CN215797839U - Door lock device of elevator car and elevator - Google Patents

Abstract

The utility model relates to an elevator car's locks and elevator, it includes controller, safety relay, control module and sedan-chair door lock, safety relay's output is connected in the input of controller and control module's input, control module's output is connected with the one end of sedan-chair door lock, safety relay's power end and control module's power end all are connected with the power positive pole, the earthing terminal of controller, control module's earthing terminal and the earthing terminal of sedan-chair door lock all are connected with power ground. This application has the condition that reduces the passenger and takes off the car door of opening and flee and appear, ensures passenger's personal safety's effect.

Description

Door lock device of elevator car and elevator

Technical Field

The application relates to the field of elevators, in particular to a door lock device of an elevator car and an elevator.

Background

An elevator refers to a lifting device that serves several specific floors in a building.

Elevators are typically provided with a variety of safety switches such as safety window switches, rope break protection switches and speed limiter switches. All safety switches are connected in series to control one safety relay. Only under the condition that all safety switches are switched on, the safety relays are closed, and the controller in the elevator can control the elevator to lift or switch the car door.

In the process that the passenger takes the elevator, if the elevator is in an abnormal state, the safety relay is disconnected, the elevator is suddenly stopped, and the passenger is trapped in the elevator. Passengers trapped inside the elevator may open the car door for escape by themselves, thereby causing personal safety of the crisis passengers.

SUMMERY OF THE UTILITY MODEL

In order to reduce the passenger and take off the condition of car door escape and appear, ensure passenger's personal safety, this application provides a door locking device and elevator of elevator car.

The application provides a pair of door locking device and elevator of elevator car adopts following technical scheme:

the utility model provides an elevator car's locks, includes controller, safety relay, control module and sedan-chair door lock, safety relay's output is connected in the input of controller and control module's input, control module's output is connected with the one end of sedan-chair door lock, safety relay's power end and control module's power end all are connected with the power positive pole, the earthing terminal of controller, control module's earthing terminal and the earthing terminal of sedan-chair door lock all are connected with power ground.

Through adopting above-mentioned technical scheme, when the abnormal condition did not appear in the elevator and scram, safety relay switched on, and the controller gets electricity and begins work, and control module closes sedan-chair lock, and the passenger accessible elevator is inside to be pressed the button and is opened or close the car door. When the elevator is in an abnormal state and is in emergency stop, the safety relay is disconnected, the controller stops working, and the control module starts the car door lock to lock the car door. When the elevator is in an abnormal state and is in emergency stop, the car door is locked through the car door lock, so that the situation that a passenger takes off the car door to escape is reduced, and the personal safety of the passenger is guaranteed.

Optionally, the control module includes a first control submodule and a second control submodule, a first input end of the first control submodule is connected to a power end of the second control submodule and a power end of the control module, a second input end of the first control submodule is connected to an input end of the control module, an output end of the first control submodule is connected to an input end of the second control submodule, an output end of the second control submodule is connected to an output end of the control module, and a ground end of the first control submodule and a ground end of the second control submodule are both connected to a ground end of the control module.

By adopting the technical scheme, when the safety relay is switched on, the first input end and the second input end of the first control submodule both obtain high level signals, and the first control submodule outputs low level signals. The second control submodule is closed, and the car door lock does not work. When the safety relay is switched off, a first input end of the first control submodule obtains a high level signal, a second input end of the first control submodule obtains a low level signal, and the first control submodule outputs the high level signal. The second control submodule is started, and the car door lock locks the car door.

Optionally, the first control submodule includes a relay, a first nor gate L1 and a second nor gate L2, the relay includes a coil J and a normally closed contact J-1, one end of the normally closed contact J-1 is connected to the first input end of the first control submodule, the other end of the normally closed contact J-1 is connected to the first input end of the first nor gate L1, the second input end of the first nor gate L1 is connected to the output end of the second nor gate L2 and the output end of the first control submodule, the output end of the first nor gate L1 is connected to the first input end of the second nor gate L2, the second input end of the second nor gate L2 is connected to one end of the coil J and the second input end of the first control submodule, and the other end of the coil J is connected to the ground terminal of the first control submodule.

By adopting the technical scheme, when the safety relay is switched on, the coil J is electrified, and the normally closed contact J-1 is disconnected. A first input terminal of the first nor gate L1 obtains a low level signal and a second input terminal of the second nor gate L2 obtains a high level signal. The first input terminal of the second nor gate L2 outputs a low level signal regardless of whether a high level signal or a low level signal is obtained, and the output terminal of the second nor gate L2 outputs a low level signal.

When the safety relay is disconnected, the coil J loses power, and the normally closed contact J-1 is closed. A first input terminal of the first nor gate L1 takes a high level signal and a second input terminal of the second nor gate L2 takes a low level signal. The second input terminal of the first nor gate L1 receives a high level signal or a low level signal, and the output terminal of the first nor gate L1 outputs a low level signal to the first input terminal of the second nor gate L2. The first input terminal and the second input terminal of the second nor gate L2 both receive a low level signal, and the output terminal of the second nor gate L2 outputs a high level signal.

Optionally, the second control submodule includes a first resistor R1, a second resistor R2, and a transistor Q, one end of the first resistor R1 is connected to the input end of the second control submodule, the other end of the first resistor R1 is connected to the base of the transistor Q, the collector of the transistor Q is connected to the power supply end of the second control submodule, the emitter of the transistor Q is connected to one end of the second resistor R2 and the output end of the second control submodule, and the other end of the second resistor R2 is connected to the ground end of the second control submodule.

By adopting the technical scheme, when the safety relay is switched on, the first control submodule outputs a low level signal, the triode Q is cut off, and the car door lock is closed. When the safety relay is disconnected, the first control submodule outputs a high level signal, the triode Q is conducted, the second resistor R2 clamps the output end of the control submodule at a high level, and the car door is locked by the electric locking car door. The first resistor R1 functions as a current limiting.

Optionally, the elevator comprises an elevator body, the elevator body is provided with a car door in a matching manner, the car door comprises two door plates, sliding plates are fixedly mounted at the tops of the door plates, a transmission mechanism is mounted on the elevator body, each sliding plate is fixedly provided with a connecting plate, a bolt is mounted between each connecting plate and the chain belt, a car door lock is fixedly mounted on the elevator body, and a limiting plate which can be connected with the car door in a lock-in manner is fixedly mounted on each sliding plate.

Through adopting above-mentioned technical scheme, the elevator normally works, and when the car door need be closed, drive mechanism drives two connecting plates and is close to each other to drive two slides and be close to each other. The two sliding plates are close to each other to drive the two door plates to be close to each other, so that the car door is closed. When the car door needs to be opened, the transmission mechanism drives the two connecting plates to be away from each other, so that the two sliding plates are driven to be away from each other. Two slides are kept away from each other and are driven two door plant and keep away from each other to open the car door.

When the elevator is abnormal and suddenly stopped, the car door lock is started and clamped with the limiting plate, so that the situation that a passenger takes off the car door by oneself to escape is reduced, and the personal safety of the passenger is guaranteed.

Optionally, the transmission mechanism includes a transmission chain belt, two rotating wheels and a motor, the motor is fixedly mounted on the elevator body, the two rotating wheels are mounted on the elevator body, the transmission chain belt is sleeved on the two rotating wheels in a meshing manner, a rotating shaft of the motor is coaxially connected with the rotating wheels, the transmission chain belt is divided into an upper chain and a lower chain by using a connecting line of circle centers of the two transmission wheels, one of the upper chain and the lower chain is connected through a bolt, and the other connecting plate and the lower chain are connected through a bolt.

Through adopting above-mentioned technical scheme, the rotation axis of motor rotates, rotates the wheel along with the rotation axis rotation, and the conveying chain belt carries out the transmission. Since one connecting plate is connected to the upper chain and the other is connected to the lower chain, the two connecting plates move toward and away from each other to open or close the car door when the conveyor chain is driven.

Optionally, the car door lock comprises a driving portion and a clamping portion, and the clamping portion is rotatably installed on the driving portion.

Through adopting above-mentioned technical scheme, after the elevator scram, the drive division gets electric, and drive division drive joint portion rotates and limiting plate joint to with the locking of car door. The escape device is beneficial to reducing the situation that passengers open the car door to escape by themselves, and guarantees personal safety.

Optionally, the limiting plate is fixedly provided with a guide plate, two sides of the guide plate are obliquely arranged,

through adopting above-mentioned technical scheme, when the elevator normally operated the switch door, the drive division stop work, and joint portion receives self gravity to influence and rotates and take place the slope. When opening or closing the car door, the deflector is touch to joint portion, and the slope direction of deflector both sides is rotated to reduce joint portion and receive the condition appearance that self gravity influences rotation and limiting plate joint.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the elevator is in emergency stop, the safety relay is disconnected, the first control submodule outputs a high-level signal to the second control submodule, the second control submodule is started, and the car door is locked after the car door is locked, so that the situation that passengers open the car door to escape by themselves is reduced, and personal safety is guaranteed;

2. through a connecting plate with the cochain be connected, another is connected with the lower chain, when the transmission chain transmission, two connecting plates are close to each other or keep away from to drive the car door and open and close.

Drawings

Fig. 1 is a schematic block diagram of embodiment 1 of the present application;

FIG. 2 is a circuit diagram of embodiment 1 of the present application;

FIG. 3 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 4 is a partial schematic structural view of embodiment 1 of the present application, which mainly embodies the structural schematic view of the transmission mechanism;

fig. 5 is a partial structural schematic view of embodiment 1 of the present application, which mainly shows a structural schematic view of a limiting plate and a car door lock;

FIG. 6 is an enlarged view of FIG. 5 at A;

FIG. 7 is a schematic block diagram of embodiment 2 of the present application;

FIG. 8 is a circuit diagram of embodiment 2 of the present application;

fig. 9 is a partial structural schematic view of embodiment 2 of the present application, which mainly shows the structure of the snap plate;

FIG. 10 is a partial schematic structural view of embodiment 2 of the present application, which mainly embodies the structure of the electric mortise lock;

fig. 11 is an enlarged view of fig. 9 at B.

Description of reference numerals: 1. a controller; 2. a safety relay; 3. a control module; 31. a first control sub-module; 32. a second control sub-module; 4. an elevator body; 5. a car door; 51. a door panel; 6. a slide plate; 7. a conveyor belt; 71. winding; 72. performing chain descending; 8. a rotating wheel; 9. a motor; 10. a connecting plate; 11. a bolt; 12. a car door lock; 121. a drive section; 122. a clamping part; 13. a limiting plate; 14. a guide plate; 15. an electric mortise lock; 16. the joint board.

Detailed Description

The present application is described in further detail below with reference to figures 1-11.

Example 1

The embodiment of the application discloses door locking device and elevator of elevator car.

Referring to fig. 1 and 2, the door lock device of the elevator car includes a controller 1, a safety relay 2, a control module 3, and a car door lock 12, wherein the car door lock 12 is a car door switch DS-131. The output end of the safety relay 2 is connected with the input end of the controller 1 and the input end of the control module 3, and the output end of the control module 3 is connected with one end of the car door lock 12. The power end of the safety relay 2 and the power end of the control module 3 are both connected with the positive pole of the power supply, and the grounding end of the controller 1, the grounding end of the control module 3 and the grounding end of the car door lock 12 are all connected with the power ground.

When the elevator is not in an abnormal state, the safety relay 2 is closed, the controller 1 is powered on, and the control module 3 and the car door lock 12 are both closed. The passenger can open and close the car door 5 by means of a key inside the elevator. When the elevator is in an abnormal state, the safety relay 2 is switched off, and the controller 1 is powered off. The control module 3 is started, and the car door lock 12 locks the car door 5.

Referring to fig. 1 and 2, the control module 3 includes a first control submodule 31 and a second control submodule 32, a first input terminal of the first control submodule 31 is connected to a power terminal of the second control submodule 32 and a power terminal of the control module 3, a second input terminal of the first control submodule 31 is connected to an input terminal of the control module 3, an output terminal of the first control submodule 31 is connected to an input terminal of the second control submodule 32, an output terminal of the second control submodule 32 is connected to an output terminal of the control module 3, and a ground terminal of the first control submodule 31 and a ground terminal of the second control submodule 32 are both connected to a ground terminal of the control module 3.

When the safety relay 2 is closed, the first control submodule 31 outputs a low level signal to the second control submodule 32, and the second control submodule 32 closes the car door lock 12. When the safety relay 2 is turned off, the first control submodule 31 outputs a high level signal to the second control submodule 32, and the second control submodule 32 starts the car door lock 12 to lock the car door 5.

Referring to fig. 1 and 2, the first control submodule 31 includes a relay including a coil J and a normally closed contact J-1, a first nor gate L1, and a second nor gate L2. One end of the normally closed contact J-1 is connected to a first input terminal of the first control submodule 31, and the other end is connected to a first input terminal of the first nor gate L1. A second input of the first nor gate L1 is connected to an output of the second nor gate L2 and to an output of the first control submodule 31, an output of the first nor gate L1 is connected to a first input of the second nor gate L2, and a second input of the second nor gate L2, one terminal of the coil J and a second input of the first control submodule 31 are connected to each other. The other end of the coil J is connected to the ground terminal of the first control sub-module 31.

When the safety relay 2 is closed, the coil J is electrified, and the normally closed contact J-1 is disconnected. A first input terminal of the first nor gate L1 obtains a low level signal and a second input terminal of the second nor gate L2 obtains a high level signal. After the second input terminal of the second nor gate L2 receives the high level signal, the output terminal of the second nor gate L2 outputs a low level signal regardless of whether the first input terminal of the second nor gate L2 is the high level signal or the low level signal, so that the first control sub-module 31 outputs the low level signal to the second control sub-module 32.

When the safety relay 2 is switched off, the coil J loses power, and the normally closed contact J-1 is closed. A first input terminal of the first nor gate L1 takes a high level signal and a second input terminal of the second nor gate L2 takes a low level signal. The output terminal of the first nor gate L1 outputs a low level signal to the first input terminal of the second nor gate L2. When the first input terminal and the second input terminal of the second nor gate L2 both obtain a low level signal, the output terminal of the second nor gate L2 outputs a high level signal, and the first control submodule 31 outputs a high level signal to the second control submodule 32.

Referring to fig. 1 and 2, the second control submodule 32 includes a first resistor R1, a second resistor R2, and a transistor Q, one end of the first resistor R1 is connected to an input terminal of the second control submodule 32, the other end of the first resistor R1 is connected to a base of the transistor Q, a collector of the transistor Q is connected to a power supply terminal of the second control submodule 32, an emitter of the transistor Q is connected to one end of the second resistor R2 and an output terminal of the second control submodule 32, and the other end of the second resistor R2 is connected to a ground terminal of the second control submodule 32.

When the first control submodule 31 outputs a low level signal to the second control submodule 32, the transistor Q is turned off, and the door lock 12 is closed. When the first control submodule 31 outputs a high level signal to the second control submodule 32, the triode Q is turned on, and the car door 5 is locked by the car door lock 12. The first resistor R1 functions as a current limiting and the second resistor R2 functions as a pull-down resistor.

Referring to fig. 3 and 4, the elevator comprises an elevator body 4, wherein a car door 5 is arranged on the elevator body 4 in a matching way, and the car door 5 comprises two door plates 51. The top of the door panel 51 is fixedly provided with a sliding plate 6, and each sliding plate 6 is fixedly provided with a connecting plate 10. A transmission mechanism is arranged between the connecting plate 10 and the elevator body 4. The transmission mechanism comprises a transmission chain belt 7, a rotating wheel 8 and a motor 9. Motor 9 fixed mounting is in elevator body 4, but motor 9 positive direction rotation and direction rotation. The rotating wheels 8 are two, one rotating wheel 8 is rotatably arranged on the elevator body 4, and the other rotating wheel 8 is coaxially arranged on a rotating shaft of the motor 9. The conveying chain belt 7 is engaged and sleeved on the two driving wheels.

Referring to fig. 4 and 5, the conveyor chain 7 is divided into an upper chain 71 and a lower chain 72 by using a line connecting centers of two driving wheels as a symmetry axis. Each connecting plate 10 is provided with a bolt 11. One connecting plate 10 is mounted to the upper chain 71 by bolts 11, and the other connecting plate 10 is mounted to the lower chain 72 by bolts 11. When the motor 9 rotates, the transmission chain belt 7 performs transmission, thereby driving the two door panels 51 to approach or move away from each other.

Referring to fig. 4, 5, and 6, a car door lock 12 is provided between the slide plate 6 and the elevator body 4, and the car door lock 12 includes a driving portion 121 and a locking portion 122. The driving portion 121 is fixedly mounted on the elevator body 4, and the engaging portion 122 is rotatably mounted on the driving portion 121. The sliding plate 6 is fixedly provided with a limiting plate 13 for clamping the clamping part 122. The limiting plate 13 is fixedly provided with a guide plate 14, and two sides of the guide plate 14 are obliquely arranged.

The implementation principle of this application embodiment's door locking device of elevator car and elevator is: when the elevator is in a normal state, the safety relay 2 is closed, and the controller 1 is powered on. If the passenger wants to open the car door 5, the controller 1 starts the motor 9, and the rotating wheel 8 rotates along with the rotating shaft of the motor 9, so as to drive the conveying chain belt 7 to transmit. The connecting plates 10 are driven away from each other by the conveyor belt 7, thereby driving the sliding plates 6 away from each other and opening the car door 5. If the passenger wants to close the car door 5, the controller 1 turns on the motor 9, and the rotating wheel 8 rotates along with the rotating shaft of the motor 9, so as to drive the conveying chain belt 7 to transmit. The connecting plates 10 are driven by the conveyor belt 7 to approach each other, thereby bringing the sliding plates 6 closer to each other and closing the car doors 5.

The first control submodule 31 outputs a low level signal, the second control submodule 32 is closed, and the door lock 12 is closed. When the car door lock 12 is closed, the engagement portion 122 is free to rotate by the driving portion 121. In the process of opening and closing the car door 5, the catching portion 122 is guided by the guide plate 14 to rotate, thereby reducing the occurrence of the catching portion 122 with the restriction plate 13.

When the elevator is in an abnormal state, the safety relay 2 is switched off, and the controller 1 is switched off. The first control submodule 31 outputs a high level signal, the second control submodule 32 is started, and the car door lock 12 is started. When car door lock 12 starts, drive portion 121 drives joint portion 122 and rotates, and joint portion 122 and limiting plate 13 joint to the condition that the passenger opened car door 5 by oneself appears is reduced.

Example 2

The embodiment of the application discloses door locking device and elevator of elevator car.

Referring to fig. 7 and 8, the door lock device for an elevator car in the present embodiment is different from embodiment 1 in that it further includes an electric latch 15. One end of the electric latch 15 is connected with the emitter of the triode Q, and the other end of the electric latch 15 is connected with the power ground. When the car door lock 12 is started, the bolt of the electric mortise lock 15 extends out to be clamped with the clamping plate 16; when the door lock 12 is closed, the bolt of the electric mortise lock 15 is retracted.

Referring to fig. 9, 10 and 11, the elevator in this embodiment is different from embodiment 1 in that an electric latch 15 is fixedly installed on an elevator body 4, and a connection plate 10 is provided with a clamping plate 16 which is clamped with a bolt of the electric latch 15. The clamping plate 16 is fixedly mounted on the connecting plate 10.

The implementation principle of this application embodiment's door locking device of elevator car and elevator is: when the elevator is in an abnormal state, the car door lock 12 is closed, and the electric mortise lock 15 is also closed. When the elevator is in an abnormal state and is in an emergency stop, the car door lock 12 is opened, the inserting tongue of the electric plug lock 15 extends out to be clamped with the clamping plate 16, so that the car door 5 is closed, and the situation that passengers open the car door 5 by themselves is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A door lock device for an elevator car, characterized in that: the intelligent control system is characterized by comprising a controller (1), a safety relay (2), a control module (3) and a car door lock (12), wherein the output end of the safety relay (2) is connected with the input end of the controller (1) and the input end of the control module (3), the output end of the control module (3) is connected with one end of the car door lock (12), the power end of the safety relay (2) and the power end of the control module (3) are connected with a power anode, and the grounding end of the controller (1), the grounding end of the control module (3) and the grounding end of the car door lock (12) are connected with a power ground.

2. The door lock device for an elevator car according to claim 1, wherein: the control module (3) comprises a first control submodule (31) and a second control submodule (32), a first input end of the first control submodule (31) is connected to a power supply end of the second control submodule (32) and a power supply end of the control module (3), a second input end of the first control submodule (31) is connected to an input end of the control module (3), an output end of the first control submodule (31) is connected to an input end of the second control submodule (32), an output end of the second control submodule (32) is connected to an output end of the control module (3), and a grounding end of the first control submodule (31) and a grounding end of the second control submodule (32) are both connected to a grounding end of the control module (3).

3. The door lock device for an elevator car according to claim 2, wherein: the first control submodule (31) comprises a relay, a first NOR gate L1 and a second NOR gate L2, the relay comprises a coil J and a normally closed contact J-1, one end of the normally closed contact J-1 is connected with a first input end of the first control submodule (31), the other end of the normally closed contact J-1 is connected with a first input end of the first NOR gate L1, a second input end of the first NOR gate L1 is connected with an output end of the second NOR gate L2 and an output end of the first control submodule (31), an output end of the first NOR gate L1 is connected with a first input end of the second NOR gate L2, a second input end of the second NOR gate L2 is connected with one end of the coil J and a second input end of the first control submodule (31), and the other end of the coil J is connected with a grounding end of the first control submodule (31).

4. The door lock device for an elevator car according to claim 2, wherein: the second control submodule (32) comprises a first resistor R1, a second resistor R2 and a triode Q, one end of the first resistor R1 is connected to the input end of the second control submodule (32), the other end of the first resistor R1 is connected to the base electrode of the triode Q, the collector electrode of the triode Q is connected to the power supply end of the second control submodule (32), the emitter electrode of the triode Q is connected to one end of the second resistor R2 and the output end of the second control submodule (32), and the other end of the second resistor R2 is connected to the ground end of the second control submodule (32).

5. An elevator according to any one of claims 1 to 4, characterized in that: including elevator body (4), elevator body (4) match and are provided with car door (5), car door (5) include two door plant (51), the equal fixed mounting in door plant (51) top has slide (6), drive mechanism is installed in elevator body (4), each slide (6) are fixed and all install connecting plate (10), each all install bolt (11) between connecting plate (10) and the chain belt, elevator body (4) fixed mounting has sedan-chair lock (12), slide (6) fixed mounting have can with sedan-chair lock (12) looks joint limiting plate (13).

6. An elevator according to claim 5, characterized in that: drive mechanism includes conveying chain belt (7), rotates wheel (8) and motor (9), motor (9) fixed mounting is in elevator body (4), it has two to rotate wheel (8), it installs in elevator body (4) to rotate wheel (8), two rotation wheels (8) are located to conveying chain belt (7) meshing cover, the rotation axis and the rotation wheel (8) coaxial coupling of motor (9), conveying chain belt (7) use the line of the centre of a circle of two drive wheels for dividing into cochain (71) and lower chain (72), one of them be connected through bolt (11) between connecting plate (10) and cochain (71), another connect through bolt (11) between connecting plate (10) and lower chain (72).

7. An elevator according to claim 5, characterized in that: the car door lock (12) comprises a driving part (121) and a clamping part (122), wherein the clamping part (122) is rotatably arranged on the driving part (121).

8. An elevator according to claim 7, characterized in that: the limiting plate (13) is fixedly provided with a guide plate (14), and two sides of the guide plate (14) are obliquely arranged.

Images