CN2181489Y - Elevator door safety interlocking protector - Google Patents
Elevator door safety interlocking protector Download PDFInfo
- Publication number
- CN2181489Y CN2181489Y CN 93245634 CN93245634U CN2181489Y CN 2181489 Y CN2181489 Y CN 2181489Y CN 93245634 CN93245634 CN 93245634 CN 93245634 U CN93245634 U CN 93245634U CN 2181489 Y CN2181489 Y CN 2181489Y
- Authority
- CN
- China
- Prior art keywords
- door
- circuit
- elevator
- mouth
- flop
- 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
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- Elevator Door Apparatuses (AREA)
Abstract
The utility model discloses a protector for safely interlocking an elevator door. A door-opening detection circuit (1), a door-closing detection circuit (2), a flip-flop circuit (3) and a see-saw circuit (4) are connected to form the utility model. Through the signal of a door-closing detection circuit I, an elevator can only starts to operate after the door of the elevator is completely closed; an accident that people are injured under the door-opening operation of the elevator, and the accident caused by the misoperation of the control circuit of the elevator caused by the people or the malfunctions of components is avoided; besides, the personal safety of passengers is ensured.
Description
A kind of elevator door interlocking protector belongs to the logic circuit application technical field.
Well-known is the convenient elevator that is equiped with that passes through without exception in skyscraper.On the door that every layer of elevator imported and exported, a door interlock switch TMK(all is housed also claims Room door switch).When certain layer of elevator door opened, the electrical contact TMKn of the door interlock switch on this layer door was an off-state, had only the electrical contact of this switch when elevator door is closed fully just to be on-state; And the electrical contact TMK of the door interlock switch on each layer elevator door
1-nAll be connected in series and form drive gate interlock relay MSJ behind the gate interlock loop.All elevator closes behind the door as seen from Figure 1, gate interlock relay MSJ adhesive, its normal opened contact MSJ1 is connected in the operating loop of elevator, have only as seen from Figure 2 when gate interlock relay MSJ adhesive elevator could start with the operation, as long as there is an elevator door to open under the normal circumstances, gate interlock loop TMK
1-nBe and open circuit, thereby gate interlock relay MSJ can not adhesive forbids the starting and the operation of elevator.But because the short trouble of components and parts contact or forget when restoring because of overhauling artificial short circuit gate interlock loop, can cause gate interlock relay MSJ adhesive equally even door interlock switch is housed on the elevator door, make elevator door in opened condition or the passenger when coming in and going out elevator start suddenly so that cause elevator incision and passenger to fall into the casualty accident of hoistway.
Basic point of departure of the present utility model provides a kind of fender guard; it is made up of logic gates; the normal opened contact BJ1 of protective relay BJ and gate interlock relay normally open contact MSJ1 are serially connected in jointly and have only the equal closed elevator of two point just can move in the elevator operating loop in this device; as shown in Figure 3; it is not closed to guarantee that with logic gates elevator door does not cut out BJ1 simultaneously; even various like this short circuit phenomenon make MSJ1 that the possibility of adhesive be arranged; because BJ1 opens circuit; elevator still can not start, thereby actv. has been eliminated the elevator harm that operation brings for the passenger personal safety of opening the door.
The utility model is realized by following technical scheme:
A kind of elevator door interlocking protector is by the testing circuit 1 that opens the door; the testing circuit 2 of closing the door; flip-flop circuit 3; see-saw circuit 4 is formed, and the testing circuit 1 that wherein opens the door is connected with logic gates by differential shaping circuit and forms, and the testing circuit 2 of closing the door is by differential shaping circuit; differential circuit; OR circuit connects and to form, and flip-flop circuit 3 is connected by d type flip flop and forms, and see-saw circuit 4 is connected with relay by phase inverter and forms.
The described testing circuit 1 that opens the door is by resistance R
11, R
12, cond C
11, diode D
11, with two-stage phase inverter U
2, U
3The differential shaping circuit that constitutes reaches by phase inverter U
1And by with door U
6Or door U
7The logic gates of forming is formed by connecting, and the differential shaping circuit mouth in a point and decision circuit with door U
6An input end link to each other, with door U
6Mouth and phase inverter U
1Mouth formed or the door U
7Two input ends, or the door U
7Mouth be connected to d type flip flop U in the flip-flop circuit 3
10Put d type flip flop U in " 1 " input end one ' S ' end flip-flop circuit 3
9Mouth " Q
9" be and door U
6Another input end.
The described testing circuit 2 of closing the door is by resistance R
21, R
22Capacitor C
21, diode D
21With the two poles of the earth phase inverter U
4, U
5The differential shaping circuit that constitutes reaches by resistance R
31, R
32, capacitor C
31Differential circuit that constitutes and or door U
8Form, and differential shaping circuit mouth P, the m end and the differential circuit mouth n of the normal opened contact of the relay K of opening the door MJ is or door U
8Three input end U
8Mouth be connected to the putting of flip-flop circuit 3 " O " end one " R " end.
Described flip-flop circuit 3 is by two d type flip flop U
9, U
10Form wherein U
9" S " be connected to the normal opened contact I of closed relay GMJ
3, U
9, U
10" R " end be connected to after being in parallel or door U
8Mouth, U
10S be connected to or the door U
7Mouth, U
9Mouth " Q
9" be connected to and door U
6Another input end.
Described see-saw circuit 4 is by phase inverter U
11Reach safety guard-safeguard relay BJ and be formed by connecting, and phase inverter U
11Input end and d type flip flop U
10Mouth " Q
10" end connects, U
11Ausgang be connected with an end of safety guard-safeguard relay BJ coil, the normal opened contact BJ1 of BJ is concatenated in the elevator control circuit.
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 elevator door interlocking switch electric terminal connects scheme drawing.
The circuit diagram of Fig. 2 elevator door interlocking relay control elevator operation.
Fig. 3 installs the elevator control circuit scheme drawing behind the protector.
Fig. 4 elevator door interlocking protector electrical schematic diagram.
Fig. 1--in 4:
TMK
1-n-elevator door interlocking switch electric terminal,
1-nBe the building number of plies; elevator door interlocking switch TMK is installed on the elevator door; MSJ--gate interlock relay; be installed in the elevator control loop; MSJ1; 2--gate interlock relay normally open contact; SC; the contactless switch that XC--control elevator moves up and down, BJ--safety guard-safeguard relay is installed in the protector circuit; BJ1-safety guard-safeguard relay normally open contact; be installed in the elevator control loop, JXJ1-overhauls relay normally closed contact, disconnects during maintenance; GMJ1-closed relay normal opened contact; elevator is closed at closing time, the KMJ1-relay normally open contact that opens the door, closure when elevator opens the door.
U
1-U
5And U
11Be inverting amplifier, U
6For with door, U
7, U
8For or the door, U
9, U
10Be d type flip flop, make bistable circuit and use.
Fig. 1, Fig. 2 are for existing elevator control principle sketch, as the electric terminal TMK that is installed on the door interlock switch TMK on each layer elevator door
1-nAll closures represent that promptly each layer elevator door all cut out, and gate interlock relay MSJ gets electric, and its normal opened contact MSJ1 closure is moved by elevator up-down.Its shortcoming as previously mentioned might be because the incident that the fault generation elevator of artificial or element opens the door and moves.
After Fig. 3 represented to install the utility model additional, the normal opened contact BJ1 of its safety guard-safeguard relay BJ was serially connected with in the elevator control loop, had only the equal closed elevator of MKJ, BJ1 just can move.Fig. 4 represents the utility model electrical schematic diagram, and it is judged if each layer elevator door all cut out gate interlock electrical equipment MSJ adhesive, MSJ by logic gates
2Connect to produce a positive pulse safety guard-safeguard relay BJ to be got under cooperating electric closing gate signal from being disconnected to, its normal opened contact BJ1 adhesive, elevator can be in safe operation under the state of closing the door.Its concrete principle of work is as follows:
I as seen from Figure 4
1--I
4Be the outward sign input end, COM is the public end of outward sign input end, Q
1Q
2Be the mouth of safety guard-safeguard relay normally open contact BJ1, the power supply of entire circuit is direct current 12V.
By as can be known aforementioned, no matter be that human element or element fault all can make the gate interlock circuit phenomenon that is short-circuited, the dangerous situation that elevator opens the door and moves just might take place as long as gate interlock relay MSJ gets electric adhesive.Safety contact BJ1 answers adhesive to connect the elevator control loop when therefore requiring the utility model normally to move (closing behind the door) and maintenance at elevator, and safety contact BJ1 should disconnect when elevator door opening state, elevator workman rigidly connect the energize beamhouse operation and withdraw from inspecting state, makes elevator be in halted state and treats that the passenger enters and closes and change normal operation behind the door over to.
When elevator normally moves in conjunction with Fig. 4 closed relay GMJ closure at first as can be seen, its normal opened contact GMJ1 closure, input end I
3There is a positive pulse to send into d type flip flop U
9Put " 1 " end " S " end, make its input end " Q
9" being " 1, " signal, this signal are sent into and door U
6B end open ready for it.Simultaneously as elevator door from be opened to close after, elevator door interlocking switch electric terminal TMKn closure, gate interlock relay MSJ gets electric, its normal opened contact MSJ2 is from being disconnected to connection, input end I
1Obtain a positive pulse signal, through C
11, R
11, R
12, D
11, U
2, U
3The differential shaping circuit that constitutes with door U
6An input end a obtain the positive pulse signal of a certain amplitude because the adhesive of closed relay GMJ1, with door U
6Another input end b be high potential " 1 ", this moment and door U
6Mouth " C " output high potential, even door U
7An input end C be high potential, it makes U
7Mouth " e " be high potential, this signal input d type flip flop U
10Put " 1 " end " S " end, make U
10Mouth " Q
10" be high potential, by inverting amplifier U
11After, obtain active potential at its Ausgang, it is electric that safety guard-safeguard relay BJ is got, its normal opened contact BJ1 adhesive, promptly behind the elevator door Close All since the closure of gate interlock relay MSJ2 make the BJ1 adhesive as shown in Figure 3 elevator can normally move.
Operation when this protector allows the elevator maintenance, elevator need run to the guilty culprit layer when barrier took place for some reason, so safety relay BJ adhesive guarantees that elevator normally moves, maintenance relay J XJ adhesive its normally closed contact JXJ1 and 12V power supply disconnect during maintenance, I
2Be active potential, because U
1Inverting function, making its mouth d is high potential, or the door U
7Mouth e is a high potential, BJ adhesive contact BJ1 closure as a same reason, and elevator can move.
For elevator is normally operated under following three kinds of situations, safety guard-safeguard relay BJ should disconnect.
1. the elevator maintenance finishes to the operation BJ1 that closes the door that guarantees elevator must disconnect, and overhauls relay J XJ this moment and discharges, and contact JXJ1 is by being disconnected to closure, at I
2End forms a positive pulse through R
21, R
22, C
21, D
21And phase inverter U
4, U
5The differential shaping circuit that is formed by connecting forms high potential at the P point, makes or door U
8Mouth R is a high potential, and this signal is sent into U
10Put that " O " end--R end makes U
10Q
10End is for active potential, through U
11Anti-phase back obtains high potential at the f point, and safety relay BJ no current passes through, and BJ1 disconnects.
2. BJ1 should disconnect when elevator opened the door, and elevator is out of service, and the relay tip KMJ1 closure of opening the door this moment is at I
4End forms positive pulse, makes or door U
8The output high potential triggers U
10Put " O " end R end, it is ready that BJ1 is broken as the elevator door operation of closing the door as a same reason.
3. at first to connect the protector power supply when elevator operation workman prepares to enter escalator and begins to transport the passenger, make elevator out of service to cut off BJ1, during the VOD power connection or door U
8Input end n because R
31, C
31, R
32The differential circuit that constitutes and form a positive pulse, same reason is through U
8, U
10, U
11Produce high potential and BJ1 is disconnected at f.
Do not influence elevator behind the utility model and open by above installing additional as can be seen, close the door, normal operation such as maintenance, only at elevator door when if there is short circuit phenomenon in the gate interlock loop of door interlock switch in opened condition the time, because this moment, gate interlock relay MSJ was in attracting state always, the elevator starting operation that can open the door in existing elevator control loop, from be opened to the process of closing, utilizing MSJ from the MSJ2 that is discharged into adhesive and causes from the state variation (being positive pulse signal) that is disconnected to connection and cooperate the adhesive of the signal control BJ1 that closes the door that elevator can be moved and install elevator door behind the utility model additional, and the short circuit phenomenon in gate interlock loop can make MSJ2 be in the no positive pulse signal of on-state " I " end always, thereby the BJ1 disconnection, thereby can not moving, elevator do not eliminated the danger that elevator opens the door and moves.
The circuit that can detect and handle elevator open and close gate signal has a lot, all can realize this function as discrete component, integrated circuit, microcomputer software etc.The safety precaution performance that has improved elevator door behind the utility model greatly is installed, stops the open the door generation of interruption of service of elevator.
Claims (5)
1, a kind of elevator door interlocking protector; it is characterized in that: by the testing circuit that opens the door (1); the testing circuit (2) of closing the door, flip-flop circuit (3), see-saw circuit (4) is formed; the testing circuit (1) that wherein opens the door is connected with logic gates by differential shaping circuit and forms; close the door testing circuit (2) by differential shaping circuit, differential circuit, the OR circuit connection forms; flip-flop circuit is connected by d type flip flop and forms, and see-saw circuit (4) is connected with relay by phase inverter and forms.
2, protector as claimed in claim 1 is characterized in that: the testing circuit that opens the door (1) is by resistance R
11R
12, cond C
11, diode D
11, with two-stage phase inverter U
2, U
3The differential shaping circuit that constitutes reaches by phase inverter U
1And by with door U
6Or door U
7The logic gates of forming is formed by connecting, and the differential shaping circuit mouth in a point and decision circuit with door U
6An input end link to each other, with door U
6Mouth and phase inverter U
1Mouth formed or the door U
7Two input ends, or the door U
7Mouth be connected to d type flip flop U in the flip-flop circuit (3)
10Put " 1 " input end one ' S ' end, the d type flip flop U in the flip-flop circuit (3)
9Mouth " Q
9" be and door U
6Another input end.
3, protector as claimed in claim 1 is characterized in that: the testing circuit of closing the door (2) is by resistance R
21, R
22Capacitor C
21With diode D
21With the two poles of the earth phase inverter U
4, U
5The differential conformality circuit that constitutes reaches by resistance R
31, R
32, capacitor C
31Differential circuit that constitutes and or door U
8Form, and differential conformality circuit output end P, the m end and the differential circuit mouth n of the normal opened contact of the relay K of opening the door MJ is or door U
8Three input ends, U
8Mouth be connected to the putting of flip-flop circuit (3) " O " end one " R " end.
4, protector as claimed in claim 1 is characterized in that: flip-flop circuit (3) is by two d type flip flop U
9, U
10Form wherein U
9" S " be connected to the normal opened contact I of closed relay GMJ
3, U
9, U
10" R " end be connected to after being in parallel or door U
8Mouth, U
10S be connected to or the door U
7Mouth U
9Mouth " Q
9" be connected to and door U
6Another input end.
5, protector as claimed in claim 1 is characterized in that: see-saw circuit (4) is by phase inverter U
11Reach safety guard-safeguard relay BJ and be formed by connecting, and phase inverter U
11Input end and d type flip flop U
10Mouth " Q
10" end connects, U
11Ausgang be connected with an end of safety guard-safeguard relay BJ coil, the normal opened contact BJ1 of BJ is concatenated in the elevator control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245634 CN2181489Y (en) | 1993-12-02 | 1993-12-02 | Elevator door safety interlocking protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93245634 CN2181489Y (en) | 1993-12-02 | 1993-12-02 | Elevator door safety interlocking protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2181489Y true CN2181489Y (en) | 1994-11-02 |
Family
ID=33818529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93245634 Expired - Fee Related CN2181489Y (en) | 1993-12-02 | 1993-12-02 | Elevator door safety interlocking protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2181489Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391818C (en) * | 2005-03-31 | 2008-06-04 | 上海新时达电气有限公司 | Elevator safety loop capable of implementing door preopening and floor realigning function |
| CN101881268A (en) * | 2010-07-23 | 2010-11-10 | 高德（无锡）电子有限公司 | Circuit structure of interlocking protective device of pump adding system |
| CN101918300A (en) * | 2007-12-21 | 2010-12-15 | 因温特奥股份公司 | Circuit for resetting an elevator safety chain |
| CN102424317A (en) * | 2011-08-18 | 2012-04-25 | 昆山通祐电梯有限公司 | Door interlock short-circuit protection loop for elevator |
| CN103588072A (en) * | 2013-10-31 | 2014-02-19 | 深圳市一兆科技发展有限公司 | Method and system for monitoring opening and closing state of landing door of elevator |
| CN109311630A (en) * | 2016-06-27 | 2019-02-05 | 三菱电机株式会社 | Elevator device |
| CN110407053A (en) * | 2019-07-26 | 2019-11-05 | 上海三菱电梯有限公司 | Elevator controlling detection circuit |
-
1993
- 1993-12-02 CN CN 93245634 patent/CN2181489Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100391818C (en) * | 2005-03-31 | 2008-06-04 | 上海新时达电气有限公司 | Elevator safety loop capable of implementing door preopening and floor realigning function |
| CN101918300A (en) * | 2007-12-21 | 2010-12-15 | 因温特奥股份公司 | Circuit for resetting an elevator safety chain |
| CN101918300B (en) * | 2007-12-21 | 2013-10-16 | 因温特奥股份公司 | Circuit for resetting an elevator safety chain |
| CN101881268A (en) * | 2010-07-23 | 2010-11-10 | 高德（无锡）电子有限公司 | Circuit structure of interlocking protective device of pump adding system |
| CN102424317A (en) * | 2011-08-18 | 2012-04-25 | 昆山通祐电梯有限公司 | Door interlock short-circuit protection loop for elevator |
| CN102424317B (en) * | 2011-08-18 | 2013-12-11 | 昆山通祐电梯有限公司 | Door interlock short-circuit protection loop for elevator |
| CN103588072A (en) * | 2013-10-31 | 2014-02-19 | 深圳市一兆科技发展有限公司 | Method and system for monitoring opening and closing state of landing door of elevator |
| CN109311630A (en) * | 2016-06-27 | 2019-02-05 | 三菱电机株式会社 | Elevator device |
| CN110407053A (en) * | 2019-07-26 | 2019-11-05 | 上海三菱电梯有限公司 | Elevator controlling detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |