Title:
ELECTRIC CONTROL VALVE AND ACTUATOR THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/122979
Kind Code:
A1
Abstract:
Disclosed are an electric control valve and an actuator thereof. The actuator comprises a motor, a deceleration transmission mechanism, a pin shaft, and a pin cover. The pin shaft comprises a first end and a second end which are opposite. The first end is transmittingly connected to the motor by means of a deceleration transmission mechanism and enables the pin shaft to rotate and linearly move at the same time under the driving of the motor. The second end is rotatably inserted into the pin cover. The pin cover synchronously and linearly moves along with the pin shaft. According to the present invention, the pin shaft is separated from a valve rod by means of the pin cover, so that collision and friction caused by relative rotation and the like when the pin shaft is in direct contact with the valve rod can be effectively reduced, noise generated is reduced, transmission efficiency and transmission stability are improved, thereby increasing accuracy of the movement of the valve rod.
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Inventors:
ZUO XIAOBING (CN)
LI MIN (CN)
ZHU XIUHUA (CN)
LI MIN (CN)
ZHU XIUHUA (CN)
Application Number:
PCT/CN2021/142165
Publication Date:
July 06, 2023
Filing Date:
December 28, 2021
Export Citation:
Assignee:
JOHNSON ELECTRIC JIANGMEN CO LTD (CN)
International Classes:
F16K31/53
Foreign References:
| CN109723899A | 2019-05-07 | |||
| CN111795093A | 2020-10-20 | |||
| CN109681690A | 2019-04-26 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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