CN213115907U

CN213115907U - Active hood hinge

Info

Publication number: CN213115907U
Application number: CN202021346897.0U
Authority: CN
Inventors: 刘勇; 杨露; 金成国
Original assignee: Pinghe Jinggong Auto Parts Taicang Co ltd
Current assignee: Pinghe Jinggong Auto Parts Taicang Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-05-04
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses an active aircraft bonnet hinge, it includes: the hinge comprises a pin shaft B for connecting a first rotating arm and a second rotating arm together, a pin shaft A for connecting the first rotating arm and a fixed seat together, a spring baffle plate riveted on the first rotating arm, a lock hook and a torsion spring which are fixed on the first rotating arm through a lock hook pin, and a lock pin fixed on the second rotating arm, wherein the lock hook is abutted or released with the lock pin under the action of the torsion spring, so that the first rotating arm and the second rotating arm are stably connected in the radial direction of the pin shaft, namely the first rotating arm and the second rotating arm are stably connected under the condition that the lock hook is not unlocked, the hinge solves the problem that an active hood hinge cannot be repeatedly used, and increases the structural stability of the structure lifting hinge.

Description

Active hood hinge

Technical Field

The utility model relates to a car safety protection system field specifically is an active aircraft bonnet hinge.

Background

The rapid development of the automobile industry and science and technology has made automobiles become essential transportation means in daily life. With the increasing preservation of automobiles, traffic accidents are more and more frequent, and therefore, the safety of automobiles is more and more emphasized by people.

The survey result shows that: more than 50% of the collision process between pedestrians and vehicles is the collision between pedestrians and vehicles and the incidence rate of head collision injury in traffic accidents is as high as 54%. When a pedestrian collides with the front part of a vehicle, most accidents are that the pedestrian collides with the automobile and then collides with an engine cover, so that the head is seriously injured and even fatal. The traditional hinge has no enough deformation space and has hard points in the hinge area of the engine cover, so that the head of a pedestrian is easily injured when the pedestrian collides with a vehicle.

Currently, in the conventional front hood hinge system existing in the market, a main function is to play a role of connecting a vehicle body and an engine hood, and to allow the front hood to be opened and closed around a shaft. In the traffic at ordinary times, the collision of car and pedestrian takes place occasionally, and the kinetic energy that the car is small can all lead to the fact serious damage to the pedestrian, in view of the above, in order to alleviate the damage that the pedestrian bore in the accident, can realize through the vehicle in the collision process autonomic some kinetic energy of elimination.

Active pedestrian protection hinge system makes bonnet rear end bounce in the twinkling of an eye through when the car bumps, and the head that is hit the pedestrian falls on the sunken bonnet front end of relative rear end, and at this moment the cover makes as much as possible kinetic energy change into the variable property to reduce the damage of being hit the pedestrian.

In the prior art, at present, the active bounce type front cover hinge in the market is realized by a rotating mechanism, when the whole vehicle collides, the tail end of the front cover of the vehicle is lifted by a certain height to achieve the pedestrian protection function, the hinge used by the method can not be repeatedly used, and the hinge structure can not ensure the stable structure of the product.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at solving the not enough of prior art, provide an active aircraft bonnet hinge, solved the problem that active aircraft bonnet hinge can not used repeatedly to increase the structural stability that the structure promoted hinge itself.

The technical scheme is as follows: in order to achieve the above object, the present invention provides an active hood hinge, including: the hinge pin B is used for connecting the first rotating arm and the second rotating arm together, the hinge pin A is used for connecting the first rotating arm and the fixed seat together, the hinge pin A further comprises a spring baffle plate riveted on the first rotating arm, a lock hook and a torsion spring which are fixed on the first rotating arm through a lock hook pin, and a lock pin fixed on the second rotating arm, wherein the lock hook is abutted or released with the lock pin under the action of the torsion spring, so that the first rotating arm and the second rotating arm are stably connected in the radial direction of the hinge pin, namely, the first rotating arm and the second rotating arm are stably connected under the condition that the lock hook is not unlocked.

As the utility model discloses a further preferred, spring baffle pass through spring baffle round pin A and spring baffle round pin B riveting fixed on first swinging boom, spring baffle's both ends are riveted on first swinging boom, there is the clearance between spring baffle's centre department and the first swinging boom.

As the utility model discloses a further preferred, two tip of the department of overlapping of first swinging boom and second swinging boom be equipped with and be used for stable structure and spacing rivet A and rivet B for guarantee the stability between first swinging boom and the second swinging boom, ensure to connect stably no drunkenness.

As a further preferred aspect of the present invention, the second rotating arm has a protruding portion located outside the spring retainer and abutting against the spring retainer.

As a further preference of the present invention, the spring baffle and the first rotating arm between be equipped with the clearance that is used for the relative first rotating arm compression of spring baffle and kick-backs.

As a further preference of the utility model, spring baffle open the back, the size in clearance is greater than the size between the lug portion outside and the first swinging boom inboard between the spring baffle inboard and the first swinging boom inboard, through the flexibility and the resilience characteristic that utilize spring catch, after first swinging boom and second swinging boom unblock separation, spring baffle kick-backs under the pressurized state, prevents the fall-back of second swinging boom lifting height, simple structure is effective.

As a further preferred aspect of the present invention, the latch hook rotates about the lock pin by an angle of 10 ° to 20 °, and the latch hook and the lock pin are offset or released.

As a further preferred aspect of the present invention, the fixing base is connected to the frame, and the second rotary arm is connected to the cover.

Principle of operation

When the jacking device arranged below the lock hook is triggered, the lifting force of the jacking device can drive the lock hook to rotate around the lock hook pin, and after the lock hook rotates by 10-20 degrees, the lock hook and the lock pin are in a separated state, namely an unlocking state. Under the unblock state, first swinging boom and second swinging boom can be around the rotatory separation of round pin axle, and hinge under the separation state can the lifting by a take the altitude, makes the automobile front shroud also lifting by a take the altitude, reaches pedestrian's protection purpose. The second swinging boom is at the in-process of lifting, spring baffle has lost the spacing automatic resilience of lug portion, the second swinging boom lasts the lifting until having received rivet A spacing to the second swinging boom, the height of second swinging boom lifting has been restricted, the second swinging boom falls back, lug portion on the second swinging boom has been gone into by the card this moment in the spring baffle, when the hinge needs to reset, manual pressing spring baffle makes its compression deformation under pressure, reverse rotatory first swinging boom and second swinging boom, make the lug portion of second swinging boom offset with the spring baffle after the deformation, latch hook and lockpin closure once more this moment, reach the used repeatedly purpose.

Has the advantages that: an active aircraft bonnet hinge, compare with prior art, have following advantage:

1. the first rotating arm and the second rotating arm are fixedly connected through the rivet A and the rivet B in a riveting mode, so that the first rotating arm and the second rotating arm are stable in the axial direction;

2. the locking hook is abutted against or released from the locking pin under the action of the torsion spring, so that the problems of shaking and noise generated after the vehicle body is assembled due to weak connection between the first rotating arm and the second rotating arm are solved;

3. the rivet A is used as a limiting position of the first rotating arm and the second rotating arm after unlocking and separating, so that the lifting height of the machine cover is limited to be too high due to the fact that the lifting force of the jacking device is too large, and the problem that the lifting height of the machine cover exceeds the limit is solved;

4. the rivet A has a stabilizing effect and a limiting effect, the single structure has double functions, the assembly structure is simplified, the use cost is reduced, and the structure works stably;

5. use the spring baffle as down spacing, avoid the restriction because of the loss back of jacking ware lifting force, the cover that is lifted loses the holding power and drops and cause pedestrian's protect function inefficacy problem.

6. The spring baffle deforms under pressure, and after the first rotating arm and the second rotating arm are reversely rotated, the lock hook and the lock pin are locked again, so that the aim of repeated use is fulfilled.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of the latch hook and latch pin configuration;

fig. 4 is a schematic structural view of the utility model in a bounce state;

FIG. 5 is a schematic structural view of the protrusion being engaged with the spring retainer;

fig. 6 is a schematic structural diagram of reset.

Detailed Description

The invention will be further elucidated with reference to the drawings.

As shown in fig. 1, fig. 2 and fig. 3, the present invention provides an active hood hinge, which includes: the rotary locking device comprises a first rotary arm 1, a second rotary arm 2, a locking hook 3, a fixed seat 4, a pin shaft A5, a pin shaft B6, a rivet A7, a rivet B8, a lock pin 9, a locking hook pin 10, a torsion spring 11, a spring baffle 13 and a lug part 21.

The pin shaft B6 links together first swinging boom 1 and second swinging boom 2, the pin shaft A5 links together first swinging boom 1 and fixing base 4, the spring baffle 13 is riveted on first swinging boom 1 through spring baffle pin A12 and spring baffle pin B14, latch hook 3 and torsional spring 11 are fixed on first swinging boom 1 through riveting mode through latch hook pin 10, lockpin 9 is fixed on second swinging boom 2, latch hook 3 offsets or releases with lockpin 9 under the effect of torsional spring 11.

Example 1

The jacking device is arranged below the locking hook 3, when the jacking device is triggered, the lifting force of the jacking device can drive the locking hook 3 to rotate around the locking hook pin 9, and as shown in fig. 4, after the locking hook 3 rotates by 10 degrees, the locking hook 3 and the locking pin 9 are in a separated state, namely an unlocking state;

in an unlocking state, the first rotating arm 1 and the second rotating arm 2 rotate around the pin shaft B6, the end of the second rotating arm 2 is separated from the rivet B8 to separate the first rotating arm 1 from the second rotating arm 2, the second rotating arm 2 in the separating state is lifted, the front hood of the automobile connected with the second rotating arm 2 is also lifted, and the purpose of protecting pedestrians is achieved, in the lifting process of the second rotating arm 2, the spring baffle 13 loses the limiting and automatic rebounding of the bump part 21, the second rotating arm 2 is continuously lifted until the limiting and automatic rebounding of the rivet a7 on the second rotating arm 2 limits the lifting height of the second rotating arm 2, the second rotating arm 2 falls back, and the bump part 21 on the second rotating arm 2 is clamped into the spring baffle 13 at this time, as shown in fig. 5;

when the hinge needs to be reset, the spring baffle 13 is manually pressed to be compressed and deformed under pressure, the first rotating arm 1 and the second rotating arm 2 are reversely rotated, the convex part 21 of the second rotating arm 2 is abutted against the deformed spring baffle 13, and the locking hook 3 and the locking pin 9 are locked again at the moment, so that the purpose of reuse is achieved, as shown in fig. 6.

Example 2

The jacking device is arranged below the locking hook 3, when the jacking device is triggered, the lifting force of the jacking device can drive the locking hook 3 to rotate around the locking hook pin 9, and as shown in fig. 4, after the locking hook 3 rotates for 20 degrees, the locking hook 3 and the locking pin 9 are in a separated state, namely an unlocking state;

The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An active hood hinge, comprising: the round pin axle B (6) that link together first swinging boom (1) and second swinging boom (2), round pin axle A (5) that link together first swinging boom (1) and fixing base (4), its characterized in that: it still includes: spring baffle (13) on first swinging boom (1) of riveting, latch hook (3) and torsional spring (11) fixed on first swinging boom (1) through latch hook round pin (10) fix lockpin (9) on second swinging boom (2), latch hook (3) under the effect of torsional spring (11) with lockpin (9) counterbalance or release.

2. The active hood hinge of claim 1, wherein: the spring baffle (13) is riveted and fixed on the first rotating arm (1) through a spring baffle pin A (12) and a spring baffle pin B (14).

3. The active hood hinge of claim 1, wherein: two ends of the overlapping part of the first rotating arm (1) and the second rotating arm (2) are provided with a rivet A (7) and a rivet B (8) for stabilizing the structure.

4. The active hood hinge of claim 1, wherein: the lug part (21) on the second rotating arm (2) is positioned on the outer side of the spring baffle (13) and is abutted against the spring baffle (13).

5. The active hood hinge of claim 4, wherein: a gap for compressing and rebounding the spring baffle (13) relative to the first rotating arm (1) is arranged between the spring baffle (13) and the first rotating arm (1).

6. The active hood hinge of claim 5, wherein: after the spring baffle (13) is opened, the size of a gap between the inner side of the spring baffle (13) and the inner side of the first rotating arm (1) is larger than the size between the outer side of the bump part (21) and the inner side of the first rotating arm (1).

7. The active hood hinge of claim 1, wherein: the angle of rotation of the lock hook (3) around the lock pin (9) is 10-20 degrees.

8. The active hood hinge of claim 1, wherein: the fixed seat (4) is connected with the frame, and the second rotating arm (2) is connected with the cover.