CN107366658A - A kind of plunger - Google Patents
A kind of plunger Download PDFInfo
- Publication number
- CN107366658A CN107366658A CN201710782999.3A CN201710782999A CN107366658A CN 107366658 A CN107366658 A CN 107366658A CN 201710782999 A CN201710782999 A CN 201710782999A CN 107366658 A CN107366658 A CN 107366658A
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- sleeve pipe
- described sleeve
- ring
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of plunger, include the body and sealing ring of cylinder, in addition to two sleeve pipes, described sleeve pipe connects on the body, region on the body between two described sleeve pipes is provided with sealing ring, and the relative end face of described sleeve pipe is in close contact with the sealing ring.In use, by adjusting the distance between two sleeve pipes, deform upon sealing ring, the distance between sleeve pipe is nearer, and the amount that sealing ring is outwards extruded is bigger, that is, the external diameter of sealing ring just becomes bigger, by 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：A kind of plunger, include the body and sealing ring of cylinder, also wrap
Two sleeve pipes are included, described sleeve pipe is connected on the body, and the region on the body between two described sleeve pipes is set
There is sealing ring, the relative end face of described sleeve pipe is in close contact with the sealing ring.In use, by between two sleeve pipes of regulation
Distance, deform upon sealing ring, the distance between sleeve pipe is nearer, and the amount that sealing ring is outwards extruded is bigger, that is, close
The external diameter of seal just becomes 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 body.
In above-mentioned technical proposal, it is preferred that the sealing ring is O-ring.
The present invention has the advantages that：It is sealing ring in use, by adjusting the distance between two sleeve pipes
The distance between deformation, sleeve pipe is nearer, and the amount that sealing ring is outwards extruded is bigger, and more exactly the external diameter of sealing ring just becomes more
Greatly, 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, a kind of plunger, include cylindrical body 1 and O-ring 2, in addition to two sleeve pipes 3, described sleeve pipe 3 connect
On the body 1, described sleeve pipe 3 is threadedly attached on the body 1.
Region on the body 1 between two described sleeve pipes 3 is provided with O-ring 2, described sleeve pipe 3 it is relative one
End face is in close contact with the O-ring 2.
In use, by adjusting the distance between two sleeve pipes, deform upon O-ring, the distance between sleeve pipe is nearer,
The amount that O-ring is outwards extruded is bigger, and more exactly the external diameter of O-ring just becomes bigger, by this regulative mode, can cause
O-ring is in close contact with casing wall, avoids leaking.
Claims (3)
1. a kind of plunger, include the body and sealing ring of cylinder, it is characterised in that：Also include two sleeve pipes, described sleeve pipe connects
Connect on the body, the region on the body between two described sleeve pipes is provided with sealing ring, and described sleeve pipe is relative
End face and the sealing ring be in close contact.
A kind of 2. plunger according to claim 1, it is characterised in that：Described sleeve pipe is threadedly attached in the body
On.
A kind of 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 |
|---|---|---|---|
| CN201710782999.3A CN107366658A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710782999.3A CN107366658A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366658A true CN107366658A (en) | 2017-11-21 |
Family
ID=60311579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710782999.3A Pending CN107366658A (en) | 2017-09-03 | 2017-09-03 | A kind of plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366658A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131237A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | A kind of 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 |
| CN110219850A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of built-up piston |
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 CN201710782999.3A patent/CN107366658A/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 |
|---|---|---|---|---|
| CN110131237A (en) * | 2019-06-17 | 2019-08-16 | 宁波东液传动科技有限公司 | A kind of 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 |
| CN110219850A (en) * | 2019-06-17 | 2019-09-10 | 宁波东液传动科技有限公司 | A kind of built-up piston |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171121 |