CN108455432A - Escalator senses emergency stop device - Google Patents
Escalator senses emergency stop device Download PDFInfo
- Publication number
- CN108455432A CN108455432A CN201810411016.XA CN201810411016A CN108455432A CN 108455432 A CN108455432 A CN 108455432A CN 201810411016 A CN201810411016 A CN 201810411016A CN 108455432 A CN108455432 A CN 108455432A
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- China
- Prior art keywords
- relay
- circuit
- resistance
- escalator
- emergency stop
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Classifications
-
- 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
-
- 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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- Escalators And Moving Walkways (AREA)
Abstract
A kind of escalator sensing emergency stop device, it includes controller, it further include the emergency stop sensing zone of setting on the escalator, the controller include the first relay, the second relay, the first control relay circuit and the second control relay circuit, the first relay contact and the second relay contact series connection access escalator driving mechanism supply line in；Emergency stop sensing zone includes the first contact terminal and the second contact terminal that setpoint distance is kept under normality, under normal conditions, first control relay circuit and the second control relay circuit the first relay of driving and the second relay make the contact closure of the contact and the second relay of the first relay, in case of emergency, external force makes the first contact terminal and the second contact terminal contact, first control relay circuit and the second control relay circuit drive the first relay and the second relay that the contact of the first relay and/or the normal contact of the second relay is made to open, to keep escalator out of service.Escalator sensing emergency stop device provided by the invention is easy to use, dependable performance, can be manipulated with self-diagnosis system failure and Anywhere in escalator length range, to ensure the personal safety to passenger-in-elevator when contingency occurs.
Description
Technical field
Sense emergency stop device the present invention relates to a kind of escalator, more particularly to a kind of easy to use, dependable performance, can be with
Self-diagnosis system failure and the safe and reliable escalator sensing that can be Anywhere manipulated in escalator length range
Emergency stop device.
Background technology
The scram button of existing escalator is installed in the top of escalator or a scram button of bottom.When certainly
When passenger-in-elevator on dynamic staircase is because of unexpected cause danger, taking people apart from due to above-mentioned emergency stop open pipe is too far etc., it can not touch
And emergency stop open pipe, escalator can not stop rapidly, lead to that life injury of the passenger-in-elevator because falling generation occurs.
The Chinese utility model patent of notification number CN 205709419U discloses the safeguard protection dress on a kind of escalator
It sets, it includes drawstring and pull switch, and drawstring is disposed to extend the lower section in step or pedal along the length direction of escalator,
One end is fixed, and the other end is connected with pull switch；Pull switch is provided with for connection stay cord and switch contact is driven to move
Dynamic shake-up component, the stroke for touching component have pull-out triggering section, normal work section and triggering section of retracting successively from inside to outside,
When step or pedal are in the state of sinking, drawstring is pressed down and will touch component and be drawn out to pull-out triggering section, pull switch quilt
Trigger and send out the signal of stop escalator；When escalator is in normal operating conditions, touches component and be located at normal work
Make in section, pull switch is not triggered；When drawstring is broken, touches component and be retracted inwardly to triggering section of retracting, pull switch quilt
Trigger and send out the signal of stop escalator.
The Chinese utility model patent of notification number CN 206590751U discloses a kind of electricity cut-off type escalator safety
Protective device and escalator, it includes electricity cut-off type conductive plate and connecting plate, and conductive plate and connecting plate are along escalator length side
To being arranged in handrail lower part, the contact of the upper and lower circuit of conductive plate respectively with the emergency stop button up and down of escalator electrically connects
It connects.When the people for taking escalator occurs unexpected, directly electricity cut-off type conductive plate can be smashed by hand or foot, cut-out is certainly
Dynamic staircase control loop, to reach control escalator scram action, the mesh that protection passenger-in-elevator will not be injured by escalator
's.
In patent document 1, although the safety guard can realize the whole detection of the step or pedal of escalator,
Once there is the emergency for step or pedal, it can effectively ensure the life security of passenger, but be directed to and for example purchase
Object vehicle slides, artificial play quarrels and fights noisily tumble or other emergencies occur, which can not allow staircase to stop at all, and body is in ladder
Grade or pedal repeatedly scratch, and in turn result in personal safety accident.
The whole-process control during escalator operation may be implemented in the safety guard mentioned in patent document 2,
Once an emergency situation is encountered by passenger-in-elevator, emergency braking can be carried out to realize the person to escalator by smashing the action of conductive plate
The effect of protection.However, it may be a very quick moment that emergency, which on the one hand occurs, boarding person's development has limitation
Property；On the other hand it needs just trigger emergency stop switch by smashing conductive plate, and the power smashed is bigger, emergency situation servant
Sense of independence can reduce, so its drawback is also more apparent.Another problem is that its is complicated, and manufacturing cost is high, and
And be disposable products, operation and maintenance cost is all higher.It is also very big therefore, it is necessary to solve the problems, such as.
Invention content
The technological deficiency of contingency can not effectively be evaded to solve existing escalator, the object of the present invention is to provide one
Kind is easy to use, dependable performance, can be manipulated with self-diagnosis system failure and Anywhere in escalator length range
Safe and reliable escalator sense emergency stop device, to ensure the personal safety to passenger-in-elevator when contingency occurs.
To realize that the goal of the invention, the present invention provide a kind of escalator sensing emergency stop device comprising controller,
It is characterized in that, further includes the emergency stop sensing zone of setting on the escalator, the controller includes the first relay, the second relay
Device, the first control relay circuit and the second control relay circuit, the first relay contact and the series connection of the second relay contact
It accesses in the supply line of the driving mechanism of escalator；Emergency stop sensing zone includes the first contact that setpoint distance is kept under normality
Terminal and the second contact terminal, under normal conditions, the first control relay circuit and the second control relay circuit driving first after
Electric appliance and the second relay make the contact closure of the contact and the second relay of the first relay, and in case of emergency, external force makes
First contact terminal and the contact of the second contact terminal, the first control relay circuit and the second control relay circuit driving first
Relay and the second relay make the contact of the first relay and/or the normal contact of the second relay open, to make to help automatically
Ladder is out of service.
Preferably, control relay circuit includes sampler, and the sampler includes at least first resistor and second resistance,
Wherein, first resistor and second resistance are connected to after being in series between power supply and ground, and wherein intermediate node gives the first relay driving
The second relay drive circuit of circuit provides signal；The both ends of first resistor are connected to the first contact terminal and the second contact
Terminal.
Preferably, control relay circuit includes emergency stop detector, and the emergency stop detector includes first comparator, described
First comparator includes the first operational amplifier IC1,3rd resistor R9 and the 4th resistance R8, wherein 3rd resistor R9 is connected to
Between the output end and in-phase end of first operational amplifier, the output end of sampler is connected to the first operation through the 4th resistance R8 and puts
The in-phase end of big device, the first reference voltage are connected to the reverse side of the first operational amplifier.
Preferably, control relay circuit includes tracer, and the tracer includes second operational amplifier
IC2, the 5th resistance R11 and the 6th resistance R10, wherein the 5th resistance R11 is connected to the output end of second operational amplifier and same
Between phase end, the output end of sampler is connected to the reverse side of second operational amplifier, and the second reference voltage is through the 6th resistance R10
It is connected to the in-phase end of second operational amplifier, the first reference voltage is less than the second reference voltage.
Preferably, control relay circuit further includes " with door " circuit, " with the door " circuit include the first diode D1,
Second diode D2, the 7th resistance R12 and the 8th resistance R14, wherein the cathode of the first diode D1 is connected to first comparator
Output end, anode through the 7th resistance R12 and the 8th resistance R14 is connected to power supply；The cathode of second diode D2 is connected to
The output end of two comparators, anode are connected to power supply through the 7th resistance R12 and the 8th resistance R14.
Preferably, control relay circuit further includes driving circuit and latching circuit, when " with door " circuit output is low electricity
Usually, the driving circuit controls relay, its contact is made to disconnect, when no matter " with door " circuit output is high or low level, from
Lock circuit controls relay by driving circuit, its contact is made to remain open.
Preferably, the driving circuit includes the first transistor (Q1), and the output end of " with door " circuit is connected to the first crystalline substance
The base stage of body pipe, for the emitter of the first transistor through the 8th resistance eutral grounding, line packet of the collector through the first relay is connected to electricity
Source.
Preferably, the latching circuit includes second transistor (Q2), the 9th resistance (R17) and the tenth resistance (R18),
In, the emitter of second transistor is grounded, and collector is connected to the base stage of the first transistor, and the first end of the 9th resistance is through first
The line packet of relay is connected to power supply, and second end is connected to the base stage of second transistor；The first end of tenth resistance is connected to
The base stage of two-transistor, second end are connected to ground.
Preferably, emergency stop sensing zone be installed on escalator handrail side lower plate, skirt panel, handrail introducing port and/or from
Dynamic staircase upper and lower opening handrail position prevents the installation position of children from falling.
Preferably, the first contact terminal and the preparation that the second contact terminal is the flexible conducting material prepared by carbon material.
Compared with the safe emergency stop technology of existing escalator, escalator sensing emergency stop device provided by the invention is reachable
To following advantageous effect：A:It can implement, to the brake operating of escalator, to prevent unexpected thing in any position of escalator
Therefore to the injury of passenger.B：When the open circuit of safe flexible sensing buffer zone or Damage by Short Circuit, safety governor can send out failure and refer to
It enables, ensure that the reliability service of this security protection system.
Description of the drawings
Fig. 1 is the schematic cross-section of emergency stop sensing zone provided by the invention；
Fig. 2 is the schematic view of the mounting position of emergency stop sensing zone provided by the invention on the escalator；
Fig. 3 is button emergency stop sensing zone schematic diagram provided by the invention；
Fig. 4 is the built-up circuit figure of the controller of escalator sensing emergency stop device provided by the invention；
Fig. 5 is the control flow chart of escalator sensing emergency stop device provided by the invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indicating or implying relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Electrical connection, can also be to be connected directly, can also can also be the company inside two elements indirectly connected through an intermediary
It is logical, for the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 1 is the schematic cross-section of emergency stop sensing zone provided by the invention, as shown in Figure 1, according to one implementation of the present invention
Example, emergency stop sensing zone include the elastic housing 1 extended along first direction X and setting upper and lower surface and along the inside the shell
The first contact terminal 2 and the second contact terminal 3 that one direction extends, first contact terminal, 2 and second contact terminal 3 difference
Relatively prominent, the first contact terminal 2 is connect by conducting wire 5 with external circuit, and the second contact terminal 3 is connected by conducting wire 4 and external circuit
It connects, first direction is the direction of front and back extension in Fig. 1.
According to an embodiment of the present invention, the Y in a second direction of first contact terminal, 2 and second contact terminal 3 and
The section of third direction Z at least partially triangle.First direction X, second direction Y and third direction Z are in right-handed coordinate system.
First contact terminal 2 and the preparation that the second contact terminal 3 is the flexible conducting material prepared by carbon nanomaterial, it is non-
When stress, the first contact terminal 2 and the second contact terminal 3 are separated by the distance of setting, are connect in the first contact terminal and second
A cavity is formed between contravention.When stress, the first contact terminal 2 and the second contact terminal 3 are electrically connected with connection.It uses
When, the shell of emergency stop sensing zone is adhered to support surface by adhesive layer 15
Fig. 2 is the schematic view of the mounting position of emergency stop sensing zone provided by the invention on the escalator, as shown in Fig. 2, can incite somebody to action
Emergency stop sensing zone is mounted on the interior plate 11 under automatic staircase handrail band, such as button emergency stop sensing zone；Emergency stop can also be passed
Sense band is mounted on skirt panel position 12, such as button emergency stop sensing zone；Emergency stop sensing zone can also be protected mounted on inlet of handrail
To prevent children from falling on plate 13；Also emergency stop sensing zone to prevent foreign matter or can be crushed people on inlet of handrail backplate 14.From
Dynamic staircase manufacturer according to actual installation occasion and requirement, can determine setting and the installation type of emergency stop sensing zone.
Fig. 3 is that button emergency stop sensing zone schematic diagram provided by the invention is pressed as shown in figure 3, according to one embodiment
The corresponding site in staircase 6 is arranged in keyed emergency stop sensing zone.Multiple openings are evenly arranged with along first direction in escalator sidewall 6,
First direction is provided with the support slot 7 for accommodating emergency stop sensing zone, emergency stop sensing zone is adhered to support by adhesive layer 15
On surface in slot.The outwardly extending part in both sides top of the support slot 7 is fixed on the side of opening.Multiple openings are used for
Setting button component, the button assembly include key support 9, flexible keypad 8 and acrylic button shield window 10, the button branch
Frame 9 is set in opening and is used to support flexible keypad 8, it is generally the case that and the lower part of flexible keypad 8 is contacted with emergency stop sensing zone 1,
Button shield window 10 is set to 8 top of flexible keypad, in emergency circumstances when, user smashes button shield window 10, further presses
Compression elasticity button 8 makes the first of emergency stop sensing zone to connect contact terminal 2 and the second contact terminal 3 is in electrical contact.
Fig. 4 is the built-up circuit figure of the controller of escalator sensing emergency stop device provided by the invention, this is such as Fig. 4 institutes
Show, the controller includes the first relay J1, the second relay J2, the first control relay circuit and the control of the second relay
The power supply of the driving mechanism of circuit, the contact K1 of the first relay J1 and the contact K2 series connection access escalators of the second relay
In circuit, under normal conditions, the first contact terminal 2 and the second contact terminal 3 keep setpoint distance, the first control relay circuit and the
Two control relay circuits, which respectively drive the first relay and the second relay, makes contact and the second relay of the first relay
Normally-closed contact be closed.In case of emergency, emergency stop sensing zone, the first contact terminal 2 and the contact of the second contact terminal 3 are pressed,
First control relay circuit and the second control relay circuit respectively drive the first relay and the second relay make first after
The contact of electric appliance and/or the contact of the second relay are opened, to keep escalator out of service, in the present invention, and two-way relay
Device and its control circuit are mutually redundant setting, and such setting is the emergency stop device in order to prevent when driver breaks down all the way
It is out of control.
According to an embodiment of the present invention, controller includes sampler, and the sampler includes at least resistance R1 and resistance
R2, wherein resistance R1 and resistance R2 is connected to after being in series between power supply VCC1 and ground, and wherein intermediate node gives the first relay J1
Driving circuit the second relay J2 driving circuits provide signal；Two contact terminals of emergency stop sensing zone by conducting wire 4 and conducting wire 5 simultaneously
The both ends resistance R1 are coupled to, and by insuring resistance RS series connection.When a key is pressed, two contact terminal electricity of emergency stop sensing zone connect
It touches.
According to an embodiment of the present invention, control relay circuit further includes emergency stop detector, and the emergency stop detector includes the
One comparator, the first comparator include operational amplifier IC1, resistance R8 and resistance R9, wherein resistance R9 is connected to the first operation
Between the output end and in-phase end of amplifier IC1, the output end of sampler is connected to the same of the first operational amplifier IC1 through resistance R8
Xiang Duan, the first reference voltage are connected to the reverse side of the first operational amplifier IC1, and first reference voltage is by resistance R6, resistance
R5 and resistance R4 partial pressures obtain, and are applied to the voltage of the reverse side of the first operational amplifier,
Under normal circumstances, the in-phase end voltage of the first operational amplifier IC1 is more than its reverse phase terminal voltage, i.e.,, this
When, the output end of the first operational amplifier IC1 is high level, and the first control relay circuit drives relay J1 to be closed, to
Make escalator normal operation；When in case of emergency, when user's pressing keys component, SE is connected, the first operational amplifier IC1
Reverse phase terminal voltage be more than its in-phase end voltage, i.e.,, at this point, the output end of the first operational amplifier IC1 is low
Level, the first control relay circuit the first relay of driving J1 is disconnected, to keep escalator out of service.
According to an embodiment of the present invention, control relay circuit further includes tracer, the tracer institute
It includes second operational amplifier IC2, resistance R11 and resistance R10 to state the second comparator, wherein resistance R11 is connected to the second operation
Between the output end and in-phase end of amplifier IC2, the output end of sampler is connected to the reverse side of second operational amplifier IC2,
Second reference voltage is connected to the in-phase end of second operational amplifier IC2, and the first reference voltage is less than the second reference voltage.This hair
In bright, second reference voltage is obtained by resistance R6, resistance R5 and resistance R4 partial pressures, is applied to second operational amplifier IC2
In-phase end voltage.Under normal circumstances, the in-phase end of second operational amplifier IC2
Voltage is more than its reverse phase terminal voltage, i.e.,, at this point, the output end of second operational amplifier IC2 is high level, first
Control relay circuit drives relay J1 to be closed, to make escalator normal operation；In fault condition, insurance resistance RS is disconnected
When road or SE are disconnected with R1 emergency stop sensing zones, the reverse side of second operational amplifier IC2 is more than its in-phase end voltage, i.e.,, at this point, the output end of second operational amplifier IC2 is low level, the first control relay circuit driving first
Relay J1 is disconnected, to keep escalator out of service.
According to an embodiment of the present invention, it is additionally provided with low pass between sampler and emergency stop detector and tracer
Filter is made of resistance R7 and capacitance C3, be used to filter out high-frequency noise to prevent high-frequency noise to emergency stop detector and
The interference of tracer.
According to an embodiment of the present invention, control relay circuit further includes " with door " circuit, " with door " the circuit packet
Include diode D1, diode D2, pull-up resistor, wherein the cathode of diode D2 is connected to the output end of first comparator, anode
It is connected to power supply VCC1 through pull-up resistor；The cathode of diode D1 is connected to the output end of the second comparator, and anode is through pull-up electricity
Resistance is connected to power supply VCC1, and the pull-up resistor is connected in series by resistance R12 and resistance R14.The present invention in emergency stop detector and
" with door " circuit is set after tracer, is in order to no matter in case of emergency, still in case of a failure, all
Ensure that control relay circuit can be such that the normally-closed contact of relay disconnects, to keep escalator out of service.
According to an embodiment of the present invention, the control relay circuit further includes driving circuit and latching circuit, when " with
When door " circuit output is low level, the driving circuit controls relay, its contact is made to disconnect；No matter " with door " circuit output
For it is high/or when low level, latching circuit controls relay by driving circuit, its contact is made to remain open.The driving circuit
Including transistor Q1, the output end of " with door " circuit is connected to the base stage of transistor Q1, the transmitting of transistor Q1 through bleeder circuit
Pole is grounded, and line packet of the collector through the first relay J1 is connected to power supply.The latching circuit includes transistor Q2, resistance R17
With resistance R18, wherein the emitter of transistor Q2 is grounded, and collector is connected to the base stage of transistor Q1, and the of the R17 of resistance
One end line packet of the connection through relay J1 is connected to power supply, and second end is connected to the base stage of transistor Q2；The first of the R18 of resistance
End is connected to the base stage of transistor Q2, and second end is connected to ground.In the present invention, when user pushes button, IC1 exports low electricity
Flat, the base stage of diode D2 conductings, transistor Q1 is low electrode, and the contact of Q1 cut-offs, relay J1 disconnects, and staircase stops fortune
Row, transistor Q2 conductings, current collection extremely low potential, if at this point, user unclamps button, operational amplifier IC1 and IC2 output is high
Level, diode D1 and diode D2 cut-offs, power supply VCC1 provide high potential to the base stage of transistor Q1, but since Q2 is connected,
Therefore, keep Q1 still off, the contact of relay J1 disconnects, and staircase is still out of service.
According to an embodiment of the present invention, control relay circuit further includes third comparator, and third comparator includes fortune
The anode for calculating amplifier IC3 and resistance R12, diode D1 and diode D2 is connected to the same of operational amplifier IC3 through resistance R12
The reverse side of Xiang Duan, operational amplifier IC3 are connected to the second reference voltage, and the output end of operational amplifier IC3 connects through resistance R13
It is connected to the input terminal of relay driver, that is, the base stage of transistor Q1.When the output of first comparator and/or the second comparator
For low level when, the voltage of the in-phase end of operational amplifier IC3 is less than the voltage of its reverse side, exports as low level, so protects
The driving circuit of card relay makes the normally-closed contact of the first relay J1 disconnect；It is defeated when first comparator and the/the second comparator
Go out for high level when, the voltage of the in-phase end of operational amplifier IC3 is higher than the voltage of its reverse side, exports as high level, due to
There is latching circuit, as long as having been turned on emergency stop device, escalator is still out of service.
In the present invention, the purpose of setting C1, C2 and C3 are for filtering clutter.Between the collector and ground of transistor Q1
It is for protective relay that diode D3, which is arranged,.
In the present invention, the structure phase of the control circuit composition of the control circuit of the first relay J1 and the second relay J2
Together, include institute's emergency stop detector as described above, tracer, third comparator, relay drive circuit, no longer weigh here
It states.
Emergency stop device shown in Fig. 4 further passes through first comparator and the second comparator by the current potential of detection node C
Be compared respectively with the first reference voltage and the second reference voltage and decision circuitry whether failure or whether by by emergency stop by
Key crushes.
Fig. 5 is the control flow chart of escalator sensing emergency stop device provided by the invention, as shown in figure 5, according to this hair
Another bright embodiment, the present invention provides escalator sensing emergency stop device can also control the by judging the impedance of sensor
One and/or second relay working condition, specific steps include：
The step of judging sensor impedance in the step, if the impedance of sensor is more than the upper limit, illustrates that circuit is faulty,
Then the first control relay circuit makes the contact of the first relay and the second relay disconnect, in this way, escalator is out of service；
If the impedance of sensor be less than the upper limit, judge sensor impedance whether be less than lower limit, if it is, explanation have user by
Button sensing zone button has been pressed, has been crushed, object, which falls, waits cases of emergency, makes the first relay and the second relay
Normally closed disconnection, in this way, escalator is out of service；If the impedance of sensor be less than the upper limit, and be more than lower limit, illustrate circuit without
Failure and without case of emergency occur, then make the normally-closed contact of the first relay and the second relay be closed, the normal work of escalator
Make.In Fig. 4, sensor is in parallel to be in series with RS again and form by SE and resistance R1.According to another embodiment of the present invention, sensor
The resistance RX that can also be connected by emergency stop sensing zone is in parallel with resistance R1 again, then concatenates insurance resistance composition, the insurance again
Resistance is opened a way when electric current is larger.
Above in association with attached drawing, the operation principle of the present invention is described in detail.But those skilled in the art should
Understand, specification is only for interpreting the claims.But protection scope of the present invention is not limited to specification.It is any to be familiar with
In the technical scope that the present invention discloses, the variation or replacement that can be readily occurred in should all be contained those skilled in the art
Lid is within protection scope of the present invention.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.
Claims (10)
1. a kind of escalator senses emergency stop device comprising controller, which is characterized in that further include being arranged on the escalator
Emergency stop sensing zone, the controller include the first relay, the second relay, the first control relay circuit and the second relay
The supply line of the driving mechanism of device control circuit, the first relay contact and the second relay contact series connection access escalator
In；Emergency stop sensing zone includes the first contact terminal and the second contact terminal that setpoint distance is kept under normality, under normal conditions, the
One control relay circuit and the second control relay circuit drive the first relay and the second relay to make the first relay
The contact closure of contact and the second relay, in case of emergency, external force make the first contact terminal and the second contact terminal contact,
First control relay circuit and the second control relay circuit drive the first relay and the second relay to make the first relay
Contact and/or the second relay normal contact open, to keep escalator out of service.
2. escalator according to claim 1 senses emergency stop device, which is characterized in that control relay circuit includes adopting
Sample device, the sampler include at least first resistor and second resistance, wherein first resistor and second resistance connect after being in series
Between power supply and ground, wherein intermediate node provides signal to first the second relay drive circuit of relay drive circuit；First
The both ends of resistance are connected to the first contact terminal and the second contact terminal.
3. escalator according to claim 2 senses emergency stop device, which is characterized in that control relay circuit includes anxious
Stop detector, the emergency stop detector includes first comparator, the first comparator include the first operational amplifier (IC1),
3rd resistor (R9) and the 4th resistance (R8), wherein 3rd resistor (R9) is connected to the output end of the first operational amplifier and same
Between phase end, the output end of sampler is connected to the in-phase end of the first operational amplifier through the 4th resistance (R8), and first with reference to electricity
Pressure is connected to the reverse side of the first operational amplifier.
4. escalator according to claim 4 senses emergency stop device, which is characterized in that control relay circuit includes event
Hindering detector, the tracer includes second operational amplifier (IC2), the 5th resistance (R11) and the 6th resistance (R10),
Wherein, the 5th resistance (R11) is connected between the output end of second operational amplifier and in-phase end, the output end connection of sampler
In the reverse side of second operational amplifier, the second reference voltage is connected to the same of second operational amplifier through the 6th resistance (R10)
Xiang Duan, the first reference voltage are less than the second reference voltage.
5. escalator according to claim 4 senses emergency stop device, which is characterized in that control relay circuit further includes
" with door " circuit, " with the door " circuit include the first diode (D1), the second diode (D2), the 7th resistance (R12) and the
Eight resistance (R14), wherein the cathode of the first diode (D1) is connected to the output end of first comparator, and anode is through the 7th resistance
(R12) and the 8th resistance (R14) is connected to power supply；The cathode of second diode (D2) is connected to the output end of the second comparator,
Anode is connected to power supply through the 7th resistance (R12) and the 8th resistance (R14).
6. escalator according to claim 5 senses emergency stop device, which is characterized in that control relay circuit further includes
Driving circuit and latching circuit, when " with door " circuit output is low level, the driving circuit controls relay, makes its contact
It disconnects；When no matter " with door " circuit output is high or low level, latching circuit controls relay by driving circuit, makes its contact
It remains open.
7. escalator according to claim 6 senses emergency stop device, which is characterized in that the driving circuit includes first
The output end of transistor (Q1), " with door " circuit is connected to the base stage of the first transistor, and the emitter of the first transistor is through the 8th
Resistance eutral grounding, line packet of the collector through the first relay are connected to power supply.
8. escalator according to claim 7 senses emergency stop device, which is characterized in that the latching circuit includes second
Transistor (Q2), the 9th resistance (R17) and the tenth resistance (R18), wherein the emitter of second transistor is grounded, and collector connects
It is connected to the base stage of the first transistor, line packet of the first end through the first relay of the 9th resistance is connected to power supply, second end connection
In the base stage of second transistor；The first end of tenth resistance is connected to the base stage of second transistor, and second end is connected to ground.
9. sensing emergency stop device according to any escalators of claim 1-8, which is characterized in that emergency stop sensing zone is installed
Prevent children from falling in escalator handrail side lower plate, skirt panel, handrail introducing port and/or escalator upper and lower opening handrail position
The installation position fallen.
10. escalator according to claim 9 senses emergency stop device, which is characterized in that the first contact terminal and second
Contact terminal is the preparation of the flexible conducting material prepared by carbon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411016.XA CN108455432A (en) | 2018-05-02 | 2018-05-02 | Escalator senses emergency stop device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810411016.XA CN108455432A (en) | 2018-05-02 | 2018-05-02 | Escalator senses emergency stop device |
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| Publication Number | Publication Date |
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| CN108455432A true CN108455432A (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810411016.XA Pending CN108455432A (en) | 2018-05-02 | 2018-05-02 | Escalator senses emergency stop device |
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| CN (1) | CN108455432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022244239A1 (en) * | 2021-05-21 | 2022-11-24 | 三菱電機株式会社 | Passenger conveyor control device |
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2018
- 2018-05-02 CN CN201810411016.XA patent/CN108455432A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022244239A1 (en) * | 2021-05-21 | 2022-11-24 | 三菱電機株式会社 | Passenger conveyor control device |
| JP7408014B2 (en) | 2021-05-21 | 2024-01-04 | 三菱電機株式会社 | Passenger conveyor control device |
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