Rear buffer beam suitable for passenger car
By designing a rear buffer beam structure with detachable connecting round rods and rubber pads, the problem of high replacement costs caused by damage to the rear buffer beam of passenger vehicles during low-speed collisions has been solved, achieving a reduction in replacement costs and greater maintenance flexibility.
Patent Information
- Application Number
- CN202520046711.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-08
AI Technical Summary
The rear buffer beams of existing passenger vehicles are easily damaged in low-speed collisions, resulting in high replacement costs.
Design a rear buffer beam structure including opposing side plates and round rods. The two ends of the round rods are detachably connected and fixed by connecting shafts and fastening nuts. There is a gap between the round rods and it is filled with rubber pads. The round rods can be repaired and replaced individually.
The replacement cost is reduced by gradually increasing the number of deformable rods to absorb the impact force, thus reducing the number of rods that need to be repaired or replaced. Rubber pads also help absorb the impact force.
Smart Images
Figure CN223864819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts, specifically to a rear buffer beam suitable for passenger vehicles. Background Technology
[0002] The rear bumper beam, also known as a car crash beam, is a device used to absorb collision energy when a vehicle is involved in a collision. It consists of a main beam, an energy-absorbing box, and a mounting plate that connects to the car. Both the main beam and the energy-absorbing box can effectively absorb collision energy during low-speed collisions, minimizing the damage to the longitudinal beams of the vehicle body. This is how it protects the vehicle. However, even low-speed collisions can damage the main beam, requiring replacement, which is costly. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology.
[0004] A rear buffer beam suitable for passenger vehicles is provided to reduce replacement costs.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a rear buffer beam suitable for passenger vehicles, characterized in that: it includes side plates arranged opposite to each other, each side plate is provided with a connecting plate at one end on the same side, each connecting plate is provided with an energy-absorbing box, each energy-absorbing box is provided with an mounting plate for connecting to the vehicle body, and round rods are arranged in an orderly manner between the side plates, with both ends of each round rod being detachably connected to the side plate.
[0006] A further feature of this invention is that each round rod has a connecting shaft at both ends, the side plates are arranged in an orderly manner with connecting holes through which the connecting shafts can pass, each connecting shaft is threaded, each connecting shaft passes through the corresponding connecting hole, each connecting shaft is threadedly fitted with a fastening nut, and each fastening nut abuts against the end face of the side plate opposite to the round rod.
[0007] A further feature of this invention is that a gap is provided between the round rods.
[0008] A further feature of this invention is that the gap is filled with a rubber pad.
[0009] The present invention, which has the above-mentioned features, is characterized in that: when subjected to impact, the foremost round rod deforms first; as the impact force increases, the number of round rods involved in the deformation increases to absorb the impact force; the smaller the impact force, the fewer round rods deform, that is, the fewer round rods need to be repaired or replaced, thus reducing replacement costs; at the same time, each round rod can be repaired or replaced individually; gaps are provided between the round rods so that during slow impacts, slightly deformed round rods will not compress adjacent round rods, causing them to deform; in addition, the rubber pads provided can also absorb part of the impact force.
[0010] The beneficial effect of this utility model is that it reduces replacement costs.
[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0012] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Detailed Implementation
[0013] like Figure 1 A rear buffer beam suitable for passenger vehicles includes opposing side plates 1. Each side plate 1 has a connecting plate 2 at one end on the same side. Each connecting plate 2 has an energy-absorbing box 3. Each energy-absorbing box 3 has a mounting plate 4 for connection with the vehicle body. Round rods 5 are arranged in an orderly manner between the side plates 1. Both ends of each round rod 5 are detachably connected to the side plate 1. Each end of each round rod 5 has a connecting shaft 6. The side plates 1 have connecting holes 7 arranged in an orderly manner for the connecting shafts 6 to pass through. Each connecting shaft 6 is threaded and passes through the corresponding connecting hole 7. Each connecting shaft 6 is threaded and has a fastening nut 8. Each fastening nut 8 abuts against the end face of the side plate 1 opposite to the round rod 5. A gap 9 is provided between the round rods 5. The gap 9 is filled with a rubber pad 10.
[0014] When impacted, the foremost round rod 5 deforms first. As the impact force increases, the number of round rods 5 involved in the deformation increases to absorb the impact force. The smaller the impact force, the fewer round rods 5 deform, which means fewer round rods 5 need to be repaired or replaced, reducing replacement costs. At the same time, each round rod 5 can be repaired or replaced individually. There is a gap 9 between the round rods 5 so that during slow impacts, the slightly deformed round rod 5 will not squeeze the adjacent round rod 5 and cause it to deform. In addition, the rubber pads 10 that are filled in can also absorb part of the impact force.
Claims
1. A rear buffer beam suitable for passenger vehicles, characterized in that: The device includes side panels arranged opposite each other, each side panel having a connecting plate at one end on the same side, each connecting plate having an energy-absorbing box, each energy-absorbing box having a mounting plate for connecting to the vehicle body, and round rods arranged in an orderly manner between the side panels, with both ends of each round rod being detachably connected to the side panel.
2. A rear buffer beam suitable for passenger vehicles according to claim 1, characterized in that: Each round rod has a connecting shaft at both ends. The side plates are arranged in an orderly manner with connecting holes for the connecting shafts to pass through. Each connecting shaft is threaded and passes through the corresponding connecting hole. Each connecting shaft is threaded and fitted with a fastening nut. Each fastening nut abuts against the end face of the side plate opposite to the round rod.
3. A rear buffer beam suitable for passenger vehicles according to claim 2, characterized in that: There is a gap between the round rods.
4. A rear buffer beam suitable for passenger vehicles according to claim 3, characterized in that: The gap is filled with rubber pads.