Folding self-lock structure, folding self-lock frame, folding wheelchair and method for same

Abstract

The invention discloses a folding self-lock structure, a folding self-lock frame, a folding wheelchair and a method for the same. The folding self-lock structure comprises a bottom plate, a plug pin assembly and a locking assembly. The plug pin assembly and the bottom plate can axially rotate, and the plug pin assembly comprises a plug pin slider; the locking assembly and the bottom plate can axially rotate, the locking assembly comprises a stopping tip, the locking assembly and the plug pin assembly at relative positions can move, the plug pin assembly can be fixed by the aid of the locking assembly in folding states, the locking assembly and the plug pin assembly can move in a resettable manner, and accordingly self-lock operation can be carried out by the folding self-lock structure from unfolded states to folded states.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a folding self-locking structure, a folding self-locking frame, a folding wheelchair and a folding self-locking method thereof. Background technique [0002] Folding structures are very common applications in the mechanical field. The application of folding structures can save space when not in use, and does not affect the use status. Therefore, the folding structure has applications in many fields. One of the application fields is in the field of medical devices. Take wheelchairs as an example. At present, many folding wheelchairs on the market are simply folded and have a large volume after folding. [0003] In the process of using, the following problems will arise: [0004] First, when folding, some structures are exposed, but they are not completely folded. For example, the more common ones in wheelchairs are footrests, armrests and back cushions, all of which need to be stored pro...

AI Technical Summary

Problems solved by technology

Therefore, the safety of the locking device is very important. The safety of the existing wheelchair needs to be improved in the locking device itself, and the existing locking devices require manual locking by the operator.

[0006] Third, the folding structure and steps of the existing folding structure are relatively complicated. For the user, after folding, the folding structure needs to be locked, so it is troublesome

[0007] For example, wheelchairs and other medical and health care devices, safety is very important. When folded and opened, the first thing to do is to maintain stability and safety, but some users may forget to lock it. In this way, the safety of the entire wheelchair is difficult to guarantee

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