Title:
DOOR LOCKING SYSTEM FOR USE WITH MANUALLY OPERATED ELEVATOR DOOR
Document Type and Number:
WIPO Patent Application WO/2018/210157
Kind Code:
A1
Abstract:
A door locking system (100) for use with a manually operated elevator door: a door frame locking hole (114) is openly provided on a lock mounting surface (112) of an elevator door frame (110); a door locking device (120) comprises a door lock link rod (122) and a lock tongue (124) which is connected to the door lock link rod (122); a door ball device (140) is mounted outside of the elevator door frame (110), the door ball device (140) comprising a door ball link rod (142); an end of a pull cord (130) is connected on the door lock link rod (122), while another end is connected on the door ball link rod (142); a door blade device (150) is mounted on an elevator car; the door blade device (150) presses the door ball link rod (142) when the elevator car reaches a floor, then driving the pull cord (130) to tighten the door lock link rod (122), the door lock link rod (122) driving the lock tongue (124) to retract into the door frame locking hole (114); the door blade device (150) separates from the door ball link rod (142) when the elevator car leaves the floor, and the door ball link rod (142) drives the pull cord (130) to relax the door lock link rod (122), the door lock link rod (122) driving the lock tongue (124) to extend beyond the door frame locking hole (114). The structure of the door locking system (100) for use with a manually operated elevator door is relatively simple and is reliable.
Inventors:
WU JIANSHENG (CN)
Application Number:
PCT/CN2018/085950
Publication Date:
November 22, 2018
Filing Date:
May 08, 2018
Export Citation:
Assignee:
SUZHOU TRANS ELEVATOR CO LTD (CN)
International Classes:
B66B13/14; E05B53/00; E05B65/00
Foreign References:
| CN107055288A | 2017-08-18 | |||
| CN206798928U | 2017-12-26 | |||
| CN204369384U | 2015-06-03 | |||
| JP2009263083A | 2009-11-12 | |||
| CN101734536A | 2010-06-16 | |||
| US4483420A | 1984-11-20 |
Attorney, Agent or Firm:
BEIJING UTC LIANFENG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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