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Worm transmission mechanism for wheelchair

A worm drive, wheelchair technology, applied in the direction of gear transmission, transmission, patient's chair or special transportation tools, etc., can solve problems such as arm sprains

Inactive Publication Date: 2018-02-23
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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  • Worm transmission mechanism for wheelchair
  • Worm transmission mechanism for wheelchair
  • Worm transmission mechanism for wheelchair

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specific Embodiment approach

[0044] The specific embodiment: people use the wheelchair designed by the present invention, and before use, people rotate the adjustment handle 15; the adjustment handle 15 drives the adjustment U-shaped ring 13 to rotate; the adjustment U-shaped ring 13 drives 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 threaded wheel 14 and the driving spring 6 can be controlled by adjusting the adjusting handle 15 ; thereby controlling the initial elastic performance of the driving spring 6 . 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 driving mo...

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Abstract

The invention belongs to the technical field of wheelchair driving, and particularly relates to a worm transmission mechanism for a wheelchair. The worm transmission mechanism comprises a driving motor, a driving spring and a transmission gear. According to the worm transmission mechanism, the wheelchair is used by people, people can rotate an adjusting handle before the wheelchair is used; the adjusting handle drives an adjusting U-shaped ring to rotate; the adjusting U-shaped ring is drives an adjusting threaded wheel to rotate; the adjusting threaded wheel rotates so that the adjusting threaded wheel can move along the axis of the adjusting threaded wheel; the initial elastic performance of the driving spring can be controlled by adjusting the adjusting handle, and the maximum torque which can be transmitted by the driving spring is further controlled; after people adjust the initial elastic performance of a thread, 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 disks to rotate; the two spring fixing disks drive the driving spring to rotate; the driving spring rotates todrive the transmission gear to rotate; the transmission gear drives a gear shaft to rotate; and the wheelchair can be driven to work through rotation of the gear shaft.

Description

technical field [0001] The invention belongs to the technical field of wheelchair driving, and in particular relates to a worm drive mechanism for a wheelchair. 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 a worm drive mechanism for a wheelchair 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 a worm drive mechanism for a wheelchair, which is realized by adopting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/16F16H55/22A61G5/04A61G5/10H02K7/116
CPCH02K7/1166F16H1/16F16H55/22A61G5/04A61G5/10
Inventor 朱剑
Owner CHANGSHU PINGFANG WHEELCHAIR CO LTD
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