CN213477975U

CN213477975U - Engine bonnet hinge and vehicle

Info

Publication number: CN213477975U
Application number: CN202022126943.2U
Authority: CN
Inventors: 王长一; 韩二红; 苗可心; 安静
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-18
Anticipated expiration: 2030-09-24

Abstract

The present disclosure relates to a hood hinge and a vehicle, the hood hinge including: the hinge base is used for being fixedly connected with the vehicle body; a hinge suspension arm including a first suspension arm connected to the hinge base and a second suspension arm connected to the hood; a release mechanism for releasably locking the first and second cantilevers together to have a locked state and an unlocked state; the jacking device is in abutting fit with the release mechanism so as to enable the first cantilever and the second cantilever to have an unlocking state by driving the release mechanism to move, wherein in the unlocking state, the release mechanism can drive the first cantilever to move and enable the second cantilever to rotate relative to the first cantilever to jack up the engine cover; when external force is applied to the engine cover, the second cantilever can be moved downwards to reset, and the release mechanism is driven to move to switch from the unlocking state to the locking state. The engine hood hinge provided by the disclosure has the hinge bouncing function and the hinge resetting function simultaneously, so that the after-sale maintenance cost can be reduced.

Description

Engine bonnet hinge and vehicle

Technical Field

The present disclosure relates to the field of vehicle technology, and in particular, to a hood hinge and a vehicle.

Background

In the present day that importance is increasingly paid to pedestrian protection, each large market also has higher and higher requirements to pedestrian protection score, and engine covers are as the important area of scoring of pedestrian protection, and each large enterprise begins to emphasize and uses initiative bounce-type engine cover hinge to this improves pedestrian protection score. However, most of the pop-up motions of the existing active pop-up hinges are destructive motions, and after the active pedestrian protection device is triggered, the engine hood hinge needs to be replaced, thereby increasing the after-sale maintenance cost.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a hood hinge capable of providing a hinge with a reset function while achieving a hinge pop-up function, thereby reducing after-market maintenance costs.

It is another object of the present disclosure to provide a vehicle equipped with a hood hinge provided by the present disclosure.

In order to achieve the above object, the present disclosure provides a hood hinge including:

the hinge base is used for being fixedly connected with the vehicle body;

a hinge boom comprising a first boom connected to the hinge base and a second boom connected to a hood;

a release mechanism for releasably locking the first and second booms in connection such that the first boom and the second boom have a locked state and an unlocked state; and

the jacking device is used for being matched with the release mechanism in a butting mode so as to enable the first cantilever and the second cantilever to have the unlocking state by driving the release mechanism to move,

in the unlocking state, the release mechanism can drive the first cantilever to move, and enables the second cantilever to rotate relative to the first cantilever so as to jack up the engine cover; when external force is applied to the engine cover, the second cantilever can be moved downwards to reset and drive the release mechanism to move so as to switch from the unlocking state to the locking state.

Optionally, the release mechanism includes a body and a locking portion formed on the body, the body is connected to the first suspension arm, and the locking portion is in locking engagement with a locking member on the second suspension arm.

Optionally, the locking member is configured as a fixed pin, and the locking portion is configured as a locking hook capable of locking engagement with the fixed pin.

Optionally, the body is pivotally disposed on the first cantilever through a first rotating shaft, and when the lifting device drives the release mechanism, the body can rotate around the first rotating shaft, so that the locking portion is disengaged from the locking member.

Optionally, the release mechanism further includes a torsion spring sleeved outside the first rotating shaft, and the torsion spring elastically abuts between the first cantilever and the body.

Optionally, the body is further provided with a jacking matching portion used for being in contact fit with the jacking device, the first cantilever is provided with a blocking wall, and when the jacking matching portion moves to be in contact with the blocking wall, the blocking wall can be pushed to move.

Optionally, the first cantilever is rotatably connected to the hinge base by a link.

Optionally, the hood hinge further includes a second rotating shaft connected between the first suspension arm and the second suspension arm, and in the unlocked state, the second suspension arm rotates relative to the first suspension arm about the second rotating shaft.

Optionally, one of the first cantilever and the second cantilever is formed with a limiting groove, and the other is provided with a limiting pin in sliding fit with the limiting groove.

According to a second aspect of the present disclosure, there is provided a vehicle comprising a hood hinge according to the above.

Through the technical scheme, when the engine hood hinge needs to be bounced, the jacking device drives the release mechanism to move, the first cantilever and the second cantilever are unlocked, and the first cantilever moves under the driving of the release mechanism, so that the second cantilever rotates relative to the first cantilever to jack the engine hood; when the engine hood hinge needs to reset, the first cantilever returns to the initial position under the action of self gravity, external force is applied to the engine hood at the moment, the second cantilever is stressed to move downwards to reset, and is in contact with the release mechanism and drives the release mechanism to move in the moving process, so that the first cantilever and the second cantilever are locked together finally.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic illustration of a hood hinge according to an exemplary embodiment of the present disclosure in a normal state;

FIG. 2 is a partial schematic structural view of the hood hinge shown in FIG. 1;

FIG. 3 is a schematic illustration of the hood hinge shown in FIG. 1 during pop-up;

FIG. 4 is a schematic view of the hood hinge shown in FIG. 1 after being sprung;

FIG. 5 is a schematic illustration comparing a configuration of the hood hinge shown in FIG. 1 after pop-up and before pop-up;

FIG. 6 is a first schematic illustration of the hood hinge shown in FIG. 1 during a repositioning process;

fig. 7 is a second structural schematic view of the hood hinge shown in fig. 1 during a return process.

Description of the reference numerals

100 hinge base 200 hinge cantilever

210 first cantilever 211 wall

220 second cantilever 221 latch

300 release mechanism 310 body

320 jacking matching part of locking part 330

400 jacking device 500 first rotating shaft

510 torsional spring 600 connecting rod

700 second shaft 810 spacing groove

820 spacing pin

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "upper", "lower", "top" and "bottom" are generally defined according to the normal use state of the hood hinge, and refer to the drawing direction shown in fig. 1; "front" and "rear" are defined according to the traveling state of the vehicle, and referring to fig. 1, the left side in the drawing direction is front, and the right side in the drawing direction is rear; "inner" and "outer" refer to the inner and outer contours of the respective components. Furthermore, the terms "first," "second," and the like, as used in this disclosure, are intended to distinguish one element from another, and not necessarily for order or importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

Referring to fig. 1, an embodiment of the present disclosure provides a hood hinge including a hinge base 100, a hinge cantilever 200, a release mechanism 300, and a jacking device 400. The hinge base 100 is used for being fixedly connected with a vehicle body; the hinge suspension arm 200 may include a first suspension arm 210 and a second suspension arm 220, the first suspension arm 210 may be connected to the hinge base 100, and the second suspension arm 220 may be connected to the hood, thereby enabling the hinge connection between the hood and the vehicle body; the release mechanism 300 is used for releasably locking and connecting the first cantilever 210 and the second cantilever 220, so that the first cantilever 210 and the second cantilever 220 have a locked state and an unlocked state, that is, the release mechanism 300 can realize the locked connection between the first cantilever 210 and the second cantilever 220 to achieve the locked state and also can release the locked connection between the first cantilever 210 and the second cantilever 220 to achieve the unlocked state; the jacking device 400 may be adapted to be in abutting engagement with the release mechanism 300 such that the first boom 210 and the second boom 220 have an unlocked state by actuating the release mechanism 300 to move. Referring to fig. 1, the first suspension arm 210 may be disposed in front of the second suspension arm 220, when the first suspension arm 210 and the second suspension arm 220 are in an unlocked state, the release mechanism 300 may drive the first suspension arm 210 to move under the driving of the jacking device 400, and when the first suspension arm 210 moves, the second suspension arm 220 may rotate relative to the first suspension arm 210 to jack up the engine cover. That is, referring to fig. 5, when the first suspension arm 210 moves, a certain upward displacement may be generated, and when the second suspension arm 220 rotates relative to the first suspension arm 210, a certain upward displacement may also be generated, so that the second suspension arm 220 may have a bounce height X relative to an initial position, so as to finally lift up the rear portion of the hood, thereby improving the pedestrian protection performance, which is a bounce function of the hood hinge. After the hood hinge bounces, the first cantilever 210 moves downwards under the action of self gravity, when the first cantilever 210 returns to the initial position, a downward external force can be applied to the hood, the external force is transmitted to the second cantilever 220 through the hood, so that the second cantilever 220 moves downwards to be reset, the second cantilever 220 can contact and drive the release mechanism 300 to move in the moving process, and therefore the release mechanism 300 locks the first cantilever 210 and the second cantilever 220 together again, the unlocking state is switched to the locking state, and the unlocking state is the resetting function of the hood hinge. It should be noted that, the release mechanism 300 provided in the present disclosure may be a mechanical movement structure that does not cause destructive injury, so that the first suspension arm 210 and the second suspension arm 220 can be locked and released through corresponding mechanical movements, so that the hood hinge has both functions of bouncing and returning.

Through the technical scheme, when the hood hinge needs to be popped up, the jacking device 400 can drive the release mechanism 300 to move, the first cantilever 210 and the second cantilever 220 are unlocked, and the first cantilever 210 moves under the driving of the release mechanism 300, so that the second cantilever 220 rotates relative to the first cantilever 210 to jack up the hood; when the hood hinge needs to be reset, the first cantilever 210 returns to the initial position under the action of self gravity, at the moment, an external force is applied to the hood, the second cantilever 220 is stressed to move downwards to reset, and in the moving process, the second cantilever is in contact with the release mechanism 300 and drives the release mechanism 300 to move, and finally the first cantilever 210 and the second cantilever 220 are locked together. The hinge structure of the engine hood provided by the embodiment of the disclosure is simple and stable, has higher strength, and the release mechanism 300 can be instantly released under the driving force of the jacking device 400, so that the rear part of the engine hood is lifted, thereby providing enough collision space and improving the score of pedestrian protection. Meanwhile, the release mechanism 300 can not generate destructive injury after being released and can be reset, so that the engine hood hinge can be repeatedly used, and the after-sale maintenance cost is reduced.

According to some embodiments, referring to fig. 2, the release mechanism 300 may include a body 310, a latch part 320 formed on the body 310, and a latch 221 provided on the second suspension arm 220. The body 310 may be connected to the first suspension arm 210, the locking portion 320 may be in locking engagement with the locking member 221 to restrict the first suspension arm 210 and the second suspension arm 220 in the locked state, and the first suspension arm 210 and the second suspension arm 220 may be restricted in the unlocked state by releasing the engagement of the locking portion 320 and the locking member 221. Here, the connection of the body 310 to the first suspension arm 210 is also beneficial to realize the synchronous movement of the release mechanism 300 with the first suspension arm 210.

As an embodiment, referring to fig. 2, the locking member 221 may be configured as a fixed pin fixedly disposed on the second suspension arm 220, and the locking portion 320 may be correspondingly configured as a locking hook capable of locking-engaging with the fixed pin. Wherein, the latch hook can have the arc structure, and the tip diameter of fixed pin can be greater than the internal diameter of arc structure to prevent that the latch hook from deviating from on the fixed pin axial. In this way, the first suspension arm 210 and the second suspension arm 220 can be connected into a whole through the locking engagement of the locking hook and the fixing pin. In other embodiments, the locking member 221 may be a rivet or the like.

The present disclosure is not limited to the manner of releasing the locking cooperation between the locking part 320 and the locking member 221, for example, according to some embodiments, referring to fig. 2 to 4, the body 310 may be pivotally disposed on the first suspension arm 210 through the first rotation shaft 500, so that when the lifting device 400 drives the releasing mechanism 300, the body 310 can rotate around the first rotation shaft 500, so that the locking part 320 moves away from the locking member 221 through the rotation motion, thereby releasing the locking part 320 from the locking member 221. The locking connection between the locking part 320 and the locking member 221 is released through a rotational motion mode, so that the locking hook and the fixing pin can be disengaged, and the release mechanism 300 is prevented from being damaged when the locking connection between the first cantilever 210 and the second cantilever 220 is released. Specifically, as shown in fig. 2 to 4, the fixing pin may be located above the first rotating shaft 500, and the locking hook may be locked at a right side of the fixing pin, and when the body 310 rotates clockwise about the first rotating shaft 500, the locking hook moves and is unscrewed from the pin shaft of the fixing pin. The first rotating shaft 500 may be a pin, for example.

In an embodiment provided by the present disclosure, referring to fig. 1 and 2, the release mechanism 300 may further include a torsion spring 510 disposed at an outer side of the first rotating shaft 500, and the torsion spring 510 may elastically abut between the first cantilever 210 and the body 310. The fixing of the body 310 on the first arm 210 can be achieved by the torsion spring 510, so that the locking part 320 is fixed at the position where it is locked and matched with the locking piece 221, and the body 310 is prevented from rotating freely. On the other hand, when the second suspension arm 220 moves downwards to reset the driving body 310, the driving body 310 can rotate to the initial position under the elastic restoring action of the torsion spring 510, so as to drive the locking portion 320 to move to the position where the locking member 221 is locked and matched, thereby realizing the locking connection between the first suspension arm 210 and the second suspension arm 220. Specifically, in the case where the locking portion 320 is configured as a locking hook and the locking member 221 is configured as a fixing pin, in the normal state, referring to fig. 2, the first cantilever 210 and the second cantilever 220 are in the locked state, and the locking hook and the fixing pin are in locking engagement under the elastic action of the torsion spring 510; referring to fig. 3 and 4, when the jacking device 400 drives the release mechanism 300 to move, the latch hook is driven by the body 310 to rotate clockwise around the first rotating shaft 500 and disengage from the fixed pin, at this time, the torsion spring 510 stores elastic restoring force, as the first cantilever 210 drives the body 310 to move, the second cantilever 220 is lifted upwards, so that the fixed pin moves above the latch hook, and then the latch hook rotates counterclockwise around the first rotating shaft 500 along with the body 310 under the action of the elastic restoring force of the torsion spring 510 and returns to the initial position; referring to fig. 6 and 7, when the hinge of the engine hood is reset, an external force is transmitted to the second suspension arm 220 through the engine hood, the second suspension arm 220 moves downward and contacts with the top of the latch hook, the latch hook is stressed and rotates clockwise around the first rotating shaft 500 under the guiding action of the upper side arc, the torsion spring 510 is stored in the elastic restoring force, and when the second suspension arm 220 moves to the initial position, the body 310 drives the latch hook to rotate counterclockwise around the first rotating shaft 500 under the elastic restoring action of the torsion spring 510, so as to be in locking fit with the fixing pin.

According to some embodiments, referring to fig. 2, the body 310 may further have a jacking matching portion 330 formed thereon for contacting and matching with the jacking device 400, so that the jacking device 400 acts on the jacking matching portion 330 to drive the release mechanism 300. Wherein, the first cantilever 210 may be formed with a blocking wall 211, and when the jacking-fitting part 330 moves to contact with the blocking wall 211, the blocking wall 211 can be pushed to move. That is, referring to fig. 2 to 4, when the hood hinge is in a normal state, a distance may be formed between the jacking-fitting portion 330 and the blocking wall 211, and after the jacking device 400 exerts a force on the jacking-fitting portion 330, the jacking-fitting portion 330 rotates clockwise around the first rotation axis 500 along with the body 310 and gradually approaches the blocking wall 211, during which the first suspension arm 210 does not move, and at the same time, the locking portion 320 and the locking member 221 are disengaged from the locking engagement, and the first suspension arm 210 and the second suspension arm 220 are in an unlocked state. Subsequently, when the jacking-up fitting part 330 moves to contact with the blocking wall 211, the blocking wall 211 blocks the body 310 from moving relative to the first cantilever 210, so that the body 310 can drive the first cantilever 210 to move synchronously, and the release mechanism 300 drives the first cantilever 210 to move.

In order to realize that the first suspension arm 210 moves to drive the second suspension arm 220 to move, as an embodiment, referring to fig. 3 and 4, the first suspension arm 210 may be rotatably connected to the hinge base 100 by a link 600. Wherein, the two links 600 may include two links spaced apart from each other in the front-rear direction, both ends of the two links 600 are rotatably connected to the hinge base 100 and the first suspension arm 210, respectively, to constitute a four-bar linkage, and the two links 600 are connected to the front end of the first suspension arm 210, respectively. When the first suspension arm 210 moves, the link 600 rotates and rises upward, and the second suspension arm 220 is disposed at the rear end of the first suspension arm 210 and connected to the engine hood so as to be able to rotate with respect to the first suspension arm 210.

Here, referring to fig. 1, 3 and 4, the hood hinge may further include a second rotating shaft 700 connected between the first suspension arm 210 and the second suspension arm 220, and the second rotating shaft 700 may be disposed at a rear end of the second suspension arm 220, so that in the unlocked state, the second suspension arm 220 may rotate clockwise with respect to the first suspension arm 210 about the second rotating shaft 700 when the first suspension arm 210 moves, and upward lifting of the second suspension arm 220 may be achieved. The second shaft 700 may be a pin, for example.

In addition, in order to limit the rotation angle of the second suspension arm 220 relative to the first suspension arm 210 and the lifting height of the hood, and to prevent the hood from being excessively lifted and injuring pedestrians, referring to fig. 1 to 4, one of the first suspension arm 210 and the second suspension arm 220 may be formed with a limiting groove 810, and the other may be correspondingly formed with a limiting pin 820 in sliding fit with the limiting groove 810. Meanwhile, the sliding fit of the limiting groove 810 and the limiting pin 820 can also ensure the motion track precision of the second cantilever 220. As an embodiment, as shown in fig. 1 to 4, the stopper groove 810 may be formed on the second suspension arm 220, and the stopper pin 820 may be correspondingly disposed on the first suspension arm 210. The limiting groove 810 may be configured as an arc-shaped groove, and the center of the arc-shaped groove may be located on the rotation axis of the second cantilever 220, so as to be capable of matching with the rotation motion of the second cantilever 220 around the second rotation axis 700, and reduce the motion resistance of the limiting pin 820 to the second cantilever 220. Wherein, the limiting groove 810 may have two closed ends, so as to limit the maximum angle of rotation of the second suspension arm 220 by the abutting engagement of the ends and the limiting pin 820.

The jacking device 400 provided by the embodiment of the disclosure can be connected with a controller of a whole vehicle, after a collision occurs, the vehicle controller can rapidly send a signal to the jacking device 400, after the jacking device 400 receives the signal, the jacking release mechanism 300 is lifted upwards instantly, so that the first cantilever 210 and the second cantilever 220 are in an unlocking state, the second cantilever 220 moves upwards to jack up the engine hood, the rear part of the engine hood is lifted, the active bouncing of the hinge of the engine hood is realized, and a sufficient collision space is provided for protecting pedestrians.

In summary, the pop-up process of the hood hinge according to the embodiment of the present disclosure will be briefly described with reference to fig. 2 to 4. When a collision occurs, the vehicle control unit sends a signal to the jacking device 400, the jacking device 400 receives the signal and then moves upwards to contact with the jacking matching part 330, the driving body 310 rotates clockwise around the first rotating shaft 500, the locking part 320 is separated from locking matching with the locking piece 221, the first cantilever 210 and the second cantilever 220 are in an unlocking state, and the torsion spring 510 stores elastic restoring force; subsequently, the jacking matching part 330 moves to contact with the blocking wall 211 to drive the first cantilever 210 to move relative to the hinge base 100 through the connecting rod 600, meanwhile, the second cantilever 220 rotates clockwise around the second rotating shaft 700 relative to the first cantilever 210 to lift upwards, the limiting groove 810 slides upwards relative to the limiting pin 820, and in the process, when the second cantilever 220 moves to the position where the locking piece 221 is located above the locking part 320, the body 310 moves to the initial position under the elastic recovery action of the torsion spring 510; finally, when the end of the stopper groove 810 is engaged with the stopper pin 820, the second suspension arm 220 stops moving, thereby completing the pop-up process of the hood hinge. As mentioned above, the process of resetting the hood hinge can be referred to the description of the torsion spring 510, and will not be described herein.

The present disclosure also provides a vehicle, wherein the vehicle comprises the above-mentioned hood hinge. The vehicle has all the benefits of the hood hinge described above and will not be described in detail here.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A hood hinge, comprising:

the hinge base (100) is fixedly connected with the vehicle body;

a hinge boom (200) comprising a first boom (210) and a second boom (220), the first boom (210) being connected to the hinge base (100), the second boom (220) being connected to a hood;

a release mechanism (300) for releasably locking the first boom (210) and the second boom (220) in connection such that the first boom (210) and the second boom (220) have a locked state and an unlocked state; and

a jacking arrangement (400) for butting engagement with the release mechanism (300) to cause the first boom (210) and the second boom (220) to have the unlocked state by actuating the release mechanism (300) to move,

wherein, in the unlocking state, the release mechanism (300) can drive the first cantilever (210) to move, and the second cantilever (220) rotates relative to the first cantilever (210) to jack up the engine cover; when external force is applied to the engine cover, the second cantilever (220) can be moved downwards to reset and the release mechanism (300) is driven to move so as to switch from the unlocking state to the locking state.

2. The hood hinge according to claim 1, wherein the release mechanism (300) comprises a body (310) and a locking portion (320) formed on the body (310), the body (310) being connected to the first suspension arm (210), the locking portion (320) being in locking engagement with a locking member (221) on the second suspension arm (220).

3. The hood hinge according to claim 2, wherein the locking member (221) is configured as a fixed pin, and the locking portion (320) is configured as a locking hook capable of locking engagement with the fixed pin.

4. The hood hinge according to claim 2, wherein the body (310) is pivotably disposed on the first suspension arm (210) by a first rotation shaft (500), and when the lifting device (400) drives the release mechanism (300), the body (310) can rotate about the first rotation shaft (500) to disengage the locking portion (320) from the locking member (221).

5. The hood hinge according to claim 4, wherein the release mechanism (300) further comprises a torsion spring (510) disposed outside the first rotating shaft (500), the torsion spring (510) elastically abutting between the first suspension arm (210) and the body (310).

6. The hood hinge according to claim 2, wherein the body (310) further has a lift-engaging portion (330) formed thereon for engagement with the lift-up device (400), and the first suspension arm (210) has a blocking wall (211) formed thereon, and the blocking wall (211) is pushed to move when the lift-engaging portion (330) moves into contact with the blocking wall (211).

7. The hood hinge according to claim 1, characterized in that the first suspension arm (210) is rotatably connected to the hinge base (100) by a link (600).

8. The hood hinge according to claim 1, further comprising a second rotating shaft (700) connected between the first suspension arm (210) and the second suspension arm (220), the second suspension arm (220) rotating about the second rotating shaft (700) relative to the first suspension arm (210) in the unlocked state.

9. The hood hinge according to claim 1, wherein one of the first and second suspension arms (210, 220) has a stopper groove (810) formed thereon, and the other has a stopper pin (820) slidably fitted in the stopper groove (810) formed thereon.

10. A vehicle characterized by comprising a hood hinge according to any one of claims 1-9.