CN202756605U - High-tightness piston for engineering machinery - Google Patents
High-tightness piston for engineering machinery Download PDFInfo
- Publication number
- CN202756605U CN202756605U CN 201220398511 CN201220398511U CN202756605U CN 202756605 U CN202756605 U CN 202756605U CN 201220398511 CN201220398511 CN 201220398511 CN 201220398511 U CN201220398511 U CN 201220398511U CN 202756605 U CN202756605 U CN 202756605U
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- CN
- China
- Prior art keywords
- piston
- head
- afterbody
- connects
- ring recess
- 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 provides a piston and particularly relates to a high-tightness piston for engineering machinery. The high-tightness piston comprises a piston body, a mounting hole is arranged in the piston body, and an indent ring groove is arranged in the head portion of the mounting hole. A head matching position ring groove is arranged on the head portion on the outer side wall of the piston body, and a tail matching position ring groove is arranged in the tail portion of on the outer side wall of the piston body. A deep seal groove is arranged between the head matching position ring groove and the tail matching position ring groove, and a shallow seal groove is arranged on the right of the tail matching position ring groove. The high-tightness piston is compact in structure, high in mounting accuracy and tightness is improved.
Description
Technical field
The utility model is a kind of piston, particularly a kind of high leak tightness piston for engineering machinery.
Background technique
Piston assembling precision of the prior art is low, and usability is not enough to some extent simultaneously, so that using effect descends.
Chinese patent 201120399469.9 discloses a kind of novel piston, belongs to the mechanical parts technical field, comprises piston only, is provided with one-way valve and direction one-way valve in the described piston only; Described one-way valve and direction one-way valve are equally spaced to be arranged on the same circumference.The assembling mode of this structure is not fastening, and assembly precision is lower simultaneously, simultaneously assembling trouble.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, compact structure, and promote assembly precision, improve the high leak tightness piston that is used for engineering machinery of sealing effect.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of high leak tightness piston for engineering machinery, comprise piston body, be provided with pilot hole in the described piston body, the head of described pilot hole is provided with interior concave ring slot, the head of described piston body outer side wall is provided with head and connects a ring recess, the afterbody of described piston body outer side wall is provided with afterbody and connects a ring recess, and described head connects a ring recess and afterbody and connects and be provided with the depth seals groove between a ring recess, and the right side that described afterbody connects a ring recess is provided with shallow degree seal groove.
As preferably, the head of described pilot hole and afterbody are respectively equipped with trapezoidal regulating tank.
As preferably, interior knuckle, afterbody that the interior knuckle of described interior concave ring slot, head connect a ring recess connect the interior knuckle of a ring recess, the interior knuckle of depth seals groove and the interior knuckle of shallow degree seal groove and are respectively arc round angle.
As preferably, the outer knuckle of described piston body is bevel, and the angle of inclination of described bevel is 45 degree.
Therefore, the high leak tightness piston that is used for engineering machinery that the utility model provides, compact structure, assembly precision is high, improves sealing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of high leak tightness piston for engineering machinery, comprise piston body 1, be provided with pilot hole 2 in the described piston body 1, the head of described pilot hole 2 is provided with interior concave ring slot 3, the head of described piston body 1 outer side wall is provided with head and connects a ring recess 4, the afterbody of described piston body 1 outer side wall is provided with afterbody and connects a ring recess 5, described head connects a ring recess 4 and afterbody and connects 5 of ring recess and be provided with depth seals groove 6, and the right side that described afterbody connects a ring recess 5 is provided with shallow degree seal groove 7.The head of described pilot hole 2 and afterbody are respectively equipped with trapezoidal regulating tank 8.Interior knuckle, afterbody that the interior knuckle of described interior concave ring slot 3, head connect a ring recess 4 connect the interior knuckle of a ring recess 5, the interior knuckle of depth seals groove 6 and the interior knuckle of shallow degree seal groove 7 and are respectively arc round angle.The outer knuckle of described piston body 1 is bevel 9, and the angle of inclination of described bevel 9 is 45 degree.
Claims (4)
1. high leak tightness piston that is used for engineering machinery, it is characterized in that: comprise piston body (1), be provided with pilot hole (2) in the described piston body (1), the head of described pilot hole (2) is provided with interior concave ring slot (3), the head of described piston body (1) outer side wall is provided with head and connects a ring recess (4), the afterbody of described piston body (1) outer side wall is provided with afterbody and connects a ring recess (5), described head connects a ring recess (4) and afterbody and connects and be provided with depth seals groove (6) between a ring recess (5), and the right side that described afterbody connects a ring recess (5) is provided with shallow degree seal groove (7).
2. the high leak tightness piston for engineering machinery according to claim 1, it is characterized in that: the head of described pilot hole (2) and afterbody are respectively equipped with trapezoidal regulating tank (8).
3. the high leak tightness piston for engineering machinery according to claim 1 and 2 is characterized in that: interior knuckle, afterbody that interior knuckle, the head of described interior concave ring slot (3) connects a ring recess (4) connect the interior knuckle of a ring recess (5), the interior knuckle of depth seals groove (6) and the interior knuckle of shallow degree seal groove (7) and are respectively arc round angle.
4. the high leak tightness piston for engineering machinery according to claim 1 and 2, it is characterized in that: the outer knuckle of described piston body (1) is bevel (9), the angle of inclination of described bevel (9) is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398511 CN202756605U (en) | 2012-08-13 | 2012-08-13 | High-tightness piston for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398511 CN202756605U (en) | 2012-08-13 | 2012-08-13 | High-tightness piston for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756605U true CN202756605U (en) | 2013-02-27 |
Family
ID=47735789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220398511 Expired - Fee Related CN202756605U (en) | 2012-08-13 | 2012-08-13 | High-tightness piston for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575573A (en) * | 2017-08-11 | 2018-01-12 | 徐州东力锻压机械有限公司 | A kind of piston for engineering machinery |
-
2012
- 2012-08-13 CN CN 201220398511 patent/CN202756605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575573A (en) * | 2017-08-11 | 2018-01-12 | 徐州东力锻压机械有限公司 | A kind of piston for engineering machinery |
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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: 20130227 Termination date: 20140813 |
|
| EXPY | Termination of patent right or utility model |