Title:
DRIVE ASSEMBLY AND LIFTING COLUMN
Document Type and Number:
WIPO Patent Application WO/2018/130127
Kind Code:
A1
Abstract:
A drive assembly, comprising a hollow spindle (1), of which the outer wall is provided with external threads; a drive screw (2), located within the hollow spindle (1); a first drive nut (3), fitting the drive screw (2) by threads, the hollow spindle (1) being axially located to the first drive nut (3) in a rotatable way, a lock structure (7) for restricting the rotation of the first drive nut (3) being provided at the outside of the first drive nut (3); a second drive nut (4), fitting the hollow spindle (1) by threads; a sleeve (5), being fitted around the outside of the hollow spindle (1), the second drive nut (4) being fixedly connected to the sleeve (5); and a guide tube (6), being limited in the sleeve (5) in a rotatable way.
Inventors:
HU RENCHANG (CN)
LU XIAOJIAN (CN)
LI WEIQIANG (CN)
LU XIAOJIAN (CN)
LI WEIQIANG (CN)
Application Number:
PCT/CN2018/071763
Publication Date:
July 19, 2018
Filing Date:
January 08, 2018
Export Citation:
Assignee:
ZHEJIANG JIECANG LINEAR MOTION TECH CO LTD (CN)
International Classes:
F16H25/20; B66F13/00; F16B7/14
Foreign References:
| CN106641148A | 2017-05-10 | |||
| CN206571923U | 2017-10-20 | |||
| CN2268019Y | 1997-11-19 | |||
| CN101307817A | 2008-11-19 | |||
| CN104595307A | 2015-05-06 | |||
| EP2522619A1 | 2012-11-14 |
Other References:
See also references of EP 3575634A4
Attorney, Agent or Firm:
HANGZHOU HUADING INTELLECTUAL PROPERTY LAW FIRM (CN)
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