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Adjustable worm transmission mechanism for wheelchair

A worm drive, wheelchair technology, applied in the direction of controlling mechanical energy, electromechanical devices, electric components, etc., can solve problems such as arm sprains

Pending Publication Date: 2017-12-22
CHANGSHU PINGFANG WHEELCHAIR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the use of the currently used wheelchair, it is difficult for people to turn it off after turning on the drive motor switch due to wrong operation; and the arm may be sprained due to people's subconscious actions; this has brought a lot of inconvenience to the user; so the design A wheelchair transmission mechanism that can have enough time to close or adjust when people turn on the drive motor switch due to a wrong operation through automatic adjustment is very necessary

Method used

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  • Adjustable worm transmission mechanism for wheelchair
  • Adjustable worm transmission mechanism for wheelchair
  • Adjustable worm transmission mechanism for wheelchair

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specific Embodiment approach

[0040] The specific implementation method: people use the wheelchair designed by the present invention, and people control and adjust the motor 15 before use; drive the adjustment U-shaped ring 13 to rotate by the adjustment motor 15; adjust the U-shaped ring 13 to drive the adjustment screw wheel 14 to rotate; The motor 1 is in a stopped state; that is, the inner gear ring 9 is in a static state; the inner gear ring 9 cooperates with the external thread on the adjusting threaded wheel 14; so when the adjusting threaded wheel 14 rotates, the adjusting threaded wheel 14 will be adjusted The axis moves, that is, the relative position of the adjusting screw wheel 14 and the driving spring 6 can be controlled by controlling the adjusting motor 15 ; thus the initial elastic performance of the driving spring 6 can be controlled. Then control the maximum torque that the driving spring 6 can transmit; when people adjust the initial elastic performance of the screw thread; control the d...

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Abstract

The invention belongs to the technical field of wheelchair driving, and especially relates to an adjustable worm transmission mechanism for a wheelchair. The adjustable worm transmission mechanism comprises a driving motor, a driving spring and a transmission gear. When the wheelchair is used, an adjusting motor is controlled before the wheelchair is used; an adjusting U-shaped ring is driven by the adjusting motor to rotate; an adjusting thread wheel is driven by the adjusting U-shaped ring to rotate; and the adjusting thread wheel rotates so that the adjusting thread wheel can move along an adjusting thread wheel axis, namely initial elastic property of the driving spring can be controlled by the adjusting motor. Then the maximum torque which can be transmitted by the driving spring is controlled. When the initial elastic property of the thread is adjusted, the driving motor is controlled to start to work; the driving motor drives a transmission shaft to rotate; the transmission shaft drives two spring fixing discs to rotate; the two spring fixing discs drive the driving spring to rotate; the driving spring rotates and drives the transmission gear to rotate; the transmission gear drives a gear shaft to rotate; and the gear shaft rotates and drives the wheelchair to work.

Description

technical field [0001] The invention belongs to the technical field of wheelchair driving, and in particular relates to an adjustable worm drive mechanism for wheelchairs. Background technique [0002] During the use of the currently used wheelchair, it is difficult for people to turn it off after turning on the drive motor switch due to wrong operation; and the arm may be sprained due to people's subconscious actions; this has brought a lot of inconvenience to the user; so the design A wheelchair transmission mechanism that can have enough time to close or adjust when people turn on the drive motor switch due to a wrong operation through automatic adjustment is very necessary. [0003] The present invention designs an adjustable worm drive mechanism for wheelchairs to solve the above problems. Contents of the invention [0004] In order to solve the above-mentioned defects in the prior art, the present invention discloses an adjustable worm drive mechanism for wheelchair...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/10H02K7/116
CPCH02K7/1166A61G5/10A61G2203/70
Inventor 朱剑
Owner CHANGSHU PINGFANG WHEELCHAIR CO LTD
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