Title:
SELF-CLOSING HYDRAULIC BUFFER HINGE
Document Type and Number:
WIPO Patent Application WO/2022/063007
Kind Code:
A1
Abstract:
A self-closing hydraulic buffer hinge, comprising: a protruding sheet (3), a recessed sheet (18), a screw shaft (7), a pressure spring (9), an oil cylinder (15), a restriction sleeve (2), a screw sleeve (5) and a connection sleeve (10). Two through grooves (201) are axially symmetrically provided on the wall of the restriction sleeve (2), and comprise parallel sections (2011) and non-parallel sections (2012). The screw shaft (7) in the screw sleeve (5) cooperate with the screw sleeve (5) to form a meshed spiral elevation structure. The spiral elevation structure is lifted in an direction which the screw shaft (7) moves upwards axially when the hinge is closed.
Inventors:
WU ZHAOJIAN (CN)
Application Number:
PCT/CN2021/118584
Publication Date:
March 31, 2022
Filing Date:
September 15, 2021
Export Citation:
Assignee:
GUANGDONG ZHAOGAO METAL TECH CO LTD (CN)
International Classes:
E05F3/20
Foreign References:
| CN109681068A | 2019-04-26 | |||
| CN104903531A | 2015-09-09 | |||
| CN213540043U | 2021-06-25 | |||
| CN101718162A | 2010-06-02 | |||
| CN2358178Y | 2000-01-12 | |||
| DE102006019529A1 | 2007-11-08 |
Attorney, Agent or Firm:
DAIJVN LAWFIRM OF GUANGDONG (CN)
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