Bumper structure with adjustable buffer block
By introducing an adjustable buffer block structure into the car bumper, and using rubber plates, buffer springs, and threaded rods to adjust the spacing of the clamping blocks, the problem of low buffer block replacement efficiency is solved, achieving efficient adaptation of the bumper structure and buffering effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG DELONG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-14
AI Technical Summary
The replacement efficiency of existing car bumper buffer blocks is low, and their size and thickness are not suitable for the installation gap, making them difficult to tighten, resulting in a large workload and low efficiency in replacement.
Design a bumper structure with adjustable buffer blocks. The adjustment component consists of a rubber plate, a buffer spring, a threaded rod, and clamping blocks. The thickness of the buffer block can be adjusted by adjusting the spacing of the clamping blocks through the threaded rod, so as to meet the clearance requirements between the bumper beam and the outer shell.
It improves the installation efficiency and adaptability of buffer blocks, simplifies the replacement process, enhances the buffering effect, and adapts to different thickness requirements.
Smart Images

Figure CN224117246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bumper structure with an adjustable buffer block, belonging to the field of bumper technology. Background Technology
[0002] A car bumper is a safety device used to protect the front and rear parts of a car body, absorbing and mitigating external impacts. Generally, the front and rear bumpers of a sedan consist of three parts: an outer panel, a buffer material, and a crossbeam. The outer panel is connected to the buffer material, which is then installed onto the surface of the crossbeam that connects to the vehicle. With the development of the automotive industry and road traffic, car speeds are increasing. As an important safety device, the car bumper has also undergone innovation.
[0003] Currently, the most commonly used buffer material in car bumpers is the buffer block, which is made of porous polyurethane and is hollow inside. The size and thickness of the buffer block are fixed. When replacing the bumper buffer block, it is usually necessary to disassemble the bumper beam and replace it step by step, which is inefficient and labor-intensive. In addition, it is difficult to tighten the buffer block if its size and thickness are not suitable for the installation gap. Therefore, there is an urgent need for a bumper structure with an adjustable buffer block to solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bumper structure with an adjustable buffer block to solve the problems mentioned in the background art. This utility model has a reasonable structure, is simple to operate, and can adjust the size and thickness of the buffer block, making it convenient to directly install and remove the buffer block between the bumper beam and the bumper shell, thereby improving the installation efficiency and adaptability of the buffer block.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bumper structure with an adjustable buffer block, comprising a bumper shell, a bumper beam, a buffer block component, positioning screw holes, a mounting plate, connecting cylinders, fastening bolts, and buckles. Positioning screw holes are provided on the side plates of the bumper shell, and these screw holes, along with the fastening bolts, mount the bumper beam onto the bumper shell. Connecting cylinders are also provided on both sides of the bumper beam, and a mounting plate is provided at the rear end of the bumper beam. The buffer block component is installed between the bumper shell and the bumper beam, and the buffer block component comprises rubber. The system comprises a plate, a buffer block, a buffer spring, and an adjusting component. The buffer block has two rubber plates on its periphery, and an adjusting component is located on the top of the two rubber plates. A buffer spring is installed on the rubber plate below the buffer block. The adjusting component includes a left clamping plate, a right clamping plate, a threaded rod, a first clamping block, a second clamping block, and a threaded through hole. The left clamping plate is connected to the left rubber plate, and the first clamping block is located on the top of the left clamping plate. The right clamping plate is connected to the right rubber plate, and the second clamping block is located on the top of the right clamping plate. Both the first and second clamping blocks have threaded through holes, and a threaded rod is inserted into the threaded through holes.
[0006] Furthermore, the threaded rod is adapted to the threaded through holes on the first and second clamping blocks.
[0007] Furthermore, the buffer spring is made of high-strength metal material, and its two ends are fixed to the bottom of the left and right rubber plates respectively.
[0008] Furthermore, the buffer block is positioned in the upper-middle area between two adjacent rubber plates.
[0009] Furthermore, the connecting cylinders on the left and right sides of the bumper crossbeam are connected to the longitudinal beams on both sides of the vehicle frame.
[0010] Furthermore, the mounting plate at the rear end of the bumper beam is provided with a buckle that is compatible with the buffer block component.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a bumper structure with an adjustable buffer block. Because this utility model adds a rubber plate, a buffer block, a buffer spring, a threaded rod, a first clamping block, a second clamping block, and a threaded through hole, the addition of a buffer spring helps to better adjust the size and thickness of the buffer block inside the rubber plate. The buffer spring itself also has a good effect of mitigating impact force. By using the threaded rod 3 to pull the distance between the first clamping block and the second clamping block, the buffer block is compressed, the size and thickness are adjusted, and the gap between the bumper beam and the bumper shell is satisfied. Attached Figure Description
[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the overall structure of a bumper structure with an adjustable buffer block according to the present invention.
[0014] Figure 2 This is a partial structural diagram of a bumper structure with an adjustable buffer block according to the present invention.
[0015] Figure 3 This is a schematic diagram of the buffer block component structure of a bumper structure with an adjustable buffer block according to the present invention;
[0016] Figure 4 This is a schematic diagram of the adjustment component structure of a bumper structure with an adjustable buffer block according to the present invention;
[0017] In the diagram: 1-Bumper shell, 2-Bumper crossbeam, 3-Buffer block component, 4-Positioning screw hole, 5-Mounting plate, 6-Connecting cylinder, 7-Fastening bolt, 8-Snap fastener, 31-Rubber plate, 32-Buffer block, 33-Buffer spring, 34-Adjusting component, 341-Left side clamping plate, 342-Right side clamping plate, 343-Threaded rod, 344-First clamping block, 345-Second clamping block, 346-Threaded through hole. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0019] Please see Figures 1-4This utility model provides a technical solution: a bumper structure with an adjustable buffer block, including a bumper shell 1, a bumper beam 2, a buffer block component 3, positioning screw holes 4, a mounting plate 5, a connecting cylinder 6, fastening bolts 7, and a buckle 8. Positioning screw holes 4 are provided on the side plate of the bumper shell 1, and the positioning screw holes 4, together with the fastening bolts 7, mount the bumper beam 2 onto the bumper shell 1. Connecting cylinders 6 are also provided on both sides of the bumper beam 2, and a mounting plate 5 is provided at the rear end of the bumper beam 2. The buffer block component 3 is installed between the bumper shell 1 and the bumper beam 2, wherein the buffer block component 3 includes a rubber plate 31, a buffer block 32, a buffer spring 33, and an adjusting component 34. The buffer block 32 is surrounded by... The device has two rubber plates 31 on the left and right, and an adjusting component 34 is provided on the top of the two rubber plates 31. A buffer spring 33 is installed on the rubber plate 31 below the buffer block 32. The adjusting component 34 includes a left clamping plate 341, a right clamping plate 342, a threaded rod 343, a first clamping block 344, a second clamping block 345, and a threaded through hole 346. The left clamping plate 341 is connected to the left rubber plate 31, and the first clamping block 344 is provided on the top of the left clamping plate 341. The right clamping plate 342 is connected to the right rubber plate 31, and the second clamping block 345 is provided on the top of the right clamping plate 342. Both the first clamping block 344 and the second clamping block 345 are provided with threaded through holes 346, and a threaded rod 343 is inserted into the threaded through hole 346.
[0020] As the first embodiment of this utility model: the buffer block 32 is arranged in the upper middle area of two adjacent rubber plates 31. The mounting plate 5 at the rear end of the bumper beam 2 is provided with a buckle 8 that matches the buffer block component 3. This design uses the buckle 8 to fix the rubber plate 31 in the buffer block component 3 to the rear end of the bumper beam 2, which helps to prevent the buffer block component 3 from loosening inside the car bumper. The connecting cylinders 6 on the left and right sides of the bumper beam 2 are connected to the longitudinal beams on both sides of the vehicle frame. The buffer spring 33 is made of high-strength metal material and its two ends are respectively fixed to the left and right rubber plates 3. Below 1, the design adds a buffer spring 33, which helps to better adjust the size and thickness of the buffer block 32 inside the rubber plate 31. The buffer spring 33 itself also has a good effect of damping the impact force. The threaded rod 343 is adapted to the threaded through hole 346 on the first clamping block 344 and the second clamping block 345. This design uses the threaded rod 343 to pull the distance between the first clamping block 344 and the second clamping block 345, thereby compressing the buffer block 32 inside the rubber plate 31 and adjusting its size and thickness to meet the gap between the bumper beam 2 and the bumper shell 1.
[0021] As a second embodiment of this utility model: the bumper housing 1 is assembled with the bumper beam 2 by fastening bolts 7 and positioning screw holes 4. Since the buffer block component 3 needs to be installed between the bumper housing 1 and the bumper beam 2, when the size and thickness of the buffer block component 3 do not match the gap between the bumper housing 1 and the bumper beam 2, it is necessary to adjust the size and thickness of the buffer block component 3. The rubber plate 31 is clamped by the clamping plates on both sides while the threaded rod 343 is tightened. Through the continuous pulling of the threaded rod 343 on the first clamping block 344 and the second clamping block 345, the buffer block 32 inside the rubber plate 31 will be compressed under the influence of the compressive force, and the thickness will gradually decrease until the requirement is met. The fastening bolt 7 can be tightly connected to the positioning screw hole 4. Since a buffer spring 33 is provided at the lower end of the rubber plate 31, the buffer spring 33 will extend outward during the process of loosening the threaded rod 343, which helps the buffer block 32 to return to its original position slightly. This allows the buffer block component 3 to fill the gap between the bumper shell 1 and the bumper beam 2 as much as possible. After a car collision, it is common for the buffer block 32 inside the bumper shell 1 to wear and break. When replacing the buffer block component 3, similarly, you only need to tighten the threaded rod 343 to reduce the thickness of the rubber plate 31 with the buffer block 32 to less than the gap between the bumper shell 1 and the bumper beam 2, and then you can directly remove the buffer block component 3 for replacement.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A bumper structure with an adjustable buffer block, comprising a bumper shell (1), a bumper crossbeam (2), a buffer block component (3), a positioning screw hole (4), a mounting plate (5), a connecting cylinder (6), fastening bolts (7), and a buckle (8), characterized in that, The bumper housing (1) has a positioning screw hole (4) on its side plate. The positioning screw hole (4) is used to install the bumper beam (2) on the bumper housing (1) by fastening bolts (7). The bumper beam (2) is also provided with connecting cylinders (6) on both sides. The bumper beam (2) is provided with a mounting plate (5) at the rear end. The buffer block component (3) is installed between the bumper housing (1) and the bumper beam (2). The buffer block component (3) includes a rubber plate (31), a buffer block (32), a buffer spring (33), and an adjustment component (34). The buffer block (32) is surrounded by two rubber plates (31) on the left and right sides. The two rubber plates (31) are provided with an adjustment component (34) on the top of the two rubber plates (31). The buffer spring (33) is installed at the position of the rubber plate (31) below the buffer block (32). The adjusting component (34) includes a left clamping plate (341), a right clamping plate (342), a threaded rod (343), a first clamping block (344), a second clamping block (345), and a threaded through hole (346). The left clamping plate (341) is connected to the left rubber plate (31), and the first clamping block (344) is provided on the top of the left clamping plate (341). The right clamping plate (342) is connected to the right rubber plate (31), and the second clamping block (345) is provided on the top of the right clamping plate (342). The first clamping block (344) and the second clamping block (345) are both provided with threaded through holes (346), and the threaded rod (343) is inserted into the threaded through hole (346).
2. The bumper structure with adjustable buffer block according to claim 1, characterized in that: The mounting plate (5) at the rear end of the bumper beam (2) is provided with a buckle (8) that is compatible with the buffer block component (3).
3. The bumper structure with adjustable buffer block according to claim 1, characterized in that: The connecting tubes (6) on the left and right sides of the bumper crossbeam (2) are connected to the longitudinal beams on both sides of the vehicle frame.
4. The bumper structure with adjustable buffer block according to claim 1, characterized in that: The buffer block (32) is located in the upper middle area of two adjacent rubber plates (31).
5. A bumper structure with an adjustable buffer block according to claim 1, characterized in that: The buffer spring (33) is made of high-strength metal material, and its two ends are fixed to the bottom of the left and right rubber plates (31) respectively.
6. A bumper structure with an adjustable buffer block according to claim 1, characterized in that: The threaded rod (343) is adapted to the threaded through hole (346) on the first clamping block (344) and the second clamping block (345).