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Planar flexible tri-steady mechanism

A tri-stable, flexible technology, applied in the direction of telephone structure, contact drive mechanism, mechanical equipment, etc., can solve problems such as incompatibility

Inactive Publication Date: 2010-07-14
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, the flexible mechanism disclosed above is not suitable for the proposed application

Method used

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  • Planar flexible tri-steady mechanism
  • Planar flexible tri-steady mechanism
  • Planar flexible tri-steady mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The working state of embodiment 1 can be combined figure 1 , figure 2 with image 3 Let's explain together.

[0023] When the slide block 8 moves to the left from the first steady-state equilibrium position (the middle position of the guide rail 3) along the slide rail 3, the slide block 8 will jump to the second steady-state position ( See figure 2 , this position is a local minimum point of the elastic potential energy stored in the mechanism), and the mechanism can remain in this stable position without applying external force; if the slider 8 is moved to the right from the first stable equilibrium position, the mechanism will jump to another steady-state equilibrium position ( image 3 ).

[0024] Figure 4 It is another embodiment structure, and its linear bistable flexible mechanism 2 adopts a bistable flexible mechanism disclosed in US Patent No. 7126446B2. The bistable flexible mechanism is axially connected with the upper end of the connecting rod 5 th...

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PUM

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Abstract

The invention relates to a flexible multistable mechanism in the fields of switches, valves, relays and etc., in particular to a plane flexible tristable mechanism which is characterized by comprising at lease a frame (1) on which a bi-stable mechanism (2) that can provide the movement vertical to the movement direction of a sliding block is connected; one end of a connecting rod (5) is connectedwith the bi-stable mechanism (2) while the other end is connected with the sliding block (8); the sliding block (8) can freely slide in a slide rail (3); when the sliding block (8) moves in a guide rail from the middle position of the guide rail to the left side or right side, the connecting rod (5) pulls the bi-stable mechanism (2) to move, after passing through an equilibrium position with an unsteady state, a second position with a steady state is jumped to, while the second position is a position with the steady state composed of a local minimum value point of elastic potential energy stored in the mechanism, and the sliding block (8) can stably rest on the position with the steady state at the left side or the right side. The plane flexible tristable mechanism of the invention has small amount of parts, simple structure, simple and easy assembly, low cost and symmetrical structure.

Description

technical field [0001] The invention relates to a flexible multi-stable mechanism in the fields of switches, valves, relays, etc., in particular to a planar flexible tri-stable mechanism. Background technique [0002] US Patents (Patent Nos. 6215081B1, 7126446B2 and 7075209B2) disclose a flexible mechanism with only two states of "on" and "off", realizing the control and conversion of the two states. In many applications, it is necessary to use a mechanism to achieve more stable states, such as the control and switching of three stable states. Examples in this regard are three-way valves, two-way optical switches, etc. It is obvious that the flexible mechanism disclosed above is not suitable for the proposed application. [0003] To this end, in 2007, Pendleton and Jensen published a study on a "rotary" tristable flexible mechanism based on a symmetrical Grashof four-bar mechanism at the IFToMM conference. Contents of the invention [0004] The object of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/00H01H3/46H04M1/02H01H1/00B81B3/00
Inventor 陈贵敏韩琪贾建援
Owner XIDIAN UNIV