CN203035945U - Piston ring - Google Patents
Piston ring Download PDFInfo
- Publication number
- CN203035945U CN203035945U CN 201220749215 CN201220749215U CN203035945U CN 203035945 U CN203035945 U CN 203035945U CN 201220749215 CN201220749215 CN 201220749215 CN 201220749215 U CN201220749215 U CN 201220749215U CN 203035945 U CN203035945 U CN 203035945U
- Authority
- CN
- China
- Prior art keywords
- piston
- ring
- annular groove
- wall
- piston ring
- 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
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a piston ring. The piston ring comprises a sealing ring, wherein an inner wall of a central hole of the sealing ring is matched with an outer wall of a piston. The piston ring is characterized in that an annular groove is arranged on an outer wall of the sealing ring along the circumferential direction of the sealing ring, and the annular groove is open. The opening direction of the annular groove is arranged back onto the axis of the sealing ring. One side end face of the sealing ring is a plane, and a V-shaped groove is arranged on the other side end face of the sealing ring. The annular groove is arranged on the outer wall of the sealing ring, which is close to one side of the V-shaped groove. By the aid of the piston ring, the friction between the piston ring and a cylinder body is reduced, the service life of a pneumatic element is prolonged, and the start-up pressure of an air cylinder or a valve body is reduced.
Description
Technical field
The utility model relates to a kind of piston ring, and especially a kind of piston ring that reduces piston friction belongs to the valve component technical field.
Background technique
In each kind valve body (as pilot valve etc.) or cylinder body, all can use piston, piston can be for a long time in no oil supply, at a high speed, carry out work under the abominable operating conditions such as high temperature.Piston of the prior art generally adopts cast iron quality, piston ring or colloid seal ring is housed on the piston leaks to prevent fluid.The friction system of piston ring and valve body or cylinder body is bigger, can produce higher temperature rise on the one hand, shorten the working life of seal ring, the friction of piston ring and cylinder body or valve body is bigger on the other hand, increase the breakout pressure of cylinder or valve body, reduced the working life of cylinder or valve body.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of piston ring is provided, and reduces the friction between piston ring and cylinder body or the valve body, improves the working life of cylinder or valve body.
According to the technological scheme that the utility model provides, described piston ring comprises seal ring, and the center bore inner wall of seal ring matches with the outer wall of piston; It is characterized in that: on the outer wall of described seal ring along seal ring annular groove circumferentially is set, annular groove is uncovered shape.
The opening direction of described annular groove is the axis of seal ring dorsad.
One side end face of described seal ring is the plane, and the opposite side end face is provided with V-shaped groove.
Described annular groove is arranged on the outer wall near the seal ring of V-shaped groove one side.
Piston ring described in the utility model has reduced the friction between piston ring and the cylinder body on the one hand, has improved the working life of pneumatic element; Reduce the friction between piston ring and the cylinder body on the other hand, reduced the breakout pressure of cylinder or valve body.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete accompanying drawing.
As shown in Figure 1: described piston ring comprises seal ring 1, V-shaped groove 2, annular groove 3 etc.
As shown in Figure 1, the utility model comprises O-ring seal 1, and the center bore inner wall of seal ring 1 matches with the outer wall of piston; One side end face of described seal ring 1 is the plane, and the opposite side end face is provided with V-shaped groove 2;
On the outer wall of described seal ring 1 near a side of V-shaped groove 2, along seal ring 1 annular groove 3 circumferentially is set, annular groove 3 is uncovered shape, and the opening direction of annular groove 3 axis of seal ring 1 dorsad.
Piston ring described in the utility model is enclosed within on the piston in use, and the annular groove 3 on piston ring 1 surface can play the effect that stores lubricating grease, and long-time the use also can be played good lubricating effect; And also increased the tightness between piston ring and the cylinder body greatly, improved the performance of piston.
The utility model has reduced the friction between piston ring and the cylinder body on the one hand, has improved the working life of pneumatic element; Reduce the friction between piston ring and the cylinder body on the other hand, reduced the breakout pressure of cylinder or valve body.
Claims (4)
1. a piston ring comprises seal ring (1), and the center bore inner wall of seal ring (1) matches with the outer wall of piston; It is characterized in that: on the outer wall of described seal ring (1) along seal ring (1) annular groove (3) circumferentially is set, annular groove (3) is uncovered shape.
2. piston ring as claimed in claim 1, it is characterized in that: the opening direction of described annular groove (3) is the axis of seal ring (1) dorsad.
3. piston ring as claimed in claim 1, it is characterized in that: a side end face of described seal ring (1) is the plane, the opposite side end face is provided with V-shaped groove (2).
4. piston ring as claimed in claim 3 is characterized in that: described annular groove (3) is arranged on the outer wall near the seal ring (1) of V-shaped groove (2) one sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749215 CN203035945U (en) | 2012-12-31 | 2012-12-31 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749215 CN203035945U (en) | 2012-12-31 | 2012-12-31 | Piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035945U true CN203035945U (en) | 2013-07-03 |
Family
ID=48688074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220749215 Expired - Fee Related CN203035945U (en) | 2012-12-31 | 2012-12-31 | Piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035945U (en) |
-
2012
- 2012-12-31 CN CN 201220749215 patent/CN203035945U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103758723A (en) | Air pump of engineering machinery braking system | |
| CN204254000U (en) | Pneumatic piston high thrust repid cut-off valve | |
| CN203743119U (en) | Negative-pressure-preventing hydraulic cylinder | |
| CN204900407U (en) | Seal structure of pneumatic cylinder cylinder cap | |
| CN203035945U (en) | Piston ring | |
| CN207454832U (en) | One kind is used for machining center four-axis fixture rotation oil distributing valve | |
| CN203453178U (en) | Energy-saving roll bending cylinder block | |
| CN203702477U (en) | Air booster pump of engineering mechanical braking system | |
| CN204900389U (en) | Mounting structure of pneumatic cylinder cylinder bottom | |
| CN104132131A (en) | Novel hydraulic cylinder silicon rubber sealing ring structure | |
| CN204344567U (en) | A kind of without sealing servo-cylinder | |
| CN203604315U (en) | Flat scissor type oil cylinder | |
| CN203495644U (en) | Ball high-speed machinery main shaft oil cylinder assembly | |
| CN202706986U (en) | Bilateral oil channel cock valve | |
| CN203412842U (en) | Oil distribution disc for hydraulic cylinder | |
| CN202732455U (en) | Combined-type sealing structure of pump | |
| CN204804967U (en) | A piston for on engine | |
| CN202597023U (en) | High-pressure packing sealing device for compressor | |
| CN202418311U (en) | Clutch master cylinder | |
| CN204082317U (en) | Turbine box venting valve transmitting assemblies | |
| CN204253505U (en) | A kind of seal arrangement preventing hydraulic machine piston bar oil impregnate | |
| CN204514008U (en) | A kind of seal of rotary kiln device | |
| CN204003756U (en) | A kind of inboard wall of cylinder block carries the oil hydraulic cylinder of seal groove | |
| CN203189780U (en) | High-pressure self-sealing spherical valve | |
| CN202832695U (en) | Engine valve seat ring |
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: 20130703 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |