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Title:
OPERATING HANDLE, ROTATION CONTROL SYSTEM, AND OPERATION MACHINE
Document Type and Number:
WIPO Patent Application WO/2024/001133
Kind Code:
A1
Abstract:
The present invention relates to the field of engineering machinery, and provides an operating handle, a rotation control system, and an operation machine. The operating handle comprises a handle (1) and a valve seat (2); positions, corresponding to a left rotation position and a right rotation position, on a pressing disc (6) of the valve seat (2) are each provided with a switch assembly (5), and the switch assembly (5) is used for controlling opening and closing of a rotary brake valve. When the handle (1) is not operated, the handle (1) is located in a middle position, and at this time, the two switch assemblies are both in a disconnected state; when the switch assemblies are disconnected, the rotary brake valve is open, and when the handle (1) is pulled leftwards or rightwards, the switch assembly located on the side in a pulling direction is pressed, and the switch assembly is closed and turned on; and when the switch assembly is closed, the rotary brake valve is in a closed state, and at this time, the upper can achieve a rotation action. According to the present application, a mechanical switch assembly having higher reliability is used for replacing a pressure sensor in the prior art, so that the situation of being stuck and stagnant or failure would not occur.

Inventors:
OUYANG YAZHOU (CN)
BU XIAOPING (CN)
LI SHENGHUA (CN)
Application Number:
PCT/CN2022/143286
Publication Date:
January 04, 2024
Filing Date:
December 29, 2022
Export Citation:
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Assignee:
SANY MOBILE CRANES CO LTD (CN)
International Classes:
B66C13/20; E02F9/22; F15B13/044; F16K31/60
Foreign References:
CN103321979A2013-09-25
CN102392469A2012-03-28
CN217559161U2022-10-11
CN104214409A2014-12-17
CN104976414A2015-10-14
CN112664502A2021-04-16
CN203603757U2014-05-21
CN206256489U2017-06-16
CN215219542U2021-12-17
JP2001012645A2001-01-16
US20010029834A12001-10-18
CN102762798A2012-10-31
CN201650260U2010-11-24
Attorney, Agent or Firm:
BEIJING BRIGHT IP AGENCY CO., LTD. (CN)
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