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Lifting stand column

A technology of lifting columns and screw rods, which is applied to lifting frames, lifting devices, tables with variable table heights, etc., can solve the problems of low transmission efficiency and achieve the effect of compact and simple structure

Pending Publication Date: 2018-10-16
ZHEJIANG JIECHANG LINEAR MOTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, by setting the two screw rods together, the screw threads of the two screw rods have the same direction of rotation, the first screw rod is driven to rotate through the driving mechanism, and the second screw rod is driven to rotate by the first screw rod, and then As the number of transmission stages increases, the transmission efficiency is low

Method used

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", "vertical", "horizontal", " Words such as "top", "bottom", etc. indicating orientation or positional relationship are only based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device / element must have a specific orientation or are constructed and operative in a particular orientation and therefore are not to be construed as limiting the invention.

[0034] Such as Figures 1 to 5As shown, the present invention provides a lifting column, comprising an inner tube 1, a middle tube 2, an outer tube 3, a first screw mandrel 4, a second screw mandrel 5 and a dri...

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PUM

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Abstract

The invention discloses a lifting stand column. The lifting stand column comprises an inner pipe, a middle pipe, an outer pipe, a first screw rod, a second screw rod and a driving mechanism; the innerpipe is arranged in the middle pipe in a sleeved mode and can move in the axial direction of the middle pipe in a reciprocating mode, the outer pipe is arranged outside the middle pipe in a sleeved mode and can move in the axial direction of the middle pipe in a reciprocating mode, a middle plate is arranged at the bottom end of the middle pipe, and the driving mechanism is arranged on the middleplate; the first screw rod is fixedly connected to the inner pipe, the second screw rod is fixedly connected to the outer pipe, the first screw rod is in threaded transmission connection with a firstoutput nut, the second screw rod is in threaded transmission connection with a second output nut, and the driving mechanism drives the first output nut and the second output nut rotate to enable thatthe first screw rod and the second screw rod to drive the inner pipe and the outer pipe to move in the axial direction of the middle pipe respectively; and the first output nut and the second outputnut work independently, so that the transmission stages of the first screw rod and the second screw rod are the same, and therefore the problem that the transmission efficiency is reduced due to the increase of the transmission stage is avoided.

Description

technical field [0001] The invention relates to the technical field of lifting devices, in particular to a lifting column. Background technique [0002] As a lifting device, the lifting column is widely used in various lifting platforms, such as lifting tables, lifting chairs, and liftable tatami mats. The current common lifting column generally includes an inner tube, a middle tube and an outer tube nested with each other. The driving mechanism arranged on the lifting column drives the inner tube and the outer tube to reciprocate and slide relative to the middle tube, thereby realizing the lifting function. [0003] In the prior art, by setting the two screw rods together, the screw threads of the two screw rods have the same direction of rotation, the first screw rod is driven to rotate through the driving mechanism, and the second screw rod is driven to rotate by the first screw rod, and then As the number of transmission stages increases, the transmission efficiency is ...

Claims

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Application Information

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IPC IPC(8): F16H37/12B66F7/14A47B9/20
CPCA47B9/20F16H37/124B66F7/14
Inventor 胡仁昌陆小健裘凯锋王林马勇
Owner ZHEJIANG JIECHANG LINEAR MOTION TECH
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