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Elevator safety loop capable of implementing door preopening and floor realigning function

A safety loop, re-leveling technology, used in elevators, lifts, transportation and packaging in buildings, can solve the problems of occupying a lot of space, unsatisfactory safety performance, expensive contactors, etc., to overcome safety Effect

Active Publication Date: 2005-10-26
SHANGHAI STEP ELECTRIC
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] In the field of elevator control, the existing control system can realize the functions of pre-opening the door and re-leveling basically in the following two forms: one is realized through micro switches or travel switches, which does not meet the requirements of the national standard; One is to use the contactor to realize the pre-opening and re-leveling functions through the peripheral connection. Obviously, the price of the contactor used in this method is relatively expensive, the safety performance is not very ideal, and it takes up a lot of space

Method used

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  • Elevator safety loop capable of implementing door preopening and floor realigning function
  • Elevator safety loop capable of implementing door preopening and floor realigning function
  • Elevator safety loop capable of implementing door preopening and floor realigning function

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Embodiment Construction

[0024] Such as figure 1 As shown, in the initial state of the door zone circuit I, the door zone feedback loop is turned on, which means that K12_5 is closed. Once the car enters the position of the door zone circuit I, the door zone circuit I forms a path, and then, no matter K12_5 Whether it is closed or not depends on K10_4 self-locking, that is, self-conduction, and the door zone circuit I is not disconnected until the car is not in the position of the door zone circuit I.

[0025] Such as figure 2 As shown, in the initial state of the door zone circuit II, the door zone feedback loop is turned on, and the door zone circuit 1 has just been turned on in the previous link, which means that K12_2 and K10_5 are closed. Once the car enters the door zone circuit II The position of the door zone circuit II just constitutes the path, and then, regardless of whether K12_2 is closed or not, the door zone circuit II is disconnected until the car is not in the position of the door z...

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Abstract

A high-safety circuit of elevator for pre-opening thedoor and realigning the floor is composed of door interlock circuit, two door circuits, door feedback circuit, speed feedback circuit, and safety circuit. When the cage reaches a floor, the door circuits and door feedback circuit are turned on and the door interlock circuit is turned off. When the cage is left from a floor, the door feedback circuit and door circuits are turned off the door interlock circuit is turned on. When two door circuits and door interlock circuit are turned off, the safety circuit is turned on.

Description

technical field [0001] The invention relates to an elevator circuit, in particular to an elevator safety circuit capable of realizing the functions of pre-opening the door and re-leveling. Background technique [0002] The elevator does not have accurate leveling, or as time goes by, it is inevitable that the car will shift due to the deformation of the wire rope after leveling, and the consequences are also very serious. Therefore, the elevator should have the functions of pre-opening the door and re-leveling. [0003] In the field of elevator control, the existing control system can realize the functions of pre-opening the door and re-leveling basically in the following two forms: one is realized through micro switches or travel switches, which does not meet the requirements of the national standard; One is to use the contactor to realize the pre-opening and re-leveling functions through peripheral wiring. Obviously, the price of the contactor used in this method is relati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/06
Inventor 黄强
Owner SHANGHAI STEP ELECTRIC
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