CN116252740A - Front cover lock with supporting function and vehicle with same - Google Patents

Abstract

The invention discloses a front cover lock with a supporting function and a vehicle thereof, comprising a locking structure and a locking structure, the locking structure is adapted to the locking structure, and the locking structure includes a locking hook and a locking structure. The connecting plate, the lock hook is stepped and has a first step and a second step, the first step is higher than the second step, and the first step and the second step are connected by an inclined edge; the lock When the hook is at the first position, the first step is supported on the locking structure, and the second step is at one side of the locking structure; when the locking hook is at the second position, the second step is supporting On the locking structure, the first step is located on the other side of the locking structure. The advantage of the present invention is that after the collision occurs, the lock hook slides in the locking structure, so that the front cover lock supports the front part of the front cover, increases the z-direction space between the front part of the front cover and the front compartment of the vehicle body, and realizes the front part of the front cover. The purpose of reducing pedestrian head collision injuries.

Description

Front cover lock with supporting function and vehicle with same

technical field

The invention relates to the technical field of vehicle pedestrian protection, in particular to a front cover lock with supporting function and a vehicle with the same.

Background technique

The existing active front cover for pedestrian protection, as shown in Figure 1, after the collision of the pedestrian, before the head of the pedestrian hits the front cover of the car, the trigger device receives the signal only at the rear of the front cover and pushes up the front cover. The position of the front cover lock hook is rotated relative to the front cover lock to achieve the purpose of reducing pedestrian head collision injuries. However, during the lifting process of the front cover rear part, the position of the front cover lock hook rotates relative to the front cover lock, and the front part of the front cover is locked all the time without lifting, which is not conducive to pedestrian head protection.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and provide a front cover lock with a supporting function and a vehicle with it. The lock hook of the front cover lock is set in a stepped shape. The rear part receives the signal from the trigger device and lifts up. At the same time, the lock hook slides in the locking structure, and the locking structure lifts up, so that the front cover lock supports the front part of the front cover, and the front part of the front cover lowers the pedestrian's head. The purpose of collision damage.

The present invention solves technical problem and adopts following technical scheme:

A front cover lock with a supporting function, comprising a locking structure and a locking structure, the locking structure is adapted to the locking structure, wherein the locking structure includes a locking hook and a connecting plate, and the locking hook Engage with the locking structure, lock the locking structure and the locking structure, the connecting plate is used to install the locking structure on the front cover, the locking hook is stepped, with a first a step and a second step, the first step is higher than the second step, and the first step and the second step are connected by an inclined edge; when the locking hook is in the first position, the first step is supported on On the locking structure, the second step is located on one side of the locking structure; when the locking hook is in the second position, the second step is supported on the locking structure, and the first step is located on the The other side of the locking structure.

Further, the first step and the second step are arranged in parallel.

Further, the length of the second step is not less than the x-direction width of the locking structure, so that when the locking hook is in the second position, the inclined edge can pass through the locking structure and be located outside the locking structure.

Further, a vehicle includes a front cover lock with a supporting function, the locking structure is fixed at the front of the front cabin, the locking structure is correspondingly fixed on the front cover, when the locking hook is in the first position, The second step is located between the locking structure and the air intake grille;

It also includes a trigger device and a trigger sensor, the trigger device is arranged at the rear of the front cabin, and can be extended upwardly towards the cab; the trigger sensor is arranged on the front bumper;

The extended length of the trigger device enables the second step to bear on the locking structure.

Further, the inclined side has an included angle φ with the first step, and the first step has an included angle θ with the extension direction of the trigger device, and the included angle φ is smaller than the included angle θ, so as to reduce the resistance when the lock hook slides .

Further, the number of the front cover locks is two, the lock structures are respectively arranged on both sides of the front part of the front cover, and the locking structures are correspondingly arranged on both sides of the front part of the front cabin, so that the front cover front The lower part is raised for more stability.

Further, the vehicle further includes an unlocking wire, one end of which is connected to the locking structure, and the other end is connected to the upper end of the trigger device, so that the locking structure is unlocked and the lock hook slides more conveniently.

Further, the upper end of the trigger device is provided with a trigger cap, and the unlocking wire is connected with the trigger cap.

Further, the number of the front cover lock is one.

Compared with the prior art, the invention has the beneficial effects of the front cover lock with supporting function and the vehicle with it as follows:

The lock hook of the front cover lock is set in a stepped shape, and the structure is simple; after the collision occurs, the rear of the front cover receives a signal from the trigger device and is lifted upwards, and at the same time, the lock hook slides in the locking structure, and the lock structure lifts up. Lift the front cover lock to support the front part of the front cover, increase the z-direction space between the front part of the front cover and the front cabin of the vehicle body, lift the front cover as a whole, the impact buffer space is larger, and the head collision damage of pedestrians is smaller. Realize the purpose of reducing pedestrian head collision injury at the front part of the front cover.

Description of drawings

Fig. 1 is a schematic structural view of the existing front cover used for pedestrian protection.

Fig. 2 is a structural diagram of the first position of the front cover lock with supporting function according to the present invention.

Fig. 3 is a schematic diagram of the structure of the second position of the front cover lock with supporting function according to the present invention.

Fig. 4 is a schematic diagram of the hook structure of the front cover lock with supporting function according to the present invention.

Fig. 5 is a structural schematic diagram of a first embodiment of a vehicle with a front cover lock according to the present invention.

Fig. 6 is a structural schematic diagram of a second embodiment of a vehicle with a front cover lock according to the present invention.

In the figure: 1-front cover lock; 11-lock structure; 111-lock hook; 1111-first step; 1112-second step; 1113-inclined edge; 112-connecting plate; Unlock drawing; 2-front cover; 3-hinge; 4-trigger device; 41-trigger cap; 5-unlock handle.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

In the description of the present invention, it should be understood that the terms "first", "second" and so on are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance. In addition, it should be noted that the term "front" refers to the direction toward the front of the vehicle, "rear" refers to the direction toward the rear of the vehicle, "x direction" refers to the direction of the length of the vehicle body, and "z direction" refers to the direction of the height of the vehicle body.

The present invention provides a front cover lock with a supporting function, as shown in Figure 2 and Figure 3, including a locking structure 11 and a locking structure 12, the locking structure 11 is adapted to the locking structure 12, wherein , the locking structure 11 includes a locking hook 111 and a connecting plate 112, the locking hook 111 engages with the locking structure 12, locks the locking structure 11 and the locking structure 12, and the connecting plate 112 It is used to install the locking structure 11 on the front cover 2 .

As shown in FIG. 4 , the lock hook 111 is stepped and has a first step 1111 and a second step 1112 , the first step 1111 is higher than the second step 1112 , and the first step 1111 and the second step 1112 They are connected by inclined sides 1113 . When the locking hook 111 is at the first position, the first step 1111 is supported on the locking structure 12, the second step 1112 is located at one side of the locking structure 12; the locking hook 111 is at the second position, the second step 1112 is supported on the locking structure 12 , and the first step 1111 is located on the other side of the locking structure 12 . Preferably, the first step 1111 and the second step 1112 are arranged in parallel. Preferably, the length of the second step 1112 is not less than the width of the locking structure 12 in the x direction, so that when the locking hook 111 is in the second position, the second step 1112 can completely cover the locking structure in the x direction. 12 , when the locking structure 12 is in the locked state, the inclined edge 1113 can pass through the locking structure 12 and be located outside the locking structure 12 .

first embodiment

The present invention also provides a vehicle, including a front cover lock 1 with a supporting function, a trigger device 4 and a trigger sensor. As shown in FIG. 11 is correspondingly fixed on the front cover 2. The trigger device 4 is arranged at the rear of the front cabin, and can be extended upwards towards the cab; the trigger sensor is arranged on the front bumper, preferably, the trigger sensor is a pressure tube.

When the vehicle is in normal use, the front cover 2 is fastened on the front compartment, at this time, the lock hook 111 is located at the first position, the first step 1111 is engaged with the locking structure 12, and the lock catch The structure 11 is locked with the locking structure 12 to lock the front cover 2 on the front cabin. When the front cover 2 needs to be opened, after pulling the main driving position unlocking handle in the car, the lock hook 111 completes the first gear unlocking and is popped up, and then the hand is stretched into the gap between the front cover 2 and the vehicle body to realize complete unlocking by pulling the unlocking handle 5. Unlocking, so that the first step 1111 can escape from the locking structure 12, thereby lifting the front cover 2. When the vehicle is running normally, the front cover 2 is locked on the front compartment, the first step 1111 is engaged with the locking structure 12, and the second step 1112 is located between the locking structure 12 and the air intake grille. between, that is, in front of the locking structure 12 .

In the event of a pedestrian collision, the legs first contact the front bumper, and the trigger sensor on the front bumper receives the collision pressure signal and provides a trigger signal to trigger the trigger device 4 at the rear of the front cabin before the head of the pedestrian hits the front cover 2 Work. The principle of the trigger device 4 is gunpowder blasting. The solid gunpowder is ignited and exploded by the current of the ignition signal to generate high-pressure gas. The gas pushes the ejector rod upward in the tube of the trigger device 4. The ejector rod moves upward according to the design direction instantaneously, realizing the jacking up according to the design direction. cover 2 to realize the lifting of the front cover 2. The front cover 2 is connected to the vehicle body through a hinge 3. Preferably, the trigger device 4 is extended and supported on the hinge 3 to prevent the trigger force from breaking down the front cover 2; when the trigger device 4 lifts the hinge 3, The connection structure of the hinge arm is disconnected, so that the trigger device 4 lifts up the rear part of the front cover 2, so that the front cover 2 moves obliquely backward. The trigger force generated during the blasting of gunpowder is very large, which can reach 3kN～5kN, and the front cover 2 moves obliquely backward together with the locking structure 11. At this time, the locking structure 11 is still locked with the locking structure 12, and the The extension length of the trigger device 4 is long enough, and the front cover 2 pulls the lock hook 111, so that the second step 1112 slides from the front of the locking structure 12 to the locking structure 12, so that the second step 1112 can be supported on On the locking structure 12, the front part of the front cover 2 is lifted. Both the front part and the rear part of the front cover 2 are lifted, so that the front cover 2 is lifted as a whole, the z-direction space between the front part of the front cover 2 and the front compartment of the vehicle body is increased, and the buffer space for descending after the head hits the front cover 2 is increased, The front part of the front cover 2 is realized to reduce the head collision injury of pedestrians.

The inclined side 1113 has an included angle φ with the first step 1111, and the first step 1111 has an included angle θ with the extension direction of the trigger device 4. Generally, there are two trigger devices 4, which are symmetrically arranged on both sides of the front cabin. side, although the lock hook 111 is not on the same plane as the trigger device 4, the plane where the lock hook 111 is located is parallel to the xz plane of the vehicle, and the trigger device 4 is also parallel to the xz plane of the vehicle. At this time, the included angle θ is the lock hook The included angle formed by 111 and the projection of the trigger device 4 on the xz plane of the vehicle. The locking hook 111 is pulled obliquely backward by the trigger force, so that the second step 1112 slides onto the locking structure 12. Preferably, the included angle φ is smaller than the included angle θ, so as to reduce the friction when the locking hook 111 slides. resistance.

Two front cover locks 1 can be provided, the locking structures 11 are respectively provided on both sides of the front part of the front cover 2, and the locking structures 12 are correspondingly provided on both sides of the front part of the front cabin, when the trigger device 4 When the front cover 2 is jacked up, the two front cover locks 1 slide to the second position to support the front cover 2, so that the front part of the front cover 2 can be lifted more stably.

second embodiment

In order to save effort when the locking hook 111 slides, as shown in FIG. , the upper end of the trigger device 4 is provided with a trigger cap 41 , and the unlocking wire 13 is connected to the trigger cap 41 . When the trigger device 4 works, the trigger device 4 extends obliquely rearward, lifts the trigger cap 41, and simultaneously pulls the unlocking wire 13 to unlock the locking structure 12, making it more convenient for the locking hook 111 to slide in the locking structure 12. Preferably, the number of the front cover lock 1 is set to one, the locking structure 12 is fixed in the middle of the front part of the front cabin, and the locking structure 11 is correspondingly fixed on the front cover 2 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (9)

1. A front cover lock with a supporting function, comprising a locking structure and a locking structure, the locking structure is compatible with the locking structure, characterized in that the locking structure includes a locking hook and a connecting plate, The lock hook is stepped and has a first step and a second step, the first step is higher than the second step, and the first step and the second step are connected by an inclined edge; the lock hook is located at the second step In the first position, the first step is supported on the locking structure, and the second step is located on one side of the locking structure; when the locking hook is in the second position, the second step is supported on the locking structure. On the locking structure, the first step is located on the other side of the locking structure. 2. The front cover lock with supporting function according to claim 1, characterized in that, the first step and the second step are arranged in parallel. 3. The front cover lock with supporting function according to claim 1 or 2, characterized in that the length of the second step is not less than the x-direction width of the locking structure. 4. A vehicle, characterized in that it comprises the front cover lock according to any one of claims 1-3, the locking structure is fixed on the front part of the front cabin, and the locking structure is correspondingly fixed on the front cover, When the locking hook is at the first position, the second step is located between the locking structure and the air intake grille; It also includes a trigger device and a trigger sensor, the trigger device is arranged at the rear of the front cabin, and can be extended upwardly towards the cab; the trigger sensor is arranged on the front bumper; The extended length of the trigger device enables the second step to bear on the locking structure. 5. The vehicle according to claim 4, wherein the inclined side and the first step have an included angle φ, the first step and the extending direction of the trigger device have an included angle θ, and the included angle φ is smaller than the included angle theta. 6. The vehicle according to claim 4 or 5, wherein the number of the front cover locks is two, the locking structures are respectively arranged on both sides of the front part of the front cover, and the locking structures correspond to It is arranged on both sides of the front part of the front cabin. 7. The vehicle according to claim 4, further comprising an unlocking wire, one end of the unlocking wire is connected to the locking structure, and the other end is connected to the upper end of the trigger device. 8 . The vehicle according to claim 7 , wherein a trigger cap is provided on the upper end of the trigger device, and the unlocking wire is connected to the trigger cap. 9. The vehicle according to claim 7 or 8, characterized in that there is one front cover lock.

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