Anti-collision cross beam for left front side door of automobile

Abstract

The automobile left front side door anti-collision beam comprises an anti-collision beam body, a force unloading part is arranged on the surface of the anti-collision beam body, first mounting plates are fixedly connected to the front side and the rear side of the anti-collision beam body, a base plate is fixedly connected to the bottom end of the anti-collision beam body, and second mounting plates are fixedly connected to the front side and the rear side of the base plate. The top end of the base plate is fixedly connected with a connecting frame. The first mounting plate and the second mounting plate are fixed to the vehicle door through the bolts, so that mounting of the anti-collision beam body is completed, when the vehicle door is collided, external force acts on the vehicle door on the outer side, and the anti-collision beam body is extruded inwards; the middle of the anti-collision beam body extends towards the left side and the right side and deforms after being subjected to external force, and meanwhile, due to the fact that a certain angle exists between the force unloading part and the anti-collision beam body, the side face of the anti-collision beam body deforms along the inclined face, and therefore the situation that an outer vehicle door directly acts on an inner shell after being collided is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of anti-collision beams, in particular to an anti-collision beam for a left front door of an automobile. Background Art

[0002] The side door anti-collision beam, also known as the car door anti-collision beam, refers to the addition of a crossbeam to the internal structure of the car door to strengthen the structure of the side of the vehicle, thereby increasing the anti-collision resistance during side impact to enhance side safety. The car door anti-collision beam serves as an additional energy-absorbing protection that can reduce the external force that the occupants may suffer.

[0003] According to publication number CN218477399U, a vehicle door anti-collision beam includes an anti-collision beam body and a mounting plate, wherein the two ends of the anti-collision beam body in the length direction are respectively connected to one end of the mounting plate, and the other end of the mounting plate is connected to the vehicle door, and the anti-collision beam body includes an anti-collision portion and a fixing portion, wherein the anti-collision portion abuts against the vehicle door through the fixing portion, and the projection of the anti-collision portion in the length direction parallel to the anti-collision beam body is U-shaped, and the projection of the fixing portion in the length direction parallel to the anti-collision beam body is respectively connected to the outer surfaces of the two side walls at the U-shaped opening corresponding to the anti-collision portion. Compared with the existing tubular structure, the anti-collision beam body has a larger and more even force-bearing area under the same bearing force, and at the same time has the advantages of small space occupation, low cost, light weight and high performance.

[0004] The above-mentioned anti-collision part and other structures can make the force-bearing area of ​​the anti-collision beam body larger and more evenly distributed. However, since its projection in the length direction is U-shaped, when the anti-collision beam body is hit, the external force is easily applied directly to the vehicle door through the anti-collision beam body, thereby causing damage to the vehicle door and reducing the overall anti-collision capability. Summary of the invention

[0005] The object of the present invention is to provide an anti-collision beam for the left front door of an automobile to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-collision beam for the left front door of an automobile, comprising an anti-collision beam main body, a force unloading portion being arranged on the surface of the anti-collision beam main body, a first mounting plate being fixedly connected to the front and rear sides of the anti-collision beam main body, a base plate being fixedly connected to the bottom end of the anti-collision beam main body, a second mounting plate being fixedly connected to the front and rear sides of the base plate, a connecting frame being fixedly connected to the top end of the base plate, a filling cavity being formed by the connecting frame and the anti-collision beam main body, an elastic filling material being arranged inside the filling cavity, and reinforcing ribs being arranged inside the elastic filling material.

[0007] As a further preferred embodiment of the present technical solution, the anti-collision beam body adopts an arc structure, the cross-section of the anti-collision beam body is a hat shape, the force unloading part and the anti-collision beam body are inclined at a certain angle, the number of the first mounting plates is two, the shape and size of the second mounting plate and the first mounting plate correspond, and two guide grooves are provided at the bottom of the base plate.

[0008] As a further preferred embodiment of the present technical solution, the bottom end of the substrate is fixedly connected to a first connecting block, the bottom end of the first connecting block is rotatably connected to an adjustment plate, the side of the adjustment plate away from the first connecting block is rotatably connected to a rotating seat, the bottom end of the rotating seat is fixedly connected to a slider, the bottom end of the slider is provided with a fixed plate, and a sliding groove is provided on the top of the fixed plate.

[0009] As a further preferred embodiment of the present technical solution, the number of the first connecting blocks is two, the number of the adjusting plates corresponds to the number of the first connecting blocks, the sliding block adopts a U-shaped structure, and the sliding block is adapted to the sliding groove.

[0010] As a further preferred embodiment of the present technical solution, the side of the adjustment plate away from the first mounting plate is fixedly connected to a second connecting block, the inside of the second connecting block is rotatably connected to a first rotating plate, the side of the first rotating plate away from the second connecting block is rotatably connected to a second rotating plate, the side of the second rotating plate close to the first rotating plate is fixedly connected to a first spring, and the first spring and the first rotating plate are fixedly connected.

[0011] As a further preferred embodiment of the present technical solution, the top end of the fixed plate is fixedly connected to a cylinder body, the interior of the cylinder body is slidably connected to a floating piston, the interior of the cylinder body is slidably connected to a damping piston, the top end of the damping piston is fixedly connected to a piston rod, and the surface of the piston rod is movably sleeved with a second spring.

[0012] As a further preferred embodiment of the present technical solution, there are two cylinder bodies, high-pressure nitrogen is arranged between the bottom of the floating piston and the cylinder body, damping oil is arranged between the top of the floating piston and the cylinder body, the damping piston is located inside the damping oil, and the piston rod and the guide groove are matched.

[0013] The present invention provides an anti-collision beam for the left front door of an automobile, which has the following beneficial effects:

[0014] (1) The present invention uses bolts to fix the first mounting plate and the second mounting plate to the vehicle door, thereby completing the installation of the anti-collision beam body. When the vehicle door is hit, external force acts on the outer door and squeezes the anti-collision beam body inward. Since the anti-collision beam body adopts an arc structure, the middle part of the anti-collision beam extends to the left and right sides and deforms after being subjected to external force. At the same time, since there is a certain angle between the force unloading part and the anti-collision beam body, the side surface thereof deforms along the inclined surface, thereby preventing the outer door from directly acting on the internal shell after being hit.

[0015] (2) According to the present invention, after the outer door is hit, the anti-collision beam body is squeezed inward by force, so that the adjustment plate rotates in the first connecting block and the rotating seat, and pushes the slider to slide in the sliding groove of the fixed plate. At the same time, the first rotating plate and the second rotating plate rotate relative to each other, and the angle between them changes. The first spring is stretched, and the anti-collision beam body is supported by the sliding of the slider and the deformation of the first spring, thereby improving the anti-collision ability of the anti-collision beam body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the unfolded structure of the anti-collision beam body and the base plate of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the first rotating plate and the second rotating plate of the present invention;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the cylinder body of the present invention.

[0021] In the figure: 1. anti-collision beam body; 2. force unloading part; 3. first mounting plate; 4. base plate; 5. second mounting plate; 6. connecting frame; 7. filling cavity; 8. elastic filling material; 9. reinforcing rib; 10. first connecting block; 11. adjusting plate; 12. rotating seat; 13. slider; 14. fixing plate; 15. slide groove; 16. second connecting block; 17. first rotating plate; 18. second rotating plate; 19. first spring; 20. cylinder body; 21. floating piston; 22. damping piston; 23. piston rod; 24. second spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The present invention provides a technical solution: Figure 1 and Figure 5As shown, in the present embodiment, a left front door anti-collision beam of a car comprises an anti-collision beam body 1, a force unloading portion 2 is arranged on the surface of the anti-collision beam body 1, a first mounting plate 3 is fixedly connected to the front and rear sides of the anti-collision beam body 1, a base plate 4 is fixedly connected to the bottom end of the anti-collision beam body 1, a second mounting plate 5 is fixedly connected to the front and rear sides of the base plate 4, a connecting frame 6 is fixedly connected to the top end of the base plate 4, a filling cavity 7 is formed by the connecting frame 6 and the anti-collision beam body 1, an elastic filling material 8 is arranged inside the filling cavity 7, and a reinforcing rib 9 is arranged inside the elastic filling material 8.

[0024] The installation of the anti-collision beam body 1 is completed by fixing the first mounting plate 3 and the second mounting plate 5 to the vehicle door with bolts. When the vehicle door is hit, external force acts on the outer door and squeezes the anti-collision beam body 1 inward. Since the anti-collision beam body 1 adopts an arc structure, its middle part extends to the left and right sides and deforms after being subjected to external force. At the same time, since there is a certain angle between the force unloading part 2 and the anti-collision beam body 1, its side surface is deformed along the inclined surface, thereby preventing the outer door from directly acting on the internal shell after being hit, and supporting the anti-collision beam body 1 through the elastic filling material 8 and the reinforcing ribs 9 to improve its compressive resistance.

[0025] The anti-collision beam body 1 adopts an arc structure, the cross-section of the anti-collision beam body 1 is a hat shape, the force unloading part 2 and the anti-collision beam body 1 are inclined at a certain angle, there are two first mounting plates 3, the second mounting plate 5 and the first mounting plate 3 have corresponding shapes and sizes, and two guide grooves are provided at the bottom of the base plate 4.

[0026] The bottom end of the base plate 4 is fixedly connected to a first connecting block 10, the bottom end of the first connecting block 10 is rotatably connected to an adjusting plate 11, the side of the adjusting plate 11 away from the first connecting block 10 is rotatably connected to a rotating seat 12, the bottom end of the rotating seat 12 is fixedly connected to a sliding block 13, the bottom end of the sliding block 13 is provided with a fixing plate 14, and the top of the fixing plate 14 is provided with a sliding groove 15.

[0027] There are two first connection blocks 10 , and the number of the adjustment plates 11 corresponds to the number of the first connection blocks 10 . The slider 13 adopts a U-shaped structure, and the slider 13 and the slide groove 15 are matched.

[0028] A second connecting block 16 is fixedly connected to the side of the adjusting plate 11 away from the first mounting plate 3, a first rotating plate 17 is rotatably connected inside the second connecting block 16, a second rotating plate 18 is rotatably connected to the side of the first rotating plate 17 away from the second connecting block 16, a first spring 19 is fixedly connected to the side of the second rotating plate 18 close to the first rotating plate 17, and the first spring 19 and the first rotating plate 17 are fixedly connected.

[0029] After the outer door is hit, the anti-collision beam body 1 is squeezed inwardly, causing the adjustment plate 11 to rotate in the first connecting block 10 and the rotating seat 12, and pushing the slider 13 to slide in the slide groove 15 of the fixed plate 14. At the same time, the first rotating plate 17 and the second rotating plate 18 rotate relative to each other, and their angles change. The first spring 19 is stretched, and the anti-collision beam body 1 is supported by the sliding of the slider 13 and the deformation of the first spring 19, thereby improving the anti-collision ability of the anti-collision beam body 1.

[0030] The top of the fixed plate 14 is fixedly connected to a cylinder body 20, a floating piston 21 is slidably connected inside the cylinder body 20, a damping piston 22 is slidably connected inside the cylinder body 20, a piston rod 23 is fixedly connected to the top of the damping piston 22, and a second spring 24 is movably sleeved on the surface of the piston rod 23.

[0031] When the anti-collision beam body 1 is deformed, the piston rod 23 slides in the guide groove of the base plate 4 and drives the damping piston 22 to compress the damping oil inward. The oil pressure below the damping piston 22 increases, causing the damping oil to move to above the damping piston 22 through the piston valve. The movement of the damping oil forms a damping effect, thereby reducing the deformation of the anti-collision beam body 1 and improving the protection capability of the vehicle door.

[0032] There are two cylinder bodies 20 , high-pressure nitrogen is provided between the bottom of the floating piston 21 and the cylinder body 20 , damping oil is provided between the top of the floating piston 21 and the cylinder body 20 , the damping piston 22 is located inside the damping oil, and the piston rod 23 is adapted to the guide groove.

[0033] The present invention provides an anti-collision beam for the left front door of an automobile, and the specific working principle is as follows:

[0034] When in use, the first mounting plate 3 and the second mounting plate 5 are fixed to the vehicle door by bolts, thereby completing the installation of the anti-collision beam body 1, and the fixing plate 14 is installed on the vehicle door by bolts. When the vehicle door is hit, external force acts on the outer door and squeezes the anti-collision beam body 1 inward. Since the anti-collision beam body 1 adopts an arc structure, after being subjected to external force, its middle part extends to the left and right sides and deforms, and its side surfaces extend to the front and rear sides along the inclined surface where the force unloading part 2 is located and deform. The base plate 4 approaches the inner door, so that the adjustment plate 11 rotates in the first connecting block 10 and the rotating seat 12, and pushes the slider 13 in the slide groove 1 of the fixing plate 14. 5, and the first rotating plate 17 and the second rotating plate 18 rotate relatively, and the angle thereof changes, and the first spring 19 is stretched. The movement of the anti-collision beam body 1 is supported by the sliding of the slider 13 and the deformation of the first spring 19, so as to prevent the outer door from directly acting on the inner shell after being hit. At the same time, the piston rod 23 slides in the guide groove of the base plate 4, and drives the damping piston 22 to compress the damping oil inwardly. The oil pressure below the damping piston 22 increases, so that the damping oil moves to the top of the damping piston 22 through the piston valve, and a damping effect is formed by the movement of the damping oil, thereby reducing the deformation degree of the anti-collision beam body 1 and improving the protection capability of the door.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-collision beam for a left front door of an automobile, comprising an anti-collision beam body (1), characterized in that: A force unloading portion (2) is provided on the surface of the anti-collision beam body (1); a first mounting plate (3) is fixedly connected to the front and rear sides of the anti-collision beam body (1); a base plate (4) is fixedly connected to the bottom end of the anti-collision beam body (1); a second mounting plate (5) is fixedly connected to the front and rear sides of the base plate (4); a connecting frame (6) is fixedly connected to the top end of the base plate (4); a filling cavity (7) is formed by the connecting frame (6) and the anti-collision beam body (1); an elastic filling material (8) is provided inside the filling cavity (7); and a reinforcing rib (9) is provided inside the elastic filling material (8).

2. The anti-collision beam for the left front door of an automobile according to claim 1, characterized in that: The anti-collision beam body (1) adopts an arc-shaped structure, the cross-section of the anti-collision beam body (1) is hat-shaped, the force unloading portion (2) and the anti-collision beam body (1) are inclined at a certain angle, the number of the first mounting plates (3) is two, the shape and size of the second mounting plate (5) and the first mounting plate (3) correspond, and the bottom of the base plate (4) is provided with two guide grooves.

3. The anti-collision beam for the left front door of an automobile according to claim 1, characterized in that: The bottom end of the base plate (4) is fixedly connected to a first connection block (10), the bottom end of the first connection block (10) is rotatably connected to an adjustment plate (11), a side of the adjustment plate (11) away from the first connection block (10) is rotatably connected to a rotating seat (12), the bottom end of the rotating seat (12) is fixedly connected to a sliding block (13), the bottom end of the sliding block (13) is provided with a fixing plate (14), and a sliding groove (15) is provided on the top of the fixing plate (14).

4. The anti-collision beam for the left front door of an automobile according to claim 3, characterized in that: The number of the first connection blocks (10) is two, the number of the adjustment plates (11) and the number of the first connection blocks (10) correspond to each other, the sliding block (13) adopts a U-shaped structure, and the sliding block (13) and the sliding groove (15) are matched.

5. The anti-collision beam for the left front door of an automobile according to claim 3, characterized in that: A second connecting block (16) is fixedly connected to a side of the adjustment plate (11) away from the first mounting plate (3); a first rotating plate (17) is rotatably connected to the inside of the second connecting block (16); a second rotating plate (18) is rotatably connected to a side of the first rotating plate (17) away from the second connecting block (16); a first spring (19) is fixedly connected to a side of the second rotating plate (18) close to the first rotating plate (17); and the first spring (19) and the first rotating plate (17) are fixedly connected.

6. The anti-collision beam for the left front door of an automobile according to claim 3, characterized in that: The top end of the fixed plate (14) is fixedly connected to a cylinder body (20), the interior of the cylinder body (20) is slidably connected to a floating piston (21), the interior of the cylinder body (20) is slidably connected to a damping piston (22), the top end of the damping piston (22) is fixedly connected to a piston rod (23), and the surface of the piston rod (23) is movably sleeved with a second spring (24).

7. The anti-collision beam for the left front door of an automobile according to claim 6, characterized in that: The number of the cylinder bodies (20) is two, high-pressure nitrogen is provided between the bottom of the floating piston (21) and the cylinder body (20), damping oil is provided between the top of the floating piston (21) and the cylinder body (20), the damping piston (22) is located inside the damping oil, and the piston rod (23) is adapted to the guide groove.

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