CN203718057U - Special oil return check valve for air compressor - Google Patents
Special oil return check valve for air compressor Download PDFInfo
- Publication number
- CN203718057U CN203718057U CN201420083954.9U CN201420083954U CN203718057U CN 203718057 U CN203718057 U CN 203718057U CN 201420083954 U CN201420083954 U CN 201420083954U CN 203718057 U CN203718057 U CN 203718057U
- Authority
- CN
- China
- Prior art keywords
- valve
- air compressor
- adjusting screw
- valve body
- hole
- 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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Abstract
The utility model discloses a special oil return check valve for an air compressor. The special oil return check valve for the air compressor comprises a valve body of which the cross section adopts an external hexagonal structure, wherein a valve cavity and an oil inlet are formed in the valve body; an O-shaped sealing ring is installed at the bottom of the valve cavity; a ball presses against the upper end of the O-shaped sealing ring; a spring is arranged at the upper end of the ball; a regulating screw is connected with the upper end of the spring; a spanner hole is arranged at the upper end of the regulating screw; a vertical through hole is formed in the regulating screw; an annular bulge is arranged on the periphery of the through hole in the upper end of the regulating screw; an oil conveying pipe sleeves the annular bulge; a dustproof cover is arranged on the valve body; an external hexagonal spanner is clamped on the dustproof cover. The exterior of the valve body directly adopts the hexagonal structure, so that the valve body is convenient to manufacture and detach; the oil conveying pipe sleeves the annular bulge, so that oil does not splash onto the upper end of the regulating screw; the spanner for detaching and regulating the regulating screw is clamped on the dustproof cover, so that a user can detach and regulate the regulating screw conveniently; therefore, the special oil return check valve for the air compressor is high in practicality.
Description
Technical field
The utility model belongs to air compressor accessory technical field, particularly the special return check valve of a kind of air compressor.
Background technique
Return check valve complex structure on existing air compressor, production and processing inconvenience, manufacture cost is high, and the adjusting screw of return check valve needs spanner or screw-driver to regulate, and existing return check valve is not equipped with special screw-driver or spanner, inconvenience when needing interim dismounting.
Model utility content
In order to overcome the deficiency of above-mentioned technology, the purpose of this utility model is to provide the special return check valve of a kind of novel air compressor.
The technological scheme that the utility model is taked for its technical problem of solution is:
The special return check valve of a kind of air compressor, comprise that cross section is the valve body of outer-hexagonal structure, in valve body, be provided with valve pocket and oil inlet hole, between the bottom of valve pocket and oil inlet hole, it is ledge structure, bottom at valve pocket is provided with O-ring seals, contact a spheroid in O-ring seals upper end, be provided with spring in spheroid upper end, the upper end of described spring is connected with an adjusting screw, described adjusting screw and described valve interior wall screw-thread fit, be provided with the driving hole of interior hexagonal structure at the center, upper end of adjusting screw, in described adjusting screw, be provided with the through hole of a vertical direction, around the through hole that is positioned at described adjusting screw upper end, be provided with one with the annular protrusion of adjusting screw integral structure, annular protrusion outer cover is provided with transport pipe.
The pawl structure that is anticreep in the outside of described annular protrusion.
Also comprise a dust cover, described dust cover and described valve body screw are affixed, are provided with a through hole passing for transport pipe on dust cover, are provided with a plastics fixture block in the upper end of dust cover, are connected with an inner hexagon spanner on fixture block.
The beneficial effects of the utility model: the utlity model has simple in structure, valve body is outside directly adopts processing and the dismounting that outer-hexagonal structure makes valve body all to facilitate, on annular protrusion, being socketed transport pipe makes oil can not trickle down the upper end in adjusting screw, clamping on dust cover is greatly facilitated to dismounting and the adjusting of user to adjusting screw for the spanner of dismantling adjusting screw, practical.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make the utility model be convenient to understand, below in conjunction with accompanying drawing, the utility model is described in further detail.
The special return check valve of a kind of air compressor as shown in Figure 1, comprise that cross section is the valve body 1 of outer-hexagonal structure, in valve body 1, be provided with valve pocket 2 and oil inlet hole 3, between the bottom of valve pocket 2 and oil inlet hole 3, it is ledge structure, in the bottom of valve pocket 2, O-ring seals 4 is installed, contact a spheroid 5 in O-ring seals 4 upper ends, be provided with spring 6 in spheroid 5 upper ends, the upper end of described spring 6 is connected with an adjusting screw 7, described adjusting screw 7 coordinates with described valve body 1 inner thread, be provided with the driving hole 8 of interior hexagonal structure at the center, upper end of adjusting screw 7, in described adjusting screw 7, be provided with the through hole 9 of a vertical direction, around the through hole 9 that is positioned at described adjusting screw 7 upper ends, be provided with one with the annular protrusion 10 of adjusting screw 7 integral structures, annular protrusion 10 outer cover are provided with transport pipe 11.
The pawl structure that to it should be noted that in the outside of described annular protrusion 10 be anticreep.
Also comprise a dust cover 12, described dust cover 12 is affixed with described valve body 1 screw, is provided with a through hole passing for transport pipe 11 on dust cover 12, is provided with a plastics fixture block 13 in the upper end of dust cover 12, is connected with an inner hexagon spanner 14 on fixture block 13.
The utlity model has simple in structure, valve body is outside directly adopts processing and the dismounting that outer-hexagonal structure makes valve body all to facilitate, on annular protrusion, being socketed transport pipe makes oil can not trickle down the upper end in adjusting screw, clamping on dust cover is greatly facilitated to dismounting and the adjusting of user to adjusting screw for the spanner of dismantling adjusting screw, practical.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope, those ordinary skill in the art's simple change and replacement are all within protection domain of the present utility model.
Claims (3)
1. the special return check valve of air compressor, it is characterized in that: comprise that cross section is the valve body of outer-hexagonal structure, in valve body, be provided with valve pocket and oil inlet hole, between the bottom of valve pocket and oil inlet hole, it is ledge structure, bottom at valve pocket is provided with O-ring seals, contact a spheroid in O-ring seals upper end, be provided with spring in spheroid upper end, the upper end of described spring is connected with an adjusting screw, described adjusting screw and described valve interior wall screw-thread fit, be provided with the driving hole of interior hexagonal structure at the center, upper end of adjusting screw, in described adjusting screw, be provided with the through hole of a vertical direction, around the through hole that is positioned at described adjusting screw upper end, be provided with one with the annular protrusion of adjusting screw integral structure, annular protrusion outer cover is provided with transport pipe.
2. the special return check valve of a kind of air compressor according to claim 1, is characterized in that: the pawl structure that is provided with anticreep in the outside of described annular protrusion.
3. the special return check valve of a kind of air compressor according to claim 2, it is characterized in that: also comprise a dust cover, described dust cover and described valve body screw are affixed, on dust cover, be provided with a through hole passing for transport pipe, be provided with a plastics fixture block in the upper end of dust cover, on fixture block, be connected with an inner hexagon spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083954.9U CN203718057U (en) | 2014-02-25 | 2014-02-25 | Special oil return check valve for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083954.9U CN203718057U (en) | 2014-02-25 | 2014-02-25 | Special oil return check valve for air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203718057U true CN203718057U (en) | 2014-07-16 |
Family
ID=51157208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083954.9U Expired - Fee Related CN203718057U (en) | 2014-02-25 | 2014-02-25 | Special oil return check valve for air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203718057U (en) |
-
2014
- 2014-02-25 CN CN201420083954.9U patent/CN203718057U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |