CN107575574A - Plunger - Google Patents
Plunger Download PDFInfo
- Publication number
- CN107575574A CN107575574A CN201710782993.6A CN201710782993A CN107575574A CN 107575574 A CN107575574 A CN 107575574A CN 201710782993 A CN201710782993 A CN 201710782993A CN 107575574 A CN107575574 A CN 107575574A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- sealing ring
- described sleeve
- external diameter
- plunger
- 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.)
- Pending
Links
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- Gasket Seals (AREA)
Abstract
The invention discloses a kind of plunger, include the body and sealing ring of cylinder, also include a sleeve pipe, the body is multi-diameter shaft, the body includes the Part I being relatively large in diameter and direct less Part II, the external diameter of the Part I is identical with the external diameter of described sleeve pipe, described sleeve pipe is enclosed on the Part II, the sealing ring is arranged on the position between described sleeve pipe and the Part I on the body, sealing ring described in described sleeve pipe and the relative face clamping of the Part I.During use, pass through the distance between sleeve pipe and Part I end face, deform upon sealing ring, sleeve pipe and the distance between Part I are nearer, the amount that sealing ring is outwards extruded is bigger, that is, the external diameter of sealing ring just becomes bigger, passes through this regulative mode, sealing ring can be caused to be in close contact with casing wall, avoid leaking.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder, more particularly to a kind of plunger used on hydraulic cylinder.
Background technology
Traditional plunger includes the body of cylinder, and described body sidewall sets groove, sealing ring is set in groove.Tradition
Sealing ring be all a ring shape rubber ring, this sealing ring can not be adjusted, if after loading onto, finding local sealing not
Good, this also has no idea to adjust, it is therefore necessary to is improved.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of plunger, and it can adjust the external diameter of sealing ring
Size, it is easy to sealing ring to be in close contact with casing wall.
The present invention is achieved through the following technical solutions：Plunger, include the body and sealing ring of cylinder, in addition to one
Individual sleeve pipe, the body are multi-diameter shaft, and the body includes the Part I being relatively large in diameter and direct less Part II, institute
State that the external diameter of Part I is identical with the external diameter of described sleeve pipe, and described sleeve pipe is enclosed on the Part II, and the sealing ring is set
The position on the body between described sleeve pipe and the Part I is put, described sleeve pipe and the Part I are relative
Face clamping described in sealing ring.In use, by the distance between sleeve pipe and Part I end face, make sealing ring that shape occur
Become, sleeve pipe and the distance between Part I are nearer, and the amount that sealing ring is outwards extruded is bigger, that is, sealing ring external diameter just
Become bigger, by this regulative mode, sealing ring can be caused to be in close contact with casing wall, avoid leaking.
In above-mentioned technical proposal, it is preferred that described sleeve pipe is threadedly attached on the Part II.
In above-mentioned technical proposal, it is preferred that the sealing ring is O-ring.
The present invention has the advantages that：In use, by the distance between sleeve pipe and Part I end face, make sealing
Circle deforms upon, and sleeve pipe and the distance between Part I are nearer, and the amount that sealing ring is outwards extruded is bigger, that is, sealing ring
External diameter just become bigger, by this regulative mode, sealing ring can be caused to be in close contact with casing wall, avoid leaking.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Referring to Fig. 1, plunger, include cylindrical body 1 and sealing ring 2, in addition to a sleeve pipe 3, the body 1 are ladder
Axle, the body 1 include the Part I 11 that is relatively large in diameter and direct less Part II 12, the Part I 11 it is outer
Footpath is identical with the external diameter of described sleeve pipe 3, and described sleeve pipe 3 is threadedly attached in the sealing ring 2 on the Part II 12 and set
Put the position between described sleeve pipe 3 and the Part I 11 on the body 1, described sleeve pipe 3 and described first
Divide sealing ring 3 described in 11 relative face clampings.
In use, by the distance between sleeve pipe and Part I end face, deform upon sealing ring, sleeve pipe and first
Point the distance between it is nearer, the amount that sealing ring is outwards extruded is bigger, that is, the external diameter of sealing ring just becomes bigger, passes through this
Kind regulative mode, can cause sealing ring to be in close contact with casing wall, avoid leaking.
Claims (3)
1. plunger, include the body and sealing ring of cylinder, it is characterised in that：Also include a sleeve pipe, the body is ladder
Axle, the body include the Part I being relatively large in diameter and direct less Part II, the external diameter of the Part I and institute
It is identical to state the external diameter of sleeve pipe, described sleeve pipe is enclosed on the Part II, and the sealing ring, which is arranged on the body, is located at institute
State the position between sleeve pipe and the Part I, sealing described in described sleeve pipe and the relative face clamping of the Part I
Circle.
2. plunger according to claim 1, it is characterised in that：Described sleeve pipe is threadedly attached in the Part II
On.
3. plunger according to claim 1, it is characterised in that：The sealing ring is O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710782993.6A CN107575574A (en) | 2017-09-03 | 2017-09-03 | Plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710782993.6A CN107575574A (en) | 2017-09-03 | 2017-09-03 | Plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107575574A true CN107575574A (en) | 2018-01-12 |
Family
ID=61030696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710782993.6A Pending CN107575574A (en) | 2017-09-03 | 2017-09-03 | Plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575574A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131232A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | The piston of hydraulic motor |
| CN110145433A (en) * | 2019-06-17 | 2019-08-20 | 宁波东液传动科技有限公司 | Piston for hydraulic motor |
| CN110159757A (en) * | 2019-06-17 | 2019-08-23 | 宁波东液传动科技有限公司 | Built-up piston |
| CN110219769A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of piston for hydraulic motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118141A (en) * | 1989-12-07 | 1992-06-02 | Sanko Kogyo Kabushiki Kaisha | Union joint |
| JPH10252892A (en) * | 1997-03-18 | 1998-09-22 | Ishikawa Gasket Kk | Sealing structure of metal plate gasket |
| CN103291911A (en) * | 2013-06-25 | 2013-09-11 | 郑州大学 | Compression type gas pressing nanometer coining self-adaptive pressing piston structure |
| CN203453465U (en) * | 2013-09-11 | 2014-02-26 | 林红泽 | Sealing nut |
| CN205047824U (en) * | 2015-10-09 | 2016-02-24 | 廊坊金润电气有限公司 | Female connection plug screw |
-
2017
- 2017-09-03 CN CN201710782993.6A patent/CN107575574A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5118141A (en) * | 1989-12-07 | 1992-06-02 | Sanko Kogyo Kabushiki Kaisha | Union joint |
| JPH10252892A (en) * | 1997-03-18 | 1998-09-22 | Ishikawa Gasket Kk | Sealing structure of metal plate gasket |
| CN103291911A (en) * | 2013-06-25 | 2013-09-11 | 郑州大学 | Compression type gas pressing nanometer coining self-adaptive pressing piston structure |
| CN203453465U (en) * | 2013-09-11 | 2014-02-26 | 林红泽 | Sealing nut |
| CN205047824U (en) * | 2015-10-09 | 2016-02-24 | 廊坊金润电气有限公司 | Female connection plug screw |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131232A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | The piston of hydraulic motor |
| CN110145433A (en) * | 2019-06-17 | 2019-08-20 | 宁波东液传动科技有限公司 | Piston for hydraulic motor |
| CN110159757A (en) * | 2019-06-17 | 2019-08-23 | 宁波东液传动科技有限公司 | Built-up piston |
| CN110219769A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of piston for hydraulic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180112 |
|
| WD01 | Invention patent application deemed withdrawn after publication |