Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Xiaojun Cui0
Date of Patent
February 4, 2020
0Patent Application Number
161169000
Date Filed
August 29, 2018
0Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present disclosure discloses a double-speed electric winch and an operating method of the winch. The winch comprises two groups of planetary gears with different transmission ratios in a gearbox. The two groups of planetary gears have corresponding outer ring gears. The gearbox has a rotatable handle which has a locking head inserted in the gearbox. As the handle rotates, the locking head engages with the outer ring gears in different manners to provide a first rotating speed mode, a second rotating speed mode, and a disengaged mode.
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