Wheelchair

Abstract

The invention discloses a wheelchair, which comprises a main body frame, a chair back mechanism, a lifting mechanism and a belt conveying mechanism, wherein the chair back mechanism, the lifting mechanism and the belt conveying mechanism are arranged on the main body frame; the chair back mechanism comprises installation seats fixed with the main body frame; and the installation seats are symmetrically arranged on two sides of the main body frame. The wheelchair also comprises chair back rods, wherein the chair back rods are rotatably connected with the installation seats through rotary shaftsarranged on the lower ends of the chair back rods; each rotary shaft is fixedly provided with a driven gear; the main body frame is fixedly provided with self-locking motors; the output shaft of eachself-locking motor is fixedly provided with a driving gear; each driven gear and each driving gear are meshed; a belt-shaped backrest belt is tensioned between the two chair back rods; and a path onthe conveying mechanism is also provided with a scraper blade mechanism. The lifting strength of the lifting mechanism of the wheelchair is higher, the wheelchair has an extremely good self-locking function to avoid a defect of falling, and the chair back can slowly incline before conveying belt is started so as to assist a patient in lying on the conveying belt. In addition, the scraper blade mechanism is arranged so as to effectively remove dirt on the surface of the conveying belt.

Description

technical field [0001] The invention relates to a wheelchair, in particular to a wheelchair which can conveniently transport a patient from the wheelchair to the bed. Background technique [0002] At present, the wheelchair is an important tool for rehabilitation, and it is also a means of transportation for many people with leg injuries or disabilities. However, when the existing wheelchair is in use, it is difficult for the user to move from the wheelchair to the bed, and the help of an outsider is often needed to achieve the above purpose. [0003] Based on the above problems, the applicant has developed a seat with handling in the early stage, see Figure 1 to Figure 2 , which includes a main frame 1, on which a chair back 2 is arranged, the chair back 2 includes a back board 20 matched with the main frame, one end of the back board 20 is rotated, and the other end is buckled on the main frame 1 . [0004] The main frame 1 is provided with a roller connecting plate 3, ...

AI Technical Summary

Problems solved by technology

[0005] The above structure has the following defects: 1) The lifting force of the lifting mechanism is not strong, and the torque requirement for the motor is relatively high. In addition, the self-locking ability of the lifting mechanism is poor, and it is easy to happen when the roller connecting plate is not buckled on the bed. board drop problem;

[0006] 2) There is no effective means of lifting the patient's back. Before the conveyor belt is started, the patient can only lie on the conveyor belt slowly by himself;

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