EGR (exhaust gas recirculation) gasket with single-layer structure

Abstract

The utility model discloses an EGR (Exhaust Gas Recirculation) gasket with a single-layer structure, which belongs to the technical field of automobile exhaust gas recirculation systems and is used for solving the technical problems of more gasket materials and high manufacturing cost in the prior art. The gasket comprises a gasket body provided with mounting holes at two ends; a clamping jaw is formed on the edge of the gasket body. The clamping jaw comprises a bending portion connected with the gasket body, the tail end of the bending portion is connected with a circuitous section, the opening of the circuitous section faces the outer side of the gasket body, the circuitous section is of a V-shaped structure, the gasket body is directly connected with the circuitous section of the V-shaped structure through the bending section, therefore, the structure of the clamping jaw is optimized, manufacturing materials are greatly reduced, and manufacturing cost is reduced. The beneficial effect of reducing the manufacturing cost is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust gas recirculation systems, in particular to an EGR gasket with a single-layer structure. Background Art

[0002] At present, EGR gaskets are used in automobile exhaust gas recirculation systems (EGR). Traditional EGR gaskets mainly include a gasket body. Mounting holes are provided at both ends of the gasket body for installing fasteners. The EGR gasket material is SUS301H. In order to prevent the gasket from falling off during installation, a claw design is added to the edge of the gasket body. The claw and the gasket body are integrally formed. This type of gasket material uses more, which increases the production cost. In addition, the length of the connecting section between the claw and the gasket body is long, and the structure is unreasonable, which further leads to the problem of excessive material consumption. Utility Model Content

[0003] The utility model aims to overcome the defects of the prior art, provide an EGR gasket with a single-layer structure, and solve the problem of using too much material in making the gasket.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The EGR gasket with a single-layer structure disclosed in the utility model comprises:

[0006] A gasket body with mounting holes at both ends;

[0007] The edge of the gasket body is formed with a claw;

[0008] The clamping claw comprises a bending portion connected to the gasket body and having an arc-shaped structure, and a terminal end of the bending portion is connected to a detour section with an opening facing the outside of the gasket body and having a V-shaped structure.

[0009] Furthermore, the two inclined side walls of the winding section are equal in length.

[0010] Furthermore, the angle between the two inclined side walls of the winding section is not less than 90°.

[0011] Furthermore, the angle between the inclined side wall connecting the detour section and the bending portion and the gasket body is not greater than 90°, and the end of the inclined side wall of the detour section away from the bending portion is a free end.

[0012] Furthermore, the claws are integrally formed on the edge of the gasket body.

[0013] Furthermore, the gasket body is made of stainless steel.

[0014] In the above technical solution, the EGR gasket with a single-layer structure provided by the utility model has the following beneficial effects:

[0015] Compared with the prior art, the single-layer EGR gasket provided by the utility model optimizes the claw structure. The gasket body is directly connected to the circuitous section of the V-shaped structure through the bending section, which shortens the claw length and changes the bending angle, effectively solving the problem of excessive material usage, thereby achieving the beneficial effect of reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a structural schematic diagram of a gasket in the prior art;

[0018] Figure 2 It is a schematic diagram of the overall structure of the single-layer EGR gasket disclosed in the utility model;

[0019] Figure 3 It is a top view of the EGR gasket with a single-layer structure disclosed in the utility model.

[0020] Description of reference numerals:

[0021] 1. Gasket body; 2. Bending portion; 3. Detour section; 4. First inclined side wall; 5. Second inclined side wall. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] See also Figure 2 As shown;

[0024] The utility model single-layer EGR gasket comprises: a gasket body 1;

[0025] Mounting holes are provided at both ends of the gasket body 1, and fasteners are installed through the mounting holes. A claw is formed on the edge of the gasket body 1, and the claw includes a bending portion 2 which is connected to the gasket body 1 and has an arc-shaped structure. The end of the bending portion 2 is connected to a detour section 3, and the detour section 3 opens toward the outside of the gasket body 1 and has a V-shaped structure. The gasket body 1 is directly connected to the detour section of the V-shaped structure through the bending section, which optimizes the claw structure and greatly reduces the manufacturing materials, thereby achieving the purpose of reducing the manufacturing cost.

[0026] Preferably, the two inclined side walls of the winding section 3 are equal in length.

[0027] Preferably, the angle between the two inclined side walls of the winding section 3 is not less than 90°.

[0028] Preferably, the angle between the inclined side wall connecting the detour section 3 and the bending portion 2 and the gasket body 1 is not greater than 90°, and the end of the inclined side wall of the detour section 3 away from the bending portion 2 is a free end.

[0029] Specifically, the inclined side wall of the detour section 3 includes a first inclined side wall 4 and a second inclined side wall 5 of equal length, the first inclined side wall 4 is connected to the bending portion 2, the end of the second inclined side wall 5 is a free end, the angle between the first inclined side wall 4 and the second inclined side wall 5 is not less than 90°, and the angle between the first inclined side wall 4 and the gasket body 1 is not greater than 90°.

[0030] Preferably, a claw is integrally formed on the edge of the gasket body 1 .

[0031] Preferably, the gasket body 1 is made of stainless steel, specifically SUS301H.

[0032] In the above technical scheme, the single-layer EGR gasket provided by the utility model optimizes the claw structure compared with the prior art. The gasket body of the gasket is directly connected to the detour section of the V-shaped structure through the bending section, which shortens the claw length and changes the bending angle, effectively solving the problem of excessive material use, thereby achieving the beneficial effect of reducing production costs.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Single-layer EGR gasket, including: A gasket body (1) with mounting holes at both ends; The gasket body (1) has claws formed on its edge, characterized in that: The clamping claw comprises a bending portion (2) connected to the gasket body (1) and having an arc-shaped structure, and the end of the bending portion (2) is connected to a detour section (3) with an opening facing the outside of the gasket body (1) and having a V-shaped structure.

2. The single-layer EGR gasket according to claim 1 is characterized in that ； The two inclined side walls of the detour section (3) are equal in length.

3. The single-layer EGR gasket according to claim 1 is characterized in that ； The angle between the two inclined side walls of the detour section (3) is not less than 90°.

4. The single-layer EGR gasket according to claim 3, characterized in that: The angle between the inclined side wall connecting the detour section (3) and the bent portion (2) and the gasket body (1) is not greater than 90°, and the end of the inclined side wall of the detour section (3) away from the bent portion (2) is a free end.

5. The single-layer EGR gasket according to any one of claims 1 to 4, characterized in that ； The clamping claw is integrally formed on the edge of the gasket body (1).

6. The single-layer EGR gasket according to claim 5, characterized in that ； The gasket body (1) is made of stainless steel.

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