Shock absorption wheel structure of ultra-light high-strength portable rehabilitation wheelchair

Abstract

The utility model discloses a damping wheel structure of an ultralight high-strength portable rehabilitation wheelchair, which comprises two groups of wheels arranged at the front end of the ultralight high-strength portable rehabilitation wheelchair, and the two groups of wheels are fixedly connected with the ultralight high-strength portable rehabilitation wheelchair through fixing cylinders; damping assemblies are arranged at the fixing cylinders, and the wheels conduct damping treatment on the ultra-light high-strength portable rehabilitation wheelchair through the damping assemblies. According to the damping wheelchair, through the arranged damping assembly, bumping and vibration borne by the wheels in the running process can be effectively absorbed and buffered, the influence of vibration on the whole wheelchair and a user is reduced, the comfort and stability of the wheelchair are improved, and the fatigue feeling and discomfort of the user caused by long-term riding of the wheelchair are reduced; the physical rehabilitation of the user and the improvement of the life quality are facilitated.

Description

Technical Field

[0001] This utility model relates to a shock-absorbing wheel structure for an ultralight, high-strength portable rehabilitation wheelchair. Background Technology

[0002] With social development and the increasing aging of the population, rehabilitation wheelchairs have become an indispensable assistive tool in the lives of many people with mobility impairments. The shock absorption systems of existing rehabilitation wheelchairs are relatively simple, usually relying on simple buffer devices between the wheels and the wheelchair body, such as springs or rubber pads. These shock absorption methods have limited shock absorption effects when facing complex road conditions, and cannot effectively filter out bumps, which can easily lead to user discomfort and fatigue, and may even aggravate the user's physical injury.

[0003] Traditional wheelchairs have relatively simple wheel shock absorption structures and lack optimized design at the connection between the wheels and the wheelchair body. This results in insufficient stability during use, making the wheelchair prone to swaying or vibration transmission, affecting its maneuverability and safety. Therefore, a shock-absorbing wheel structure for an ultralight, high-strength portable rehabilitation wheelchair is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a shock-absorbing wheel structure for an ultralight, high-strength, portable rehabilitation wheelchair, in order to solve the problem mentioned in the background art that the shock-absorbing structure of traditional wheelchair wheels is relatively simple, cannot effectively filter bumps, and easily leads to user discomfort and fatigue.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a shock-absorbing wheel structure for an ultralight high-strength portable rehabilitation wheelchair, including two sets of wheels disposed at the front end of the ultralight high-strength portable rehabilitation wheelchair, the two sets of wheels being fixedly connected to the ultralight high-strength portable rehabilitation wheelchair through a fixing cylinder;

[0006] A shock-absorbing component is provided at the fixed cylinder.

[0007] The wheels utilize shock-absorbing components to provide shock absorption for the ultralight, high-strength portable rehabilitation wheelchair.

[0008] Preferably, the shock absorption assembly includes a connecting frame connected to the wheel, and a pressure relief rod is provided at the top of the connecting frame, with one end of the pressure relief rod inserted into the interior of the fixed cylinder.

[0009] Preferably, a damping spring is provided on the outer periphery of the pressure relief rod, and the damping spring is located between the fixed cylinder and the connecting frame.

[0010] Preferably, the lower two sides of the fixed cylinder are provided with compression wing plates, and the length of the compression wing plates is larger than the inner diameter of the shock-absorbing spring, so that the compression wing plates can compress the shock-absorbing spring.

[0011] Preferably, a sealing liner is provided on the upper part of the inner wall of the fixed cylinder, and a sealing plug is slidably connected inside the sealing liner. The lower part of the sealing plug is connected to the pressure relief rod through a connecting rod.

[0012] Preferably, the lower part of the sealing liner has a channel that cooperates with the connecting rod, so that the connecting rod can move inside the sealing liner by connecting the sealing plug through the channel.

[0013] Preferably, the outer diameter of the sealing plug is larger than the inner diameter of the channel, so that the pressure relief rod is limited by the sealing plug at the lower part of the sealing liner.

[0014] Preferably, the upper part of the pressure-relieving rod is cylindrical, and the pressure-relieving rod is fitted with the fixed cylinder so that the pressure-relieving rod can rotate inside the fixed cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, through its shock-absorbing components, can effectively absorb and buffer the bumps and vibrations experienced by the wheels during driving, reducing the impact of vibrations on the wheelchair as a whole and on the user, improving the comfort and stability of the wheelchair, reducing fatigue and discomfort caused by prolonged wheelchair use, and contributing to the user's physical rehabilitation and improved quality of life.

[0017] The shock absorber assembly, consisting of a pressure-reducing rod, a damping spring, and sealing bushings and plugs, works together to form a highly efficient and stable damping system. When a wheel is impacted, the pressure-reducing rod moves within the fixed bushing, causing the damping spring to compress or stretch, thus buffering and absorbing the impact force. Simultaneously, the sealing bushings and plugs not only prevent dust and debris from entering the shock absorber assembly, extending its lifespan, but also increase the damping effect during shock absorption, resulting in a smoother and more comfortable ride.

[0018] The overall structure is rationally designed, with components working in harmony to achieve both excellent shock absorption and lightweight portability. Compared to traditional shock-absorbing wheelchairs, this invention significantly improves shock absorption performance without adding excessive weight or cost, possessing high practical value and market competitiveness. It better meets the needs of people with mobility impairments for comfort, stability, and portability in rehabilitation wheelchairs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the shock-absorbing component according to an embodiment of the present utility model;

[0021] Figure 3This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the shock absorption component structure according to an embodiment of the present utility model;

[0023] Figure 5 This is a schematic diagram of the pressure-relieving rod structure according to an embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram of the fixed cylinder structure according to an embodiment of the present utility model;

[0025] Figure 7 This is a cross-sectional view of the fixed cylinder structure according to an embodiment of the present invention.

[0026] In the diagram: 1. Wheel; 2. Fixed cylinder; 3. Shock absorber assembly; 301. Connecting frame; 302. Pressure relief rod; 303. Shock absorption spring; 304. Extrusion wing plate; 305. Sealing liner; 3051. Channel; 306. Sealing plug; 307. Connecting rod. Detailed Implementation

[0027] To address the problem that traditional wheelchairs have relatively simple wheel shock absorption structures that cannot effectively filter bumps, easily leading to user discomfort and fatigue, this utility model provides a shock-absorbing wheel structure for an ultralight, high-strength, portable rehabilitation wheelchair. The technical solutions 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, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1-7 This utility model provides a shock-absorbing wheel structure for an ultralight and high-strength portable rehabilitation wheelchair, including two sets of wheels 1 disposed at the front end of the ultralight and high-strength portable rehabilitation wheelchair, and the two sets of wheels 1 are fixedly connected to the ultralight and high-strength portable rehabilitation wheelchair through a fixing cylinder 2.

[0029] A shock-absorbing assembly 3 is provided at the fixed cylinder 2. The shock-absorbing assembly 3 includes a connecting frame 301 connected to the wheel 1. A pressure-relieving rod 302 is provided at the top of the connecting frame 301, and one end of the pressure-relieving rod 302 is inserted into the interior of the fixed cylinder 2. A damping spring 303 is provided on the outer periphery of the pressure-relieving rod 302, and the damping spring 303 is located between the fixed cylinder 2 and the connecting frame 301. Compression wing plates 304 are provided on both sides of the lower part of the fixed cylinder 2, and the length of the compression wing plates 304 is larger than the inner diameter of the shock-relieving spring, so that the compression wing plates 304 compress the shock-relieving spring. A sealing liner 305 is provided on the upper part of the inner wall of the fixed cylinder 2, and a sealing plug 306 is slidably connected inside the sealing liner 305. The lower part of the sealing plug 306 is connected to the pressure-relieving rod 302 through a connecting rod 307. The lower part of the sealing sleeve 305 has a channel 3051 that mates with the connecting rod 307, allowing the connecting rod 307 to move within the sealing sleeve 305 via the channel 3051 and the sealing plug 306. The outer diameter of the sealing plug 306 is larger than the inner diameter of the channel 3051, so that the pressure-relieving rod 302 is limited at the lower part of the sealing sleeve 305 by the sealing plug 306. The upper part of the pressure-relieving rod 302 is cylindrical, and the pressure-relieving rod 302 is fitted with the fixed cylinder 2 to allow the pressure-relieving rod 302 to rotate inside the fixed cylinder 2.

[0030] The wheel 1 is used to dampen the ultralight and high-strength portable rehabilitation wheelchair through the shock absorption component 3.

[0031] The working principle of the shock-absorbing wheel structure of the ultra-lightweight, high-strength portable rehabilitation wheelchair provided by this utility model is as follows: When the wheelchair is traveling on the road, when the wheel 1 is subjected to bumps and vibrations, the connecting frame 301 moves together with the wheel 1, and the pressure-reducing rod 302 at the top of the connecting frame 301 is inserted into the fixed cylinder 2 to buffer the impact force.

[0032] The shock-absorbing spring 303 on the outer periphery of the pressure-absorbing rod 302 is located between the fixed cylinder 2 and the connecting frame 301. When the pressure-absorbing rod 302 moves inside the fixed cylinder 2, the shock-absorbing spring 303 is compressed or stretched accordingly, effectively absorbing impact energy and reducing vibration.

[0033] The compression wing plates 304 on both sides of the lower part of the fixed cylinder 2 are longer than the inner diameter of the shock-absorbing spring, which can compress the shock-absorbing spring, enhance the shock absorption effect, and make the wheelchair more stable in complex road conditions.

[0034] A sealing plug 306 is slidably connected inside a sealing liner 305 on the upper part of the inner wall of the fixed cylinder 2. The lower part of the sealing plug 306 is connected to the pressure-relieving rod 302 via a connecting rod 307. The movement of the pressure-relieving rod 302 causes the sealing plug 306 to slide inside the sealing liner 305. The sealing plug 306 compresses the air inside the sealing liner 305, increasing the air pressure and thus producing a damping effect, making the shock absorption more stable. At the same time, it prevents dust and debris from entering the shock absorption assembly 3, extending its service life.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock-absorbing wheel structure for an ultralight, high-strength, portable rehabilitation wheelchair, characterized in that: It includes two sets of wheels (1) set at the front end of the ultralight high-strength portable rehabilitation wheelchair, and the two sets of wheels (1) are fixedly connected to the ultralight high-strength portable rehabilitation wheelchair through a fixing cylinder (2); A shock-absorbing component (3) is provided at the fixed cylinder (2). The shock-absorbing component (3) includes a connecting frame (301) connected to the wheel (1). A pressure-relieving rod (302) is provided at the top of the connecting frame (301). One end of the pressure-relieving rod (302) is inserted into the inside of the fixed cylinder (2). A damping spring (303) is provided on the outer periphery of the pressure relief rod (302), and the damping spring (303) is located between the fixed cylinder (2) and the connecting frame (301); The lower two sides of the fixed cylinder (2) are provided with extrusion wing plates (304), and the length of the extrusion wing plate (304) is larger than the inner diameter of the shock absorber spring, so that the extrusion wing plate (304) extrudes the shock absorber spring. A sealing liner (305) is provided on the upper part of the inner wall of the fixed cylinder (2), and a sealing plug (306) is slidably connected inside the sealing liner (305). The lower part of the sealing plug (306) is connected to the pressure relief rod (302) through a connecting rod (307). The lower part of the sealing sleeve (305) is provided with a channel (3051) that cooperates with the connecting rod (307) so that the connecting rod (307) can move inside the sealing sleeve (305) by connecting the sealing plug (306) through the channel (3051); The wheel (1) is used to dampen the ultralight and high-strength portable rehabilitation wheelchair through the shock absorption component (3).

2. The shock-absorbing wheel structure of an ultralight, high-strength portable rehabilitation wheelchair according to claim 1, characterized in that: The outer diameter of the sealing plug (306) is larger than the inner diameter of the channel (3051) so that the pressure relief rod (302) is limited by the sealing plug (306) at the lower part of the sealing liner (305).

3. The shock-absorbing wheel structure of an ultralight, high-strength portable rehabilitation wheelchair according to claim 2, characterized in that: The upper part of the pressure relief rod (302) is cylindrical, and the pressure relief rod (302) is fitted with the fixed cylinder (2) so that the pressure relief rod (302) can rotate inside the fixed cylinder (2).

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