CN104692226B - A kind of delayed shutdown system and method for escalator or moving sidewalk - Google Patents
A kind of delayed shutdown system and method for escalator or moving sidewalk Download PDFInfo
- Publication number
- CN104692226B CN104692226B CN201510019395.4A CN201510019395A CN104692226B CN 104692226 B CN104692226 B CN 104692226B CN 201510019395 A CN201510019395 A CN 201510019395A CN 104692226 B CN104692226 B CN 104692226B
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- Prior art keywords
- brake
- switch
- escalator
- moving sidewalk
- relay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
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- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses the delayed shutdown system of a kind of escalator or moving sidewalk, including safety return circuit from brake signal to brake and parking testing circuit for sending, be additionally provided with: the delayer triggered by described parking testing circuit；The first switch triggered by described safety return circuit；The second switch triggered by described delayer；For controlling the plugging relay of described brake, the control end of this plugging relay and the first switch, second switch parking in series loop, the normally-closed contact of described plugging relay accesses the performance loop of brake.The invention also discloses a kind of delayed shutdown method.Using the delayed shutdown system and method for the present invention, when during holding state, rotating speed when main frame is down to certain value even zero-speed, service brake implements band-type brake, reduces brake block abrasion；Simultaneously when escalator and moving sidewalk emerged in operation fault, service brake can action immediately, it is ensured that escalator and moving sidewalk safety in operation.
Description
Technical field
The invention belongs to escalator and moving sidewalk design field, be specifically related to one certainly
Dynamic staircase or the delayed shutdown system and method for moving sidewalk.
Background technology
Escalator and moving sidewalk are the special equipments that a kind of load factor is the lowest, use self-starting shape
The escalator of formula and moving sidewalk are considerable in terms of saving the energy and reducing mechanical wear
's.Owing to frequency converter price is higher, therefore the escalator of power frequency self-starting and moving sidewalk are increasingly
How to be selected by people.
As it is shown in figure 1, in existing shutdown system, generally comprise for detecting escalator or automatic
Pavement whether be in normal operating condition safety return circuit 1 and for detect escalator or from
The parking testing circuit 2 whether motor runs is run and detected in moving trade whether.
Safety return circuit 1 includes multiple sensor, is arranged in escalator or moving sidewalk relevant position,
For detecting escalator or each position of moving sidewalk or the running status of parts.
Parking testing circuit mainly comprise as in figure 2 it is shown, the normally-closed contact of upcoming contact device KMU
The normally-closed contact and three of contactor KMS in parallel, star-like with the normally-closed contact of descending contactor KMD
The normally-closed contact of dihedral contactor KMF is in parallel, connects and control plugging relay in two shunt circuits
The coil of (brake relay) BY whether electric.Upcoming contact device KMU, descending contactor
KMD, star-like contactor KMS are concurrently residing in motor operation with the contact of delta contactor KMF
Control, in loop, to be instructed by master board, control the running status of motor.When elevator is properly functioning,
In the normally-closed contact of the normally-closed contact of upcoming contact device KMU and descending contactor KMD one of them
Normally-closed contact closes, and another one normally-closed contact disconnects.The normally-closed contact of star-like contactor KMS breaks
Open, the normally-closed contact Guan Bi of delta contactor KMF.
The output of safety return circuit 1 and master board 12 input (shown in Fig. 1) in prior art
It is connected, an output of master board 12 and the control of safety return circuit state-detection relay K BY
Coil is connected；Parking testing circuit 2 output is connected with the control coil of plugging relay BY；Peace
The normally-closed contact KBY-1's and plugging relay BY of full loop state-detection relay K BY is normally closed
Contact BY-1 is all linked in the control loop 4 of brake.When safety return circuit 1 detects system event
During barrier, safety return circuit state-detection relay K BY action, brake coil 13 dead electricity, brake
Brake immediately；When unmanned boarding within the setting time, escalator and moving sidewalk enter standby
State, the master board 12 contactor in parking testing circuit 2 sends control signal, cuts out electricity
Motivation, parking testing circuit 2 disconnects simultaneously, plugging relay BY action, brake coil 13
Dead electricity, brake is braked immediately.
The escalator of above-mentioned existing braking mode and moving sidewalk in use can be frequent
Startup with stop ladder, in the market, escalator and moving sidewalk enter holding state moment,
Service brake will band-type brake immediately, but now engine speed is the highest, thus can bring brake shoe
, there is the biggest potential safety hazard in heavy wear.
Summary of the invention
The invention provides the delayed shutdown system of a kind of escalator or moving sidewalk, it is ensured that power frequency
Escalator and the moving sidewalk of self-starting are changed the moment to holding state by normal operating condition,
Pass through trigger delayer, it is achieved the deferred action of service brake；Ensure due to escalator simultaneously and
The operating fault of moving sidewalk and cause the moment of main frame power-off, service brake action immediately.
The delayed shutdown system of a kind of escalator or moving sidewalk, including for sending to brake
The safety return circuit of brake signal and parking testing circuit, be additionally provided with:
The delayer triggered by described parking testing circuit；
The first switch triggered by described safety return circuit；
The second switch triggered by described delayer；
For controlling the plugging relay of described brake, the control end of this plugging relay and first is opened
Pass, second switch parking in series loop, the normally-closed contact of described plugging relay accesses brake
Performance loop.
Utilize the technique scheme of the present invention, when safety return circuit breaks down, the first switch motion,
The performance loop of brake disconnects, and brake is braked immediately.When escalator or moving sidewalk are normal
When running entrance holding state, master board triggers parking testing circuit, and then trigger delayer, prolongs
Time after device time delay completes, second switch action, the performance loop of brake disconnects, and brake is made immediately
Dynamic.Pass through delayer, it is ensured that escalator or moving sidewalk slow down in delay time, when
Decelerate to setting value or time deceleration is zero, brake action, thus realize the delay braking of brake.
As preferably, described delayer and second switch are integrated to a time-delay relay；This time delay continues
The control of electrical equipment terminates into parking testing circuit, and the normally-closed contact of time-delay relay accesses described parking and returns
Road.The accurate control to parking loop of the described parking testing circuit can be realized by time-delay relay.
As preferably, described first switch is relay, and the control end of this relay returns with described safety
The output on road connects, and the normally-closed contact of this relay accesses described parking loop.Select relay,
It is capable of the safety return circuit control to parking loop.
As preferably, described parking loop is also in series with the 3rd switch, is additionally provided with in delayed shutdown system
For sending the overspeed detection circuit of cut-off signals to the 3rd switch.Use this technical scheme, when automatically
When staircase or moving sidewalk overspeed, overspeed detection circuit sends control signal, and brake is preferential
Braking, it is ensured that escalator or the security of moving sidewalk.Overspeed detection circuit can be selected for by existing
Velocity sensor and the simple entity circuit of comparator composition.
As preferably, described parking loop is also in series with the 4th switch, is additionally provided with in delayed shutdown system
For sending the reverse testing circuit of cut-off signals to the 4th switch.Use this technical scheme, automatically hold up
When ladder or moving sidewalk reverse speed operation, reversing testing circuit and send control signal, brake is preferentially made
Dynamic, it is further ensured that the security of escalator or moving sidewalk.Reverse testing circuit can use by
The sensor of existing detection motor steering and the simple entity circuit of comparator composition.
As preferably, described parking loop is also in series with the 5th switch and two-stage delay circuit, institute
State two-stage delay circuit to include:
First delayer, is triggered by parking testing circuit；
Second delayer, is triggered by the first delayer, and the output of the second delayer and the 5th switchs
Control end to connect, after carrying out time delay according to default coasting time, send cut-off signals to the 5th switch.
Described coasting time is typically based on permission coasting distance, is calculated by repeatedly simulated experiment,
Can also be calculated based on experience value.Described coasting distance is true generally according to GB or professional standard
Fixed.
As preferably, described safety return circuit accesses master board, the first signal output part of master board
Mouth connects the control end of the first switch；Described 3rd switch, the 4th switch, the 5th switch are all integrated to main
Control panel, the secondary signal output port of master board connects parking loop.
In the present invention, described the 3rd switchs, the 4th switch, the 5th switch can be realized by software,
Also can pass through entity circuit realiration, or use software and hardware combining to realize.Described overspeed detection circuit,
Reverse testing circuit etc. and all can be selected for existing entity circuit, it is possible to select to be realized by software.
Present invention also offers a kind of delayed shutdown method of escalator or moving sidewalk, by this
When parking method, escalator or moving sidewalk enter holding state, service brake can be realized
Deferred action, reduces the abrasion to brake shoe.
A kind of delayed shutdown method of escalator or moving sidewalk, including detection safe condition and
Dead ship condition, when any one meets trigger condition when safe condition and dead ship condition, drives braking
Device brakes, and when safe condition meets trigger condition, drives brake to brake at once；?
When dead ship condition meets trigger condition, brake is driven to brake after main control time delay again.
As preferably, described detection dead ship condition includes that detection drives motor status and step to run shape
State, when drive motor status and step running status any one meet trigger condition time, all think
Dead ship condition meets trigger condition.In this technical scheme, described driving motor status refers to drive motor
Whether in the state run, when driving motor out of service, dead ship condition meets trigger condition；Institute
State step running status and refer to whether step is in uplink state or downstream state, when step run from
Uplink state or downstream state are changed into when shutting down state, and dead ship condition meets trigger condition.
In the present invention, when sensor detects that step is changed into holding state, master board is sent out to motor
Going out stopping signal, now dead ship condition meets trigger condition, after main control time delay, drives brake to enter
Row brake.
As preferably, when step running status meets trigger condition, stop motor simultaneously and run.
As preferably, when step running status meets trigger condition, also to system in addition to main control time delay
Dynamic device carries out Redundant Control, and this Redundant Control includes:
After the first time delay, according to default coasting time as the second time delay；
After the second time delay, brake is driven to brake.
Described coasting time is typically based on permission coasting distance, is calculated by repeatedly simulated experiment,
Can also be calculated based on experience value.Described coasting distance is true generally according to GB or professional standard
Fixed.
Use this technical scheme, while realizing delay braking, also can meet the requirement of relevant criterion.
As preferably, during the second time delay, turning to and rotating speed, when motor of on-line checking motor
Turn to or time rotating speed occurs abnormal, drive brake to brake immediately.Use this technical scheme, real
When border is run, when escalator or moving sidewalk take a turn for the worse or during overspeed, and brake stands
I.e. preferential braking, it is ensured that escalator or the security of moving sidewalk.
Compared with prior art, beneficial effects of the present invention is embodied in:
Use escalator or the delayed shutdown system and method for moving sidewalk of the present invention, for work
The escalator of self-starting frequently and moving sidewalk, the most standby and self-starting the brake shoe caused mill
Damage can be improved, service brake action the most immediately during holding state, the by the time rotating speed of main frame
When being down to certain value even zero-speed, service brake implements band-type brake, it is ensured that service brake long-term
Service behaviour；Simultaneously when escalator and moving sidewalk emerged in operation fault, service brake
Can action immediately, it is ensured that escalator and moving sidewalk safety in operation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram controlling loop of the brake coil of prior art.
Fig. 2 is the control drawing of the plugging relay of prior art.
Fig. 3 is the workflow of the delayed shutdown method of the escalator of the present invention or moving sidewalk
Figure.
Fig. 4 is the control principle of the delayed shutdown system of the escalator of the present invention or moving sidewalk
Figure.
Fig. 5 is the control drawing of the time-delay relay of the present invention.
Fig. 6 is service brake coil and the control of safety return circuit detection relay coil of the present invention
Principle road.
In above-mentioned accompanying drawing:
1, safety return circuit；2, parking testing circuit；3, parking loop；4, performance loop；5、
3rd switch；6, overspeed detection circuit；7, the 4th switch；8, testing circuit is reversed；9, the 5th
Switch；10, the first delayer；11, the second delayer；12, master board；13, brake line
Circle；KMU, upcoming contact device；KMD, descending contactor；KMS, star-like contactor；KMF、
Delta contactor；KT, time-delay relay；KT-1, the normally-closed contact of time-delay relay KT；
BY, plugging relay；BY-1, the normally-closed contact of plugging relay BY；KBY, safety return circuit
State-detection relay；KBY-1, the normally-closed contact of safety return circuit state-detection relay K BY；
EOK, safety return circuit state-detection output port；KEB, service brake output control terminal mouth.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 4, a kind of escalator of the present embodiment or the delayed shutdown system of moving sidewalk,
Including safety return circuit 1 from brake signal to brake and parking testing circuit 2 for sending, and:
The delayer triggered by parking testing circuit 2；The first switch triggered by safety return circuit 1；By time delay
The second switch that device triggers；For the plugging relay BY of control brake, this plugging relay BY
Control end and first switch, second switch parking in series loop, this plugging relay BY's
Normally-closed contact BY-1 accesses the performance loop 4 of brake.
First switch both can access safety return circuit 1 to realize returning with safety by simple analog circuit
The state synchronized on road 1, it is also possible to add extra process electricity between safety return circuit 1 and the first switch
Road, such as, access master board 12, the first signal output part of master board 12 by safety return circuit 1
Mouth connects the control end of the first switch.
Master board 12 herein, it is possible to use existing escalator or the main control of moving sidewalk
Plate, can do corresponding logical process to the status information of safety return circuit 1, then by master board
The first switch is controlled through the first signal output port.
In the present embodiment, the first switch is safety return circuit state-detection relay K BY, and this returns safely
First signal output port controlling end and master board 12 of line state detection relay K BY is even
Connecing, the normally-closed contact KBY-1 of this safety return circuit state-detection relay K BY accesses parking loop 3.
Delayer and second switch are integrated to a time-delay relay KT；This time-delay relay KT's
Controlling to terminate into parking testing circuit 2, the normally-closed contact KT-1 of this time-delay relay KT (is equivalent to
Second switch) access described parking loop 3.
Safety return circuit 1 includes that multiple sensor, multiple sensors are used for detecting escalator or from moving
The running status of each parts in trade, is sent to master board 12 in real time simultaneously by status signal.Stop
Testing circuit composition sees Fig. 5, wherein upcoming contact device KMU in parallel with descending contactor KMD,
Star-like contactor KMS is in parallel with delta contactor KMF, connects and control in two shunt circuits
The coil of time-delay relay KT whether electric.
As further Redundant Control, in the present embodiment, parking loop 3 is also in series with the 3rd switch
5, the 4th switch 7, the 5th switch 9, wherein the 3rd switch 5 is controlled by overspeed detection circuit 6, the
Four switches 7 are controlled by reverse testing circuit 8, and the 5th switch 9 is controlled by two-stage delay circuit.
Two-stage delay circuit includes: by the first delayer 10 of parking testing circuit 2 triggering, by first
The second delayer 11 that delayer 10 triggers, the output of the second delayer 11 and the 5th switch 9
Control end connect, carry out turning off letter to the 5th switch 9 transmission after time delay according to default coasting time
Number.
Above-mentioned coasting time is typically based on permission coasting distance, is calculated by repeatedly simulated experiment,
Can also determine based on experience value.Above-mentioned coasting distance determines generally according to GB or professional standard.
With regard to the 3rd switch the 5, the 4th switch the 7, the 5th switch 9 and two-stage delay circuit itself,
I.e. can use existing analog circuit or integrated chip, it is also possible to be all integrated to existing escalator or
The master board 12 of moving sidewalk, and overspeed detection circuit 6 and reverse testing circuit 8 all can profits
With existing testing circuit or device.
3rd switch the 5, the 4th switch the 7, the 5th switch 9 and two-stage delay circuit are integrated to master control
During making sheet 12, the secondary signal output port (model with specific reference to master board of master board 12
Depending on) connecting parking loop 3, master board 12 gathers overspeed detection circuit 6, reverses testing circuit
8 and the signal of parking testing circuit 2, control parking loop 3 by internal logical operation
Break-make, realizes the 3rd switch the 5, the 4th switch the 7, the 5th switch 9 and two-stage time delay electricity indirectly
The function on road.
As shown in Figure 6, in conjunction with Fig. 4, the 3rd switch the 5, the 4th switch the 7, the 5th switch 9 and two
When level delay circuit is integrated to master board 12, the first signal output port of master board 12 is peace
Full loop state-detection output port EOK, this port and safety return circuit state-detection relay K BY
It is connected.The secondary signal output port of master board 12 is service brake output control terminal mouth KEB,
Being connected with parking loop 3, in parking loop 3, safety return circuit state-detection relay K BY is normally closed
The normally-closed contact KT-1's and plugging relay BY of contact KBY-1 and time-delay relay KT
Control coil is connected.
In conjunction with Fig. 3 and Fig. 4, during actual motion, when safety return circuit 1 breaks down, safety return circuit shape
The control coil dead electricity of state detection relay K BY, its normally-closed contact KBY-1 disconnects, and cuts off work
Brake coil 13 is powered, service brake dead electricity immediately, implements band-type brake.
Within the setting time during unmanned boarding, master board controls upcoming contact device KMU, descending connects
Tentaculum KMD, star-like contactor KMS, delta contactor KMF dead electricity, cut off the confession of motor
Electricity, visible in conjunction with Fig. 5, the control coil dead electricity of time-delay relay KT i.e. starts timing, setting
After delay time arrival, the normally-closed contact KT-1 of time-delay relay KT disconnects, and cuts off service brake
Coil power, implements band-type brake.
In conjunction with Fig. 4 and Fig. 6, as further Redundant Control, within the setting time during unmanned boarding,
The 5th switch 9 and the two-stage delay circuit that are integrated to master board 12 also begin to trigger, the most tactile
Send out is the first delayer 10, after the first time delay, prolongs using default step coasting time as second
Time device 11 the second time delay, after the second time delay, the output of the service brake of master board 12 controls
Port KEB exports cut-off signals, and this cut-off signals is it is believed that trigger the 5th switch 9, and shutoff stops
Car loop 3, implements band-type brake.
During whole, overspeed detection circuit 6, reverse testing circuit 8 are all the time to master board 12
Send signal, turning to and rotating speed of on-line checking motor, when turning to or time rotating speed occurs abnormal of motor,
Trigger the 3rd switch 5 or the 4th switch 7, the work of master board 12 being integrated in master board immediately
Make brake output control terminal mouth KEB and export cut-off signals, turn off parking loop 3, implement band-type brake,
Ensure that the security of escalator or moving sidewalk.
Above example is not to be taken as limiting the scope of the invention, any on present invention basis
On do not make the amendment of creativeness, and simply extension and increase to the present invention is accordingly to be regarded as the present invention's
Protection domain.
Claims (9)
1. a delayed shutdown system for escalator or moving sidewalk, including safety return circuit (1) from brake signal to brake and parking testing circuit (2) for sending, it is characterised in that: it is additionally provided with:
The delayer triggered by described parking testing circuit (2)；
The first switch triggered by described safety return circuit (1)；
The second switch triggered by described delayer；
For controlling the plugging relay (BY) of described brake, the control end of this plugging relay (BY) and the first switch, second switch parking in series loop (3), the normally-closed contact (BY-1) of described plugging relay (BY) accesses the performance loop (4) of brake；
Described delayer and second switch are integrated to a time-delay relay (KT)；The control of this time-delay relay (KT) terminates into parking testing circuit (2), and the normally-closed contact (KT-1) of time-delay relay (KT) accesses described parking loop (3)；Described first switch is safety return circuit state-detection relay (KBY), the control end of this safety return circuit state-detection relay (KBY) is connected with the output of described safety return circuit (1), and the normally-closed contact (KBY-1) of this safety return circuit state-detection relay (KBY) accesses described parking loop (3).
The delayed shutdown system of escalator the most according to claim 1 or moving sidewalk, it is characterized in that: described parking loop (3) is also in series with the 3rd switch (5), delayed shutdown system is additionally provided with the overspeed detection circuit (6) for sending cut-off signals to the 3rd switch (5).
The delayed shutdown system of escalator the most according to claim 2 or moving sidewalk, it is characterized in that: described parking loop (3) is also in series with the 4th switch (7), delayed shutdown system is additionally provided with the reverse testing circuit (8) for sending cut-off signals to the 4th switch (7).
The delayed shutdown system of escalator the most according to claim 3 or moving sidewalk, it is characterised in that: being also in series with the 5th switch (9) and two-stage delay circuit in described parking loop (3), described two-stage delay circuit includes:
First delayer (10), is triggered by described parking testing circuit (2)；
Second delayer (11), is triggered by the first delayer (10), and the control end of the output of the second delayer (11) and the 5th switch (9) connects, and sends cut-off signals to the 5th switch (9) after carrying out time delay according to default coasting time.
5. an escalator or the delayed shutdown method of moving sidewalk, it is characterized in that: include detecting safe condition and dead ship condition, when when safe condition and dead ship condition, any one meets trigger condition, brake is driven to brake, when safe condition meets trigger condition, brake is driven to brake at once；When dead ship condition meets trigger condition, brake is driven to brake after main control time delay again.
The delayed shutdown method of escalator the most according to claim 5 or moving sidewalk, it is characterized in that: described detection dead ship condition includes that detection drives motor status and step running status, when drive motor status and step running status any one meet trigger condition time, all think that dead ship condition meets trigger condition.
7. according to the delayed shutdown method of the escalator described in claim 5 or 6 or moving sidewalk, it is characterised in that: when step running status meets trigger condition, stop motor simultaneously and run.
8. according to the delayed shutdown method of the escalator described in claim 5 or 6 or moving sidewalk, it is characterised in that: when step running status meets trigger condition, also brake being carried out Redundant Control in addition to main control time delay, this Redundant Control includes:
After the first time delay, according to default coasting time as the second time delay；
After the second time delay, brake is driven to brake.
The delayed shutdown method of escalator the most according to claim 8 or moving sidewalk, it is characterised in that: during the second time delay, turning to and rotating speed of on-line checking motor, when turning to or time rotating speed occurs abnormal of motor, drive brake to brake immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019395.4A CN104692226B (en) | 2015-01-14 | 2015-01-14 | A kind of delayed shutdown system and method for escalator or moving sidewalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019395.4A CN104692226B (en) | 2015-01-14 | 2015-01-14 | A kind of delayed shutdown system and method for escalator or moving sidewalk |
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| Publication Number | Publication Date |
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| CN104692226A CN104692226A (en) | 2015-06-10 |
| CN104692226B true CN104692226B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510019395.4A Active CN104692226B (en) | 2015-01-14 | 2015-01-14 | A kind of delayed shutdown system and method for escalator or moving sidewalk |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105858430B (en) * | 2016-05-13 | 2017-11-07 | 杭州优迈科技有限公司 | A kind of soft stop vehicle control and soft stop control method |
| CN109279485A (en) * | 2018-10-24 | 2019-01-29 | 苏州威倍科动力科技有限公司 | Control method for the braking of the power loss of escalator and moving sidewalk |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2877136Y (en) * | 2006-03-14 | 2007-03-07 | 许晓华 | DC electric machine electromagnetic braking controller |
| CN202677105U (en) * | 2012-07-09 | 2013-01-16 | 兰如根 | Energy-saving power-off controller |
| CN103253588A (en) * | 2013-05-10 | 2013-08-21 | 康力电梯股份有限公司 | Additional brake power failure time-delay operation device |
| CN203451025U (en) * | 2013-07-16 | 2014-02-26 | 杭州优迈科技有限公司 | Power failure delay control circuit used in escalator additional brake |
| CN204474113U (en) * | 2015-01-14 | 2015-07-15 | 浙江西子重工机械有限公司 | The delayed shutdown system of a kind of escalator or moving sidewalk |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1081481A (en) * | 1996-09-06 | 1998-03-31 | Toshiba Corp | Control device of escalator |
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2015
- 2015-01-14 CN CN201510019395.4A patent/CN104692226B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2877136Y (en) * | 2006-03-14 | 2007-03-07 | 许晓华 | DC electric machine electromagnetic braking controller |
| CN202677105U (en) * | 2012-07-09 | 2013-01-16 | 兰如根 | Energy-saving power-off controller |
| CN103253588A (en) * | 2013-05-10 | 2013-08-21 | 康力电梯股份有限公司 | Additional brake power failure time-delay operation device |
| CN203451025U (en) * | 2013-07-16 | 2014-02-26 | 杭州优迈科技有限公司 | Power failure delay control circuit used in escalator additional brake |
| CN204474113U (en) * | 2015-01-14 | 2015-07-15 | 浙江西子重工机械有限公司 | The delayed shutdown system of a kind of escalator or moving sidewalk |
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| Publication number | Publication date |
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| CN104692226A (en) | 2015-06-10 |
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