CN201810773U - Piston seal element of arc-shaped seal surface of rectangular supporting ring - Google Patents

Piston seal element of arc-shaped seal surface of rectangular supporting ring Download PDF

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Publication number
CN201810773U
CN201810773U CN201020558852XU CN201020558852U CN201810773U CN 201810773 U CN201810773 U CN 201810773U CN 201020558852X U CN201020558852X U CN 201020558852XU CN 201020558852 U CN201020558852 U CN 201020558852U CN 201810773 U CN201810773 U CN 201810773U
Authority
CN
China
Prior art keywords
seal
ring
elastic ring
piston
arc
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.)
Expired - Lifetime
Application number
CN201020558852XU
Other languages
Chinese (zh)
Inventor
王金平
贾宪宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Tai Bao Technology Co., Ltd.
Original Assignee
SHANXI TAIBAO SEALING CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANXI TAIBAO SEALING CO Ltd filed Critical SHANXI TAIBAO SEALING CO Ltd
Priority to CN201020558852XU priority Critical patent/CN201810773U/en
Application granted granted Critical
Publication of CN201810773U publication Critical patent/CN201810773U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to the technical field of hydraulic and pneumatic seal pieces, in particular to a piston seal element of an arc-shaped seal surface of a rectangular supporting ring, which solves the problems of single structure, poor complementarity of seal materials, poor pressure stability, short service life, liquid leakage, and the like of the piston seal element in the prior art. The piston seal element comprises an elastic ring, a seal ring and a supporting ring, wherein the elastic ring plays an auxiliary seal action, the seal ring is sleeved on the elastic ring, the supporting ring is positioned at both ends of the seal ring and is sleeved on steps of both ends of the elastic ring, and the cross section of the supporting ring is rectangular; the seal surface of the seal ring has an arc-shaped structure; and the cross section of the elastic ring is in a T shape. The utility model adopts the unique seal materials and a geometrical shape, has compact structure, integral stability, good seal performance, little friction coefficients, good pressure release resistance, extrusion resistance and longer service life and is a bidirectional piston seal element which can be widely applied to a heavy load working condition.

Description

The piston seal of rectangle support ring circular arc sealing surface
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 rectangle support ring circular arc sealing surface.
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 rectangle support ring circular arc sealing surface 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 rectangle support ring circular arc sealing surface, 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 the support ring of rectangle constitutes, the sealing surface of seal ring (outer round surface of seal ring) is an arc-shaped structure, and the cross section of elastic 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 arc-shaped structure, and is easy for installation, friction ractor is little; Elastic ring is the T shape sealed member of band groove, the deformation when effectively compensation sealing is along with working conditions change; Bad seals when the design of rectangle support ring prevents high pressure and distortion reduce the wearing and tearing to sealing during to-and-fro motion; The piston seal that constitutes with upper-part has made full use of the characteristic that each parts and material itself are had, and can play the effect of low pressure no leakage, the anti-damage of high pressure along with the variation of operating mode, and have the working life of length.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 to-and-fro motion number of times when frequent seal ring and cylinder body friction produce heating and wearing and tearing, 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 rectangle support ring circular arc sealing surface, 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 the support ring 2 of rectangle constitutes, the sealing surface of described seal ring 1 (outer round surface of seal ring) is an arc-shaped structure, and the cross section of elastic ring 3 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 rectangle support ring circular arc sealing surface, 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 the support ring (2) of rectangle constitutes, the sealing surface of seal ring (1) is an arc-shaped structure, and the cross section of elastic ring (3) is a T shape.
CN201020558852XU 2010-10-13 2010-10-13 Piston seal element of arc-shaped seal surface of rectangular supporting ring Expired - Lifetime CN201810773U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020558852XU CN201810773U (en) 2010-10-13 2010-10-13 Piston seal element of arc-shaped seal surface of rectangular supporting ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020558852XU CN201810773U (en) 2010-10-13 2010-10-13 Piston seal element of arc-shaped seal surface of rectangular supporting ring

Publications (1)

Publication Number Publication Date
CN201810773U true CN201810773U (en) 2011-04-27

Family

ID=43893714

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020558852XU Expired - Lifetime CN201810773U (en) 2010-10-13 2010-10-13 Piston seal element of arc-shaped seal surface of rectangular supporting ring

Country Status (1)

Country Link
CN (1) CN201810773U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954219A (en) * 2011-08-26 2013-03-06 优泰科(苏州)密封技术有限公司 Piston sealing part
CN102954222A (en) * 2011-08-26 2013-03-06 优泰科(苏州)密封技术有限公司 Piston rod sealing part

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102954219A (en) * 2011-08-26 2013-03-06 优泰科(苏州)密封技术有限公司 Piston sealing part
CN102954222A (en) * 2011-08-26 2013-03-06 优泰科(苏州)密封技术有限公司 Piston rod sealing part

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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: 20170331

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