Multi-stage damping automobile bumper structure

Abstract

The utility model discloses a multi-stage damping automobile bumper structure, which belongs to the technical field of automobile bumpers, and comprises reinforcing ribs, a buffer extension plate, a sliding rail and a force unloading component, and the force unloading component moves towards the sliding rail through a fixed plate arranged in the force unloading component. The linkage rods on the two sides at the same position rotate and push the sliding blocks on the two sides to slide towards the two sides on the outer walls of the sliding rods, so that the reset springs on the two sides can be compressed, and third-stage buffering is achieved; in the moving process of the sliding block, the connecting plate moves above the sliding rail, each extrusion plate extrudes each buffer extension plate, energy absorption is conducted through deformation of the buffer extension plates and the extrusion plates, and impact force directly facing the cab can be unloaded towards the two sides through movement of the extrusion plates; and the collision feeling of the cab is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile bumper, concretely relates to a multistage damping automobile bumper structure. BACKGROUND

[0002] The automobile bumper is a safety device for absorbing and reducing the impact force from the outside and protecting the front and rear parts of the vehicle body. The structure of the automobile bumper generally includes an outer plate, a buffer material, and a crossbeam. The outer plate and the buffer material are usually made of plastic, while the crossbeam is usually stamped into a U-shaped groove from a cold-rolled sheet. The thickness of the crossbeam is about 1.5 millimeters. These parts are connected by bolts and can be easily disassembled.

[0003] Chinese utility model patent CN220374454U discloses a damping automobile bumper structure, which comprises a bumper body, a damping assembly installed on the bumper body, the damping assembly comprising a crossbeam arranged on one side of the bumper body, two groups of symmetrical clamping seats fixed on the surface of the crossbeam near one side of the bumper body, and a plurality of groups of inclined blocks arranged at equal intervals on the side of the two groups of clamping seats close to each other, two groups of symmetrical spring dampers fixed between the inclined blocks and the clamping seats, an extrusion block arranged between the two groups of clamping seats, and a moving plate fixed between the extrusion block and the bumper body. By arranging the damping assembly, the automobile bumper can have a multistage damping function, good energy absorption performance, and can well protect the life safety of the passengers in the vehicle, meeting the actual use needs of people.

[0004] Although the above-mentioned prior art can realize the multistage damping function, when the bumper is impacted, the impact force is still directly faced with the cab. Although the impact force is absorbed by multistage damping, it cannot guide part of the impact force to the two sides, so that the effect of damping and energy absorption is limited. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] To solve the problem of the impact force being directly faced with the cab when the bumper is impacted, although the impact force is absorbed by multistage damping, it cannot guide part of the impact force to the two sides, so that the effect of damping and energy absorption is limited, the utility model adopts the following technical scheme.

[0007] The utility model provides a kind of multistage shock-absorbing automobile bumper structure, and the both sides of bumper body are provided with automobile headlamp installation slot, and installation support is fixedly connected on the bumper body, and installation support is connected with vehicle head, and the inner wall of bumper body is installed with reinforcing rib, and a plurality of buffering extension plates are fixedly connected on reinforcing rib, and sliding rail is arranged below reinforcing rib, and sliding rail is connected with vehicle head, and unloading assembly is installed on sliding rail, and unloading assembly is unloaded to the impact force of straight face cab to both sides.

[0008] Preferably, the inside of the sliding rail is installed with a three-stage buffer assembly, which can buffer the impact force in cooperation with the unloading assembly.

[0009] Preferably, the bumper body is installed with a side buffer assembly on the both-side automobile headlamp installation slot, which can transmit the side impact force to the buffering extension plate.

[0010] Preferably, the unloading assembly includes sliding blocks, linkage rods, fixed plates and connecting blocks, the inside of the sliding rail is fixedly connected with sliding rods, the both sides of the sliding rods are slidingly connected with the sliding blocks, the upper end of the sliding rail is provided with a through groove, the upper end of the sliding block is fixedly connected with a connecting plate above the sliding rail, the upper end of the connecting plate is fixedly connected with a plurality of extrusion plates, the both sides of the sliding blocks are rotatably connected with the linkage rods on the upper and lower sides of the outer wall, the ends of the two linkage rods at the same position are rotatably connected with the fixed plates, the outer wall of the fixed plate is fixedly connected with the connecting block, and the connecting block is connected with the inner wall of the bumper body.

[0011] Preferably, the buffer assembly includes a return spring, the outer wall of the sliding rod is provided with a return spring, and the two sliding blocks are compressed when moving in opposite directions at the same time.

[0012] Preferably, the side buffer assembly includes connecting cross plates and clamping buckles, the inside of the bumper body at the both-side automobile headlamp installation slot is fixedly connected with upper and lower opposing energy-absorbing plates, the both-side energy-absorbing plates are fixedly connected with connecting vertical plates therebetween, the outer part of the energy-absorbing plate is fixedly connected with the connecting cross plate, the connecting cross plate is fixedly connected with a plurality of clamping buckles, and the clamping buckles are clamped at the end of the buffering extension plate.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1, the fixed plate in the unloading assembly moves to the direction of sliding rail, and then the both-side linkage rods at the same position are rotated and push the both-side sliding blocks to slide on the outer wall of the sliding rod, and then the both-side return springs can be compressed, and the third-stage buffering is realized, and the connecting plate moves above the sliding rail in the process of the sliding block moving, and each extrusion plate extrudes each buffering extension plate, the energy is absorbed through the deformation of the buffering extension plate and the extrusion plate, and the impact force of straight face cab can be unloaded to both sides through the movement of the extrusion plate, so that the collision feeling of the cab is reduced.

[0015] 2、Through the energy-absorbing plate and the connecting vertical plate in the set side buffer assembly, the side strength of the bumper body is increased, and the clamping buckle is displaced to apply force on the buffer extension plate, so that the purpose of buffering the side impact force of the bumper body is achieved, and when the front of the bumper body is impacted, the connecting horizontal plate, the clamping buckle and the energy-absorbing plate can also participate in the buffering and damping work.

[0016] 3、Through the reinforcing rib, the strength of the bumper body is increased, and through the multiple buffer extension plates, the bumper body is deformed when impacted, and the multiple buffer extension plates are in contact with each other and deformed to absorb energy when the reinforcing rib is deformed, thereby achieving the effect of first-stage damping and buffering. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of a multi-stage damping automobile bumper structure in the utility model;

[0018] Figure 2 It is a schematic view of a buffer extension plate structure in the utility model;

[0019] Figure 3 It is a schematic view of a sliding rail structure in the utility model;

[0020] Figure 4 It is a schematic view of a clamping buckle structure in the utility model.

[0021] The correspondence between the annotations of the drawings and the component names in the drawings is as follows:

[0022] 100, bumper body; 101, mounting bracket; 102, automobile headlight mounting groove;

[0023] 200, reinforcing rib; 201, buffer extension plate;

[0024] 300, sliding rail; 301, extrusion plate; 302, connecting plate; 303, sliding block; 304, linkage rod; 305, fixed plate; 306, connecting block; 307, sliding rod; 308, return spring; 309, through groove;

[0025] 400, energy-absorbing plate; 401, connecting vertical plate; 402, connecting horizontal plate; 403, clamping buckle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings of the specification.

[0027] Many specific details are set forth in the following description in order to provide a thorough understanding of the present application. However, the present application can be practiced according to other embodiments that can not be described in detail herein, and the skilled person can make similar extensions without departing from the scope of the present application, and the present application is not limited to the specific embodiments disclosed below.

[0028] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments. The present application provides the following embodiments.

[0029] As shown in Figure 1 , it is a schematic diagram of a multi-stage shock-absorbing bumper structure of a preferred embodiment of the present application. The multi-stage shock-absorbing bumper structure of the present embodiment comprises a reinforcing rib 200 mounted on the inner side of the bumper body 100, and a plurality of buffer extension plates 201 are fixedly connected to the reinforcing rib 200. The bumper body 100 is provided with automobile headlamp mounting grooves 102 on both sides, and the bumper body 100 is fixedly connected with mounting brackets 101, and the mounting brackets 101 are connected with the vehicle head. In the present embodiment, the reinforcing rib 200 can increase the strength of the bumper body 100, and the plurality of buffer extension plates 201 can deform the reinforcing rib 200 when the bumper body 100 is impacted, and the plurality of buffer extension plates 201 can contact and deform each other to absorb energy when the reinforcing rib 200 deforms, thereby achieving the effect of first-stage shock-absorbing buffer.

[0030] As shown in Figure 2 , it is a schematic diagram of a buffer extension plate structure in the present embodiment. The reinforcing rib 200 is provided with a sliding rail 300 below, and the sliding rail 300 is connected with the vehicle head. The upper end of the sliding rail 300 is provided with a plurality of extrusion plates 301 on both sides, which contact the buffer extension plates 201. In the present embodiment, the plurality of extrusion plates 301 on both sides will move to both sides when impacted, and the deformation of the buffer extension plates 201 when impacted can further buffer the impact force generated by the impact, so that the shock-absorbing effect is better, thereby achieving the second-stage buffer.

[0031] As shown in Figure 3As shown, it is a schematic diagram of the sliding rail structure in the embodiment, the inside of the sliding rail 300 is fixedly connected with a sliding rod 307, both sides of the sliding rod 307 are slidably connected with a sliding block 303, the upper end of the sliding rail 300 is provided with a through groove 309, the upper end of the sliding block 303 is fixedly connected with a connecting plate 302 located above the sliding rail 300, each extrusion plate 301 is connected with the upper end of the connecting plate 302, the outer wall of both sides of the sliding rod 307 is provided with a reset spring 308, both sides of the sliding block 303 are rotatably connected with a linkage rod 304 on the upper and lower sides of the outer wall, the distal end of the two linkage rods 304 at the same position is rotatably connected with a fixed plate 305, the outer wall of the fixed plate 305 is fixedly connected with a connecting block 306, the connecting block 306 is connected with the inner wall of the bumper body 100, in the embodiment, when the bumper body 100 is impacted, the fixed plate 305 is pushed to move in the direction of the sliding rail 300, thereby making both sides of the linkage rod 304 at the same position rotate and pushing both sides of the sliding block 303 to slide on the outer wall of the sliding rod 307, thereby being able to compress both sides of the reset spring 308, thereby realizing the third-stage buffering, and the connecting plate 302 moves above the sliding rail 300 and makes each extrusion plate 301 extrude each buffer extension plate 201 in the process of movement of the sliding block 303, the energy is absorbed through the deformation of the buffer extension plate 201 and the extrusion plate 301, and the impact force of the straight-faced cab can be unloaded to both sides through the movement of the extrusion plate 301, so that the impact feeling of the cab is reduced.

[0032] It is worth noting that the sliding block 303, the linkage rod 304, the fixed plate 305 and the connecting block 306 are the force unloading assembly in the embodiment, the force unloading assembly includes but is not limited to the sliding block 303, the linkage rod 304, the fixed plate 305 and the connecting block 306, as long as the assembly which can make the multiple extrusion plates 301 on both sides of the bumper body 100 move to both sides respectively when the bumper body 100 is impacted can be applied in the embodiment, such as a cross scissors structure.

[0033] It is worth noting again that the reset spring 308 is a three-stage buffering assembly in the embodiment, the buffering assembly includes but is not limited to the reset spring 308, as long as the assembly which can buffer the movement of the sliding block 303 can be applied in the embodiment, such as a damper.

[0034] As Figure 4As shown, it is the schematic view of the clamping buckle structure in the embodiment, the bumper body 100 is fixedly connected with the upper and lower energy absorption plates 400 inside the two automobile headlamp installation grooves 102, the two energy absorption plates 400 are fixedly connected with the connecting vertical plate 401, the outer part of the energy absorption plate 400 is fixedly connected with the connecting horizontal plate 402, the connecting horizontal plate 402 is fixedly connected with a plurality of clamping buckles 403, the clamping buckles 403 are clamped at the end of the buffer extension plate 201, in the embodiment, when the side of the bumper body 100 is impacted, the side strength of the bumper body 100 is increased through the energy absorption plate 400 and the connecting vertical plate 401, and the clamping buckles 403 are displaced to exert force on the buffer extension plate 201, so that the side impact force buffering of the bumper body 100 is achieved, and when the front of the bumper body 100 is impacted, the connecting horizontal plate 402, the clamping buckles 403 and the energy absorption plate 400 can also participate in the buffering and damping work.

[0035] It is worth noting that the connecting horizontal plate 402 and the clamping buckle 403 are the side buffering components in the embodiment, the side buffering components include but are not limited to the connecting horizontal plate 402 and the clamping buckle 403, as long as the components that can transmit the side impact force to the buffer extension plate 201 can be applied in the embodiment, for example, the connecting horizontal plate 402 is fixedly connected with each buffer extension plate 201.

[0036] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions, for ordinary skilled persons in the technical field to which the utility model belongs, on the premise of not departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as belonging to the protection range determined by the claims of the utility model submitted.

Claims

1. A multi-stage shock-absorbing car bumper structure, wherein car headlight mounting slots (102) are provided on both sides of the bumper body (100), and a mounting bracket (101) is fixedly connected to the bumper body (100), the mounting bracket (101) being connected to the front of the vehicle, characterized in that, The inner wall of the bumper body (100) is equipped with reinforcing ribs (200), and multiple buffer plates (201) are fixedly connected to the reinforcing ribs (200). A sliding rail (300) is provided below the reinforcing ribs (200). The sliding rail (300) is connected to the front of the vehicle. A force-dissipating component is installed on the sliding rail (300). The force-dissipating component dissipates the impact force directly facing the cab to both sides.

2. The multi-stage shock absorption automobile bumper structure according to claim 1, characterized in that, The sliding track (300) is equipped with a three-stage buffer assembly, which can work with the force relief assembly to buffer the impact force.

3. The multi-stage shock absorption automobile bumper structure according to claim 2, characterized in that, The bumper body (100) is equipped with side buffer components on the headlight mounting slots (102) on both sides. The side buffer components can transfer the side impact force to the buffer extension plate (201).

4. The multi-stage shock absorption automobile bumper structure according to claim 3, characterized in that, The force-relieving assembly includes a sliding block (303), a linkage rod (304), a fixing plate (305), and a connecting block (306). A sliding rod (307) is fixedly connected inside the sliding track (300). Sliding blocks (303) are slidably connected to both sides of the sliding rod (307). A through groove (309) is provided at the upper end of the sliding track (300). A connecting plate (302) located above the sliding track (300) is fixedly connected to the upper end of the sliding block (303). Multiple extrusion plates (301) are fixedly connected to the upper end of the connecting plate (302). Linkage rods (304) are rotatably connected to the upper and lower sides of the outer wall of the two sliding blocks (303). The ends of the two linkage rods (304) at the same position are rotatably connected to the fixing plate (305). A connecting block (306) is fixedly connected to the outer wall of the fixing plate (305). The connecting block (306) is connected to the inner wall of the bumper body (100).

5. The multi-stage shock absorption automobile bumper structure according to claim 4, characterized in that, The buffer assembly includes a return spring (308). The outer walls of both sides of the sliding rod (307) are provided with return springs (308). When the two sliding blocks (303) move in opposite directions at the same time, the return springs (308) are compressed.

6. The multi-stage shock absorption automobile bumper structure according to claim 5, characterized in that, The side buffer assembly includes a connecting horizontal plate (402) and a snap fastener (403). The bumper body (100) is fixedly connected to the upper and lower opposing energy-absorbing plates (400) inside the headlight mounting slots (102) on both sides. A connecting vertical plate (401) is fixedly connected between the two energy-absorbing plates (400). A connecting horizontal plate (402) is fixedly connected to the outside of the energy-absorbing plate (400). Multiple snap fasteners (403) are fixedly connected on the connecting horizontal plate (402). The snap fasteners (403) are snapped at the ends of the buffer extension plate (201).

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