Title:
ELECTRIC PUSH-PULL MECHANISM
Document Type and Number:
WIPO Patent Application WO/2024/045022
Kind Code:
A1
Abstract:
An electric push-pull mechanism (10), comprising a mounting bracket (200), a drive unit (300) and a control unit (400), wherein a guide rod (210), which is sleeved in a motion bracket (220) in a slidable manner, is provided on the mounting bracket (200); the drive unit (300) comprises an electric motor (310), a power source (320), a lead screw (330), which is in drive connection with the electric motor (310), and a transmission member (340), on which a positioning member (350) is provided and which is in threaded connection to the lead screw (330) and is connected to the motion bracket (220); the control unit (400) comprises a control circuit board (410), and a plurality of groups of photoelectric through-beam assemblies, which are arranged in a row and are electrically connected to the control circuit board (410), through-beam region are formed between transmitting tubes (420) and receiving tubes (430) of the photoelectric through-beam assemblies, stroke regions are formed between adjacent photoelectric through-beam assemblies, and the through-beam regions and the stroke regions form a sensing channel (440); the tail end of the positioning member (350) is inserted into the sensing channel (440) and moves along the sensing channel (440) to shield or leave the through-beam regions; the transmission member (340) shields a stroke position of one photoelectric through-beam assembly which corresponds to the motion bracket (220); and when the level of a photoelectric through-beam assembly corresponding to a preset stroke position changes, the electric motor (310) is controlled to rotate reversely. The electric push-pull mechanism (10) realizes accurate control of multiple stages of strokes, thereby reducing the production and usage costs of the electric push-pull mechanism (10).
Inventors:
MA RONG (CN)
Application Number:
PCT/CN2022/116120
Publication Date:
March 07, 2024
Filing Date:
August 31, 2022
Export Citation:
Assignee:
SHENZHEN RONGMA YISHENG TECH CO LTD (CN)
International Classes:
G01B21/02; H02K7/06; H02K11/20; H02K11/30
Foreign References:
| CN215893559U | 2022-02-22 | |||
| CN105234760A | 2016-01-13 | |||
| CN205583916U | 2016-09-14 | |||
| CN205218720U | 2016-05-11 | |||
| CN103622805A | 2014-03-12 | |||
| CN105854101A | 2016-08-17 | |||
| CN208679185U | 2019-04-02 | |||
| CN109366992A | 2019-02-22 | |||
| CN206911795U | 2018-01-23 | |||
| JP2009014150A | 2009-01-22 | |||
| FR1271762A | 1961-09-15 |
Attorney, Agent or Firm:
GUANGDONG STANDARD LAW FIRM (CN)
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