Bumper convenient to maintain
By connecting the anti-collision beam and the bumper with detachable mounting rods and limiting components, the problem of needing to replace the entire front bumper of traditional off-road vehicles is solved. This allows for the individual removal and replacement of the anti-collision beam, reducing maintenance costs and improving collision energy absorption efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU MINGCHEN AUTOMOBILE CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional off-road vehicles use welding or riveting to fix the front bumper's anti-collision beam to the vehicle's longitudinal beams, which means that the entire anti-collision beam needs to be replaced when it is damaged, resulting in high maintenance costs.
A detachable mounting bracket connects the anti-collision beam to the bumper body, and the anti-collision beam can be disassembled and installed separately through a limiting component and a magnetic plug. The crushing ribs in the energy-absorbing box work together with the V-shaped guide groove to absorb impact energy.
It enables the individual disassembly and replacement of the anti-collision beam, reducing maintenance costs and time, while the energy-absorbing box effectively absorbs energy during a collision.
Smart Images

Figure CN224240967U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bumper technology, and in particular to a bumper that is easy to maintain. Background Technology
[0002] Bumpers are important passive safety devices at the front and rear of a car body. Among them, the front bumper of an off-road vehicle is a very important protective and functional extension component at the front of the vehicle. The core structural components of the front bumper of an off-road vehicle include the main body, anti-collision beam, fixed bracket, and extended side wings.
[0003] Traditional off-road vehicles typically use welding or riveting to fix the front bumper's anti-collision beam to the vehicle's longitudinal beams, making it impossible to disassemble them individually. When a single anti-collision beam is damaged, the entire vehicle must be replaced, resulting in high maintenance costs. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bumper that is easy to maintain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A bumper that is easy to maintain includes a bumper body, on which a crash beam assembly is provided. The crash beam assembly includes a crash beam body, and detachable mounting rods are connected to both sides of the crash beam body by fastening components. The mounting rods are connected to the bumper body.
[0007] Support plates are symmetrically installed on both sides of the front end of the bumper body, and two sets of energy-absorbing box bodies are symmetrically installed on the back side of the anti-collision beam body. Mounting seats are installed on the support plates at the corresponding energy-absorbing box bodies, and the mounting seats and energy-absorbing box bodies are limited by limiting components.
[0008] In addition, a preferred structure is that the limiting component includes a handle plate, a plurality of magnetic plugs are installed at equal intervals on one end of the handle plate, and an extension rod is installed on the other end of the magnetic plugs, with a nut screwed to the other end of the extension rod.
[0009] Furthermore, in a preferred configuration, an energy-absorbing cavity is provided within the energy-absorbing box body, and multiple crushing ribs are installed at equal intervals within the energy-absorbing cavity. Additionally, a V-shaped induction groove is provided between each two adjacent crushing ribs on the energy-absorbing box body.
[0010] In addition, the preferred structure is that the mounting base is T-shaped, and one side of the energy-absorbing box body is connected to the anti-collision beam body by multiple bolts, while the other side of the energy-absorbing box body is provided with a mounting groove at the mounting base.
[0011] In addition, a preferred structure is that a magnetic groove is provided on one side of the mounting base for the magnetic plug to be inserted, and an insertion hole is provided on the other side of the magnetic groove in the mounting base for the extension rod to pass through.
[0012] In addition, a preferred structure is that the energy-absorbing box body has an auxiliary insertion hole one for the magnetic insertion block to pass through on one side of the mounting groove, and an auxiliary insertion hole two for the extension rod to pass through on one side of the mounting groove.
[0013] The beneficial effects of this utility model are as follows:
[0014] In this invention, the anti-collision beam body and the bumper body are detachable. When the anti-collision beam is damaged, it can be disassembled for maintenance or replacement without disassembling the bumper body. At the same time, the crushing ribs in the energy-absorbing box body are set in conjunction with the V-shaped guide groove, which gradually crush and absorb impact energy along a preset path during a collision. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a bumper that is easy to maintain, as proposed in this utility model.
[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0017] Figure 3 This is a schematic diagram of a partially disassembled bumper according to the present invention, which is easy to maintain.
[0018] Figure 4 for Figure 3 Enlarged structural diagram at point B;
[0019] Figure 5 for Figure 3 Enlarged structural diagram at point C;
[0020] Figure 6 This is a cross-sectional structural diagram of the energy-absorbing box body.
[0021] In the diagram: 1. Bumper body; 11. Mounting support rod; 2. Anti-collision beam body; 3. Support plate; 31. Mounting seat; 4. Energy absorption box body; 41. V-shaped guide groove; 42. Crushing rib; 5. Limiting component; 51. Handle plate; 52. Magnetic insert; 53. Extension rod; 54. Nut. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-6 A bumper that is easy to maintain includes a bumper body 1, a bumper body 1 is provided with a crash beam assembly, the crash beam assembly includes a crash beam body 2, and the two sides of the crash beam body 2 are connected to detachable mounting rods 11 by fastening components, and the mounting rods 11 are connected to the bumper body 1.
[0024] It is worth noting that the specific structure and installation method of the anti-collision beam assembly and the bumper body 1 are existing technologies that are currently publicly available on the market, so they will not be elaborated further.
[0025] Support plates 3 are symmetrically installed on both sides of the front end of the bumper body 1, and two sets of energy-absorbing box bodies 4 are symmetrically installed on the back side of the anti-collision beam body 2. Mounting seats 31 are installed on the support plates 3 at the corresponding energy-absorbing box bodies 4. The mounting seats 31 and the energy-absorbing box bodies 4 are limited by limiting components 5.
[0026] Furthermore, the limiting component 5 includes a handle plate 51, with multiple magnetic plugs 52 evenly installed at one end of the handle plate 51, and an extension rod 53 installed at the other end of the magnetic plugs 52, with a nut 54 screwed to the other end of the extension rod 53.
[0027] Meanwhile, an energy-absorbing cavity is provided inside the energy-absorbing box body 4, and multiple crushing ribs 42 are installed at equal intervals inside the energy-absorbing cavity. V-shaped induction grooves 41 are provided between adjacent crushing ribs 42 in the energy-absorbing box body 4. It is worth noting that the groove depths of adjacent V-shaped induction grooves 41 are different.
[0028] Furthermore, the mounting base 31 is T-shaped, and one side of the energy-absorbing box body 4 is connected to the anti-collision beam body 2 by multiple bolts (not shown in the figure), while the other side of the energy-absorbing box body 4 is provided with a mounting groove at the mounting base 31.
[0029] Meanwhile, a magnetic groove is provided on one side of the mounting base 31 for the magnetic plug 52 to be inserted, and an insertion hole is provided on the other side of the magnetic groove inside the mounting base 31 for the extension rod 53 to pass through. The inner wall of the magnetic groove is provided with a magnetic layer with the opposite polarity to that of the magnetic plug 52.
[0030] Furthermore, an auxiliary insertion hole 1 for the magnetic insertion block 52 to pass through is provided on one side of the mounting groove inside the energy-absorbing box body 4, and an auxiliary insertion hole 2 for the extension rod 53 to pass through is provided on one side of the mounting groove inside the energy-absorbing box body 4.
[0031] The fastening components can be bolts and matching nuts. The anti-collision beam body 2 and the mounting support rod 11 are connected by the fastening components. When the anti-collision beam body 2 is damaged, it can be disassembled, maintained or replaced individually.
[0032] In this embodiment, the anti-collision beam body 2 and the bumper body 1 are detachable. When the anti-collision beam is damaged, it can be disassembled, maintained, or replaced individually.
[0033] When the anti-collision beam body 2 and the energy-absorbing box body 4 are damaged, the limit component can be removed by loosening the thread of the nut 54, holding the handle plate 51, and then the bolts and nuts in the fastening component can be separated. Then the anti-collision beam body 2 can be disassembled and removed for maintenance or replacement.
[0034] When it is necessary to install the bumper body 2 and the energy-absorbing box body 4 after maintenance or replacement with the bumper body 1, connect the two sides of the bumper body 2 with the corresponding mounting rods 11 through the fastening components. At the same time, before connecting, align the mounting groove of the energy-absorbing box body 4 with the mounting seat 31 and insert it. Then, hold the handle plate 51 and align the extension rod 53 with its auxiliary insertion hole 1 and insert it until it is fully inserted. One end of the extension rod 53 is located outside the energy-absorbing box body 4 and is screwed tightly with the nut 54, thereby completing the installation of the energy-absorbing box body 4 and the mounting seat 31. After the limiting component 5 is fully inserted, its magnetic plug 52 is magnetically connected to the magnetic groove of the mounting seat 31, further ensuring the stability of the limiting component 5.
[0035] Furthermore, when a single energy-absorbing box body 4 is damaged, the energy-absorbing box body 4 can be disassembled and replaced individually, reducing maintenance costs and maintenance time.
[0036] In this utility model, the anti-collision beam body 2 and the bumper body 1 are detachable. When the anti-collision beam is damaged, it can be disassembled for maintenance or replacement without disassembling the bumper body 1. At the same time, the crushing rib 42 in the energy-absorbing box body 4 is set in conjunction with the V-shaped guide groove 41 to gradually crush and absorb impact energy in a preset path during a collision.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A bumper that is easy to maintain, comprising a bumper body (1), characterized in that, The bumper body (1) is provided with a crash beam assembly, which includes a crash beam body (2). Both sides of the crash beam body (2) are connected to detachable mounting rods (11) through fastening components, and the mounting rods (11) are connected to the bumper body (1). The front sides of the bumper body (1) are symmetrically equipped with support plates (3), and the back side of the anti-collision beam body (2) is symmetrically equipped with two sets of energy-absorbing box bodies (4). The support plate (3) is equipped with a mounting seat (31) at the corresponding energy-absorbing box body (4). The mounting seat (31) and the energy-absorbing box body (4) are limited by a limiting component (5).
2. The bumper for easy maintenance according to claim 1, characterized in that, The limiting component (5) includes a handle plate (51), with multiple magnetic plugs (52) installed at equal intervals on one end of the handle plate (51), and an extension rod (53) installed on the other end of the magnetic plugs (52), with a nut (54) screwed onto the other end of the extension rod (53).
3. A bumper that is easy to maintain according to claim 1, characterized in that, The energy-absorbing box body (4) has an energy-absorbing cavity, and multiple crushing ribs (42) are installed at equal intervals in the energy-absorbing cavity. V-shaped induction grooves (41) are provided between two adjacent crushing ribs (42) in the energy-absorbing box body (4).
4. A bumper that is easy to maintain according to claim 1, characterized in that, The mounting base (31) is T-shaped, and one side of the energy-absorbing box body (4) is connected to the anti-collision beam body (2) by multiple bolts. The other side of the energy-absorbing box body (4) is provided with a mounting groove at the mounting base (31).
5. A bumper that is easy to maintain according to claim 4, characterized in that, The mounting base (31) has a magnetic groove on one side for the magnetic plug (52) to be inserted, and an insertion hole for the extension rod (53) to be inserted on the other side of the magnetic groove inside the mounting base (31).
6. A bumper that is easy to maintain according to claim 3, characterized in that, The energy-absorbing box body (4) has an auxiliary insertion hole 1 on one side of the mounting groove for the magnetic insertion block (52) to pass through, and an auxiliary insertion hole 2 on one side of the mounting groove for the extension rod (53) to pass through.