CN210830425U - Piston ring - Google Patents
Piston ring Download PDFInfo
- Publication number
- CN210830425U CN210830425U CN201921607958.1U CN201921607958U CN210830425U CN 210830425 U CN210830425 U CN 210830425U CN 201921607958 U CN201921607958 U CN 201921607958U CN 210830425 U CN210830425 U CN 210830425U
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- CN
- China
- Prior art keywords
- groove
- ring body
- opening
- section
- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model provides a sealing performance is good, can be under the high pressure reliable piston ring of work. The section of the ring body is a rectangular ring body (1), an opening (2) is formed in the ring body (1), a groove (3) extending along the circumferential direction is formed in the corner of the outer side of the ring body (1), and the groove (3) extends to one end of the opening (2); the other end of the opening (2) is provided with a lapping strip (4) which extends into the groove along the circumferential direction, and the cross section of the lapping strip (4) is the same as that of the groove (3).
Description
Technical Field
The utility model relates to a piston ring.
Background
The piston ring is a ring body for being embedded inside a piston groove and is fitted into a ring groove having a cross section corresponding thereto. The reciprocating and rotating piston rings form a seal between the outer circumferential surface of the ring and the cylinder and one side of the ring and the ring groove by means of a pressure difference of gas or liquid.
The conventional piston rod openings, such as the straight shape, the inclined shape, and the stepped shape, do not satisfy the required allowable leakage amount, particularly in a high-pressure operating state.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a piston ring that sealing performance is good, can reliably work under high pressure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a piston ring comprises a ring body 1 with a rectangular cross section, wherein an opening 2 is formed in the ring body 1, a groove 3 extending along the circumferential direction is formed in the corner of the outer side of the ring body 1, and the groove 3 extends to one end of the opening 2; at the other end of the opening 2 there is a web 4 extending circumferentially into the groove, the web 4 having the same cross-section as the groove 3.
In the piston ring, the cross section of the lap strip 4 is rectangular, and two side surfaces of the lap strip 4 are in contact with two side walls of the groove 3.
The utility model discloses in, open the recess in the outside corner of ring body, at the piston ring during operation, this department receives great outside fluid medium pressure, under this medium pressure, can in close contact with at the recess of this department and take the strip, has better leakproofness. The lapping strips and the grooves with rectangular cross sections are more convenient to produce and process. The piston rod can work reliably under high medium pressure of 1.5 MPa.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a right side view of fig. 1.
Fig. 4 is an enlarged view of a-a section of fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the piston ring comprises a ring body 1 with a rectangular cross section, wherein an opening 2 is formed in the ring body 1, a groove 3 with a rectangular cross section and extending along the circumferential direction is formed in the corner of the outer side of the ring body 1, and the groove 3 extends to one end of the opening 2; at one end of the opening 2 there is a web 4 extending circumferentially into the groove, the web 4 having the same cross-section as the groove 3.
Claims (2)
1. A piston ring comprises a ring body (1) with a rectangular cross section, wherein an opening (2) is formed in the ring body (1), and the piston ring is characterized in that a groove (3) extending along the circumferential direction is formed in the corner of the outer side of the ring body (1), and the groove (3) extends to one end of the opening (2); the other end of the opening (2) is provided with a lapping strip (4) which extends into the groove along the circumferential direction, and the cross section of the lapping strip (4) is the same as that of the groove (3).
2. Piston ring according to claim 1, characterized in that the cross-section of the web (4) is rectangular, the two side faces of the web (4) being in contact with the two side walls of the groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921607958.1U CN210830425U (en) | 2019-09-25 | 2019-09-25 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921607958.1U CN210830425U (en) | 2019-09-25 | 2019-09-25 | Piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210830425U true CN210830425U (en) | 2020-06-23 |
Family
ID=71263841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921607958.1U Active CN210830425U (en) | 2019-09-25 | 2019-09-25 | Piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210830425U (en) |
-
2019
- 2019-09-25 CN CN201921607958.1U patent/CN210830425U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |