A bumper with good protection performance

CN224781935UActive Publication Date: 2026-09-22SHANGHAI MINGCHEN MOLDING TECH
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Patent Information

Application Number
CN202522332988.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-09-22
Estimated Expiration
2035-11-04

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Abstract

The utility model provides a bumper with good protection performance relates to the bumper field, including installation support foot, the left side of installation support foot is provided with the crash buffer mechanism, is provided with the convenient replacement mechanism on the crash buffer mechanism, the side surface of installation support foot is provided with the mounting hole site, the crash buffer mechanism includes alloy beam and base plate, the base plate fixed mounting is in the end of installation support foot, the inner wall of base plate is connected with the slide rod that slides, the end fixed mounting of slide rod has the receiving frame. Through the overall design of crash buffer mechanism, when the collision occurs, the impact force will make the receiving frame as a whole slide to the base plate with the help of the slide rod, at this moment, the buffer spring will produce elastic deformation, realize the function of absorbing the impact force, reduce the harm of animals or other collided objects, improve the protection performance of the structure, and through the cooperation of the buffer beam and the rubber strip, the impact energy can also be absorbed and dispersed, further improving the protection performance.
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Description

Technical Field

[0001] This utility model belongs to the field of bumpers, and more specifically, it relates to a bumper with good protective performance. Background Technology

[0002] The bumper is a protective structure at the front and rear of a vehicle, typically consisting of a robust plastic shell, an energy-absorbing buffer layer, and internal steel beams. Its core function is to mitigate the impact of a collision, protecting the vehicle's frame and occupants, while also reducing pedestrian injuries. Furthermore, bumpers can optimize aerodynamics, improve fuel efficiency, and enhance the vehicle's aesthetics through design. Modern car bumpers often feature a removable design for easy maintenance or replacement.

[0003] Vehicles used in the wild have external bumpers added to the front to prevent collisions with animals. These bumpers are mostly made of welded alloy rods, which generate a large impact when they collide with animals. They are not very effective at absorbing the impact force and can cause significant harm to animals, resulting in poor protective performance.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a bumper with better protective performance, in order to achieve a more practical purpose. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a bumper with superior protective performance, thus solving the problem that current bumpers are mostly made of welded alloy rods, resulting in poor absorption of impact forces.

[0006] The purpose and effect of this utility model, which provides a bumper with good protective performance, are achieved by the following specific technical means:

[0007] A bumper with good protective performance includes a mounting leg, a collision buffer mechanism is provided on the left side of the mounting leg, a convenient replacement mechanism is provided on the collision buffer mechanism, and mounting holes are provided on the side of the mounting leg.

[0008] The collision buffer mechanism includes an alloy beam and a base plate. The base plate is fixedly installed at the end of the mounting leg. A sliding rod is slidably connected to the inner wall of the base plate. A receiving frame is fixedly installed at the end of the sliding rod. A buffer spring is fixedly installed on the inner wall of the receiving frame. The end of the buffer spring away from the inner wall of the receiving frame is fixedly installed on the outer wall of the base plate.

[0009] Furthermore, a rubber cylinder is fixedly installed on the side of the substrate, and the end of the rubber cylinder away from the substrate is fixedly installed on the inner wall of the supporting frame, with the buffer spring located in the inner cavity of the rubber cylinder.

[0010] Furthermore, a buffer beam is fixedly connected to the outer wall of the alloy beam, and a rubber strip is fixedly connected to the outer wall of the buffer beam.

[0011] Furthermore, the convenient replacement mechanism includes an assembly box and a connector. The assembly box is fixedly installed on the outer wall of the supporting frame, and the connector is fixedly installed on the inner side of the alloy beam. The connector is movably inserted into the inner cavity of the assembly box, and a rubber frame is fixedly connected to the side of the assembly box.

[0012] Furthermore, the top and bottom of the assembly box are fixedly connected with raised rings, and a cap is movably inserted into the inner cavity of the raised ring. A rubber ring is fixedly sleeved on the outer wall of the cap.

[0013] Furthermore, a track rod is fixedly installed on the inner wall of the connector, and a sliding block is slidably connected to the outer wall of the track rod. A connecting pin is fixedly connected to one side of the sliding block, and an elastic element is fixedly connected to the other side of the sliding block. The end of the elastic element away from the sliding block is fixedly installed on the inner wall of the connector.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the overall design of the collision buffer mechanism, when a collision occurs, the impact force will cause the entire supporting frame to slide towards the base plate via the sliding rod. At this time, the buffer spring will generate elastic deformation, realizing the function of absorbing the impact force, reducing the injury to animals or other objects that are collided, and improving the protective performance of this structure. Furthermore, through the cooperation of the buffer beam and rubber strip, the impact energy can also be absorbed and dispersed, further enhancing the protective performance. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of a bumper with good protective performance according to this utility model.

[0017] Figure 2 This is a schematic diagram of a bumper alloy beam with good protective performance according to this utility model.

[0018] Figure 3 This is a schematic diagram of a bumper support frame with good protective performance according to this utility model.

[0019] Figure 4 This is a schematic diagram of a convenient bumper replacement mechanism with good protective performance according to this utility model.

[0020] Figure 5 This is an exploded view of the overall design of a bumper connector with good protective performance according to this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Mounting feet; 2. Collision buffer mechanism; 21. Alloy beam; 22. Buffer beam; 23. Rubber strip; 24. Base plate; 25. Sliding rod; 26. Support frame; 27. Rubber cylinder; 28. Buffer spring; 3. Convenient replacement mechanism; 31. Assembly box; 32. Rubber frame; 33. Connector; 331. Track rod; 332. Sliding block; 333. Connecting pin; 334. Elastic element; 34. Protruding ring; 35. Cap; 36. Rubber ring. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 5 As shown:

[0028] This utility model provides a bumper with good protective performance, including a mounting leg 1, a collision buffer mechanism 2 is provided on the left side of the mounting leg 1, a convenient replacement mechanism 3 is provided on the collision buffer mechanism 2, and mounting holes are provided on the side of the mounting leg 1.

[0029] The collision buffer mechanism 2 includes an alloy beam 21 and a base plate 24. The base plate 24 is fixedly installed at the end of the mounting leg 1. A sliding rod 25 is slidably connected to the inner wall of the base plate 24. A support frame 26 is fixedly installed at the end of the sliding rod 25. A buffer spring 28 is fixedly installed on the inner wall of the support frame 26. The end of the buffer spring 28 away from the inner wall of the support frame 26 is fixedly installed on the outer wall of the base plate 24. During installation, the structure can be installed on the vehicle body through the mounting holes of the mounting leg 1 using bolts. When a collision occurs, the impact force will cause the support frame 26 to slide towards the base plate 24 via the sliding rod 25. At this time, the buffer spring 28 will undergo elastic deformation, realizing the function of absorbing the impact force, reducing the injury to animals or other objects that are collided, and improving the protective performance of the structure.

[0030] A rubber cylinder 27 is fixedly installed on the side of the substrate 24. The end of the rubber cylinder 27 away from the substrate 24 is fixedly installed on the inner wall of the receiving frame 26. The buffer spring 28 is located in the inner cavity of the rubber cylinder 27. The rubber cylinder 27 is used to wrap and protect the buffer spring 28, extend the service life of the buffer spring 28, and the rubber cylinder 27 can produce elastic deformation when the buffer spring 28 is compressed, which will not cause excessive interference to the operation of the buffer spring 28.

[0031] Among them, a buffer beam 22 is fixedly connected to the outer wall of the alloy beam 21, and a rubber strip 23 is fixedly connected to the outer wall of the buffer beam 22. The buffer beam 22 is made of polyethylene foam. Through the cooperation of the buffer beam 22 and the rubber strip 23, the impact energy can be absorbed and dispersed, further improving the protective performance.

[0032] The convenient replacement mechanism 3 includes an assembly box 31 and a connector 33. The assembly box 31 is fixedly installed on the outer wall of the supporting frame 26, and the connector 33 is fixedly installed on the inner side of the alloy beam 21. The connector 33 is movably inserted into the inner cavity of the assembly box 31. A rubber frame 32 is fixedly connected to the side of the assembly box 31. When the buffer beam 22 and rubber strip 23 are exposed to outdoor use for a long time, their service life is relatively short compared to metal materials, and they need to be replaced regularly. By inserting or removing the connector 33 in the inner cavity of the assembly box 31, the alloy beam 21 can be replaced. The entire assembly can be replaced, including the buffer beam 22 and the rubber strip 23. The buffer beam 22 and the rubber strip 23 are glued to the alloy beam 21. During the maintenance process of disassembling the alloy beam 21, the buffer beam 22 and the rubber strip 23 can be peeled off and replaced on the alloy beam 21, making the alloy beam 21 and the connector 33 reusable. When the connector 33 is inserted into the assembly box 31, the design of the rubber frame 32 can seal the connection between the assembly box 31 and the connector 33, extending the service life of the internal components of the connector 33.

[0033] The top and bottom of the assembly box 31 are fixedly connected with raised rings 34. A cap 35 is movably inserted into the inner cavity of the raised ring 34. A rubber ring 36 is fixedly sleeved on the outer wall of the cap 35. After the assembly box 31 and the connector 33 are assembled, the cap 35 is inserted into the inner cavity of the raised ring 34 to seal the gaps at the top and bottom of the assembly box 31, further extending the service life of the internal components of the connector 33. The design of the rubber ring 36 improves the tightness of the cap 35 inserted into the raised ring 34.

[0034] The connector 33 has a track rod 331 fixedly installed on its inner wall, and a sliding block 332 slidably connected to the outer wall of the track rod 331. A connecting pin 333 is fixedly connected to one side of the sliding block 332, and an elastic element 334 is fixedly connected to the other side of the sliding block 332. The end of the elastic element 334 away from the sliding block 332 is fixedly installed on the inner wall of the connector 33. When installing the connector 33 on the assembly box 31, the connecting pin 333 is first pushed into the inner cavity of the connector 33. During the process, the elastic element 334 is compressed, and then the connector 33 is inserted. After insertion, the elastic force of the elastic element 334 will drive the connecting pin 333 to be inserted into the corresponding holes at the top and bottom of the assembly box 31, thus completing the installation. When disassembling, the connecting pin 333 is pushed into the connector 33 from the top and bottom of the assembly box 31, and then the connector 33 can be pulled out from the inner cavity of the assembly box 31, thus completing the disassembly. This design eliminates the need to disassemble and reassemble the bolts, improving efficiency.

[0035] The specific usage and function of this embodiment are as follows:

[0036] During installation, the structure can be mounted on the vehicle body using bolts through the mounting holes of the mounting feet 1. In the event of a collision, the impact force will cause the entire supporting frame 26 to slide towards the base plate 24 via the sliding rod 25. At this time, the buffer spring 28 will undergo elastic deformation to absorb the impact force. The buffer beam 22 and rubber strip 23 will also undergo elastic deformation to absorb and disperse the impact energy. If it is necessary to quickly replace the buffer beam 22 and rubber strip 23, push the connecting pin 333 into the plug 33 from the top and bottom of the assembly box 31. Then, the plug 33 can be pulled out from the inner cavity of the assembly box 31 to complete the disassembly. Then, install the new alloy beam 21 as a whole.

[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A bumper with good protective performance, including mounting feet (1), characterized in that: A collision buffer mechanism (2) is provided on the left side of the mounting leg (1), and a convenient replacement mechanism (3) is provided on the collision buffer mechanism (2). Mounting holes are provided on the side of the mounting leg (1). The collision buffer mechanism (2) includes an alloy beam (21) and a base plate (24). The base plate (24) is fixedly installed at the end of the mounting leg (1). A sliding rod (25) is slidably connected to the inner wall of the base plate (24). A support frame (26) is fixedly installed at the end of the sliding rod (25). A buffer spring (28) is fixedly installed on the inner wall of the support frame (26). The end of the buffer spring (28) away from the inner wall of the support frame (26) is fixedly installed on the outer wall of the base plate (24).

2. The bumper with good protective performance as described in claim 1, characterized in that: A rubber cylinder (27) is fixedly installed on the side of the substrate (24). The end of the rubber cylinder (27) away from the substrate (24) is fixedly installed on the inner wall of the support frame (26). The buffer spring (28) is located in the inner cavity of the rubber cylinder (27).

3. A bumper with good protective performance as described in claim 1, characterized in that: A buffer beam (22) is fixedly connected to the outer wall of the alloy beam (21), and a rubber strip (23) is fixedly connected to the outer wall of the buffer beam (22).

4. A bumper with good protective performance as described in claim 1, characterized in that: The convenient replacement mechanism (3) includes an assembly box (31) and a connector (33). The assembly box (31) is fixedly installed on the outer wall of the support frame (26), and the connector (33) is fixedly installed on the inner side of the alloy beam (21). The connector (33) is movably inserted into the inner cavity of the assembly box (31), and a rubber frame (32) is fixedly connected to the side of the assembly box (31).

5. A bumper with good protective performance as described in claim 4, characterized in that: The top and bottom of the assembly box (31) are fixedly connected with protruding rings (34), and a cap (35) is movably inserted into the inner cavity of the protruding ring (34). A rubber ring (36) is fixedly sleeved on the outer wall of the cap (35).

6. A bumper with good protective performance as described in claim 5, characterized in that: A track rod (331) is fixedly installed on the inner wall of the connector (33), and a sliding block (332) is slidably connected to the outer wall of the track rod (331). A connecting pin (333) is fixedly connected to one side of the sliding block (332), and an elastic element (334) is fixedly connected to the other side of the sliding block (332). The end of the elastic element (334) away from the sliding block (332) is fixedly installed on the inner wall of the connector (33).