CN114150955A

CN114150955A - Active hood hinge structure

Info

Publication number: CN114150955A
Application number: CN202111599521.XA
Authority: CN
Inventors: 崔胜皓; 金承完
Original assignee: Peiqiai Auto Parts Taicang Co ltd
Current assignee: Peiqiai Auto Parts Taicang Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-03-08

Abstract

The invention discloses an active hood hinge structure, comprising: first swinging boom, second swinging boom, short connecting rod, long connecting rod and fixing base, first swinging boom and second swinging boom, second swinging boom and short connecting rod, short connecting rod and fixing base respectively through rotatory pivot fixed together, the both ends of long connecting rod respectively with second swinging boom and fixing base riveting, it still includes: the latch hook comprises a latch hook seat, a latch hook pin, a release pin and a latch hook support, wherein the latch hook seat is fixed on the second rotating arm through the latch hook pin in a riveting mode, the release pin is fixed on the latch hook seat through the riveting mode and is buckled or separated with the latch hook support and the release pin which are installed on the first rotating arm, the active bounce function of the hood is achieved through the hinge, and the structural stability of the structure lifting hinge is improved.

Description

Active hood hinge structure

Technical Field

The invention relates to the field of automobile safety protection systems, in particular to an active hood hinge structure.

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.

In the prior art, the active bounce type hood hinge is realized by a rotating mechanism to lift the tail end of a hood of an automobile by a certain height when the whole automobile collides, so that the pedestrian protection function is achieved, and by adopting the method, the following defects are mainly existed: 1. the product has complex structure, more accessories and heavy weight; 2. the product assembly process is complex and the assembly procedures are multiple; 3. the hood hinge cannot be reused; 4. the stability of the connection of the rotating arms of the hood hinge structure is not good.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects of the background art, the invention discloses an active hood hinge structure.

The technical scheme is as follows: the invention discloses an active hood hinge structure, comprising: the automobile lifting device comprises a first rotating arm, a second rotating arm, a short connecting rod, a long connecting rod and a fixed seat, wherein the first rotating arm and the second rotating arm are riveted through a bounce shaft pin, the second rotating arm and the short connecting rod, the short connecting rod and the fixed seat are riveted through a rotation shaft pin respectively, and two ends of the long connecting rod are riveted with the second rotating arm and the fixed seat respectively, and the automobile lifting device is characterized in that a locking hook seat, a release pin, a locking hook support and a locking hook support pin are arranged on the locking hook seat, the locking hook seat is of a double-connecting-rod structure, a first connecting rod and a second connecting rod are formed by extending a rotating shaft part, the rotating shaft part is riveted on the second rotating arm through the locking hook pin, the end part of the first connecting rod is riveted with the release pin, the release pin penetrates through the second rotating arm, the second connecting rod is positioned above a lifting device of an automobile, the locking hook support is riveted on the first rotating arm through the locking hook support pin, and the locking hook support and the release pin penetrate through the end part of the second rotating arm to be clamped, the second connecting rod is pushed by the jacking device, the release pin rotates through the rotating shaft part, a first limiting hole for the second rotating arm to move is formed in the position, corresponding to the release pin, of the second rotating arm, the release pin moves in the first limiting hole and is separated from a clamping position of the lock hook support, the first rotating arm rotates and bounces under the action of the bouncing pin shaft, and a second limiting hole for the first rotating arm to move is formed in the position, corresponding to the release pin, of the first rotating arm; the upper part of the first rotating arm is connected with a hood of an automobile.

Furthermore, the angle range from the bounce pin shaft to the two ends of the second limiting hole is 11-20 degrees, and the bounce angle of the first rotating arm is limited.

Furthermore, the fixed seat is provided with an adjusting bolt capable of adjusting the extension length, and the adjusting bolt is abutted to the lower part of the short connecting rod.

Furthermore, one end of the lock hook support is fixed through a lock hook support pin, and the other end of the lock hook support is provided with a bayonet which is detachably clamped with the release pin.

Furthermore, the side edge of the second connecting rod of the latch hook seat horizontally extends to form a jacking stress part.

Has the advantages that: compared with the prior art, the invention has the advantages that:

1. the first rotating arm and the second rotating arm are connected through the lock hook, so that the problems of shaking and noise after the vehicle body is assembled are solved;

2. the first rotating arm is connected with the second rotating arm in a limiting mode, so that the problems that the lifting height of the hood is too high and the height exceeds the limit due to too large lifting force of the jacking device are limited;

3. the problem that the pedestrian protection function is invalid due to the fact that the lifted hood falls down after the lifting force of the jacking device is lost is solved by using the lower limiting structure;

4. the first rotating arm and the second rotating arm are reversely rotated, so that the lock hook and the lock hook support are locked again, and the aim of reuse is fulfilled;

5. the adjusting bolt is additionally arranged on the fixed seat and is abutted to the short connecting rod, so that the hinge is compact in overall structure, stable in working state and suitable for more vehicle types.

Drawings

FIG. 1 is a view of the latch hook base of the present invention;

FIG. 2 is a perspective view of the structure of FIG. 1;

FIG. 3 is a view of the latch hook bracket side of the present invention;

FIG. 4 is a perspective view of the structure of FIG. 3;

fig. 5 is a structural diagram of the invention in a state of being sprung by force.

Detailed Description

The technical solution of the present invention is further explained by the following examples and drawings.

As shown in fig. 1-5, an active hood hinge structure includes: first swinging boom 1, second swinging boom 2, short connecting rod 3, long connecting rod 4 and fixing base 5, first swinging boom 1 and second swinging boom 2 rivet through bounce-up pivot 13, second swinging boom 2 and short connecting rod 3, short connecting rod 3 and fixing base 5 rivet through rotatory pivot 10 respectively, the both ends of long connecting rod 4 rivet with second swinging boom 2 and fixing base 5 respectively, still include: the automobile locking hook comprises a locking hook seat 6, a release pin 7, a locking hook pin 8, a locking hook support 9 and a locking hook support pin 12, wherein the locking hook seat 6 is of a double-link structure, a rotating shaft part 601 extends to form a first link 602 and a second link 603, the rotating shaft part 601 is riveted on a second rotating arm 2 through the locking hook pin 8, the end part of the first link 602 is riveted with the release pin 7, the release pin 7 penetrates through the second rotating arm 2, the second link 603 is positioned above a jacking device of an automobile, the locking hook support 9 is riveted on the first rotating arm 1 through the locking hook support pin 12, the locking hook support 9 and the release pin 7 are clamped with the end part of the second rotating arm 2 in a penetrating manner, the second link 603 is pushed by the jacking device, the release pin 7 rotates through the rotating shaft part 601, a first limiting hole 201 for the second rotating arm 2 to move is formed in the position, corresponding to the release pin 7, the release pin 7 moves in the first limiting hole 201, the first rotating arm 1 is separated from the clamping position of the lock hook support 9, rotationally bounces under the action of the bounced pin shaft 13, and a second limiting hole 101 for the first rotating arm 1 to move is formed in the position, corresponding to the release pin 7, of the first rotating arm 1; the upper part of the first rotating arm 1 is connected with a hood of an automobile. The angle range from the bounce pin shaft 13 to the two ends of the second limiting hole 101 is 11-20 degrees so as to limit the corresponding bounce angle of the first rotating arm 1. And the fixed seat 5 is provided with an adjusting bolt 11 capable of adjusting the extension length, and the adjusting bolt is abutted against the lower part of the short connecting rod 3. One end of the lock hook support 9 is fixed through a lock hook support pin 12, and the other end of the lock hook support 9 is provided with a bayonet and detachably clamped with the release pin 7. The side edge of the second connecting rod 602 of the latch hook seat 6 extends horizontally to form a jacking stressed part.

When the jacking device arranged below the second connecting rod 602 of the latch hook seat 6 is triggered, the lifting force of the jacking device drives the first connecting rod 601 to rotate, the release pin 7 is separated from the latch hook support 9, and the first rotating arm 1 rotates and bounces, namely, the unlocking state is realized;

under the unblock state, first swinging boom 1, the rotatory separation of second swinging boom 2 bounce, but hinge lifting take the altitude under the separation state, and it is spacing to lead to through first spacing hole 201 and the spacing hole 101 of second, and the restriction causes aircraft bonnet lifting height too high because of the jacking ware lifting force is too big, highly surpasss the problem of restriction, reaches pedestrian's protection purpose.

Through the degree of depth of adjustment bolt 11 in second swinging boom 2, realize adjusting bolt 11 at the height on second swinging boom 2 surface to the clearance adjustment of flexible connection between control will first swinging boom 1 and second swinging boom 2 has solved the automobile body and has assembled the back and rock and the noise problem.

When the hood hinge needs to be reused, the release pin 7 rotates to the notch at the front end of the lock hook support 9 along the guide structure, a certain pressure is applied to the release pin 7, the lock hook support 9 deforms under the action of the pressure, the first rotating arm 1 and the second rotating arm 2 rotate reversely, the release pin 7 is clamped into the opening of the lock hook support 9, and the lock hook 6 and the lock hook support 9 are locked again, so that the purpose of reuse is achieved.

Claims

1. An active hood hinge structure comprising: first swinging boom (1), second swinging boom (2), short connecting rod (3), long connecting rod (4) and fixing base (5), first swinging boom (1) and second swinging boom (2) rivet through bounce pivot (13), second swinging boom (2) and short connecting rod (3), short connecting rod (3) and fixing base (5) rivet through rotatory pivot (10) respectively, the both ends of long connecting rod (4) rivet with second swinging boom (2) and fixing base (5) respectively, its characterized in that still includes: the automobile locking device comprises a locking hook seat (6), a release pin (7), a locking hook pin (8), a locking hook support (9) and a locking hook support pin (12), wherein the locking hook seat (6) is of a double-link structure and is formed by extending a rotating shaft part (601) to form a first connecting rod (602) and a second connecting rod (603), the rotating shaft part (601) is riveted on a second rotating arm (2) through the locking hook pin (8), the end part of the first connecting rod (602) is riveted with the release pin (7), the release pin (7) penetrates through the second rotating arm (2), the second connecting rod (603) is located above a jacking device of an automobile, the locking hook support (9) is riveted on the first rotating arm (1) through the locking hook support pin (12), the locking hook support (9) is clamped with the release pin (7) through the end part of the second rotating arm (2), the second connecting rod (603) is pushed by the jacking device, and the release pin (7) rotates through the rotating shaft part (601), a first limiting hole (201) for the second rotating arm (2) to move is formed in the position, corresponding to the release pin (7), of the second rotating arm, the release pin (7) moves in the first limiting hole (201) and is separated from a clamping position of the lock hook support (9), the first rotating arm (1) rotates and bounces under the effect of an bounced pin shaft (13), and a second limiting hole (101) for the first rotating arm to move is formed in the position, corresponding to the release pin (7), of the first rotating arm (1); the upper part of the first rotating arm (1) is connected with a hood of an automobile.

2. The active hood hinge structure of claim 1, wherein: the angle range from the bouncing pin shaft (13) to the two ends of the second limiting hole (101) is 11-20 degrees, and the bouncing angle of the first rotating arm (1) is limited.

3. The active hood hinge structure of claim 1, wherein: and the fixed seat (5) is provided with an adjusting bolt (11) capable of adjusting the extension length, and the adjusting bolt is abutted against the lower part of the short connecting rod (3).

4. The active hood hinge structure of claim 1, wherein: one end of the lock hook support (9) is fixed through a lock hook support pin (12), and the other end of the lock hook support is provided with a bayonet which is detachably clamped with the release pin (7).

5. The active hood hinge structure of claim 1, wherein: and the side edge of the second connecting rod (602) of the lock hook seat (6) horizontally extends to form a jacking stress part.