Electric rehabilitation wheelchair with sit-up function

Abstract

The invention aims at providing an electrical rehabilitation wheelchair with a sit-up function. The electrical rehabilitation wheelchair comprises a wheelchair frame, driving wheels, universal wheels, drive motors and a rehabilitation mechanism, wherein the drive wheels are installed on two sides of the rear end below the wheelchair frame, the universal wheels are installed on two sides of the front end below the wheelchair, each driving wheel is connected with one drive motor, two sides of the middle part of the wheelchair frame are respectively provided with a large seat, the rehabilitation mechanism comprises a left pedal device and a right pedal device, the left pedal device comprises a fixed short rod, a long connecting rod, a rectilinear drive device, a massage bar and a footboard, one end of the fixed short rod is fixed on the wheelchair frame, the other end of the fixed short rod is hinged to a first end of the long connecting rod, one end of the rectilinear drive device is hinged to the fixed short rod, the other end of the rectilinear drive device is hinged to a second end of the long connecting rod, the massage bar is installed in the middle part of the long connecting rod, the footboard is installed on a second end of the long connecting rod, and the right pedal device and the left pedal device are symmetric to each other in the lateral direction. By adopting the electric rehabilitation wheelchair, elevation and longitudinal horizontal movement can be simultaneously realized.

Description

technical field [0001] The invention relates to a rehabilitation device, specifically a rehabilitation wheelchair. Background technique [0002] With the process of population aging and the decline of human physiological functions, there are more and more elderly people with limited mobility. Most elderly people do not completely lose the ability to walk, but their standing ability is severely weakened, causing them to be trapped in a bed or wheelchair for a long time, which will lead to poor blood circulation in the legs, muscle atrophy and necrosis, resulting in the possibility of permanent disability in the legs . At present, the development of electric wheelchairs has been relatively mature, and the elderly can use wheelchairs to travel, but most electric wheelchairs do not have the function of assisting sitting up and assisting rehabilitation, so that the elderly cannot sit up and exercise independently. [0003] At present, the relevant patents at home and abroad mai...

AI Technical Summary

Problems solved by technology

Most elderly people do not completely lose the ability to walk, but their standing ability is severely weakened, causing them to be trapped in a bed or wheelchair for a long time, which will lead to poor blood circulation in the legs, muscle atrophy and necrosis, resulting in the possibility of permanent disability in the legs

At present, the development of electric wheelchairs has been relatively mature. The elderly can use wheelchairs to travel, but most electric wheelchairs do not have the function of assisting sitting up and assisting rehabilitation, making it impossible for the elderly to sit up and exercise independently.

[0003] At present, the relevant patents at home and abroad mainly include the technical solutions proposed by the patent titled "Electric Wheelchair with Liftable Seat" (Patent No. 03246351.0) and "A Lifting Electric Wheelchair" (Patent No. 201120429383.6) The seat can only be raised and lowered in the vertical direction, and the center of gravity of the human body is not only rising but also moving in the horizontal direction when the human body stands up. state

The patent "electric walking aid wheelchair with a sitting mechanism" (patent number 201010148940.7) uses a drive motor to drive three steel wire ropes to cooperate with the wheel and three sets of linear slide rails to realize the function of sitting up, which increases the difficulty of adjustment and manufacturing costs; and its The motor-driven crank-rocker mechanism is used to realize the power-assist function of the legs, and the structure is relatively complicated; and the center of gravity of the human body changes all the time during the sitting-up process, and changes both in the horizontal direction and the vertical direction, while the seat in the patent The chair mainly changes in the vertical front-back direction, and there is no horizontal movement change in the left-right direction. Therefore, the patented product cannot make the patient stand stably according to the center of gravity of the human body during use; and when the patent is in use, the lifting mechanism Drive the seat to move up, and at the same time, the human body also moves upwards. If the user's legs are short, or the feet are not stretched out to touch the ground in time, problems such as the user's feet and the ground will appear, which further increases the user's safety. Difficulty of sitting and standing

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