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Spacing telescoping mechanism using inverse parallelogram

A technology of anti-parallelogram and telescopic mechanism, which is applied in the connection of rods, connecting components, mechanical equipment, etc., can solve the problems of high manufacturing process requirements, limited expansion range, and small application range, and achieve simple manufacturing process and large expansion range , the effect of simple design structure

Inactive Publication Date: 2008-09-24
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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  • Spacing telescoping mechanism using inverse parallelogram
  • Spacing telescoping mechanism using inverse parallelogram
  • Spacing telescoping mechanism using inverse parallelogram

Examples

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Embodiment Construction

[0025] The present invention will be further described in conjunction with accompanying drawings.

[0026] The space telescopic mechanism utilizing the antiparallelogram is composed of multiple component units stacked in series, and each component unit includes upper and lower layers of intermediate frames. Figure 9 It is a schematic diagram of a space expansion and contraction mechanism using antiparallelogram formed by connecting two component units in series.

[0027] The first type of module unit, see figure 1 :

[0028] The upper intermediate frame is composed of three intermediate frame rods 6 connected end to end with pins, and each connected with the first rod 1 at the end and end joints, see figure 1 .

[0029] The lower intermediate frame is composed of three intermediate frame rods 6 connected end to end with pins, and connected with the third rod 3 at the end and end joints, see figure 1 .

[0030] A hole is respectively established at both ends of the middle...

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PUM

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Abstract

The invention relates to a spatial expansion mechanism utilizing an inverse-parallelogram. The mechanism is composed of a plurality of component units which are superimposed in series. Every component unit is composed of a middle frame, a first bar (1) which is connected at the conjunction of the head and the tail of an upper middle side bar (6) and a third bar (3) which is connected at the conjunction of the head and the tail of the lower middle side bar (6). An upper layer and a lower layer are connected through a middle frame connecting bar (4) and a second bar (2). The component units are connected through a nit connector (5) which is connected with one end of the third bar. The expansion of the mechanism is realized through the rotation of bar parts or the movement of the middle frame. The design is provided with simple structure and reaches the large contraction ratio through a small inverse-parallelogram. Due to the spatial symmetry of the mechanism, the bearing capacities of different directions in the space can be uniformly distributed. The whole mechanism has the characteristics of less used material, large expansion amplitude, good for bearing performance, strong stability, wide application range, simple manufacturing process, etc.

Description

technical field [0001] The invention relates to a space expansion and contraction mechanism utilizing an antiparallelogram. It is suitable for engineering support, lifting platform, manipulator clamping device, legs of telescopic and folding table and stool appliances, etc. 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. [0003] With the rapid development of the aerospace industry, the functions of satellites and detectors are becomi...

Claims

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Application Information

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IPC IPC(8): F16B7/10
Inventor 姚燕安俞笔奇查建中
Owner BEIJING JIAOTONG UNIV
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