CN201810758U - Piston seal for cone-shaped sealing surface of L-shaped support ring - Google Patents
Piston seal for cone-shaped sealing surface of L-shaped support ring Download PDFInfo
- Publication number
- CN201810758U CN201810758U CN2010205588549U CN201020558854U CN201810758U CN 201810758 U CN201810758 U CN 201810758U CN 2010205588549 U CN2010205588549 U CN 2010205588549U CN 201020558854 U CN201020558854 U CN 201020558854U CN 201810758 U CN201810758 U CN 201810758U
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- sealing
- ring
- piston seal
- shaped
- elastic ring
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- Expired - Lifetime
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Abstract
The utility model belongs to the technical field of hydraulic and pneumatic sealing elements, in particular to a piston seal for a cone-shaped sealing surface of an L-shaped support ring, which solves the problem that the piston seal in the prior art has the disadvantages of single structure, poor sealing material complementation and pressure stability, short service life, liquid leakage and the like. The piston seal consists of an elastic ring playing an auxiliary sealing role, a sealing ring sleeved on the elastic ring, and support rings which are positioned at the two ends of the sealing ring, are sleeved on steps at two ends of the elastic ring and have L-shaped sections. The sealing surface of the sealing ring is cone-shaped. A groove is formed on the inner circle surface of the elastic ring and the section of the elastic ring is T-shaped. Due to the adoption of particular sealing material and geometric shape, the piston seal has the advantages of compact structure, overall stability, good sealing performance, small friction coefficient, excellent decompression resistance, extrusion resistance and long service life, and is a two-way piston seal which is widely applied to the heavy-load working condition.
Description
Technical field
The utility model belongs to hydraulic pressure, pneumatic seal technical field, relates to a kind of to-and-fro motion piston seal, is specially the piston seal of L shaped support ring conical seal (contact) face.
Background technique
Existing piston seals common structure and is Y shape circle, cydariform circle, U-shaped envelope, folder cloth combination seal etc., and its major defect is problems such as structure is single, the elastomer material is single, sliding-frictional resistance is big, working life is low, anti-high pressure difference.
Summary of the invention
The utility model is problems such as the structure of piston seal is single in the prior art, sealing material is complementary, pressure stability is poor, working life is short, leakage in order to solve, and a kind of piston seal of L shaped support ring conical seal (contact) face is provided.Such closure size is stablized, is met tolerance, compact structure, anti-ly extrudes damages, wear-resistant, has pressure stability under load, and good, the anti-extrusion performance of axially locating is splendid, high abrasion, the low friction, and no creeping phenomenon, high low pressure sealability are reliable.
The utility model adopts following technological scheme to realize: the piston seal of L shaped support ring conical seal (contact) face, by an elastic ring that plays the sealing booster action, to be placed in the seal ring on the elastic ring and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that L shaped support ring constitutes, the sealing surface of seal ring (outer round surface of seal ring) is a cone structure, and the cross section that the internal circular surfaces of elastic ring has groove and this ring is a T shape.
Main improvement of the present utility model is that all parts adopt unique technology to guarantee the precision and the whole sealing effect of product, and the sealing surface of seal ring adopts the structural design of taper, and is easy for installation, friction ractor is little; Elastomer is the T shape sealed member of band groove, and the deformation when effectively compensation sealing is along with working conditions change prevents to seal whole axial float simultaneously; Bad seals when the design of L shaped support ring prevents high pressure and distortion, the piston seal that constitutes with upper-part has made full use of the characteristic that each parts and material itself are had, can play the effect of low pressure no leakage, the anti-damage of high pressure along with the variation of operating mode, and have long working life.Adopt Sealing described in the utility model to improve the anti-side pressure and the wear resistance of sealing, can bear the sealing medium of low pressure, high pressure for a long time, stop its sealing medium to leak out Seal cage, reduced the frequent time sealing of to-and-fro motion number of times and produced heating and wearing and tearing with the cylinder body friction, install simple and convenient, easy damaged seal ring not.
The relative prior art of the utility model has following beneficial effect: adopted unique sealing material and geometrical shape, compact structure, monolithic stability, good seal performance, friction factor are little, having good anti-pressure release ability, anti-extruding and working life, is a kind of bidirectional piston sealing that is widely used under the severe duty.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1, seal ring, 2, support ring, 3, elastic ring
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is described further, embodiment is used for illustrating of the present utility model, rather than it is imposed any restrictions.
The piston seal of L shaped support ring conical seal (contact) face, by an elastic ring 3 that plays the sealing booster action, to be placed in the seal ring 1 on the elastic ring 3 and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that L shaped support ring 2 constitutes, the sealing surface of described seal ring 1 (outer round surface of seal ring) is a cone structure, and the cross section that the internal circular surfaces of elastic ring 3 has groove and this ring is a T shape.The size of piston seal can require design, customized according to reality, alternative original sealing configuration under the situation that does not change existing groove, and this structure has advantages such as anti-high pressure, high abrasion, good sealing effect, is used for the heavy-duty machinery industry more.
Claims (1)
1. the piston seal of a L shaped support ring conical seal (contact) face, it is characterized by: by an elastic ring (3) that plays the sealing booster action, to be placed in the seal ring (1) on the elastic ring (3) and to be positioned at the seal ring two ends and to be placed in cross section, step place, elastic ring two ends be that L shaped support ring (2) constitutes, the sealing surface of seal ring (1) is a cone structure, and the cross section that the internal circular surfaces of elastic ring (3) has groove and this ring is a T shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205588549U CN201810758U (en) | 2010-10-13 | 2010-10-13 | Piston seal for cone-shaped sealing surface of L-shaped support ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205588549U CN201810758U (en) | 2010-10-13 | 2010-10-13 | Piston seal for cone-shaped sealing surface of L-shaped support ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201810758U true CN201810758U (en) | 2011-04-27 |
Family
ID=43893700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205588549U Expired - Lifetime CN201810758U (en) | 2010-10-13 | 2010-10-13 | Piston seal for cone-shaped sealing surface of L-shaped support ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201810758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN103671926A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with T-shaped guide rings |
-
2010
- 2010-10-13 CN CN2010205588549U patent/CN201810758U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954220A (en) * | 2011-08-26 | 2013-03-06 | 优泰科(苏州)密封技术有限公司 | Piston sealing part |
| CN103671926A (en) * | 2013-11-26 | 2014-03-26 | 山西浩业通用设备有限公司 | Composite type drum-shaped seal ring provided with T-shaped guide rings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170418 Address after: 034100 West Road, Yuanping, Shanxi Patentee after: Shanxi Tai Bao Technology Co., Ltd. Address before: 034100 Luneng Road West, Shanxi, Yuanping Patentee before: Shanxi Taibao Sealing Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |