CN214837514U

CN214837514U - Sealing structure of sealing washer

Info

Publication number: CN214837514U
Application number: CN202121277593.8U
Authority: CN
Inventors: 于玲玲; 温雨; 王洪舜; 华红红; 姚琨经; 庞雪彬
Original assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Current assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-23
Anticipated expiration: 2031-06-08

Abstract

The utility model relates to a sealing gasket sealing structure, which has the key points of the technical proposal that the sealing gasket sealing structure comprises a cylinder body, a sealing gasket and an end cover, wherein the end cover is provided with a shaft hole, and the sealing gasket comprises an outer sealing ring body, an inner sealing ring body and a connecting rib for connecting the outer sealing ring body and the inner sealing ring body; a cylinder body sealing ring groove is formed in the connecting end face of the cylinder body, and a cover body sealing ring groove is formed in the connecting end face of the end cover; the cylinder body sealing ring groove and the cover body sealing ring groove form an accommodating cavity for accommodating the outer layer sealing ring body; the outer wall of the inner-layer sealing ring is attached to the inner wall of the shaft hole and the inner wall of the cylinder body; the utility model discloses can be better seal up sealing washer department connection structure.

Description

Sealing structure of sealing washer

Technical Field

The utility model relates to a seal structure technical field especially relates to a seal ring seal structure.

Background

Sealing gaskets are a common type of seal in the industry, where a sealing gasket seal is provided at a location such as the sealing end of the cylinder. Common sealing washer adopts the annular structure of thin slice more, and its sealed pad effect leans on seal ring direction of height's compression to realize sealing completely, and this kind of structural seal form is single, receives the depth of parallelism of cylinder body and end cover to and the influence of bolt moment of torsion is great, and it is not enough that seal ring is excessively compressed or compress to appear easily, thereby lead to seal ring life weak point, the poor problem of sealed effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a seal ring seal structure, what can be better seals the connection structure of sealing washer department.

The above technical purpose of the present invention can be achieved by the following technical solutions: a sealing structure of a sealing washer comprises a cylinder body, the sealing washer and an end cover, wherein the end cover is provided with a shaft hole, and the sealing washer comprises an outer sealing ring body, an inner sealing ring body and a connecting rib for connecting the outer sealing ring body and the inner sealing ring body; a cylinder body sealing ring groove is formed in the connecting end face of the cylinder body, and a cover body sealing ring groove is formed in the connecting end face of the end cover; the cylinder body sealing ring groove and the cover body sealing ring groove form an accommodating cavity for accommodating the outer layer sealing ring body; the outer wall of the inner-layer sealing ring is attached to the inner wall of the shaft hole and the inner wall of the cylinder body.

According to the technical scheme, the sealing washer comprises an outer sealing ring body and an inner sealing ring body, wherein the outer sealing ring body deforms under the pressure of the end cover to seal the joint of the cylinder body and the end cover; the inlayer seal ring body is under the inside pressure of sealing system, and inseparable laminating is on the inner wall of shaft hole and cylinder body to form double-deck sealed, compare in traditional single compression seal and have better sealed effect.

Preferably, the outer wall of the inner-layer sealing ring body is provided with a plurality of circumferential sealing ribs.

Through above-mentioned technical scheme, under the inside pressure of sealing system, the sealed muscle of circumference produces under the effect of pressure and warp to make the sealed muscle of circumference closely laminate on the inner wall of cylinder body or the inner wall in shaft hole, and then can play better sealed effect.

Preferably, the two end surfaces of the outer-layer sealing ring body are respectively provided with a plurality of end face sealing ribs.

Through above-mentioned technical scheme, through set up the end face seal muscle on the terminal surface of outer layer seal ring body, and then under the pressure of end cover, the end face seal muscle is flattened to can play better sealed effect.

Preferably, the inner wall of the shaft hole is provided with a positioning step for axially positioning the circumferential sealing rib.

Through above-mentioned technical scheme, through setting up the cooperation of location step and the sealed muscle of circumference to the good location of installing the inlayer seal ring body, and through the cooperation of location step and the sealed muscle of circumference, play better sealed effect.

Preferably, the end cover is connected with the cylinder body through bolts.

Through the technical scheme, the end cover is connected with the cylinder body through the bolts, so that the end cover can be conveniently and quickly installed on the cylinder body, and the sealing washer is conveniently compressed and sealed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic view of a seal arrangement of a sealing gasket

Fig. 2 is a schematic structural diagram showing the matching relationship of the cylinder body, the sealing washer and the end cover.

Fig. 3 is a schematic view of a sealing gasket.

Wherein, 1, a cylinder body; 11. a cylinder body sealing ring groove; 2. a sealing gasket; 21. an outer seal ring body; 211. end face sealing ribs; 22. an inner seal ring body; 221. a circumferential sealing rib; 23. connecting ribs; 3. an end cap; 31. a shaft hole; 32. the cover body seals the ring groove; 33. and positioning the step.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b):

a sealing gasket arrangement, shown in half-section in figures 1 to 3, comprises a cylinder 1, a sealing gasket 2 and an end cap 3. The end cover 3 is provided with an axle hole 31, the sealing washer 2 is positioned between the cylinder body 1 and the end cover 3, and the end cover 3 is fixed on the end surface of the cylinder body 1 through bolt connection.

Referring to fig. 1 to 3, the sealing gasket 2 includes an outer seal ring body 21, an inner seal ring body 22, and a connection rib 23 connecting the outer seal ring body 21 and the inner seal ring body 22. The outer wall of the inner-layer sealing ring body 22 is provided with a plurality of circumferential sealing ribs 221. The two end surfaces of the outer sealing ring body 21 are respectively provided with a plurality of end face sealing ribs 211.

Referring to fig. 1 to 3, a cylinder body sealing ring groove 11 is formed on the connecting end surface of the cylinder body 1, and a cover body sealing ring groove 32 is formed on the connecting end surface of the end cover 3; the cylinder body seal ring groove 11 and the cover body seal ring groove 32 constitute a housing cavity for housing the outer seal ring body 21. The outer wall of the inner sealing ring body 22 is attached to the inner wall of the shaft hole 31 and the inner wall of the cylinder body 1. The inner wall of the shaft hole 31 is provided with a positioning step 33 for axially positioning the circumferential sealing rib 221.

Referring to fig. 1 to 3, when the opening of the cylinder 1 is closed, a gasket 2 is first installed at an end surface of the cylinder 1. The outer-layer gasket body 21 of the sealing gasket 2 is fitted into the cylinder body sealing ring groove 11, and the inner-layer gasket body 22 is inserted into the cylinder body 1. Then, the inner seal ring body 22 is inserted into the shaft hole 31 of the end cap 3, and the circumferential seal rib 221 on the upper portion of the inner seal ring body 22 is placed on the upper portion of the positioning step 33 by the elastic deformation of the inner seal ring body 22, so that the circumferential seal rib 221 is axially abutted against the positioning step 33. The end cover 3 is connected with the cylinder body 1 through bolts, and the end cover 3 and the sealing washer 2 are pressed and positioned at the end face of the cylinder body 1.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a seal ring seal structure, includes cylinder body (1), seal ring (2) and end cover (3), be provided with shaft hole (31), its characterized in that on end cover (3): the sealing washer (2) comprises an outer layer sealing ring body (21), an inner layer sealing ring body (22) and a connecting rib (23) for connecting the outer layer sealing ring body (21) and the inner layer sealing ring body (22); a cylinder body sealing ring groove (11) is formed in the connecting end face of the cylinder body (1), and a cover body sealing ring groove (32) is formed in the connecting end face of the end cover (3); the cylinder body sealing ring groove (11) and the cover body sealing ring groove (32) form an accommodating cavity for accommodating the outer layer sealing ring body (21); the outer wall of the inner-layer sealing ring is attached to the inner wall of the shaft hole (31) and the inner wall of the cylinder body (1).

2. A sealing gasket sealing arrangement according to claim 1, wherein: the outer wall of the inner-layer sealing ring body (22) is provided with a plurality of circumferential sealing ribs (221).

3. A sealing gasket sealing arrangement according to claim 1, wherein: the two end surfaces of the outer sealing ring body (21) are respectively provided with a plurality of end face sealing ribs (211).

4. A sealing gasket sealing arrangement according to claim 1, wherein: and a positioning step (33) for axially positioning the circumferential sealing rib (221) is arranged on the inner wall of the shaft hole (31).

5. A sealing gasket sealing arrangement according to any one of claims 1 to 4, wherein: the end cover (3) is connected with the cylinder body (1) through bolts.