Hinge structure of automobile engine cover

Abstract

The utility model discloses an automobile engine cover hinge structure, which comprises a hinge fixed part, a hinge movable part and a shaft pin, the hinge fixed part is irregular, the upper part of the hinge fixed part is provided with a shaft pin hole, one side of the hinge fixed part is provided with a vertical limiting tongue, and the front end of the limiting tongue is provided with a U-shaped limiting jaw; a shaft pin hole is formed in the upper end of the hinge movable part, a limiting matching surface is arranged on one side of the hinge movable part, and a limiting hole is formed in the limiting matching surface; the hinge fixed part and the hinge movable part are hinged through the shaft pin hole and the shaft pin, the limiting tongue is allowed to freely pass through the limiting hole in a normal state, and when a vehicle is violently collided, the limiting tongue is matched with the limiting hole and is limited through the limiting jaw. The relative position of the hinge and the engine cover can be adjusted, the hinge fixed part and the hinge movable part form a limiting structure through the limiting jaw, the hinge can be deformed through the collapsing opening, large displacement between the hinge movable part and the engine cover is prevented, and safety of pedestrians and drivers is guaranteed.

Description

Technical Field

[0001] The utility model relates to a hinge structure of an automobile engine cover and belongs to the technical field of automobile engine parts. Background Art

[0002] At present, the cabin of most car engines or motors is usually located at the front of the car, with a hood above the cabin to protect it. For easy opening, it is hinged to the car body. When pedestrians collide with the front of a vehicle, most accidents involve pedestrians colliding with the car and then with the hood, resulting in severe head injuries or even death. Traditional hinges do not have enough deformation space and there are hard points in the hinge area of ​​the hood, which can easily cause damage to pedestrians' heads when they collide with vehicles.

[0003] At present, most of the domestic automobile engine hood hinges adopt an arm structure. The automobile engine hood is connected to the body through a hinge and rotates around the hinge's axle pin to realize the opening and closing of the engine hood. The structure is relatively simple and the hinge cannot be limited in the front and rear directions of the vehicle. A strong frontal collision can easily cause the hinge's axle pin to fail, and the engine hood will invade the car, causing injury to the driver. More and more vehicles have abandoned the laborious manual engine hood support rod and adopted gas springs to pop up the engine hood. Arranging gas spring installation points separately on the engine hood will increase the cost of the whole vehicle. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a hinge structure of an automobile engine cover to ensure the safety of pedestrians and drivers in view of the defects of the prior art.

[0005] In order to solve this technical problem, the utility model provides a hinge structure of an automobile engine hood, comprising a hinge fixed part, a hinge movable part and an axle pin, wherein the hinge fixed part is irregular in shape, with an axle pin hole provided on its upper part, a vertical limit tongue provided on one side, and a U-shaped limit tiger's mouth provided on the front end of the limit tongue; the hinge movable part is also irregular in shape, with an axle pin hole provided on its upper end, a limit matching surface provided on one side, and a limit hole provided on the limit matching surface; the hinge fixed part and the hinge movable part are hinged through the axle pin hole and the axle pin, and under normal conditions, the limit hole allows the limit tongue to pass freely, and when the vehicle collides violently, the limit tongue cooperates with the limit hole and is limited by the limit tiger's mouth.

[0006] The bottom of the hinge fixing part is provided with two hinge fixing part assembly holes, and the hole diameter is 1.5 times the nominal diameter of the hinge fastening bolt; a vertical reinforcing rib is provided between the two hinge fixing part assembly holes.

[0007] The hinge movable part also includes a front U-shaped assembly hole, a rear end assembly hole and a pipeline fixing hole. The edge of the front U-shaped assembly hole is provided with a guide structure for the engine cover bolt to facilitate assembly; the pipeline fixing hole is used to fix the washing water pipe or wiring harness.

[0008] The hinge movable part also includes a ball pin, which is an upper mounting point of the gas spring and is used for mounting the gas spring.

[0009] The hinge movable part also includes a first collapse notch and a second collapse notch, wherein the second collapse notch is located at the rear and the first collapse notch is located at the front.

[0010] Beneficial effects: The utility model can adjust the relative position of the hinge and the engine cover. The limiting jaws enable the fixed part of the hinge and the movable part of the hinge to form a limiting structure. The collapse opening can cause the hinge to deform, preventing the movable part of the hinge and the engine cover from having a large displacement, thereby ensuring the safety of pedestrians and drivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the hinge fixing part of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the hinge movable part of the utility model;

[0013] Figure 3 The structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 4 The structure of the utility model is shown in FIG. Figure 2 .

[0015] In the figure: 1, hinge fixed part; 2, hinge movable part; 3, axle pin; 101, hinge fixed part assembly hole; 102, reinforcing rib; 103, limiting tongue; 1031, limiting tiger's mouth; 104, fixed part axle pin assembly hole; 201, front end U-shaped assembly hole; 2011, guide structure; 202, rear end assembly hole; 203, ball pin; 204, collapse notch 1; 205, pipeline fixing hole; 206, limiting mating surface; 207, limiting hole; 208, collapse notch 2; 209, ball pin assembly hole; 210, movable part axle pin assembly hole. DETAILED DESCRIPTION

[0016] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1-Figure 4As shown, the utility model provides a hinge structure of an automobile engine hood, comprising a hinge fixed part 1, a hinge movable part 2 and an axle pin 3, wherein the hinge fixed part 1 is irregular in shape, and an axle pin hole is provided on its upper part, and an upright limiting tongue 103 is provided on one side of the facade, and a U-shaped limiting jaw 1031 is provided at the front end of the limiting tongue 103, and a fixed part axle pin assembly hole 104 is provided on the other side of the facade; the hinge movable part 2 is also irregular in shape, and an axle pin hole is provided on its upper end, and a limiting matching surface 206 is provided on one side, and a limiting hole 207 is provided on the limiting matching surface 206, which has a certain distance from the limiting tongue 103; the hinge fixed part 1 and the hinge movable part 2 are hinged through the axle pin hole and the axle pin 3, and the limiting hole 207 allows the limiting tongue 103 to pass freely under normal conditions, and when the vehicle collides violently, the limiting tongue 103 cooperates with the limiting hole 207 and is limited by the limiting jaw 1031, which can effectively maintain the position of the entire engine hood.

[0018] The bottom of the hinge fixing part 1 is provided with two hinge fixing part assembly holes 101, and the hole diameter is 1.5 times the nominal diameter of the hinge fastening bolt, so as to adjust the position of the engine cover; a vertical reinforcing rib 102 is provided between the two hinge fixing part assembly holes 101 to enhance the overall rigidity.

[0019] The hinge movable part 2 also includes a front U-shaped assembly hole 201, a rear end assembly hole 202 and a pipeline fixing hole 205. The U-shaped assembly hole 201 and the rear end assembly hole 202 are used to pass bolts to fix the hinge to the engine cover; the edge of the front U-shaped assembly hole 201 is provided with a guide structure 2011 for the engine cover bolts to facilitate the assembly of the engine cover; the pipeline fixing hole 205 is used to fix the washing water pipe or wiring harness.

[0020] The vertical surface of the hinge movable part 2 is provided with a ball pin assembly hole 209, and the ball pin 203 is fixed by riveting. The ball pin 203 is the upper mounting point of the gas spring and is used to install the gas spring; the ball pin 203 is an optional component, which is convenient and flexible to adjust the configuration.

[0021] The hinge movable part 2 also includes a collapse notch 1 204, a collapse notch 208 and a movable part axle pin assembly hole 210, wherein the collapse notch 208 is located at the rear and the collapse notch 1 204 is located at the front; when a vehicle collides with a pedestrian, the collapse notch 1 204 causes the hinge to collapse and deform, thereby reducing damage to the pedestrian's head; the axle pin 3 passes through the fixed part axle pin assembly hole 104 and the movable part axle pin assembly hole 210, connecting the hinge fixed part 1 and the hinge movable part 2 together; the lower surface of the hinge movable part 2 is provided with a limit matching surface 206, and the limit matching surface 20 6 is provided with a limiting hole 207, which allows the limiting tongue 103 to pass freely with a certain margin; in normal driving state, the engine hood is closed with a certain distance, and when the vehicle collides with the front, the engine hood is stressed, and the collapse notch 208 is deformed, causing the limiting hole 207 located on the hinge movable part 2 to move toward the rear of the vehicle, and cooperate with the rear limiting tongue 103 installed on the chain fixing part 1 of the vehicle body, and limit the limit through the limiting jaws 1031, forming a locking structure, limiting the overall displacement of the engine hood within a certain range, thereby protecting the driver.

[0022] The utility model can adjust the relative position of the hinge and the engine hood, and the front end of the limiting tongue of the hinge fixed part is provided with a U-shaped limiting jaws, which forms a limiting structure with the hinge movable part to prevent the hinge movable part and the engine hood from having a large displacement, thereby ensuring the safety of the driver; the guiding structure of the engine hood bolt is convenient for the assembly of the engine hood; the crushing notch can cause the hinge to deform, and when the vehicle collides with a pedestrian, the front crushing notch can reduce the rigidity of the engine hood at the hinge, causing the hinge to crush and deform, thereby reducing damage to the pedestrian's head; when the vehicle collides strongly with the front, it will deform, and the rear crushing notch can cause the hinge movable part to move backwards, activate the limiting structure, and prevent the engine hood from having an uncontrollable displacement, thereby ensuring the safety of the driver.

[0023] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A hinge structure for an automobile engine cover, characterized in that: The invention comprises a hinge fixing part (1), a hinge movable part (2) and an axle pin (3). The hinge fixing part (1) is irregular in shape, and is provided with an axle pin hole at its upper part, and a vertical limiting tongue (103) is provided on one side, and a U-shaped limiting jaw (1031) is provided at the front end of the limiting tongue (103); the hinge movable part (2) is also irregular in shape, and is provided with an axle pin hole at its upper end, and is provided with a limiting matching surface (206) on one side, and a limiting hole (207) is provided on the limiting matching surface (206); the hinge fixing part (1) and the hinge movable part (2) are hingedly connected through the axle pin hole and the axle pin (3); under normal conditions, the limiting hole (207) allows the limiting tongue (103) to pass freely; when a vehicle collides violently, the limiting tongue (103) cooperates with the limiting hole (207) and is limited by the limiting jaw (1031).

2. The automobile engine hood hinge structure according to claim 1, characterized in that: The bottom of the hinge fixing part (1) is provided with two hinge fixing part assembly holes (101), the hole diameter of which is 1.5 times the nominal diameter of the hinge fastening bolt; a vertical reinforcing rib (102) is provided between the two hinge fixing part assembly holes (101).

3. The automobile engine hood hinge structure according to claim 1, characterized in that: The hinge movable part (2) further comprises a front U-shaped assembly hole (201), a rear assembly hole (202) and a pipeline fixing hole (205); the edge of the front U-shaped assembly hole (201) is provided with a guide structure (2011) for the engine cover bolts to facilitate assembly; the pipeline fixing hole (205) is used to fix a washing water pipe or a wiring harness.

4. The automobile engine hood hinge structure according to claim 1, characterized in that: The hinge movable part (2) also includes a ball stud (203), which is the upper mounting point of the gas spring and is used for mounting the gas spring.

5. The automobile engine hood hinge structure according to any one of claims 1 to 4, characterized in that: The hinge movable part (2) further comprises a first collapse notch (204) and a second collapse notch (208), wherein the second collapse notch (208) is located at the rear and the first collapse notch (204) is located at the front.

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