Engine cover with good sealing performance

Abstract

The utility model relates to the technical field of engine cover caps, in particular to an engine cover cap with good sealing performance, which comprises a cover cap main body arranged on an engine cylinder body, a mounting part horizontally extending from the outer periphery of the cover cap main body, and a connecting part horizontally extending from the outer periphery of the engine cylinder body and matched with the mounting part, a first sealing ring is arranged between the mounting part and the connecting part, an upper sealing edge horizontally extends on the outer periphery of the mounting part, a lower sealing edge horizontally extends on the outer periphery of the connecting part, and a second sealing ring is arranged between the upper sealing edge and the lower sealing edge; a sealing shell surrounding the joint of the upper sealing edge and the lower sealing edge is arranged on the outer surface of the upper sealing edge and the outer surface of the lower sealing edge, and a sealing gasket and a pressing assembly driving the sealing gasket to firmly abut against the side wall of the upper sealing edge and the side wall of the lower sealing edge are arranged in the sealing shell. And the engine works more stably.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine hoods, in particular to an engine hood with good sealing performance. Background Art

[0002] The automobile engine is the machine that provides power for the car and is the heart of the car. It affects the car's power, economy and environmental protection. The engine hood is a sealing component installed on the uppermost part of the engine cylinder, forming a covering seal for the engine cylinder. If the sealing performance between the engine hood and the engine cylinder is poor, oil and air leakage will occur, causing the engine to be unable to work stably. Therefore, designing an engine hood with good sealing performance is one of the problems that need to be solved urgently. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an engine cover with good sealing performance to prevent oil and gas leakage.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: an engine hood with good sealing performance comprises a hood main body arranged on an engine cylinder block, a mounting portion extending horizontally on the outer periphery of the hood main body, a connecting portion matching the mounting portion extending horizontally on the outer periphery of the engine cylinder block, a first sealing ring is arranged between the mounting portion and the connecting portion, an upper sealing edge extends horizontally on the outer periphery of the mounting portion, a lower sealing edge extends horizontally on the outer periphery of the connecting portion, a second sealing ring is arranged between the upper sealing edge and the lower sealing edge, a sealing shell is provided on the outer surfaces of the upper sealing edge and the lower sealing edge to surround the connection between the upper sealing edge and the lower sealing edge, a sealing gasket is arranged inside the sealing shell, and a clamping component that drives the sealing gasket to firmly contact the side walls of the upper sealing edge and the lower sealing edge.

[0005] Furthermore, the sealed shell includes a first shell, a second shell, a first connecting block, and a second connecting block. The first shell and the second shell are U-shaped structures and are symmetrically arranged. They cooperate with each other to form an enclosure around the connection between the upper sealing edge and the lower sealing edge. The first connecting block and the second connecting block are arranged at the connection between the first shell and the second shell and are fixedly connected by bolts.

[0006] Furthermore, the clamping assembly includes a pressure plate arranged inside the first shell and the second shell, guide blocks evenly arranged on the outer peripheral walls of the first shell and the second shell, and a clamping bolt threadedly connected to the guide block, one end of the clamping bolt passes through the guide block, the first shell, the second shell and contacts the pressure plate.

[0007] Furthermore, mounting holes are evenly formed on the mounting portion.

[0008] Furthermore, a spark plug insertion hole is provided on the cover body.

[0009] The beneficial effects of the utility model are:

[0010] The utility model cooperates with the upper sealing edge, the lower sealing edge, the second sealing ring, the sealing shell, the sealing gasket, and the pressing assembly. The pressing assembly applies a pressing force, so that the sealing gasket is firmly in contact with the outer side walls of the upper sealing edge and the lower sealing edge, forming a seal on the connection between the upper sealing edge and the lower sealing edge, and surrounding the connection by the sealing shell, further improving the sealing performance of the connection. The second sealing ring further seals the connection between the upper and lower sealing edges. From the outside to the inside, the sealing shell, the sealing gasket, the second sealing ring, and the first sealing ring form multiple seals, so that the sealing performance between the cover body and the engine cylinder block is better, the occurrence of oil and air leakage is prevented, and the operation of the engine is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description in conjunction with the accompanying drawings.

[0012] Figure 1 This is a front view of the cover body of the utility model.

[0013] Figure 2 This is the rear view of the cover body of the utility model.

[0014] Figure 3 It is the front view of the utility model.

[0015] Figure 4 This is a cross-sectional view of the first shell of the utility model.

[0016] Figure 5 This is a cross-sectional view of the sealing shell of the utility model.

[0017] Among them: 1. Engine cylinder block; 101. Connecting part; 102. Lower sealing edge; 2. Cover body; 201. Mounting part; 202. Upper sealing edge; 203. Mounting hole; 3. First sealing ring; 4. Second sealing ring; 5. Sealing shell; 501. First shell; 502. Second shell; 503. First connecting block; 504. Second connecting block; 6. Sealing gasket; Clamping assembly; 701. Pressure plate; 702. Guide block; 703. Clamping bolt; 8. Spark plug insertion hole. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Reference Figure 1-5As shown, the engine cover with good sealing performance includes a cover body 2 arranged on the engine cylinder block 1, a mounting portion 201 is horizontally extended from the outer periphery of the cover body 2, and mounting holes 203 are evenly opened on the mounting portion 201. A connecting portion 101 matching the mounting portion 201 is horizontally extended on the outer periphery of the engine cylinder block 1, and the mounting portion 201 is fixedly connected to the connecting portion 101 by bolts. A first sealing ring 3 is provided between the mounting portion 201 and the connecting portion 101, and a receiving groove is provided at the bottom end of the mounting portion 201 and the top end of the connecting portion 101. The first sealing ring 3 is located inside the receiving groove to form a sealing connection between the mounting portion 201 and the connecting portion 101. Seal, an upper sealing edge 202 extends horizontally on the outer periphery of the mounting portion 201, and a lower sealing edge 102 extends horizontally on the outer periphery of the connecting portion 101. When the mounting portion 201 is connected to the connecting portion 101, the upper sealing edge 202 is in contact with the lower sealing edge 102, and a second sealing ring 4 is provided between the upper sealing edge 202 and the lower sealing edge 102. A receiving groove is also provided on the bottom surface of the upper sealing edge 202 and the top surface of the lower sealing edge 102. The second sealing ring 4 is located inside the receiving groove to form a seal at the connection between the upper sealing edge 202 and the lower sealing edge 102, and cooperates with the first sealing ring 3 to form a double-layer seal from the outside to the inside, so that its sealing performance is better.

[0020] The outer surface of the upper sealing edge 202 and the lower sealing edge 102 is provided with a sealing shell 5 that surrounds the connection between the upper sealing edge 202 and the lower sealing edge 102. The sealing shell 5 includes a first shell 501, a second shell 502, a first connecting block 503, and a second connecting block 504. The first shell 501 and the second shell 502 are U-shaped structures and are symmetrically arranged. They cooperate with each other to surround the connection between the upper sealing edge 202 and the lower sealing edge 102. The first connecting block 503 and the second connecting block 504 are arranged at the connection between the first shell 501 and the second shell 502 and are fixedly connected by bolts. The first connecting block of the first shell 501 and The second connecting block 504 of the second shell 502 is fixedly connected by bolts, so that the first shell 501 and the second shell 502 are installed on the upper sealing edge 202 and the lower sealing edge 102. The first shell 501 and the second shell 502 surround the connection between the upper sealing edge 202 and the lower sealing edge 102, and further seal the connection. The top surface of the upper sealing edge 202 is in conflict with the top of the inside of the sealing shell 5, and the bottom surface of the lower sealing edge 102 is in conflict with the bottom of the inside of the sealing shell 5. The upper sealing edge 202 and the lower sealing edge 102 are limited by the sealing shell 5 so that they are always firmly in conflict with each other, thereby improving the sealing performance.

[0021] A sealing gasket 6 is provided inside the sealing housing 5, as well as a clamping assembly 7 that drives the sealing gasket 6 to firmly contact the side walls of the upper sealing edge 202 and the lower sealing edge 101. The sealing gasket 6 forms a seal on the connection between the outer side walls of the upper sealing edge 202 and the lower sealing edge 102, further increasing its sealing performance. Multiple seals are formed from the inside to the outside, so that the sealing performance between the cover body and the engine cylinder block is better, preventing the occurrence of oil and gas leakage, and making the engine work more stable. The clamping assembly 7 includes a pressure plate 701 provided inside the first housing 501 and the second housing 502, guide blocks 702 evenly provided on the outer peripheral walls of the first housing 501 and the second housing 502, and a clamping bolt threadedly connected to the guide block 702. 703, one end of the clamping bolt 703 passes through the guide block 702, the first shell 501, the second shell 502 and contacts the pressure plate 701, and by rotating the clamping bolts 703 on both sides of the sealing shell 5, the clamping bolts 703 approach the pressure plate 701 along the guide block 702, forming a pushing force on the pressure plate 701, so that the pressure plate 701 applies a clamping force to the sealing gasket 6, so that the two sides of the sealing gasket 6 are firmly in contact with the side walls of the upper sealing edge 202 and the lower sealing edge 102, and then the clamping bolts 703 at both ends of the sealing shell 5 are rotated again, so that the pressure plates 701 at both ends are firmly in contact with the sealing gasket 6, and a clamping force is applied, so that the sealing gasket 6 is firmly in contact with the connection between the upper sealing edge 202 and the lower sealing edge 102, so that its sealing performance is better.

[0022] The cover body 2 is provided with a spark plug insertion hole 8 for inserting the spark plug cylinder wire into the engine cylinder body inside.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An engine cover with good sealing performance, comprising a cover body (2) arranged on an engine cylinder block (1), a mounting portion (201) extending horizontally from an outer periphery of the cover body (2), a connecting portion (101) matching the mounting portion (201) extending horizontally from an outer periphery of the engine cylinder block (1), a first sealing ring (3) being arranged between the mounting portion (201) and the connecting portion (101), and characterized in that: An upper sealing edge (202) extends horizontally on the outer periphery of the mounting portion (201), a lower sealing edge (102) extends horizontally on the outer periphery of the connecting portion (101), a second sealing ring (4) is provided between the upper sealing edge (202) and the lower sealing edge (102), a sealing shell (5) is provided on the outer surfaces of the upper sealing edge (202) and the lower sealing edge (102) to surround the connection between the upper sealing edge (202) and the lower sealing edge (102), a sealing gasket (6) is provided inside the sealing shell (5), and a pressing assembly (7) is provided to drive the sealing gasket (6) to firmly contact the side walls of the upper sealing edge (202) and the lower sealing edge (102).

2. The engine cover with good sealing performance according to claim 1, characterized in that: The sealing shell (5) comprises a first shell (501), a second shell (502), a first connecting block (503), and a second connecting block (504); the first shell (501) and the second shell (502) are U-shaped and symmetrically arranged, and cooperate with each other to form an enclosure around the connection between the upper sealing edge (202) and the lower sealing edge (102); the first connecting block (503) and the second connecting block (504) are arranged at the connection between the first shell (501) and the second shell (502), and are fixedly connected by bolts.

3. The engine cover with good sealing performance according to claim 2, characterized in that: The clamping assembly (7) includes a pressure plate (701) arranged inside the first shell (501) and the second shell (502), guide blocks (702) evenly arranged on the outer peripheral walls of the first shell (501) and the second shell (502), and a clamping bolt (703) threadedly connected to the guide block (702), one end of the clamping bolt (703) passes through the guide block (702), the first shell (501), and the second shell (502) to contact the pressure plate (701).

4. The engine cover with good sealing performance according to claim 2, characterized in that: The mounting portion (201) is evenly provided with mounting holes (203).

5. The engine cover with good sealing performance according to claim 2, characterized in that: A spark plug insertion hole (8) is provided on the cover body (2).

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