CN214789032U

CN214789032U - Rubber metal insulating gasket

Info

Publication number: CN214789032U
Application number: CN202120605365.2U
Authority: CN
Inventors: 顾奕利
Original assignee: Leatou Sealing & Insulation Shanghai Co ltd
Current assignee: Leatou Sealing & Insulation Shanghai Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-19
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a rubber metal insulating pad piece, including the metal core, metal core fixedly connected with rubber seal, the inboard interference of metal core is connected with the fixture block, fixture block fixedly connected with rubber seal, the lip seal has been seted up to the rubber seal inboard, the surface of metal core and fixture block all sprays there is the enhancement layer, the coating of enhancement layer surface has insulating coating. The metal core, the rubber sealing ring and the reinforcing layer are matched to improve the overall strength and the sealing performance of the gasket; the insulating coating, the reinforcing layer and the rubber sealing ring are matched to improve the integral insulating property and the corrosion resistance of the gasket.

Description

Rubber metal insulating gasket

Technical Field

The utility model relates to a rubber metal insulating gasket specifically is rubber metal insulating gasket, belongs to rubber metal insulating gasket technical field.

Background

The gasket is a material made of paper, rubber or copper sheet, placed between two planes to enhance sealing, and a sealing element disposed between the static sealing surfaces to prevent fluid leakage. In process equipment in various fields, insulating sealing gaskets occupy an important position, and in some high-pressure flange connecting pipelines, in order to ensure the sealing performance of the gaskets, large bolt load needs to be applied.

The rubber metal insulating gasket of the prior art has the following disadvantages: 1. the conventional rubber gasket is low in strength and easy to damage under a large bolt load, and the rubber gasket is blown out by an internal high-pressure medium to cause leakage; 2. the metal gasket has no insulating function, and is easy to cause electrochemical corrosion, so that the gasket is damaged, and therefore, the problems are improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a rubber metal insulating gasket, and the metal core, the rubber sealing ring and the reinforcing layer are matched to improve the overall strength and the sealing performance of the gasket; the insulating coating, the reinforcing layer and the rubber sealing ring are matched to improve the integral insulating property and the corrosion resistance of the gasket.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a rubber metal insulating gasket, including the metal core, metal core fixedly connected with rubber seal, the inboard interference of metal core is connected with the fixture block, fixture block fixedly connected with rubber seal, it is sealed that the lip has been seted up to the rubber seal inboard, the surface of metal core and fixture block is all sprayed and is had the enhancement layer, the surface coating of enhancement layer has insulating coating.

Preferably, a clamping groove is formed in the outer side of the rubber sealing ring, and a clamping block is fixedly connected in the clamping groove.

Preferably, the material of the reinforcing layer is polyetherimide.

Preferably, the rubber seal ring is made of vulcanized rubber.

Preferably, the metal core and the fixture block are both made of 316L stainless steel.

The utility model has the advantages that:

1. the metal core, the rubber sealing ring and the reinforcing layer are matched to improve the overall strength and the sealing performance of the gasket; the metal core and the rubber sealing ring are combined to form a circular gasket, the metal core and the fixture block are both made of 316L stainless steel, the 316L stainless steel has high strength, enough strength is provided for the gasket to ensure that the gasket can bear large bolt load and cannot be blown out by internal media to form blow-out leakage, the outer surfaces of the metal core and the fixture block are coated with a reinforced layer made of polyetherimide, the reinforced layer has high rigidity, high strength and good impact resistance, the strength of the metal core can be further improved, the upper surface, the lower surface and the inner wall of the fixture block with small thickness in the metal core are covered with a layer of rubber sealing ring made of vulcanized rubber, the inner wall of the rubber sealing ring is provided with a lip seal which protrudes out of the surface of the gasket to form a convex sealing surface, the opening of the lip seal faces to the center of a circle, when the gasket is compressed, the lip-shaped protruding part of the rubber sealing ring can be compensated in a space reserved at the lip-shaped opening, prevent that the gasket from being destroyed, leave 1 mm's clearance simultaneously between rubber seal and the fixture block of keeping away from the metal core connection of centre of a circle, when the gasket was compressed, the part that rubber seal compressed can obtain the compensation in clearance department, prevent to produce and extrude destruction, and bellied metal core highly be less than rubber seal 0.5mm, make rubber seal can obtain sufficient compression volume, guarantee the sealing performance of gasket, and simultaneously, when bolt load was too big, rubber seal is compressed to when with bellied metal core parallel and level, unnecessary load can be absorbed by bellied metal core, thereby protection rubber seal is not crushed, the metal core, the holistic intensity and the sealing performance of gasket can be improved in enhancement layer and rubber cooperation, avoid its intensity lower to lead to leaking.

2. The insulating coating, the reinforcing layer and the rubber sealing ring are matched, so that the overall insulating property and the corrosion resistance of the gasket can be improved; metal core and fixture block surface spraying have the material to be the enhancement layer of polyetherimide, the enhancement layer has good electrical insulation performance, and the coating in the enhancement layer outside has insulating coating, insulating coating has higher insulating properties, can provide good insulating nature for the gasket is whole with the enhancement layer cooperation, and the rubber seal material that the metal core inboard bonded is vulcanized rubber, can guarantee the high bonding strength between rubber seal and the metal core, prevent that rubber seal from droing, inboard rubber seal can protect outside metal core not receive the corruption of corrosive medium to the parcel of metal core, and provide good insulating nature, prevent that the flange from forming electrochemical corrosion, accessible insulating coating, enhancement layer and rubber cooperation improve the whole insulating properties of gasket and corrosion protection ability, avoid its damage.

Drawings

FIG. 1 is a schematic cross-sectional perspective view of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic view of the surface structure of the metal core of the present invention.

In the figure: 1. a metal core; 2. a rubber seal ring; 3. a clamping block; 4. lip seal; 5. a card slot; 6. a reinforcing layer; 7. and (4) insulating coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a rubber metal insulating gasket includes a metal core 1, the metal core 1 is fixedly connected with a rubber seal ring 2, the inner side of the metal core 1 is connected with a fixture block 3 in an interference manner, the fixture block 3 is fixedly connected with the rubber seal ring 2, the inner side of the rubber seal ring 2 is provided with a lip seal 4, the outer surfaces of the metal core 1 and the fixture block 3 are both sprayed with a reinforcing layer 6, and the outer surface of the reinforcing layer 6 is coated with an insulating coating 7.

The example, metal core 1 bonds in rubber seal 2's the outside, 2 inner walls of rubber seal department process a lip seal 4, protrusion in the gasket surface, form bellied sealed face, lip seal's opening is towards the centre of a circle, rubber seal 2's material is vulcanized rubber, can guarantee the high bonding strength between rubber seal 2 and the metal core 1, prevent that rubber seal 2 from droing, rubber seal 2 leaves 1 mm's clearance with the fixture block of keeping away from the metal core 1 connection of centre of a circle, can compensate rubber seal, avoid it to extrude the damage.

As an optimal technical scheme of the utility model, draw-in groove 5 has been seted up in the 2 outsides of rubber seal, fixedly connected with fixture block 3 in draw-in groove 5.

In the example, the clamping groove 5 formed in the outer side of the rubber sealing ring 2 corresponds to the clamping block 3 in position, so that the clamping block 3 and the rubber sealing ring 2 can be conveniently connected and fixed.

As an optimized technical scheme of the utility model, the material of enhancement layer 6 is polyetherimide.

The material of the reinforcing layer 6 is polyetherimide, which has excellent mechanical property, electric insulation property, high and low temperature resistance and wear resistance, and can improve the strength and the insulation property of the metal core 1.

As an optimized technical scheme of the utility model, rubber seal 2's material is vulcanized rubber.

The rubber seal ring 2 is made of vulcanized rubber, which is vulcanized rubber and has the characteristics of non-stickiness, non-breaking property and the like.

As an optimized technical scheme of the utility model, the material of metal core 1 and fixture block 3 is 316L stainless steel.

In the example, the metal core 1 and the fixture block 3 are integrated, are made of high-strength metal materials and are not easy to damage due to high integral strength.

When the utility model is used, the metal core 1 and the rubber seal ring 2 are combined to form the annular gasket, the gasket is installed in a high-pressure flange connecting pipeline and is fixed and then put into use, the materials of the metal core 1 and the fixture block 3 are both 316L stainless steel, the 316L stainless steel has higher strength, enough strength is provided for the gasket to ensure that the gasket can bear larger bolt load and cannot be blown out by internal media to form blow-out leakage, the outer surfaces of the metal core 1 and the fixture block 3 are coated with the reinforced layer 6 made of polyetherimide, the reinforced layer 6 has high rigidity, high strength and better shock resistance, the strength of the metal core 1 can be further improved, the upper surface, the lower surface and the inner wall of the fixture block 3 with smaller thickness inside the metal core 1 are both covered with the rubber seal ring 2 made of vulcanized rubber, the inner wall of the rubber seal ring 2 is provided with the lip-shaped seal 4, the gasket is protruded out of the surface of the gasket to form a protruded sealing surface, the opening of the lip-shaped seal 4 faces to the circle center, when the gasket is compressed, the lip-shaped protrusion part of the rubber sealing ring 2 can be compensated in the space reserved at the lip-shaped opening after being compressed to prevent the gasket from being damaged, meanwhile, a 1mm gap is reserved between the rubber sealing ring 2 and a fixture block 3 connected with the metal core 1 far away from the circle center, when the gasket is compressed, the compressed part of the rubber sealing ring 2 can be compensated in the gap to prevent extrusion damage, and the height of the protruded metal core 1 is lower than 0.5mm of the rubber sealing ring, so that the rubber sealing ring 2 can obtain enough compression amount to ensure the sealing performance of the gasket, meanwhile, when the bolt load is overlarge, the rubber sealing ring 2 is compressed to be level with the protruded metal core 1, and the redundant load can be absorbed by the protruded metal core 1, thereby protection rubber seal 2 is not crushed by the pressure, metal core 1 and 3 surface spraying of fixture block have the material to be the enhancement layer 6 of polyetherimide, enhancement layer 6 has good electrical insulation performance, and the 6 outside coating in enhancement layer has insulating coating 7, insulating coating 7 has higher insulating properties, can cooperate for the whole good insulating nature that provides of gasket with enhancement layer 6, and the 2 materials of rubber seal of 1 inboard bonding of metal core are vulcanized rubber, can guarantee the high bonding strength between rubber seal 2 and the metal core 1, prevent that rubber seal 2 from droing, and inboard rubber seal 2 can protect outside metal core 1 not receive the corruption of corrosive medium to the parcel of metal core 1, and provide good insulating nature, prevent that the flange from forming electrochemical corrosion, avoid its damage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A rubber metal insulating gasket, includes metal core (1), its characterized in that: metal core (1) fixedly connected with rubber seal (2), the inboard interference of metal core (1) is connected with fixture block (3), fixture block (3) fixedly connected with rubber seal (2), lip seal (4) have been seted up to rubber seal (2) inboard, the surface of metal core (1) and fixture block (3) all sprays has enhancement layer (6), the surface coating of enhancement layer (6) has insulating coating (7).

2. A rubber-metal insulating gasket according to claim 1, wherein: the rubber seal ring (2) outside has been seted up draw-in groove (5), fixedly connected with fixture block (3) in draw-in groove (5).

3. A rubber-metal insulating gasket according to claim 1, wherein: the material of the reinforcing layer (6) is polyetherimide.

4. A rubber-metal insulating gasket according to claim 1, wherein: the rubber sealing ring (2) is made of vulcanized rubber.

5. A rubber-metal insulating gasket according to claim 1, wherein: the metal core (1) and the fixture block (3) are both made of 316L stainless steel.