CN216950603U

CN216950603U - Sealing structure of engine cylinder gasket

Info

Publication number: CN216950603U
Application number: CN202220773998.9U
Authority: CN
Inventors: 肖雷
Original assignee: YIYANG XILIU CYLINDER PAD CO Ltd
Current assignee: YIYANG XILIU CYLINDER PAD CO Ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-07-12
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses an engine cylinder gasket sealing structure which comprises a cylinder body and a cylinder cover arranged on the cylinder body, wherein the cylinder body and the cylinder cover are mutually matched, a mounting screw rod for locking is arranged between the cylinder body and the cylinder cover, a gasket body is arranged between the cylinder body and the cylinder cover, a sealing mechanism is arranged on the surface of the gasket body, the sealing mechanism comprises an upper stepped ring and a lower stepped ring which are fixedly connected to the surface of the gasket body, and the number of the upper stepped ring and the lower stepped ring is two. This engine cylinder gasket seal structure, through setting up the gasket body of notch cuttype to set up two at the surface of gasket body and go up the cascade ring and lower cascade ring, two second ring-shaped grooves of the lower bead of cascade ring card income cylinder cap are gone up to two, and inside two first ring channels of the upper bead of cylinder body are gone up to two lower cascade ring cards, then use the installation screw rod to connect the installation to cylinder block and cylinder cap, reach the purpose of leakproofness between reinforcing cylinder block and the cylinder cap.

Description

Sealing structure of engine cylinder gasket

Technical Field

The utility model relates to the technical field of engines, in particular to a cylinder gasket sealing structure of an engine.

Background

The cylinder gasket is positioned between the cylinder cover and the cylinder body, and is used for filling up microscopic pores between the cylinder body and the cylinder cover, ensuring that a joint surface has good sealing property, further ensuring the sealing of a combustion chamber and preventing the air leakage of the cylinder and the water leakage of a water jacket.

The existing cylinder gasket is of a plane structure, the sealing performance is easily influenced by installation conditions in the use process, and when the existing engine cylinder is subjected to detonation due to insufficient combustion and other reasons, the impact force inside the engine cylinder is increased suddenly, so that the sealing performance of the whole cylinder is greatly influenced.

Therefore, the utility model provides a cylinder gasket sealing structure of an engine.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a cylinder head gasket sealing structure of an engine to solve the problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an engine cylinder head gasket seal structure, includes cylinder block and the cylinder head of setting on the cylinder block, the mutual adaptation of cylinder block and cylinder head, and be provided with the installation screw rod that is used for locking between cylinder block and the cylinder head, be provided with the gasket body between cylinder block and the cylinder head, the surface of gasket body is provided with sealing mechanism, and sealing mechanism includes last cascade ring and lower cascade ring of fixed connection on gasket body surface, goes up the quantity of cascade ring and lower cascade ring and is two, and the last bead of cylinder block sets up the first annular spacing groove with lower cascade ring looks adaptation, and the second ring channel with last cascade ring looks adaptation is seted up to the lower bead of cylinder head, and the top of cylinder head is provided with buffer gear.

Preferably, the gasket body is stepped.

Preferably, the surface of the gasket body located outside the cylinder block and the cylinder head is fixedly connected with a protective edge.

Preferably, the number of the mounting screws is eight, and through holes for the mounting screws to pass through are formed in the surface of the gasket body.

Preferably, the buffer mechanism comprises a buffer blind pipe embedded on the surface of the cylinder cover, the inner wall of the buffer blind pipe is connected with a piston plate in a sliding mode, the piston plate is made of high-temperature-resistant and corrosion-resistant rubber, a supporting spring is fixedly connected to the top end of the buffer blind pipe, and the bottom end of the supporting spring is fixedly connected with the upper surface of the piston plate.

Preferably, the inner wall of the buffer blind pipe is fixedly connected with an upper limit ring and a lower limit ring which are used for limiting the piston plate respectively.

Advantageous effects

The utility model provides an engine cylinder gasket sealing structure which has the following beneficial effects:

1. this engine cylinder gasket seal structure, through setting up the gasket body of notch cuttype to set up two at the surface of gasket body and go up the cascade ring and lower cascade ring, two second ring-shaped grooves of the lower bead of cascade ring card income cylinder cap are gone up to two, and inside two first ring channels of the upper bead of cylinder body are gone up to two lower cascade ring cards, then use the installation screw rod to connect the installation to cylinder block and cylinder cap, reach the purpose of leakproofness between reinforcing cylinder block and the cylinder cap.

2. This engine cylinder gasket seal structure, enclose the edge through setting up the protection, can prevent that outside physical reason from causing the damage to the gasket body, through setting up buffer gear, when stewing, utilize down the spacing ring to carry on spacingly to the piston plate, when the sudden increase appears in cylinder internal pressure, the piston plate is slided on the inside of buffering blind pipe, the inside air of supporting spring and buffering blind pipe is compressed, reach the purpose that reduces the pressure and cushions the impact in the cylinder, do benefit to and protect the gasket body, maintain the leakproofness of whole engine cylinder gasket.

Drawings

FIG. 1 is a schematic view of a cutaway structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

In the figure: the structure comprises a cylinder body 1, a cylinder cover 2, a mounting screw rod 3, a gasket body 4, an upper stepped ring 5, a lower stepped ring 6, a protective surrounding edge 7, a through hole 8, a buffer blind pipe 9, a piston plate 10, a support spring 11, an upper limiting ring 12 and a lower limiting ring 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an engine cylinder gasket seal structure, includes cylinder block 1 and the cylinder head 2 of setting on cylinder block 1, the mutual adaptation of cylinder block 1 and cylinder head 2, and is provided with the installation screw rod 3 that is used for locking between cylinder block 1 and the cylinder head 2, is provided with gasket body 4 between cylinder block 1 and the cylinder head 2, and the quantity of installation screw rod 3 is eight, and the through-hole 8 that supplies installation screw rod 3 to pass is seted up on the surface of gasket body 4.

Gasket body 4 is the notch cuttype, and the fixed surface that gasket body 4 is located

cylinder block

1 and 2 outsides of cylinder head is connected with the protection and encloses edge 7, encloses edge 7 through setting up the protection, can prevent that outside physics reason from causing the damage to gasket body 4.

The surface of gasket body 4 is provided with sealing mechanism, and sealing mechanism includes last cascade ring 5 and lower cascade ring 6 of fixed connection on the surface of gasket body 4, goes up cascade ring 5 and the quantity of cascade ring 6 down and is two, and the last bead of cylinder block 1 offers the first annular spacing groove with 6 looks adaptations of lower cascade ring, and the second ring channel with last 5 looks adaptations of cascade ring is offered to the lower bead of cylinder head 2.

Through the gasket body 4 that sets up the notch cuttype to set up two and go up cascade ring 5 and cascade ring 6 down on the surface of gasket body 4, go up two second ring channels of cascade ring 5 card income bead under the cylinder head 2 for two, inside two first ring channels of bead on the cylinder block 1 are gone up to two lower cascade ring 6 cards, then use installation screw 3 to connect the installation to cylinder block 1 and cylinder head 2, reach the purpose of reinforcing leakproofness between cylinder block 1 and the cylinder head 2.

The top of cylinder head 2 is provided with buffer gear, buffer gear is including inlaying the buffering blind pipe 9 of establishing on cylinder head 2 surface, the inner wall sliding connection of buffering blind pipe 9 has piston plate 10, the preparation material of piston plate 10 is high temperature resistant corrosion-resistant rubber, the top fixedly connected with supporting spring 11 of buffering blind pipe 9, the bottom of supporting spring 11 is connected with the last fixed surface of piston plate 10, the inner wall difference fixedly connected with of buffering blind pipe 9 is used for carrying out spacing last spacing ring 12 and lower spacing ring 13 to piston plate 10's removal stroke.

Through setting up buffer gear, when stewing, utilize down spacing ring 13 to carry on spacingly to piston plate 10, when cylinder internal pressure appears suddenly increasing, piston plate 10 is slided on buffering blind pipe 9 is inside, and the inside air of supporting spring 11 and buffering blind pipe 9 is compressed, reaches the purpose that carries out the decompression buffering to the impact in the cylinder, does benefit to and protects gasket body 4, maintains the leakproofness of whole engine cylinder gasket.

The working principle is as follows: when the sealing structure of the engine cylinder gasket is used, the two upper step rings 5 are clamped into the two second annular grooves of the lower edge of the cylinder cover 2, the two lower step rings 6 are clamped into the two first annular grooves of the upper edge of the cylinder body 1, then the cylinder body 1 and the cylinder cover 2 are connected and installed by using the installation screw 3, the purpose of enhancing the sealing property between the cylinder body 1 and the cylinder cover 2 can be achieved by using the stepped gasket body 4 and the raised upper step rings 5 and lower step rings 6, the gasket body 4 can be prevented from being damaged by external physical reasons by using the protective edge 7, the piston plate 10 is limited by using the lower limiting ring 13 when the sealing structure is in a standing state, when the internal pressure of the cylinder is suddenly increased, the piston plate 10 slides upwards in the buffer blind pipe 9, the air in the supporting spring 11 and the buffer blind pipe 9 is compressed, and the purpose of decompressing and buffering the impact in the cylinder is achieved, the gasket body 4 is protected, and the sealing performance of the whole engine cylinder gasket is maintained.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an engine cylinder gasket seal structure, includes cylinder block (1) and cylinder head (2) of setting on cylinder block (1), cylinder block (1) and cylinder head (2) mutual adaptation, and is provided with between cylinder block (1) and cylinder head (2) and is used for locking mounting screw (3), its characterized in that: be provided with gasket body (4) between cylinder block (1) and cylinder head (2), the surface of gasket body (4) is provided with sealing mechanism, sealing mechanism includes last cascade ring (5) and lower cascade ring (6) of fixed connection on gasket body (4) surface, the quantity of going up cascade ring (5) and lower cascade ring (6) is two, the last bead of cylinder block (1) set up with the first annular spacing groove of lower cascade ring (6) looks adaptation, the second ring channel with last cascade ring (5) looks adaptation is seted up to the lower bead of cylinder head (2), the top of cylinder head (2) is provided with buffer gear.

2. The engine gasket sealing structure according to claim 1, wherein: the gasket body (4) is of a stepped type.

3. The engine head gasket sealing structure according to claim 1, wherein: the surface of the gasket body (4) positioned outside the cylinder body (1) and the cylinder cover (2) is fixedly connected with a protective surrounding edge (7).

4. The engine gasket sealing structure according to claim 1, wherein: the number of the mounting screws (3) is eight, and through holes (8) for the mounting screws (3) to pass through are formed in the surface of the gasket body (4).

5. The engine head gasket sealing structure according to claim 1, wherein: the buffer mechanism comprises a buffer blind pipe (9) embedded on the surface of the cylinder cover (2), the inner wall of the buffer blind pipe (9) is connected with a piston plate (10) in a sliding mode, the piston plate (10) is made of high-temperature-resistant and corrosion-resistant rubber, the top end of the buffer blind pipe (9) is fixedly connected with a supporting spring (11), and the bottom end of the supporting spring (11) is fixedly connected with the upper surface of the piston plate (10).

6. The engine head gasket sealing structure according to claim 5, wherein: the inner wall of the buffer blind pipe (9) is respectively and fixedly connected with an upper limiting ring (12) and a lower limiting ring (13) which are used for limiting the piston plate (10).