CN111379487A

CN111379487A - A vehicle that is used for engine hood hinge means of vehicle and has it

Info

Publication number: CN111379487A
Application number: CN201811609461.3A
Authority: CN
Inventors: 王长一; 肖静杰; 韩二红; 张红霞; 任万里; 黄创举; 安静; 段蕊; 邵贝
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2020-07-07

Abstract

The invention discloses a hood hinge device for a vehicle and a vehicle with the same, wherein the hood hinge device comprises: hinge base, cantilever subassembly, locking release mechanism and jacking device. The hinge base is suitable for being fixed with a vehicle body; the cantilever assembly includes: the first cantilever is connected with the hinge base, and the second cantilever is connected with the engine cover; the locking and releasing mechanism is used for locking and connecting the first cantilever and the second cantilever into a whole; the jacking device is matched with the release locking mechanism in a stop-stop mode, the jacking device can release the locking state between the first cantilever and the second cantilever, and the jacking device can drive the locking release mechanism to move and drive the second cantilever to rotate around the rotation axis of the second cantilever. According to the engine hood hinge device, the structure is more stable, and the strength is higher. After receiving the signal, release mechanism can release in the twinkling of an eye, realizes that the engine bonnet rear portion is raised, thereby reaches the purpose that provides enough collision space and improve pedestrian protection score.

Description

A vehicle that is used for engine hood hinge means of vehicle and has it

Technical Field

The invention relates to the technical field of vehicles, in particular to a hood hinge device for a vehicle and the vehicle with the hood hinge device.

Background

The existing hood hinge structure is a passive hood hinge. In the present day that pedestrian protection is increasingly emphasized, in each large market, the requirement for pedestrian protection score is higher and higher, and the engine cover is as the important score region of pedestrian protection, but because passive engine cover hinge does not have bounce ability, and engine cover self strength requirement is higher, especially engine cover hinge installation position, the deformation space between engine cover and its spare parts such as engine of lower part is less, consequently, can't form sufficient buffer space to hardly satisfy the needs of each market pedestrian collision protection regulation.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a hood hinge device for a vehicle, which is more stable in structure and higher in strength. After receiving the signal, release mechanism can release in the twinkling of an eye, realizes that the engine bonnet rear portion is raised, thereby reaches the purpose that provides enough collision space and improve pedestrian protection score.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a hood hinge device for a vehicle, comprising: hinge base, cantilever subassembly, locking release mechanism and jacking device. The hinge base is suitable for being fixed with a vehicle body; the cantilever assembly includes: the hinge base is provided with a first cantilever and a second cantilever, the first cantilever is connected with the hinge base, and the second cantilever is connected with the engine cover; the locking and releasing mechanism is used for locking and connecting the first cantilever and the second cantilever into a whole; the jacking device is matched with the locking and releasing mechanism in a stopping and abutting mode, the jacking device can release the locking state between the first cantilever and the second cantilever, and the jacking device can drive the locking and releasing mechanism to move and drive the second cantilever to rotate around the rotation axis of the second cantilever.

The hood hinge device according to one embodiment of the present invention further includes: a fixing pin, the fixing pin sets up on the first cantilever, locking release mechanism with the second cantilever links to each other, locking release mechanism includes: the lower end of the locking and releasing mechanism body is provided with a locking hook, and the locking hook is matched with the fixing pin in a locking mode so that the first cantilever and the second cantilever are connected into a whole in a locking mode.

The hood hinge device according to one embodiment of the present invention further includes: and the locking and releasing mechanism is pivotally connected to the second cantilever through the first pin shaft.

Further, the lock release mechanism further includes: the tearing part is fixed with the second cantilever through a fastener, and when the jacking device jacks the locking and releasing mechanism, the tearing part is separated from the fastener.

Further, the tearing part is thinned relative to the thickness of the locking and releasing mechanism body.

The hood hinge device according to one embodiment of the present invention further includes: and the second pin shaft is used for enabling the second cantilever to rotate relative to the first cantilever through the second pin shaft when the first cantilever and the second cantilever are unlocked, and the axis of the second pin shaft is constructed as the rotation axis of the second cantilever.

Further, the lock release mechanism body further includes: the jacking device is suitable for abutting against the jacking matching part, a positioning hole is formed in the second cantilever, and the jacking matching part is matched in the positioning hole when the first cantilever and the second cantilever are in a locking state.

Further, the lock release mechanism body further includes: the cantilever jacking part is used for pushing the blocking wall when the cantilever jacking part moves to be in contact with the blocking wall, so that the second cantilever rotates around the rotating axis.

Further, the cantilever jacking portion, the jacking matching portion, the lock hook and the tearing portion are respectively located at four corners of the locking and releasing mechanism.

Furthermore, the cantilever jacking part and the tearing part are respectively positioned at two sides of the first pin shaft.

Furthermore, one of the first cantilever and the second cantilever is provided with a limit pin, the other of the first cantilever and the second cantilever is provided with a limit groove, and the limit pin is slidably matched in the limit groove so as to limit the maximum rotation angle of the second cantilever around the rotation axis.

Furthermore, the limiting groove is an arc-shaped groove, and the circle center of the arc-shaped groove is located on the rotating axis.

Compared with the prior art, the engine hood hinge device is more stable in structure and higher in strength. After receiving the signal, release mechanism can release in the twinkling of an eye, realizes that the engine bonnet rear portion is raised, thereby reaches the purpose that provides enough collision space and improve pedestrian protection score.

The invention also provides a vehicle with the hood hinge device, and the vehicle comprises the hood hinge device. The vehicle has the same advantages as the hood hinge device, and the description thereof is omitted.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of a hood hinge assembly according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a first level unlocking of the hood hinge assembly according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a two-stage unlocking of a hood hinge assembly according to an embodiment of the present invention;

fig. 4 is a plan view of a hood hinge device according to an embodiment of the present invention.

Reference numerals:

100-hood hinge device, 1-hinge base, 2-cantilever assembly, 21-first cantilever, 22-second cantilever, 221-positioning hole, 223-blocking wall, 3-locking release mechanism, 31-locking release mechanism body, 311-jacking matching part, 312-cantilever jacking part, 32-locking hook, 33-tearing part, 34-fastening piece, 4-jacking device, 5-fixing pin, 6-first pin shaft, 7-second pin shaft, 8-limiting pin and 9-limiting groove.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

A hood hinge device 100 for a vehicle according to an embodiment of the present invention will be described with reference to fig. 1 to 4. As shown in fig. 1 and 2, a hood hinge device 100 according to an embodiment of the present invention includes: the device comprises a hinge base 1, a cantilever assembly 2, a locking and releasing mechanism 3 and a jacking device 4. In particular, the hinge base 1 is adapted to be fixed with a vehicle body. In other words, the hinge base 1 may be fastened with bolts. Specifically, the boom assembly 2 includes: a first suspension arm 21 and a second suspension arm 22, the first suspension arm 21 being connected to the hinge base 1, the second suspension arm 22 being connected to the engine cover. Specifically, the lock release mechanism 3 is used to lock and connect the first suspension arm 21 and the second suspension arm 22 into a single body. Specifically, the jacking device 4 is in abutting fit with the locking and releasing mechanism 3, the jacking device 4 can release the locking state between the first cantilever 21 and the second cantilever 22, and the jacking device 4 can drive the locking and releasing mechanism 3 to move and drive the second cantilever 22 to rotate around the rotation axis of the second cantilever 22. In other words, after the jacking device 4 applies explosive force, the locking and releasing mechanism 3 is released to fix the first cantilever 21 and the second cantilever 22, so that the second cantilever 22 rotates around the rotation axis of the second cantilever 22, the hood hinge bounces, the rear part of the hood is lifted, and a buffer space is provided to reduce injury to pedestrians.

According to the hood hinge device 100 of the embodiment of the invention, the structure is more stable, and the strength is higher. After the release mechanism is released, the rear part of the engine cover is lifted, and the purpose of providing enough collision space so as to improve the pedestrian protection score is achieved.

Further, as shown in fig. 1, the hood hinge device 100 according to the embodiment of the present invention may further include: the fixed pin 5, the fixed pin 5 sets up on first cantilever 21, and locking release mechanism 3 links to each other with second cantilever 22, and second cantilever 22 is connected as an organic wholely with first cantilever 21 through the cooperation of locking release mechanism 3 with fixed pin 5, and under normal conditions, first cantilever 21 and second cantilever 22 are as a whole, the hasp and the cooperation of hinge base 1 of the first cantilever 21 front end of accessible to realize the normal opening and the closure of engine bonnet. Further, the lock release mechanism 3 includes: a lock release mechanism body 31, a lock hook 32 is provided at a lower end of the lock release mechanism body 31. Specifically, the locking hook 32 is in locking fit with the fixing pin 5 so as to lock and connect the first cantilever 21 and the second cantilever 22 into a whole, and the locking mode is simple and reliable.

Alternatively, as shown in fig. 3, the hood hinge device 100 according to the embodiment of the present invention may further include: the first pin 6 and the locking and releasing mechanism 3 are pivotally connected to the second cantilever 22 through the first pin 6. Specifically, when the locking and releasing mechanism 3 is subjected to the jacking force of the jacking device 4, the locking hook 32 on the locking and releasing mechanism 3 may be disengaged from the fixing pin 5, at this time, when the jacking device 4 continues to jack the locking and releasing mechanism 3, the locking and releasing mechanism 3 may rotate around the first pin 6 until the locking and releasing mechanism 3 abuts against the second cantilever 22, and then the locking and releasing mechanism 3 may rotate together with the second cantilever 22, so as to finally lift the rear portion of the engine cover to provide a certain buffering space.

Further, the lock release mechanism 3 may further include: the tearing part 33, the tearing part 33 can be fixed with the second cantilever 22 through the fastener 34, and under the action of the larger explosive force of the jacking device 4, the tearing part 33 can be separated from the fastener 34, so that the locking hook 32 can be separated from the fixing pin 5. Further, the tear portion 33 is thinned with respect to the lock release mechanism body 31. Specifically, in an embodiment of the present invention, the thickness of the tear portion 33 may be half of the thickness of the lock release mechanism body 31, so as to facilitate the tear portion 33 to break under the action of the explosive force of the jacking device 4, and further, an indentation may be formed on the tear portion 33, so that the tear portion 33 is easily broken under the action of an external force due to a weakened structure such as the indentation, and thus, the rear portion of the engine hood can be raised quickly, and the response timeliness of the engine hood is improved.

As shown in fig. 3, according to an embodiment of the present invention, further includes: when the first suspension arm 21 and the second suspension arm 22 are unlocked, the second suspension arm 22 can rotate relative to the first suspension arm 21 via the second pin 7, and the axis of the second pin 7 is the aforementioned rotation axis of the second suspension arm 22.

Further, the lock release mechanism body 31 further includes: jacking cooperation portion 311, jacking device 4 is suitable for and leans on jacking cooperation portion 311, correspondingly, can be provided with locating hole 221 on the second cantilever 22, locating hole 221 is the rectangular hole, when first cantilever 21 and second cantilever 22 are in the locking state, jacking cooperation portion 311 cooperation is in locating hole 221, thereby play the positioning action to locking release mechanism 3, and simultaneously, locating hole 221 still can play the effect to locking release mechanism 3 direction at the in-process of locking release mechanism 3 motion, thereby can prevent that locking release mechanism 3 from taking place to deviate and can't jack up second cantilever 22.

Further, as shown in fig. 3, the lock release mechanism body 31 may further include: the cantilever jack 312, the upper side edge of the second cantilever 22 is formed with a blocking wall 223, and when the cantilever jack 312 moves to contact with the blocking wall 223, the cantilever jack 312 may push the blocking wall 223 to rotate the second cantilever 22 about the rotation axis. Further, the cantilever jack 312, the jack-fitting portion 311, the latch hook 32, and the tear portion 33 are respectively located at four corners of the lock release mechanism 3. And the cantilever jacking portion 312 and the tearing portion 33 are respectively located at both sides of the first pin 6. In this way, the cantilever jacking portion 312, the jacking matching portion 311, the latch hook 32 and the tearing portion 33 are reasonably distributed at four corners, so that the layout of the whole locking and releasing mechanism 3 is more compact, and the locking and releasing mechanism 3 can be prevented from interfering with the jacking device 4 and other components.

Further, one of the first suspension arm 21 and the second suspension arm 22 is provided with a stopper pin 8, the other of the first suspension arm 21 and the second suspension arm 22 is provided with a stopper groove 9, and the stopper pin 8 is slidably fitted in the stopper groove 9 so as to limit the maximum angle of rotation of the second suspension arm 22 about the rotation axis. Alternatively, in an embodiment of the present invention, the stopper pin 8 may be disposed on the second suspension arm 22, the stopper groove 9 may be disposed on the first suspension arm 21, and the stopper pin 8 may be slidably fitted in the stopper groove 9; of course, in another embodiment of the present invention, the limit pin 8 may be disposed on the first suspension arm 21, the limit groove 9 may be disposed on the second suspension arm 22, and the limit pin 8 may be slidably fitted in the limit groove 9, which is beneficial to ensure the fitting accuracy of the limit pin 8 and the limit groove 9, so that the motion track of the second suspension arm 22 is accurate. Further, the limiting groove 9 can be an arc-shaped groove, and the circle center of the arc-shaped groove is located on the rotation axis, so that the extending direction of the arc-shaped groove 9 is parallel to the rotation track of the second cantilever 22, the resistance action of the limiting groove 9 on the movement of the second cantilever 22 can be reduced, and the second cantilever 22 can rotate smoothly. Meanwhile, the two ends of the limiting groove 9 are sealed, so that the movement of the limiting pin 8 in the limiting groove 9 can be limited, the maximum rotating angle of the second cantilever 22 can be limited by the matching of the limiting pin 8 and the limiting groove 9, the lifting height of the engine cover is limited, and the engine cover is prevented from being lifted too high to cause secondary damage to pedestrians.

Meanwhile, the jacking device 4 of the embodiment of the invention can be connected with the vehicle control unit, after collision occurs, the vehicle control unit can send an ignition signal to the jacking device 4, and after the jacking device 4 receives the signal, the locking and releasing mechanism 3 is jacked upwards, so that the locking and releasing mechanism 3 is released and pushes the second cantilever 22 to rotate, the rear part of the engine hood is lifted, sufficient collision space is provided, and the protection degree of pedestrians is improved.

The detailed operation of the hood hinge device 100 according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 4:

as shown in fig. 1-4, when a pedestrian collides with a vehicle, the vehicle control unit sends an ignition signal to the jacking device 4, after the jacking device 4 receives the ignition signal, an explosive force is applied to move the ejector rod of the jacking device 4 upwards, at this time, the weakened structure (such as the tearing part 33) of the locking and releasing mechanism 3 is broken after being acted by the explosive force, the ejector rod continues to move upwards, the locking and releasing mechanism 3 rotates upwards around the first pin 6 under the jacking action of the ejector rod, during the rotation process, the locking hook 32 is disengaged from the fixing pin 5, so that the fixing of the first cantilever 21 and the second cantilever 22 is released, when the cantilever jacking part 312 of the locking and releasing mechanism 3 moves to be matched with the blocking wall 223 of the second cantilever 22, the locking and releasing mechanism 3 pushes the second cantilever 22 to rotate around the second pin 7, so that the rear part of the engine hood is lifted until the limiting pin 8 is limited by the limiting groove 9, the rear part of the engine cover is lifted to the maximum height, so that enough buffer space is ensured, and the injury to pedestrians is reduced to the maximum extent.

In summary, the hood hinge device 100 of the present invention has a more stable structure and higher strength. After receiving the signal, release mechanism can release in the twinkling of an eye, realizes that the engine bonnet rear portion is raised, thereby reaches the purpose that provides enough collision space and improve pedestrian protection score.

The invention also provides a vehicle with the hood hinge device 100, which comprises the hood hinge device 100, so that the vehicle has the advantages that the hood has enough buffer space, the pedestrian is fully protected, the requirements of pedestrian collision protection regulations can be met, and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A hood hinge device (100) for a vehicle, characterized by comprising:

the hinge base (1), the hinge base (1) is suitable for being fixed with a vehicle body;

a boom assembly (2), the boom assembly (2) comprising: a first suspension arm (21) and a second suspension arm (22), the first suspension arm (21) being connected to the hinge base (1), the second suspension arm (22) being connected to the hood;

the locking and releasing mechanism (3) is used for locking and connecting the first cantilever (21) and the second cantilever (22) into a whole;

the jacking device (4) is in butt fit with the locking and releasing mechanism (3), the jacking device (4) can release the locking state between the first cantilever (21) and the second cantilever (22), and the jacking device (4) can drive the locking and releasing mechanism (3) to move and drive the second cantilever (22) to rotate around the rotation axis of the second cantilever (22).

2. The hood hinge device (100) for a vehicle according to claim 1, further comprising: a fixing pin (5), the fixing pin (5) is disposed on the first suspension arm (21), the latch release mechanism (3) is connected to the second suspension arm (22), the latch release mechanism (3) includes: the locking and releasing mechanism comprises a locking and releasing mechanism body (31), wherein a locking hook (32) is arranged at the lower end of the locking and releasing mechanism body (31), and the locking hook (32) is matched with the fixing pin (5) in a locking mode so as to connect the first cantilever (21) and the second cantilever (22) into a whole in a locking mode.

3. The hood hinge device (100) for a vehicle according to claim 2, further comprising: the locking and releasing mechanism (3) is pivotally connected to the second cantilever (22) through the first pin shaft (6).

4. The hood hinge device (100) for a vehicle according to claim 3, wherein the lock release mechanism (3) further includes: the tearing portion (33) is fixed with the second cantilever (22) through a fastener (34), and when the jacking device (4) jacks the locking and releasing mechanism (3), the tearing portion (33) is separated from the fastener (34).

5. The hood hinge device (100) for a vehicle according to claim 4, wherein the tear portion (33) is thinned with respect to a thickness of the lock-release mechanism body (31).

6. The hood hinge device (100) for a vehicle according to claim 1, further comprising: and a second pin (7), wherein when the first cantilever (21) and the second cantilever (22) are unlocked, the second cantilever (22) can rotate relative to the first cantilever (21) through the second pin (7), and the axis of the second pin (7) is configured as the rotation axis of the second cantilever (22).

7. The hood hinge device (100) for a vehicle according to claim 4, wherein the lock-release mechanism body (31) further includes: the jacking device (4) is suitable for abutting against the jacking matching part (311), a positioning hole (221) is formed in the second cantilever (22), and when the first cantilever (21) and the second cantilever (22) are in a locking state, the jacking matching part (311) is matched in the positioning hole (221).

8. The hood hinge device (100) for a vehicle according to claim 7, wherein the lock-release mechanism body (31) further includes: a cantilever jack-up part (312), wherein a blocking wall (223) is formed at the upper side edge of the second cantilever (22), and when the cantilever jack-up part (312) moves to be in contact with the blocking wall (223), the cantilever jack-up part (312) can push the blocking wall (223) so as to enable the second cantilever (22) to rotate around the rotation axis.

9. The hood hinge device (100) for a vehicle according to claim 8, wherein the cantilever jack-up portion (312), the jack-up fitting portion (311), the latch hook (32), and the tear portion (33) are located at four corners of the latch release mechanism (3), respectively.

10. The hood hinge device (100) for the vehicle according to claim 8, wherein the cantilever lifter (312) and the tear portion (33) are located on both sides of the first pin (6), respectively.

11. The hood hinge device (100) for a vehicle according to claim 2, wherein a stopper pin (8) is provided on one of the first suspension arm (21) and the second suspension arm (22), and a stopper groove (9) is provided on the other of the first suspension arm (21) and the second suspension arm (22), and the stopper pin (8) is slidably fitted in the stopper groove (9) to thereby restrict a maximum angle of rotation of the second suspension arm (22) about the rotation axis.

12. The hood hinge device (100) for a vehicle according to claim 11, wherein the stopper groove (9) is an arc-shaped groove having a center located on the rotational axis.

13. A vehicle characterized by comprising a hood hinge device (100) for a vehicle according to any one of claims 1 to 12.