High-sealing cylinder gasket

Abstract

The utility model provides a high-sealing cylinder gasket, and belongs to the field of engine accessories. The problem that an existing cylinder gasket sealing structure is simple is solved. The high-sealing cylinder gasket comprises a cylinder gasket body and a plurality of cylinder holes located in the cylinder gasket body, inner rings are arranged on the inner circumferential walls of the cylinder holes in an attached mode, oil seal ring grooves are formed in the upper end faces of the inner rings, the oil seal ring grooves are filled with oil liquid, and a plurality of sealing columns extending and protruding upwards in the axial direction are sequentially arranged in the oil seal ring grooves at intervals. Sealing suction cups used for improving sealing strength are arranged at the upper ends of the sealing columns, the sealing suction cups are of a trumpet-shaped structure, the sealing suction cups and the sealing columns are of an integrally-formed structure, and the multiple sealing columns are matched with the inner wall structure of the oil seal annular groove to form a sealing gap for oil liquid to flow through. The sealing columns are sequentially distributed in the oil seal ring groove at intervals in the circumferential direction along the central axis of the inner ring, and the sealing columns and the inner ring are of an integrally-formed structure. The sealing structure has the advantage of high sealing performance.

Description

Technical Field

[0001] The utility model belongs to the field of engine accessories and relates to a cylinder gasket, in particular to a high-sealing cylinder gasket. Background Art

[0002] The cylinder gasket is located between the cylinder head and the cylinder block and is also called the cylinder bed. Its function is to fill the microscopic gap between the cylinder block and the cylinder head to ensure good sealing at the joint surface, thereby ensuring the sealing of the combustion chamber to prevent cylinder leakage and water jacket leakage.

[0003] However, the existing cylinder gasket structure is simple in design and is laid on the engine cylinder. It only relies on the cylinder gasket body for sealing, but the sealing strength is not high and the sealing effect is not long. The cylinder gasket needs to be replaced regularly, which seriously affects the replacement cost and service life. Summary of the invention

[0004] The utility model aims to provide a high-sealing cylinder gasket to solve the above problems in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A high-sealing cylinder gasket, comprising a cylinder gasket body and a plurality of cylinder holes located on the cylinder gasket body, characterized in that inner rings for improving compressive strength are arranged in close contact with each other on the inner circumferential walls of the cylinder holes, an oil seal ring groove for improving sealing strength is opened on the upper end surface of the inner ring, and the oil seal ring groove is filled with oil;

[0006] A plurality of sealing columns extending axially upward and protruding are sequentially arranged in the oil seal ring groove, and a sealing suction cup for improving the sealing strength is arranged at the upper end of each sealing column;

[0007] The sealing suction cup is arranged in a trumpet-shaped structure and is arranged as an integral structure with the sealing column;

[0008] A plurality of the sealing columns cooperate with the inner wall structure of the oil seal ring groove to form a sealing gap for oil flow, and the sealing columns are sequentially spaced and distributed in the oil seal ring groove in a circumferential direction along the central axis of the inner ring;

[0009] The sealing column and the inner ring are arranged as an integrally formed structure.

[0010] In the above-mentioned high-sealing cylinder gasket, an elastic portion capable of axial elastic contraction is provided between the sealing column and the sealing suction cup, and the sealing suction cup can realize axial elastic reset through the elastic portion and tightly abut against the cylinder.

[0011] In the above-mentioned high-sealing cylinder gasket, the sealing column and the sealing suction cup are both located in the oil seal ring groove, and the end of the sealing suction cup passes through the notch of the oil seal ring groove.

[0012] In the above-mentioned high-sealing cylinder gasket, the inner ring, the sealing column and the sealing suction cup are all made of fluororubber or fluororubber material.

[0013] Compared with the prior art, the high-sealing cylinder gasket structure is simple in design, and a sealing gap for oil flow is formed by the cooperation of an oil seal ring groove and a sealing column structure, which greatly improves the sealing strength of the cylinder gasket body, extends the service life of the cylinder gasket, and solves the problem of a single sealing structure. At the same time, a sealing suction cup structure is provided on the sealing column, and a sealing ring is formed by being abutted against and adsorbed on the cylinder, which can effectively perform multiple sealing on the cylinder hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the high-sealing cylinder gasket.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the sealing column and the sealing suction cup of the high-sealing cylinder gasket.

[0016] In the figure, 1. cylinder gasket body; 2. cylinder hole; 3. inner ring; 4. oil seal ring groove; 5. sealing column; 6. sealing suction cup; 7. elastic part. DETAILED DESCRIPTION

[0017] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0018] like Figure 1 , Figure 2 As shown, the high-sealing cylinder gasket comprises a cylinder gasket body 1 and a plurality of cylinder holes 2 located on the cylinder gasket body 1, inner rings 3 for improving compressive strength are arranged in close contact with the inner circumferential wall of the cylinder hole 2, an oil seal ring groove 4 for improving sealing strength is opened on the upper end surface of the inner ring 3, the oil seal ring groove 4 is filled with oil, a plurality of sealing columns 5 axially extending upwardly protruding are arranged in the oil seal ring groove 4 in sequence, and sealing suckers 6 for improving sealing strength are arranged at the upper ends of the sealing columns 5, the sealing suckers 6 are arranged in a trumpet-shaped structure, and are arranged as an integrally formed structure with the sealing column 5, and a plurality of sealing columns 5 and the oil seal ring groove 4 are connected. The inner wall structure cooperates to form a sealing gap for the oil supply liquid to circulate. The sealing columns 5 are distributed in the oil seal ring groove 4 in a circumferential direction along the central axis of the inner ring 3. The sealing columns 5 and the inner ring 3 are integrally formed. The structure is simple in design. The sealing gap for the oil supply liquid to circulate is formed by the cooperation of the oil seal ring groove 4 and the sealing columns 5. The sealing strength of the cylinder gasket body is greatly improved, the service life of the cylinder gasket is extended, and the problem of a single sealing structure is solved. At the same time, a sealing suction cup 6 structure is provided on the sealing column 5, and a sealing ring is formed by being abutted and adsorbed against the cylinder, which can effectively perform multiple sealing on the cylinder hole 2.

[0019] To elaborate further, in order to realize a multiple sealing structure, an elastic portion 7 capable of axial elastic contraction is provided between the sealing column 5 and the sealing suction cup 6. The sealing suction cup 6 can realize axial elastic reset through the elastic portion 7 and tightly abut against the cylinder.

[0020] Preferably, the sealing column 5 and the sealing suction cup 6 are both located in the oil seal ring groove 4 , and the end of the sealing suction cup 6 passes through the notch of the oil seal ring groove 4 .

[0021] Preferably, the inner ring 3, the sealing column 5 and the sealing suction cup 6 are all made of fluororubber, or fluororubber material. Fluorine rubber makes it highly resistant to oil and high temperature, and can effectively prevent oil leakage caused by oil corrosion and aging, thereby extending its service life. Fluorine rubber refers to a synthetic polymer elastomer containing fluorine atoms on the carbon atoms of the main chain or side chain.

[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0023] Although the terms such as cylinder gasket body 1, cylinder hole 2, inner ring 3, oil seal ring groove 4, sealing column 5, sealing sucker 6, elastic part 7 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A high-sealing cylinder gasket, comprising a cylinder gasket body (1) and a plurality of cylinder holes (2) located on the cylinder gasket body (1), characterized in that: An inner ring (3) for improving the compressive strength is arranged on the inner peripheral wall of the cylinder hole (2), and an oil seal ring groove (4) for improving the sealing strength is formed on the upper end surface of the inner ring (3), and the oil seal ring groove (4) is filled with oil; A plurality of sealing columns (5) extending axially upward and protruding are arranged in sequence in the oil seal ring groove (4), and a sealing suction cup (6) for improving the sealing strength is arranged at the upper end of each sealing column (5); The sealing suction cup (6) is arranged in a trumpet-shaped structure and is arranged in an integrally formed structure with the sealing column (5); A plurality of the sealing columns (5) cooperate with the inner wall structure of the oil seal ring groove (4) to form a sealing gap for oil liquid to flow, and the sealing columns (5) are distributed in the oil seal ring groove (4) in a circumferential direction along the central axis of the inner ring (3) at intervals in sequence; The sealing column (5) and the inner ring (3) are arranged as an integrally formed structure.

2. A high sealing cylinder gasket according to claim 1, characterized in that: An elastic portion (7) capable of axial elastic contraction is provided between the sealing column (5) and the sealing suction cup (6); the sealing suction cup (6) can achieve axial elastic reset through the elastic portion (7) and tightly abut against the cylinder.

3. A high sealing cylinder gasket according to claim 1, characterized in that: The sealing column (5) and the sealing suction cup (6) are both located in the oil seal ring groove (4), and the end of the sealing suction cup (6) passes through the notch of the oil seal ring groove (4).

4. A high sealing cylinder gasket according to claim 1, characterized in that: The inner ring (3), the sealing column (5) and the sealing suction cup (6) are all made of fluororubber or fluororubber material.

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