CN214946704U

CN214946704U - Special self-sealing bearing for valve

Info

Publication number: CN214946704U
Application number: CN202121281091.2U
Authority: CN
Inventors: 蔡春喜; 李冬
Original assignee: Tianjin Tanggu Water Seal Valve Co ltd
Current assignee: Tianjin Tanggu Water Seal Valve Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-11-30
Anticipated expiration: 2031-06-08

Abstract

The utility model provides a special self-sealing bearing for a valve, which is of an annular structure and consists of a framework and a rubber sealing element; the cross section of the rubber sealing element is formed by connecting an upper U-shaped structure and a lower U-shaped structure opposite to the upper U-shaped structure; annular grooves are formed in the inner side and the outer side of the lower end of the framework, and the upper U-shaped structure is vulcanized in the annular grooves of the framework. The utility model can be arranged at any position of the valve needing to be sealed, has wide application, and the upper U-shaped structure of the rubber sealing element can lead the rubber to be better vulcanized on the framework and tightly connected with the framework, thereby having good sealing effect; the lower U-shaped structure of lower extreme can be better realizes from sealedly, extrudeing self sealss bearing when the medium, makes the rubber deformation of lower extreme to reach self sealedly effect, it is sealed effectual.

Description

Special self-sealing bearing for valve

Technical Field

The utility model belongs to the technical field of the valve, in particular to special self sealss bearing of valve.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate by flowing or stopping a medium in a pipe or an apparatus. The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, check, flow splitting, overflow pressure relief and the like. The valve can be controlled by adopting various transmission modes, such as manual, electric, hydraulic, pneumatic, turbine, electromagnetic hydraulic, electrohydraulic, pneumatic hydraulic, spur gear, bevel gear drive and the like; the valve can be operated according to the preset requirement under the action of pressure, temperature or other forms of sensing signals, or can be simply opened or closed without depending on the sensing signals, and the valve can make the opening and closing piece perform lifting, sliding, swinging or rotating motion by depending on a driving or automatic mechanism, so that the size of the flow passage area of the valve can be changed to realize the control function of the valve.

At present, a bearing in the valve does not have a sealing structure, an O-shaped sealing ring is mostly adopted for sealing, the sealing effect is general, the sealing element is not tightly connected with the bearing, and the self-sealing effect is avoided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a special self-sealing bearing for a valve, which can be arranged at any position of the valve needing to be sealed, and has wide application, and the upper U-shaped structure of the rubber sealing element can better vulcanize rubber on a framework and is tightly connected with the framework; the lower U-shaped structure of lower extreme can be better realizes from sealedly, extrudeing self sealss bearing when the medium, makes the rubber deformation of lower extreme to reach self sealedly effect, it is sealed effectual.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a special self-sealing bearing for a valve, which is of an annular structure and consists of a framework and a rubber sealing element; the cross section of the rubber sealing element is formed by connecting an upper U-shaped structure and a lower U-shaped structure opposite to the upper U-shaped structure; the inner side and the outer side of the lower end of the framework are respectively provided with an annular groove, and the upper U-shaped structure is vulcanized in the annular groove of the framework and is tightly connected with the framework.

Preferably, the self-sealing bearing is sleeved on the valve shaft, and the valve shaft is connected with the valve body through the self-sealing bearing.

Preferably, the lower U-shaped structure is wider than the upper U-shaped structure, and the lower U-shaped structure is in interference fit with the valve shaft and the valve body.

Preferably, the upper U-shaped structure is longer than the lower U-shaped structure, and sealing between the self-sealing bearing and the valve shaft and between the self-sealing bearing and the valve body is well realized.

The utility model discloses following beneficial effect has:

the utility model provides a special self-sealing bearing for a valve, which is of an annular structure and consists of a framework and a rubber sealing element; the cross section of the rubber sealing element is formed by connecting an upper U-shaped structure and a lower U-shaped structure opposite to the upper U-shaped structure; the inner side and the outer side of the lower end of the framework are provided with grooves, and the upper U-shaped structure is vulcanized in the grooves of the framework. The utility model can be arranged at any position of the valve needing to be sealed, has wide application, and the upper U-shaped structure of the rubber sealing element can lead the rubber to be better vulcanized on the framework and tightly connected with the framework, thereby having good sealing effect; the lower U-shaped structure of lower extreme can be better realizes from sealedly, extrudeing self sealss bearing when the medium, makes the rubber deformation of lower extreme to reach self sealedly effect, it is sealed effectual.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural cross-sectional view of the valve shaft with a self-sealing bearing dedicated for a valve according to an embodiment of the present invention;

fig. 2 is a structural cross-sectional view of the special self-sealing bearing for the valve in the embodiment of the present invention;

fig. 3 is a top view of fig. 1.

Description of reference numerals:

1. self-sealing a bearing; 2. a valve body; 3. a valve shaft; 11. a framework; 12. an upper U-shaped structure; 13. a lower U-shaped structure.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment provides a special self-sealing bearing for a valve, as shown in fig. 1 to 3, the self-sealing bearing 1 is an annular structure and is composed of a framework 11 and a rubber sealing element; the cross section of the rubber sealing element is formed by connecting an upper U-shaped structure 12 and a lower U-shaped structure 13 opposite to the upper U-shaped structure 12; the inside and outside of the lower extreme of skeleton 11 all is equipped with annular groove, go up U-shaped structure 12 vulcanize in skeleton 11 in the annular groove, with skeleton 11 is connected closely. The principle is as follows: the medium extrudes the self-sealing bearing 1 to deform the rubber at the lower end of the rubber sealing piece, thereby achieving the self-sealing effect.

The self-sealing bearing 1 is sleeved on the valve shaft 3, and the valve shaft 3 is connected with the valve body 2 through the self-sealing bearing 1. The lower U-shaped structure 13 is wider than the upper U-shaped structure 12, and the lower U-shaped structure 13 is in interference fit with the valve shaft 3 and the valve body 2. The upper U-shaped structure 12 is longer than the lower U-shaped structure 13, and sealing between the self-sealing bearing 1 and the valve shaft 3 and between the self-sealing bearing and the valve body 2 is well realized.

According to the technical scheme, the special self-sealing bearing for the valve can be arranged at any position of the valve to be sealed, the application is wide, the embodiment is only one position, the rubber can be better vulcanized on the framework due to the upper U-shaped structure of the rubber sealing piece, the rubber is tightly connected with the framework, and the sealing effect is good; the lower U-shaped structure of lower extreme can be better realizes from sealedly, extrudeing self sealss bearing when the medium, makes the rubber deformation of lower extreme to reach self sealedly effect, it is sealed effectual.

The embodiments of the present invention have been described in detail through the embodiments, but the description is only exemplary of the embodiments of the present invention and should not be considered as limiting the scope of the embodiments of the present invention. The scope of protection of the embodiments of the present invention is defined by the claims. All utilize technical scheme of the embodiment of the utility model, or technical staff in the field is in the utility model discloses under embodiment technical scheme's the inspiration the utility model discloses in the essence and the protection scope of the embodiment, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change and improvement etc. that the application scope was made, all should still belong to within the protection scope is covered to the patent of the embodiment of the utility model.

Claims

1. The special self-sealing bearing for the valve is characterized in that the self-sealing bearing (1) is of an annular structure and consists of a framework (11) and a rubber sealing element; the cross section of the rubber sealing element is formed by connecting an upper U-shaped structure (12) and a lower U-shaped structure (13) opposite to the upper U-shaped structure (12); the inner side and the outer side of the lower end of the framework (11) are both provided with annular grooves, and the upper U-shaped structure (12) is vulcanized in the annular grooves of the framework (11).

2. The valve dedicated self-sealing bearing according to claim 1, wherein the self-sealing bearing (1) is sleeved on a valve shaft (3), and the valve shaft (3) is connected with the valve body (2) through the self-sealing bearing (1).

3. The valve dedicated self-sealing bearing according to claim 2, wherein the lower U-shaped structure (13) is wider than the upper U-shaped structure (12), and the lower U-shaped structure (13) is in interference fit with the valve shaft (3) and the valve body (2).

4. Valve-specific self-sealing bearing according to claim 3, wherein the upper U-shaped structure (12) is longer than the lower U-shaped structure (13).