Safety inspection system for occupant evacuation elevator, and method thereof

Patent metadata

Field	Value
Publication number	US-11767195-B2
Application number	US-201816198800-A
Country	US
Kind code	B2
Filing date	Nov 22, 2018
Priority date	Nov 22, 2017
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

A safety inspection system of an occupant evacuation elevator capable of having a laser range finder installed on each of an elevator rope and an elevator guide rail of the occupant evacuation elevator of a skyscraper and checking a length and verticality of each of the elevator rope and the elevator guide rail measured from the laser range finder to monitor slight distortion or location variation in real time, and accordingly, capable of easily performing a safety inspection of the occupant evacuation elevator, capable of performing the safety inspection of the occupant evacuation elevator in real time to operate the occupant evacuation elevator again in an operation mode of the occupant evacuation elevator according to an occurrence of a disaster situation in the skyscraper, and accordingly, capable of safely and quickly evacuating occupants and a method thereof are provided.

First claim

What is claimed is:

1. A safety inspection system of an occupant evacuation elevator comprising:
an occupant evacuation elevator (OEE) provided with an elevator rope and an elevator guide rail, and in which, while the occupant evacuation elevator is ordinarily used for passengers in a skyscraper, in response to a disaster situation a mode of the occupant evacuation elevator converts to an operation mode, wherein the operation mode is an emergency mode, and a safety inspection is performed in a state in which the occupant evacuation elevator is stopped;
an occupant evacuation elevator safety inspection part configured to stop the operation of the occupant evacuation elevator in the operation mode which operates the occupant evacuation elevator and to perform the safety inspection to operate the occupant evacuation elevator again;
a first laser range finder attached to both ends of the elevator rope to measure a length and verticality of the elevator rope; and
a second laser range finder attached to both ends of the elevator guide rail to measure a length and verticality of the elevator guide rail,
wherein the occupant evacuation elevator safety inspection part completes the safety inspection of the occupant evacuation elevator and operates the occupant evacuation elevator again in response to the length and verticality of each of the elevator rope and the elevator guide rail being less than or equal to a predetermined error range.

2. The safety inspection system of the occupant evacuation elevator of claim 1 , wherein the occupant evacuation elevator safety inspection part includes a first laser range finder driving part configured to drive the first laser range finder; a second laser range finder driving part configured to drive the second laser range finder; a power supply device configured to supply uninterruptible power to the first laser range finder and the second laser range finder; an elevator rope length and verticality checking part configured to check the length and verticality of the elevator rope according to a measuring result of the first laser range finder driving part; an elevator guide rail length and verticality checking part configured to check the length and verticality of the elevator guide rail according to a measuring result of the second laser range finder driving part; and a safety inspection controller configured to drive the first laser range finder driving part and the second laser range finder driving part and compare whether the length and verticality of each of the elevator rope length and verticality checking part and the elevator guide rail length and verticality checking part are within the predetermined error range to determine whether the elevator rope and the elevator guide rail are slightly adjusted, and configured to complete the safety inspection of the occupant evacuation elevator and operate the occupant evacuation elevator again in response to the length and verticality of each of the elevator rope and the elevator guide rail being less than or equal to the predetermined error range.

3. The safety inspection system of the occupant evacuation elevator of claim 2 , wherein the occupant evacuation elevator safety inspection part further includes an adjustment amount determination part configured to compare the length and verticality of each of the elevator rope and the elevator guide rail with the error range of a predetermined length and verticality to determine a slight adjustment amount of each of the elevator rope and the elevator guide rail when slight adjustment is necessary.

4. The safety inspection system of the occupant evacuation elevator of claim 3 , wherein tension of the elevator rope is slightly adjusted and location variation of the elevator guide rail is slightly adjusted when the adjustment amount determination part determines that slight adjustment is necessary.

5. The safety inspection system of the occupant evacuation elevator of claim 1 , wherein the occupant evacuation elevator safety inspection part stops operating the occupant evacuation elevator again in response to the length and verticality of each of the elevator rope and the elevator guide rail being depart from the predetermined error range.

6. The safety inspection system of the occupant evacuation elevator of claim 1 , wherein:
the first laser range finder includes a first laser light emitting part and a first laser light receiving part and measures the length and verticality of the elevator rope; and
the second laser range finder includes a second laser light emitting part and a second laser light receiving part and measures the length and verticality of the elevator guide rail.

7. The safety inspection system of the occupant evacuation elevator of claim 6 , wherein
the first laser range finder and the second laser range finder are continuously driven to check the length and verticality of each of the elevator rope and the elevator guide rail in real time in response to the occupant evacuation elevator being operated again.

8. A safety inspection method of an occupant evacuation elevator (OEE) comprising:
a) normally operating all elevators of a skyscraper;
b) checking whether a disaster situation occurs in the skyscraper;
c) stopping operations of all elevators of the skyscraper and converting an occupant evacuation elevator to an operation mode in response to the disaster situation;
d) driving first and second laser range finders respectively installed in an elevator rope and an elevator guide rail of the occupant evacuation elevator;
e) checking a length and verticality of each of the elevator rope and the elevator guide rail measured from the first and second laser range finders; and
f) completing safety inspection of the occupant evacuation elevator and operating the occupant evacuation elevator again.

9. The safety inspection method of an occupant evacuation elevator of claim 8 , wherein, in the operation e), the length and verticality of each of the elevator rope and the elevator guide rail are compared with an error range of a predetermined length and verticality to determine whether slight adjustment is necessary.

10. The safety inspection method of the occupant evacuation elevator of claim 9 , wherein tension of the elevator rope is slightly adjusted and location variation of the elevator guide rail is slightly adjusted when slightly adjusting the elevator rope and the elevator guide rail is necessary.

11. The safety inspection method of the occupant evacuation elevator of claim 8 , wherein, in the operation d), the first and second laser range finders are continuously driven to check the length and verticality of each of the elevator rope and the elevator guide rail in real time in response to the occupant evacuation elevator being operated again.

12. The safety inspection method of the occupant evacuation elevator of claim 8 , wherein operating the occupant evacuation elevator again is stopped in response to the length and verticality of each of the elevator rope and the elevator guide rail being depart from a predetermined error range.

Assignees

• Korea Inst Civil Eng & Building Tech

Inventors

• Chae Seung Un
• Cho Bum Yeon
• Kim Heung Youl
• Kwon Ki Seok

Classifications

• B66B5/0031 Primary

  for safety reasons · CPC title

• B66B1/28

  electrical (detecting excessive speed B66B5/04 {; control of electrical motor H02P}) · CPC title

• B66B1/3423

  Control system configuration, i.e. lay-out · CPC title

• B66B5/0087

  Devices facilitating maintenance, repair or inspection tasks (devices incorporated in the buffer B66B5/288; railings on top of the car B66B11/0226) · CPC title

• B66B5/021

  the abnormal operating conditions being independent of the system (alarm systems in general G08B) · CPC title