-09 | 徐州徐工液压件有限公司 | A kind of one-way damper valve on hydro-pneumatic suspension system |
-
2005
- 2005-08-22 CN CN 200520044416 patent/CN2814058Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956846A (en) * | 2010-09-11 | 2011-01-26 | 马新焕 | Stop valve |
| CN101956846B (en) * | 2010-09-11 | 2012-09-05 | 马新焕 | Stop valve |
| CN102094787A (en) * | 2010-12-16 | 2011-06-15 | 张家港市江南利玛特设备制造有限公司 | Oil return valve for marine air condition compressor |
| CN103629365A (en) * | 2012-08-25 | 2014-03-12 | 大连兴元深冷阀门有限公司 | Multifunctional oil return valve |
| CN108626296A (en) * | 2018-04-02 | 2018-10-09 | 徐州徐工液压件有限公司 | A kind of one-way damper valve on hydro-pneumatic suspension system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Zhaoyun Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060906 Termination date: 20100822 |