CN206705428U - A kind of elevator safety loop detects circuit - Google Patents

A kind of elevator safety loop detects circuit Download PDF

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Publication number
CN206705428U
CN206705428U CN201621340088.2U CN201621340088U CN206705428U CN 206705428 U CN206705428 U CN 206705428U CN 201621340088 U CN201621340088 U CN 201621340088U CN 206705428 U CN206705428 U CN 206705428U
Authority
CN
China
Prior art keywords
lock loop
loop
door lock
hall door
elevator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201621340088.2U
Other languages
Chinese (zh)
Inventor
谢志威
王小燕
陈赋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XJ Schindler Xuchang Elevator Co Ltd
XJ Elevator Co Ltd
Original Assignee
XJ Elevator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XJ Elevator Co Ltd filed Critical XJ Elevator Co Ltd
Priority to CN201621340088.2U priority Critical patent/CN206705428U/en
Application granted granted Critical
Publication of CN206705428U publication Critical patent/CN206705428U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of elevator safety loop to detect circuit, including elevator main control board and elevator safety loop, the elevator main control board is provided with ARM chips, the end of the elevator safety loop is serially connected with hall door lock loop and gate lock loop, and lead to safety return circuit detection terminal, hall door lock loop detection terminal, the end of the gate lock loop is connected with the master control borad, and hall door lock loop both ends are also parallel with relay;Safety return circuit detection terminal is connected by current-limiting resistance and optocoupler with the ARM chips, and hall door lock loop detection terminal is connected by current-limiting resistance and optocoupler with the ARM chips, and the end of gate lock loop is connected by current-limiting resistance and optocoupler with the ARM chips.The utility model can realize to safety return circuit, hall door lock loop, gate lock loop working condition monitoring, can find whether hall door lock loop, gate lock loop are shorted in time, ensure the safe for operation of elevator.

Description

A kind of elevator safety loop detects circuit
Technical field
It the utility model is related to elevator safety control technology, especially a kind of inspection for the detection of elevator safety loop short circuit Slowdown monitoring circuit.
Background technology
With increasing use of the elevator in life, the safety problem of elevator turns into emphasis of concern. In existing apparatus for controlling elevator, hall door lock-switch and car door lock switch the end for being connected on safety return circuit, when elevator is run When, judge the state of hall door lock and car door lock by judging the state of hall door lock detection terminal and car door lock detection terminal.When When gate is opened, hall door is opened by the transmission device between gate and hall door and the linkage of door knife.In running In, hall door lock-switch and the normally closed expression hoistway door of gate lock-switch and gate are closed mode, and safety return circuit closure, elevator is just Often operation;If hall door lock or car door lock disconnect, as door machine breaks down, when gate is opened, elevator device can quote corresponding door The failure disconnected is locked, safety return circuit disconnects, and elevator is out of service to ensure passenger safety in elevator.Although existing door lock detection Door lock state of scheme when can detect elevator operation, but can not detect whether car door lock is shorted.In elevator maintenance people Member is when being safeguarded or overhauled to elevator, in order to it is easy to operate would generally be by elevator door safety loop short circuit, if attendant The shorting stub of dismounting hall door lock or car door lock is forgotten after maintenance terminates, hall door lock, car door lock failure can be caused, both elevator door is pacified Full loop fails, and thus can cause security incident, is unfavorable for ensureing the personal safety of passenger.
In order to overcome above mentioned problem, Chinese patent CN204737529U discloses a kind of detection circuit of door lock of elevator, leads to The closure door being closed at hall door lock-switch, gate lock-switch when being arranged on door-opened elevator is crossed to switch, when elevator stops ladder enabling, Energy effective detection goes out the problem of whether elevator cage door lock is shorted.But according to new national standard GB7588.1 requirement, the layer of elevator Door can not be bypassed simultaneously with gate loop(Short circuit), technical scheme disclosed in the patent document do not meet relevant regulations;In addition, Technical scheme disclosed in the patent document, due to closure door switch while short circuit hall door lock-switch and gate lock-switch, it is impossible to effectively Which is shorted in detection hall door lock-switch, gate lock-switch, is unfavorable for confirming elevator faults reason;Detection in the program Point is directly connected with elevator main control board, easy apparatus failure, poor reliability.
Utility model content
The utility model provides a kind of elevator safety loop detection circuit, for detecting gate in elevator door safety loop Whether lock, hall door lock are shorted.
In order to solve the above problems, the utility model provides a kind of elevator safety loop detection circuit, including elevator master control Plate and elevator safety loop, the elevator main control board are provided with ARM chips, and the end of the elevator safety loop is serially connected with hall door Lock loop and gate lock loop, the end of the elevator safety loop have the safety return circuit test side being connected with the master control borad Son, the end of the hall door lock loop have the hall door lock loop detection terminal being connected with the master control borad, and the car door lock is returned The end on road is connected with the master control borad, and the hall door lock loop both ends are also parallel with relay, the live wire of the relay Circle is connected with the ARM chips;The safety return circuit detection terminal is connected by current-limiting resistance and optocoupler with the ARM chips, The hall door lock loop detection terminal is connected by current-limiting resistance and optocoupler with the ARM chips, the end of the gate lock loop End is connected by current-limiting resistance and optocoupler with the ARM chips.
Elevator safety loop detection circuit provided by the utility model also has following technical characteristic:
Further, the hall door lock loop includes multiple hall door lock-switch being sequentially connected in series, the gate lock loop bag Include multiple gate lock-switch being sequentially connected in series.
The utility model has the advantages that:By setting the safety return circuit detection terminal being connected with master control borad, the Room The end of loop of the door lock detection terminal, gate lock loop, and in the both ends parallel connection relay K1 of hall door lock loop, it is each by detecting The electric potential signal of detection terminal, realize to safety return circuit, hall door lock loop, gate lock loop working condition monitoring, can Find whether hall door lock loop, gate lock loop are shorted in time;The current-limiting resistance that is connected between detection terminal and ARM chips and Optocoupler, it can prevent from detecting voltage, electric current in circuit and ARM chips are impacted, ensure control chip in elevator main control board Electrical safety.Specifically, the electric current of each test point is connected by resistance with the input of optocoupler, light-coupled isolation output safety On-off model sent through output end to elevator main controller, current-limiting resistance can avoid optocoupler receive excess load load and cause Damage, optocoupler are isolated to input signal, complete the conversion of electricity-light-electricity, so as to play the work of input, output, isolation With there are good electrical isolation capabilities and antijamming capability, ensure the accuracy of collection signal.
Brief description of the drawings
Fig. 1 is that the elevator safety loop of the utility model embodiment detects the structural representation of circuit.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not rushing In the case of prominent, the feature in embodiment and embodiment in the utility model can be mutually combined.
In one embodiment of elevator safety loop of the present utility model detection circuit as shown in Figure 1, the elevator safety Loop detection circuit includes elevator main control board 10 and elevator safety loop 20, and the elevator main control board is provided with ARM chips, elevator The end of safety return circuit 20 is serially connected with hall door lock loop 30 and gate lock loop 40, and the end of elevator safety loop 20 has and master The connected safety return circuit detection terminal 21 of plate 10 is controlled, there is the hall door being connected with master control borad 10 to lock back for the end of hall door lock loop 30 Road detection terminal 31, the end 41 of gate lock loop 40 are connected with master control borad 10, and the both ends of hall door lock loop 30 are also parallel with relay Device K1, relay K1 hot-wire coil are connected with the ARM chips;Safety return circuit detection terminal 11 passes through current-limiting resistance R1 and light Coupling 11 is connected with the ARM chips, and the hall door lock loop detection terminal passes through current-limiting resistance R1 and optocoupler 11 and the ARM cores Piece is connected, and the end of the gate lock loop is connected by current-limiting resistance R1 and optocoupler 11 with the ARM chips.In the embodiment Elevator safety loop detection circuit, by set be connected with master control borad safety return circuit detection terminal, hall door lock loop detection The end of terminal, gate lock loop, and in the both ends parallel connection relay K1 of hall door lock loop, by the electricity for detecting each detection terminal Position signal, realize to safety return circuit, hall door lock loop, gate lock loop working condition monitoring, hall door can be found in time Whether lock loop, gate lock loop are shorted;The current-limiting resistance and optocoupler connected between detection terminal and ARM chips, can be to prevent Voltage, the electric current only detected in circuit impacts to ARM chips, ensures the electrical safety of control chip in elevator main control board. Specifically, the electric current of each test point is connected by resistance with the input of optocoupler, the switching value letter of light-coupled isolation output safety Number sent through output end to elevator main controller, current-limiting resistance can avoid optocoupler from receiving excess load load and cause to damage, optocoupler Input signal is isolated, completes the conversion of electricity-light-electricity, so as to play a part of input, output, isolation, is had good Electrical isolation capabilities and antijamming capability, ensure collection signal accuracy.
In the above-described embodiments, elevator safety loop detection circuit also has following technical characteristic:Hall door lock loop 30 wraps Multiple hall door lock-switch being sequentially connected in series are included, gate lock loop 40 includes multiple gate lock-switch being sequentially connected in series.Specifically, Hall door lock-switch, gate lock-switch determine according to the quantity of floor.
Elevator safety loop detection circuit in above-described embodiment, the ARM chips on elevator main control board 10 pass through current limliting electricity Resistance, optocoupler respectively with safety return circuit detection terminal 21, hall door lock loop detection terminal 31, gate lock loop 40 the phase of end 41 Even, by detect safety return circuit detection terminal 21, hall door lock loop detection terminal 31, gate lock loop 40 end 41 current potential Signal judges the working condition of elevator safety loop 20, hall door lock loop 30 and gate lock loop 40, specifically, elevator master Control plate detects whether elevator opens the door in place first, if opened the door in place, the electric potential signal of detection safety return circuit detection terminal 21 is No is high potential, and the electric potential signal of safety return circuit detection terminal 21 is not high potential, can determine that terraced safety return circuit 20 is detected or connected Connect failure;The electric potential signal of safety return circuit detection terminal 21 is high potential, then detects the current potential of hall door lock loop detection terminal 31 Signal;If the electric potential signal of hall door lock loop detection terminal 31 is high potential, it can determine that hall door lock loop 30 is shorted;If The electric potential signal of hall door lock loop detection terminal 31 is low potential, then detects the electric potential signal of the end 41 of gate lock loop 40; If the electric potential signal of the end 41 of gate lock loop 40 is high potential, it can determine that the high voltage detection of end 41 is problematic, this When ARM chip controls relays K1 closure;The current potential letter of hall door lock loop detection terminal 31 is detected after relay K1 closures again Number, if the electric potential signal of hall door lock loop detection terminal 31 is low potential, illustrate that relay K1 is damaged, if hall door lock loop The electric potential signal of detection terminal 31 is high potential, then the electric potential signal of end 41 is detected again, if now(Relay K1 is closed Afterwards)The electric potential signal of end 41 is high potential, then can determine that gate lock loop 40 is shorted.Thus can to terraced safety return circuit 20, The working condition of hall door lock loop 30 and gate lock loop 40 is detected, and detects hall door lock loop in time, gate lock loop is It is no to be shorted, ensure the safe for operation of elevator.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model, rather than its limitations; Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that: It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc. With replacement;And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology The spirit and scope of scheme.

Claims (2)

1. a kind of elevator safety loop detects circuit, including elevator main control board and elevator safety loop, on the elevator main control board Provided with ARM chips, the end of the elevator safety loop is serially connected with hall door lock loop and gate lock loop, it is characterised in that institute The end for stating elevator safety loop has the safety return circuit detection terminal being connected with the master control borad, the end of the hall door lock loop End is with the hall door lock loop detection terminal being connected with the master control borad, the end of the gate lock loop and the master control borad phase Even, the hall door lock loop both ends are also parallel with relay, and the hot-wire coil of the relay is connected with the ARM chips;Institute State safety return circuit detection terminal by current-limiting resistance and optocoupler with the ARM chips to be connected, the hall door lock loop detection terminal Be connected by current-limiting resistance and optocoupler with the ARM chips, the end of the gate lock loop by current-limiting resistance and optocoupler with The ARM chips are connected.
2. elevator safety loop according to claim 1 detects circuit, it is characterised in that the hall door lock loop includes more The individual hall door lock-switch being sequentially connected in series, the gate lock loop include multiple gate lock-switch being sequentially connected in series.
CN201621340088.2U 2016-12-08 2016-12-08 A kind of elevator safety loop detects circuit Expired - Fee Related CN206705428U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621340088.2U CN206705428U (en) 2016-12-08 2016-12-08 A kind of elevator safety loop detects circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621340088.2U CN206705428U (en) 2016-12-08 2016-12-08 A kind of elevator safety loop detects circuit

Publications (1)

Publication Number Publication Date
CN206705428U true CN206705428U (en) 2017-12-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621340088.2U Expired - Fee Related CN206705428U (en) 2016-12-08 2016-12-08 A kind of elevator safety loop detects circuit

Country Status (1)

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CN (1) CN206705428U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110562811A (en) * 2019-09-12 2019-12-13 苏州汇川技术有限公司 Safety loop state detection device and elevator system
CN113148795A (en) * 2021-01-19 2021-07-23 亚洲富士电梯股份有限公司 Elevator abnormal operation alarm control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110562811A (en) * 2019-09-12 2019-12-13 苏州汇川技术有限公司 Safety loop state detection device and elevator system
CN113148795A (en) * 2021-01-19 2021-07-23 亚洲富士电梯股份有限公司 Elevator abnormal operation alarm control system
CN113148795B (en) * 2021-01-19 2022-07-26 亚洲富士电梯股份有限公司 Elevator abnormal operation alarm control system

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171205

Termination date: 20181208