Title:
ELECTRIC PUSH ROD HAVING HAND-ROTATORY RELEASE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/037494
Kind Code:
A1
Abstract:
An electric push rod having a hand-rotatory release device, comprising a housing, a drive motor, a transmission assembly, a rotating lead screw (20) and a transmission nut (21), and further comprising: a clutch device, which is for connecting or disconnecting the power transmission between the transmission assembly and the rotating lead screw (20); a self-locking device, which is for generating frictional resistance on the rotating lead screw (20) when the rotating lead screw (20) reversely rotates; and a hand-rotatory release device, which comprises a release knob (55). A first drive member is connected to the clutch device, a second drive member is used to connect the self-locking device, the release knob (55) is in an initial state and a fully released state by means of a rotational movement, the first drive member drives the clutch device to disconnect the power connection during the process from the initial state to the fully released state, and the second drive member drives a release torsion spring (43) to release.
Inventors:
XU XIN (CN)
ZHAO XINXING (CN)
ZHAO XINXING (CN)
Application Number:
PCT/CN2021/112502
Publication Date:
February 24, 2022
Filing Date:
August 13, 2021
Export Citation:
Assignee:
ZHEJIANG JIECANG LINEAR MOTION TECH CO LTD (CN)
International Classes:
F16H37/12; F16D49/08; F16H25/20; F16H25/24; H02K7/06; H02K7/10; H02K7/116
Foreign References:
| CN112096819A | 2020-12-18 | |||
| CN111577850A | 2020-08-25 | |||
| CN111810603A | 2020-10-23 | |||
| US20140345404A1 | 2014-11-27 | |||
| US5575790A | 1996-11-19 | |||
| CN110089011A | 2019-08-02 | |||
| CN101106297A | 2008-01-16 | |||
| CN105634192A | 2016-06-01 | |||
| CN201621013870U | 2016-08-31 | |||
| CN201220326831U | 2012-07-06 |
Attorney, Agent or Firm:
HANGZHOU HUADING INTELLECTUAL PROPERTY LAW FIRM (CN)
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