CN207621352U - Built-up piston sealing element - Google Patents
Built-up piston sealing element Download PDFInfo
- Publication number
- CN207621352U CN207621352U CN201721741888.XU CN201721741888U CN207621352U CN 207621352 U CN207621352 U CN 207621352U CN 201721741888 U CN201721741888 U CN 201721741888U CN 207621352 U CN207621352 U CN 207621352U
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- China
- Prior art keywords
- built
- angle
- sealing
- ring
- face
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- 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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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model is related to technical field of mechanical more particularly to a kind of built-up piston sealing elements；Including sealing ring and baffle ring, the corner of sealing ring side and outer diameter face is set as outer chamfer face, angle between outer chamfer face and outer diameter face is 135 °, the angle of outer chamfer face and sealing ring side is 135 °, baffle ring is the baffle ring that cross section is isosceles right triangle, the bottom edge length of isosceles right triangle is more than the length of the cross section in outer chamfer face, the bottom surface of isosceles right triangle is bonded with outer chamfer face part, a groove by upper sealing lip and the formation of lower sealing lip is offered on the another side of sealing ring, and O-ring seal is arranged in groove；Built-up piston seal configuration provided by the utility model is simple, use scope is wide and sealing performance is preferable.
Description
Technical field
The utility model is related to a kind of built-up piston sealing elements.
Background technology
The importance of the sealing ring of mechanical equipment is self-evident in the prior art, decides that fluid is gentle in industrial automation
The transmission performance of body and the quality of sealed product, play critical effect in the industrial production, due to answering for work condition environment
Miscellaneous changeable, various heavy hydraulic equipment continuously emerges, and the requirement to sealed product is also higher and higher, especially many heavy hydraulics
Equipment needs high voltage bearing piston rod packing.
Utility model content
It can bear to permit while higher pressure in order to solve the above technical problems, the purpose of this utility model is to provide one kind
Perhaps the built-up piston sealing element in the extrusion gap of bigger.
Built-up piston sealing element provided by the utility model, including sealing ring and baffle ring, the sealing ring side and outer diameter
The corner in face is set as outer chamfer face, and the angle between the outer chamfer face and outer diameter face is 135 °, the outer chamfer face and close
The angle of seal side is 135 °, and the baffle ring is the baffle ring that cross section is isosceles right triangle, the isosceles right angle trigonometry
The bottom edge length of shape is more than the length of the cross section in the outer chamfer face, bottom surface and the outer chamfer face of the isosceles right triangle
Part is bonded, and a groove by upper sealing lip and the formation of lower sealing lip, institute are offered on the another side of the sealing ring
It states and is arranged with O-ring seal in groove.
Further, the groove is v-depression.
Further, the within angle angle of the v-depression is 45~90 °.
Further, the corner of the sealing ring side and aperture surface is set as inner chamfer face.
Further, the angle between the inner chamfer face and aperture surface is 135 °, the inner chamfer face and sealing ring
The angle of side is 135 °.
Further, the upper sealing lip is equipped with chamfering.
Further, the lower sealing lip is equipped with chamfering.
According to the above aspect of the present invention, the utility model has at least the following advantages：In order to solve to be used in the piston rod course of work
Narrow groove, root are designed with baffle ring, can bear the extrusion gap for allowing bigger while higher pressure, and to different medium
The problems such as service life that sealing ring easy tos produce is short and sealing performance cannot be met the requirements, combination provided by the utility model
Piston seal is simple in structure, use scope is wide and good seal performance.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Description of the drawings
Fig. 1 is the sectional view of built-up piston sealing element provided by the utility model.
The meaning of each reference numeral is as follows in figure.
1 sealing ring, 2 baffle ring
3 outer diameter face, 4 outer chamfer face
6 times sealing lips of sealing lip on 5
7 O-ring seal, 8 inner chamfer face
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Fig. 1, a kind of built-up piston sealing element provided by the utility model, including sealing ring 1 and baffle ring 2, sealing ring 1
The corner of side and outer diameter face 3 is set as outer chamfer face 4, and the angle between outer chamfer face 4 and outer diameter face 3 is 135 °, outer chamfer
The angle of 1 side of face 4 and sealing ring is 135 °, and baffle ring 2 is the baffle ring that cross section is isosceles right triangle, isosceles right angle trigonometry
The bottom edge length of shape is more than the length of the cross section in outer chamfer face 4, and bottom surface and 4 part of outer chamfer face of isosceles right triangle are pasted
It closes, a groove by upper sealing lip 5 and the formation of lower sealing lip 6 is offered on the another side of sealing ring 1, card is set in groove
There is O-ring seal 7.
Sealing ring 1 and baffle ring 2 are cooperated by outer chamfer face 4, are permitted while so that sealing ring 1 is born higher pressure
Perhaps sealing ring 1 possesses the extrusion gap of bigger, therefore has better seal effect.
In order to preferably play pressure buffer effect or the effect of storage medium of undercut slot, groove is v-depression, V
The within angle angle of connected in star is 45~90 °
In order to preferably bear the pressure of 1 both sides of sealing ring, the corner of 1 side of sealing ring and aperture surface is set as inner chamfer
Face 8, the angle between inner chamfer face 8 and aperture surface are 135 °, and the angle of 1 side of inner chamfer face 8 and sealing ring is 135 °.
Excessively serious deformation occurs for upper sealing lip 5 and lower sealing lip 6 in order to prevent, and upper sealing lip 5 is equipped with chamfering, under
Sealing lip 6 is equipped with chamfering.
Above are merely preferred embodiments of the utility model, it is not intended to limit the utility model, it is noted that for
For those skilled in the art, without deviating from the technical principle of the utility model, if can also make
Dry improvement and modification, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of built-up piston sealing element, it is characterised in that：Including sealing ring and baffle ring, the sealing ring side and outer diameter face
Corner is set as outer chamfer face, and the angle between the outer chamfer face and outer diameter face is 135 °, the outer chamfer face and sealing ring
The angle of side is 135 °, and the baffle ring is the baffle ring that cross section is isosceles right triangle, the isosceles right triangle
Bottom edge length is more than the length of the cross section in the outer chamfer face, bottom surface and the outer chamfer face part of the isosceles right triangle
It is bonded, a groove by upper sealing lip and the formation of lower sealing lip is offered on the another side of the sealing ring, it is described recessed
O-ring seal is arranged in slot.
2. built-up piston sealing element according to claim 1, it is characterised in that：The groove is v-depression.
3. built-up piston sealing element according to claim 2, it is characterised in that：The within angle angle of the v-depression is
45~90 °.
4. built-up piston sealing element according to claim 1, it is characterised in that：The sealing ring side and aperture surface turn
Inner chamfer face is set as at angle.
5. built-up piston sealing element according to claim 4, it is characterised in that：Between the inner chamfer face and aperture surface
Angle is 135 °, and the angle of the inner chamfer face and sealing ring side is 135 °.
6. built-up piston sealing element according to claim 1, it is characterised in that：The upper sealing lip is equipped with chamfering.
7. built-up piston sealing element according to claim 1, it is characterised in that：The lower sealing lip is equipped with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741888.XU CN207621352U (en) | 2017-12-14 | 2017-12-14 | Built-up piston sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721741888.XU CN207621352U (en) | 2017-12-14 | 2017-12-14 | Built-up piston sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621352U true CN207621352U (en) | 2018-07-17 |
Family
ID=62823903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721741888.XU Expired - Fee Related CN207621352U (en) | 2017-12-14 | 2017-12-14 | Built-up piston sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621352U (en) |
-
2017
- 2017-12-14 CN CN201721741888.XU patent/CN207621352U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180717 Termination date: 20201214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |