CN218954295U

CN218954295U - Self-positioning asbestos-free aramid oil-resistant rubber gasket

Info

Publication number: CN218954295U
Application number: CN202223443995.8U
Authority: CN
Inventors: 彭国强; 彭晓斌; 于清花; 鄢雪梅
Original assignee: Yangzhong Binyang Special Gasket Packing Co ltd
Current assignee: Yangzhong Binyang Special Gasket Packing Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-02
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a self-positioning asbestos-free aramid oil-resistant rubber gasket; the utility model comprises a gasket, wherein arc-shaped sheets capable of generating elasticity are symmetrically arranged on the upper side and the lower side of the surface of the gasket and close to the inner ring, contact sheets are arranged at the elastic force generating ends of the surfaces of the arc-shaped sheets, the gasket and the contact sheets are made of asbestos-free aramid rubber, the surfaces of the arc-shaped sheets are wrapped by the asbestos-free aramid rubber, a supporting ring is arranged on the surface of the gasket close to the contact sheets, one side of the supporting ring, which is far away from the gasket, is in contact with the contact sheets, the operation can be realized by a single person, the whole body can be installed after being positioned from the inside, the installation precision is high, and because the side, which is far away from the arc-shaped sheets, of the contact sheets is triangular, fluid can be guided, the sealing thickness of a sealing part is increased through the contact sheets and the arc-shaped sheets, so that the whole service life is prolonged, and the whole body can be widely applied to sealing treatment of a pipeline joint.

Description

Self-positioning asbestos-free aramid oil-resistant rubber gasket

Technical Field

The utility model relates to a self-positioning asbestos-free aramid oil-resistant rubber gasket.

Background

The gasket is made of aramid fiber, inorganic non-glass fiber, special organic synthetic fiber, synthetic rubber and other environment-friendly sealing materials, has good heat resistance, medium resistance, excellent oil resistance, water resistance sealing performance and outstanding air tightness, can widely replace the compressed asbestos rubber material, meets the sealing requirements of most severe working conditions, is especially suitable for ship sealing requirements, is commonly used for sealing devices such as pipeline flanges, valves and the like, and is successfully applied to the ship industry for more than ten years at present.

Because the gasket is installed between two pipelines, when installing, generally, need many people to mutually support and install it, especially when the centre gripping, if the position causes the skew because of the mistake, very easily lead to the phenomenon that can not be fine formation sealed face pressure so appear water leakage between two flange faces to when long-time use, because hydrostatic pressure, blowout pressure and interior pressure etc. can appear the condition of inside concave deformation after the flange gasket works for a long time, can lead to flange gasket plane unevenness like this, reduce the leakproofness, therefore, need a kind of gasket that can self-align be convenient for install to sealed department has fine protective structure.

Disclosure of Invention

The utility model aims to provide a self-positioning asbestos-free aramid oil-resistant rubber gasket to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the novel elastic gasket comprises a gasket body, wherein arc-shaped sheets capable of generating elasticity are symmetrically arranged on the upper side and the lower side of the surface of the gasket body and close to the inner ring, and contact sheets are arranged at the elastic force generating ends of the surfaces of the arc-shaped sheets.

Preferably, the gasket and the contact piece are both made of asbestos-free aramid rubber, and the surface of the arc-shaped piece is wrapped with the asbestos-free aramid rubber.

Preferably, a supporting ring is arranged on the surface of the gasket close to the contact piece, and one side, away from the gasket, of the supporting ring is in contact with the contact piece.

Preferably, the surface of the support ring is provided with a notch.

Preferably, the fixed end of the surface of the gasket is provided with gasket holes in a circumferential array.

Preferably, the side of the contact piece far away from the arc-shaped piece is triangular.

Preferably, a reserved groove is arranged on the surface of the gasket at a position corresponding to the supporting ring.

Compared with the prior art, the utility model has the beneficial effects that:

when the pipeline connecting device is used, a gasket with corresponding size is selected, a contact piece on one side is inserted into a pipeline orifice, after the contact piece is inserted, the support ring is pressed hard, the support ring is disconnected at a notch, so that the limitation of the contact piece is eliminated, the arc piece is released, the contact piece is driven to be attached to the inner wall of the orifice under the action of elastic force of the arc piece, the positioning is completed under the action of the elastic force, the gasket hole and the orifice fixing hole are mutually overlapped through rotating the gasket, the gasket is loosened, the other pipeline orifice is inserted into the gasket according to the method, the gasket is fixed through a bolt, when the bolt is fixed, the lower half part of the support ring enters the reserved groove under the action of the pressing, the upper half part of the support ring is stored in the inner space of the arc piece under the action of the pressing, normal fixing is not affected, the operation can be realized by a single person as a whole, the installation is performed after the positioning is performed, the installation precision is high, the contact piece is far away from one side of the arc piece, the fluid can be guided, the sealing thickness of the sealing position is increased through the contact piece and the arc piece, and the whole service life is prolonged.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic overall cross-sectional view of an embodiment of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure of a support ring according to an embodiment of the utility model.

In the figure: 1. a gasket; 2. a spacer hole; 3. a contact piece; 4. an arc-shaped sheet; 5. a support ring; 6. a notch; 7. reserving a groove.

Detailed Description

In order to solve the problem conveniently, the embodiment of the utility model provides a self-positioning asbestos-free aramid oil-resistant rubber gasket. The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the embodiment provides a self-positioning asbestos-free aramid fiber oil-resistant rubber gasket, which comprises a gasket 1, wherein arc-shaped sheets 4 capable of generating elasticity are symmetrically arranged at the upper side and the lower side of the surface of the gasket 1 and close to the inner ring, and contact sheets 3 are arranged at the surface elasticity generating ends of the arc-shaped sheets 4.

Further, the gasket 1 and the contact piece 3 are both made of asbestos-free aramid rubber, and the surface of the arc-shaped piece 4 is wrapped with the asbestos-free aramid rubber; the asbestos-free aramid rubber has better heat resistance, medium resistance, excellent oil resistance, water resistance sealing performance and outstanding air tightness, can widely replace the compressed asbestos rubber material, and meets the sealing requirements of most severe working conditions, so that the whole can be better sealed when being contacted with fluid.

Further, a supporting ring 5 is arranged on the surface of the gasket 1 near the contact piece 3, and one side of the supporting ring 5 away from the gasket 1 is contacted with the contact piece 3; the contact piece 3 is extruded through the supporting ring 5, so that the arc-shaped piece 4 is limited and is not deformed.

Further, a notch 6 is formed in the surface of the support ring 5; the support ring 5 is easy to break when being extruded by the notch 6.

Further, the fixed end of the surface of the gasket 1 is provided with gasket holes 2 in a circumferential array; the gasket 1 is conveniently fixed through the gasket hole 2.

Further, the side, far away from the arc-shaped piece 4, of the contact piece 3 is triangular; this facilitates the guiding of the fluid, and reduces the impact of the fluid on the whole due to the blocking, thereby deteriorating the sealing performance of the whole for a long time.

Further, a reserved groove 7 is formed in the surface of the gasket 1 at a position corresponding to the supporting ring 5; the broken support ring 5 is placed through the reserved groove 7, so that normal fixation cannot be affected.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-positioning asbestos-free aramid oil-resistant rubber gasket is characterized in that: the novel elastic gasket comprises a gasket body (1), wherein arc-shaped sheets (4) capable of generating elastic force are symmetrically arranged on the upper side and the lower side of the surface of the gasket body (1) and close to the inner ring, and contact sheets (3) are arranged at the elastic force generating ends of the surfaces of the arc-shaped sheets (4).

2. The self-positioning asbestos-free aramid oil-resistant rubber gasket of claim 1, wherein: the gasket (1) and the contact piece (3) are both made of asbestos-free aramid rubber, and the surface of the arc-shaped piece (4) is wrapped with the asbestos-free aramid rubber.

3. The self-positioning asbestos-free aramid oil-resistant rubber gasket of claim 1, wherein: the surface of the gasket (1) is provided with a supporting ring (5) close to the contact piece (3), and one side, far away from the gasket (1), of the supporting ring (5) is in contact with the contact piece (3).

4. A self-positioning asbestos-free aramid oil-resistant rubber gasket according to claim 3, wherein: the surface of the support ring (5) is provided with a notch (6).

5. The self-positioning asbestos-free aramid oil-resistant rubber gasket of claim 1, wherein: the fixed end of the surface of the gasket (1) is provided with gasket holes (2) in a circumferential array.

6. The self-positioning asbestos-free aramid oil-resistant rubber gasket of claim 1, wherein: the side, far away from the arc-shaped piece (4), of the contact piece (3) is triangular.

7. The self-positioning asbestos-free aramid oil-resistant rubber gasket of claim 1, wherein: the surface of the gasket (1) and the corresponding position of the supporting ring (5) are provided with reserved grooves (7).