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Patent Searching and Data


Title:
ANTI-THEFT SCREW AND DRIVING TOOL THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/056169
Kind Code:
A1
Abstract:
An anti-thief screw (100) and a matching anti-theft screwdriver (400). The anti-theft screw(100) includes a screw shaft (102) including at least one thread twisted along a first direction (107); and a screw head (101) at one end of the screw shaft (102), including a plurality of working surfaces formed on an end surface of the screw head (101) to withstand a torque force (106) that drives the anti-theft screw (100) along or against the first direction (107), each of the plurality of working surfaces extends along a longitudinal direction, the longitudinal directions of the plurality of working surfaces do not point to a first common center, and a normal direction of each of the plurality of working surface does not point to a second common center. The anti-theft screwdriver (400) includes an end surface matching the shape of an end portion of the anti-theft screw (100).

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Inventors:
SHI YI (CN)
XU QIAOZHONG (CN)
Application Number:
PCT/CN2019/107449
Publication Date:
April 01, 2021
Filing Date:
September 24, 2019
Export Citation:
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Assignee:
NEUTRON HOLDINGS INC (CN)
International Classes:
F16B23/00; B25B15/00
Foreign References:
JP2011012788A2011-01-20
CN2837582Y2006-11-15
CN102112757A2011-06-29
CN201057210Y2008-05-07
CN205478784U2016-08-17
CN105452683A2016-03-30
Attorney, Agent or Firm:
BEIJING YIFA LAW FIRM (CN)
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