SU1276607A1 - Device for interlocking two lifts - Google Patents

Abstract

A LOCKING DEVICE FOR TWO elevators containing two elevator motion control units, each of which includes call buttons, storey relays, the power supply of which includes corresponding call buttons, a door control switch and a large contactor: rosti, starting unit of one of the elevators , mode switch, two call registration relays of two elevators, in the power supply circuit of the windings of which the power buttons of the respective elevators and the start-up blocking relay with two contacts are included, in the power supply circuit of the winding It is connected through the contacts of one of the operating mode switches to the contacts of the corresponding floor relays, and both contacts of the start blocking relay are included in the supply circuit of the coils of the elevator contactors, characterized in that, in order to increase reliability, each elevator motion control unit is equipped with a time relay whose winding parallel to the power supply circuit of the relay, and the contacts are connected in series to the contact ones (L start blocking relays, the starting block of one elevator is equipped with two call memory relays, to the power supply circuits botoks of which are connected in series Contacts of the relay of control of door leaves, in parallel of which the contacts of the relay of registration of N3 calls of the corresponding elevators are included. 65 0д о vj

Description

The invention relates to mechanical engineering and can be used in lifts, in particular in elevators. The purpose of the invention is to increase reliability. The drawing shows the scheme of the proposed device blocking two elevators. The device contains elevator 1 and elevator 2 with control circuits, relays 3 and 4 delays for elevators 1 and 2, respectively, contacts of relays 3 and 4 delays, relay 5 and 6 call logs. Piffs 1 and 2, respectively, blocking relay 7 with contacts, relays 8 and 9 of the memory call for elevators 1 and 2, power supply JO JO, switch 11 operating modes of the elevators. The device works as follows. Switch 11 is in position as shown in the drawing. At the initial moment of time, when both elevators are free and there are no calls, the blocking relay 7 is de-energized, and its opening contacts are closed. Any of the elevators is ready to be turned on, either by order from the cabin or by a call from the landing pad., The drawing shows only three storey relays, which corresponds to three landing sites. Example. Free cabins are located on the lower floors and the passenger vyzgoet them alternately on the third floor. Taking into account that the call button of one of the elevators was pressed a little earlier than the other, the inclusion of elements 1, 072 of one of the elevator schemes also starts earlier. Let us assume that the elevator 1. call button is pressed a little earlier. Immediately after pressing the elevator 1 button, the elevator relay ZRE is activated, relay 5 and through the disconnecting contact of relay 7 and the closing contact of relay 3, switches on the high speed contactor coil circuit 1 a direction contactor and a motion relay that drives the cab in motion. Also, the closure contacts of the elevator 1 and the relay 8 in the relay circuit 7 are closed. If you press the elevator call button 2 on the third floor, it switches on the storey 5 and the relay 6, which leads to the closure of the MEC contacts 9 and 9 in the relay circuit 7 and the last one is under current, which leads to the opening of the opening contacts in the circuit of the elevator coil 2 and the high speed contactor of the elevator 2 does not turn on, while the relay 7 simultaneously opens another disconnecting contact in the circuit of the elevator 1, but the contactor CB does not open, since the contact in this circuit closes on the coil of the elevator 1 on stepping food. Thus, the cabin, elevator 1 continues to move on call to the third floor, and the elevator cabin 2 does not start moving. Relays 3 and 4 delays, while simultaneously calling two elevators, enable interlocking relay 7 earlier than I than high-speed contactors in elevators. Thanks to relays 3 and 4 delays, it is possible to avoid elevator malfunction,

Claims (1)

DEVICE FOR LOCKING TWO LIFTS, containing two elevator motion control units, each of which includes call buttons, floor relays, in the power supply circuit of which there are corresponding call buttons, door leaf relay and large contactor * · growth, one of elevators, an operating mode switch, two relays for registering a call for two elevators, ¹ in the power supply circuit of the windings of which are included the power buttons for calls of the corresponding elevators and a relay for blocking the start with two contacts, in the power circuit of the winding of which the contacts of the corresponding floor relays are connected through the contacts of one of the operating mode switches, and both contacts of the start-up relay ^ are included in the power supply circuit of the elevator contactor coils, characterized in that, in order to increase reliability, each elevator motion control unit is equipped with a time relay, the winding of which is connected parallel to the relay power circuit, and the contacts are connected in series to the contact blocking relay start, and the start block of one elevator is equipped with two call memory relays, to the power circuits of the windings of which The contacts of the door leaf control relay are connected in series, in parallel with which the contacts of the call registration relay of the corresponding elevators are connected. „” SU (π, 1276607