CN216894663U

CN216894663U - Sealing gasket for automobile exhaust silencer

Info

Publication number: CN216894663U
Application number: CN202220504770.XU
Authority: CN
Inventors: 秦晓昌
Original assignee: Shanghai Rizhi Machinery Manufacturing Co ltd
Current assignee: Shanghai Rizhi Machinery Manufacturing Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-05
Anticipated expiration: 2032-03-08

Abstract

The utility model discloses a sealing gasket for an automobile exhaust muffler, which comprises a main body assembly and a sealing mechanism, wherein the main body assembly comprises a shell, a carbon steel gasket, a silica gel layer, a mounting hole, a connecting ring and a positioning ring; the sealing mechanism comprises a damping pad, a nitrile rubber ring, an air bag, a shaft lever, a spring and a sleeve; the bottom of the inner side wall of the shell is connected with a silica gel layer in a sliding mode, the upper surface of the silica gel layer is fixedly connected with a damping pad, and the outer side wall of the damping pad is fixedly connected with an air bag; according to the utility model, the heat resistance and heat insulation performance of the sealing gasket are improved through the fluorine-silicon rubber layer and the polyurethane heat insulation layer, the influence of high temperature on the sealing gasket is reduced, and when the sealing gasket needs to be disassembled, the shaft rod is driven by the compressed spring to extrude the shell, so that the carbon steel gasket is taken out from the shell, the operation steps during disassembly are simplified, and the working efficiency is improved.

Description

Sealing gasket for automobile exhaust silencer

Technical Field

The utility model relates to the technical field of automobile sealing gaskets, in particular to a sealing gasket for an automobile exhaust muffler.

Background

The exhaust muffler is one of parts in an automobile exhaust system, and has the function of reducing exhaust noise by gradually reducing exhaust pressure and attenuating pulsation of the exhaust pressure;

when the traditional sealing gasket for the exhaust silencer is used, the temperature inside the exhaust silencer is usually higher after the exhaust silencer is used for a long time, so that the sealing gasket is easy to soften under the influence of high temperature, the sealing effect is influenced, the sealing gasket is easy to adhere to a connecting piece of the exhaust silencer, the operation steps during disassembly are increased, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a gasket for an exhaust muffler of an automobile, which solves the problems of the background art mentioned above.

In order to achieve the purpose, the utility model provides the following technical scheme: a sealing gasket for an automobile exhaust muffler comprises a main body assembly and a sealing mechanism, wherein the main body assembly comprises a shell, a carbon steel gasket, a silica gel layer, a mounting hole, a connecting ring and a positioning ring;

the sealing mechanism comprises a damping cushion, a nitrile rubber ring, an air bag, a shaft lever, a spring and a sleeve;

the utility model discloses a damping device, including casing, damping pad, gasbag, inboard wall bottom sliding connection of casing has the silica gel layer, the last fixed surface on silica gel layer is connected with the damping pad, the lateral wall fixedly connected with gasbag of damping pad, one side fixedly connected with nitrile rubber ring that the damping pad was kept away from to the gasbag, the inside wall top sliding connection of casing has the carbon steel gasket, two sleeve pipes of the bottom symmetry fixedly connected with of carbon steel gasket, two the equal sliding connection of sheathed tube inside wall has the axostylus axostyle, two sheathed tube inside all is equipped with the spring.

Preferably, the upper surfaces of the damping pad and the nitrile rubber ring are fixedly connected to the lower surface of the fluorosilicone rubber layer, and the upper surface of the fluorosilicone rubber layer is fixedly connected with a polyurethane thermal insulation layer; the heat resistance of the sealing ring is improved through the arranged fluorine-silicon rubber layer.

Preferably, the upper surfaces of the silica gel layer, the damping pad, the fluorosilicone rubber layer and the polyurethane thermal insulation layer are all provided with connecting grooves, and the outer side wall of the sleeve is connected to the inner side walls of the connecting grooves in a sliding manner; the shell and the carbon steel gasket are fixedly installed by penetrating the connecting groove through bolts.

Preferably, the top of the shaft rod penetrates through the inner side wall of the sleeve and is fixedly connected with a guide sheet, and the outer side wall of the guide sheet is connected with the inner side wall of the sleeve in a sliding manner; the guide sheet guides the shaft lever by sliding in the sleeve.

Preferably, the top of the spring is fixedly connected to the top wall of the inner part of the sleeve, and the bottom of the spring is fixedly connected to the middle part of the upper surface of the guide sheet; the spring is driven to compress by the guide sheet.

Preferably, the outer side wall of the carbon steel gasket is symmetrically and fixedly connected with two positioning blocks, the upper surface of the shell is symmetrically provided with two positioning grooves, and the outer side wall of each positioning block is connected to the inner side wall of each positioning groove in a sliding manner; the carbon steel gasket is positioned by sliding the moving positioning block in the positioning groove.

Preferably, the upper surfaces of the shell and the carbon steel gasket are respectively provided with a mounting hole, the inner side wall of the damping pad is fixedly connected with a graphite ring, the inner side walls of the silica gel layer and the polyurethane thermal insulation layer are respectively fixedly connected with a connecting ring, the upper surface of the carbon steel gasket and the lower surface of the shell are respectively fixedly connected with a positioning ring, and the outer side wall of the connecting ring is slidably connected with the inner side wall of the positioning ring; the connecting ring slides in the positioning ring to guide the silica gel layer.

Preferably, a groove is formed in the outer side wall of the shell, and a heat conducting fin is fixedly connected to the inner side wall of the groove; the heat is absorbed by the heat-conductive fin seal gasket.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the heat resistance and the heat insulation performance of the sealing gasket are improved through the fluorine-silicon rubber layer and the polyurethane heat insulation layer, the influence of high temperature on the sealing gasket is reduced, and when the sealing gasket needs to be disassembled, the shaft rod is driven by the compressed spring to extrude the shell, so that the carbon steel gasket is taken out from the shell, the operation steps during disassembly are simplified, and the working efficiency is improved.

Drawings

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

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

FIG. 3 is a schematic longitudinal sectional view of the present invention;

fig. 4 is a schematic top view of the present invention.

In the figure: 1. a body assembly; 2. a sealing mechanism; 101. a housing; 102. a carbon steel shim; 103. a silica gel layer; 104. mounting holes; 105. a connecting ring; 106. a positioning ring; 201. a damping pad; 202. a nitrile rubber ring; 203. an air bag; 204. a shaft lever; 205. a spring; 206. a sleeve; 41. connecting grooves; 42. a graphite ring; 43. a groove; 44. a heat conductive sheet; 45. positioning a groove; 46. positioning blocks; 47. a fluorosilicone rubber layer; 48. a guide piece; 49. polyurethane thermal-protective coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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. 1-4, the present invention provides a technical solution: a gasket for an automobile exhaust muffler includes a main body assembly 1 and a seal mechanism 2;

the main body assembly 1 comprises a shell 101, a carbon steel gasket 102, a silica gel layer 103, a mounting hole 104, a connecting ring 105 and a positioning ring 106;

the sealing mechanism 2 comprises a damping pad 201, a nitrile rubber ring 202, an air bag 203, a shaft 204, a spring 205 and a sleeve 206;

the bottom of the inner side wall of the shell 101 is connected with a silica gel layer 103 in a sliding manner, the upper surface of the silica gel layer 103 is fixedly connected with a damping pad 201, the outer side wall of the damping pad 201 is fixedly connected with an air bag 203, one side, far away from the damping pad 201, of the air bag 203 is fixedly connected with a nitrile rubber ring 202, the top of the inner side wall of the shell 101 is connected with a carbon steel gasket 102 in a sliding manner, the bottom of the carbon steel gasket 102 is symmetrically and fixedly connected with two sleeves 206, the inner side walls of the two sleeves 206 are both connected with a shaft rod 204 in a sliding manner, and springs 205 are arranged inside the two sleeves 206; the upper surfaces of the damping pad 201 and the nitrile rubber ring 202 are fixedly connected to the lower surface of the fluorosilicone rubber layer 47, and the upper surface of the fluorosilicone rubber layer 47 is fixedly connected with a polyurethane thermal insulation layer 49; the heat resistance of the sealing ring is improved through the arranged fluorine-silicon rubber layer 47, and the heat insulation work of the sealing ring is improved through the arranged polyurethane heat insulation layer 49;

the upper surfaces of the silica gel layer 103, the damping pad 201, the fluorosilicone rubber layer 47 and the polyurethane thermal insulation layer 49 are all provided with a connecting groove 41, and the outer side wall of the sleeve 206 is connected to the inner side wall of the connecting groove 41 in a sliding manner; the shell 101 and the carbon steel gasket 102 are fixedly installed by penetrating the connecting groove 41 through a bolt; the top of the shaft 204 penetrates through the inner side wall of the sleeve 206 and is fixedly connected with the guide sheet 48, and the outer side wall of the guide sheet 48 is slidably connected with the inner side wall of the sleeve 206; the shaft 204 is guided by the guide tabs 48 by sliding within the sleeve 206; the top of the spring 205 is fixedly connected to the inner top wall of the sleeve 206, and the bottom of the spring 205 is fixedly connected to the middle part of the upper surface of the guide plate 48; the spring 205 is compressed by the guide sheet 48; the outer side wall of the carbon steel gasket 102 is symmetrically and fixedly connected with two positioning blocks 46, the upper surface of the shell 101 is symmetrically provided with two positioning grooves 45, and the outer side wall of each positioning block 46 is connected to the inner side wall of each positioning groove 45 in a sliding manner; the carbon steel gasket 102 is positioned by sliding the moving positioning block 46 in the positioning groove 45; mounting holes 104 are formed in the upper surfaces of the shell 101 and the carbon steel gasket 102, the inner side wall of the damping pad 201 is fixedly connected with a graphite ring 42, the inner side walls of the silica gel layer 103 and the polyurethane heat insulation layer 49 are fixedly connected with a connecting ring 105, the upper surface of the carbon steel gasket 102 and the lower surface of the shell 101 are fixedly connected with a positioning ring 106, and the outer side wall of the connecting ring 105 is connected to the inner side wall of the positioning ring 106 in a sliding mode; the silica gel layer 103 is guided by the sliding of the connecting ring 105 in the positioning ring 106; a groove 43 is formed in the outer side wall of the shell 101, and a heat-conducting fin 44 is fixedly connected to the inner side wall of the groove 43; the heat of the gasket is absorbed by the heat-conductive sheet 44 and then conducted to the outside, thereby reducing the influence of high temperature on the gasket.

The utility model is in operation: the connecting ring 105 is driven to move by moving the silica gel layer 103, the moving connecting ring 105 guides the silica gel layer 103 by sliding in the positioning ring 106, then the carbon steel gasket 102 is moved to drive the positioning block 46 and the sleeve 206 to move, the moving positioning block 46 positions the carbon steel gasket 102 by sliding in the positioning groove 45, the moving sleeve 206 drives the shaft rod 204 to be inserted into the connecting groove 41, the moving sleeve 206 is guided by the connecting groove 41, then the shell 101 and the carbon steel gasket 102 are installed on the exhaust muffler of the automobile by penetrating a bolt through the installation hole 104, then the bolt presses the carbon steel gasket 102 to drive the sleeve 206 and the polyurethane heat-insulating layer 49 to move, the moving sleeve 206 drives the shaft rod 204 to press the shell 101, then the guide sheet 48 is driven to move by the shaft rod 204 under the pressure, and the moving guide sheet 48 slides in the sleeve 206, the shaft rod 204 is guided, the moving guide sheet 48 drives the sleeve 206 to compress, the moving polyurethane thermal insulation layer 49 drives the fluorosilicone rubber layer 47 to move, the moving fluorosilicone rubber layer 47 extrudes the damping pad 201, the nitrile rubber ring 202 and the air bag 203, so that the damping pad 201 and the air bag 203 generate transverse deformation, the nitrile rubber ring 202 is driven to be attached to the inner side wall of the shell 101, the sealing effect between the shell 101 and the sealing pad is improved, the heat resistance of the sealing ring is improved through the arranged fluorosilicone rubber layer 47, the thermal insulation work of the sealing ring is increased through the arranged polyurethane thermal insulation layer 49, the influence of high temperature on the sealing ring is reduced, the service life of the sealing ring is prolonged, when the sealing ring needs to be disassembled, bolts in the mounting holes 104 are disassembled, and the compressed spring 205 drives the guide sheet 48 to move, the guide piece 48 of motion drives axostylus axostyle 204 and extrudees casing 101 to make carbon steel gasket 102 break away from in casing 101, and then simplified the operating procedure when dismantling, this device has not only increased sealed heat-resisting and heat-proof quality of filling up, has reduced the influence of high temperature to sealed the pad, makes sealed more convenient to carry out the dismantlement work moreover, has improved work efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 sealing gasket for an automobile exhaust muffler, comprising a main body assembly (1) and a sealing mechanism (2), characterized in that: the main body assembly (1) comprises a shell (101), a carbon steel gasket (102), a silica gel layer (103), a mounting hole (104), a connecting ring (105) and a positioning ring (106);

the sealing mechanism (2) comprises a damping cushion (201), a nitrile rubber ring (202), an air bag (203), a shaft rod (204), a spring (205) and a sleeve (206);

the utility model discloses a damping pad, including casing (101), inboard wall bottom sliding connection of casing (101) has silica gel layer (103), the last fixed surface of silica gel layer (103) is connected with damping pad (201), lateral wall fixedly connected with gasbag (203) of damping pad (201), one side fixedly connected with butyronitrile rubber ring (202) of damping pad (201) are kept away from in gasbag (203), the inside wall top sliding connection of casing (101) has carbon steel gasket (102), two sleeve pipes (206), two of the bottom symmetry fixedly connected with of carbon steel gasket (102) the equal sliding connection of inside wall of sleeve pipe (206) has axostylus axostyle (204), two the inside of sleeve pipe (206) all is equipped with spring (205).

2. The gasket for an automobile exhaust muffler according to claim 1, wherein: the upper surfaces of the damping pad (201) and the nitrile rubber ring (202) are fixedly connected to the lower surface of the fluorosilicone rubber layer (47), and the upper surface of the fluorosilicone rubber layer (47) is fixedly connected with a polyurethane thermal insulation layer (49).

3. The gasket for an automobile exhaust muffler according to claim 2, wherein: connecting groove (41) have all been seted up to the upper surface of silica gel layer (103), damping pad (201), fluorine silicon rubber layer (47) and polyurethane insulating layer (49), the lateral wall sliding connection of sleeve pipe (206) is in the inside wall of connecting groove (41).

4. The gasket for an automobile exhaust muffler according to claim 1, wherein: the top of the shaft rod (204) penetrates through the inner side wall of the sleeve (206) and is fixedly connected with the guide sheet (48), and the outer side wall of the guide sheet (48) is connected with the inner side wall of the sleeve (206) in a sliding mode.

5. The gasket for an automobile exhaust muffler according to claim 4, wherein: the top of the spring (205) is fixedly connected with the inner top wall of the sleeve (206), and the bottom of the spring (205) is fixedly connected with the middle part of the upper surface of the guide vane (48).

6. The gasket for an automobile exhaust muffler according to claim 1, wherein: the outer side wall of the carbon steel gasket (102) is symmetrically and fixedly connected with two positioning blocks (46), the upper surface of the shell (101) is symmetrically provided with two positioning grooves (45), and the outer side wall of each positioning block (46) is connected to the inner side wall of each positioning groove (45) in a sliding mode.

7. The gasket for an automobile exhaust muffler according to claim 2, wherein: mounting hole (104) have all been seted up to the upper surface of casing (101) and carbon steel gasket (102), inside wall fixedly connected with graphite ring (42) of damping pad (201), the equal fixedly connected with go-between (105) of inside wall of silica gel layer (103) and polyurethane insulating layer (49), the upper surface of carbon steel gasket (102) and the equal fixedly connected with holding ring (106) of lower surface of casing (101), the lateral wall sliding connection of go-between (105) is in the inside wall of holding ring (106).

8. The gasket for an automobile exhaust muffler according to claim 1, wherein: the outer side wall of the shell (101) is provided with a groove (43), and the inner side wall of the groove (43) is fixedly connected with a heat-conducting fin (44).