Title:
ELEVATOR SAFETY SYSTEM AND SAFETY CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/205583
Kind Code:
A1
Abstract:
Disclosed are an elevator safety system and a safety control method. The elevator safety system comprises multiple first safety switches (11) arranged in an elevator car, multiple second safety switches (12) arranged in a machine room, a car ceiling electronic safety plate (13), a machine room electronic safety plate (14) and a safety circuit (15), wherein the car ceiling electronic safety plate (13) is mounted on a car ceiling of the elevator car; the machine room electronic safety plate (14) is mounted in the machine room; and the safety circuit (15) is formed by serially connecting a power supply (151), a driving controller (152) and a brake (153).
The car ceiling electronic safety plate (13) is used for receiving a state signal of the first safety switch (11) and outputting the state signal to the machine room electronic safety plate (14). The machine room electronic safety plate (14) is used for receiving a state signal of the second safety switch (12) and disconnecting the safety circuit (15) when any one of the first safety switches (11) or the second safety switches (12) is abnormal.
Inventors:
TANG CHENGFENG (CN)
Application Number:
PCT/CN2018/115066
Publication Date:
October 31, 2019
Filing Date:
November 12, 2018
Export Citation:
Assignee:
SUZHOU INOVANCE TECHNOLOGY CO (CN)
International Classes:
B66B5/00
Foreign References:
| CN108394775A | 2018-08-14 | |||
| CN205257696U | 2016-05-25 | |||
| CN201777738U | 2011-03-30 | |||
| CN202089652U | 2011-12-28 | |||
| EP0903314A1 | 1999-03-24 | |||
| CN204778119U | 2015-11-18 |
Attorney, Agent or Firm:
SHENZHEN STANDARD PATENT & TRADEMARK AGENT LTD. (CN)
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