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Title:
AUTOMATIC CONTRACTING AND LOCKING RATCHET WHEEL LOCK
Document Type and Number:
WIPO Patent Application WO/2018/152925
Kind Code:
A1
Abstract:
An automatic contracting and locking ratchet wheel lock, comprising: a casing (100). A rotating wheel (200) is rotationally provided on the casing. A plurality of locking teeth (201) and a plurality of retaining grooves (202) are uniformly provided, along a circumferential direction, on an external circumferential wall of the rotating wheel. An energy storing spring (300) is coaxially and sleevingly provided within the rotating wheel. A first end of the energy storing spring is fixedly installed to the casing. A second end of the energy storing spring is fixedly installed to the rotating wheel. A steel cable (400) is wound around the external circumference wall of the rotating wheel. A first end of the steel cable is fixedly installed to the rotating wheel. A second end of the steel cable extends outside the casing. A fastening lock (500) is rotationally provided on the casing. A first end of the fastening lock has a locking protrusion (510) forming a matching engagement with any one of the plurality of locking teeth. A second end of the fastening lock is provided with a retaining protrusion (520) forming a matching engagement with any one of the plurality of retaining grooves. A first button (600) is connected to the first end of the fastening lock. A second button (700) is connected to the second end of the fastening lock. The automatic contracting and locking ratchet wheel lock provided in the invention has the advantages of reasonable structure and ease of use.

Inventors:
CHEN, Lijun (Xinsheng Village, Xinjie Street Xiaosha, Hangzhou Zhejiang 0, 310000, CN)
LIU, Yonggang (Xinsheng Village, Xinjie Street Xiaosha, Hangzhou Zhejiang 0, 310000, CN)
Application Number:
CN2017/078677
Publication Date:
August 30, 2018
Filing Date:
March 29, 2017
Export Citation:
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Assignee:
HANGZHOU XIAOSHAN HENGLI PLASTIC MANUFACTUTER (Xinsheng Village, Xinjie Street Xiaosha, Hangzhou Zhejiang 5, 310005, CN)
International Classes:
B60C27/12
Domestic Patent References:
WO2016024477A12016-02-18
Foreign References:
CN206510702U2017-09-22
CN2552817Y2003-05-28
CN204586389U2015-08-26
JP2007261570A2007-10-11
US20120090751A12012-04-19
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