A kind of type gate area indicating lamp device
Technical field:
The present invention relates to elevators field more particularly to a kind of type gate area indicating lamp devices.
Background technology:
When elevator breaks down suddenly, and car passenger is caught in, generally require to take emergency relief measure.When car not
At flat bed region, for there is machine room elevator, only car need to be controlled by the way of declutching manually is moved to flat bed region, so
People is rescued in back pullout (BPO);For machine-roomless lift, then car movement can only be controlled by the way of electric brake releasing.Due to this
When, system out of power, so even if leveling switch acts, car there will not be flat bed action and generate.So for there is machine room elevator,
It can be with viewing car shift position immediately below slave house-owner machine;For machine-roomless lift, due to can not direct viewing work as to car
Front position, so just using by judging whether car reaches flat bed region by the way of watching door area instruction lamp on/off.Door area
Indicator light circuit was switched using door area to realize the control of area's indicator light on the door in the past.Now invent a kind of areas Xin Men instruction
The mode that circuit for lamp is realized.
Invention content:
The technical problem to be solved by the invention is to provide one kind need not installing extra switch and trailing cable additional
In the case of, form door area indicator light performance loop.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:A kind of type gate area instruction
Lamp device, including control panel, accumulator, power supply relay, trailing cable, leveling switch and door area indicator light, the power supply after
Electric appliance includes normally opened power supply relay, the first normally closed power supply relay and the second normally closed power supply relay, normally opened power supply relay
Be connected in series with control panel, trailing cable, leveling switch, at normally opened power supply relay it is in parallel one be connected with accumulator the
One normally closed power supply relay, connection and the concatenated second normally closed power supply relay of door area indicator light after leveling switch.
Further, when system power supply, control panel, normally opened power supply relay and leveling switch form system and work back
Road.
When system is not powered, accumulator, the first normally closed power supply relay, leveling switch, the second normally closed power supply relay and
Door area indicator light forms door area indicator light performance loop.
Further, the leveling switch is magnetic switch.
Compared with prior art, usefulness of the present invention is:This type gate area indicating lamp device, need not install volume additional
In the case that the areas Wai Men are switched with trailing cable, it need to can only be controlled by power supply relay contact change-over and leveling switch
The light on and off of door area indicator light.The method saves cost, and simple possible.
Description of the drawings:
The following further describes the present invention with reference to the drawings.
Fig. 1 is a kind of type gate area indicating lamp device schematic diagram of the present invention;
Fig. 2 is present system normal work schematic diagram;
Fig. 3 is present system non-normal working schematic diagram.
In figure:1, control panel;21, normally opened power supply relay;22, the first normally closed power supply relay;23, the second normally closed power supply
Relay;3, trailing cable;4, leveling switch;5, door area indicator light;6, accumulator.
Specific implementation mode:
Below in conjunction with the accompanying drawings and specific implementation mode the present invention will be described in detail:
A kind of type gate area indicating lamp device shown in Fig. 1, including control panel 1, power supply relay, trailing cable 3, flat bed are opened
It includes normally opened power supply relay 21, the first normally closed power supply relay to close 4, door area indicator light 5 and accumulator 6, the power supply relay
Device 22 and the second normally closed power supply relay 23, normally opened power supply relay 21 are connected with control panel 1, trailing cable 3, leveling switch 4
It forms, a first normally closed power supply relay 22 being connected with accumulator 6 in parallel, is opened in flat bed at normally opened power supply relay 21
Connection and 5 concatenated second normally closed power supply relay 23 of door area indicator light after closing 4.
When system power supply as shown in Figure 2, control panel 1, normally opened power supply relay 21 and leveling switch 4 form system work
Circuit, power supply relay obtain electric, 21 opened point of normally opened power supply relay closure, and the normally closed point of normally closed power supply relay 22 is disconnected, put down
Layer switch 4 works normally.
When system non-normal working as shown in Figure 3, accumulator 6, the first normally closed power supply relay 22, leveling switch 4,
Two normally closed power supply relays 23 and door area indicator light 5 form door area indicator light performance loop, are used for electric brake releasing at this time and implement tightly
First aid is helped, power supply relay out of power, and 21 normally opened contact of normally opened power supply relay is off, the first normally closed power supply relay
22 and 23 normally-closed contact of the second normally closed power supply relay at be closed open state, leveling switch 4 is for control door area indicator light 5 bright
It goes out.Rescue personnel rescues according to implementation the case where 5 light on and off of indicator light.
Only it is presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, it is every according to this
The technical spirit of invention still falls within skill of the present invention to any simple modification, equivalent change and modification made by above example
In the range of art scheme.