One-side push rod type freely steerable wheelchair

Abstract

The invention relates to a unilateral push rod type free steering type wheelchair. According to the unilateral push rod type free steering type wheelchair, a belt wheel is connected with a front wheel outer shell through a cog belt in a transmission mode, a T-shaped rod is fixed in the belt wheel, the T-shaped cross rod is inlaid in a groove at the tail end of a push rod, and the push rod penetrates through a push rod fixing outer shell, and is connected with the push rod fixing outer shell in a transmission mode to form a single hand direction control mechanism which is used for achieve the facts that the unilateral push rod type free steering type wheelchair is driven to move forward, and front wheels steer at the same time. A main shaft is fixedly connected with a large flywheel, and the large flywheel is connected with a small flywheel through a chain in a transmission mode to form a drive transmission mechanism. A reverser is connected in the push rod fixing outer shell in a rotary mode, a driving chain wheel is fixed on the main shaft, the reverser is connected with a reversing control switch arranged at the upper end of the push rod in a control mode, and the reverser is connected with the driving chain wheel in a matched mode to form a ratchet mechanism. The unilateral push rod type free steering type wheelchair can be used by a user with a sound unilateral upper limb, the push rod and direction control are integral, forward movement or back movement of the push rod is achieved through switch control, a back of the unilateral push rod type free steering type wheelchair can be put down to enable the user to rest, and the height of an armrest can be adjusted, and the like.

Description

technical field [0001] The invention relates to a wheelchair, in particular to a wheelchair used by patients with unilateral upper limb dysfunction or hemiplegia. Background technique [0002] With the aging population in our country, more and more people have limb dysfunction and need to use wheelchairs as a means of transportation. In self-propelled manual wheelchairs, most traditional wheelchairs can only be driven with both hands. However, many people with physical disabilities only have normal function of one hand, so these people cannot use these traditional manual wheelchairs. Especially in recent years, the number of stroke patients has increased significantly. Most of these patients are hemiplegic patients, and most of them only have normal function of one hand. The inability to use traditional manual wheelchairs has greatly affected the lives of these people. quality. Therefore, in recent years, some manual wheelchairs that can be driven by one side of the hand ...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problems of the existing one-sided hand-operated wheelchairs: (1) the steering cannot be turned during the hand-operated process; (2) the rotation angle of the small wheel is limited and inflexible; (3) it cannot be driven backwards, and there is a large Due to the technical problem of inconvenient use, a single-side push rod type freely steerable wheelchair is provided, which can realize forward and backward driving and direction control functions through a single-side push rod

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