Rotary module of wheelchair

Abstract

The invention discloses a rotary module of a wheelchair. The rotary module is used for making a seat of the wheelchair to rotate relative to a wheelchair body of the wheelchair. The rotary module comprises a rotating shaft, a rotating body, a gear, a base and a gear driving unit, the upper end of the rotating shaft is fixed to the bottom of the seat, the rotating body and the gear are arranged onthe rotating shaft, the base is arranged on the wheelchair body, and a supporting sleeve is arranged on the base; the seat is connected with the supporting sleeve in an inserted mode through the rotating shaft, the rotating body on the rotating shaft is assembled on the supporting sleeve, and the gear on the rotating shaft meshes with the gear driving unit and is rotationally connected with the wheelchair body. The seat on the wheelchair can be combined with and separated from the wheelchair body in an inserted connection mode, so that transportation and carrying of the wheelchair are facilitated. Mechanical connection and electric connection of the wheelchair and the wheelchair body are achieved through inserted connection of the wheelchair and the wheelchair body in a one-time mode; mechanical connection is rotational connection so that the driving mode of the wheelchair can be changed through rotation of the seat to adapt to different passing conditions, and the operability of the wheelchair is greatly improved; meanwhile, the overall size of the wheelchair is greatly reduced by the adoption of the base of the sectional material structure, the structure is compact, and the machining amount of wheelchair production is greatly reduced.

Description

technical field [0001] The invention relates to a wheelchair, in particular to a rotating module of a wheelchair. Background technique [0002] Electric wheelchairs are usually driven by rear wheels, and the front wheels are universal wheels. The passing performance of electric wheelchairs of this design is poor on complex road surfaces; limited by the turning radius, it is difficult for existing wheelchairs to turn around on narrow road surfaces. Wheelchairs with swivel functions can already overcome the above problems. When passing through complex roads, you only need to rotate the seat 180° to turn it into a front-wheel drive, which can enhance the passability of complex roads; when you need to turn around on narrow roads, you only need to rotate Seat can be realized, get rid of the limitation of turning radius. [0003] However, the existing wheelchair with rotating function, especially the wheelchair with rotating driving function, combines the upper seat and the vehic...

AI Technical Summary

Problems solved by technology

[0003] However, the existing wheelchair with rotating function, especially the wheelchair with rotating driving function, combines the upper seat and the vehicle body through a relatively complicated mechanical connection, and the seat and the vehicle body become an integral body and cannot Separate, unless it is mechanically disassembled, it is inconvenient to carry, for example, it is impossible to put the existing electric wheelchair (or non-folding wheelchair) into the trunk of an ordinary private car; it is also inconvenient for transportation and maintenance, for example, when transporting electric wheelchairs in batches, Because each wheelchair takes up a lot of space, it will increase the transportation cost, and it will be difficult to ensure the assembly quality and efficiency if the parts are transported to the bottom and installed; and the maintenance generally requires the removal of the seat, because the gap between the seat and the body The connection is complicated, and the assembly workload after disassembly and repair is large, which makes the maintenance efficiency low

For electric wheelchairs, in addition to the above-mentioned mechanical connection between the seat and the vehicle body is difficult to separate, there are also problems that the electrical connection is difficult to separate and the electrical signal wires are easily twisted due to the rotation of the seat.

Simultaneously rotating dynamic drive mechanism is complicated in structure and takes up a large volume, so it is difficult to make the wheelchair with multiple functions compact in structure.

In addition, the existing electric wheelchairs still lack the corresponding locking and unlocking mechanisms for automatically locking and unlocking a rotating position.

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