CN110077929A - Install the shallow pit electrical system of elevator additional - Google Patents
Install the shallow pit electrical system of elevator additional Download PDFInfo
- Publication number
- CN110077929A CN110077929A CN201910433226.3A CN201910433226A CN110077929A CN 110077929 A CN110077929 A CN 110077929A CN 201910433226 A CN201910433226 A CN 201910433226A CN 110077929 A CN110077929 A CN 110077929A
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- contact
- elevator
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- normally opened
- reset
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses a kind of shallow pit electrical systems for installing elevator additional comprising security system and reset controlling system；Security system includes and safely moves control loop and elevator motion control circuit, and safe action control loop includes the bistable switch and a safety switch controller being connected in series, and bistable switch is associated with the manual folding condition of the bottom layer door of elevator；Elevator motion control circuit is used for the on off operating mode of operation contactor and band-type brake contactor according to the state control elevator for stopping stop device and safety switch controller；Reset controlling system includes the reset circuit being electrically connected with elevator control system, resets circuit and is used for according to the state reset bistable switch for stopping stop device and safety switch controller；The shallow pit electrical system of elevator is installed additional by aforementioned present invention, so that the operational safety of shallow pit elevator and maintenance safety all meet the requirement of the new safety standard to shallow pit elevator, so that the security performance of shallow pit elevator be effectively ensured.
Description
Technical field
The present invention relates to aging blocks (existing structures) to install elevator technology field more particularly to a kind of shallow bottom for installing elevator additional additional
Cheat electrical system.
Background technique
With progress of the epoch, national policy gradually increases the support that aging blocks are installed additional with elevator, to improve the elderly or more
The predicament of stair.Concerned countries standard, the requirement to the buried depth of building underground utilities are commonly 0.7m (below non-motorized lane),
Because most of underground utilities (coal gas, cable, water pipe etc.) are embedded in the place of underground about 0.7m depth, digging down can be pipeline
It digs and breaks, and if mobile pipeline project amount is very big, expense is also very high, and most of all hold is dared not accept.For conventional elevator, it is
It can guarantee that safety of the maintenance personal in pit overhaul, elevator shaft pit must have enough safe spaces.By normal
The depth that situation will meet this space pit at least needs 1.1m, for largely installing additional for elevator, it is clear that 0.7m cannot
Meets the needs of pit safe space.For the shallow pit for solving the problems, such as above-mentioned installation elevator, relevant departments advise for elevator is installed additional
Having determined new installation safety standard, " GB 28621-2012 is installed on the manufacture of new elevator and installation safety rule in existing structure
Model ", and the electrical system of existing elevator is not able to satisfy the safety standard (especially therein 5.7 and 5.8), it is therefore desirable to adding
Dress elevator redesigns the electrical system for meeting safety standard requirements.
Summary of the invention
The purpose of the present invention is provide a kind of new installation elevator to adapt to the installation safety standard for installation elevator
Shallow pit electrical system, with guarantee install additional elevator operation and maintenance safety.
To achieve the goals above, the invention discloses a kind of shallow pit electrical system for installing elevator additional, the pits of elevator
Inside be provided with it is foldable only stop device, when it is described only stop device be in extended state when, it is described stop stop device can limit elevator
The downlink of carriage, which is characterized in that the shallow pit electrical system includes security system and reset controlling system；The safety system
System includes and safely moves control loop and elevator motion control circuit, and the safe action control loop includes being connected in series
The manual folding condition of the bottom layer door of one bistable switch and a safety switch controller, the bistable switch and elevator closes
Connection；The elevator motion control circuit is used to control elevator according to the only state of stop device and the safety switch controller
Operation contactor and band-type brake contactor on off operating mode；The reset controlling system includes being electrically connected with elevator control system
Reset circuit, the circuit that resets is used for according to described in the state reset for stopping stop device and the safety switch controller
Bistable switch.
Compared with prior art, the shallow pit electrical system that the present invention installs elevator additional is provided with security system and resets control
System, the bistable switch being set in security system are associated with the manual folding condition of the bottom layer door of elevator, and elevator is normal
When operation, elevator floor layer door is in automatic open-close state, and only stop device is in folding state, and it is dynamic that bistable switch connects safety
Make circuit, so that safety switch controller acts, so that elevator motion control circuit is connected, operation contactor and band-type brake are connect
Tentaculum works normally；When elevator needs to safeguard, elevator floor layer door is opened manually first, at this point, bistable switch acts, make
Control loop disconnection must be safely moved, safety switch controller working condition changes, so that elevator motion control returns
Road disconnects, and the operation contactor of elevator and the wire loop of band-type brake contactor disconnect, and elevator exits normal operating condition, then,
Only extended state will be placed in by stop device manually, to guarantee the maintenance space needs of shallow pit, to guarantee to safeguard people during maintenance
The personal safety of member；In addition, due to resetting circuit according to the state reset of the only stop device and the safety switch controller
The bistable switch, it can be ensured that only stop device is just capable of resetting elevator by folding while in the case that elevator floor layer door is closed,
It follows that both ensure that elevator under conditions of shallow pit by the shallow pit electrical system that aforementioned present invention installs elevator additional
Normal operation, also ensure safety problem of the elevator in maintenance process, meet to install additional elevator new safety standard want
It asks.
Preferably, described be only provided on stop device for detecting the only normally closed folding contact of stop device state and often
Open stretching, extension contact, when it is described only stop device be in folding state when, the normally closed folding contact is in the conductive state, described normally opened
Stretching, extension contact be in an off state, when it is described only stop device be in extended state when, the normally opened stretching, extension contact in connection shape
State, the normally closed folding contact are in an off state；The elevator motion control circuit includes and the operation contactor and institute
The first switch circuit of band-type brake contactor series connection is stated, the first switch circuit includes the normally closed folding being connected in series
Contact and the normally opened stretching, extension contact, and the both ends of the normally opened stretching, extension contact are also parallel with one and the safety switch controller
Associated normally opened safety contact.
Preferably, being also equipped with foldable toeguard on the bottom plate of lift car, it is equipped with and is used on the toeguard
The normally closed spats plate contact for detecting spats board status, when the toeguard is in folding state, the normally closed spats plate contact
In an ON state；The spats plate contact is serially connected in the first switch circuit.
Preferably, the elevator motion control circuit further includes connecting with the operation contactor and the band-type brake contactor
Connection and the second switch circuit being connected in parallel with the first switch circuit, the second switch circuit include a normally opened car top
Contact is overhauled, which can connect second switch by the normally opened stretching, extension contact in first switch circuit and return
Road.
Preferably, the shallow pit electrical system for installing elevator additional further includes the normally closed interpole being mounted in elevator shaft
Contact is limited, the normally closed additional limit contact movement before carriage goes downwards to extreme position, the normally closed additional limit contact string
It is associated in the second switch circuit.
Preferably, the elevator motion control circuit further include respectively with the operation contactor and the band-type brake contactor
The third switching circuitry and the 4th switching circuitry of series connection, the third switching circuitry include be connected in series elevator one often
Open urgent electronic knob contact and a normally opened maintenance uplink contact, the normally opened urgent electronic knob contact and the touching of normally opened maintenance uplink
It is provided with the first connecting pin between point, the normally opened car top overhauling contact in the second switch circuit and described normally closed additional
It is provided with second connection end between limit contact, first connecting pin and the second connection end are electrically connected, and described the
Three switching circuitries can also connect circuit by the normally opened stretching, extension contact in the first switch circuit；Described 4th switchs back
Road includes a normally opened urgent electronic knob contact of the elevator being connected in series and a normally opened urgent electronic uplink contact of elevator；Institute
State the normally opened urgent electronic knob contact in third switching circuitry and the urgent electronic knob contact in the 4th switching circuitry
Synchronization action.
Preferably, the reset controlling system further includes being electrically connected with the maintenance uplink signal end on elevator control system
Maintenance uplink circuit and on elevator control system maintenance downlink signal end be electrically connected maintenance downlink circuit, the inspection
Build row circuit include be connected in series with the normally closed safety contact of safety switch controller associated one and a normally opened maintenance uplink
Contact；The maintenance downlink circuit includes the normal with the normally closed safety contact of safety switch controller associated one and one of series connection
Open maintenance downlink contact.
Preferably, being additionally provided on the elevator motion control circuit and the operation contactor and the band-type brake contactor
The normally closed reset switch contact being connected in series；The circuit that resets includes for making the security system system reset
One resets circuit, and described first resets the normally closed folding contact that circuit includes series connection, is associated with safety switch controller
A normally closed safety contact, a normally closed car top overhauling contact, a normally opened reset switch contact and a reset controller, the reset
Controller is used to control the state of the bistable switch；The normally closed reset switch contact and the normally opened reset switch contact
It is associated with a reset switch.
Preferably, it is described reset circuit further include one be used for so that the elevator control system of elevator resetted it is second multiple
Position circuit, second reset circuit include that the normally closed folding contact being connected in series, one and the safety switch controller close
The normally closed urgent electronic contact of the normally opened safety contact and one of connection, described second resets on circuit and the elevator control system
Urgent electromotive signal end is electrically connected.
Preferably, the reset controlling system further includes electrically connecting with the urgent electronic uplink signal end of elevator control system
The urgent electronic uplink circuit that connects and with the urgent electronic downlink signal end of elevator control system be electrically connected it is urgent it is electronic under
Row circuit, the urgent electronic uplink circuit include the normally opened urgent electronic contact being connected in series and one it is normally opened it is urgent it is electronic on
Row contact, the urgent electronic downlink circuit include the normally opened urgent electronic contact being connected in series and one it is normally opened it is urgent it is electronic under
Row contact；The normally opened urgent electronic contact and institute in the urgent electronic uplink circuit and the urgent electronic downlink circuit
State the normally closed urgent electronic contact synchronization action in the second reset circuit.
Preferably, being also in series with the safety and loop of the door lock of elevator in the elevator motion control circuit；The safety system
A door lock measure loop is also set up in system, the door lock measure loop includes the elevator safety and loop of the door lock being connected in series
And door lock controller；First reset is also connected in series with a normally opened door lock contact in circuit, the normally opened door lock contact with
The door lock contactor association.
Preferably, the reset controlling system further includes an alarm circuit, the alarm circuit includes one be connected in series
It is normally closed only to suspend folding contact, one and the normally closed safety contact of safety switch controller associated one and an alarm.
Detailed description of the invention
Fig. 1 is the theory structure schematic diagram of the security system for the shallow pit electrical system that the embodiment of the present invention installs elevator additional.
Fig. 2 is the theory structure signal of the reset controlling system for the shallow pit electrical system that the embodiment of the present invention installs elevator additional
Figure.
Fig. 3 is the structural schematic diagram that elevator is in maintenance state in the embodiment of the present invention.
Fig. 4 is the structural schematic diagram that elevator is in normal operating condition in the embodiment of the present invention.
Fig. 5 is the mounting structure schematic diagram of toeguard in the embodiment of the present invention.
Specific embodiment
For technology contents, structure feature, realization principle and the objects and the effects that the present invention will be described in detail, tie below
It closes embodiment and attached drawing is cooperated to be explained in detail.
The invention discloses a kind of shallow pit electrical systems for installing elevator additional, and it is suitable in aging blocks (existing structure)
Install additional shallow pit elevator in, the shallow pit in the present embodiment refer to pit depth be less than normal elevator safety depth, one
As for 0.7m or so, since pit is than shallower, to guarantee enough maintenance spaces, only 10 needs of stop device that are set in pit
Be set as can folding, only stop device 10 should have and lie low in the folding state (such as Fig. 4) in pit and vertically extend pit
Extended state (such as Fig. 3), elevator operate normally when, need to stop stop device 10 and be adjusted to folding state, to guarantee lift car
It can go downwards at pit, when needing to safeguard elevator, need to stop stop device 10 and be adjusted to extended state, at this point, only stop device 10
It reaches above pit, to limit the downstream position of lift car, to guarantee the person peace for the maintenance personnel being located in pit
Entirely, after maintenance work, also to guarantee that only stop device 10 is located at folding state could reset elevator.In this regard, being
Guarantee that the operation of above-mentioned elevator meets the safety standard requirements of shallow pit, the electrical system in the present embodiment includes security system
(such as Fig. 1) and reset controlling system (such as Fig. 2), by security system control lift car safe operation at nominal conditions with
And stop to operate normally under abnormal condition, guarantee the safety reset of elevator by reset controlling system.
Such as Fig. 1, security system includes and safe action control loop H1 and elevator motion control circuit H2, safe action control
Circuit H1 processed includes the bistable switch AIDS being connected in series and a safety switch controller J5, bistable switch AIDS and electricity
The manual folding condition association of the bottom layer door of ladder, when elevator floor layer door is manually opened, bistable switch AIDS is disconnected.
Elevator motion control circuit H2 is used to be connect according to the operation for the state control elevator for stopping stop device 10 and safety switch controller J5
The on off operating mode of tentaculum J1 and band-type brake contactor J2.Such as Fig. 2, reset controlling system includes being electrically connected with elevator control system
Circuit H3 is resetted, circuit H3 is resetted and is used for according to the state reset bistable switch for stopping stop device 10 and safety switch controller J5
AIDS could make bistable switch AIDS reset that is, only when only stop device 10 is in folding state, in connection shape
State, so that elevator resets, meanwhile, also only judge that elevator is in abnormal operational conditions feelings according to safety switch controller J5
Elevator could be resetted under condition.It can thus be appreciated that the shallow pit electrical system of elevator is installed additional by aforementioned present invention, at shallow bottom
Under conditions of hole, the normal operation of elevator both ensure that, and also ensured safety problem of the elevator in maintenance process, met to adding
Fill the new safety standard requirements of elevator.In the present embodiment, safety switch controller J5 is a multicontact switch contactor.
As depicted in figs. 1 and 2, the normally closed folding contact for detecting only 10 state of stop device is only provided on stop device 10
ZTSH1, ZTSH2 and normally opened stretching, extension contact ZTSZ.When only stop device 10 is in folding state, normally closed folding contact ZTSH1,
ZTSH2 is in the conductive state, and normally opened stretching, extension contact ZTSZ is in an off state；When only stop device 10 is in extended state, often
Open stretching, extension contact ZTSZ in an ON state, normally closed folding contact ZTSH1, ZTSH2 are in an off state.Referring to Fig. 1,
Elevator motion control circuit H2 includes the first switch circuit H20 being connected in series with operation contactor J1 and band-type brake contactor J2,
First switch circuit H20 includes the normally closed folding contact ZTSH1 and normally opened stretching, extension contact ZTSZ being connected in series, and normally opened stretching, extension is touched
The both ends of point ZTSZ are also parallel with one and the associated normally opened safety contact SS1 of safety switch controller J5.Under elevator normal condition,
Only stop device 10 is in folding state, and therefore, normally closed folding contact ZTSH1 is in the conductive state, at normally opened stretching, extension contact ZTSZ
In off-state, control loop H1 is safely moved in an ON state, safety switch controller J5 is in attracting state, so that often
Safety contact SS1 movement is opened on state, so that elevator motion control circuit H2 is connected, operation contactor J1 and band-type brake contact
Device J2 is worked normally.When safely moving control loop H1 disconnection, safety switch controller J5 cannot be attracted, and lead to safety contact
SS1 is disconnected, so that elevator motion control circuit H2 is disconnected, operation contactor J1 and band-type brake contactor J2 cannot be attracted, and elevator is just
Often operation is aborted.
Such as Fig. 3 to Fig. 5, unlike traditional elevator, in the shallow pit electrical system that the present invention installs elevator additional, elevator
Foldable toeguard 11 is also equipped on the bottom plate 13 of carriage, when elevator is in normal condition, toeguard 11 is in folding shape
State does not influence the normal downlink of lift car, when elevator be in maintenance state or it is oppressive when, toeguard 11 is gone into stretch-like
State, when avoiding cannot completing operation to level position because of lift car caused by make a misstep accident.It is equipped on toeguard 11 for examining
The normally closed spats plate contact TGS for surveying 11 state of toeguard, when toeguard 11 is in folding state, normally closed spats plate contact TGS
In an ON state, normally closed spats plate contact TGS is serially connected in the H20 of first switch circuit.In the present embodiment, pass through normally closed spats
The setting of plate contact TGS further enhances elevator operation so that the normal operation of elevator is controlled by the state of toeguard 11
Safety.It is further to note that the overturning structure of the toeguard 11 either in the present embodiment is also or above-described embodiment
In the overturning structure of only stop device 10 be that techniques known is attempted, therefore details are not described herein.
Further, elevator motion control circuit H2 further includes being connected in series with operation contactor J1 and band-type brake contactor J2
And the second switch circuit H21 being connected in parallel with first switch circuit H20, second switch circuit H21 include a normally opened car top inspection
Contact A K21 is repaired, which can be connect by the normally opened stretching, extension contact ZTSZ in the H20 of first switch circuit
Logical second switch circuit H21.In the present embodiment, by the setting of second switch circuit H21, when elevator stops to operate normally,
Elevator motion control circuit H2 can be connected by second switch circuit H21, so that elevator can overhaul upstream or downstream.Preferably,
When elevator is in maintenance state, pit is hit to avoid lift car from striking only stop device 10 and toeguard 11, it can be
One normally closed additional limit switch 12 is installed in elevator shaft, is provided on the additional limit switch 12 for detecting car position
Normally closed additional limit contact A ULS, before carriage maintenance goes downwards to extreme position, as carriage strikes only stop device 10, toeguard
Before 11 strike pit, carriage hits additional limit switch 12, and normally closed additional limit contact A ULS is disconnected, and adds limit contact string
It is associated in the H21 of second switch circuit.When overhauling elevator comes downwards to extreme position, normally closed additional limit contact A ULS is disconnected, electricity
Ladder stops.
Further, elevator motion control circuit H2 further includes connecting respectively with operation contactor J1 and band-type brake contactor J2
The third switching circuitry H22 and the 4th switching circuitry H23 of connection, third switching circuitry H22 include the one of the elevator being connected in series
The normally opened urgent electronic normally opened maintenance uplink contact A DS1 of knob contact A K11 and one, the normally opened urgent electronic knob contact A K11 with
The first connecting pin A, the normally opened car top overhauling contact in the H21 of second switch circuit are provided between normally opened maintenance uplink contact A DS1
It is electrical that second connection end B, the first connecting pin A and second connection end B are provided between AK21 and normally closed additional limit contact A ULS
Connection, and third switching circuitry H22 can also connect circuit by the normally opened stretching, extension contact ZTSZ in the H20 of first switch circuit.It is logical
The the first connecting pin A and second connection end B being electrically connected are crossed, during car top overhauling, when carriage comes downwards to the normally closed additional limit
When contact A ULS is acted, maintenance uplink contact A DS can be acted, so that carriage overhauls uplink.4th switching circuitry H23 includes series connection
A normally opened urgent electronic uplink contact A S1 of the normally opened urgent electronic knob contact A K11 ' of the one of the elevator of connection and elevator.Third
The normally opened urgent electronic knob in normally opened urgent electronic knob contact A K11 and the 4th switching circuitry H23 in switching circuitry H22
Contact A K11 ' synchronization action.In the present embodiment, by the setting of third switching circuitry H22 and the 4th switching circuitry H23, when pressing
Normally opened urgent electronic knob contact when lower urgent electronic rotary switch, in third switching circuitry H22 and the 4th switching circuitry H23
AK11, AK11 ' it connects, then lift car can realize urgent uplink, urgent downlink, maintenance uplink and maintenance downlink.
As shown in Fig. 2, reset controlling system further includes being electrically connected with the maintenance uplink signal end on elevator control system
Maintenance uplink circuit and the maintenance downlink circuit that is electrically connected with the maintenance downlink signal end on elevator control system, in maintenance
Row circuit include be connected in series with the associated one normally opened maintenance uplink of normally closed safety contact SS4 and one of safety switch controller J5
Contact A DS2；Maintenance downlink circuit include be connected in series with the normally closed safety contact SS4 of safety switch controller J5 associated one
With a normally opened maintenance downlink contact A DX.In the present embodiment, due to maintenance uplink circuit and overhaul downlink circuit with normally closed safety
Contact SS4 series connection, so maintenance uplink and downlink just can be achieved in the case that only safe action control loop H1 is disconnected.This
In embodiment, the maintenance signal end of elevator control system and a normally closed car top overhauling contact A K22 are electrically connected, while above-mentioned inspection
Build connect in row circuit and maintenance downlink circuit a normally opened car top overhauling contact A K22', and the normally opened car top overhauling contact
AK22' and normally closed car top overhauling contact A K22 links.
Further, it such as Fig. 1 and Fig. 2, is additionally provided with and operation contactor J1 and band-type brake on the H2 of elevator motion control circuit
The normally closed reset switch contact FWS that contactor J2 is connected in series, resetting circuit includes for making that security system resets
One resets circuit H30, and the first reset circuit H30 includes that the normally closed folding contact ZTSH2 being connected in series and safety switch control
The normally closed safety contact SS2 of device J5 associated one, a normally closed car top overhauling contact A K23, a normally opened reset switch contact FWS2 and one
Reset controller J4, reset controller J4 are used to control the state of bistable switch AIDS；Normally closed reset switch contact FWS1 and
Normally opened reset switch contact FWS2 is associated with a reset switch, i.e., when reset switch acts, normally closed reset switch contact
FWS1 is disconnected, and normally opened reset switch contact FWS2 is connected.The setting for resetting circuit H30 by first only meets simultaneously and only stops
When device 10 is in folding state, elevator is in abnormal operational conditions, car top overhauling terminates these conditions, elevator could be answered
Position, and ensure that elevator operating loop is in an off state when elevator reset, to ensure that the safety reset of elevator.Preferably
Ground, resetting circuit further includes one for so that the second reset circuit H31 that the elevator control system of elevator is resetted, second is multiple
Position circuit H31 includes the associated normally opened safety of normally closed folding contact ZTSH2, one and safety switch controller J5 being connected in series
The normally closed urgent electronic contact A K12 of contact SS3 and one, second resets the urgent electronic letter on circuit H31 and elevator control system
Number end be electrically connected.Circuit H31 is resetted by second, only stop device 10 is in folding state, elevator is in abnormal running
Elevator control system reset when state, urgent electronic knob are not acted, elevator are restored to normal operating condition.
As shown in Fig. 2, reset controlling system further includes an alarm circuit, alarm circuit include be connected in series one it is normally closed only
Suspend the folding normally closed safety contact SS2 of a contact ZTSH2, one and safety switch controller J5 associated one and alarm BJ.It is logical
The setting for crossing the alarm circuit, when opening elevator floor layer behind the door manually, if only stop device is not opened to extended state,
Alarm circuit is connected, and alarm BJ issues alarm signal.In the present embodiment, alarm BJ is combined aural and visual alarm.
In addition, reset controlling system further includes tight with the urgent electronic uplink signal end electric connection of elevator control system
Uplink circuit and the urgent electronic downlink circuit with the urgent electronic downlink signal end electric connection of elevator control system are moved in urgent telegram,
Urgent electronic uplink circuit includes the normally opened urgent normally opened urgent electronic uplink contact electronic contact A K12 ' and one being connected in series
AS2, urgent electronic downlink circuit include the normally opened urgent normally opened urgent electronic downlink of electronic contact A K12 ' and one being connected in series
Contact A X；Normally opened urgent electronic contact A K12 ' in urgent electronic uplink circuit and urgent electronic downlink circuit is resetted with second
Normally closed urgent electronic contact A K12 synchronization action in circuit H31.
Preferably, being also in series with the safety and loop of the door lock of elevator in the H2 of elevator motion control circuit.In security system also
One door lock measure loop is set, and door lock measure loop includes the elevator safety being connected in series and loop of the door lock H4 and door lock controller
A normally opened door lock contact JMS, normally opened door lock contact JMS and door lock contactor are also connected in series in J3, the first reset circuit H30
J3 association.Elevator safety and loop of the door lock H4 are connected in the H2 of elevator motion control circuit, it is ensured that when elevator operates normally
Elevator door and all safety switches are in closed state, to guarantee the safe operation of elevator.When the door lock and safety open of elevator
When pass is in safe condition, door lock contactor J3 is attracted, and normally opened door lock contact JMS is connected, and the first reset circuit just can turn on.
In conjunction with above-described embodiment and Fig. 1 and Fig. 2, the shallow pit electrical system of elevator is installed additional the following detailed description of the present invention
Principle is labeled with 301 to 309 9 circuits for ease of description, being labeled with 101 to 108 8 circuit nodes in Fig. 1 in Fig. 2
Node.
1, reason Fig. 1, this primary Ioops of node 101 → 102 → 103 → 105 → 106 → 108: elevator normal condition are please referred to
Under, the normally opened stretching, extension contact ZTSZ between node 105 and node 106 is disconnected, and safety contact SS1 is connected, and elevator motion control returns
Road H2 is connected, the wire loop of operation contactor J1 and band-type brake contactor J2 respectively in the output end M1Y1 of elevator control system and
It can be attracted under the control of M2Y2.When manual opening enters the bottom layer door of pit, bistable switch AIDS is disconnected, safety switch
Controller J5 release, safety contact SS1 are disconnected, and operation contactor J1 and band-type brake contactor J2 cannot be attracted, and elevator stops normal
Operating status；And when first resets circuit H30 and second and reset circuit H31 connection, bistable switch AIDS is connected, safety open
It closes controller J5 to be attracted, safety contact SS1 is connected, and the wire loop of operation contactor J1 and band-type brake contactor J2 can connect again
It is logical.
2, referring to Fig. 2, node 301 → 302 → 303 → 304: elevator normally closed car top overhauling contact not in inspecting state
AK23 is just connected, and only stop device 10 is in folding state and the hoistway door of whole all closes locking and all elevator safeties switch
When being in closed state, door lock contactor J3 is just attracted (its normally opened door lock contact JMS is just connected), while meeting this several points,
The reset controller J4 of bottom layer door bistable switch AIDS can just be connected, and reset is only effectively, to guarantee multiple safely
Position.
3, referring to Fig. 1,103 → 104 → 105: when overhaul running state of elevator, only stop device 10 is in extended position, often
Folding contact ZTSH1 disconnection is closed, normally opened car top overhauling contact A K21 is connected, and lift car will strike removable only stop device
When 10, normally closed additional limit contact A ULS is disconnected, prevent the wire loop of operation contactor J1 and band-type brake contactor J2 are from connecing
Logical, elevator cannot be run；If overhauling uplink, normally opened maintenance uplink contact A DS1 is connected, so that node 104 to 105 is connected, electricity
Ladder can be run.
4, referring to Fig. 2,301 → 302 → 309: when only stop device 10 is in folding state, normally closed folding contact
ZTSH2 is just connected, and the bistable switch AIDS for representing elevator safety movement is in closed state, and safety switch controller J5 inhales
It closes, normally opened safety contact SS3 is attracted, and two o'clock meets simultaneously, and node 301 to 309 is just connected, and elevator control system can just exit
Urgent motoring condition, elevator could operate normally.
5, the node 301 → 302 → 303 → 308 of Fig. 2 is please referred to: double when manual opening enters the bottom layer door of pit
Stable state switch AIDS is disconnected, so that safety switch controller J5 be made to discharge, normally closed safety contact SS2 is connected, only at stop device 10
When folding state, normally closed folding contact ZTSH2 is connected, so combined aural and visual alarm BJ obtains electric, sending vision and audible signal,
Prompt stops stop device 10 and is in non-action position；When that will stop the expansion of stop device 10 manually, normally closed folding contact ZTSH2 is disconnected
It opens, acoustic-optic alarm BJ power loss, stops vision and audible signal.
6, for toeguard 11, referring to Fig. 1, node 103 → 104 → 105: under elevator normal condition, normally opened car top inspection
Repair contact A K21 and normally opened urgent electronic normally opened contact AK11, AK11 ' all disconnect, when normally closed toeguard TGS is disconnected, then node
103 to 104 and 103 to 105 all disconnect, and will make the wire loop of operation contactor J1 and band-type brake contactor J2 not and can turn on,
Elevator normal operation is stopped.When inspection travel or urgent electric operation, normally opened car top overhauling contact A K21 or normally opened tight
Knob contact A K11, AK11 is moved in urgent telegram ' it connects, only in extended position, normally closed folding contact ZTSH1 is disconnected stop device 10, normally opened
Contact ZTSZ is stretched to connect, when the toeguard 11 not withdrawn will collide with pit ground, normally closed additional limit contact
AULS is disconnected, if maintenance downlink, node 104 to 105 not can turn on (or urgent electronic downlink then node 104 to 105,107
Not can turn on to 108) so that the wire loop of operation contactor J1 and band-type brake contactor J2 not can turn on, elevator cannot be transported
Row.When overhauling uplink, normally opened maintenance uplink contact A DS1 connects (normally opened urgent electronic or when urgent electronic uplink
Uplink contact A S1 is connected) so that terminal 103 to 106 is connected, elevator can be run.
To sum up, the shallow pit electrical system of elevator is installed additional by aforementioned present invention, so that the operational safety of shallow pit elevator
All meet the requirement of the new safety standard to shallow pit elevator with maintenance safety, so that the peace of shallow pit elevator be effectively ensured
Full performance.
The above disclosure is only a preferred example of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (12)
1. a kind of shallow pit electrical system for installing elevator additional is provided with foldable only stop device in the pit of elevator, when described
When only stop device is in extended state, the only stop device can limit the downlink of lift car, which is characterized in that the shallow pit
Electrical system includes security system and reset controlling system；The security system includes transporting with safe action control loop and elevator
Row control loop, the safe action control loop includes the bistable switch and a safety switch controller being connected in series,
The bistable switch is associated with the manual folding condition of the bottom layer door of elevator；The elevator motion control circuit is used for basis
The only state of stop device and the safety switch controller control operation contactor of elevator and the on-off of band-type brake contactor
State；The reset controlling system includes the reset circuit being electrically connected with elevator control system, and the reset circuit is used for root
According to bistable switch described in the only state reset of stop device and the safety switch controller.
2. the shallow pit electrical system according to claim 1 for installing elevator additional, which is characterized in that set on the only stop device
It is equipped with the normally closed folding contact and normally opened stretching, extension contact for detecting the only stop device state, is received when the only stop device is in
When folding state, the normally closed folding contact is in the conductive state, and the normally opened stretching, extension contact is in an off state, and only stops when described
When device is in extended state, in an ON state, the normally closed folding contact is in an off state for the normally opened stretching, extension contact；
The elevator motion control circuit includes that the first switch being connected in series with the operation contactor and the band-type brake contactor is returned
Road, the first switch circuit include the normally closed folding contact and the normally opened stretching, extension contact being connected in series, and described normal
The both ends for opening stretching, extension contact are also parallel with one and the associated normally opened safety contact of the safety switch controller.
3. the shallow pit electrical system according to claim 2 for installing elevator additional, which is characterized in that on the bottom plate of lift car
It is also equipped with foldable toeguard, the normally closed spats plate contact for detecting spats board status is installed on the toeguard,
When the toeguard is in folding state, the normally closed spats plate contact is in an ON state；The spats plate contact concatenation
In the first switch circuit.
4. the shallow pit electrical system according to claim 3 for installing elevator additional, which is characterized in that the elevator motion control
Circuit further includes and the operation contactor and band-type brake contactor series connection and company in parallel with the first switch circuit
The second switch circuit connect, the second switch circuit include a normally opened car top overhauling contact, which can
Second switch circuit is connected by the normally opened stretching, extension contact in first switch circuit.
5. the shallow pit electrical system according to claim 4 for installing elevator additional, which is characterized in that further include being mounted on elevator
Normally closed additional limit contact in hoistway, the normally closed additional limit contact movement, described before carriage goes downwards to extreme position
Normally closed additional limit contact series are in the second switch circuit.
6. the shallow pit electrical system according to claim 4 for installing elevator additional, which is characterized in that the elevator motion control
Circuit further includes that the third switching circuitry and the 4th being connected in series respectively with the operation contactor and the band-type brake contactor is opened
Close circuit, the third switching circuitry include include a normally opened promptly electronic knob contact of the elevator being connected in series and one normally opened
Uplink contact is overhauled, is provided with the first connecting pin, institute between the normally opened urgent electronic knob contact and normally opened maintenance uplink contact
It states and is provided with the second company between the normally opened car top overhauling contact in second switch circuit and the normally closed additional limit contact
Connect end, first connecting pin and the second connection end are electrically connected, and the third switching circuitry can also pass through described the
Circuit is connected in the normally opened stretching, extension contact in one switching circuitry；4th switching circuitry includes the one of the elevator being connected in series
One normally opened urgent electronic uplink contact of normally opened urgent electronic knob contact and elevator；It is normally opened tight in the third switching circuitry
The urgent electronic knob contact synchronization action in knob contact and the 4th switching circuitry is moved in urgent telegram.
7. the shallow pit electrical system according to claim 6 for installing elevator additional, which is characterized in that the reset controlling system
It further include the maintenance uplink circuit being electrically connected with the maintenance uplink signal end on elevator control system and and elevator control system
On maintenance downlink signal end be electrically connected maintenance downlink circuit, it is described maintenance uplink circuit include be connected in series with safety
The normally closed safety contact of switch controller associated one and a normally opened maintenance uplink contact；The maintenance downlink circuit includes that series connection connects
Connect with the normally closed safety contact of safety switch controller associated one and a normally opened maintenance downlink contact.
8. the shallow pit electrical system according to claim 6 for installing elevator additional, which is characterized in that the elevator motion control
The normally closed reset switch contact with the operation contactor and band-type brake contactor series connection is additionally provided on circuit；Institute
Stating reset circuit includes for making the first of the security system system reset to reset circuit, and first reset circuit includes
The normally closed folding contact being connected in series and the normally closed safety contact of safety switch controller associated one, a normally closed car top overhauling
Contact, a normally opened reset switch contact and a reset controller, the reset controller is for controlling the bistable switch
State；The normally closed reset switch contact and the normally opened reset switch contact are associated with a reset switch.
9. the shallow pit electrical system according to claim 8 for installing elevator additional, which is characterized in that also wrap in the reset circuit
One is included for so that the second reset circuit that the elevator control system of elevator is resetted, described second, which resets circuit, includes series connection
One normally closed folding contact of connection, one and the associated normally opened safety contact of the safety switch controller and a normally closed urgent electricity
Movable contact, the described second urgent electromotive signal end resetted on circuit and the elevator control system are electrically connected.
10. the shallow pit electrical system according to claim 9 for installing elevator additional, which is characterized in that reset control system
System further includes the urgent electronic uplink circuit being electrically connected with the urgent electronic uplink signal end of elevator control system and and elevator
The urgent electronic downlink circuit that the urgent electronic downlink signal end of control system is electrically connected, the urgent electronic uplink circuit packet
Include the normally opened urgent electronic contact and a normally opened urgent electronic uplink contact of series connection, the urgent electronic downlink circuit packet
Include the normally opened urgent electronic contact and a normally opened urgent electronic downlink contact of series connection；The urgent electronic uplink circuit and
The normally opened urgent electronic contact and described second in the urgent electronic downlink circuit reset the normally closed urgent electricity in circuit
Movable contact synchronization action.
11. the shallow pit electrical system according to claim 8 for installing elevator additional, which is characterized in that the elevator operation control
The safety and loop of the door lock of elevator are also in series in circuit processed；A door lock measure loop is also set up in the security system, it is described
Door lock measure loop includes the elevator safety being connected in series and loop of the door lock and door lock controller；Described first resets circuit
In be also connected in series with a normally opened door lock contact, the normally opened door lock contact is associated with the door lock contactor.
12. the shallow pit electrical system according to claim 8 for installing elevator additional, which is characterized in that reset control system
System further includes an alarm circuit, and the alarm circuit includes that normally closed only suspend being connected in series rolls over contact, one and safety switch
The normally closed safety contact of controller associated one and an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910433226.3A CN110077929A (en) | 2019-05-22 | 2019-05-22 | Install the shallow pit electrical system of elevator additional |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910433226.3A CN110077929A (en) | 2019-05-22 | 2019-05-22 | Install the shallow pit electrical system of elevator additional |
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| CN110077929A true CN110077929A (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910433226.3A Pending CN110077929A (en) | 2019-05-22 | 2019-05-22 | Install the shallow pit electrical system of elevator additional |
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| US20200324999A1 (en) * | 2019-04-15 | 2020-10-15 | Otis Elevator Company | Elevator systems |
| CN112299182A (en) * | 2020-12-08 | 2021-02-02 | 重庆迈高电梯有限公司 | Automatic change shallow pit of elevator and overhaul protection device and protection system |
| CN113071964A (en) * | 2021-03-24 | 2021-07-06 | 安徽超视野智能科技有限公司 | Non-motor vehicle entering elevator monitoring system and method based on image recognition |
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| CN113071964A (en) * | 2021-03-24 | 2021-07-06 | 安徽超视野智能科技有限公司 | Non-motor vehicle entering elevator monitoring system and method based on image recognition |
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