Engine valve chamber cover with high sealing performance

Abstract

The utility model relates to the technical field of engines, in particular to a high-sealing-performance engine valve chamber cover. Comprising a valve chamber body and a valve chamber cover and further comprises a sealing strip, grooves are formed in the sides, close to each other, of the valve chamber body and the valve chamber cover, each groove is of a T-shaped structure and comprises a horizontal part and a vertical part, and the sealing strip is of a cross-shaped structure. The sealing strip comprises a rubber hollow part used in cooperation with the horizontal part and a rubber solid part used in cooperation with the vertical part. The sealing performance of the joint of the valve chamber body and the valve chamber cover can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and particularly relates to a high-sealing engine valve cover. Background Technique

[0002] The sealing performance of the engine valve cover affects the normal operation, power performance, fuel efficiency and service life of the engine.

[0003] Between the valve chamber body and the valve cover on the market, they are sealed and connected through an interference-fit rubber sealing strip. After a period of use, due to the aging of the rubber, the sealing performance between the valve chamber body and the valve cover decreases, affecting the performance of the engine. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In order to solve the above problems of the prior art, the utility model provides a high-sealing engine valve cover, which can ensure the sealing performance at the connection between the valve chamber body and the valve cover.

[0006] (2) Technical Solutions

[0007] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0008] A high-sealing engine valve cover includes a valve chamber body and a valve cover, and also includes a sealing strip. Grooves are provided on both sides of the valve chamber body and the valve cover that are close to each other. The groove is of a T-shaped structure, and the groove includes a horizontal part and a vertical part. The sealing strip is of a cross-shaped structure, and the sealing strip includes a rubber hollow part that cooperates with the horizontal part and a rubber solid part that cooperates with the vertical part, which can ensure the sealing performance at the connection between the valve chamber body and the valve cover.

[0009] Preferably, the height of the rubber solid part is twice the height of the vertical part, and twice the height of the horizontal part is less than the height of the rubber hollow part.

[0010] Preferably, connection parts are provided on both the valve chamber body and the valve cover.

[0011] (3) Beneficial Effects

[0012] The utility model provides a high-sealing engine valve cover, which has the following beneficial effects:

[0013] (1) By using the cooperation of the cross-shaped sealing strip and the T-shaped groove, multi-segment sealing can be carried out at the connection between the valve chamber body and the valve cover, ensuring the sealing performance.

[0014] (2) When the valve chamber body and the valve chamber cover are installed, they will squeeze the rubber hollow part, further improving the sealing performance. Brief Description of the Drawings

[0015] Figure 1 It is a structural diagram of the present utility model;

[0016] Figure 2 It is a structural diagram of the valve chamber body of the present utility model;

[0017] Figure 3 It is a cross-sectional view of the connection structure between the valve chamber body and the valve chamber cover of the present utility model.

[0018] In the figure: 1. Valve chamber body; 2. Valve chamber cover; 3. Sealing strip; 4. Groove; 401. Horizontal part; 402. Vertical part; 301. Rubber hollow part; 302. Rubber solid part; 5. Connection part. Specific Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1 - 3 shown, the high-sealing engine valve chamber cover of this embodiment includes a valve chamber body 1 and a valve chamber cover 2, and further includes a sealing strip 3. Grooves 4 are provided on both sides of the valve chamber body 1 and the valve chamber cover 2 that are close to each other. The groove 4 is a T-shaped structure, and the groove 4 includes a horizontal part 401 and a vertical part 402. The sealing strip 3 is a cross-shaped structure, and the sealing strip 3 includes a rubber hollow part 301 that cooperates with the horizontal part 401 and a rubber solid part 302 that cooperates with the vertical part 402. It can seal multiple segments at the connection between the valve chamber body and the valve chamber cover.

[0021] Furthermore, the height of the rubber solid part 302 is twice the height of the vertical part 402, and twice the height of the horizontal part 401 is less than the height of the rubber hollow part 301.

[0022] Furthermore, connection parts 5 are provided on both the valve chamber body 1 and the valve chamber cover 2.

[0023] Working principle: The rubber solid part 302 on one side of the sealing strip 3 is inserted into the vertical part 402 of the groove 4 on the valve chamber body 1, and then the vertical part 402 of the groove 4 on the valve chamber cover 2 is inserted onto the rubber solid part 302 on the other side of the sealing strip 3. When the valve chamber body 1 and the valve chamber cover 2 are connected and fixed by the connecting part 5, the rubber hollow part 301 on the sealing strip 3 will be mutually extruded between the valve chamber body 1 and the valve chamber cover 2. The extruded rubber hollow part 301 can fill the gap existing after the connection of the valve chamber body 1 and the valve chamber cover 2. After installation, the valve chamber body 1 and the valve chamber cover 2 are sealed by three sections: the rubber hollow part 301 near the inner cavity of the valve chamber body 1, the rubber solid part 302, and the rubber hollow part 301 on the side far from the inner cavity of the valve chamber body 1, ensuring the sealing performance between the valve chamber body 1 and the valve chamber cover 2.

Claims

1. A highly sealed engine valve cover, comprising a valve chamber body (1) and a valve cover (2), characterized in that: It further includes a sealing strip (3). Grooves (4) are provided on both sides of the valve chamber body (1) and the valve chamber cover (2) that are close to each other. The groove (4) is of a T-shaped structure. The groove (4) includes a horizontal portion (401) and a vertical portion (402). The sealing strip (3) is of a cross-shaped structure. The sealing strip (3) includes a rubber hollow portion (301) that is used in cooperation with the horizontal portion (401) and a rubber solid portion (302) that is used in cooperation with the vertical portion (402).

2. The high-sealing engine valve cover according to claim 1, wherein: The height of the rubber solid portion (302) is twice the height of the vertical portion (402), and twice the height of the horizontal portion (401) is less than the height of the rubber hollow portion (301).

3. The high-sealing engine valve cover according to claim 1, characterized in that: Connection portions (5) are provided on both the valve chamber body (1) and the valve chamber cover (2).

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