CN216555321U

CN216555321U - Prestress sealing gasket

Info

Publication number: CN216555321U
Application number: CN202122887004.4U
Authority: CN
Inventors: 师文超
Original assignee: Suzhou Mingmeng Hardware Technology Co ltd
Current assignee: Suzhou Mingmeng Hardware Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-17
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a prestressed sealing gasket which comprises a gasket main body, a metal sheet, an extrusion sealing element and a protection ring sleeve, wherein the metal sheet is connected and arranged inside the gasket main body, fixing bolts are uniformly arranged inside the metal sheet, the metal sheet is respectively arranged at the top and the bottom of the gasket main body, and the metal sheet is fixedly connected and arranged with the inside of the gasket main body through the fixing bolts. According to the utility model, through accessories such as the metal sheet, the pressure relief groove, the fixing bolt and the like, the metal sheet is fixed with the gasket main body through the fixing bolt, the fixing hole and the fixing groove in a threaded connection mode, and the metal sheet is distributed at the middle position of the gasket main body and is close to the top and the bottom of the pressure relief groove, so that the pressure relief effect can be realized, the deformation problem caused by air pressure impact and extrusion at the edge position of the inner side of the pressure relief groove can be avoided while the pressure is relieved, and the protection effect on the position, close to the pressure relief groove, of the inner side of the gasket main body is effectively improved.

Description

Prestress sealing gasket

Technical Field

The utility model relates to the technical field of gaskets, in particular to a prestressed sealing gasket.

Background

The sealing gasket is a sealing spare part used for machines, equipment and pipelines as long as the fluid exists, and the sealing gasket is made of an inner part and an outer part and plays a role in sealing. The sealing gasket is made of metal or nonmetal plate-shaped material by cutting, stamping or cutting and is used for sealing connection between pipelines and sealing connection between machine parts of machine equipment. Can be divided into a metal sealing gasket and a non-metal sealing gasket according to the material. The metal gasket comprises a copper gasket, a stainless steel gasket, an iron gasket, an aluminum gasket and the like. Non-metal asbestos gaskets, non-asbestos gaskets, paper gaskets, rubber gaskets, and the like. The gasket sealing plays an important role in modern industrial enterprises, and the quality of the sealing is directly related to the continuity of production, the safety of property, energy conservation, environmental protection and physical and psychological health of people, so the development of the gasket is more and more valued by people. With the rise of modern industries, particularly modern petroleum, chemical industry, atomic energy industry and large-scale power stations, pressure vessels develop towards high temperature, high pressure, high vacuum, deep cooling, large scale and multiple series, new requirements are continuously provided for gasket sealing, various novel materials and novel structures continuously appear, and the sealing performance is also different. In addition, the fluctuation of pressure, the change of temperature, the lax of bolt pretightning force, the slope of flange, dislocation, the defect of sealed face, the corrosion of medium all can produce very big influence to sealed effect. Therefore, how to correctly select a proper sealing gasket according to working conditions and how to correctly install is the key point for ensuring the sealing effect.

The existing gasket still has a gap inside, so that the sealing performance is greatly reduced, and the practicability is lacked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a prestressed sealing gasket to solve the problems that the sealing performance is greatly reduced, the practicability is lacked and the like because gaps still exist inside the conventional gasket proposed in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prestressing force leakproofness gasket, includes gasket main part, sheetmetal, extrusion sealing member and protection snare, the internal connection of gasket main part is provided with the sheetmetal, the inside of sheetmetal evenly is provided with fixing bolt, the sheetmetal sets up respectively in gasket main part top and bottom position, the sheetmetal passes through fixing bolt and the inside fixed connection setting of gasket main part, the inside of gasket main part and the outside position connection that is close to the sheetmetal are provided with the extrusion sealing member, the extrusion sealing member belongs to swing joint with the gasket main part and sets up.

Preferably, the top and the bottom of the two ends of the gasket main body are provided with positioning grooves in a connecting manner, the top and the bottom of the inner part of the protective ring sleeve are provided with second movable grooves in a connecting manner, and two sides of the inner part of each second movable groove are provided with first sliding grooves in a connecting manner.

Preferably, the gasket main part is provided with the fixed slot near the internal connection at inboard both ends, the internal connection at sheetmetal both ends is provided with the fixed orifices, fixing bolt and fixed slot threaded connection realize sheetmetal and the inboard fixed connection in position of gasket main part.

Preferably, the inside of gasket main part and the bottom position connection that is close to extrusion sealing member are provided with first movable groove, the bottom fixedly connected with slide of extrusion sealing member, the slide activity sets up in first movable inslot portion position, the internal connection at slide both ends is provided with the slide bar, the slide belongs to sliding connection with the slide bar, and the slide bar is fixed to be set up in the both ends position of first movable inslot portion, the outside of slide bar and the top and the bottom position connection at slide both ends are provided with second compression spring, the bottom connection of slide is provided with third compression spring.

Preferably, the gasket body is internally provided with a pressure relief groove adjacent to the internal connection of the metal sheet.

Preferably, the outer part of the gasket main body is connected with a protective ring sleeve, and the protective ring sleeve is wrapped at the top and the bottom of the outer side part of the gasket main body.

Preferably, the inside of second activity groove and the inside that is close to the constant head tank are provided with the setting element, the bottom and second activity groove and the first spout of setting element belong to swing joint and set up, the setting element can realize sliding in second activity inslot portion along first spout.

Preferably, the bottom of the positioning piece is connected with a first compression spring, and the first compression spring is arranged in the second movable groove.

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

(1) according to the prestress sealing gasket, the metal sheet is fixed with the gasket main body through the threaded connection of the fixing bolt, the fixing hole and the fixing groove through accessories such as the metal sheet, the pressure relief groove and the fixing bolt, the metal sheet is distributed and arranged at the middle position of the gasket main body and close to the top and the bottom of the pressure relief groove, the pressure relief effect can be achieved, the deformation problem caused by air pressure impact and extrusion at the edge position of the inner side of the pressure relief groove can be avoided while pressure relief is achieved, and the protection effect on the position, close to the pressure relief groove, of the inner side of the gasket main body is effectively improved;

(2) according to the prestress sealing gasket, the protective ring sleeve can be directly sleeved at the outer edge position of the gasket main body through accessories such as the protective ring sleeve, the positioning piece and the first compression spring, the positioning piece can move in the second movable groove under the action of sliding connection with the first sliding groove, and can be automatically positioned to the inner position of the positioning groove under the action of matching with the first compression spring, so that the protective ring sleeve can be conveniently and fixedly connected with the gasket main body, the outer side of the gasket main body can be protected, and the service life of the gasket main body is prolonged;

(3) this kind of prestressing force leakproofness gasket, through at extrusion sealing member, the slide bar, accessories such as second compression spring and third compression spring, extrusion sealing member accessible slide and slide bar sliding connection and second compression spring and third compression spring are supplementary to be realized carrying out the automatic work of reciprocating of springing repeatability in first activity inslot portion, can fill through extrusion sealing member and junction device between the irregular department, avoid connecting the position not hard up phenomenon to appear, then reach and ensure sealed respond well effect.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the gasket body according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 5 is a schematic view of the internal structure of the gasket body and compression seal connection of the present invention.

In the figure: 1. a gasket body; 101. a pressure relief groove; 102. positioning a groove; 103. fixing grooves; 104. a first movable slot; 2. a metal sheet; 201. a fixing hole; 3. fixing the bolt; 4. extruding the seal; 401. a slide base; 5. a protective ring sleeve; 501. a second movable slot; 502. a first chute; 6. a positioning member; 7. a first compression spring; 8. a slide bar; 9. a second compression spring; 10. a third compression spring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a prestress sealing gasket comprises a gasket main body 1, a metal sheet 2, an extrusion sealing element 4 and a protection ring sleeve 5, wherein the metal sheet 2 is connected and arranged inside the gasket main body 1, fixing bolts 3 are uniformly arranged inside the metal sheet 2, the metal sheet 2 is respectively arranged at the top and the bottom of the gasket main body 1, and the metal sheet 2 is fixedly connected and arranged inside the gasket main body 1 through the fixing bolts 3;

the inside of gasket main part 1 just is provided with extrusion sealing member 4 near the outside position connection of sheetmetal 2, and extrusion sealing member 4 and gasket main part 1 belong to swing joint and set up.

The top and the bottom of the two ends of the gasket main body 1 are provided with positioning grooves 102 in a connecting manner, the top and the bottom of the inside of the protective ring sleeve 5 are provided with second movable grooves 501 in a connecting manner, the two sides of the inside of the second movable grooves 501 are provided with first sliding grooves 502 in a connecting manner, and the positioning piece 6, the second movable grooves 501 and the first sliding grooves 502 are arranged in a sliding connection manner.

The internal connection that gasket main part 1 is close to inboard both ends is provided with fixed slot 103, and the internal connection at sheetmetal 2 both ends is provided with fixed orifices 201, and fixing bolt 3 realizes sheetmetal 2 and the inboard fixed position of gasket main part 1 with fixed orifices 201 and fixed slot 103 threaded connection.

A first movable groove 104 is connected and arranged in the gasket main body 1 and at a position close to the bottom of the extrusion sealing element 4, a sliding seat 401 is fixedly connected to the bottom of the extrusion sealing element 4, and the sliding seat 401 is movably arranged in the first movable groove 104;

a sliding rod 8 is connected and arranged inside two ends of the sliding seat 401, and the sliding seat 401 and the sliding rod 8 are in sliding connection;

and the slide bar 8 is fixedly arranged at two ends inside the first movable groove 104, the second compression spring 9 is connected and arranged at the outer part of the slide bar 8 and the top and bottom positions at two ends of the slide carriage 401, the third compression spring 10 is connected and arranged at the bottom of the slide carriage 401, and the second compression spring 9 and the third compression spring 10 can assist the slide carriage 401 and the extrusion sealing element 4 to repeatedly slide up and down along the slide bar 8.

The inside of gasket main part 1 is close to the internal connection of sheetmetal 2 and is provided with pressure release groove 101, and pressure release groove 101 is used for the pressure release, reduces the problem that deformation appears in gasket main part 1.

The outer part of the gasket main body 1 is connected with a protective ring sleeve 5, and the protective ring sleeve 5 is wrapped at the top and the bottom of the outer side part of the gasket main body 1.

Positioning pieces 6 are arranged inside the second movable groove 501 and inside the second movable groove and near the positioning groove 102, a first compression spring 7 is connected to the bottom of each positioning piece 6, the first compression spring 7 is arranged in the second movable groove 501, and the positioning pieces 6 can repeatedly move inside the second movable groove 501 and the first sliding groove 502 due to the arrangement of the first compression spring 7, so that an automatic positioning effect is achieved;

the bottom of the positioning element 6, the second movable slot 501 and the first sliding slot 502 are movably connected, and the positioning element 6 can slide in the second movable slot 501 along the first sliding slot 502.

When the embodiment of the application is used: metal sheet 2 realizes fixing with gasket main body 1 through fixing bolt 3 and fixed orifices 201 and fixed slot 103 threaded connection, can play the pressure release effect, and can avoid the deformation problem that the side edge position in pressure release groove 101 caused because atmospheric pressure strikes and extrudees to appear in the pressure release, to the inboard guard action that is close to pressure release groove 101 position department of gasket main body 1, guard ring 5 can directly cup joint in gasket main body 1 outside edge position, setting element 6 can remove in second activity groove 501 inside through the effect with first spout 502 sliding connection, and cooperate the effect of first compression spring 7 can automatic positioning to constant head tank 102 inside position, then can be convenient for guard ring 5 conveniently carry out fixed connection with gasket main body 1, can protect the outside of gasket main body 1, extrusion sealing member 4 accessible slide 401 and slide bar 8 sliding connection and second compression spring 9 and third compression spring 10 assist and realize inside first activity groove 104 that the rebound resilience can be from oneself Move and reciprocate the work, can fill the irregular department between with the jointing equipment department through extrusion sealing member 4, avoid connecting the position and appear not hard up phenomenon, increase sealed effect.

Claims

1. The utility model provides a prestressing force leakproofness gasket, its characterized in that, includes gasket main part (1), sheetmetal (2), extrusion sealing member (4) and protection snare (5), the internal connection of gasket main part (1) is provided with sheetmetal (2), the inside of sheetmetal (2) evenly is provided with fixing bolt (3), sheetmetal (2) set up respectively in gasket main part (1) top and bottom position, sheetmetal (2) set up through fixing bolt (3) and the inside fixed connection of gasket main part (1), the inside of gasket main part (1) just is close to the outside position connection of sheetmetal (2) and is provided with extrusion sealing member (4), extrusion sealing member (4) and gasket main part (1) belong to swing joint and set up.

2. A prestressed sealing gasket according to claim 1, wherein: the gasket comprises a gasket body (1), wherein positioning grooves (102) are formed in the top and bottom positions of two ends of the gasket body in a connected mode, second movable grooves (501) are formed in the top and bottom of the inner portion of a protection ring sleeve (5) in a connected mode, and first sliding grooves (502) are formed in two sides of the inner portion of each second movable groove (501) in a connected mode.

3. A prestressed sealing gasket according to claim 1, wherein: the internal connection that gasket main part (1) is close to inboard both ends is provided with fixed slot (103), the internal connection at sheetmetal (2) both ends is provided with fixed orifices (201), fixing bolt (3) and fixed orifices (201) and fixed slot (103) threaded connection realize sheetmetal (2) and gasket main part (1) inboard position fixed connection.

4. A prestressed sealing gasket according to claim 3, wherein: the inside of gasket main part (1) and the bottom position connection that is close to extrusion sealing member (4) are provided with first movable groove (104), the bottom fixedly connected with slide (401) of extrusion sealing member (4), slide (401) activity sets up in first movable groove (104) internal position, the internal connection at slide (401) both ends is provided with slide bar (8), slide (401) belong to sliding connection with slide bar (8), and slide bar (8) are fixed to be set up in the inside both ends position in first movable groove (104), the outside of slide bar (8) and the top and the bottom position connection at slide (401) both ends are provided with second compression spring (9), the bottom connection of slide (401) is provided with third compression spring (10).

5. A prestressed sealing gasket according to claim 1, wherein: the gasket body (1) is internally provided with a pressure relief groove (101) close to the internal connection of the metal sheet (2).

6. A prestressed sealing gasket according to claim 1, wherein: the gasket is characterized in that a protective ring sleeve (5) is connected and arranged outside the gasket main body (1), and the protective ring sleeve (5) is wrapped at the top and the bottom of the outer side of the gasket main body (1).

7. A prestressed sealing gasket according to claim 2, wherein: locating part (6) is arranged inside the second movable groove (501) and inside the second movable groove close to the locating groove (102), the bottom of the locating part (6) is movably connected with the second movable groove (501) and the first sliding groove (502), and the locating part (6) can slide inside the second movable groove (501) along the first sliding groove (502).

8. A prestressed sealing gasket according to claim 7, wherein: the bottom of the positioning piece (6) is provided with a first compression spring (7) in a connecting mode, and the first compression spring (7) is arranged in the inner position of the second movable groove (501).