Title:
HEAD LOCK AND HEAD-MOUNTED HELMET BODY
Document Type and Number:
WIPO Patent Application WO/2020/134396
Kind Code:
A1
Abstract:
A head lock and a head-mounted helmet body. The head lock comprises: a lower cover (1), an upper housing (2), a left adjustable strip (3), a right adjustable strip (4), a gear (5), and a rotary knob (6); the upper housing (2) is provided with a guide slot, and the upper housing (2) penetrates through the left adjustable strip (3) and right adjustable strip (4) by means of the guide slot; a ring of inner teeth (21) are provided on the upper housing (2), a single inner tooth (21) is of an asymmetrical shape, and one ring of inner teeth (21) is used as a stationary ratchet; a hook (51) is provided on the gear (5), a sharp point (511) is provided on the hook (51), and the sharp point (511) is used as a movable claw; the ratchet and the movable claw form a ratchet mechanism; one ring of outer teeth is provided on the gear (5), and a single outer tooth is of a symmetrical shape; racks are provided on the left adjustable strip (3), and racks are provided on the right adjustable strip (4); the gear (5) is engaged with the left adjustable strip (3) or the right adjustable strip (4) to form a gear-rack motion mechanism; the rotary knob (6) is used for opening the head lock. The head lock and the head-mounted helmet body is simple and convenient in use, compact and small in structure, light in weight, good in function effects, and high in comfort, and the user satisfaction in use is improved.
Inventors:
LIU RUOPENG (CN)
LUAN LIN (CN)
HUANG HE (CN)
WANG JIANDE (CN)
HU RUJIE (CN)
LUAN LIN (CN)
HUANG HE (CN)
WANG JIANDE (CN)
HU RUJIE (CN)
Application Number:
PCT/CN2019/111873
Publication Date:
July 02, 2020
Filing Date:
October 18, 2019
Export Citation:
Assignee:
SHENZHEN KUANG CHI METAMATERIAL TECH LTD (CN)
International Classes:
A42B3/08; A42B3/00
Domestic Patent References:
| WO2017108118A1 | 2017-06-29 |
Foreign References:
| CN2933054Y | 2007-08-15 | |||
| CN204670461U | 2015-09-30 | |||
| CN208192299U | 2018-12-07 | |||
| JP2018071038A | 2018-05-10 | |||
| CN202262473U | 2012-06-06 | |||
| CN202999450U | 2013-06-19 | |||
| CN206651434U | 2017-11-21 | |||
| US20150059065A1 | 2015-03-05 |
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