CN204737529U

CN204737529U - Detection circuitry of elevator lock

Info

Publication number: CN204737529U
Application number: CN201520459465.3U
Authority: CN
Inventors: 张晟
Original assignee: Suzhou Inovance Technology Co Ltd
Current assignee: Suzhou Inovance Technology Co Ltd
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2015-11-04
Anticipated expiration: 2025-06-30

Abstract

The utility model provides a detection circuitry of elevator lock, including main control board and safety loop, wherein, be provided with room lock detection terminal and sedan -chair lock detection terminal on the main control board, safety loop's end has the series connection and arrives a plurality of room door lock switch and a plurality of sedan -chair door lock switch of sedan -chair door detection terminal, just a plurality of room door lock switch's end still is connected to room lock detection terminal, and this detection circuitry still includes and parks when opening the door and room door lock switch, sedan -chair door lock switch closed switch of sealing up a door simultaneously at the elevator, head end, the other end that the one end of switch of sealing up a door is connected at room door lock switch are connected to on the main control board sedan -chair lock detection terminal. Implement the utility model discloses a detection circuitry of elevator lock stops the ladder when opening the door at the elevator, can effectively detect out elevator sedan -chair lock whether by the problem of short circuit, and then avoided the sedan -chair door to open and the elevator can also normally run the risk of ladder.

Description

A kind of testing circuit of door lock of elevator

Technical field

The utility model relates to elevator technology field, more particularly, relates to a kind of testing circuit of door lock of elevator.

Background technology

In elevator device, ensure that the safety of passenger is the most important thing in safety problem always, wherein, it is the importance ensureing elevator device safety that door lock detects.In door lock detection scheme, the error state that end user's elevator is current can be reminded in time when door lock breaks down time, avoid the generation of accident.

In existing elevator device, Room door switch and car door lock switch are the ends being connected on safety return circuit, as shown in Figure 1.When the elevator is run, by judging that the state of Room door lock detection terminal X26 and car door lock detection terminal X27 judges the state of Room door lock and car door lock.When gate is opened time, Room door is opened by the driving device between gate and Room door and the interlock of door cutter.In operational process, Room door switch and the normally closed expression hoistway door of car door lock switch and gate are closed condition, and safety return circuit closes, then elevator normally runs.If Room door lock or car door lock disconnect, as door machine et out of order, when gate is opened, elevator device can quote the fault that corresponding door lock disconnects, and safety return circuit disconnects, and elevator stops ladder to ensure passenger safety in elevator.

Although the scheme that existing door lock detects can detect door lock state when elevator runs, car door lock cannot be detected by the problem of short circuit.Once car door lock is by short circuit, with regard to exist gate open and elevator can also normally run ladder risk.Now, passenger just likely faces the danger of directly contact hoistway, thus brings very large harm to personal safety.

Utility model content

The technical problems to be solved in the utility model is, cannot detect car door lock by short circuit for existing door lock detection scheme, and exist gate open and elevator can also normally run ladder risk, a kind of testing circuit of door lock of elevator is provided.

The technical scheme that the utility model technical solution problem adopts is the testing circuit providing a kind of door lock of elevator, comprises master control board and safety return circuit, wherein, described master control board is provided with Room door lock detection terminal and car door lock detection terminal; The end of described safety return circuit has the multiple Rooms door switch and multiple car door lock switch that are connected in series to described gate detection terminal, and the end of described multiple Rooms door switch is also connected to Room door lock detection terminal, it is characterized in that, this testing circuit is also included in the switch of sealing up a door that elevator stops when opening the door and Room door switch, car door lock switch close simultaneously; One end of described switch of sealing up a door is connected to the head end of Room door switch, the other end is connected to described car door lock detection terminal on described master control board.

In the testing circuit of above-mentioned door lock of elevator, described in switch of sealing up a door be a relay.

In the testing circuit of above-mentioned door lock of elevator, described master control board is also provided with safety detection terminal, and described safety detection connecting terminals receives the end of described safety return circuit.

Implement the testing circuit of door lock of elevator of the present utility model, when elevator stops ladder enabling, effectively can detect that whether elevator cage door lock is by the problem of short circuit, and then avoid that gate is opened and elevator normally can also run the risk of ladder, thus ensure and take the personal safety of elevator personnel.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of the detection of Room door lock and car door lock in existing elevator device.

Fig. 2 is the circuit diagram of the testing circuit embodiment of door lock of elevator of the present utility model.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 2, be the circuit diagram of testing circuit embodiment of door lock of elevator of the present utility model.With reference to figure 2, this testing circuit 100 comprises safety return circuit (in figure non-label), and wherein, the end of this safety return circuit has the multiple Room door switch (1DS, 2DS ... and multiple car door lock switch (GS1, GS2) nDS)

In the present embodiment, this testing circuit 100 also comprises master control board 110, master control board 110 is provided with safety detection terminal X25, Room door lock detection terminal X26, car door lock detection terminal X27 and detects common port XMC.The multiple Room door switch (1DS, 2DS ... nDS) and multiple car door lock switch (GS1, GS2) be connected in series to gate detection terminal X27, the multiple Room door switch (1DS, 2DS ... nDS) end is also connected to Room door lock detection terminal X26, and safety detection terminal X25 is connected to the end of safety return circuit.

In the present embodiment, this testing circuit is also included in elevator and stops when opening the door and the Room door switch (1DS, 2DS ... nDS) switch 130 of sealing up a door that, car door lock switch (GS1, GS2) is simultaneously closed, wherein, seal up a door that one end of switch 130 is connected to the head end of Room door switch, the other end is connected to car door lock detection terminal X26 on master control board.Further, in the present embodiment, switch 130 of sealing up a door is a relay.

With reference to figure 2, when elevator stops enabling, relay, Room door switch and car door lock switch close, when car door lock GS1 and GS2 is by short circuit, now, car door lock detection terminal X27 is equal with the electromotive force of safety detection terminal X25, then master control board 110 detects that car door lock detection terminal X27 inputs effectively, simultaneously, because Room door lock is normal, electric current from node 140 successively through safety return circuit contact 120 and Room door lock (1DS, 2DS ... nDS) to Room door lock detection terminal X26, then Room door lock detection terminal X26 inputs effectively, therefore, after elevator stops enabling, if master control board 110 detects that in Preset Time car door lock detection terminal X27 and Room door lock detection terminal X26 inputs effectively simultaneously, then car door lock is by short circuit, now carry out fault cues, when car door lock GS1 or GS2 is not by short circuit, when elevator stops enabling, electric current from node 140 successively through safety return circuit contact 120, Room door lock (1DS, 2DS ... nDS) and car door lock GS1 and GS2 to car door lock detection terminal X27, then car door lock detection terminal X27 inputs effectively, now, open the door because elevator stops, it is invalid that Room door lock detection terminal X26 inputs, therefore, after elevator stops enabling, if when master control board 110 detects that in Preset Time the state of car door lock detection terminal X27 and Room door lock detection terminal X26 is contrary, then car door lock is not by short circuit.

It should be noted that, switch 130 of sealing up a door only stops to open the door in 1 second after putting in place at elevator and exports, and stops exporting after 1 second, therefore detect control at this moment between in section, meanwhile, do not affect the detection of other functions.

Summary, the testing circuit of door lock of elevator of the present utility model, when elevator stops ladder enabling, to be sealed up a door output by Control, and by judging the state of car door lock detection terminal X27 and Room door lock detection terminal X26, and then effectively can detect that whether elevator cage door lock is by the problem of short circuit, avoid gate open and elevator can also normally run ladder risk.Meanwhile, the testing circuit of door lock of elevator is simple, detects simple.

The above; be only the utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1. a testing circuit for door lock of elevator, comprises master control board and safety return circuit, wherein, described master control board is provided with Room door lock detection terminal and car door lock detection terminal; The end of described safety return circuit has the multiple Rooms door switch and multiple car door lock switch that are connected in series to described gate detection terminal, and the end of described multiple Rooms door switch is also connected to Room door lock detection terminal, it is characterized in that, this testing circuit is also included in the switch of sealing up a door that elevator stops when opening the door and Room door switch, car door lock switch close simultaneously; One end of described switch of sealing up a door is connected to the head end of Room door switch, the other end is connected to described car door lock detection terminal on described master control board.

2., according to the testing circuit of door lock of elevator described in claim 1, it is characterized in that, described in switch of sealing up a door be a relay.

3. according to the testing circuit of door lock of elevator described in claim 2, it is characterized in that, described master control board is also provided with safety detection terminal, and described safety detection connecting terminals receives the end of described safety return circuit.