Folding Portable Lift Table

Abstract

The invention discloses a foldable portable lifting platform, which comprises a foldable supporting frame, an upper end supporting seat, a lower end supporting seat and a platform device, wherein the upper end supporting seat and the lower end supporting seat are respectively connected to the upper end and the lower end of the foldable supporting frame; the platform device is arranged on the upper end supporting seat; the foldable supporting frame comprises two horizontal direction foldable supporting frames and a vertical direction foldable supporting frame; the two horizontal direction foldable supporting frames are respectively connected with the upper end supporting seat and the lower end supporting seat in a sliding way; and two ends of the vertical direction foldable supporting frame are respectively connected with the upper end supporting frame and the lower end supporting frame in a sliding way. A flexible function is realized by a connecting rod structure, and four box mechanisms are connected by connecting rods to realize the flexible function; and a function of placing objects is realized by the platform device and a clamp above. Since the lifting platform can be compressed in the vertical direction and the horizontal direction, after being compacted and folded, the occupied space size of the lifting platform is smaller than the occupied space size of the existing lifting platform, and the lifting platform can be more conveniently carried.

Description

technical field [0001] The invention relates to a lifting platform in the technical field of machinery, in particular to a foldable portable lifting platform mainly composed of a link mechanism. Background technique [0002] The movement forms of linkage mechanism components are various, such as rotation, swing, movement and plane or space complex movement, which can be used to realize known laws of motion and known trajectories. In addition, the low surface contact structure makes the linkage mechanism have the following advantages: the pressure per unit area of ​​the kinematic pair is small, and the surface contact is easy to lubricate, so the wear is reduced; it is easy to manufacture and easy to obtain high precision; the two components The contact between them is maintained by their own geometric closure, unlike cam mechanisms, which sometimes need to be closed by springs and other forces to maintain contact. Therefore, the planar linkage mechanism is widely used in va...

AI Technical Summary

Problems solved by technology

The disadvantages of the planar linkage mechanism are: in general, it can only approximate the given motion law or trajectory, and the design is more complicated; when the given motion requirements are more or more complex, the number of components and kinematic pairs required The number is often large, which makes the structure of the mechanism complex and reduces the working efficiency. Not only the possibility of self-locking increases, but also the sensitivity of the movement law of the mechanism to manufacturing and installation errors increases; the components that perform complex motion and reciprocating motion in the mechanism The generated inertial force is difficult to balance, which will cause large vibration and dynamic load at high speed, so the connecting rod mechanism is often used in low speed occasions

However, only in the single direction of the vertical direction, it can not achieve the purpose of reducing the occupied space and making it easy to carry.

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