Title:
LOW MOUNTING DISTANCE RAISING COLUMN
Document Type and Number:
WIPO Patent Application WO/2021/110002
Kind Code:
A1
Abstract:
A low mounting distance raising column, comprising a driving apparatus (100), a lifting tube (200), and a transmission assembly. The lifting tube (200) comprises a first tube (210), a second tube (220), a third tube (230), a fourth tube (240) and a fifth tube (250), a lower end of the fifth tube (250) being fixed on the driving apparatus (100). The transmission assembly comprises a first ball screw (310), a second ball screw (320), a third ball screw (330), and a fourth ball screw (340). An output end of the driving apparatus (100) cooperates transmissively with the first ball screw (310) and is able to drive the first ball screw (310) to rotate. A first nut (321) transmissively connected to the screw thread of the first ball screw (310) is provided on a lower end of the second ball screw (320), a second nut (331) transmissively connected to the screw thread of the second ball screw (320) is provided on a lower end of the third ball screw (330), a third nut (341) transmissively connected to the screw thread of the third ball screw (330) is provided on a lower end of the fourth ball screw (340), and a fourth nut (211) transmissively connected to the screw thread of the fourth ball screw (340) is provided on a lower end of the first tube (210). Adjacent ball screws are transmissively connected by means of the screw threads, and the nuts are positioned between two adjacent ball screws, causing the transmission assembly to be more compact in both the axial and radial directions, and thus allowing for low mounting distances and a large distance of travel in the raising column.
Inventors:
HU RENCHANG (CN)
LU XIAOJIAN (CN)
PAN JIAN (CN)
LU XIAOJIAN (CN)
PAN JIAN (CN)
Application Number:
PCT/CN2020/133177
Publication Date:
June 10, 2021
Filing Date:
December 01, 2020
Export Citation:
Assignee:
ZHEJIANG JIECANG LINEAR MOTION TECH CO LTD (CN)
International Classes:
B66F3/10
Foreign References:
| CN110980572A | 2020-04-10 | |||
| CN211712510U | 2020-10-20 | |||
| CN109812556A | 2019-05-28 | |||
| CN209621790U | 2019-11-12 | |||
| CN206142727U | 2017-05-03 | |||
| CN208457140U | 2019-02-01 | |||
| US20180172062A1 | 2018-06-21 |
Other References:
See also references of EP 4046957A4
Attorney, Agent or Firm:
HANGZHOU HUADING INTELLECTUAL PROPERTY LAW FIRM (CN)
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