A front hood hinge

Abstract

The utility model discloses a kind of automobile front cover hinges, including pedestal, rotating part, connecting piece and limiting assembly, the rotating part one end is pivotally connected with pedestal, the other end is equipped with sliding slot, connecting piece is slidably connected with sliding slot by positioning member, the connecting piece is rotatably connected with rotating part by positioning member, the limiting assembly is set on the extension of rotating part, limiting assembly includes limiting plate, elastic member and locking member, limiting plate is set in the accommodating groove of extension, elastic member is sleeved on locking member and respectively abuts against limiting plate and accommodating groove, to provide elastic force for limiting plate, the locking member is locked in rotating part by limiting plate, when initial state, connecting piece presses the side of limiting plate, so that elastic member is compressed;When collision state, the push top of limiting plate rotates to abut against connecting piece. The utility model can limit connecting piece after collision, avoid its reset to cause front cover reset, triggering device uses mechanical pushing mode, and reliability is better.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a car front cover hinge. Background Technology

[0002] With the development of the automotive industry and the increasing awareness of road traffic safety, pedestrian protection has become one of the core indicators of vehicle safety design. In a head-on collision between a vehicle and a pedestrian, the pedestrian's head, chest, and other critical areas are prone to rigid contact with the vehicle's hood, easily causing serious injury. To mitigate injury, existing technology provides hinges with pedestrian protection functions. These hinges can move during a collision, causing the hood to spring up and provide cushioning. However, with existing hinges, after the hood springs up, the hinge is prone to returning to its original position due to external force after the collision, potentially causing the hood to shift and creating a safety risk. Utility Model Content

[0003] The purpose of this invention is to solve the technical problem of resetting the hinge after a collision.

[0004] To achieve the objectives of this utility model, the following technical solution is adopted:

[0005] A car front hood hinge includes a base, a rotating component, a connecting component, and a limiting assembly. One end of the rotating component is pivotally connected to the base, and the other end is provided with a sliding groove. The connecting component is slidably connected to the sliding groove via a positioning component, and the connecting component is rotatably connected to the rotating component via the positioning component. The limiting assembly is disposed on an extension of the rotating component and includes a limiting plate, an elastic element, and a locking element. The limiting plate is disposed in a receiving groove of the extension. The elastic element is sleeved on the locking element and abuts against the limiting plate and the receiving groove respectively, so as to provide elastic force to the limiting plate. The locking element passes through the limiting plate and locks itself to the rotating component. In the initial state, the connecting component presses against the side of the limiting plate, compressing the elastic element. In the collision state, the push top of the limiting plate rotates to abut against the connecting component.

[0006] In some embodiments, the rotating member and the connecting member are connected by a fixing component, and the car hood hinge also includes a triggering device for breaking the fixing component in the event of a collision, causing the rotating member and the connecting member to move relative to each other.

[0007] In some embodiments, the triggering device includes a push rod, which is correspondingly disposed with a connector.

[0008] In some embodiments, the rotating member has a groove, the push rod corresponds to the groove, and the connecting member is provided with a horizontal plate located on the moving path of the push rod.

[0009] In some embodiments, the connector has a longitudinal plate perpendicular to the transverse plate, the longitudinal plate being connected to a groove via a positioning element.

[0010] In some embodiments, the fixing assembly includes a fixing head and a mating member. The fixing head has a plurality of spaced elastic portions. The inner wall of the elastic portions is threadedly connected to the mating member, so that the elastic portions expand outward to press the rotating member and the connecting member.

[0011] In some embodiments, the base has a mounting arm with bent portions on both sides and a notch between the bent portions. The notch is located around the mounting hole. One end of the rotating member is rotatably connected to the mounting arm via a shaft. The rotating member is provided with a baffle located in the notch.

[0012] In some embodiments, an arc-shaped baffle is provided on one side of the extension, and a limiting plate has a protrusion disposed opposite to the arc-shaped baffle. The two ends of the elastic member are respectively connected to the arc-shaped baffle and the protrusion.

[0013] In some embodiments, the push top is arc-shaped, the slide groove is a straight groove, and the direction of the slide groove is consistent with the direction of the front cover.

[0014] In some embodiments, the connector is connected to the front cover, and the base is connected to the vehicle body.

[0015] The automotive front hood hinge provided by this utility model has the following advantages:

[0016] This invention employs a limiting component to limit the hinge to the connecting part after a collision, preventing it from resetting and causing the front cover to reset; in addition, the triggering device adopts a mechanical pushing method, which has good reliability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a car front hood hinge provided in an embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of a car front hood hinge in its initial state, provided by an embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of a car front hood hinge in a collision state, provided by an embodiment of this utility model.

[0021] Figure 4 This is an exploded view of the limiting component provided in this embodiment of the utility model.

[0022] Figure 5This is a schematic diagram of the fixing component provided in an embodiment of the present utility model.

[0023] In the attached diagram: 1. Base; 2. Rotating component; 3. Connecting component; 4. Limiting component; 5. Positioning component; 6. Fixing component; 7. Triggering device; 8. Shaft; 9. Assembly hole; 10. Vehicle body; 14. Mounting hole; 20. Front cover; 21. Slide groove; 22. Extension; 23. Receiving groove; 24. Groove; 25. Baffle; 31. Horizontal plate; 32. Vertical plate; 41. Limiting plate; 42. Elastic component; 43. Locking component; 61. Fixing head; 62. Connecting component; 71. Push rod; 11. Mounting arm; 12. Bending part; 13. Notch; 221. Arc-shaped baffle; 411. Side part; 412. Push top; 413. Protruding column; 611. Elastic part; 622. Elastic part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] In this embodiment, "several" and "more than" refer to two or more. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 5As shown, this embodiment provides a car front hood hinge, including a base 1, a rotating member 2, a connecting member 3, and a limiting assembly 4. The base 1 serves as a fixed carrier for the hinge to the vehicle body 10. One end of the rotating member 2 is pivotally connected to the base 1, and the other end is provided with a groove 21, allowing it to rotate relative to the base 1. The direction of the groove 21 is consistent with the length direction of the front hood 20, providing guidance for the sliding of the connecting member 3. The connecting member 3 is slidably connected to the groove 21 through a positioning member 5, and the connecting member 3 is rotatably connected to the rotating member 2 through the positioning member 5, meaning that the connecting member 3 can both slide and rotate relative to the positioning member 5. The connecting member 3 is used to connect the front hood 20 and the rotating member 2, and the positioning member 5 can be a pin. The limiting assembly 4 is disposed on the extension 22 of the rotating member 2, which is a protruding structure integrally extending from the side of the rotating member 2. The limiting assembly 4 includes a limiting plate 41, an elastic element 42, and a locking element 43. The limiting plate 41 is disposed in the receiving groove 23 of the extension 22. The elastic element 42 is sleeved on the locking element 43 and abuts against the limiting plate 41 and the receiving groove 23 respectively, providing elastic force to the limiting plate 41. The locking element 43 passes through the limiting plate 41 and locks itself to the rotating member 2, limiting the limiting plate in the receiving groove and providing guidance for the elastic element to prevent it from shifting. The locking element 43 can be a pin. In the initial state, i.e., the normal state before a collision, the connecting member 3 presses down on the side 411 of the limiting plate 41, causing the elastic element 42 to be in a compressed state, storing elastic potential energy. The elastic element 42 is a torsion spring. When a collision occurs between the car and a pedestrian, the car is in a collision state, and the push top 412 of the limiting plate 41 rotates to abut against the connecting member 3. This prevents the connecting member 3 from resetting after it opens upwards following the collision, thus preventing the collision protection from failing. The push top 412 is arc-shaped, allowing it to rotate and change position relative to the connector 3.

[0028] Furthermore, the rotating component 2 and the connecting component 3 are connected by a fixing assembly 6, which is disposed in the assembly hole 9. The car front hood hinge also includes a triggering device 7, which is used to destroy the fixing assembly 6 in the event of a collision, causing the rotating component 2 and the connecting component 3 to move relative to each other. The triggering device 7 includes a push rod 71, which is correspondingly disposed with the connecting component 3. In the event of a collision, the triggering device 7 pushes the connecting component 3 through the push rod 71, thereby destroying the fixing assembly 6. The triggering device 7 can be a cylinder. The rotating component 2 has a groove 24, and the push rod 71 corresponds to the groove 24, allowing the push rod 71 to pass through the groove 24 to push the connecting component 3 without interference. The connecting component 3 has a horizontal plate 31, which is located on the moving path of the push rod 71 and is used to receive the impact force of the push rod in the event of a collision, allowing the push rod 71 to push the horizontal plate 31. The connecting component 3 has a vertical plate 32 perpendicular to the horizontal plate 31, which is connected to the slide groove 21 through a positioning component 5.

[0029] Specifically, the fixing component 6 includes a fixing head 61 and a mating part 62. The fixing head 61 has several spaced elastic portions 611, which can be arc-shaped metal springs. The inner wall of the elastic portion 611 is threadedly connected to the mating part 62. When the mating part 62 is locked into the fixing head 61, the elastic portions 611 expand outward to press the rotating part 2 and the connecting part 3. The base 1 has a mounting arm 11, with bent portions 12 on both sides. A notch 13 is located between the bent portions 12, and the notch 13 is located around the mounting hole 14. One end of the rotating part 2 is rotatably connected to the mounting arm 11 via a shaft 8. The rotating part 2 is provided with a baffle 25, which is located in the notch 13. When the rotating part 2 rotates, the baffle 25 rotates synchronously within the range of the notch 13, thereby limiting the rotation range of the rotating part 2. An arc-shaped baffle 221 is provided on one side of the extension 22, and a limiting plate 41 has a protrusion 413 opposite to the arc-shaped baffle 221. The two ends of the elastic member 42 are connected to the arc-shaped baffle 221 and the protrusion 413, respectively. The two ends of the elastic member 42 abut against the arc-shaped baffle 221 and the protrusion 413, respectively. In the initial state, it is in a compressed state because the connecting member presses against the side of the limiting plate, storing elastic potential energy.

[0030] When a vehicle collides head-on with a pedestrian, the triggering device's push rod is activated. Under the impact force, the push rod moves into the groove of the rotating component and strikes the horizontal plate of the connecting component. The horizontal plate, under the force, causes the connecting component to undergo lateral displacement, causing the elastic part of the fixing head to deform under shear force, disengaging the internal thread from the mating component, and releasing the locking of the fixing assembly. After the locking is released, the limiting plate rotates around the locking component under the elastic force of the elastic component. The arc-shaped push top of the limiting plate gradually abuts against the longitudinal plate of the connecting component and pushes the connecting component to slide away from the base along the sliding groove of the rotating component. Since the connecting component is fixed to the front cover, the sliding of the connecting component causes the front cover to lift upward, forming a buffer space between the front cover and the vehicle body. When a pedestrian's head or chest impacts the front cover, the front cover can deform to a certain extent through the lifting space, absorbing the collision energy and significantly reducing the impact force on the pedestrian.

[0031] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. A car front hood hinge, characterized in that, The device includes a base, a rotating component, a connecting component, and a limiting assembly. One end of the rotating component is pivotally connected to the base, and the other end has a sliding groove. The connecting component is slidably connected to the sliding groove via a positioning component, and is rotatably connected to the rotating component via the positioning component. The limiting assembly is disposed on the extension of the rotating component and includes a limiting plate, an elastic element, and a locking element. The limiting plate is disposed in a receiving groove in the extension. The elastic element is sleeved on the locking element and abuts against the limiting plate and the receiving groove respectively, providing elastic force to the limiting plate. The locking element passes through the limiting plate and locks itself to the rotating component. In the initial state, the connecting component presses against the side of the limiting plate, compressing the elastic element. In the collision state, the pushing top of the limiting plate rotates to abut against the connecting component.

2. The automotive front hood hinge according to claim 1, characterized in that, The rotating component and the connecting component are connected by a fixed assembly. The car hood hinge also includes a triggering device, which is used to destroy the fixed assembly in the event of a collision, causing the rotating component and the connecting component to move relative to each other.

3. The automotive front hood hinge according to claim 2, characterized in that, The triggering device includes a push rod, and the push rod is correspondingly arranged with a connecting piece.

4. The automotive front hood hinge according to claim 3, characterized in that, The rotating component has a groove, the push rod corresponds to the groove, and the connecting component is provided with a horizontal plate, which is located on the moving path of the push rod.

5. The automotive front hood hinge according to claim 4, characterized in that, The connector has a longitudinal plate perpendicular to the horizontal plate, and the longitudinal plate is connected to the slide groove by a positioning element.

6. The automotive front hood hinge according to claim 2, characterized in that, The fixing component includes a fixing head and a mating part. The fixing head has several spaced elastic parts. The inner wall of the elastic parts is threadedly connected to the mating part, so that the elastic parts expand outward to press the rotating part and the connecting part.

7. The automotive front hood hinge according to claim 1, characterized in that, The base has a mounting arm with bent portions on both sides and a notch between the bent portions. The notch is located around the mounting hole. One end of the rotating component is rotatably connected to the mounting arm via a shaft. The rotating component has a baffle located in the notch.

8. The automotive front hood hinge according to claim 1, characterized in that, An arc-shaped baffle is provided on one side of the extension, and a limiting plate has a protruding post that is opposite to the arc-shaped baffle. The two ends of the elastic member are connected to the arc-shaped baffle and the protruding post, respectively.

9. The automotive front hood hinge according to claim 1, characterized in that, The push top is arc-shaped, and the slide groove is a straight groove, with the slide groove direction consistent with the front cover direction.

10. The automotive front hood hinge according to claim 1, characterized in that, The connector is connected to the front cover, and the base is connected to the vehicle body.

Images