Automobile engine sealing element

Abstract

The utility model discloses an automobile engine sealing element which comprises a gasket provided with a plurality of through holes, annular grooves are formed in the positions, close to the through holes, of the gasket, the annular grooves and the through holes are concentrically arranged, U-shaped sealing rings are clamped to the edges of the through holes, and the sealing rings are arranged in the annular grooves. An annular groove is formed in the inner wall of the through hole, a sealing ring is arranged in the annular groove, extending parts are formed at the two ends of the sealing ring and clamped in the annular groove, an annular protrusion is arranged in the sealing ring, a clamping groove matched with the annular protrusion is formed in the inner wall of the through hole, and the annular protrusion is clamped in the clamping groove; the sealing gasket solves the problems that in the prior art, a silica gel sealing ring on the sealing gasket is generally hot-pressed on the surface of the gasket through glue, the edge of the silica gel sealing ring is prone to degumming and upwarping after long-time use, and the sealing performance is affected.

Description

Technical Field

[0001] The utility model relates to a sealing component, in particular to a sealing component for an automobile engine. Background Art

[0002] Engine gaskets are important components used in engines to ensure sealing and prevent liquid leakage. For example, Chinese patent number CN208486955U provides an engine sealing gasket, including a gasket body; the gasket body is made of asbestos material and has a thin sheet structure; the thickness of the gasket body is 15-45μm; a cylinder hole and a stud hole are provided on the gasket body; a silicone sealing ring is provided on the edge of the gasket body, and the silicone sealing ring is hot-pressed on the gasket body; and a plurality of aramid fiber patches are embedded on the surface of the gasket body. For example, in the sealing gaskets in the above-mentioned prior art, the silicone sealing ring thereon is generally glued and hot-pressed on the gasket surface. After long-term use, the edge of the silicone sealing ring is prone to debonding and warping, affecting the sealing performance. Utility Model Content

[0003] The purpose of the utility model is to provide an automobile engine seal, which solves the problem that the silicone sealing ring on the sealing gasket in the prior art is generally glued and hot-pressed on the gasket surface. After long-term use, the edge of the silicone sealing ring is prone to debonding and warping, which affects the sealing performance.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an automobile engine seal, which includes a gasket provided with a plurality of through holes, an annular groove is provided in the gasket near the through hole, the annular groove is concentrically arranged with the through hole, a U-shaped sealing ring is engaged with the edge of the through hole, an extension is formed at both ends of the sealing ring, the extension is engaged with the annular groove, an annular protrusion is provided inside the sealing ring, and an engaging groove matching the annular protrusion is formed on the inner wall of the through hole, and the annular protrusion is engaged with the engaging groove.

[0005] Preferably, a plurality of grooves are formed around the surface of the gasket, and the grooves are communicated with the annular groove.

[0006] Preferably, the end of the U-shaped sealing ring forms a first arc surface structure.

[0007] Preferably, at least a portion of the extension portion is upwardly protruding to form a second arc surface structure, and the second arc surface structure is higher than the plane of the gasket.

[0008] Preferably, pressing sheets are respectively provided on both sides of the gasket, and the pressing sheets can cover the groove body.

[0009] Preferably, a plurality of holes are arranged around the through hole in the gasket, a plug connector is formed on the back of the pressing piece on one side, and a socket is formed on the back of the pressing piece on the other side, and the plug connector and the socket are engaged in the holes.

[0010] Beneficial effect: The utility model provides an automobile engine seal, which includes a gasket with multiple through holes, an annular groove is provided in the gasket near the through hole, the annular groove is concentrically arranged with the through hole, a U-shaped sealing ring is engaged with the edge of the through hole, and extensions are formed at both ends of the sealing ring, the extensions are engaged in the annular groove, an annular protrusion is provided inside the sealing ring, and a locking groove matching the annular protrusion is formed on the inner wall of the through hole, and the annular protrusion is engaged in the locking groove; the inside of the sealing ring here is engaged in the locking groove in the through hole through the annular protrusion, and the extensions at both ends are engaged in the annular groove on the outer edge of the through hole, which can effectively position the sealing ring and prevent the two ends from degumming and warping, thereby ensuring the sealing performance of the sealing ring during long-term use.

[0011] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 This is a structural diagram of the automobile engine seal provided by the utility model;

[0014] Figure 2 This is a cross-sectional view of the automobile engine seal provided by the utility model;

[0015] Figure 3 yes Figure 2 Enlarged view of part A;

[0016] Figure 4 This is a disassembled diagram of the automobile engine seal provided by the utility model.

[0017] Description of Reference Numerals

[0018] 1-gasket; 2-pressing sheet; 3-sealing ring; 4-through hole; 5-hole; 6-groove; 7-extension portion; 8-annular protrusion; 9-plug connector; 10-plug socket; 11-first arc surface structure; 12-second arc surface structure. DETAILED DESCRIPTION

[0019] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0020] like Figure 1-4 As shown: The utility model provides an automobile engine seal, which includes a gasket 1 provided with a plurality of through holes 4, an annular groove provided near the through hole 4 in the gasket 1, the annular groove being concentric with the through hole 4, a U-shaped sealing ring 3 being engaged with the edge of the through hole 4, an extension 7 being formed at both ends of the sealing ring 3, the extension 7 being engaged with the annular groove, an annular protrusion 8 being provided inside the sealing ring 3, an engaging groove matching the annular protrusion 8 being formed on the inner wall of the through hole 4, the annular protrusion 8 being engaged with the engaging groove. Here, the interior of the sealing ring is engaged with the engaging groove in the through hole through the annular protrusion, and the extensions at both ends are engaged with the annular groove on the outer edge of the through hole, which can effectively position the sealing ring and prevent the two ends from debonding and warping, thereby ensuring the sealing performance of the sealing ring during long-term use.

[0021] In a preferred embodiment of the present invention, in order to make the annular groove have a certain deformation ability so that the extension part of the sealing ring can be effectively engaged therein, a plurality of groove bodies 6 are formed around the surface of the gasket 1, and the groove bodies 6 are connected to the annular groove.

[0022] In a preferred embodiment of the present invention, in order to improve the sealing performance of the end of the sealing ring so that the sealing ring can effectively contact the components in the through hole, the end of the U-shaped sealing ring 3 forms a first arc surface structure 11.

[0023] In a preferred embodiment of the present invention, in order to improve the sealing performance of the end of the sealing ring, the extension portion 7 is at least partially convex upward to form a second arc surface structure 12, and the second arc surface structure 12 is higher than the plane of the gasket 1.

[0024] In a preferred embodiment of the present invention, in order to effectively press the extended portion of the sealing ring into the annular groove, pressing sheets 2 are provided on both sides of the gasket 1 , and the pressing sheets 2 can cover the groove body 6 .

[0025] In a preferred embodiment of the present invention, in order to enable the two pressing pieces to be effectively fixed on the surface of the gasket, a plurality of holes 5 are arranged around the through hole 4 in the gasket 1, a plug connector 9 is formed on the back side of the pressing piece 2 on one side, and a socket 10 is formed on the back side of the pressing piece 2 on the other side, and the plug connector 9 and the socket 10 are engaged in the holes 5.

[0026] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0028] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An automobile engine seal, characterized in that: The automobile engine seal comprises a gasket (1) provided with a plurality of through holes (4); an annular groove is provided in the gasket (1) near the through hole (4); the annular groove is concentrically arranged with the through hole (4); a U-shaped sealing ring (3) is engaged with the edge of the through hole (4); an extension portion (7) is formed at both ends of the sealing ring (3); the extension portion (7) is engaged in the annular groove; an annular protrusion (8) is provided inside the sealing ring (3); an engaging groove matched with the annular protrusion (8) is formed on the inner wall of the through hole (4); the annular protrusion (8) is engaged in the engaging groove.

2. The automobile engine seal according to claim 1, characterized in that: A plurality of grooves (6) are formed around the surface of the gasket (1), and the grooves (6) are connected to the annular groove.

3. The automobile engine seal according to claim 2, characterized in that: The end of the U-shaped sealing ring (3) forms a first arc surface structure (11).

4. The automobile engine seal according to claim 3, characterized in that: The extension portion (7) is at least partially convex upward to form a second arc surface structure (12), and the second arc surface structure (12) is higher than the plane of the gasket (1).

5. The automobile engine seal according to claim 4, characterized in that: Pressing sheets (2) are respectively provided on both sides of the gasket (1), and the pressing sheets (2) are capable of covering the trough body (6).

6. The automobile engine seal according to claim 5, characterized in that: A plurality of holes (5) are arranged around the gasket (1) near the through hole (4); a plug connector (9) is formed on the back of the pressing plate (2) on one side; a socket (10) is formed on the back of the pressing plate (2) on the other side; the plug connector (9) and the socket (10) are engaged in the holes (5).

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