Four-wheel drive wheelchair with multifunctional rear wheels

Abstract

The invention discloses a four-wheel-drive wheelchair with multifunctional rear wheels, which has two left and right wheels, and is characterized in that the backrest of the wheelchair is connected with the connecting rod under the seat cushion of the wheelchair through a hinge, and the connecting rod is connected with the axle of the driving wheel of the wheelchair , the driving wheel shaft is fixed to the driving wheel, the second pulley, and the wheel ring, the connecting rod is fixed to the first connecting rod, the first connecting rod is connected to the second connecting rod through a hinge, and the connection between the first connecting rod and the second connecting rod Fix a self-locking gas spring, buckle a flat plate between the first connecting rods on the left and right sides, the second connecting rod is connected with the axle of the rear wheel of the wheelchair, the axle is fixed with the rear wheel and the first pulley, and the first pulley It is connected with the second pulley through a transmission belt. The multifunctional rear wheel has a simple structure and an ingenious design, and effectively solves many problems in the use of the wheelchair.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a four-wheel drive wheelchair with multifunctional rear wheels. Background technique [0002] Wheelchairs are made and used for people with limited mobility, limb injuries or disabilities, and are a relatively common type of household medical equipment. Because it can bring help and convenience to many people with inconvenient legs and feet or during the rehabilitation period of leg injuries, it is favored by consumers. [0003] However, during the use of wheelchairs, there are still many problems as follows: [0004] 1. For ordinary wheelchairs, it is very difficult for the elderly or those with weak upper body strength to push the wheelchair to walk only by the wheel ring. [0005] 2. At present, in order to prevent the wheelchair from turning backwards, more fixing devices are used to add the driving wheel close to the ground, so that some wheelchair skills used when...

AI Technical Summary

Problems solved by technology

[0004] 1. Ordinary wheelchairs are not easy for the elderly or those with weak upper body strength to push the wheelchair to walk only by the wheel ring

[0005] 2. At present, in order to prevent the wheelchair from turning backwards, more fixing devices are used to add the driving wheel close to the ground, so that some wheelchair skills used when facing obstacles that cannot be circumvented are limited

[0006] 3. The wheels of existing wheelchairs are mostly inflatable. If a tire blows out during use, the user will not be able to continue using the wheelchair

[0007] 4. There is no other place to put things in the wheelchair, and the user needs to push the wheel ring with both hands when going out, which is very inconvenient

[0008] 5. After the wheelchair user recovers, the wheelchair loses its main function, resulting in a waste of resources

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