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Mechanical bionic hand and thumb module thereof

A thumb and bionic hand technology, applied in the field of medical rehabilitation, can solve the problems of slow and insensitive movement, poor user experience and limited service life of flexible mechanisms, etc.

Pending Publication Date: 2019-10-18
SHANGHAI OYMOTION INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing bionic hand products have rich design concepts. Flexible mechanisms and rigid mechanisms can be seen everywhere in the market, with obvious advantages and disadvantages; The rigid link is a bionic hand with a movement mechanism. Problems such as large mass, slow and insensitive movement, and poor user experience are also limitations encountered in the promotion of this type of product in the market.

Method used

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  • Mechanical bionic hand and thumb module thereof
  • Mechanical bionic hand and thumb module thereof
  • Mechanical bionic hand and thumb module thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0072] see Figure 1 to Figure 8 , the present invention discloses a thumb module of a mechanical bionic hand, comprising a thumb mechanism 4 , a thumb drive unit 46 , and a thumb planetary gear transmission mechanism 5 .

[0073] Described thumb mechanism 4 comprises thumb far knuckle 41, thumb far joint 42, thumb rotating motor base middle part 43, thumb rotating motor base side plate 44, thumb near knuckle shell 45, motor fixing belt 47, First bevel gear 48, transmission plate 49.

[0074] Described thumb mechanism 4 comprises differential coupling mechanism, and described differential coupling mechanism is the mechanism that makes thumb bend, and refers to thumb mechanism 4 except thumb far knuckle 41, most parts of fixing band 47, including thumb Far joint 42, thumb rotating motor base middle part 43, thumb proximal knuckle shell 45, thumb rotating motor 46, first bevel gear 48, transmission plate 49.

[0075] Described thumb drive unit is fixed on the thumb base middle...

Embodiment 2

[0085] see figure 1 , the invention discloses a mechanical bionic hand. The so-called underactuation means that the number of independent drivers in the system is less than the number of degrees of freedom. The mechanical bionic hand includes a wrist and a manipulator part; the manipulator part includes two first modular fingers, two first modular finger drive mechanisms, a second modular finger, a second modular finger drive mechanism, a thumb Mechanism, thumb planetary gear transmission mechanism.

[0086] The first modular finger 1 includes a modular finger, and the second modular finger includes two modular fingers; the two first modular fingers are used for bionic index finger and middle finger respectively, and the second modular finger is used for Bionic ring finger and little finger, the thumb mechanism is used for bionic thumb.

[0087] Each first modular finger driving mechanism is connected to the corresponding first modular finger to drive the action of the first...

Embodiment 3

[0104] A thumb module of a mechanical bionic hand comprises a thumb mechanism, a thumb drive unit, and an integral rotation transmission mechanism. The thumb mechanism 4 includes a thumb distal knuckle, a thumb distal joint, and a thumb proximal knuckle shell, and the thumb distal knuckle and the thumb proximal knuckle shell are connected through the thumb distal joint.

[0105] The thumb mechanism includes a far knuckle rotation and bending transmission mechanism (differential drive mechanism); the thumb drive unit is connected to the thumb far joint through the far knuckle rotation and bending transmission mechanism, and can drive the rotation of the thumb far knuckle , causing the thumb to flex.

[0106] The thumb drive unit is connected to the thumb proximal knuckle shell 45 through the integral rotation transmission mechanism, and drives the thumb mechanism 4 to rotate as a whole.

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Abstract

The invention discloses a mechanical bionic hand and a thumb module thereof. The thumb module comprises a thumb mechanism, a thumb driving unit and a whole rotating transmission mechanism; the thumb mechanism comprises a thumb far knuckle, a thumb far joint and a thumb near knuckle shell, and the thumb far knuckle and the thumb near knuckle shell are connected through the thumb far joint; the thumb mechanism comprises a far knuckle rotating bending transmission mechanism, and the thumb driving unit is connected with a thumb far joint through the far knuckle rotating bending transmission mechanism, so that the thumb is bent; and the thumb driving unit is connected with the thumb near knuckle shell through the integral rotating transmission mechanism so as to drive the thumb mechanism to rotate integrally. The mechanical bionic hand and the thumb module thereof are light, handy and good in experience feeling; and a differential coupling mechanism is adopted by the thumb structure, so that the weight of a traditional bionic mechanical arm is greatly reduced, the heavy characteristic of the rigid mechanical arm is avoided, and better experience is brought to a user.

Description

technical field [0001] The invention belongs to the technical field of medical rehabilitation, and relates to a bionic hand, in particular to a mechanical bionic hand. Background technique [0002] Bionic hand, as the main means to solve patients' self-care after amputation, is still a relatively new and popular product. There are various types of products on the market, and there are no clear requirements and standards for such products in the industry. [0003] Existing bionic hand products have rich design concepts. Flexible mechanisms and rigid mechanisms can be seen everywhere in the market, with obvious advantages and disadvantages; The rigid link is a bionic hand with a movement mechanism. Problems such as large mass, slow and insensitive movement, and poor user experience are also limitations encountered in the promotion of this type of product in the market. [0004] In view of this, there is an urgent need to design a bionic hand structure so as to overcome the ab...

Claims

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Application Information

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IPC IPC(8): B25J15/00B25J15/02
CPCB25J15/0009B25J15/0213
Inventor 张洪波周磊刘俊凯张旭东刘珂嘉
Owner SHANGHAI OYMOTION INFORMATION TECH
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