Three-junction-surface sealing modified cylinder gasket

Abstract

The utility model discloses a three-junction-surface sealing modified cylinder gasket, relates to the field of cylinder gaskets, and solves the problems that a gap exists between rubber and metal at the three-junction-surface position of an existing cylinder gasket and cannot be subjected to silk-screen coating, and in the cylinder gasket assembling process, in order to ensure the sealing of the gap position, the gap cannot be subjected to silk-screen coating. And silica gel needs to be coated on the upper and lower surfaces of the cylinder gasket to ensure sealing. According to the operation, rubber materials are wasted, and the whole engine assembling rhythm is affected. The cylinder gasket is technically characterized by comprising a cylinder gasket body, a plurality of cylinder holes are formed in the cylinder gasket body; a plurality of oil holes, water holes, bolt holes and positioning structures are arranged on the periphery of the cylinder hole, and the oil holes, the water holes, the bolt holes and the positioning structures are positioned on the cylinder gasket body; the cylinder gasket body comprises a gasket body, an upper surface layer, a lower surface layer and a sealing structure. And the assembling efficiency of the cylinder gasket is improved, the structure is relatively simple, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder gaskets, and particularly relates to a modified cylinder gasket with triple joint surface sealing. Background Art

[0002] A cylinder gasket, also known as a cylinder liner gasket, is located between the cylinder head and the cylinder block. Its function is to fill the microscopic pores between the cylinder block and the cylinder head, ensure good sealing at the joint surface, and thus ensure the sealing of the combustion chamber, prevent air leakage from the cylinder and water leakage from the water jacket. According to different materials, cylinder gaskets can be divided into various types such as metal-asbestos gaskets, metal-composite gaskets, and all-metal gaskets.

[0003] There is a gap between the rubber and the metal at the triple joint surface position of the existing cylinder gasket. This gap cannot be screen-printed and coated. During the assembly process of the cylinder gasket, in order to ensure the sealing of this gap position, silicone rubber needs to be coated on both the upper and lower surfaces of the cylinder gasket to ensure sealing. This operation not only wastes rubber materials but also affects the assembly rhythm of the entire engine. Therefore, in order to solve this problem, it is very necessary to design a modified cylinder gasket with triple joint surface sealing. Summary of the Utility Model

[0004] The utility model aims to solve the technical problem that there is a gap between the rubber and the metal at the triple joint surface position of the existing cylinder gasket in the prior art. This gap cannot be screen-printed and coated. During the assembly process of the cylinder gasket, in order to ensure the sealing of this gap position, silicone rubber needs to be coated on both the upper and lower surfaces of the cylinder gasket to ensure sealing. This operation not only wastes rubber materials but also affects the assembly rhythm of the entire engine, and provides a modified cylinder gasket with triple joint surface sealing.

[0005] In order to solve the above technical problems, the technical solution of the utility model is specifically as follows:

[0006] A modified cylinder gasket with triple joint surface sealing, comprising:

[0007] A cylinder gasket body;

[0008] A plurality of cylinder holes are provided on the cylinder gasket body;

[0009] A plurality of oil holes, water holes, bolt holes and positioning structures are provided around the cylinder holes, and the plurality of oil holes, water holes, bolt holes and positioning structures are located on the cylinder gasket body;

[0010] The cylinder gasket body includes: a gasket body, an upper surface layer, a lower surface layer and a sealing structure;

[0011] The upper surface layer is installed on the upper surface of the gasket body, the lower surface layer is installed on the lower surface of the gasket body, and the sealing structure is installed on the gasket body.

[0012] Preferably, the positioning structure includes: a plurality of positioning pin holes;

[0013] A plurality of the positioning pin holes are formed in the gasket body, and positioning holes matching the positioning pin holes on the gasket body are provided on the upper surface layer and the lower surface layer.

[0014] Preferably, the sealing structure includes: a first sealing layer, a second sealing layer, and a third sealing layer;

[0015] The first sealing layer is installed on the upper surface of the upper surface layer, the second sealing layer is installed on the lower surface of the lower surface layer, and the third sealing layer is installed on the side surface of the gasket body.

[0016] Preferably, the gasket body is a low-carbon steel gasket body.

[0017] Preferably, the first sealing layer is a rubber sealing layer.

[0018] Preferably, the second sealing layer is a rubber sealing layer.

[0019] Preferably, the third sealing layer is a rubber sealing layer.

[0020] Preferably, the third sealing layer protrudes from the gasket body by 0.4 mm - 0.6 mm.

[0021] The utility model has the following beneficial effects:

[0022] The improved cylinder gasket with triple joint surface sealing can achieve better sealing, which is very convenient, reduces unnecessary troubles. During the assembly process of the engine assembly line for the cylinder gasket, the gluing process is cancelled, reducing the customer's cost and improving the assembly efficiency of the cylinder gasket. The structure is relatively simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0024] Figure 1 is a schematic structural diagram of an improved cylinder gasket with triple joint surface sealing of the present utility model;

[0025] Figure 2 is a front view structural diagram of an improved cylinder gasket with triple joint surface sealing of the present utility model;

[0026] Figure 3 is a top view of an improved cylinder gasket with triple joint surface sealing of the present utility model;

[0027] Figure 4 is a partial schematic diagram of an improved cylinder gasket with triple joint surface sealing of the present utility model.

[0028] The reference numerals in the drawings are shown as:

[0029] Cylinder gasket body 10, positioning structure 20;

[0030] Gasket body 11, upper surface layer 12, lower surface layer 13, sealing structure 14;

[0031] First sealing layer 141, second sealing layer 142, third sealing layer 143. Specific implementation mode

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-4 , a modified cylinder gasket with triple joint surface sealing, comprising: a cylinder gasket body 10, a plurality of cylinder holes are provided on the cylinder gasket body 10, a plurality of oil holes, water holes, bolt holes and a positioning structure 20 are provided outside the cylinder holes, and the plurality of oil holes, water holes, bolt holes and the positioning structure 20 are located on the cylinder gasket body 10. The cylinder gasket body 10 includes: a gasket body 11, an upper surface layer 12, a lower surface layer 13 and a sealing structure 14. The upper surface layer 12 is installed on the upper surface of the gasket body 11, the lower surface layer 13 is installed on the lower surface of the gasket body 11, and the sealing structure 14 is installed on the gasket body 11.

[0034] The positioning structure 20 includes: a plurality of positioning pin holes, the plurality of positioning pin holes are opened on the gasket body 11, and positioning holes matching the positioning pin holes on the gasket body 11 are provided on the upper surface layer 12 and the lower surface layer 13.

[0035] The sealing structure 14 includes: a first sealing layer 141, a second sealing layer 142 and a third sealing layer 143. The first sealing layer 141 is installed on the upper surface of the upper surface layer 12, the second sealing layer 142 is installed on the lower surface of the lower surface layer 13, and the third sealing layer 143 is installed on the side surface of the gasket body 11.

[0036] The gasket body 11 is a low-carbon steel gasket body.

[0037] The first sealing layer 141 is a rubber sealing layer.

[0038] The second sealing layer 142 is a rubber sealing layer.

[0039] The third sealing layer 143 is a rubber sealing layer.

[0040] The third sealing layer 143 protrudes 0.4 mm - 0.6 mm from the gasket body 11.

[0041] Working principle:

[0042] The cylinder holes on the cylinder head gasket body 10 are for installation. The oil holes, water holes, bolt holes and positioning structure 20 around the cylinder holes are for installation and use. The sealing structure 14 on the cylinder head gasket body 10 is for sealing. The cylinder head gasket body 10 is limited by the positioning pin holes on the cylinder head gasket body 10 for installation. Thus, better sealing can be achieved through the first sealing layer 141, the second sealing layer 142 and the third sealing layer 143. The third sealing layer 143 protrudes from the cylinder block and cylinder head joint surface, ensuring that there is a rubber coating on the surface of the cylinder head gasket at the cylinder block and cylinder head compression position to achieve sealing at this position. The third sealing layer 143 is directly inserted into the sol tank of the front cover. During the assembly process of the engine assembly line for the cylinder head gasket, the gluing process is cancelled, reducing the customer's cost and improving the assembly efficiency of the cylinder head gasket. The gluing process during the whole machine assembly by the customer is cancelled, improving the assembly rhythm, which is very convenient.

[0043] Obviously, the above embodiments are merely examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A three-joint surface seal modified cylinder head gasket, characterized in that: include: Cylinder gasket body (10); The cylinder gasket body (10) is provided with a plurality of cylinder holes; A plurality of oil holes, water holes, bolt holes and positioning structures (20) are arranged on the periphery of the cylinder hole, and the plurality of oil holes, water holes, bolt holes and positioning structures (20) are located on the cylinder gasket body (10); The cylinder gasket body (10) comprises: a gasket body (11), an upper surface layer (12), a lower surface layer (13) and a sealing structure (14); The upper surface layer (12) is installed on the upper surface of the cushion body (11), the lower surface layer (13) is installed on the lower surface of the cushion body (11), and the sealing structure (14) is installed on the cushion body (11).

2. A three-joint surface seal modified cylinder gasket according to claim 1, characterized in that: The positioning structure (20) comprises: a plurality of positioning pin holes; A plurality of positioning pin holes are opened on the pad body (11), and positioning holes matching the positioning pin holes on the pad body (11) are provided on the upper surface layer (12) and the lower surface layer (13).

3. The three-joint surface seal modified cylinder gasket according to claim 1, characterized in that: The sealing structure (14) comprises: a first sealing layer (141), a second sealing layer (142) and a third sealing layer (143); The first sealing layer (141) is installed on the upper surface of the upper surface layer (12), the second sealing layer (142) is installed on the lower surface of the lower surface layer (13), and the third sealing layer (143) is installed on the side surface of the cushion body (11).

4. The three-joint surface seal modified cylinder gasket according to claim 1, characterized in that: The cushion body (11) is a low-carbon steel cushion body.

5. The three-joint surface seal modified cylinder gasket according to claim 3, characterized in that: The first sealing layer (141) is a rubber sealing layer.

6. The three-joint surface seal modified cylinder gasket according to claim 3, characterized in that: The second sealing layer (142) is a rubber sealing layer.

7. The three-joint surface seal modified cylinder gasket according to claim 3, characterized in that: The third sealing layer (143) is a rubber sealing layer.

8. The three-joint surface seal modified cylinder gasket according to claim 3, characterized in that: The third sealing layer (143) protrudes from the cushion body (11) by 0.4 mm to 0.6 mm.

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