Light electric wheeled chair

Abstract

The present invention relates to a light wheelchair. It includes the following several portions: wheelchair frame, front steering wheel, front roller, rear wheels, left armrest tube, right armrest tube, vertical tube, fixed plate, hollow bearing, manual operation lever, manual brake handle, motor, electric brake, and motor switch. Besides, said invention also provides the connection mode of all the above-mentioned portions and the concrete operation method of said light wheelchair.

Description

Technical field: [0001] The invention relates to a special vehicle for the elderly and the disabled, and is an electric wheelchair. Background technique: [0002] At present, the electric wheelchairs on the domestic market are mainly from overseas, including the United States, New Zealand and Taiwan. There are also imitation and assembled products in Shanghai. Its advantages are: the intelligent joystick is more advanced, but most of them are bulky, the weight of the whole vehicle is 60kg ~ 120kg, it cannot be folded, and the driving distance is short. The main reason for the short driving distance is due to the one-sided pursuit of self-locking at all times in the design, and a large amount of electric energy does virtual work. The motor indirectly drives the rear wheels through a self-locking worm gear, and the intelligent joystick is constantly monitored and operated through an electromagnetic brake. This double self-locking makes the wheelchair always in a state of being brak...

AI Technical Summary

Problems solved by technology

The portable electric wheelchair comprises a wheelchair frame, a standpipe, a horizontal support pipe, a main standpipe, a rear wheel, a front steering wheel, a front universal wheel, left and right handrail tubes and handrails, and is characterized in that: Bend into an elbow, install a speed-regulating handle on the right elbow, and set a fixed plate between the left elbow and the standpipe. A vertical plate is welded on the fixed plate, and a hollow bearing is welded on the vertical plate; Vertical manual joystick, the upper end of the vertical manual joystick is equipped with a manual steering handle, the vertical manual joystick is inserted through the hollow bearing, and its lower end is connected with the vertical shaft of the front steering wheel, turning the manual steering handle can make the front steering wheel flexible Turn left and right to control the electric wheelchair to go straight or turn left and right; there is a rear wheel installation stand plate at the lower end of the left and right main risers, and the rear wheel with the motor is fastened to the stand plate through bolts and nuts. Since the motor directly drives the rear wheel, It overcomes the disadvantage of high energy consumption in the indirect drive of worm and worm gears. This motor is a brushless DC motor with stepless speed regulation, which can drive at low speed; it is also equipped with a disc brake device. The disc brake device consists of a disc brake, hand pinch Brake handle, main steel wire, two branch wires, square-shaped conversion piece, brake lever, brake caliper and connecting plate. Disc brake includes brake pad, brake caliper and pull rod. Disc brake passes through disc brake pad The threaded thread on the end cover of the motor is tightened and installed on the side of the motor. The brake caliper and brake rod are fixed on the vertical plate through the connecting plate. The hand-pinched brake handle is installed on the right elbow. The hand-pinched brake handle is connected, and the other end is connected with the upper end of the character-shaped conversion piece. The brake lever connection of the advanced disc brake realizes the safety effect of pinching the brake handle with one hand and braking both wheels at the same time, and overcomes the disadvantage of high energy consumption of the electromagnetic brake

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