Title:
TRANSMISSION ASSEMBLY OF LIFTING COLUMN, AND LIFTING COLUMN
Document Type and Number:
WIPO Patent Application WO/2024/055693
Kind Code:
A1
Abstract:
A transmission assembly of a lifting column, which relates to the field of linear actuators, comprises a driving device (100), a first sleeve (110), and a second sleeve (120) arranged in the first sleeve (110), wherein a first lead screw (130) and a second lead screw (140) are arranged in the second sleeve (120). The transmission assembly further comprises a planetary gear set (200) in driving fit with a driving shaft of the driving device (100), wherein the planetary gear set (200) comprises a planet gear (230) and an outer gear ring (240) engaged with the planet gear (230); the first sleeve (110) is in driving fit with the outer gear ring (240); the first sleeve (110) and the second sleeve (120) can rotate synchronously, and the first sleeve (110) and the second sleeve (120) can be relatively extended and retracted in an axial direction; and two ends of the second sleeve (120) are respectively in threaded transmission connection with the first lead screw (130) and the second lead screw (140), thereby solving the problem of poor stability during the telescopic movement process of the transmission assembly. The present invention further relates to a lifting column.
Inventors:
LI WEIQIANG (CN)
WANG ZHENGFANG (CN)
LI ZHANYUAN (CN)
WANG ZHENGFANG (CN)
LI ZHANYUAN (CN)
Application Number:
PCT/CN2023/103788
Publication Date:
March 21, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
ZHEJIANG JIECANG LINEAR MOTION TECH CO LTD (CN)
International Classes:
F16H37/12; B66F3/10; F16B7/10; F16H25/20
Foreign References:
| CN218598753U | 2023-03-10 | |||
| CN109399502A | 2019-03-01 | |||
| US20150047443A1 | 2015-02-19 | |||
| CN107725705A | 2018-02-23 | |||
| CN111237416A | 2020-06-05 | |||
| CN112855887A | 2021-05-28 | |||
| JP2011052760A | 2011-03-17 | |||
| DE19736503A1 | 1999-02-25 | |||
| JP2017166546A | 2017-09-21 | |||
| DE102020113958A1 | 2021-11-25 |
Attorney, Agent or Firm:
HANGZHOU HUADING INTELLECTUAL PROPERTY LAW FIRM (CN)
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