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Zigzag rod space telescopic mechanism

A telescoping mechanism and rod technology, which is applied in the field of zigzag rod space telescopic mechanism, can solve the problems of high manufacturing process requirements, limited telescopic range, poor lateral force, etc., and achieve simple manufacturing process, large telescopic range, and distribution uniform effect

Inactive Publication Date: 2008-03-12
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing telescopic mechanisms, such as plunger cylinders, slide rail guide grooves, etc., generally have complex structures and high manufacturing process requirements, but the telescopic range is very limited.
Existing planar parallelogram connecting rod telescopic mechanisms such as sliding doors and windows have poor lateral force and limited application range

Method used

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  • Zigzag rod space telescopic mechanism
  • Zigzag rod space telescopic mechanism
  • Zigzag rod space telescopic mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: A space telescopic mechanism in which the length of the rod is greater than the side length of the intermediate frame.

[0034] As shown in Figures 1, 5 and 6: the length of the bar is greater than the side length of the intermediate frame, which is beneficial to increase the range of extension. If the point of force is at the end of the mechanism, the mechanism will stretch in one direction. Using this point, it can be made into a folding support mechanism or an arm of a manipulator. In addition, it can also be realized by driving the intermediate frame near the end of the mechanism. E.g:

[0035] 1. Outriggers of telescopic and folding tables and stools.

[0036] The top of the mechanism is connected with the clamping plate fixed on the bottom surface of the desktop. When each apex moves inward synchronously along the chute of the clamping plate, the mechanism is extended, adjusted to the required height, and the clamping point is fixed. The folding o...

Embodiment 2

[0041] Embodiment 2: A space telescopic mechanism in which the length of the rod is smaller than the side length of the intermediate frame.

[0042] The space telescopic mechanism whose rod length is less than the side length of the intermediate frame has the characteristic that the cross-sectional area remains constant at any time. The length of the bar is smaller than the side length of the intermediate frame, so that even in the limit position of contraction, the two ends of the bar will not exceed the range of the intermediate frame, and no additional cross-sectional space will be added. Utilizing this property, a space stretching mechanism with a constant cross section can be made.

[0043] Example: retractable wardrobe

[0044]The popular feature of the simple wardrobe with assembly rods on the market is that after the wardrobe rack is spliced ​​first, then a cloth cover is put on. And the feature of applying the retractable wardrobe of the present invention is that it...

Embodiment 3

[0045] Embodiment 3: The parallel mechanism of the space stretching mechanism.

[0046] The space telescopic mechanism can be combined into a telescopic mechanism with a larger cross-section through parallel connection in different ways. For example, three intermediate frames are triangular space telescopic mechanisms that can be assembled into a large triangular space telescopic mechanism (as shown in Figures 13 and 14). The three intermediate frames are quadrilateral space telescopic mechanisms that can be assembled into a zigzag space telescopic mechanism.

[0047] Taking the large triangle space telescopic mechanism as an example, in order to avoid interference between the rods, the length of the rods should be smaller than the side length of the intermediate frame. The mechanism formed in parallel has the characteristics of high strength and rigidity, and is more stable when it plays a supporting role.

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Abstract

The invention relates to a zigzag member space telescoping mechanism which comprises a member and a middle bracket and is formed by the series connection of a plurality of layers of same component units. When the mechanism extends or contracts, the members are mutually staggered, which can overcome the interference problem. The arrangement mode of the member and the middle bracket of the mechanism can greatly reduce the occupancy space, which can make the mechanism compact while keeping a large telescopic ratio. When the member length is less than the side length of the middle bracket, the cross section of the mechanism can always remain unchanged. Due to the space symmetry of the mechanism itself, the mechanism has the comparatively uniform distribution of the bearing capacity of the different directions in the space. The mechanism has the advantages of the less material consumption, the large telescopic amplitude, the good stress performance, the strong stability, the wide application range and the simple manufacturing process.

Description

technical field [0001] The invention relates to mechanical technology, in particular to a zigzag rod space telescopic mechanism. Background technique [0002] In the installation and maintenance of some equipment or some professional special work, a device that can be stretched in length, or a mechanism that can be lifted in height is required. Existing telescopic mechanisms, such as plunger oil cylinders, slide rail guide groove pairs, etc., generally have complex structures and high manufacturing process requirements, but the telescopic range is very limited. Existing planar parallelogram connecting rod telescopic mechanisms, such as sliding doors and windows, have poor lateral force and limited application range. Contents of the invention [0003] The object of the present invention is to provide a zigzag rod space telescopic mechanism, which is a new type of three-dimensional simple integral telescopic mechanism, which is formed by connecting several zigzag connecting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B7/10A47B3/02A47C7/50E04G25/04F16M11/00B25J15/00A47B43/00
Inventor 姚燕安俞笔奇查建中
Owner BEIJING JIAOTONG UNIV
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