CN201795043U - Piston seal of trapezoidal sealing surface of L-shaped supporting ring - Google Patents
Piston seal of trapezoidal sealing surface of L-shaped supporting ring Download PDFInfo
- Publication number
- CN201795043U CN201795043U CN2010205411820U CN201020541182U CN201795043U CN 201795043 U CN201795043 U CN 201795043U CN 2010205411820 U CN2010205411820 U CN 2010205411820U CN 201020541182 U CN201020541182 U CN 201020541182U CN 201795043 U CN201795043 U CN 201795043U
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- sealing
- ring
- piston seal
- elastic ring
- seal
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Abstract
The utility model relates to a piston seal of a trapezoidal sealing surface of an L-shaped supporting ring, belonging to the technical field of hydraulic and pneumatic sealing elements. The utility model solves the problems that the structure of the piston seal in the prior art is single, the complementation performance and the pressure stability of sealing materials are poor, the service life is short, liquid leakage exists and the like. The piston seal consists of an elastic ring which has an auxiliary sealing function, a sealing ring which is sheathed on the elastic ring, and supporting rings with L-shaped cross section which are arranged at the two ends of the sealing ring and are sheathed at steps at the two ends of the elastic ring, wherein the sealing surface of the sealing ring (the external circle surface of the sealing ring) is in a trapezoidal structure, grooves are arranged on the internal circle surface of the elastic ring and the cross section of the elastic ring is T-shaped. By adopting the unique sealing materials and the unique geometrical shapes, the structure is compact, the overall stability is high, the sealing performance is good, the friction coefficient is small, the anti-pressure-release capacity and the anti-extrusion capacity are excellent and the service life is long. The piston seal is a two-way piston seal which can be widely used under working conditions of heavy loads.
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 the trapezoidal sealing surface of L shaped support ring.
Background technique:
Existing piston seals common structure and is Y shape circle, cydariform circle, U type envelope, folder cloth combination seal etc., and its major defect is problems such as structure is single, the elastic ring 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 the piston seal of the trapezoidal sealing surface of a kind of L shaped support ring 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 the trapezoidal sealing surface of L shaped support ring, 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 trapezium 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 trapezoidal structural design, and is easy for installation, friction ractor is little; Elastic ring 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, L shaped 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 the trapezoidal sealing surface of L shaped support ring, 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 trapezium 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 the trapezoidal sealing surface of L shaped support ring, 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 trapezium 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 |
|---|---|---|---|
| CN2010205411820U CN201795043U (en) | 2010-09-26 | 2010-09-26 | Piston seal of trapezoidal sealing surface of L-shaped supporting ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205411820U CN201795043U (en) | 2010-09-26 | 2010-09-26 | Piston seal of trapezoidal sealing surface of L-shaped supporting ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795043U true CN201795043U (en) | 2011-04-13 |
Family
ID=43849951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205411820U Expired - Lifetime CN201795043U (en) | 2010-09-26 | 2010-09-26 | Piston seal of trapezoidal sealing surface of L-shaped supporting ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795043U (en) |
Cited By (3)
| 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 |
| CN104455406A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Piston sealing element |
| CN111279107A (en) * | 2017-11-23 | 2020-06-12 | 应用材料公司 | Locking valve for vacuum sealing, vacuum chamber and vacuum processing system |
-
2010
- 2010-09-26 CN CN2010205411820U patent/CN201795043U/en not_active Expired - Lifetime
Cited By (3)
| 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 |
| CN104455406A (en) * | 2014-12-06 | 2015-03-25 | 无锡高卓流体设备有限公司 | Piston sealing element |
| CN111279107A (en) * | 2017-11-23 | 2020-06-12 | 应用材料公司 | Locking valve for vacuum sealing, vacuum chamber and vacuum processing system |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170515 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |