Keel structure with variable bending rigidity

A bending stiffness and keel technology, which is applied in the field of keel structures for medical devices, can solve the problems of small stiffness variation range, poor applicability, and slow response speed, and achieve the effects of fast response speed, automatic control, and increased flexibility

Pending Publication Date: 2022-01-07
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a keel structure with variable bending stiffness in order to solve the problems of slow response speed, small stiffness variation range and poor applicability when the existing variable stiffness technology is applied to the posture correction belt

Method used

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  • Keel structure with variable bending rigidity
  • Keel structure with variable bending rigidity
  • Keel structure with variable bending rigidity

Examples

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Embodiment Construction

[0025] A keel structure with variable bending stiffness, as attached figure 1 , attached figure 2 , attached image 3 As shown; include the first keel 1 and the second keel 2 which are arranged in parallel and fixedly connected; the upper part of the second keel 2 is worn with two pins 3 which fit with the gap, and the top part of each pin 3 is movable through the first In the through hole of the keel 1 (each pin corresponds to a through hole, and the inner diameter of the through hole is greater than the outer diameter of the pin head), the top of each through hole of the first keel 1 is provided with two upper limit mechanisms that prevent the pin 3 from ejecting, The bottom of the through hole is provided with two lower limit mechanisms to prevent the pins 3 from detaching; the side of each pin 3 is provided with a responsive driving mechanism for driving the pins 3 to move up and down.

[0026] The present invention drives the pin 3 to move up and down through the respo...

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PUM

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Abstract

The invention particularly relates to a keel structure with variable bending rigidity. The problems that when an existing variable rigidity technology is applied to a posture correcting belt, the response speed is low, the rigidity change range is small, and the applicability is poor are solved. The keel structure with the variable bending rigidity comprises a first keel and a second keel which are arranged in parallel and fixedly connected. The keel structure is characterized in that N pins in clearance fit with the second keel penetrate through the upper portion of the second keel, the top end of each pin movably penetrates through the first keel, N upper limiting mechanisms for preventing the pins from being ejected out are arranged at the top of the first keel, and N lower limiting mechanisms for preventing the pins from being disengaged are arranged at the bottom of the first keel; a response driving mechanism for driving the pins to move up and down is arranged beside each pin. The keel structure is reasonable and reliable in structural design, the inserting depth of the pins on the second keel is adjusted through the response driving mechanisms, then the shaking amplitude of the pins is adjusted, and then the function of changing the bending rigidity is achieved.

Description

technical field [0001] The invention relates to a keel structure for medical equipment, in particular to a keel structure with variable bending stiffness. Background technique [0002] Most of the existing variable stiffness technologies are realized by improving material properties, electrorheological technology, and magnetorheological technology. Among them, materials with variable stiffness include shape memory alloys and piezoelectric ceramics. [0003] However, practice has shown that the existing variable stiffness technology has the following problems when applied to posture correction belts: first, shape memory alloys realize stiffness changes through phase transitions, and when used in posture correction belts, there are discontinuous stiffness changes and slow response speeds. The second is that piezoelectric ceramics realize the continuous change of stiffness through the piezoelectric effect, but there is a problem that the range of stiffness change is small and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F5/02A61B5/389A61B5/00
CPCA61F5/022A61B5/389A61B5/4836A61B5/6802
Inventor 刘春生程沛雯陈维毅
Owner TAIYUAN UNIV OF TECH
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