CN107187967A - Safety-type elevator inspection control device - Google Patents
Safety-type elevator inspection control device Download PDFInfo
- Publication number
- CN107187967A CN107187967A CN201710514906.9A CN201710514906A CN107187967A CN 107187967 A CN107187967 A CN 107187967A CN 201710514906 A CN201710514906 A CN 201710514906A CN 107187967 A CN107187967 A CN 107187967A
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- Prior art keywords
- elevator
- module
- switch
- inspection
- safety
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- 238000007689 inspection Methods 0.000 title claims abstract description 114
- 238000012423 maintenance Methods 0.000 claims abstract description 96
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
- B66B1/08—Control systems without regulation, i.e. without retroactive action electric with devices, e.g. handles or levers, in the cars or cages for direct control of movements
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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
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a kind of safety-type elevator inspection control device, if including dry repair module and safety return circuit module, overhauling module includes cage top overhauling module, car maintenance module, pit overhaul module, hoistway platform maintenance module, the first Signals Transfer Board and secondary signal pinboard；Include control elevator in each maintenance module and enter or exit the inspection switch and up button switch of inspecting state, descending button switch, inspection switch is the mechanical rotary switch in multigroup contact；Safety return circuit module, including each inspection switch being connected in series in elevator safety loop, and the inspection travel button switch being connected in parallel on each inspection switch；Safety-type elevator inspection control device effective guarantee with the said structure safety of overhauling elevator personnel, and Communication Control makes full use of the existing connecting line of elevator, reduces cable run；And overhaul signal and urgent electromotive signal to separate, improve the efficiency that elevator is installed and overhauled.
Description
Technical field
Meet the national new standard of elevator industry the present invention relates to the control device overhauled to elevator, more particularly to one kind
It is required that safety-type elevator inspection control device.
Background technology
Elevator will carry out Maintenance and Repair when normal mainteinance repair and failure during routine use.In order to overhaul
The safety progress of work, the requirement of elevator industry country new standard inspection travel control, mainly have it is following some：
1.1 inspection control device：In the car top of elevator and there must be the device in pit.
If 1.2 multiple inspection control devices are switched to " maintenance " state, any inspection control device is operated, all should can not
Make cage operation, except non-concurrent operates the same button on all inspection control devices.
1.3, by operating inspection control device in pit, make elevator recover to normal operation, the several conditions that should be met,
One of them is：The operation of electrical reset device outside hoistway.
But, although in the market some elevators had meet above-mentioned requirements with multiple inspection control devices
Circuit, but be due to the position difference of multiple apparatus for examination and repair, so in connection, cause the inconvenience of wiring and waste electric wire,
Or connection line is complicated, using many components, adds the manufacturing cost of elevator；In addition, generally overhauling signal and urgent
Electromotive signal is in parallel so that insopection traveling speed only up to reach the urgent electrical speeds 0.30m/s of highest, less than maintenance fortune
Row maximum speed 0.63m/s, if maintenance signal is separated with urgent electromotive signal, needs the letters for taking elevator main control board more
Number input port, the not enough trouble of signal input is brought when elevator carries out Function Extension.
The content of the invention
It is an object of the invention to provide a kind of peace for simplifying, optimizing cable run, reducing elevator main control board signaling interface
Holotype overhauling elevator control device.
To achieve these goals, the invention discloses a kind of safety-type elevator inspection control device, a kind of safety electric
Terraced inspection control device, if including dry repair module and safety return circuit module, the maintenance module include cage top overhauling module, sedan-chair
Railway carriage or compartment maintenance module, pit overhaul module, hoistway platform maintenance module, and installed in the first Signals Transfer Board of car top and installation
In the secondary signal pinboard of pit；Include control elevator in each described maintenance module and enter or exit inspecting state
Inspection switch and the descending descending button switch of the up up button switch of control overhauling elevator, overhauling elevator, the inspection
It is the mechanical rotary switch in multigroup contact to repair switch, and the up button switch and descending button switch are single group or multigroup contact machine
Tool button；
The cage top overhauling module is overhauled module by the car and concatenated to the first Signals Transfer Board, and car top, sedan-chair
Maintenance signal and elevator uplink and downlink signal in railway carriage or compartment are input to first Signals Transfer Board；The pit overhaul module passes through
The hoistway platform maintenance module is concatenated to the secondary signal pinboard, and the maintenance signal in pit, on hoistway platform
The secondary signal pinboard is input to elevator uplink and downlink signal；First Signals Transfer Board and the secondary signal turn
Fitting plate is connected with elevator main control board communication respectively；
The safety return circuit module, including each the described inspection switch being connected in series in elevator safety loop, and it is in parallel
Inspection travel button switch on each inspection switch, the elevator safety loop control elevator traction machine and brake
Current supply circuit contactor；When some described inspection switch disconnects, the inspection travel button at the inspection switch is pressed
Switch, the elevator safety loop being disconnected recovers conducting.
Compared with prior art, safety-type elevator inspection control device disclosed in this invention, is provided with cage top overhauling mould
Block, car maintenance module, pit overhaul module, hoistway platform maintenance module, meet the national new standard requirement of elevator industry extremely
The requirement of few setting inspection control device in car top and pit, is set according to the selection of elevator situation on car and hoistway platform
Overhaul module, the convenient major tune-up to elevator.Moreover, in the present invention, cage top overhauling module and car maintenance module control
Signal processed is initially transmitted on the first Signals Transfer Board, and pit overhaul module and hoistway platform maintenance module transmit control signal
Onto secondary signal pinboard, the first Signals Transfer Board is arranged at car top, and secondary signal pinboard is arranged at pit, and each
Signal is passed to elevator main control board after the conversion by complicated circuit or multiple components and compared by individual maintenance module, is reduced
Connection cables, convenient connection, and also when fault occurs in apparatus for examination and repair, maintenance is also convenient for.First Signals Transfer Board and
Secondary signal pinboard is connected with elevator main control board communication, therefore maintenance signal is separated with urgent electromotive signal so that maintenance
The speed of service reaches as high as 0.63m/s, electrical speeds 0.30m/s urgent higher than highest, improves what elevator was installed and overhauled
Efficiency.In addition, in the present invention, inspection switch is single group or multigroup contact using the mechanical rotary switch in multigroup contact, button switch
Mechanical button, compared with it can just be input to elevator main control board after mechanical switch signal is changed by components such as relays, without
Extra power supply is set, and contact adhesion fault will not be produced, the probability of false triggering is reduced.
It is preferred that first Signals Transfer Board includes the first signal common port, the first maintenance signal end, the first up letter
Inspection switch and car maintenance mould in number end, the first downstream signal end, and the first PORT COM, the cage top overhauling module
Inspection switch in block is concatenated to the first maintenance signal end by normally-closed contact；Up button in the cage top overhauling module is opened
Close and descending button switchs the normally-closed contact for overhauling the inspection switch in module by car respectively and is connected to the first upward signal
End and the first downstream signal end；
The inspection switch in inspection switch and hoistway platform maintenance module in the pit overhaul module is normal by one group
Closed contact is concatenated to the second maintenance signal end；Up button switch and descending button switch difference in the pit overhaul module
The normally-closed contact for overhauling the inspection switch in module by hoistway platform is connected to the second upward signal end and the second downstream signal
End；
First PORT COM and second PORT COM electrically connect with the PORT COM on elevator main control board respectively
Connect, received elevator operation and up, down order are passed to elevator main control board.
It is preferred that the inspection switch in the pit overhaul module includes two built-in inspection switch being connected in series and outer
Inspection switch is put, the built-in inspection switch is arranged on inside pit, and the external inspection switch is arranged on the well near pit
Outside road.
It is preferred that the up button switch and downing switch that the car maintenance module and hoistway platform are overhauled in module are equal
To include the button switch of two groups of switch contacts acted simultaneously, one of which switch contact is touched with the normally opened of the inspection switch
Point series connection, another group of switch contact is in parallel with the normally-closed contact of the inspection switch.
It is preferred that the safety return circuit module also include being connected on being used for elevator traction machine in elevator safety loop and
The elevator door lock loop of the current supply circuit contactor control of brake and elevator controlling loop.
Brief description of the drawings
Fig. 1 is the circuit theory schematic diagram of safety-type elevator inspection control device embodiment of the present invention.
Embodiment
To describe technology contents, architectural feature, realization principle and the objects and the effects of the present invention in detail, tie below
Close embodiment and coordinate accompanying drawing to be explained in detail.
The invention discloses a kind of safety-type elevator inspection control device, if as shown in figure 1, including dry repair module and peace
Full loop module, maintenance module includes cage top overhauling module, car maintenance module, pit overhaul module, hoistway platform maintenance mould
Block, and the first Signals Transfer Board installed in car top and the secondary signal pinboard installed in pit；In each maintenance module
In include control elevator and enter or exit inspection switch AK1, AK2, AK3, AK4 of inspecting state, and control overhauling elevator
Up up button switch AS1, AS2, AS3, AS4, and overhauling elevator it is descending descending button switch AX1, AX2, AX3,
AX4, inspection switch is the mechanical rotary switch in multigroup contact, and up button switch and descending button switch are single group or multigroup contact
Mechanical button, acts any one inspection switch so that safety return circuit disconnects, while elevator enters inspecting state.
Cage top overhauling module is overhauled module by car and concatenated to the first Signals Transfer Board, and the inspection in car top, car
Repair signal and elevator uplink and downlink signal is input to the first Signals Transfer Board；Pit overhaul module overhauls module by hoistway platform
Concatenation is input to the to secondary signal pinboard, and the maintenance signal in pit, on hoistway platform and elevator uplink and downlink signal
Binary signal pinboard；First Signals Transfer Board and secondary signal adaptor plate are connected with elevator main control board communication respectively.
Safety return circuit module, including each inspection switch AK1, AK2, AK3, the AK4 being connected in series in elevator safety loop, with
And inspection travel button switch AC1, AC2, AC3, AC4 on each inspection switch are connected in parallel on, and elevator safety loop is directly controlled
Current supply circuit contactor KM1, JBZ of traction machine and brake are made, when some inspection switch (such as AK1) disconnects, is pressed
Inspection travel button switch AC1 at inspection switch AK1, the safety return circuit being disconnected recovers conducting.Using in the present embodiment
Safety return circuit module, any one maintenance module can disconnect elevator safety loop, and only exist when being switched to inspecting state
When pinning inspection travel button switch in the maintenance module, safety return circuit is only possible to connect.In addition, if when elevator repaiies operation
Something unexpected happened is, it is necessary to urgent stop elevator, as long as now unclamping the inspection travel button switch in safety return circuit module, then
Safety return circuit is disconnected, so as to disconnect the power supply of traction machine and brake by contactor, reliable stop elevator is further increased
The security of inspection travel.
The circuit theory of safety-type elevator inspection control device of the present invention is：Maintenance signal in car top, in car and on
Row, downstream signal, are input to the first Signals Transfer Board at car top, in pit, the maintenance signal on hoistway platform and on
Row, downstream signal, are input to the secondary signal pinboard in pit.When single maintenance module is switched to inspecting state,
Operation be located at the maintenance module in inspection travel button switch AC1 (or AC2) and up button switch AS1 (or AS2) or under
Row button switch AX1 (or AX2) can connect ascending for elevator or downstream signal loop.When two or more maintenance modules
When being switched to inspecting state, such as when the maintenance module in car top and in car is all switched to inspecting state, only grasp simultaneously
Make the inspection travel button switch AC1 in this two maintenance modules, AC2, up button switch AS1, AS2 or descending button to switch
AX1, AX2 just can turn on overhauling elevator upstream or downstream signal circuit.
When safety return circuit signal is effective, that is to say safety return circuit conducting：Only the first Signals Transfer Board receives maintenance letter
Number when, the first Signals Transfer Board receives the upstream or downstream signal of elevator, and elevator is with inspection speed upstream or downstream；Only second
When Signals Transfer Board receives maintenance signal, secondary signal pinboard receives the upstream or downstream signal of elevator, and elevator is to examine
Repair speed upstream or downstream；First Signals Transfer Board and secondary signal pinboard all receive maintenance signal simultaneously when, if the
One Signals Transfer Board and secondary signal pinboard all receive ascending for elevator signal, and elevator is up with inspection speed, the first signal
Pinboard and secondary signal pinboard all receive elevator downstream signal, and elevator is descending with inspection speed, when the first signal converting
When plate and secondary signal pinboard are respectively received up (or descending), descending (or up) signal simultaneously, elevator stops, and does not transport
OK.
Compared with prior art, safety-type elevator inspection control device disclosed in this invention, is provided with cage top overhauling mould
Block, car maintenance module, pit overhaul module, hoistway platform maintenance module, meet the national new standard requirement of elevator industry extremely
The requirement of few setting inspection control device in car top and pit, is set according to the selection of elevator situation on car and hoistway platform
Overhaul module, the convenient major tune-up to elevator.Moreover, in the present invention, cage top overhauling module and car maintenance module control
Signal processed is initially transmitted on the first Signals Transfer Board, and pit overhaul module and hoistway platform maintenance module transmit control signal
Onto secondary signal pinboard, the first Signals Transfer Board is arranged at car top, and secondary signal pinboard is arranged at pit, and each
Signal is passed to elevator main control board after the conversion by complicated circuit or multiple components and compared by individual maintenance module, is reduced
Connection cables, convenient connection, and also when fault occurs in apparatus for examination and repair, maintenance is also convenient for.First Signals Transfer Board and
Secondary signal pinboard is connected with elevator main control board communication, therefore maintenance signal is separated with urgent electromotive signal so that maintenance
The speed of service reaches as high as 0.63m/s, electrical speeds 0.30m/s urgent higher than highest, improves what elevator was installed and overhauled
Efficiency.In addition, in the present invention, inspection switch is single group or multigroup contact using the mechanical rotary switch in multigroup contact, button switch
Mechanical button, compared with it can just be input to elevator main control board after mechanical switch signal is changed by components such as relays, without
Extra power supply is set, and contact adhesion fault will not be produced, the probability of false triggering is reduced.
In another preferred embodiment of the present invention, as shown in figure 1, the first Signals Transfer Board is public including the first signal
End, the first maintenance signal end, the first upward signal end, the first downstream signal end, and the first PORT COM, cage top overhauling module
In inspection switch AK1 and car maintenance module in inspection switch AK2 by normally-closed contact concatenate to first maintenance signal end；
Up button switch AS1 and descending button switch AX1 in cage top overhauling module overhaul the maintenance in module by car respectively
Switch AK2 normally-closed contact is connected to the first upward signal end and the first downstream signal end；Maintenance in pit overhaul module is opened
The inspection switch AK4 closed in AK3 and hoistway platform maintenance module is concatenated to the second maintenance signal end by one group of normally-closed contact；Bottom
Up button switch AS3 and descending button switch AX3 in hole maintenance module overhaul the inspection in module by hoistway platform respectively
The normally-closed contact for repairing switch AK4 is connected to the second upward signal end and the second downstream signal end；First PORT COM and second leads to
Port is interrogated to be electrically connected with the PORT COM (PORT COM 1 and PORT COM 2 in such as Fig. 1) on elevator main control board respectively,
Received elevator operation and up, down order pass to elevator main control board.For the ease of operation, electricity is controlled respectively
Terraced up, down order, car maintenance module and up button switch AS2, AS4 in hoistway platform maintenance module and descending press
Button switch AX2, AX4 are comprising two groups while the button switch of the switch contact of action, one of which switch contact and maintenance
AK2 (AK4) normally opened contact series connection is switched, another group of switch contact is in parallel with inspection switch AK2 (AK4) normally-closed contact.
, it is necessary into inside pit, being needed during pit is entered and left really during due to being overhauled to pit
Personal safety is protected, therefore in an alternative embodiment of the invention, the maintenance in pit overhaul module, which is opened AK3 and closed, includes two series connection companies
The built-in inspection switch AK30 and external inspection switch AK31 connect, built-in inspection switch AK30 are arranged on inside pit, external inspection
Switch AK31 is repaiied to be arranged on outside the hoistway near pit.
Maintenance shape is switched to maintenance module with reference to the said structure of safety-type elevator inspection control device of the present invention
The operation of state carries out labor.
1st, single maintenance module is switched to the operating analysis of inspecting state
By taking pit overhaul module as an example, the built-in inspection switch AK30 and external inspection switch AK31 of pit module are pushed
Position (normally closed change is normally opened, normally opened to become normally closed) is overhauled, the second maintenance signal end of secondary signal pinboard receives maintenance signal
(signal circuit disconnection), safety return circuit is disconnected, and elevator enters inspecting state.Then, while pressing inspection travel button switch
AC3 and up button switch AS3 (or descending button switch AX3), elevator is up (or descending) with inspection speed, and maintenance is not operated
When running button switch AC3 and up button switch AS3 (or descending button switch AX3), elevator stops.
2nd, the maintenance module of two and the above is switched to the operating analysis of inspecting state
Exemplified by when cage top overhauling module, car maintenance module are all switched to inspecting state.
When individually operated cage top overhauling module, the inspection switch AK2 normally-closed contacts of car maintenance module disconnect, normally opened to touch
Point closure, the uplink and downlink signal circuit of elevator is all disconnected, so when press inspection travel button AC1 simultaneously and up press
Button switch AS1 (or descending button switch AX1), the first upward signal end (or first downstream signal end) of the first Signals Transfer Board
Still invalid, elevator keeps stopping, identical with above-mentioned operation logic during individually operated car module, repeats no more.
When operating cage top overhauling module and car maintenance module simultaneously, while the inspection travel button pressed in car top is opened
AC1 and up button switch AS1 (or descending button switch AX1) are closed, and presses the inspection travel button switch in car simultaneously
AC2 and up button switch AS2 (or descending button switch AX2), then up (or descending) signal of elevator and safety return circuit are believed
Number effectively, elevator is up (or descending) with inspection speed.
Other two or more maintenance modules are switched to inspecting state, and operation is similar with above-mentioned situation, will not be repeated here.
Safety return circuit module in the present invention has effectively ensured the safe operation of elevator, it is to avoid the generation of maintenance accident.
Assuming that something unexpected happened is, it is necessary to urgent stop elevator during inspection travel, as long as now unclamping the inspection travel in maintenance module
Button switch, then disconnect safety return circuit.As shown in Figure 1, safety return circuit disconnects, then contactor JBZ and the release of KM1 dead electricity, normally opened
Contact disconnects, so that the current supply circuit and the current supply circuit of traction machine of breakaway braking device, traction machine dead electricity stop driving, brake
Dead electricity closes traction machine band-type brake, reliably stop elevator.
In order to further ensure maintenance safety, in an alternative embodiment of the invention, safety return circuit module also includes being connected on
Being used for the elevator door lock loop of the current supply circuit contactor of elevator traction machine and brake control in elevator safety loop and
Elevator controlling loop, realizes the control to traction machine and the current supply circuit contactor of brake.
Above disclosed is only the preferred embodiments of the present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.
Claims (5)
1. a kind of safety-type elevator inspection control device, if including dry repair module and safety return circuit module, it is characterised in that institute
Stating maintenance module includes cage top overhauling module, car maintenance module, pit overhaul module, hoistway platform maintenance module, Yi Jian
The first Signals Transfer Board mounted in car top and the secondary signal pinboard installed in pit；Wrapped in each described maintenance module
Include inspection switch and the up up button switch of control overhauling elevator, elevator that control elevator enters or exited inspecting state
The descending descending button switch of maintenance, the inspection switch is the mechanical rotary switch in multigroup contact, the up button switch and
Descending button switch is single group or multigroup contact mechanical button；
The cage top overhauling module is overhauled module by the car and concatenated to the first Signals Transfer Board, and in car top, car
Maintenance signal and elevator uplink and downlink signal be input to first Signals Transfer Board；The pit overhaul module passes through described
Hoistway platform maintenance module is concatenated to the secondary signal pinboard, and the maintenance signal and electricity in pit, on hoistway platform
Terraced uplink and downlink signal is input to the secondary signal pinboard；First Signals Transfer Board and the secondary signal adaptor
Plate is connected with elevator main control board communication respectively；
The safety return circuit module, including each the described inspection switch being connected in series in elevator safety loop, and be connected in parallel on every
Inspection travel button switch on the individual inspection switch, the confession of the elevator safety loop control elevator traction machine and brake
Electrical circuit contactor；When some described inspection switch disconnects, the inspection travel button switch at the inspection switch is pressed,
The elevator safety loop being disconnected recovers conducting.
2. safety-type elevator inspection control device according to claim 1, it is characterised in that first Signals Transfer Board
Including the first signal common port, the first maintenance signal end, the first upward signal end, the first downstream signal end, and the first communication
The inspection switch in inspection switch and car maintenance module in port, the cage top overhauling module passes through normally-closed contact string
It is connected to the first maintenance signal end；Up button switch and descending button in the cage top overhauling module are switched respectively by described
The normally-closed contact of inspection switch in car maintenance module is connected to the first upward signal end and the first downstream signal end；
The inspection switch in inspection switch and hoistway platform maintenance module in the pit overhaul module is normally closed tactile by one group
Point is concatenated to the second maintenance signal end；Up button switch and descending button switch in the pit overhaul module pass through respectively
The normally-closed contact of inspection switch in the hoistway platform maintenance module is connected to the second upward signal end and described second
Downstream signal end；
First PORT COM and second PORT COM are electrically connected with the PORT COM on elevator main control board respectively,
Received elevator operation and up, down order pass to elevator main control board.
3. the safety-type elevator inspection control device according to right wants 2, it is characterised in that in the pit overhaul module
Inspection switch includes the two built-in inspection switch and external inspection switch being connected in series, and the built-in inspection switch is arranged on bottom
Hole is internal, and the external inspection switch is arranged on outside the hoistway near pit.
4. the safety-type elevator inspection control device according to right wants 2, it is characterised in that the car maintenance module and institute
State the up button switch in hoistway platform maintenance module and descending button switch is comprising two groups while the switch of action is touched
The button switch of point, one of which switch contact is connected with the normally opened contact of the inspection switch, another group of switch contact and institute
The normally-closed contact for stating inspection switch is in parallel.
5. the safety-type elevator inspection control device according to right wants 1, it is characterised in that the safety return circuit module is also wrapped
Include the elevator door for being used for the current supply circuit contactor control to elevator traction machine and brake being connected in elevator safety loop
Lock loop and elevator controlling loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514906.9A CN107187967B (en) | 2017-06-29 | 2017-06-29 | Safe elevator maintenance control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514906.9A CN107187967B (en) | 2017-06-29 | 2017-06-29 | Safe elevator maintenance control device |
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| CN107187967A true CN107187967A (en) | 2017-09-22 |
| CN107187967B CN107187967B (en) | 2023-04-07 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650203A (en) * | 2019-01-02 | 2019-04-19 | 杭州优迈科技有限公司 | A kind of shallow pit installs elevator and its electrical system additional |
| CN110316627A (en) * | 2018-03-28 | 2019-10-11 | 上海三菱电梯有限公司 | Elevator safety system |
| CN110697527A (en) * | 2019-09-04 | 2020-01-17 | 日立楼宇技术（广州）有限公司 | Control method, device, controller and storage medium for exiting car top inspection mode |
| CN110844734A (en) * | 2019-12-16 | 2020-02-28 | 巨立电梯股份有限公司 | Maintenance control circuit of elevator and elevator |
| CN112061914A (en) * | 2019-06-10 | 2020-12-11 | 上海三菱电梯有限公司 | Elevator safety loop detection system |
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| CN110697527B (en) * | 2019-09-04 | 2021-03-23 | 日立楼宇技术（广州）有限公司 | Control method, device, controller and storage medium for exiting car top inspection mode |
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