CN108483163A - A kind of elevator door lock safety return circuit earth fault demo system - Google Patents
A kind of elevator door lock safety return circuit earth fault demo system Download PDFInfo
- Publication number
- CN108483163A CN108483163A CN201810377871.3A CN201810377871A CN108483163A CN 108483163 A CN108483163 A CN 108483163A CN 201810377871 A CN201810377871 A CN 201810377871A CN 108483163 A CN108483163 A CN 108483163A
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- door lock
- elevator door
- return circuit
- safety return
- earth fault
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- 230000005611 electricity Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000012795 verification Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000005283 ground state Effects 0.000 description 3
- 230000007257 malfunction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
Abstract
The present invention proposes a kind of elevator door lock safety return circuit earth fault demo system, includes mainly：The elevator door lock safety return circuit being set to inside control cabinet, the elevator door lock safety return circuit include：Power supply, air switch, opening or closing of elevator door lock module and the safety return circuit relay module being sequentially connected in series, wherein the opening or closing of elevator door lock module includes：Multiple concatenated opening or closing of elevator door lock, each opening or closing of elevator door lock, the air switch and safety return circuit relay module are connected with one end of earthing switch, the other end of the earthing switch is grounded, by the earth fault for controlling elevator door lock safety return circuit described in the opening or closing of elevator door lock and earthing switch analog demenstration.The present invention simulates elevator running door lock safety return circuit, elevator reviewer and maintenance staff can be given to carry out the universal of safety education and earth fault knowledge, verification and the operation study that can be used for elevator door lock safety return circuit ground fault detection apparatus device simultaneously, have great importance.
Description
Technical field
The present invention relates to elevator detection technique fields, are related to elevator door lock safety return circuit Earth Fault Detection technology, specifically
It is related to a kind of elevator door lock safety return circuit earth fault demo system.
Background technology
Door lock of elevator circuit is very important a member in the numerous control circuits of elevator, its failure can lead to serious thing
Therefore consequence.Largely with old elevator, there are door lock safety return circuit earthing failure hidden danger, the door locks of part elevator in current social
Circuit design is isolated neutral system, and the system is moisture regain weather humidity is big, insulation against ground failure, maintenance mis-wired cause circuit straight
Connect it is equal over the ground under the conditions of, can cause circuit by low potential " "（The metal shell of elevator components）Form closed circuit so that
It is normally closed that elevator control system, which is mistakenly considered door lock of elevator, to start lift car in the case where elevator door is in open state
Lifting, seriously threatens the security of the lives and property of passenger.It is examined and common door lock of elevator peace in maintenance process in elevator running
Full loop earth-fault detecting method, since maloperation is easy initiation blowout, elevator control system circuit board is burnt out
Hidden danger.
Therefore a kind of elevator door lock safety return circuit earth fault demo system is designed to return safely to simulate elevator running door lock
Road can give elevator reviewer and maintenance staff to carry out the universal of safety education and earth fault knowledge, while can be used for elevator
The verification and operation study of door lock safety return circuit ground fault detection apparatus device, have great importance.
Invention content
In view of the deficiencies of the prior art, the present invention proposes a kind of elevator door lock safety return circuit earth fault demo system,
Elevator running door lock safety return circuit ground connection situation can be simulated, each section integrated level is high, objective interface is understandable, simple operation, has
Good practical value can give elevator reviewer and maintenance staff to carry out the universal of safety education and earth fault knowledge, together
When can be used for elevator door lock safety return circuit ground fault detection apparatus device verification and operation study, have great importance.
In order to solve the above technical problems, the technical solution that the present invention takes is：
The present invention proposes a kind of elevator door lock safety return circuit earth fault demo system, including：It control cabinet and is set to described
Elevator door lock safety return circuit inside control cabinet,
The elevator door lock safety return circuit includes：Power supply, air switch, opening or closing of elevator door lock module and the safety being sequentially connected in series are returned
Road relay module, wherein
The opening or closing of elevator door lock module includes：Multiple concatenated opening or closing of elevator door lock, it is each opening or closing of elevator door lock, described
Air switch and safety return circuit relay module are connected with one end of earthing switch, the other end ground connection of the earthing switch,
By the earth fault for controlling elevator door lock safety return circuit described in the opening or closing of elevator door lock and earthing switch analog demenstration.
Further, the power supply includes：Alternating current 220V, direct current 110V and direct current 48V, are carried out by third gear rotary switch
Selection.
Further, the power supply of direct current 110V and direct current 48V are set to the inside of the control cabinet, the power supply of alternating current 220V
It is connected with the power outlet being arranged in control cabinet.
Further, the gear end of the third gear rotary switch is connected with the coil of three supply relays respectively, is used for
Control the electricity that three groups of different contacts of the supply relay select alternating current 220V, direct current 110V different with direct current 48V respectively
The power supply mode of terraced door lock safety return circuit.
Further, the safety return circuit relay module includes：Three safety return circuit relays in parallel, three safety
The coil of circuit relay is connected with the second contact of three supply relays respectively.
Further, the third contact of a supply relay is connected with zero curve, the third of other two supply relay
Contact is connected with ground wire.
Further, the elevator door lock safety return circuit further includes：Resistance, be series at the power supply and safety return circuit after
Between electrical appliance module, the summation of contact resistance and conducting wire self-resistance for simulant elevator door interlock switch.
Further, the safety return circuit relay module is connected by the resistance with one end of earthing switch.
Further, the control cabinet includes：Operation panel, babinet and case lid, wherein
The operation panel is installed on the babinet, and the operation panel is equipped with the corresponding elevator door lock safety return circuit
Earth fault illustrative circuitry figure, the operation panel are equipped with multiple mounting holes, in the elevator door lock safety return circuit
The installation of electric elements；The operation panel is equipped with multiple band lamp button switchs, the opening or closing of elevator door lock and earthing switch
Opening and closing pass through band lamp button switch control；
The box house is equipped with guide rail, for installing safety return circuit relay module and three supply relays, the babinet
It is equipped with hasp and handle；
The case lid is connect by hinge with babinet, and the case lid is equipped with staple, after the case lid closes, passes through the staple
The control cabinet is locked with hasp.
Further, the quantity of the opening or closing of elevator door lock is 4.
Beneficial effects of the present invention include at least：Elevator door lock safety return circuit earth fault demonstration of the present invention system
System can simulate elevator running door lock safety return circuit ground connection situation, each section integrated level is high, objective interface is understandable, simple operation, tool
There is good practical value, elevator reviewer and maintenance staff can be given to carry out the universal of safety education and earth fault knowledge,
Verification and the operation study that can be used for elevator door lock safety return circuit ground fault detection apparatus device simultaneously, have great importance.
Description of the drawings
Fig. 1 is elevator door lock safety return circuit circuit ground malfunction demo system circuit diagram of the present invention.
Fig. 2 is the earth fault illustrative circuitry figure of the elevator door lock safety return circuit of Fig. 1.
Fig. 3 is the normal elevator door lock safety return circuit circuit diagram of ground protection of Fig. 2.
Fig. 4 is the elevator door lock safety return circuit circuit diagram of the first kind ground protection failure of Fig. 2.
Fig. 5 is the elevator door lock safety return circuit circuit diagram of the second class ground protection failure of Fig. 2.
Fig. 6 is control cabinet structural schematic diagram of the present invention.
Fig. 7 is earth fault illustrative circuitry figure when having installed electric elements on operation panel of the present invention.
Fig. 8 is control cabinet internal structure schematic diagram of the present invention.
Wherein, air switch 1, third gear rotary switch 2, power supply 3, power outlet 4, signal lamp 5, operation panel 6, case
Body 7, case lid 8, guide rail 9, hasp 10, handle 11, hinge 12, staple 13, binding post 15, facilities air switch 16, safety air
Switch 17, demo system master switch 18, relay 19, fuse 20, screw 21.
Specific implementation mode
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
It is not intended to limit the present invention.
In order to make those skilled in the art more fully understand technical scheme of the present invention, below to demonstrate four layers of building elevator
It is described in detail for door lock safety return circuit.The embodiments described below is exemplary, and is only used for explaining the present invention, without
It can be interpreted as limitation of the present invention.Particular technique or condition are not specified in embodiment, is retouched according to document in the art
The technology or condition stated are carried out according to product description.
According to an embodiment of the invention, Fig. 1 is elevator door lock safety return circuit circuit ground malfunction demo system of the present invention electricity
Road schematic diagram, Fig. 2 are the earth fault illustrative circuitry figure of the elevator door lock safety return circuit of Fig. 1, and Fig. 6 is present invention control box structure
Schematic diagram, shown in referring to Fig.1,2 and 6, elevator door lock safety return circuit earth fault demo system of the present invention, including：Control
Case and the elevator door lock safety return circuit being set to inside the control cabinet, the elevator door lock safety return circuit include：It is sequentially connected in series
Power supply, air switch, opening or closing of elevator door lock module and safety return circuit relay module J, wherein the opening or closing of elevator door lock mould
Block includes：4 concatenated opening or closing of elevator door lock, respectively：First opening or closing of elevator door lock F1, the second opening or closing of elevator door lock F2,
The both ends of three opening or closing of elevator door lock F3 and the 4th opening or closing of elevator door lock F4, opening or closing of elevator door lock F1, F2, F3 and F4 are connected with 5
Earthing switch：Respectively the first earthing switch K1, the second earthing switch K2, third earthing switch K3, the 4th earthing switch K4 and
5th earthing switch K5, by controlling the opening and closing of the opening or closing of elevator door lock and earthing switch come door lock of elevator described in analog demenstration
The earth fault of safety return circuit.
According to an embodiment of the invention, the air switch is connected with one end of the 6th earthing switch Ka；It is appreciated that
It is that the air switch of the simulation insurance on control panel can simulate the fuse of elevator running door lock safety return circuit, use
Simulate the fusing of the tripping simulation fuse of the air switch of insurance.It is understood that air switch of the present invention also may be used
To be replaced using fuse.
According to some embodiments of the present invention, Fig. 7 is ground connection event when having installed electric elements on operation panel of the present invention
Hinder illustrative circuitry figure, shown in referring to Fig.1,2 and 7, the elevator door lock safety return circuit further includes：Resistance R is series at the electricity
Between source and safety return circuit relay module, for simulant elevator door interlock switch contact resistance and conducting wire self-resistance it is total
With；The safety return circuit relay module is connected by the resistance with one end of the 7th earthing switch Kb.
It is understood that the other end of earthing switch K1, K2, K3, K4, K5, Ka and Kb of the present invention are grounded.
According to an embodiment of the invention, shown in referring to Fig.1,2 and 7, the power supply includes：Alternating current 220V, direct current 110V and
Direct current 48V is selected by third gear rotary switch, wherein the power supply of direct current 110V and direct current 48V are set to the control cabinet
Inside, the power supply of alternating current 220V is connected with the power outlet being arranged in control cabinet.The gear end of the third gear rotary switch
It is connected respectively with the coil of three supply relays, three groups of different contacts for controlling the supply relay select respectively
The power supply mode of alternating current 220V, the direct current 110V elevator door lock safety return circuits different with direct current 48V.More specifically, described three
Supply relay is respectively：First supply relay J1, the second supply relay J2 and third supply relay J3, wherein institute
The the first gear end for stating third gear rotary switch is connected with the coil of the first supply relay J1, and then controls the first supply relay
The break-make of the first normally opened contact J1-1 of J1, the line at the second gear end and the second supply relay J2 of the three gears rotary switch
Circle is connected, and then controls the break-make of the first normally opened contact J2-1 of the second supply relay J2, and third gear end powers with third
The coil of relay J3 is connected, and then controls the break-make of the first normally opened contact J3-1 of third supply relay J3, passes through the party
Formula selects above-mentioned different elevator door lock safety return circuit power supply mode.It is understood that being revolved by the third gear on operation panel
Obstructed elevator door lock safety return circuit power supply mode, respectively alternating current 220V, direct current 110V and direct current 48V may be selected in button switch,
Wherein direct current 110V and direct current 48V is provided by the power supply inside control box.Every time when switching power supply mode, corresponding one is selected
Safety return circuit relay works.
According to an embodiment of the invention, shown in referring to Fig.1, the safety return circuit relay module J includes：Three in parallel
Safety return circuit relay, respectively：First safety return circuit relay J4, the second safety return circuit relay J5, third safety return circuit
The coil of relay J6, three safety return circuit relays are connected with the second contact of three supply relays respectively.More specifically,
The coil of first safety return circuit relay J4 is connected with the second normally opened contact J1-2 of the first supply relay J1, and the second safety is returned
The coil of road relay J5 is connected with the second normally opened contact J2-2 of the second supply relay J2, third safety return circuit relay J6
Coil be connected with the second normally opened contact J3-2 of third supply relay J3, for provide respectively 220V AC relays J4,
110V DC relay J5 and 48V DC relay tri- kinds of safety return circuit relays of J6.If some safety return circuit in J4, J5, J6
When relay coil is powered, electric appliance major loop will be connected, and indicate that lift car is movable.Safety return circuit relay of the present invention
Normally opened contact be in series with signal lamp, light on and off indicate the break-make of safety return circuit relay：Signal lamp is bright, indicates electricity
The coil of safety return circuit relay in terraced door lock safety return circuit is in energized state, and signal lamp, which goes out, indicates door lock of elevator peace
The coil of safety return circuit relay in full loop does not have electric current to pass through.
According to an embodiment of the invention, shown in referring to Fig.1, the third normally opened contact J1-3 and zero of the first supply relay J1
Line（N）It is connected, the third normally opened contact J2-3 and ground wire of the second supply relay J2（G）It is connected, third supply relay J3's
Third normally opened contact J3-3 and ground wire（G）It is connected.
User needs to build various elevator door lock safety return circuits by controlling each switch on-off and connect according to different
Earth fault circuit switches on-off logical state and is indicated by the light on and off state with lamp button switch indicator light.In the following, to this
The several types of invention elevator door lock safety return circuit earth fault presentation process are illustrated as follows.
According to an embodiment of the invention, Fig. 3 is the normal elevator door lock safety return circuit circuit diagram of ground protection of Fig. 2, ginseng
Shown in Fig. 3, in this case, keep Ka disconnections earth-free by controlling corresponding switch on-off on operation panel, Kb is closed, real
The now ground protection of entire safety return circuit.Only when all door interlock switch F1, F2, F3 and F4 are closed, i.e., all elevator doors
The coil of safety return circuit relay J is just powered when all closing, it is ensured that elevator safety operation.When door interlock switch both sides contact connects
When earth fault, i.e. K1, K2, K3, K4 or K5 occur to be closed grounding phenomenon, earthing contact and resistance left side ground contact are led at this time
Logical, safety return circuit relay coil is bypassed, blown fuse（The tripping of corresponding air switch）, safety return circuit relay coil
No power, lift car can not be moved, be played a protective role.For example, if the band button on push panel near K3 is opened
Close K-3（That is K3 is closed）It turns it on so that earth fault to occur on the left of simulant elevator door interlock switch F3, when layer door F1 and F2 are closed
When fuse fuse immediately, there is no open the door walk ladder possibility.
According to an embodiment of the invention, Fig. 4 is the elevator door lock safety return circuit circuit of the first kind ground protection failure of Fig. 2
Figure in this case, disconnects earth-free, Ka is closed with reference to shown in Fig. 4 by controlling the corresponding Kb that switches on-off on operation panel
It closes.By taking circuit shown in simulation drawing 4 as an example, if the band lamp button switch on push panel near K3 is turned it on analog gate
On the right side of lock-switch F2（That is on the left of door interlock switch F3）Unexpected earth fault occurs（K3 is closed）, at this time fuse be bypassed, lose
Safeguard protection acts on.No matter whether opening or closing of elevator door lock F1 and F2 are closed, as long as when opening or closing of elevator door lock F3 and F4 are closed, peace
The coil of full loop relay is powered, and there are elevators to walk terraced risk in first layer or second layer enabling.
According to an embodiment of the invention, Fig. 5 is the elevator door lock safety return circuit circuit of the second class ground protection failure of Fig. 2
Figure, referring to Figure 5, in this case, by control on operation panel it is corresponding switch on-off Ka and Kb all disconnect it is earth-free,
No ground defencive function.Terraced hidden danger of opening the door will be generated when each door interlock switch both sides occur at least 2 points while being grounded at this time.
By taking circuit shown in simulation drawing 5 as an example, the band lamp button switch on push panel near K2 and K4 is turned it on is worked as with simulating
On the right side of opening or closing of elevator door lock F1（That is on the left of opening or closing of elevator door lock F2）Generate unexpected ground connection（That is K2 is closed）, while door lock of elevator is opened
It closes on the right side of F3（That is on the left of opening or closing of elevator door lock F4）Generate unexpected ground connection（That is K4 is closed）When situation, opening or closing of elevator door lock at this time
F2 and F3 are bypassed, and when opening or closing of elevator door lock F1 and F4 are closed, no matter which kind of state opening or closing of elevator door lock F2 or F3 are in, peace
The coil of full loop relay is all powered, and there are elevators to walk terraced risk in the second layer or third layer enabling.
According to an embodiment of the invention, Fig. 6 is control cabinet structural schematic diagram of the present invention, and Fig. 8 is inside control cabinet of the present invention
Structural schematic diagram, with reference to shown in Fig. 6 and 8, the control cabinet includes：Operation panel, babinet and case lid, wherein the operating surface
Plate is installed on by screw on the babinet, and the operation panel is equipped with the ground connection event of the corresponding elevator door lock safety return circuit
Hinder illustrative circuitry figure, the operation panel is equipped with multiple mounting holes, for the electric appliance member in the elevator door lock safety return circuit
The installation of part；The box house is equipped with guide rail, described for installing safety return circuit relay module and three supply relays
Babinet is equipped with hasp and the handle convenient for users to carrying；The case lid is connect by hinge with babinet, is set on the case lid
After having staple, the case lid to close, the control cabinet is locked by the staple and hasp.
According to some embodiments of the present invention, Fig. 7 is ground connection event when having installed electric elements on operation panel of the present invention
Hinder illustrative circuitry figure, with reference to shown in Fig. 7, it is to be understood that the electric elements inside control cabinet pass through conducting wire and operation panel
The connection of upper electric elements, multiple band lamp button switchs that the operation panel is equipped with respectively with 4 opening or closing of elevator door lock
It is connected with 7 earthing switches, operator can control each relay in safety return circuit by the band lamp button switch on control panel
To realize, correspondence switches on-off the break-make of device in elevator door lock safety return circuit earth fault illustrative circuitry, and corresponding indicator light is used in combination
Light on and off indicate on off operating mode.More specifically, the break-make of K1, K2, K3, K4, K5, Ka, Kb, F1, F2, F3 and F4 pass through behaviour respectively
Make the break-make control with lamp button switch K-1, K-2, K-3, K-4, K-5, K-a, K-b, F-1, F-2, F-3 and F-4 on panel.I.e.
Light on and off with indicator light on button on operation panel indicate respectively that corresponding opening or closing of elevator door lock F1, F2, F3, F4 and ground connection are opened
Close the on off operating mode of K1, K2, K3, K4, K5, Ka and Kb.Such as：The earthing switch Ka in elevator door lock safety return circuit is set to connect
Ground only needs the band lamp button switch K-a beside printed Ka switch symbols on push panel, at this time band lamp button switch K-a
On indicator light be lit, i.e. earthing switch Ka inside control cabinet in actual circuit, which is in, is closed ground state.
According to some embodiments of the present invention, the type of indicator light of the present invention is not particularly limited, preferably LED
Lamp.
According to some embodiments of the present invention, referring to Fig.1 with shown in 7, elevator door lock safety return circuit of the present invention may be used also
To include：Safety air switchs and facilities air switch, for protecting this demo system electric elements not to be burned to ensure to grasp
Make safety.According to some embodiments of the present invention, safety air switch of the present invention can also be replaced using fuse.
According to some embodiments of the present invention, with reference to shown in Fig. 7, demo system of the present invention further includes：Demo system
Master switch, the opening and closing for controlling entire demo system；Demo system of the present invention passes through the behaviour other than demo function
The multiple binding posts 15 made on face guide to the electric contact of elevator door lock safety return circuit on operation panel, which can also be by connecing
What the external multimeter of terminal or other kinds of elevator door lock safety return circuit ground state detecting instrument built the system in advance
Each node ground connection situation of internal circuit is tested, to improve door lock safety return circuit earth fault checked operation ability.Pass through
The elevator door lock safety return circuit circuit that this system is built in advance is diagnosed, other kinds of door lock of elevator can also be returned safely
The test accuracy of road ground state detecting instrument is calibrated.
It is to be appreciated that above-described embodiment is the demonstration of four layers of building elevator door lock safety return circuit earth fault
Journey, when for more layers elevator, principle is with reference to above-mentioned, and details are not described herein again.
Elevator door lock safety return circuit earth fault demo system of the present invention can simulate elevator running door lock and return safely
Road is grounded situation, and each section integrated level is high, objective interface is understandable, simple operation, has good practical value, can be examined to elevator
It tests personnel and maintenance staff and carries out the universal of safety education and earth fault knowledge, while can be used for elevator door lock safety return circuit and connecing
The verification and operation study of earth fault detecting instrument, have great importance.
It is understood that above are only the more excellent implementation of elevator door lock safety return circuit circuit ground malfunction demo of the present invention
Example, circuit diagram according to the present invention can also realize the group of other different band lamp button switch break-makes apart from the above
It closes, builds a variety of different elevator door lock safety return circuit earthed circuits and carry out analog demenstration.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification, meanwhile, for those of ordinary skill in the art, the think of according to the application
Think, there will be changes in the specific implementation manner and application range.
Claims (10)
1. a kind of elevator door lock safety return circuit earth fault demo system, including：It control cabinet and is set to inside the control cabinet
Elevator door lock safety return circuit, which is characterized in that
The elevator door lock safety return circuit includes：Power supply, air switch, opening or closing of elevator door lock module and the safety being sequentially connected in series are returned
Road relay module, wherein
The opening or closing of elevator door lock module includes：Multiple concatenated opening or closing of elevator door lock, it is each opening or closing of elevator door lock, described
Air switch and safety return circuit relay module are connected with one end of earthing switch, the other end ground connection of the earthing switch,
By the earth fault for controlling elevator door lock safety return circuit described in the opening or closing of elevator door lock and earthing switch analog demenstration.
2. elevator door lock safety return circuit earth fault demo system according to claim 1, which is characterized in that the power supply
Including：Alternating current 220V, direct current 110V and direct current 48V, are selected by third gear rotary switch.
3. elevator door lock safety return circuit earth fault demo system according to claim 2, which is characterized in that direct current 110V
The inside of the control cabinet is set to the power supply of direct current 48V, the power supply of alternating current 220V and the power supply being arranged in control cabinet are inserted
Seat is connected.
4. elevator door lock safety return circuit earth fault demo system according to claim 3, which is characterized in that the third gear
The gear end of rotary switch is connected with the coil of three supply relays respectively, for controlling three groups of the supply relay not
Same contact selects the power supply mode of alternating current 220V, direct current 110V and the different elevator door lock safety return circuits of direct current 48V respectively.
5. elevator door lock safety return circuit earth fault demo system according to claim 4, which is characterized in that the safety
Circuit relay module includes：Three safety return circuit relays in parallel, the coils of three safety return circuit relays is respectively with three
Second contact of a supply relay is connected.
6. elevator door lock safety return circuit earth fault demo system according to claim 5, which is characterized in that a power supply
The third contact of relay is connected with zero curve, and the third contact of other two supply relay is connected with ground wire.
7. elevator door lock safety return circuit earth fault demo system according to claim 1, which is characterized in that the elevator
Door lock safety return circuit further includes：Resistance is series between the power supply and safety return circuit relay module, is used for simulant elevator
The summation of the contact resistance and conducting wire self-resistance of door interlock switch.
8. elevator door lock safety return circuit earth fault demo system according to claim 7, which is characterized in that the safety
Circuit relay module is connected by the resistance with one end of earthing switch.
9. elevator door lock safety return circuit earth fault demo system according to claim 6, which is characterized in that the control
Case includes：Operation panel, babinet and case lid, wherein
The operation panel is installed on the babinet, and the operation panel is equipped with the corresponding elevator door lock safety return circuit
Earth fault illustrative circuitry figure, the operation panel are equipped with multiple mounting holes, in the elevator door lock safety return circuit
The installation of electric elements；The operation panel is equipped with multiple band lamp button switchs, the opening or closing of elevator door lock and earthing switch
Opening and closing pass through band lamp button switch control；
The box house is equipped with guide rail, for installing safety return circuit relay module and three supply relays, the babinet
It is equipped with hasp and handle；
The case lid is connect by hinge with babinet, and the case lid is equipped with staple, after the case lid closes, passes through the staple
The control cabinet is locked with hasp.
10. elevator door lock safety return circuit earth fault demo system according to claim 1, which is characterized in that the electricity
The quantity of terraced door interlock switch is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377871.3A CN108483163A (en) | 2018-04-25 | 2018-04-25 | A kind of elevator door lock safety return circuit earth fault demo system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810377871.3A CN108483163A (en) | 2018-04-25 | 2018-04-25 | A kind of elevator door lock safety return circuit earth fault demo system |
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| CN108483163A true CN108483163A (en) | 2018-09-04 |
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| CN201810377871.3A Pending CN108483163A (en) | 2018-04-25 | 2018-04-25 | A kind of elevator door lock safety return circuit earth fault demo system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203788A (en) * | 2019-07-02 | 2019-09-06 | 戈尔电梯（天津）有限公司 | A kind of hall door locks breaking locating and detecting device and detection method |
| CN111453572A (en) * | 2020-04-15 | 2020-07-28 | 广东省特种设备检测研究院珠海检测院 | Elevator door lock ground fault detection and positioning method |
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| CN110203788A (en) * | 2019-07-02 | 2019-09-06 | 戈尔电梯（天津）有限公司 | A kind of hall door locks breaking locating and detecting device and detection method |
| CN111453572A (en) * | 2020-04-15 | 2020-07-28 | 广东省特种设备检测研究院珠海检测院 | Elevator door lock ground fault detection and positioning method |
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