CN206705428U - A kind of elevator safety loop detects circuit - Google Patents
A kind of elevator safety loop detects circuit Download PDFInfo
- 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
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- CN
- China
- Prior art keywords
- lock loop
- loop
- door lock
- hall door
- elevator
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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
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.
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
ID=60471979
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)
| Country | Link |
|---|---|
| CN (1) | CN206705428U (en) |
Cited By (2)
| 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 |
-
2016
- 2016-12-08 CN CN201621340088.2U patent/CN206705428U/en not_active Expired - Fee Related
Cited By (3)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |