Electric wheelchair capable of walking up and down stairs

A technology for electric wheelchairs and wheelchairs, which can be applied to patient chairs or special transportation tools, vehicle rescue, medical transportation, etc., and can solve the problems of inconvenient use, high price, and complex structure.

Inactive Publication Date: 2016-11-23
吴大平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are also some electric wheelchairs that can go up and down stairs, but the structure is relatively complicated and t...

Method used

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  • Electric wheelchair capable of walking up and down stairs
  • Electric wheelchair capable of walking up and down stairs
  • Electric wheelchair capable of walking up and down stairs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 Given structure, shown in (1), (2), (3), (4), (5), (6), (7), (8) among the figure is that the existing production can be on level ground An electric wheelchair that runs on twin rear wheels with independent drive. A person sits on the seat (5), puts his feet on the pedal (7), adjusts the control handle (8) to rotate the motor, and the motor output gear (4) is driven by a chain (or gear set) and fixed to the rear wheel (2) The gears (3) together drive the rear wheels to rotate, the wheelchair can move forward or backward, and the wheelchair can turn when there is a differential speed between the two rear wheels. The power that wheel transmits turns to automatically (accumulator is not drawn in the figure).

[0015] A crawler track (15) is respectively installed near the rear inner side of the rims (generally steel or aluminum alloy products) of the two rear wheels (2) now, and the inclination angle φ ...

Embodiment 2

[0041] According to the structure given in Example 1, when the diameter of the rear wheel is greater than or equal to 20 inches, refer to Figure 6 , an annular base plate (23) is installed on the inboard of the rear driving wheel of the wheelchair, and several stair climbing bars (25) that can slide in the slideway (24) are arranged along the base plate, between the slideway (24) and the stair climbing bar (25) ) between springs (26), the top of the stair climbing rod (25) is provided with rollers (27) on one side of the center of the drive wheel, and when the rollers (27) do not apply external force, the sliding stair climbing rods (25) are placed on the spring (26 ) is at the extreme position towards the center of the drive wheel. A briquetting block (28) is respectively set in the fourth quadrant of the two rear wheels (2) (the part that can touch the stairs when going upstairs backwards), and this briquetting block is concentric with the rear wheel, and is fixed together ...

Embodiment 3

[0053] According to the structure provided by Embodiment 1 and 2, when the wheelchair goes upstairs or downstairs, the operator needs to operate the operating lever (8) at any time to make the wheelchair run, and also operate the switches K1, K2, K3, K4 to keep the wheelchair running. The seat is always in the normal position, and such an operation is very troublesome and not easy to grasp. Now the wheelchair is equipped with an angle detection device (such as a gyroscope) JDJC, which can detect the angle deviation α between the front and rear direction of the wheelchair and the horizontal line, and the angle deviation β between the left and right direction and the horizontal line. The detected α signal is processed by the circuit. Automatically control K1 and K2 to automatically adjust the offset between the front and rear directions of the wheelchair and the horizontal line, and keep the front and rear directions of the seat in a normal position; the detected β signal is proc...

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Abstract

The invention provides an electric wheelchair capable of advancing and retreating on smooth ground and walking up and down stairs, and belongs to the technical field of electric wheelchairs. A person with normal intelligence can operate the wheelchair to walk up and down the stair by himself/herself. A caterpillar band or a set of going upstairs rods are mounted near the rear portion of each main driving wheel of the currently produced and used electric wheelchair with a front wheel and rear wheels driven independently, the two rear wheels are driven by a motor through a differential mechanism, the main driving wheels have no effect when the wheelchair runs on a flat road, the caterpillar bands or the going upstairs rods can be clamped on the planes on the front ends of the stairs when the wheelchairs go up and down the stairs, the wheels are prevented from slipping on the stairs, and the wheelchair is assisted in going up the stairs. An X-shaped supporting frame and a supporting wheel set are mounted on the front bottom of the wheelchair, and when the wheelchair goes up and down the stairs, the wheel set is supported on the stairs, and the normal position of a seat part where the person sits is kept unchanged.

Description

technical field [0001] The invention relates to an electric wheelchair which uses a storage battery as an energy source and can not only run on a flat road but also go up and down stairs under the control of the user or others, and is used for the elderly, physically weak or disabled people to go up and down the stairs. and travel use. The utility model belongs to the technical field of electric wheelchairs. Background technique [0002] At present, there are also some electric wheelchairs for going up and down stairs, but the structure is more complicated and the price is high. And have some even the passenger's intelligence is normal also must have normal person's assistance, use inconvenient. Contents of the invention [0003] The task of the present invention is to provide an electric wheelchair that can not only move forward and backward on a flat ground (including flat ramps), but also can go up and down stairs, and has a simple structure and low cost. Riders with...

Claims

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Application Information

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IPC IPC(8): A61G5/06A61G5/10
Inventor 吴大平
Owner 吴大平
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