A leaf plate retrofit scratch protection device

Abstract

This utility model discloses a fender modification anti-scratch protection device, belonging to the field of automotive parts technology. It includes a fixed bracket and a protective shell, as well as a reinforcement mechanism, a positioning post, a plate, a damper, a spring seat, a buffer spring, a magnetic block, a silicone buffer layer, and a positioning sleeve. The positioning sleeve is slidably fitted onto the positioning post. The silicone buffer layer is disposed between the protective shell and the plate. The protective shell compresses the buffer spring. The damper connects the plate and the protective shell. The reinforcement mechanism securely connects the protective shell and the fixed bracket. Magnetic blocks are provided on both the inner wall of the protective shell and the outer wall of the plate, and they are magnetically attracted to each other. This utility model, through the multi-stage synergistic cooperation of the silicone buffer layer, the buffer spring, and the damper, supplemented by the guidance of the positioning post and the positioning sleeve, solves the problem that existing protection devices cannot effectively absorb strong impact forces.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a fender modification anti-scratch protection device. Background Technology

[0002] The car fender is located on the outside of the wheel and is an important part of the car body. During daily driving and parking, the fender is easily scratched or collided with obstacles due to its protruding position, which can lead to paint scratches or even sheet metal deformation.

[0003] To protect the fenders, existing technologies provide adhesive bumper strips or protective devices. These devices are directly fixed to the fender surface with an adhesive layer. They are simple in structure and easy to install, and can resist minor scratches. However, due to their limited thickness and rigid fit to the fender, when subjected to a collision with a certain impact force, the collision energy will penetrate the protective device and act directly on the fender. They cannot play an effective role in buffering and absorbing energy, and will still cause dent damage to the fender.

[0004] Some protective devices use thicker materials and are fixed with clips or screws. Although this improves their sturdiness, the connection between these protective devices and the fenders is still a rigid connection. In the event of a collision, the impact force will be transmitted to the vehicle body along the rigid connection path. There is no effective energy dissipation mechanism, and the fenders cannot be fundamentally prevented from being deformed by the force.

[0005] Therefore, this utility model proposes a fender modification anti-scratch protection device to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of existing fender retrofit anti-scratch protection devices, such as simple structure, rigid connection with the fender, inability to effectively absorb and buffer strong scratch impact force, and direct transmission of impact force to the vehicle body fender causing damage, this utility model aims to provide a fender retrofit anti-scratch protection device with improved structure that can effectively solve the above problems.

[0007] This utility model provides a modified anti-scratch protection device for fenders, including a fixed bracket and a protective shell; it also includes a reinforcement mechanism, a positioning column set on the fixed bracket, a plate fixedly connected to the fixed bracket, a damper installed on the outer wall of the plate, a spring seat, a buffer spring, a magnetic block set on the outer wall of the plate, a silicone buffer layer, and a positioning sleeve set on the inner wall of the protective shell.

[0008] Furthermore, the positioning sleeve is slidably fitted onto the positioning post, the silicone buffer layer is disposed between the protective shell and the plate, the inner side of the protective shell compresses the buffer spring, the buffer spring is housed in the spring seat, the telescopic end of the damper is connected to the inner wall of the protective shell, the protective shell and the fixed bracket are securely connected by the reinforcement mechanism, and the inner wall of the protective shell is also provided with a magnetic block, the magnetic block on the inner wall of the protective shell and the magnetic block on the outer wall of the plate are magnetically attracted.

[0009] Preferably, the reinforcement mechanism includes a fixing groove, a pin hole, a fixing column, a stabilizing pin, a locking pin, and a limiting plate.

[0010] Preferably, the fixing groove is disposed on the fixing bracket, and the fixing post is disposed on the protective shell.

[0011] Preferably, the fixing post is inserted into the fixing groove, and the pin hole passes through the fixing groove and the fixing post.

[0012] Preferably, the stabilizing pin passes through the pin hole.

[0013] Preferably, the locking pin is inserted into the internal through hole of the stabilizing pin.

[0014] Preferably, the locking pin is provided with the limiting plate.

[0015] Preferably, the spring seat is fixed to the plate, one end of the buffer spring abuts against the bottom of the spring seat, and the other end of the buffer spring abuts against the protective shell.

[0016] Preferably, one end of the damper is fixed to the plate, and the other retractable end of the damper is connected to the protective shell.

[0017] Preferably, the silicone buffer layer is used to provide initial cushioning when the protective housing is impacted.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem that existing fender protection devices are simple in structure and cannot effectively absorb strong impact forces, which can easily damage the vehicle body. It achieves the ability to unload impact forces in stages when subjected to scratches and impacts, suppress spring rebound oscillations using dampers, and ensure smooth and controllable movement trajectory through the guide mechanism, thus significantly improving the protection capability of the fender.

[0020] 2. This utility model, through a multi-locking and reinforcing mechanism consisting of a fixing groove, a fixing column, a stabilizing pin, and a locking pin with a limit plate, supplemented by magnetic adsorption fixation of magnetic blocks, solves the problem that existing protective devices are prone to loosening, displacement, or even falling off when vehicles are subjected to vibration or impact during long-term driving. It achieves a rigid and stable connection between the protective shell and the fixed bracket, effectively preventing accidental loosening, and uses magnetic adsorption to eliminate abnormal noises caused by minor vibrations, ensuring the structural stability of the device during long-term use. Attached Figure Description

[0021] Figure 1 This is a front perspective view of a fender modification anti-scratch protection device proposed in this utility model;

[0022] Figure 2 This is a partial structural exploded view of the protective shell of a fender modification anti-scratch protection device proposed in this utility model;

[0023] Figure 3 This is a partial structural breakdown diagram of the locking pin of a fender modification anti-scratch protection device proposed in this utility model;

[0024] Figure 4 This is a partial structural diagram of the positioning sleeve for a fender modification anti-scratch protection device proposed in this utility model.

[0025] Legend:

[0026] 1. Plate body; 2. Reinforcing mechanism; 201. Fixing groove; 202. Pin hole; 203. Fixing post; 204. Stabilizing pin; 205. Locking pin; 206. Limiting plate; 3. Fixing bracket; 4. Positioning post; 5. Damper; 6. Spring seat; 7. Buffer spring; 8. Magnetic block; 9. Silicone buffer layer; 10. Positioning sleeve; 11. Protective shell. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 4This utility model provides a fender modification anti-scratch protection device, including a fixed bracket 3 and a protective shell 11. The fender modification anti-scratch protection device also includes a reinforcing mechanism 2, a positioning post 4, a plate 1, a damper 5, a spring seat 6, a buffer spring 7, a magnetic block 8, a silicone buffer layer 9, and a positioning sleeve 10. The plate 1 is fixedly connected to the fixed bracket 3, the positioning post 4 is set on the fixed bracket 3, and the protective shell 11 is stably connected to the fixed bracket 3 through the reinforcing mechanism 2. The protective shell 11 covers the outside of the plate 1, and the positioning sleeve 10 is set on the inner wall of the protective shell 11. The positioning sleeve 10 is slidably fitted on the positioning post 4. The cooperation between the positioning post 4 and the positioning sleeve 10 is used to guide the protective shell 11 to slide along the axial direction of the positioning post 4 when subjected to force.

[0030] A silicone buffer layer 9 is disposed between the protective shell 11 and the plate 1. The silicone buffer layer 9 is used to provide initial cushioning when the protective shell 11 is impacted. The spring seat 6 is fixed on the plate 1. The buffer spring 7 is housed in the spring seat 6. One end of the buffer spring 7 abuts against the bottom of the spring seat 6, and the other end of the buffer spring 7 abuts against the protective shell 11. The buffer spring 7 is used to be compressed to absorb energy when the protective shell 11 is subjected to force and slides. The damper 5 is installed on the outer wall of the plate 1. One end of the damper 5 is fixed to the plate 1, and the other retractable end of the damper 5 is connected to the protective shell 11. The damper 5 is used to absorb impact energy and suppress rebound when the buffer spring 7 is compressed and rebounds.

[0031] Magnetic blocks 8 are installed on the outer wall of the plate 1, and magnetic blocks 8 are also installed on the inner wall of the protective shell 11. The magnetic blocks 8 on the inner wall of the protective shell 11 and the magnetic blocks 8 on the outer wall of the plate 1 are magnetically attracted to each other. The magnetic attraction of the magnetic blocks 8 is used to help fix the protective shell 11. The reinforcement mechanism 2, positioning column 4, plate 1, damper 5, spring seat 6, buffer spring 7, magnetic blocks 8, silicone buffer layer 9 and positioning sleeve 10 work together to achieve multi-level buffering and guiding limit on the basis of stable installation of the protective shell 11, thereby protecting the fender from scratch and impact damage.

[0032] Please refer to Figure 1 and Figure 4The positioning post 4 is mounted on the fixed bracket 3. The positioning post 4 is a sturdy cylindrical structure. The function of the positioning post 4 is to provide a rigid guiding reference and stroke limit for the movement of the protective shell 11. The positioning sleeve 10 is correspondingly provided on the inner wall of the protective shell 11. The positioning sleeve 10 is located on the inner wall of the protective shell 11 and has a hollow inner hole. The shape and size of the hollow inner hole of the positioning sleeve 10 are adapted to the shape of the positioning post 4. In the assembled state, the positioning sleeve 10 on the protective shell 11 slides onto the positioning post 4 of the fixed bracket 3. The inner wall of the positioning sleeve 10 and the outer wall of the positioning post 4 form a sliding fit, which ensures that when the protective shell 11 is subjected to scratch and impact force, it can only slide straight inward along the axial direction of the positioning post 4. This effectively avoids the protective shell 11 from lateral displacement or twisting, and ensures that the subsequent buffer spring 7 and damper 5 can be evenly stressed, thus realizing the precise guiding and limiting function.

[0033] Please refer to Figure 2 and Figure 3 The reinforcement mechanism 2 includes a fixing groove 201, a pin hole 202, a fixing post 203, a stabilizing pin 204, a locking pin 205, and a limiting plate 206. The fixing groove 201 is disposed on the fixing bracket 3, and the fixing post 203 is disposed on the protective shell 11. The fixing post 203 is inserted into the fixing groove 201. The pin hole 202 passes through the fixing groove 201 and the fixing post 203. The stabilizing pin 204 passes through the pin hole 202 to lock the fixing post 203 and the fixing groove 201. The insertion of the stabilizing pin 204 achieves the initial locking of the protective shell 11 and the fixed bracket 3. To prevent the stabilizing pin 204 from loosening accidentally, the locking pin 205 is inserted into the internal through hole of the stabilizing pin 204. A limit plate 206 is provided on the locking pin 205 to prevent the locking pin 205 from coming out of the stabilizing pin 204. Through the multiple locking of the reinforcement mechanism 2, a rigid and stable connection between the protective shell 11 and the fixed bracket 3 in the non-buffered state is achieved.

[0034] As a preferred embodiment, please refer to Figure 1 To provide a stable mounting base for the buffer spring 7, the spring seat 6 is fixed to the plate 1. The spring seat 6 can be cylindrical or cup-shaped. The opening of the spring seat 6 faces the protective housing 11. The buffer spring 7 is preferably a helical compression spring. The buffer spring 7 is housed inside the spring seat 6. One end of the buffer spring 7 abuts against the bottom of the spring seat 6, and the other end of the buffer spring 7 abuts against the inner wall of the protective housing 11. This arrangement ensures that the buffer spring 7 will not shift laterally or bend when compressed, and can always stably absorb impact energy along its axial direction.

[0035] As another preferred embodiment, please refer to Figure 1In order to dissipate impact energy and suppress rebound, one end of the damper 5 is fixed to the plate 1, and the other telescopic end of the damper 5 is connected to the protective shell 11. The telescopic direction of the damper 5 is parallel to the axial direction of the positioning post 4. When the protective shell 11 is subjected to force and slides inward, the telescopic end of the damper 5 is compressed. When the buffer spring 7 pushes the protective shell 11 to rebound, the telescopic end of the damper 5 is stretched. In the bidirectional stroke of compression and stretching, the damper 5 can provide a speed-related damping force, effectively converting the impact kinetic energy into heat energy and dissipating it, preventing the protective shell 11 from producing violent or repeated reciprocating rebounds.

[0036] As another preferred embodiment, please refer to Figure 2 In order to provide the first-level buffer at the moment of impact, a silicone buffer layer 9 is disposed between the protective shell 11 and the plate 1. The silicone buffer layer 9 is preferably a continuous pad layer surrounding the inner edge of the protective shell 11. The silicone buffer layer 9 can also be an array of buffer blocks disposed on the surface of the plate 1 corresponding to the position of the protective shell 11. The silicone buffer layer 9 utilizes the high elasticity and damping properties of silicone material to immediately undergo elastic deformation in the initial stage when the protective shell 11 is subjected to slight scratches or high-speed impacts, providing initial buffering, absorbing high-frequency vibrations, and filling any gaps that may exist between the protective shell 11 and the plate 1, ensuring that the two are tightly attached when not under stress.

[0037] As another preferred embodiment, please refer to Figure 1 and Figure 2 In order to provide auxiliary fixing force in the non-stressed state, the magnetic block 8 is set on the outer wall of the plate 1, and the inner wall of the protective shell 11 is also provided with the magnetic block 8. The magnetic block 8 on the inner wall of the protective shell 11 and the magnetic block 8 on the outer wall of the plate 1 are positioned correspondingly and opposite in polarity and magnetically attracted to each other. The magnetic block 8 is preferably a permanent magnet, which can help the reinforcement mechanism 2 to keep the protective shell 11 in the initial position and prevent abnormal noise caused by slight vibration. At the same time, when an impact occurs, the magnetic force can be overcome by the impact force greater than the set threshold, without affecting the protective shell 11 to slide inward to activate the buffer spring 7 and the damper 5.

[0038] Working principle:

[0039] When an external object scratches or impacts the protective housing 11, the protective housing 11 first undergoes initial buffering through the silicone buffer layer 9 set between the protective housing 11 and the plate 1. At this time, the silicone buffer layer 9 undergoes elastic deformation to absorb the impact force in the first stage. As the impact force continues to act, the protective housing 11 is forced to move inward. During the process of the protective housing 11 moving inward, the positioning sleeve 10 set on the inner wall of the protective housing 11 will slide along the positioning post 4 set on the fixed bracket 3. The sliding cooperation between the positioning sleeve 10 and the positioning post 4 achieves precise guidance and limiting, ensuring that the protective housing 11 always moves straight along the axial trajectory of the positioning post 4 when subjected to force, avoiding lateral displacement or torsion of the protective housing 11, and ensuring the stable operation of the subsequent buffer components.

[0040] The inner side of the protective shell 11, which slides inward, begins to compress the buffer spring 7. The buffer spring 7 is compressed within the spring seat 6 fixed on the plate 1. The buffer spring 7 further unloads and absorbs the main impact energy through compression deformation. During the entire process of the protective shell 11 sliding inward and the buffer spring 7 rebounding, the damper 5 installed on the outer wall of the plate 1 extends and retracts synchronously. One end of the damper 5 is fixed to the plate 1, and the other extendable end of the damper 5 is connected to the protective shell 11. The damper 5 effectively absorbs the impact energy and dissipates the energy, suppressing the violent rebound and reciprocating oscillation that the buffer spring 7 may produce after unloading, so that the protective shell 11 can smoothly absorb the impact and slowly reset.

[0041] During the buffering process, the magnetic blocks 8 on the outer wall of the plate 1 and the inner wall of the protective shell 11, which also has magnetic blocks 8, provide auxiliary fixing force through magnetic attraction to help maintain the stability of the structure. The protective shell 11 and the fixing bracket 3 are always firmly connected by the reinforcement mechanism 2. The reinforcement mechanism 2 is inserted into the fixing groove 201 on the fixing bracket 3 by the fixing post 203 on the protective shell 11, and locked by the stabilizing pin 204 that passes through the pin hole 202 of the fixing groove 201 and the fixing post 203. The locking pin 205 in the internal through hole of the fixing pin 204 and the limiting plate 206 on the locking pin 205 are finally locked. The reinforcement mechanism 2 ensures the rigid structural stability of the entire device when it is not impacted. Finally, through the initial buffering of the silicone buffer layer 9, the main unloading of the buffer spring 7, the energy absorption and rebound suppression of the damper 5, the precise guidance of the positioning column 4 and the positioning sleeve 10, and the synergistic stabilizing effect of the magnetic block 8 and the reinforcement mechanism 2, the problem that the existing fender protection device cannot effectively absorb and buffer strong scraping impact force is solved.

Claims

1. A modified anti-scratch protection device for fenders, comprising a fixing bracket (3) and a protective shell (11); Its features are, It also includes a reinforcement mechanism (2), a positioning column (4), a plate (1) fixedly connected to the fixed bracket (3), a damper (5) installed on the outer wall of the plate (1), a spring seat (6), a buffer spring (7), a magnetic block (8) set on the outer wall of the plate (1), a silicone buffer layer (9), and a positioning sleeve (10) set on the inner wall of the protective shell (11); The positioning sleeve (10) is slidably fitted on the positioning post (4), the silicone buffer layer (9) is disposed between the protective shell (11) and the plate (1), the inner side of the protective shell (11) compresses the buffer spring (7), the buffer spring (7) is housed in the spring seat (6), and the telescopic end of the damper (5) is connected to the inner wall of the protective shell (11). The protective shell (11) and the fixed bracket (3) are securely connected by the reinforcement mechanism (2). The inner wall of the protective shell (11) is also provided with a magnetic block (8). The magnetic block (8) on the inner wall of the protective shell (11) and the magnetic block (8) on the outer wall of the plate (1) are magnetically attracted to each other.

2. The fender retrofit anti-scratch protection device according to claim 1, characterized in that, The reinforcement mechanism (2) includes a fixing groove (201), a pin hole (202), a fixing post (203), a stabilizing pin (204), and a locking pin (205).

3. The fender retrofit anti-scratch protection device according to claim 2, characterized in that, The fixing groove (201) is disposed on the fixing bracket (3), and the fixing column (203) is disposed on the protective shell (11).

4. The fender modification anti-scratch protection device according to claim 3, characterized in that, The fixing post (203) is inserted into the fixing groove (201), and the pin hole (202) passes through the fixing groove (201) and the fixing post (203).

5. A fender retrofit anti-scratch protection device according to claim 4, characterized in that, The stabilizing pin (204) is inserted into the pin hole (202) to lock the fixing post (203) and the fixing groove (201).

6. A fender retrofit anti-scratch protection device according to claim 5, characterized in that, The locking pin (205) is inserted into the internal through hole of the stabilizing pin (204).

7. A fender retrofit anti-scratch protection device according to claim 6, characterized in that, A limit plate (206) is provided on the locking pin (205).

8. The fender modification anti-scratch protection device according to claim 1, characterized in that, The spring seat (6) is fixed on the plate (1), one end of the buffer spring (7) abuts against the bottom of the spring seat (6), and the other end of the buffer spring (7) abuts against the protective shell (11).

9. A fender retrofit anti-scratch protection device according to claim 1, characterized in that, One end of the damper (5) is fixed to the plate (1), and the other retractable end of the damper (5) is connected to the protective shell (11).

10. A fender retrofit anti-scratch protection device according to claim 1, characterized in that, The silicone buffer layer (9) is used to provide initial cushioning when the protective shell (11) is impacted.

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