Automobile door anti-collision beam assembly with buffering energy absorption structure

Abstract

The invention relates to the technical field of automobile accessories, in particular to an automobile door anti-collision beam assembly with a buffering and energy-absorbing structure, which comprises an automobile door anti-collision beam assembly main body, a foundation positioning beam with a rectangular structure is arranged on the automobile door anti-collision beam assembly main body, and an opening structure is arranged on one side of the foundation positioning beam. A collision beam is clamped at an opening of the foundation positioning beam, a circular-arc-shaped protruding structure is arranged on the collision beam, shock pads are bonded to the two ends of the collision beam respectively, a shock absorption filling piece is bonded to the inner side of the circular-arc-shaped portion of the collision beam, and an energy absorption mechanism and a metal sheet are arranged in the foundation positioning beam at intervals. According to the automobile door anti-collision beam assembly with the buffering and energy-absorbing structure, the basic positioning beam and the collision beam form a contact positioning structure, and the energy-absorbing mechanism and the elastic damping mechanism are arranged between the collision beam and the basic positioning beam, so that the buffering and energy-absorbing effect after collision can be effectively improved, and the safety performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, and specifically to an automotive door anti-collision beam assembly with a buffer energy absorption structure. Background Art

[0002] The automotive door anti-collision beam is an important part of the vehicle passive safety system. Its main function is to effectively absorb and disperse the impact energy during a side collision, thereby reducing the harm to the passengers inside the vehicle. The automotive door anti-collision beam is usually installed inside the door, between the door trim panel and the outer metal plate, and is mostly made of high-strength steel, aluminum alloy or composite materials.

[0003] In order to improve the energy absorption effect, the existing automotive door anti-collision beams are often designed into specific shapes, such as circular, U-shaped or hat-shaped, etc. For example, a structure of an automotive door anti-collision beam disclosed in the publication number CN218966645U solves the technical problem that the anti-collision effect of the door anti-collision beam itself in the prior art is poor, resulting in the door being unable to effectively slow down the impact force when being hit, and there are safety hazards. However, there are many structural components and the installation structure is complex, and at the same time, multi-stage buffer energy absorption treatment cannot be carried out. Summary of the Invention

[0004] The purpose of the present invention is to provide an automotive door anti-collision beam assembly with a buffer energy absorption structure to solve the problems in the above background art that there are many structural components in the automotive door anti-collision beam assembly on the current market, the installation structure is complex, and at the same time, multi-stage buffer energy absorption treatment cannot be carried out.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An automotive door anti-collision beam assembly with a buffer energy absorption structure, including the main body of the automotive door anti-collision beam assembly. A rectangular structure of a basic positioning beam is provided on the main body of the automotive door anti-collision beam assembly, and an opening structure is arranged on one side of the basic positioning beam. A collision beam is clamped at the opening of the basic positioning beam. An arc-shaped convex structure is provided on the collision beam, and shock pads are respectively bonded at both ends of the collision beam. A shock-absorbing filler is bonded to the inner side of the arc-shaped part of the collision beam. An energy absorption mechanism and metal sheets are arranged at intervals in the basic positioning beam, and end support tubes are clamped at both inner ends of the basic positioning beam. A positioning strip is also arranged between the end support tubes, and shock-absorbing connecting rods forming a V-shaped structure are evenly spaced between the positioning strip and the shock-absorbing filler.

[0006] Preferably, positioning columns penetrate through the upper and lower ends of the basic positioning beam at equal intervals, and the positioning columns are respectively movably penetrated and matched with the collision beam, the shock pads, the energy absorption mechanism and the metal sheets.

[0007] Preferably, mounting holes are jointly opened on the basic positioning beam and the end support tubes, and mounting bolts are arranged in the mounting holes.

[0008] Preferably, the end support pipe is of a rectangular pipe structure, and the collision beam, the positioning strip, the energy absorption mechanism and the metal sheet are respectively movably clamped between the end support pipes.

[0009] Preferably, the arc-shaped convex structure of the collision beam is located outside the basic positioning beam.

[0010] Preferably, the shock-absorbing filler is evenly and spacedly embedded and fixed with first connecting seats, and the tip parts of the V-shaped structures formed by the ends of the first connecting seats and the shock-absorbing connecting rods are respectively rotatably connected by pins.

[0011] Preferably, a T-shaped limiting groove is formed in the positioning strip, and a movable connecting piece and a fixed connecting piece are movably clamped in the T-shaped limiting groove.

[0012] Preferably, the upper end of the movable connecting piece is fixedly welded with a second connecting seat, and the other end of the second connecting seat and the shock-absorbing connecting rod are respectively rotatably connected by pins.

[0013] Preferably, the movable connecting piece and the positioning strip are movably clamped through the T-shaped limiting groove, the fixed connecting piece and the positioning strip are bolted tightly, and the movable connecting pieces are respectively arranged on both sides of the fixed connecting piece.

[0014] Preferably, a buffer spring penetrates through the fixed connecting piece, and both ends of the buffer spring are fastened to the second connecting seat through hook structures respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The automobile door anti-collision beam assembly with a buffer energy absorption structure is composed of a basic positioning beam and a collision beam to form a contact positioning structure, and an energy absorption mechanism and an elastic shock-absorbing mechanism are arranged between the collision beam and the basic positioning beam, which can effectively improve the buffer energy absorption effect after a collision, thereby improving the safety performance. The automobile door anti-collision beam assembly with a buffer energy absorption structure is provided with positioning columns penetrating through the collision beam and the energy absorption mechanism in the basic positioning beam, which can conduct guiding treatment for buffer energy absorption, and a buffer spring is fixed between the collision beam and the energy absorption mechanism through a shock-absorbing connecting rod, which can realize multi-stage buffer energy absorption treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an automobile door anti-collision beam assembly with a buffer energy absorption structure according to the present invention;

[0017] Figure 2 is an enlarged structural diagram of part A in an automobile door anti-collision beam assembly with a buffer energy absorption structure according to the present invention Figure 1 in the present invention;

[0018] Figure 3 is a schematic structural diagram of the relative position of the positioning strip and the collision beam of an automobile door anti-collision beam assembly with a buffer energy absorption structure according to the present invention;

[0019] Figure 4 Schematic diagram of the connection structure between the positioning strip and the metal sheet of a car door anti-collision beam assembly with a buffer energy-absorbing structure according to the present invention;

[0020] Figure 5 Schematic diagram of the position structure of the collision beam relative to the basic positioning beam of a car door anti-collision beam assembly with a buffer energy-absorbing structure according to the present invention;

[0021] Figure 6 A car door anti-collision beam assembly with a buffer energy-absorbing structure according to the present invention Figure 5 Enlarged structure diagram at position B in the

[0022] In the figure: 1. Main body of the car door anti-collision beam assembly; 2. Basic positioning beam; 201. Mounting hole; 202. Positioning column; 3. End support tube; 4. Collision beam; 401. Shock pad; 5. Shock-absorbing filling member; 501. First connection seat; 6. Positioning strip; 601. Movable connecting member; 602. Second connection seat; 603. Buffer spring; 604. T-shaped limit groove; 605. Fixed connecting member; 7. Energy-absorbing mechanism; 8. Metal sheet; 9. Mounting bolt; 10. Shock-absorbing connecting rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-6, the present invention provides a technical solution: an automobile door anti-collision beam assembly with a buffer energy absorption structure, including the main body 1 of the automobile door anti-collision beam assembly. A rectangular foundation positioning beam 2 is provided on the main body 1 of the automobile door anti-collision beam assembly. An opening structure is provided on one side of the foundation positioning beam 2, and a collision beam 4 is clamped at the opening of the foundation positioning beam 2. An arc-shaped convex structure is provided on the collision beam 4, and shock-absorbing pads 401 are respectively bonded to both ends of the collision beam 4. The arc-shaped convex structure of the collision beam 4 is located outside the foundation positioning beam 2. This structure enables the collision beam 4 to be affected by the collision first after the door is impacted. Through the buffer energy absorption structure provided between the collision beam 4 and the foundation positioning beam 2, the anti-collision effect is ensured. A shock-absorbing filler 5 is bonded to the inner side of the arc-shaped part of the collision beam 4. First connecting seats 501 are evenly and spacedly embedded and fixed in the shock-absorbing filler 5. The tip parts of the V-shaped structures formed by the ends of the first connecting seats 501 and the shock-absorbing connecting rods 10 are respectively rotationally connected by pins. This structure enables the shock-absorbing connecting rods 10 to be rotated respectively under the positioning of the first connecting seats 501, so that the collision beam 4 has a space for buffer energy absorption, and the shock-absorbing filler 5 can further enhance the buffer energy absorption effect of the collision beam 4. Energy absorption mechanisms 7 and metal sheets 8 are provided at intervals in the foundation positioning beam 2. Positioning columns 202 penetrate through the upper and lower ends of the foundation positioning beam 2 evenly and spacedly, and the positioning columns 202 are respectively movably penetrated and matched with the collision beam 4, the shock-absorbing pads 401, the energy absorption mechanisms 7, and the metal sheets 8. This structure can, after the collision beam 4, the shock-absorbing pads 401, the energy absorption mechanisms 7, and the metal sheets 8 are installed, conduct active guiding treatment on the collision beam 4, the shock-absorbing pads 401, the energy absorption mechanisms 7, and the metal sheets 8 through the positioning columns 202, so that after the main body 1 of the automobile door anti-collision beam assembly is impacted, shock absorption and energy absorption limit treatment can be carried out. End support tubes 3 are clamped at both inner ends of the foundation positioning beam 2. Installation holes 201 are commonly opened on the foundation positioning beam 2 and the end support tubes 3, and installation bolts 9 are provided in the installation holes 201. This structure can form a foundation positioning treatment through the foundation positioning beam 2 to ensure the reliable connection between the foundation positioning beam 2 and the door, and provide a reliable positioning structure for buffer energy absorption. The end support tubes 3 are of rectangular tube structure, and the collision beam 4, the positioning strips 6, the energy absorption mechanisms 7, and the metal sheets 8 are respectively movably clamped between the end support tubes 3. This structure can reinforce the end positions of the foundation positioning beam 2 through the end support tubes 3 to ensure the stability of the positioning of the main body 1 of the automobile door anti-collision beam assembly. A positioning strip 6 is also provided between the end support tubes 3. A T-shaped limiting groove 604 is opened in the positioning strip 6, and a movable connecting piece 601 and a fixed connecting piece 605 are movably clamped in the T-shaped limiting groove 604. This structure enables the movable connecting piece 601 and the fixed connecting piece 605 to move in the positioning strip 6 to achieve position adjustment, and the T-shaped limiting groove 604 can prevent the movable connecting piece 601 and the fixed connecting piece 605 from falling off. The upper end of the movable connecting piece 601 is fixed by welding with a second connecting seat 602,Moreover, the second connecting seat 602 and the other end of the shock-absorbing connecting rod 10 are respectively rotatably connected by a pin. This structure enables the shock-absorbing connecting rod 10 to be inclined and installed between the collision beam 4 and the positioning strip 6. After the collision beam 4 is impacted, it can drive the shock-absorbing connecting rod 10 to move, thereby realizing the buffering function. The movable connecting piece 601 and the positioning strip 6 are movably engaged through the T-shaped limiting groove 604, and the fixed connecting piece 605 and the positioning strip 6 are bolted and fastened. Moreover, the movable connecting piece 601 is respectively arranged on both sides of the fixed connecting piece 605. In the case where the fixed connecting piece 605 is in a fixed state, this structure can play a role in actively restricting the movable connecting piece 601 through the buffer spring 603. And shock-absorbing connecting rods 10 forming a V-shaped structure are evenly spaced between the positioning strip 6 and the shock-absorbing filling member 5. The buffer spring 603 penetrates through the fixed connecting piece 605, and both ends of the buffer spring 603 are fastened to the second connecting seat 602 through a hook structure. This structure can realize the reset of the movable connecting piece 601 through the rebounding force of the buffer spring 603.

[0025] Working principle: When using the automobile door anti-collision beam assembly with a buffer energy absorption structure, first, the energy absorption mechanism 7 is arranged between the metal sheets 8 to form an energy absorption structure. Then, the positioning strip 6 is fixed on the outermost metal sheet 8. Shock pads 401 are bonded to both sides of the collision beam 4, and a shock-absorbing filling member 5 is bonded inside the arc-shaped structure of the collision beam 4. At the same time, one end of the shock-absorbing connecting rod 10 is respectively fixed to the first connecting seat 501 through a pin, and then the second connecting seat 602 and the other end of the shock-absorbing connecting rod 10 are connected by a pin. Next, the buffer spring 603 is penetrated into the fixed connecting piece 605, and both ends of the buffer spring 603 are fastened to the movable connecting piece 601 through hooks. Then, the movable connecting piece 601 and the fixed connecting piece 605 are sequentially clamped into the T-shaped limiting groove 604 to realize the fixation of the collision beam 4 relative to the positioning strip 6. After that, the collision beam 4 and the energy absorption mechanism 7 are clamped into the basic positioning beam 2. The arc-shaped structure of the collision beam 4 is located outside the basic positioning beam 2. The positioning columns 202 are evenly spaced and penetrate into the basic positioning beam 2 to realize the movable penetration of the positioning columns 202 with the collision beam 4, the shock pads 401, the energy absorption mechanism 7, and the metal sheets 8, ensuring the buffer energy absorption effect. Finally, the end support pipes 3 are clamped to both ends of the basic positioning beam 2, and the mounting bolts 9 can mount the main body 1 of the automobile door anti-collision beam assembly into the automobile door from the mounting holes 201. After the main body 1 of the automobile door anti-collision beam assembly is impacted, the collision beam 4 moves through the collision, causing the first connecting seat 501 to displace, thus causing the shock-absorbing connecting rod 10 to rotate. The shock-absorbing connecting rod 10 pushes the movable connecting piece 601, and then the movable connecting piece 601 pulls the buffer spring 603 to realize buffering. At the same time, the force received by the positioning strip 6 acts on the energy absorption mechanism 7, and the metal sheets 8 play a role in fixing the energy absorption mechanism 7 to ensure balanced force, thereby completing a series of operations.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automobile door anti-collision beam assembly with a buffer energy absorption structure, comprising an automobile door anti-collision beam assembly body (1), characterized in that: The main body (1) of the automobile door anti-collision beam assembly is provided with a rectangular basic positioning beam (2), and an opening structure is provided on one side of the basic positioning beam (2), and a collision beam (4) is clamped at the opening of the basic positioning beam (2), the collision beam (4) is provided with an arc-shaped protrusion structure, and shock-absorbing pads (401) are respectively bonded to the two ends of the collision beam (4), and a shock-absorbing filling piece (5) is bonded to the inner side of the arc-shaped part of the collision beam (4), and an energy absorption mechanism (7) and a metal sheet (8) arranged at intervals are provided in the basic positioning beam (2), and end support tubes (3) are clamped at the two ends of the inner side of the basic positioning beam (2), and positioning strips (6) are also provided between the end support tubes (3), and shock-absorbing connecting rods (10) forming a V-shaped structure are evenly spaced between the positioning strips (6) and the shock-absorbing filling piece (5).

2. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The upper and lower ends of the basic positioning beam (2) are evenly spaced and penetrated by positioning columns (202), and the positioning columns (202) are movably penetrated and matched with the collision beam (4), the shock absorbing pad (401), the energy absorbing mechanism (7) and the metal sheet (8).

3. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The foundation positioning beam (2) and the end support tube (3) are both provided with a mounting hole (201), and a mounting bolt (9) is provided in the mounting hole (201).

4. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The end support tube (3) is a rectangular tube structure, and the collision beam (4), the positioning strip (6), the energy absorption mechanism (7) and the metal sheet (8) are respectively movably clamped between the end support tubes (3).

5. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The arc-shaped protruding structure of the collision beam (4) is located outside the basic positioning beam (2).

6. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The first connecting seats (501) are evenly spaced and embedded in the shock-absorbing filling member (5), and the ends of the first connecting seats (501) are rotatably connected to the tip of the V-shaped structure formed by the shock-absorbing connecting rod (10) through a latch.

7. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 1, characterized in that: The positioning strip (6) is provided with a T-shaped limiting groove (604), and the T-shaped limiting groove (604) is movably engaged with a movable connecting piece (601) and a fixed connecting piece (605).

8. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 7, characterized in that: The upper end of the movable connecting member (601) is fixed with a second connecting seat (602) by welding, and the second connecting seat (602) and the other end of the shock-absorbing connecting rod (10) are rotatably connected by a latch.

9. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 8, characterized in that: The movable connecting member (601) and the positioning bar (6) are movably engaged through the T-shaped limiting groove (604), and the fixed connecting member (605) and the positioning bar (6) are fastened with bolts, and the movable connecting member (601) is respectively arranged on both sides of the fixed connecting member (605).

10. The automobile door anti-collision beam assembly with a buffer energy absorption structure according to claim 9, characterized in that: A buffer spring (603) runs through the fixed connection member (605), and two ends of the buffer spring (603) are respectively fastened to the second connection seat (602) via hook structures.

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