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
CN101270772AInactive Publication Date: 2008-09-24BEIJING JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Publication Date
2008-09-24
Estimated Expiration
Not applicable · inactive patent

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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.
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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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