KNOB LOCK, MAINTENANCE TOOL AND LED DISPLAY SCREEN

Title:

KNOB LOCK, MAINTENANCE TOOL AND LED DISPLAY SCREEN

Document Type and Number:

WIPO Patent Application WO/2022/042069

Kind Code:

A1

Abstract:

A knob lock, a maintenance tool (4) and an LED display screen, the knob lock comprising a lock body (31), the lock body (31) comprises a head (311) and a limiting portion (312), the diameter of the head (311) is larger than the diameter of the limiting portion (312), a first magnet (33) is provided within the head (311), and the limiting portion (312) is provided with a limiting block (32). The maintenance tool (4) comprises a body (41), the body (41) is internally provided with a second magnet (42), and the second magnet (42) and the first magnet (33) of the knob lock are magnetically attracted to one another. The LED display screen comprises an LED display module (1) and a box body (2), the knob lock is mounted on the LED display module (1), an avoidance hole (21) is provided on the box body (2), and when the LED display module (1) is mounted on the box body (2), the first magnet (33) and the limiting block (32) are respectively located on both sides of the avoidance hole (21).

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Inventors:

CHEN FALONG (CN)
YANG KUANG (CN)
ZHAO PINGLIN (CN)

Application Number:

PCT/CN2021/105240

Publication Date:

March 03, 2022

Filing Date:

July 08, 2021

Export Citation:

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Assignee:

UNILUMIN GROUP CO LTD (CN)

International Classes:

F16B5/10; F16M11/04; G09F9/33

Foreign References:

CN212959400U	2021-04-13
CN208967368U	2019-06-11
CN209831496U	2019-12-24
CN203297209U	2013-11-20
CN204332274U	2015-05-13
KR101705512B1	2017-02-09
CN202021801457U	2020-08-25

Other References: