Wheelchair front wheel buffer device

Abstract

The utility model belongs to the technical field of wheelchairs, particularly relates to a wheelchair front wheel buffering device, and provides the following scheme aiming at the problems that in the prior art, in the using process of a wheelchair, the wheelchair is prone to rollover, certain potential safety hazards exist, and in the moving process of the wheelchair, large-amplitude vibration can be generated, and the comfort degree in the using process is reduced. The adjusting device comprises an adjusting frame and four v-shaped front arm hoops arranged at the bottom of the adjusting frame. The front-sense angle-adjustable tensioning plugs are fixedly mounted at the bottoms of the four v-shaped front arm hoops respectively; the damping mechanism is arranged at the bottoms of the four front adjustable angle tensioning plugs and used for damping the wheelchair, and the damping mechanism comprises four universal shafts rotationally installed at the bottoms of the four front adjustable angle tensioning plugs. The large-amplitude vibration of the wheelchair in the moving process is avoided, and the comfort degree of the wheelchair is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the wheelchair technical field, especially to a wheelchair front wheel buffer device. BACKGROUND

[0002] The wheelchair is a medical special equipment, its function setting service object is specific people or the elderly, especially for the people who are inconvenient to move, it is not only a walking aid, but more importantly, it can travel and participate in social activities by means of the wheelchair, at present, the existing wheelchair on the market sets the buffer damping device on the front wheel of the wheelchair, so that the wheelchair can buffer and absorb shock when encountering uneven road or poor road condition, so as to alleviate the bumping of the wheelchair and improve the riding comfort, but the damping body in most buffer damping devices is vertically arranged, so it can buffer the up and down fluctuation, when the ground appears a higher step or other obstacles, the front wheel is easily blocked, the people who ride can only choose to detour or quickly push the manual wheel of the wheelchair, and finally can only seek the assistance of other personnel to push the wheelchair over the step or obstacle, which greatly affects the people who are inconvenient to move to travel alone and participate in social activities.

[0003] In the prior art, the wheelchair is prone to roll over during use, which has certain safety hazards, and the wheelchair will produce a large vibration during movement, which reduces the comfort during use. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the shortcomings that the wheelchair is prone to roll over during use in the prior art, which has certain safety hazards, and the wheelchair will produce a large vibration during movement, which reduces the comfort during use, and provides a wheelchair front wheel buffer device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A wheelchair front wheel buffer device comprises:

[0007] An adjusting frame and four v-shaped front arm hoops arranged at the bottom of the adjusting frame respectively;

[0008] A front adjustable angle tension plug is fixedly installed at the bottom of each v-shaped front arm hoop;

[0009] A damping mechanism is arranged at the bottom of each front adjustable angle tension plug and used for damping the wheelchair.

[0010] Preferably, the damping mechanism comprises four universal shafts rotatably installed at the bottom of each front adjustable angle tension plug, and one side of each universal shaft is fixedly installed with a rubber spring.

[0011] Preferably, one side of the four rubber springs is fixedly provided with a shock-absorbing rubber sheet, and one side of the four universal shafts is fixedly provided with a shock-absorbing front fork arm.

[0012] Preferably, the four shock-absorbing front fork arms are fixedly connected with the four shock-absorbing rubber sheets.

[0013] Preferably, a rotating shaft is rotatably arranged between the four shock-absorbing front fork arms.

[0014] Preferably, the outer surface of the rotating shaft is fixedly provided with a wheel.

[0015] In the utility model, the beneficial effects of the wheelchair front wheel buffering device are:

[0016] Due to the shock-absorbing mechanism and the shock-absorbing rubber sheet, the wheel can be buffered, more impact energy can be absorbed, the shock-absorbing effect is improved, and the shock-absorbing rubber sheet can effectively reduce the vibration caused by uneven road surface.

[0017] The utility model discloses a shock-absorbing mechanism and a shock-absorbing rubber sheet, which can buffer the wheel, absorb more impact energy, avoid the wheelchair from vibrating greatly during movement and improve the comfort of the wheelchair. DRAWINGS

[0018] Figure 1 The utility model discloses a left view structure schematic drawing of a wheelchair front wheel buffering device;

[0019] Figure 2 The utility model discloses a front view structure schematic drawing of a wheelchair front wheel buffering device;

[0020] Figure 3 The utility model discloses a top view structure schematic drawing of a wheelchair front wheel buffering device;

[0021] Figure 4 The utility model discloses a three-dimensional structure schematic drawing of a wheelchair front wheel buffering device.

[0022] Reference signs: 1, V-shaped front arm hoop; 2, front adjustable angle tensioning plug; 3, universal shaft; 4, rubber spring; 5, shock-absorbing front fork arm; 6, wheel. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0024] Embodiment one

[0025] Reference Figures 1-4A wheelchair front wheel buffering device comprises:

[0026] An adjusting frame and four V-shaped front arm clamps 1 arranged at the bottom of the adjusting frame respectively;

[0027] A front adjustable angle tension plug 2 fixedly arranged at the bottom of each V-shaped front arm clamp 1;

[0028] A damping mechanism arranged at the bottom of each front adjustable angle tension plug 2 for damping the wheelchair.

[0029] In the embodiment, the damping mechanism comprises four universal shafts 3 rotatably arranged at the bottom of each front adjustable angle tension plug 2, and a rubber spring is fixedly arranged at one side of each universal shaft 3.

[0030] In the embodiment, a damping rubber sheet is fixedly arranged at one side of each rubber spring 4, and a damping front fork arm 5 is fixedly arranged at one side of each universal shaft 3.

[0031] In the embodiment, each damping front fork arm 5 is fixedly connected with a damping rubber sheet.

[0032] In the embodiment, a rotating shaft is rotatably arranged between each damping front fork arm 5.

[0033] In the embodiment, a wheel 6 is fixedly arranged on the outer surface of the rotating shaft.

[0034] In the embodiment, when the front is blocked by an obstacle, the wheel 6 is lifted when passing above the obstacle, and the rotating shaft is driven to rotate, so that the wheel is rotated, the rubber spring 4 is compressed, the lifting force of the wheel 6 is buffered by the elastic force of the rubber spring 4, and the damping effect is achieved.

[0035] Embodiment two

[0036] The difference between the embodiment and the embodiment one is that a damper is arranged at the bottom of the damping rubber sheet, the damper can quickly absorb the vibration, and the wheelchair can quickly recover to a stable state.

[0037] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A wheelchair front wheel cushioning device, characterized by: The utility model relates to a four-wheel adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle adjustable angle ​ ​ ​ 2. A wheelchair front wheel cushioning device according to claim 1, characterized in that: ​ 3. A wheelchair front wheel cushioning device according to claim 2, characterized in that: ​ 4. A wheelchair front wheel cushioning device according to claim 3, characterized in that: ​ 5. A wheelchair front wheel cushioning device according to claim 4, characterized in that: ​ 6. A wheelchair front wheel cushioning device according to claim 5, characterized in that: ​

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