Control system and control method for preventing elevator car from accidentally moving

A technology for elevator car and accidental movement, applied in the field of elevator control, can solve problems such as hidden dangers of elevator safe operation and malfunction of the control center, and achieve the effect of avoiding major safety accidents and facilitating modification.

Inactive Publication Date: 2015-12-23
GUIZHOU TIANYI ELEVATOR COMPLETE SET EQUIP
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the car is in the non-door area, the hall door or car door of the elevator is in the open state, due to the malfunction of the control center, the contact adhesion of the brake circuit, the failure of a single component of the drive system that the elevator depends on for safe operation, etc. Accidents caused by the movement of the car occur from time to time, which brings great hidden dangers to the safe operation of the elevator

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control system and control method for preventing elevator car from accidentally moving

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

[0016] Such as figure 1 A control system for preventing accidental movement of the elevator car is shown, including a door area signal acquisition unit, a car shaft position positioning unit, an elevator control center, a current breaking unit and an elevator braking unit; the door area signal acquisition unit and The signal output terminals of the car shaft position positioning unit are respectively connected to the signal input terminals of the elevator control center, and the elevator control center outputs signals to the current breaking unit to control the elevator braking unit.

[0017] A control method for a control system preventing accidental movement of an elevator car, comprising the following steps:

[0018] (1) The door area signal acquisition unit judges and identifies whether the hall door of each floor is in the cl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a control system for preventing an elevator car from accidentally moving. The control system comprises a door area signal collecting unit, an elevator car shaft position positioning unit, an elevator control center, a current disjunction unit and an elevator braking unit. The signal output end of the door area signal collecting unit and the signal output end of the elevator car shaft position positioning unit are connected with the signal input end of the elevator control center. The elevator control center output signals to the current disjunction unit to control the elevator braking unit. When the elevator car is not located at the door area position and the elevator car accidentally moves under the door opening state, the elevator car can be effectively stopped, and major safety accidents are avoided. Meanwhile, an existing elevator system does not need to be greatly modified, and elevators in the using process or elevators in the producing process can be conveniently refitted.

Description

technical field [0001] The invention relates to the technical field of elevator control, in particular to a control system and a control method for preventing accidental movement of an elevator car. Background technique [0002] According to the national GB-7588-2003 "Safety Code for Elevator Manufacturing and Installation", the conditions for allowing elevator re-leveling are stipulated: "After the elevator stops, it is allowed to perform an action to correct the car stop position during loading or unloading. Make the car move continuously (automatically or inching)." That is to say, when the elevator stops at the leveling position and opens the door, the load of the car changes due to loading and unloading factors, which in turn leads to the expansion and contraction of the wire rope, and the car may not be at the leveling position. , at this time, the car is allowed to run at the jog speed within the scope of the door area when the car opens the door. In addition, the ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B66B5/02
Inventor 严天忠
Owner GUIZHOU TIANYI ELEVATOR COMPLETE SET EQUIP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products