Vehicle barrier protection structure

CN224603082UActive Publication Date: 2026-08-07ZHEJIANG POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG POWER TECH CO LTD
Filing Date
2025-11-03
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0004]现有的老年人四轮代步车为了便于老年人上下车,通常车体底盘的离地间隙较小,此时,固定安装在车体前部的防护机构也会随着车体底盘的降低而下降,导致在通过减速带或上坡时,防护机构易与地面刮蹭,长期使用后损坏防护结构,影响防护效果,使用起来较为不便

Benefits of technology

1.通过正向防护板、连接板、转动套、支撑板、滑块、压缩弹簧的设置,使得正向防护板能够进行转动,使得减速带或部分固定杂物能够通过,避免正向防护板与地面产生硬性碰撞造成损伤,通过转动块、固定套、扭簧的设置,使得侧向防护板能够进行转动,从而导向杂物在侧向防护板的外表面进行移动,避免杂物碰撞前轮,实现避障,保证安全。

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Abstract

This application discloses a vehicle obstacle avoidance and protection structure, relating to the field of vehicle protection. It includes a vehicle body, mounting components, and protective components. Through the arrangement of a front protective plate, connecting plate, rotating sleeve, support plate, slider, and compression spring, the front protective plate can rotate, allowing speed bumps or partially fixed debris to pass through, preventing hard collisions between the front protective plate and the ground that could cause damage. The side protective plate rotates through a rotating block, fixed sleeve, and torsion spring, guiding colliding debris and preventing it from hitting the front wheels, thus achieving obstacle avoidance and ensuring safety. By rotating a threaded rod, which engages with a locking nut, the threaded rod moves an L-shaped fixing seat, separating it from the insert block and unlocking it. Rotating the threaded rod outwards allows it to move out of the openings on both sides of the fixing plate, removing the L-shaped fixing seat for easy maintenance of the front and side protective plates.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle protection technology, and in particular to a vehicle obstacle avoidance and protection structure. Background Technology

[0002] Four-wheeled mobility scooters for the elderly are personal electric short-distance transportation tools designed specifically for elderly people with mobility difficulties. They are usually four-wheeled, powered by batteries, have low speed, and are easy to operate. They are designed to enhance the user's ability to move independently and are convenient equipment that integrates mobility, rehabilitation, and daily living assistance.

[0003] Existing four-wheeled mobility scooters for the elderly primarily protect the front of the vehicle with bumpers or guardrails made of metal or engineering plastics. These rigid structures absorb and disperse the initial impact of a frontal collision, while some designs incorporate cushioning materials to absorb some energy and create crumple zones. This reduces vehicle damage and protects the safety of passengers, minimizing accidental injuries.

[0004] To make it easier for seniors to get on and off, existing four-wheeled mobility scooters for the elderly usually have a low ground clearance. As a result, the protective mechanism fixed to the front of the vehicle also lowers with the chassis, making it easy for the protective mechanism to scrape against the ground when going over speed bumps or going uphill. Over time, this damages the protective structure, affects the protective effect, and makes the vehicle inconvenient to use. Utility Model Content

[0005] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a vehicle obstacle avoidance and protection structure.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a vehicle obstacle avoidance and protection structure, comprising: Vehicle body; The mounting assembly is located at the bottom of the vehicle body. The mounting assembly includes a mounting block that is fixedly installed at the bottom of the vehicle body. Two connecting blocks are installed on the side of the mounting block away from the vehicle body. A fixing plate is installed on the mounting block through the connecting blocks. An L-shaped fixing seat is provided on the side of the fixing plate away from the mounting block. Two threaded rods are provided on the side of the L-shaped fixing seat close to the fixing plate. Locking nuts are engaged with the outer surfaces of the threaded rods. A protective component is disposed on the side of the mounting component away from the vehicle body. The protective component includes a mounting bracket fixedly mounted on the side of the L-shaped mounting base away from the vehicle body. A lateral protective plate is provided on the outer surface of the vertical part of the mounting bracket. A rotating sleeve is movably mounted on the outer surface of the horizontal part of the mounting bracket. A connecting plate is mounted on the outer surface of the rotating sleeve. A front protective plate is fixedly mounted on the side of the connecting plate away from the rotating sleeve.

[0007] As a preferred embodiment of the vehicle obstacle avoidance and protection structure of this utility model, a limiting seat is installed on the upper surface of the L-shaped fixed seat, and two rectangular grooves are opened on the outer surface of the limiting seat. A slider is slidably arranged inside the rectangular groove, and a compression spring is installed between the slider and the bottom of the inner cavity of the rectangular groove. A baffle is installed on the inner wall of the rectangular groove, and a rectangular opening that cooperates with the baffle is opened inside the slider. A support plate is hinged to the top of the slider, and the end of the support plate away from the slider is hinged to the outer surface of the positive protective plate.

[0008] As a preferred embodiment of the vehicle obstacle avoidance and protection structure of this utility model, the L-shaped fixing seat is hinged to a mounting plate on the side near the fixing plate, and the threaded rod is movably connected to the outer surface of the mounting plate at one end near the L-shaped fixing seat.

[0009] As a preferred embodiment of the vehicle obstacle avoidance and protection structure of this utility model, two fixing sleeves are fixedly installed on the outer surface of the vertical part of the fixing frame, and two rotating blocks are installed on the side of the two lateral protective plates near the fixing frame. The rotating blocks are movably installed on the outer surface of the vertical part of the fixing frame, and a torsion spring is installed between the rotating blocks and the fixing sleeves.

[0010] As a preferred embodiment of the vehicle obstacle avoidance and protection structure of this utility model, an abutment block is installed on the side of the fixing plate near the L-shaped fixing seat, an insertion block is installed on the side of the abutment block near the L-shaped fixing seat, and a slot that mates with the insertion block is provided on the outer surface of the L-shaped fixing seat.

[0011] As a preferred embodiment of the vehicle obstacle avoidance and protection structure of this utility model, both ends of the fixing plate are provided with openings that cooperate with the threaded rod, and the side of the fixing plate away from the L-shaped fixing seat is provided with a groove that cooperates with the locking nut.

[0012] (III) Beneficial Effects This utility model provides a vehicle obstacle avoidance and protection structure. It has the following beneficial effects: 1. The front guard plate, connecting plate, rotating sleeve, support plate, slider, and compression spring are designed to allow the front guard plate to rotate, enabling speed bumps or some fixed debris to pass through, thus preventing the front guard plate from colliding with the ground and causing damage. The rotating block, fixed sleeve, and torsion spring are designed to allow the side guard plate to rotate, thereby guiding debris to move on the outer surface of the side guard plate, preventing debris from colliding with the front wheels, achieving obstacle avoidance, and ensuring safety.

[0013] 2. By rotating the threaded rod, the locking nut is engaged with the threaded rod and then inserted into the slot on the outer surface of the fixed plate, preventing it from rotating. The threaded rod then moves the L-shaped fixing seat, separating it from the insert block and unlocking the plate. Rotating the threaded rod outwards allows it to move out of the openings on both sides of the fixed plate, allowing the L-shaped fixing seat to be removed for easy maintenance of the front and side protective plates. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the bottom structure of the vehicle body of this utility model.

[0017] Figure 3 This is an exploded structural diagram of the mounting component of this utility model.

[0018] Figure 4 This is a schematic diagram of the exploded structure of the protective component of this utility model.

[0019] Figure 5 This is a utility model Figure 4 A magnified structural diagram of A in the middle.

[0020] Figure 6 This is an exploded structural diagram of the baffle of this utility model.

[0021] In the diagram, 1. Vehicle body; 2. Protective components; 201. Fixing sleeve; 202. Rotating block; 203. Side protective plate; 204. Front protective plate; 205. Connecting plate; 206. Limiting seat; 207. Fixing frame; 208. Rotating sleeve; 209. Support plate; 210. Slider; 211. Compression spring; 212. Baffle; 3. Mounting components; 301. L-shaped fixing seat; 302. Threaded rod; 303. Mounting plate; 304. Locking nut; 305. Mounting block; 306. Fixing plate; 307. Connecting block; 308. Abutment block; 309. Insertion block. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Example 1 Reference Figure 1 , Figure 2 as well as Figure 3 This is the first embodiment of the present invention, which provides a vehicle obstacle avoidance and protection structure, including: Vehicle body 1; Mounting component 3 is located at the bottom of vehicle body 1. Mounting component 3 includes mounting block 305 fixedly mounted at the bottom of vehicle body 1. Two connecting blocks 307 are mounted on the side of mounting block 305 away from vehicle body 1. Mounting block 305 is mounted with fixing plate 306 through connecting blocks 307. An L-shaped fixing seat 301 is provided on the side of fixing plate 306 away from mounting block 305. Two threaded rods 302 are provided on the side of L-shaped fixing seat 301 close to fixing plate 306. Locking nuts 304 are engaged with the outer surface of threaded rods 302.

[0024] like Figure 2 as well as Figure 3 In this embodiment, an abutment block 308 is installed on the side of the fixing plate 306 near the L-shaped fixing seat 301, and an insertion block 309 is installed on the side of the abutment block 308 near the L-shaped fixing seat 301. The outer surface of the L-shaped fixing seat 301 is provided with a slot that mates with the insertion block 309. By setting the abutment block 308, when the L-shaped fixing seat 301 and the insertion block 309 are inserted, as the threaded rod 302 is rotated, the L-shaped fixing seat 301 gradually moves closer to the fixing plate 306, thereby abutting against the abutment block 308. Then, with the cooperation of the threaded rod 302 and the locking nut 304, locking is ensured.

[0025] like Figure 3 In this embodiment, both ends of the fixing plate 306 are provided with openings that cooperate with the threaded rod 302, and the side of the fixing plate 306 away from the L-shaped fixing seat 301 is provided with a groove that cooperates with the locking nut 304.

[0026] Furthermore, by rotating the threaded rod 302, the locking nut 304 is engaged with the threaded rod 302 and locked in the slot on the outer surface of the fixing plate 306, thus preventing rotation. The threaded rod 302 then moves the L-shaped fixing seat 301, thereby separating it from the insert block 309 and unlocking it. By turning the threaded rod 302 outward, it moves out of the openings on both sides of the fixing plate 306, allowing the L-shaped fixing seat 301 to be removed for easy maintenance of the front protective plate 204 and the side protective plate 203.

[0027] Example 2 Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6This is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The protective component 2 is disposed on the side of the mounting component 3 away from the vehicle body 1. The protective component 2 includes a fixing frame 207 fixedly mounted on the side of the L-shaped fixing seat 301 away from the vehicle body 1. A lateral protective plate 203 is provided on the outer surface of the vertical part of the fixing frame 207. A rotating sleeve 208 is movably mounted on the outer surface of the horizontal part of the fixing frame 207. A connecting plate 205 is mounted on the outer surface of the rotating sleeve 208. A front protective plate 204 is fixedly mounted on the side of the connecting plate 205 away from the rotating sleeve 208.

[0028] like Figure 2 , Figure 4 as well as Figure 5 In this embodiment, a limiting seat 206 is installed on the upper surface of the L-shaped fixing seat 301. Two rectangular grooves are formed on the outer surface of the limiting seat 206. A slider 210 is slidably arranged inside the rectangular groove. A compression spring 211 is installed between the slider 210 and the bottom of the inner cavity of the rectangular groove. A baffle 212 is installed on the inner wall of the rectangular groove. A rectangular opening that cooperates with the baffle 212 is formed inside the slider 210. A support plate 209 is hinged to the top of the slider 210. The end of the support plate 209 away from the slider 210 is hinged to the outer surface of the positive protective plate 204. Through the cooperation of the baffle 212 and the rectangular opening inside the slider 210, the linear movement of the limiting slider 210 is realized. Furthermore, the setting of the baffle 212 can shield the rectangular groove on the outer surface of the limiting seat 206, reducing the influence of external impurities on the compression spring 211.

[0029] like Figure 4 as well as Figure 6 In this embodiment, the L-shaped fixing seat 301 is hinged to the mounting plate 306 on one side, and the threaded rod 302 is movably connected to the outer surface of the mounting plate 303 at one end near the L-shaped fixing seat 301.

[0030] like Figure 4 In this embodiment, two fixing sleeves 201 are fixedly installed on the outer surface of the vertical part of the fixing frame 207. Two rotating blocks 202 are installed on the side of the two side protective plates 203 near the fixing frame 207. The rotating blocks 202 are movably installed on the outer surface of the vertical part of the fixing frame 207. A torsion spring is installed between the rotating block 202 and the fixing sleeve 201. Limiting grooves that cooperate with the torsion spring are provided at both ends of the fixing sleeve 201 and on the side of the rotating block 202 near the fixing sleeve 201.

[0031] Furthermore, when the front of the vehicle body 1 collides with a speed bump or when the vehicle body 1 travels uphill, the bottom of the forward protective plate 204 contacts the speed bump or the raised ground, thereby causing the forward protective plate 204 to rotate through the connecting plate 205 and the rotating sleeve 208. During the rotation, the support plate 209, the slider 210, and the compression spring 211 provide buffering. After the vehicle body 1 passes, the forward protective plate 204 is reset. When the front of the vehicle body 1 collides with debris from the side, the torsion spring between the rotating block 202 and the fixed sleeve 201 causes the side protective plate 203 to rotate, thereby guiding the debris to move on the outer surface of the side protective plate 203, preventing the debris from colliding with the front wheels and achieving obstacle avoidance.

[0032] Working principle: When using the four-wheeled mobility scooter for the elderly, when the front of the vehicle body 1 collides with a speed bump or when the vehicle body 1 travels uphill, the bottom of the forward protective plate 204 contacts the speed bump or the raised ground. At this time, the bottom of the forward protective plate 204 is compressed, and through the setting of the connecting plate 205 and the rotating sleeve 208, the forward protective plate 204 rotates on the horizontal outer surface of the fixed frame 207, so that the bottom of the forward protective plate 204 can be raised, thereby reducing the friction and collision between the forward protective plate 204 and the ground. When the forward protective plate 204 rotates, the support plate 209 drives the slider 210 to move. The movement of the slider 210 compresses the spring 211. When the vehicle body 1 passes over a speed bump or fully ascends a slope, the spring 211 returns to its original position, causing the slider 210 to move the support plate 209 back to its original position, which in turn moves the forward protective plate 204 back to its original position. When the forward protective plate 204 collides with road stones or other objects, if the object is small, the spring force of the spring 211 provides support, thus providing protection through the forward protective plate 204. If the object is large, the spring 211 provides cushioning. Once the cushioning reaches the chassis, the forward protective plate 204 can no longer rotate. For rigid protection, when the front sides of the vehicle body 1 collide with an object, the side protection plate 203 provides buffer protection through the torsion spring between the rotating block 202 and the fixed sleeve 201. This guides debris to the sides, preventing damage to the vehicle body 1 from the front wheels, thus achieving obstacle avoidance and ensuring driving safety. After a period of use, if the outer surfaces of the front protection plate 204 and the side protection plate 203 show damage, the threaded rod 302 can be rotated. Through the engagement of the threaded rod 302 and the locking nut 304, the locking nut 304 is inserted into a slot on the outer surface of the fixed plate 306. Therefore, it cannot rotate, while the threaded rod 302 drives the L-shaped fixing seat 301 to move, thereby separating it from the insert block 309 and unlocking it. After unlocking, push the L-shaped fixing seat 301 closer to the fixing plate 306, thereby pulling the locking nut 304 out of the slot. Then, rotate the threaded rod 302 outward, so that the threaded rod 302 moves out of the openings on both sides of the fixing plate 306, thereby removing the L-shaped fixing seat 301. This allows the front protective plate 204 and the side protective plate 203 to be removed from the bottom of the vehicle body 1, making maintenance easier and finally completing the use of the obstacle avoidance and protection structure of the four-wheeled mobility vehicle for the elderly.

[0033] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A vehicle obstacle avoidance and protection structure, characterized in that, include: Vehicle body (1); Mounting assembly (3) is located at the bottom of vehicle body (1). Mounting assembly (3) includes mounting block (305) fixedly mounted at the bottom of vehicle body (1). Two connecting blocks (307) are mounted on the side of mounting block (305) away from vehicle body (1). Mounting block (305) is mounted with fixing plate (306) through connecting block (307). L-shaped fixing seat (301) is provided on the side of fixing plate (306) away from mounting block (305). Two threaded rods (302) are provided on the side of L-shaped fixing seat (301) close to fixing plate (306). Locking nut (304) is engaged with the outer surface of threaded rod (302). The protective component (2) is disposed on the side of the mounting component (3) away from the vehicle body (1). The protective component (2) includes a fixing frame (207) fixedly mounted on the side of the L-shaped fixing seat (301) away from the vehicle body (1). A lateral protective plate (203) is provided on the outer surface of the vertical part of the fixing frame (207). A rotating sleeve (208) is movably mounted on the outer surface of the horizontal part of the fixing frame (207). A connecting plate (205) is mounted on the outer surface of the rotating sleeve (208). A front protective plate (204) is fixedly mounted on the side of the connecting plate (205) away from the rotating sleeve (208).

2. The vehicle obstacle avoidance and protection structure according to claim 1, characterized in that: The upper surface of the L-shaped fixing seat (301) is equipped with a limiting seat (206). The outer surface of the limiting seat (206) has two rectangular grooves. A slider (210) is slidably arranged inside the rectangular groove. A compression spring (211) is installed between the slider (210) and the bottom of the inner cavity of the rectangular groove. A baffle (212) is installed on the inner wall of the rectangular groove. A rectangular opening that cooperates with the baffle (212) is opened inside the slider (210). A support plate (209) is hinged to the top of the slider (210). The end of the support plate (209) away from the slider (210) is hinged to the outer surface of the positive protective plate (204).

3. The vehicle obstacle avoidance and protection structure according to claim 2, characterized in that: The L-shaped fixing seat (301) is hinged to the mounting plate (306) on one side, and the threaded rod (302) is movably connected to the outer surface of the mounting plate (303) at one end near the L-shaped fixing seat (301).

4. The vehicle obstacle avoidance and protection structure according to claim 3, characterized in that: Two fixing sleeves (201) are fixedly installed on the outer surface of the vertical part of the fixing frame (207). Two rotating blocks (202) are installed on the side of the two side guard plates (203) near the fixing frame (207). The rotating blocks (202) are movably installed on the outer surface of the vertical part of the fixing frame (207). A torsion spring is installed between the rotating blocks (202) and the fixing sleeves (201).

5. A vehicle obstacle avoidance and protection structure according to claim 4, characterized in that: The fixing plate (306) has an abutment block (308) installed on the side near the L-shaped fixing seat (301), and the abutment block (308) has an insertion block (309) installed on the side near the L-shaped fixing seat (301). The outer surface of the L-shaped fixing seat (301) has a slot that matches the insertion block (309).

6. A vehicle obstacle avoidance and protection structure according to claim 5, characterized in that: Both ends of the fixing plate (306) are provided with openings that cooperate with the threaded rod (302), and the side of the fixing plate (306) away from the L-shaped fixing seat (301) is provided with a groove that cooperates with the locking nut (304).