CN207312901U - Prevent the protective device of accidental movement of elevator cage - Google Patents
Prevent the protective device of accidental movement of elevator cage Download PDFInfo
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- CN207312901U CN207312901U CN201720946425.0U CN201720946425U CN207312901U CN 207312901 U CN207312901 U CN 207312901U CN 201720946425 U CN201720946425 U CN 201720946425U CN 207312901 U CN207312901 U CN 207312901U
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Abstract
The utility model discloses a kind of protective device for preventing accidental movement of elevator cage, including door interlock switch, stop mechanism and control device, and door interlock switch is arranged on the doorframe position of carriage, and whens gate open and close may act on door interlock switch so that it is acted；Stop mechanism include arranged on cage guide card resistance plate, be rotatably arranged in car top and with the matched stop plate of card resistance plate; stop plate has first, second position; when stop plate is in first position; stop plate is separated with card resistance plate to allow carriage to move; when stop plate turns to the second place, card resistance plate resists stop plate to prevent carriage from moving；Control device is arranged in carriage and connects door interlock switch, stop mechanism respectively, and control device produces control signal according to the action of door interlock switch, to control stop plate to be rotated between first, second position.Carriage accidental movement when opening the door is prevented by the card resistance for the mechanical structure being directly arranged in carriage, anti-interference is more preferable, has more effective stop protective effect.
Description
Technical field
Elevator technology field is the utility model is related to, more particularly to one kind can prevent lift car accidental movement when opening the door
Protective device.
Background technology
Elevator needs to reach the requirement such as safe and reliable, transfer efficiency height, leveling accuracy, ride comfort when in use, but existing
Grow directly from seeds and all kinds of elevator accidents but often occur in living, such as people, carriage accidental movement are pressed from both sides in elevator shutdown, carriage is rushed to summit or crouching bottom thing
Therefore wait, thus bring security risk, so elevator must install safety guard so that carriage accidental movement, hypervelocity or
Floor ground position is left to open the door when accident occurs, being capable of urgent stop elevator carriage；Relevant department is also to elevator phase at the same time
Answer standard to take new measure and requirement, related pressure security protection regulation has been done to situations such as carriage accidental movements.
The existing guard method to accidental movement of elevator cage, is all by controlling brake apparatus to go indirect control carriage
Stop, such as go control elevator internal contracting brake or traction steel-cable to realize braking defencive function by apparatus for controlling elevator.Due to existing
There is protected mode directly not carry out stop to carriage, but stop carriage is gone by indirect mode, therefore work as control system
It is interfered, when connection is interfered, or when disabled status occurs in control, the protection dress of accidental movement of elevator cage
Effective stop protection may not had by putting, so that elevator still has security risk.
Therefore, it is necessary to carriage can be directly acted on and can effectively be made in accidental movement of elevator cage by providing one kind
The protective device stopped, to solve above-mentioned the deficiencies in the prior art.
Utility model content
Carriage can be directly acted on the purpose of this utility model is to provide one kind and can be in accidental movement of elevator cage
The protective device of Shi Youxiao stops.
To achieve the above object, the technical solution of the utility model is：A kind of accidental movement of elevator cage of preventing is provided
Protective device, it includes door interlock switch, stop mechanism and control device；Wherein, door interlock switch is arranged on the doorframe position of carriage, sedan-chair
The door interlock switch is may act on during door open and close so that it is acted；Stop mechanism includes stop plate and card resistance plate, the card resistance plate
On cage guide, the stop plate is rotatably arranged in the car top and is engaged with the card resistance plate, and described
Stop plate has first position and the second place, when the stop plate is in the first position, the stop plate and the card
Baffle-wall releases blocking to allow the carriage to move, and when the stop plate turns to the second place, the card resistance plate resists
The stop plate is to prevent the carriage from moving；Control device is arranged in the carriage and connects the door interlock switch, institute respectively
State stop mechanism, the control device produces control signal according to the action of the door interlock switch, with control the stop plate in
Rotated between the first position, the second place.
It is preferred that the stop mechanism further includes motor and rotation axis, the both ends of the rotation axis connect described respectively
The output terminal of stop plate, the motor, and the motor is also connected with the control device, the motor is according to the control
Signal processed is run to drive the rotation axis to rotate.
It is preferred that the stop mechanism further includes the support base for being fixed on the car top, the rotation axis is rotatable
Ground is arranged on the support base.
It is preferred that card slot is offered on the card resistance plate, and when the stop plate is in the first position, the stop
Plate is slidably disposed through the card slot.
It is preferred that described prevent the protective device of accidental movement of elevator cage from further including to be arranged at intervals in the carriage
The first travel switch and the second travel switch, first travel switch, second travel switch are also respectively connected with described
Control device, the stop plate may act on first travel switch when turning to the first position, the stop plate turns
It may act on second travel switch when moving to the second place, and the control device is opened according to first stroke
Close, the output of the action stopping control signal of second travel switch.
It is preferred that the stop mechanism further includes the first pressing plate being connected with the stop plate, the second pressing plate, described
One pressing plate is corresponding with first travel switch, and second pressing plate is corresponding with second travel switch, when described
The compacting of one pressing plate is when first travel switch or second pressing plate compacting are in second travel switch, the control dress
Put the output for stopping the control signal.
It is preferred that one end connection low level of first travel switch, the other end connection of first travel switch
The normally opened contact of the door interlock switch, second travel switch one end connection low level, second travel switch it is another
One end connects the normally-closed contact of the door interlock switch.
It is preferred that the control device includes the first relay and the second relay, the normally opened contact of the door interlock switch
The coil of first relay is connected to control first relay coil to turn on, the normally-closed contact of the door interlock switch connects
The coil of second relay is connect to control second relay coil to turn on.
It is preferred that the control device further include first input end, the second input terminal, the 3rd input terminal, the first output terminal,
Second output terminal and the 3rd output terminal, are serially connected with first relay between the first input end, first output terminal
Normally opened contact, the normally-closed contact of second relay, concatenated between the first input end, second output terminal
State normally opened contact, the normally-closed contact of first relay of the second relay, second input terminal, first output terminal
Between be serially connected with normally opened contact, the normally-closed contact of first relay of second relay, second input terminal, institute
Normally opened contact, the normally-closed contact of second relay that first relay is serially connected between the second output terminal are stated, it is described
Between 3rd input terminal, the 3rd output terminal and it is connected to the normally opened contact of first relay, second relay
Normally opened contact, and first output terminal, second output terminal, the 3rd output terminal are connected to the stop machine
Structure.
It is preferred that when the gate is closed, the stop plate is in the first position, when the gate is opened,
The stop plate turns to the second place.
Compared with prior art, due to the protective device for preventing accidental movement of elevator cage of the utility model, in carriage
Doorframe position door interlock switch is set, and rotatable stop plate is set in car top and card resistance is set on cage guide
Plate, stop plate are engaged with card resistance plate, and control device is arranged in carriage and connects door interlock switch, stop mechanism respectively, works as gate
Open and close and act on door interlock switch so that its act when, control device according to the action of door interlock switch produce control signal so that
Control stop plate rotates between its first position, the second place, and when gate is closed, stop plate is in first position, stop
Plate releases blocking with card resistance plate and allows carriage to move, and when gate is opened, stop plate turns to the second place, and card resistance plate resists
Stop plate is to prevent carriage from moving.The utility model prevents carriage from existing by the card resistance for the mechanical structure being directly arranged in carriage
Accidental movement during enabling, and even accidental movement of elevator cage when also can to its effective stop, ensure carriage opening the door
The movement of big distance will not occur under state, compared to it is existing indirect control carriage in a manner of making its stop, this reality
It is more preferable with new anti-interference, it can cross and play more effective stop protective effect, make the use of elevator safer.
Brief description of the drawings
Fig. 1 is the circuit diagram that the utility model prevents control device in the protective device of accidental movement of elevator cage.
Fig. 2 is the structure diagram that the utility model prevents stop mechanism in the protective device of accidental movement of elevator cage.
Fig. 3 is the installation site signal that the utility model prevents door interlock switch in the protective device of accidental movement of elevator cage
Figure.
Embodiment
The embodiment of the utility model described referring now to attached drawing, similar element numbers represent similar member in attached drawing
Part.
First with reference to shown in Fig. 1-Fig. 3, the protective device provided by the utility model for preventing accidental movement of elevator cage,
It includes door interlock switch KM1, control device 100 and stop mechanism 200.Wherein, door interlock switch KM1 is arranged on the doorframe of carriage 300
Position (see Fig. 3), and door interlock switch KM1 is may act on during 310 open and close of gate so that it is acted.Stop mechanism 200 is arranged at
Between carriage 300 and cage guide, when gate is opened, stop mechanism 200 will produce mechanical blocking, so as to prevent carriage from moving
Dynamic, after gate is closed, stop mechanism 200 automatically terminates blocking effect, so that carriage can be with normal operation.Control device 100
Door interlock switch KM1, stop mechanism 200 are connected in carriage 300 and respectively, control device 100 is according to the dynamic of door interlock switch KM1
Make generation control signal, mechanical blocking is produced to control stop mechanism 200 to act or releases blocking.
Referring now to shown in Fig. 1-2, stop mechanism 200 includes motor 210, rotation axis 220, stop plate 230 and card resistance
Plate 240.Wherein, card resistance plate 240 is arranged on cage guide, and rotation axis 220 is rotatably arranged in the top of carriage 300, and rotates
The both ends of axis 220 connect stop plate 230, the output terminal of motor 210 respectively；Motor 210 is installed on the top of carriage 300 simultaneously
Control device 100 is connected, control device 100 produces control signal according to the action of door interlock switch KM1, to control motor 210
Rotate, so as to drive stop plate 230 to rotate；It is outer and in mating connection with card resistance plate 240 that stop plate 230 protrudes out carriage 300；
And stop plate 230 has first position and the second place, when stop plate 230 is in first position, stop plate 230 and card resistance plate
240 release blocking to allow carriage 300 to move, and when stop plate 230 turns to the second place, card resistance plate 240 resists stop plate 230
It is rotated further with limiting it, so as to prevent carriage 300 from moving.
It is described to prevent the protective device of accidental movement of elevator cage from further including the first stroke and opening with continued reference to shown in Fig. 1-2
SQ1 and the second travel switch SQ2, the first travel switch SQ1, the second travel switch SQ2 is closed to be arranged in carriage 300 at intervals simultaneously
Control device 100 is connected respectively, and stop plate 230 may act on the first travel switch SQ1, stop plate when turning to first position
230 may act on the second travel switch SQ2 when turning to the second place, and control device 100 is according to the first travel switch
The action of SQ1, the second travel switch SQ2 stop the output of the control signal.
As shown in Fig. 2, the stop mechanism 200 further includes the first pressing plate 250, the second pressing plate 260 and support base 270, branch
Support seat 270 is installed on the top of carriage 300, and rotation axis 220 is rotationally arranged on support base 270, the first pressing plate 250, the
Two pressing plates 260 are individually fixed in rotation axis 220 and at an angle, and the first travel switch SQ1 is installed on the first pressing plate 250
The position that can be pressed onto, the second travel switch SQ2 are installed on the position that can be pressed onto of the second pressing plate 260, when the first pressing plate 250 suppress in
First travel switch SQ1 or the second pressing plate 260 are suppressed when the second travel switch SQ2, will cause the first travel switch respectively
SQ1, the second travel switch SQ2 are acted, so that control device 100 stops the output of the control signal.
In the utility model, installed between the first pressing plate 250, the second pressing plate 260 in 90 ° of angle a, certainly, between the two
Angle a be not limited.
More specifically, card slot 241 is offered on the card resistance plate 240, and when stop plate 230 is in first position, stop
Plate 230 extends along cage guide direction, i.e. stop plate 230 is in vertical state at this time, therefore stop plate 230 is slidably disposed through
So that its carriage 300 moves, position shown in Fig. 2 is in first position and slides through card slot card slot 241 for stop plate 230
State when 241.When stop plate 230 is in first position in the utility model, it is preferably perpendicular with card resistance plate 240, but two
The angular relationship is not limited between person, as long as stop plate 230 can be made to can be slid through card slot 241.Accordingly, stop is worked as
After plate 230 turns over certain angle, the short of width of card slot 241 so that stop plate 230 by the way that therefore stop plate 230 will be with card
Baffle-wall 240 is inconsistent, and card resistance plate 240 is rotated further the barrier effect of stop plate 230 by stop plate 230 is limited, so that sedan-chair
Railway carriage or compartment 300 can not move.Preferably, when stop plate 230 is in the second place in the utility model, itself and the substantially phase of card resistance plate 240
Parallel, the short of width of card slot 241 is not limited to parallel relation, only so that stop plate 230 slides through between the two certainly
Enable stop plate 230 and card resistance plate 240 inconsistent.
In the utility model, when gate 310 is closed, control device 100 will control stop plate 230 to turn to first
Put so that carriage 300 can normal operation, when gate 310 is opened, control device 100 by control stop plate 230 turn to
The second place, makes stop plate 230 inconsistent with card resistance plate 240 and prevents elevator accidental movement, and no matter door-opened elevator distance is more
Greatly, stop plate 230 and card resistance plate 240 are inconsistent all the time, when elevator occur accidental movement when, all will because mechanical card resistance act on and nothing
Method is run.
Referring now to shown in Fig. 1, control device 100 includes the first relay K1 and the second relay K2, and control device
100 have tie point CL, tie point OP.One end connection low level of first travel switch SQ1, the first travel switch SQ1's is another
The normally opened contact KM1-1 of the normally opened contact KM1-1 of one end connection door interlock switch KM1, door interlock switch KM1 are through tie point CL connections the
For the coil of one relay K1 to control the first relay K1 coils to turn on, the coil of the first relay K1 is also attached to 24V voltages.
Accordingly, one end connection low level of the second travel switch SQ2, the other end connection door interlock switch KM1 of the second travel switch SQ2
Normally-closed contact KM1-2, coils of the normally-closed contact KM1-2 through tie point OP the second relays of connection K2 is to control the second relay
Device K2 coils turn on, and the coil of the second relay K2 is also attached to 24V voltages.
With continued reference to shown in Fig. 1, control device 100 further includes first input end L1, the second input terminal L2, the 3rd input terminal
L3, the first output terminal U, the second output terminal V and the 3rd output terminal W.Wherein, concatenated between first input end L1, the first output terminal U
There are normally opened contact, the normally-closed contact of the second relay K2 of the first relay K1, between first input end L1, the second output terminal V
It is serially connected with normally opened contact, the normally-closed contact of the first relay K1 of the second relay K2, the second input terminal L2, the first output terminal U
Between be serially connected with normally opened contact, the normally-closed contact of the first relay K1 of the second relay K2, the second input terminal L2, the second output
Normally opened contact, the normally-closed contact of the second relay K2 of the first relay K1, the 3rd input terminal L3, the 3rd are serially connected between the V of end
Between output terminal W and it is connected to the normally opened contact of the first relay K1, the normally opened contact of the second relay K2, and the first output terminal U,
Second output terminal V, the 3rd output terminal W are also respectively connected with motor 210.
It is former with reference to the work for the protective device that accidental movement of elevator cage shown in Fig. 1-3, is prevented to the utility model
Reason and process illustrate.
As shown in Figure 1,3, when elevator is in shutdown state, be installed on the door interlock switch KM1 of 300 doorframe position of carriage because
The compacting of gate 310, its normally opened contact KM1-1 closures, normally-closed contact KM1-2 are disconnected, and the first travel switch SQ1 is by the first pressure
Plate 250 is pushed down, so as to be off, at this time by 0V voltages, the first travel switch SQ1, normally opened contact KM1-1, company in Fig. 1
The circuit that contact CL, first relay K1,24V voltage are formed disconnects, and the first relay K1 is not attracted；Meanwhile by 0V voltages,
Also break in the circuit that second travel switch SQ2, normally-closed contact KM1-2, tie point OP, second relay K2,24V voltage are formed
Open, the second relay K2 is not also attracted.
Therefore, in control device 100, first input end L1, the normally opened contact of the first relay K1, the second relay K2
The circuit that normally-closed contact, the first output terminal U are formed disconnects；First input end L1, the normally opened contact of the second relay K2, first
The circuit that the normally-closed contact of relay K1, the second output terminal V are formed disconnects；Second input terminal L2, the second relay K2 it is normal
Open contact, the circuit that the normally-closed contact of the first relay K1, the first output terminal U are formed disconnects；Second input terminal L2, first after
The circuit that the normally opened contact of electric appliance K1, the normally-closed contact of the second relay K2, the second output terminal V are formed disconnects；3rd input
The circuit that end L3, the normally opened contact of the first relay K1, the 3rd output terminal W are formed disconnects；3rd input terminal L3, the second relay
The circuit that the normally opened contact of device K2, the 3rd output terminal W are formed disconnects.So motor 210 does not work without electricity.
Referring to shown in Fig. 1-3, when gate 310 is opened in level position, gate 310 acts door interlock switch KM1,
So that its normally opened contact KM1-1 is disconnected, normally-closed contact KM1-2 closures.At this time, by 0V voltages, the first travel switch SQ1, often
The circuit that contact KM1-1, tie point CL, first relay K1,24V voltage are formed is opened to be still turned off, but by 0V voltages, second
The circuit conducting that travel switch SQ2, normally-closed contact KM1-2, tie point OP, second relay K2,24V voltage are formed.
Therefore, the second relay K2 in control device 100 is attracted, so that first input end L1, the second relay K2
Normally opened contact, the circuit conducting that is formed of normally-closed contact, the second output terminal V of the first relay K1, the second input terminal L2, the
The circuit conducting that the normally opened contact of two relay K2, the normally-closed contact of the first relay K1, the first output terminal U are formed, the 3rd
The circuit conducting that input terminal L3, the normally opened contact of the second relay K2, the 3rd output terminal W are formed.
At this time, control device 100 outputs control signals to motor 210, motor 210 is driven rotation axis 220 to Fig. 2
Middle B directions rotate, and after the second pressing plate 260 rotates 90 °, the second pressing plate 260 can be pressed onto the second travel switch SQ2, make the second row
Cheng Kaiguan SQ2 are disconnected, and then make 0V voltages, the second travel switch SQ2, normally-closed contact KM1-2, tie point OP, the second relay
The circuit that K2 and 24V voltages are formed disconnects, and the second relay K2 is disconnected, and the corresponding circuit in control device 100 disconnects, electricity
Motivation 210 stops operating without electricity, and the stop plate 230 in Fig. 2 also turns over 90 ° and is in the second place, and the in the present embodiment
Two positions are the horizontal level of stop plate 230, and stop plate 230 will be unable to by the card slot 241 on card resistance plate 240, thus with card
Baffle-wall 240 is inconsistent, stops that carriage 300 moves with this.
As long as elevator is in any door opening state, no matter door-opened elevator apart from much, even if accidental movement occurs for elevator, also will
Because of the mutual barrier effect between card resistance plate 240 and stop plate 230, elevator is caused not run, so as to effectively prevent elevator
Movement under door opening state.
With continued reference to shown in Fig. 1-3, in the above-described state, when elevator at closing time, gate 310 produces door interlock switch KM1
Effect, so that its normally opened contact KM1-1 is closed, normally-closed contact KM1-2 is disconnected.Therefore, by 0V voltages, the first travel switch
The conducting of circuit that SQ1, normally opened contact KM1-1, tie point CL, first relay K1,24V voltage are formed, and by 0V voltages, the
The circuit that two travel switch SQ2, normally-closed contact KM1-2, tie point OP, second relay K2,24V voltage are formed disconnects.
At this time, the first relay K1 in control device 100 is attracted, so that first input end L1, the first relay K1
Normally opened contact, normally-closed contact, the first output terminal U of the second relay K2 formed circuit conducting；Accordingly, the second input
Lead in the circuit that end L2, the normally opened contact of the first relay K1, the normally-closed contact of the second relay K2, the second output terminal V are formed
Circuit conducting logical, that the 3rd input terminal L3, the normally opened contact of the first relay K1, the 3rd output terminal W are formed, control device
100 output control signals to motor 210 again, run motor 210.
At this time, motor 210 drives the A directions into Fig. 2 of rotation axis 220 to rotate, and is returned when the first pressing plate 250 rotates 90 °
To after initial position, it would be pressed against the first travel switch SQ1 so that the first travel switch SQ1 disconnect, therefore, by 0V voltages,
The circuit that first travel switch SQ1, normally opened contact KM1-1, tie point CL, first relay K1,24V voltage are formed disconnects,
First relay K1 is disconnected；So that the corresponding circuit in control device 100 disconnects, control device 100 is exported without control signal,
Therefore motor 210 is made to stop operating without electricity.At this time, the stop plate 230 in Fig. 2 also rotates backward 90 ° and is again at
One position, i.e. stop plate 230 turns to vertical position from horizontal level, and stop plate 230 can move through card resistance plate at this time
Card slot 241 on 240, makes elevator can be with normal operation.
To sum up, due to the protective device for preventing accidental movement of elevator cage of the utility model, in the doorframe position of carriage 300
Door interlock switch KM1 is installed, and rotatable stop plate 230 is set at the top of carriage 300 and card is set on cage guide
Baffle-wall 240, stop plate 230 and card resistance plate 240 are in mating connection, and control device 100 is arranged in carriage 300 and connects door lock respectively
KM1, stop mechanism 200 are switched, when 310 open and close of gate act on door interlock switch KM1 so that it is acted, control device 100
Control signal is produced according to the action of door interlock switch KM1, so as to control stop plate 230 between its first position, the second place
Rotate, when gate 310 is closed, stop plate 230 is in first position, and stop plate 230 releases blocking with card resistance plate 240 and allows
Carriage 300 moves, and when gate 310 is opened, stop plate 230 turns to the second place, card resistance plate 240 resist stop plate 230 with
Carriage 300 is prevented to move.The utility model prevents carriage 300 by the card resistance for the mechanical structure being directly arranged in carriage 300
Can also it ensure that carriage 300 exists to its effective stop when the accidental movement when opening the door, even 300 accidental movement of lift car
The movement of big distance will not occur under door opening state, compared to it is existing by indirect control carriage 300 so that the side of its stop
Formula, the anti-interference of the utility model is more preferable, can cross and play more effective stop protective effect, makes the use of elevator safer.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be new to limit this practicality with this
The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims, still belong to the utility model and are covered
Scope.
Claims (10)
- A kind of 1. protective device for preventing accidental movement of elevator cage, it is characterised in that including：Door interlock switch, it is arranged on the doorframe position of carriage, and whens gate open and close may act on the door interlock switch so that it is acted；Stop mechanism, it includes stop plate and card resistance plate, and the card resistance plate is arranged on cage guide, and the stop plate is rotationally It is engaged arranged on the car top and with the card resistance plate, and the stop plate has first position and the second place, it is described When stop plate is in the first position, the stop plate releases blocking to allow the carriage to move with the card resistance plate, institute When stating stop plate and turning to the second place, the card resistance plate resists the stop plate to prevent the carriage from moving；Control device, it is arranged in the carriage and connects the door interlock switch, the stop mechanism, the control device respectively Control signal is produced according to the action of the door interlock switch, to control the stop plate in the first position, the second Rotated between putting.
- 2. the protective device as claimed in claim 1 for preventing accidental movement of elevator cage, it is characterised in that the stop mechanism Motor and rotation axis are further included, the both ends of the rotation axis connect the stop plate, the output terminal of the motor respectively, and The motor is also connected with the control device, and the motor is run according to the control signal to drive the rotation axis to turn It is dynamic.
- 3. the protective device as claimed in claim 2 for preventing accidental movement of elevator cage, it is characterised in that the stop mechanism The support base for being fixed on the car top is further included, the rotation axis is rotationally arranged on the support base.
- 4. the protective device as claimed in claim 1 for preventing accidental movement of elevator cage, it is characterised in that on the card resistance plate Card slot is offered, when the stop plate is in the first position, the stop plate is slidably disposed through the card slot.
- 5. the protective device as claimed in claim 1 for preventing accidental movement of elevator cage, it is characterised in that further include separately Ground is arranged on the first travel switch and the second travel switch in the carriage, and first travel switch, second stroke are opened Pass is also respectively connected with the control device, and the stop plate may act on first stroke and open when turning to the first position Close, the stop plate may act on second travel switch when turning to the second place, and the control device according to The action of first travel switch, second travel switch stops the output of the control signal.
- 6. the protective device as claimed in claim 5 for preventing accidental movement of elevator cage, it is characterised in that the stop mechanism Further include the first pressing plate being connected with the stop plate, the second pressing plate, first pressing plate and the first travel switch phase Corresponding, second pressing plate is corresponding with second travel switch, suppresses when first pressing plate and is opened in first stroke Close or second pressing plate compacting is when second travel switch, the control device stops the output of the control signal.
- 7. the protective device as claimed in claim 5 for preventing accidental movement of elevator cage, it is characterised in that first stroke One end connection low level of switch, the other end of first travel switch connects the normally opened contact of the door interlock switch, described One end connection low level of second travel switch, the other end of second travel switch connect the normally closed of the door interlock switch and touch Point.
- 8. the protective device as claimed in claim 1 for preventing accidental movement of elevator cage, it is characterised in that the control device Including the first relay and the second relay, the normally opened contact of the door interlock switch connects the coil of first relay to control Make first relay coil conducting, the normally-closed contact of the door interlock switch connects the coil of second relay to control The second relay coil conducting.
- 9. the protective device as claimed in claim 8 for preventing accidental movement of elevator cage, it is characterised in that the control device First input end, the second input terminal, the 3rd input terminal, the first output terminal, the second output terminal and the 3rd output terminal are further included, it is described The normally opened contact of first relay, second relay are serially connected between first input end, first output terminal Normally-closed contact, is serially connected with the normally opened contact, described of second relay between the first input end, second output terminal The normally-closed contact of first relay, is serially connected with second relay between second input terminal, first output terminal The normally-closed contact of normally opened contact, first relay, is serially connected with described between second input terminal, second output terminal The normally-closed contact of the normally opened contact of first relay, second relay, the 3rd input terminal, the 3rd output terminal it Between and be connected to the normally opened contact of first relay, the normally opened contact of second relay, and first output terminal, institute State the second output terminal, the 3rd output terminal is connected to the stop mechanism.
- 10. the protective device as claimed in claim 1 for preventing accidental movement of elevator cage, it is characterised in that when the gate During closing, the stop plate is in the first position, and when the gate is opened, the stop plate turns to the second Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946425.0U CN207312901U (en) | 2017-07-31 | 2017-07-31 | Prevent the protective device of accidental movement of elevator cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720946425.0U CN207312901U (en) | 2017-07-31 | 2017-07-31 | Prevent the protective device of accidental movement of elevator cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207312901U true CN207312901U (en) | 2018-05-04 |
Family
ID=62433912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720946425.0U Active CN207312901U (en) | 2017-07-31 | 2017-07-31 | Prevent the protective device of accidental movement of elevator cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207312901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352370A (en) * | 2017-07-31 | 2017-11-17 | 快意电梯股份有限公司 | Prevent the protection device of accidental movement of elevator cage |
-
2017
- 2017-07-31 CN CN201720946425.0U patent/CN207312901U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352370A (en) * | 2017-07-31 | 2017-11-17 | 快意电梯股份有限公司 | Prevent the protection device of accidental movement of elevator cage |
| CN107352370B (en) * | 2017-07-31 | 2023-09-05 | 快意电梯股份有限公司 | Protection device for preventing accidental movement of elevator car |
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