CN211009005U - Sealing structure of cylinder sleeve and valve plate of oil-free air compression pump - Google Patents
Sealing structure of cylinder sleeve and valve plate of oil-free air compression pump Download PDFInfo
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- CN211009005U CN211009005U CN201921624242.2U CN201921624242U CN211009005U CN 211009005 U CN211009005 U CN 211009005U CN 201921624242 U CN201921624242 U CN 201921624242U CN 211009005 U CN211009005 U CN 211009005U
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- compression pump
- air compression
- valve cover
- oil
- cylinder sleeve
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Abstract
The utility model provides a seal structure of oil-free air compression pump cylinder liner and valve plate, the cylinder liner (3) is arranged outside the oil-free air compression pump piston (4), the valve cover (1) is arranged on the upper side of the cylinder liner (3), a seal ring (2) is arranged between the cylinder liner (3) and the valve cover (1), a valve cover groove (8) is arranged on the lower side of the valve cover (1), and the seal ring (2) is arranged between the valve cover groove (8) and the cylinder liner (2); and fixing threaded holes (5) are formed in the periphery of the valve cover (1). The utility model is characterized in that: the traditional convex circular groove is improved into a groove for placing a sealing ring, so that the reduction of the sealing effect of the valve cover caused by overlarge stress or uneven stress can be avoided; meanwhile, the structure of the device is more convenient to install, and the production efficiency is improved.
Description
Technical Field
The utility model relates to a seal structure, in particular to seal structure of oilless air compression pump cylinder liner and valve plate.
Background
The oil-free air compression pump is a main body in an air source device, and converts the machinery of a source engine into gas pressure energy. As society develops further, a high standard liquid for the quality of compressed air is gradually applied.
The oil-free air compression pump belongs to a miniature reciprocating piston type compressor, and the working principle of the oil-free air compression pump is that air enters the compressor through an air inlet pipe, the rotation of a motor is that a piston reciprocates to compress the air, so that pressure gas has an air outlet and opens a check valve through a high-pressure hose to enter an air storage tank. The sealing effect in the compressor determines how efficient it compresses air. The cylinder sleeve and the valve plate of a common compressor are mainly characterized in that a convex circular groove is arranged on the valve plate to fix a sealing ring, and then the cylinder sleeve and the valve plate are fixedly sealed through threads. However, once the convex circular groove is deformed and damaged, the sealing effect of the whole cylinder sleeve is directly influenced, and the efficiency of compressing air is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current technical defect, design the seal structure of oilless air compression pump cylinder liner and valve plate, through be equipped with the recess that can place the sealing washer on the valve gap, fix through the screw bolt, reach sealed effect.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a seal structure of oilless air compression pump cylinder liner and valve plate, includes that oilless air compression pump piston (4) outside is equipped with cylinder liner (3), cylinder liner (3) upside is equipped with valve gap (1), be equipped with between cylinder liner (3) and valve gap (1) sealing washer (2).
A valve cover groove (8) is formed in the lower side of the valve cover (1), and the sealing ring (2) is arranged between the valve cover groove (8) and the cylinder sleeve (2); and fixing threaded holes (5) are formed in the periphery of the valve cover (1).
The oil-free air compression pump piston (4) is composed of a fixed rotating shaft (6) and an eccentric device (7).
The cylinder sleeve is cylindrical and is made of high-quality aluminum, the outer layer of the cylinder sleeve is coated with rigid aluminum oxide, and the sealing ring (2) is made of nitrile rubber.
Advantageous effects
The utility model improves the valve cover, improves the traditional convex circular groove into a groove for placing the sealing ring, and can avoid the reduction of the sealing effect caused by over-large stress or uneven stress on the valve cover; meanwhile, the structure of the device is more convenient to install, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic view of a sealing structure between a cylinder sleeve and a valve plate of an oil-free air compression pump in the embodiment 1;
FIG. 2 is a schematic structural view of the valve plate in the embodiment 1;
FIG. 3 is a schematic view of a sealing structure between a cylinder sleeve and a valve plate of the conventional useless air compression pump in the embodiment 2;
in the figure, 1, a valve cover; 2. a seal ring; 3. a cylinder liner; 4. an oil-free air compressor pump piston; 5. Fixing the threaded hole; 6. fixing the rotating shaft; 7. an eccentric; 8. a valve cover groove; 9. a conventional valve cover; 10. the convex circular groove of traditional valve gap.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, which are used only for illustrating the present invention and are not intended to limit the present invention.
Example 1
As shown in figures 1 and 2, the sealing structure for the cylinder sleeve and the valve plate of the oil-free air compression pump is characterized in that the cylinder sleeve (3) is arranged on the outer side of a piston (4) of the oil-free air compression pump, a valve cover (1) is arranged on the upper side of the cylinder sleeve (3), and a sealing ring (2) is arranged between the cylinder sleeve (3) and the valve cover (1).
A valve cover groove (7) is formed in the lower side of the valve cover (1), the sealing ring (2) is arranged between the valve cover groove (8) and the cylinder sleeve (2), and fixing threaded holes (5) are formed in the periphery of the valve cover (1).
The oil-free air compression pump piston (4) consists of a fixed rotating shaft (6) and an eccentric (7).
The cylinder sleeve is cylindrical and is made of high-quality aluminum, and the outer layer of the cylinder sleeve is coated with rigid aluminum oxide; the sealing ring (2) is made of nitrile rubber.
Example 2
As shown in figure 3, the traditional useless air compression pump cylinder sleeve and valve plate sealing structure is characterized in that a traditional valve cover convex circular groove (10) is formed in the lower side of a traditional valve plate (9), a sealing ring (2) is arranged in the traditional valve cover convex circular groove (10), and the traditional valve cover convex circular groove is fixed through a threaded hole in the valve plate. The other structures are the same as those shown in fig. 1 and 3.
The sealing structure of the cylinder liner and the valve plate in comparative example 1 and example 2 has different structures on the valve plate, and has different influences on the whole sealing effect. The convex circular groove is large in stress area, uneven stress is prone to occurring in the fixing process, and the convex circular groove is damaged along with the lapse of working time, so that the sealing ring is deviated, and the sealing effect of the convex circular groove is finally influenced.
Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (4)
1. The utility model provides a seal structure of oilless air compression pump cylinder liner and valve plate which characterized in that, oilless air compression pump piston (4) outside is equipped with cylinder liner (3), cylinder liner (3) upside is equipped with valve gap (1), be equipped with between cylinder liner (3) and valve gap (1) sealing washer (2).
2. An oil-free air compression pump cylinder sleeve and valve plate sealing structure as claimed in claim 1, wherein a valve cover groove (8) is formed in the lower side of the valve cover (1), and the sealing ring (2) is arranged between the valve cover groove (8) and the cylinder sleeve (3); and fixing threaded holes (5) are formed in the periphery of the valve cover (1).
3. An oil-free air compression pump cylinder sleeve and valve plate sealing structure as claimed in claim 1, wherein the oil-free air compression pump piston (4) is composed of a fixed rotating shaft (6) and an eccentric (7).
4. An oil-free air compression pump cylinder sleeve and valve plate sealing structure as claimed in claim 1, wherein the cylinder sleeve is cylindrical and is made of high-quality aluminum, the outer layer of the cylinder sleeve is coated with rigid aluminum oxide, and the sealing ring (2) is made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624242.2U CN211009005U (en) | 2019-09-27 | 2019-09-27 | Sealing structure of cylinder sleeve and valve plate of oil-free air compression pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624242.2U CN211009005U (en) | 2019-09-27 | 2019-09-27 | Sealing structure of cylinder sleeve and valve plate of oil-free air compression pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009005U true CN211009005U (en) | 2020-07-14 |
Family
ID=71476720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921624242.2U Active CN211009005U (en) | 2019-09-27 | 2019-09-27 | Sealing structure of cylinder sleeve and valve plate of oil-free air compression pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009005U (en) |
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2019
- 2019-09-27 CN CN201921624242.2U patent/CN211009005U/en active Active
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