CN108726311B - Elevator emergency self-rescue system and upright elevator - Google Patents
Elevator emergency self-rescue system and upright elevator Download PDFInfo
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- CN108726311B CN108726311B CN201810555143.7A CN201810555143A CN108726311B CN 108726311 B CN108726311 B CN 108726311B CN 201810555143 A CN201810555143 A CN 201810555143A CN 108726311 B CN108726311 B CN 108726311B
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/365—Means for stopping the cars, cages, or skips at predetermined levels mechanical
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an elevator emergency self-rescue system and a vertical elevator, wherein the vertical elevator is provided with a door motor and a band-type brake, and the elevator emergency self-rescue system comprises a standby power supply, an emergency operator, an elevator state detection device, a leveling signal detection device, a door motor power supply switching device and a band-type brake power supply control device; the emergency operator is configured to be operable by a person within the pod; when passengers are trapped in the hanging cabin due to the condition of the elevator, the elevator can automatically run to a flat floor position by operating the emergency operator, and the elevator door is opened, so that the passengers can escape from the elevator for self rescue, and the passengers are not required to contact with the passengers for the first time, thereby improving the safety performance of the elevator and reducing the occurrence rate of secondary accidents; in addition, the emergency self-rescue system of the elevator does not influence the operation of the existing system of the elevator because the band-type brake power supply control device and the door motor power supply switching device operate according to the output of the elevator state detection device, the flat layer signal detection device and the emergency operator.
Description
Technical Field
The invention relates to the technical field of elevator escape, in particular to an emergency self-rescue system for an elevator and a vertical elevator, wherein trapped personnel can escape automatically.
Background
The elevator brings comfort and convenience to the life of people, shows the continuous improvement of the living standard of people, becomes an indispensable part in high-rise apartments, mansion, airports, stations and the like, is closely related to the life and travel of people, and brings convenience to the life of people and a plurality of potential safety hazards to the people.
When an elevator is suddenly powered off or the elevator itself fails in the running process, an elevator nacelle can suddenly stop, so that an accident of trapped elevator is caused, the trapped elevator is the most common one in the elevator accidents, if the accident of trapped elevator cannot be quickly solved after the accident of trapped elevator occurs, the state of trapped personnel in the center of the elevator nacelle can be quickly changed, phenomena such as mania, hiking and the like can even occur, and particularly, people with originally unhealthy bodies or hearts can be controlled, if the trapped personnel cannot quickly leave the nacelle, the unpredictable damage and the trouble can be caused.
At present, after the elevator is trapped, the common rescue modes adopted by the elevator are classified into two types; the first is that after the elevator is powered off, a standby high-power supply is used for supplying power to the elevator, and the elevator control system is used for controlling the elevator to lay a flat floor; the second is to cut off the power supply of the elevator, and make the elevator lay flat by manually or electrically releasing the brake.
In the two methods, first, if the elevator has a fault, rescue cannot be automatically realized; the second type is to wait for the rescue of the external person, and the trapped person cannot be timely rescued.
Disclosure of Invention
The invention aims to provide an emergency self-rescue system for an elevator, so that when the elevator has a trapped personnel fault, trapped personnel can control the elevator to return to a flat floor position at the first time to automatically get rid of the trapped personnel.
Another object of the present invention is to provide a vertical elevator so that when the elevator fails, the trapped person can control the elevator to return to the flat floor position at the first time to get rid of the trapped person.
In order to achieve the above-mentioned object, the present invention discloses an emergency self-rescue system for an elevator, which is suitable for an upright elevator, wherein the upright elevator has a vertically running nacelle, the nacelle door is opened and closed by a door machine, the nacelle is braked by a band brake, and the emergency self-rescue system for an elevator comprises a standby power supply, an emergency operator, an elevator state detection device, a leveling signal detection device, a door machine power supply switching device and a band brake power supply control device; the emergency operator is configured to be operable by a person within the pod; the elevator state detection device is used for detecting the current state of the elevator, and the leveling signal detection device is used for detecting whether the elevator is at a leveling position currently; the band-type brake power supply control device is used for connecting or disconnecting the power supply of the standby power supply to the elevator band-type brake according to the detection results of the elevator state detection device, the leveling signal detection device and the action signal of the emergency operator; and the power supply switching device of the door machine switches the power supply input end of the door machine between the standby power supply and the conventional power supply of the elevator according to the detection results of the elevator state detection device, the leveling signal detection device and the action signal of the emergency operator.
Compared with the prior art, when the elevator with the emergency self-rescue system for the elevator has no-accident power failure or faults, passengers trapped in the elevator hanging cabin can operate the emergency operator to enable the elevator to automatically run to a flat floor position, and the elevator door is opened, so that the elevator can save oneself and get rid of the trouble, and the specific process is as follows: the band-type brake power supply control device and the door motor power supply switching device detect the current state of the elevator in real time through the elevator state detection device and the leveling signal detection device, if the elevator is in a non-leveling position, the emergency operator is actuated, the band-type brake power supply control device enables the band-type brake to be communicated with a standby power supply, the band-type brake releases the nacelle, and when the nacelle slides to the leveling position, the band-type brake power supply control device disconnects the standby power supply of the band-type brake, so that the band-type brake enters a braking state, at the moment, the door motor power supply switching device disconnects the conventional power supply of the door motor, connects the standby power supply, the door motor operates, and opens the cabin door, so that trapped passengers get rid of the passengers; therefore, the elevator emergency self-rescue system can be used for self-rescue when the elevator is trapped in the suspending cabin due to the occurrence of the situation, and the elevator is trapped in the suspending cabin for the first time without contacting with other people, so that the safety performance of the elevator is improved, and the occurrence rate of secondary accidents is reduced; in addition, the emergency self-rescue system of the elevator does not influence the operation of the existing system of the elevator because the band-type brake power supply control device and the door motor power supply switching device operate according to the output of the elevator state detection device, the flat layer signal detection device and the emergency operator.
Preferably, the elevator state detection device comprises a first switch controller and a second switch controller, wherein the first switch controller and/or the second switch controller is/are electrically connected between a main controller and a standby power supply of the elevator, when the elevator is in an abnormal state, the standby power supply respectively provides working power for the first switch controller and the second switch controller, and the first switch controller and the second switch controller are respectively in two different power supply loops.
Preferably, the door machine power supply switching device comprises a first controllable switch and a second controllable switch which are electrically connected with the first switch controller, and the band-type brake power supply control device comprises a normally open third controllable switch which is electrically connected with the second switch controller; the first controllable switch is a normally open switch and is electrically connected between the door machine and the standby power supply; the second controllable switch is a normally closed switch and is electrically connected between the door machine and a door machine controller of the elevator; the third controllable switch is electrically connected between the band-type brake and the standby power supply.
Preferably, the first switch controller and the output end of the standby power supply form a series loop through a fourth controllable switch; the fourth controllable switch is a normally open switch and is controlled by the second switch controller.
Preferably, the flat layer signal detection device comprises a fifth controllable switch, the emergency operator comprises a sixth controllable switch, the fifth controllable switch is a normally closed switch, the sixth controllable switch is a normally open switch, and the fifth controllable switch and the sixth controllable switch are connected in series in a power supply loop between the band-type brake and the standby power supply.
Preferably, the flat layer signal detection device further comprises a seventh controllable switch, the emergency operator comprises an eighth controllable switch, the seventh controllable switch and the eighth controllable switch are normally open switches, and the seventh controllable switch and the eighth controllable switch are connected in series in a power supply loop between the first switch controller and the standby power supply.
Preferably, the elevator emergency self-rescue system further comprises a cabin door opening and closing signal detection device, wherein the door power supply switching device and the band-type brake power supply control device are further controlled by the cabin door opening and closing signal detection device, and the cabin door opening and closing signal detection device is used for giving corresponding control signals according to the opening and closing state of the cabin door.
In addition, the invention also discloses a vertical elevator, which comprises a vertically running nacelle, a door machine for driving a cabin door of the nacelle to open and close and a band brake for braking the nacelle, and is characterized in that the elevator is provided with an elevator emergency self-rescue system, and the elevator emergency self-rescue system is as described above.
Preferably, the emergency operator is disposed within the nacelle.
Preferably, a prompting device is arranged in the nacelle and is used for prompting trapped personnel to operate the emergency operator when the elevator is in an abnormal state.
Drawings
Fig. 1 is a schematic circuit connection diagram of an elevator apparatus detection device of an elevator emergency self-rescue system according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a power supply loop of a band-type brake of an emergency self-rescue system for an elevator according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a power supply loop structure of a door machine of an emergency self-rescue system of an elevator according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an interface arrangement of a standby power supply of an elevator emergency self-rescue system according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of the installation structure of a floor level detection switch of an emergency self-rescue system for an elevator according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of a car mounting structure of an elevator of an embodiment of the present invention.
Fig. 7 is a schematic view of the installation structure of an emergency operator of an emergency self-rescue system for an elevator according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a connection structure between a star sealing device and a synchronous traction machine of a vertical elevator according to an embodiment of the present invention.
Detailed Description
In order to describe the technical content, structural features, implementation principles and achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
The invention discloses a vertical elevator, which is provided with a vertically running nacelle 1, wherein a cabin door 10 of the nacelle 1 is opened and closed through a door machine D1, the nacelle 1 is braked through a band-type brake D2, and in order to achieve the aim of quick rescue of trapped elevator, the vertical elevator is provided with an emergency self-rescue system of the elevator, and referring to fig. 2 to 7, the emergency self-rescue system of the elevator comprises a standby power supply 2, an emergency operator 3, an elevator state detection device, a leveling signal detection device, a band-type brake power supply control device and a door machine power supply switching device. When an emergency situation occurs in the elevator, the standby power supply 2 provides a rescue power supply, as shown in fig. 4, the standby power supply in the embodiment is provided with two pairs of two-phase electric output interfaces (01, 02;03, 04) and a pair of three-phase electric output interfaces (05, 06, 07), the output interfaces 01, 02 are used for supplying power to the band-type brake D2, the output interfaces 03, 04 are used for supplying power to the elevator state detection device, and the output interfaces 05, 06, 07 are used for supplying power to the door machine D1. The emergency operator 3 is configured to be operable by a person in the car 1, and when a passenger is trapped in the elevator car 1, the passenger can slide the car 1 to the flat landing position by actuating the emergency operator 3 and automatically open the door 10. The elevator state detection device is used for detecting the current state of the elevator, detecting whether the elevator is in a normal state or an abnormal state currently, wherein the abnormal state comprises power failure, faults and the like, and the leveling signal detection device is used for detecting whether the elevator is in a leveling position currently. The band-type brake power supply control device is used for connecting or disconnecting the power supply of the standby power supply 2 to the band-type brake D2 according to the detection results of the elevator state detection device and the leveling signal detection device and the action signal of the emergency operator 3. The power supply switching device of the door machine switches the power supply input end of the door machine D1 between the standby power supply 2 and the normal power supply of the elevator according to the detection results of the elevator state detection device, the leveling signal detection device and the action signal of the emergency operator 3.
The engineering process of the elevator emergency self-rescue system of the embodiment is as follows: the elevator status detection device detects the running status of the elevator in real time, for example, when the elevator suddenly fails, the elevator status detection device gives a signal that the elevator is in an abnormal state. The leveling signal detection device gives a signal that the nacelle 1 is positioned at a non-leveling position between two floors, at this time, if the emergency operator 3 is actuated, the band-type brake power supply control device controls the band-type brake D2 to be connected with the standby power supply 2, the brake of the nacelle 1 is released after the band-type brake D2 is electrified, and the elevator slides in a light load direction through the star sealing device, and as shown in fig. 8, the star sealing device comprises a star sealing contactor JFX, and the star sealing contactor JFX is connected with the synchronous traction machine DY. Because the elevator star-sealing device is a conventional design in an elevator, the principle and the working process of the star-sealing device are not repeated here. When the nacelle 1 slides to the leveling position, the leveling signal detection device gives a signal that the nacelle 1 is at the leveling position, at the moment, the band-type brake power supply control device controls the band-type brake D2 to disconnect the standby power supply 2, the band-type brake D2 is in a braking state of the nacelle 1 again after losing power, and the elevator stops sliding, meanwhile, the door motor power supply switching device disconnects the conventional power supply of the door motor D1, connects the door motor D1 with the power of the standby power supply 2, the door motor D1 is electrified, and the door 10 is opened, so that trapped people get trapped. Therefore, the elevator emergency self-rescue system in the embodiment can not only enable passengers to spread for self-rescue so as to quickly get rid of the passengers, but also enable the elevator emergency self-rescue system to be started only when the elevator is in an abnormal state, and the elevator emergency self-rescue system does not influence the normal operation of the elevator when the elevator is in a normal state.
The emergency operator 3 is preferably arranged in the nacelle 1 in the present embodiment, so that the emergency operator 3 can be found at the first time when passengers are trapped, the emergency operator 3 can be conveniently used, and the emergency operator 3 can be arranged outside the nacelle 1, and can be remotely controlled through wireless connection during use. Preferably, in this embodiment, a prompting device 8 is further disposed in the nacelle 1, when the elevator is in an abnormal state, the prompting device 8 prompts the trapped person to operate the emergency operator 3 for self rescue, and the prompting device 8 can be a prompting board, a voice prompting device or the like.
The elevator status detection device and the flat-bed signal detection device may use a chip type detector, which is a conventional means in the signal detection field, but this will increase the burden on the standby power supply 2, and the electronic product is easily interfered by the electromagnetic signal, so as to affect the sensitivity thereof, in this embodiment, the elevator status detection device adopts a switch control structure, please refer to fig. 1 in combination, and includes a first switch controller K1 and a second switch controller K2, where the first switch controller K1 and/or the second switch controller K2 are electrically connected between the main controller and the standby power supply 2 of the elevator, and when the elevator is in an abnormal state, the standby power supply 2 provides the working power for the first switch controller K1 and the second switch controller K2, and the first switch controller K1 and the second switch controller K2 are respectively located in two different power supply loops, such as in fig. 1, the first switch controller K1 is located in the power supply loop G2, and the second switch controller K2 is located in the power supply loop G1. Preferably, referring to fig. 2 and 3 in combination, the door motor power switching device includes a first controllable switch 60 and a second controllable switch 61 electrically connected to the first switch controller K1, and the band-type brake power control device includes a third controllable switch 50 electrically connected to the second switch controller K2. The first controllable switch 60 is a normally open switch, and is electrically connected between the door motor D1 and the standby power supply 2, the second controllable switch 61 is a normally closed switch, and is electrically connected between the door motor D1 and the door motor controller of the elevator, and the third controllable switch 50 is electrically connected between the band-type brake D2 and the standby power supply 2. When the elevator is in a normal state, the first switch controller K1 and the second switch controller K2 are in a power-off state, then the first controllable switch 60 is in an open state, and the second controllable switch 61 is in a closed state, so that the power input end of the door machine D1 is disconnected from the standby power supply 2, and the door machine D1 is controlled by the original system of the elevator; the third controllable switch 50 is in an open state, and the band-type brake D2 is disconnected from the standby power supply 2. Therefore, when the elevator is in a normal state, the emergency self-rescue system of the elevator does not cause any interference to the normal operation of the elevator. When the elevator is in an abnormal state, the second switch controller K2 is communicated with the standby power supply 2 and is in an electricity-obtaining state, the third controllable switch 50 is changed from normally open to closed, at the moment, if the nacelle 1 is in a non-flat position and the emergency operator 3 is actuated, the band-type brake D2 is communicated with the standby power supply 2, the band-type brake D2 is electrified, the braking of the elevator nacelle 1 is released, the nacelle 1 starts to roll, when the nacelle 1 rolls to the flat position, the band-type brake D2 is disconnected from the loop of the standby power supply 2 under the action of the flat signal detection device, the band-type brake D2 is powered off, so that the nacelle 1 is in a braking state again, meanwhile, the first switch controller K1 is connected with the standby power supply 2, the first controllable switch 60 is changed from normally open to closed, the second controllable switch 61 is changed from normally closed to open, and the door D1 is disconnected from the standby power supply 2 through the first controllable switch 60, and the door D1 is in turn connected with the standby power supply 2, and the door 10 is opened through the door 2.
As can be seen from the above description, the first switch controller K1 and the second switch controller K2 may be connected in parallel between the main controller and the standby power supply 2 of the elevator, but in safety, the door machine D1 can start to open the door only if the band-type brake D2 is released so that the nacelle 1 slips to the flat floor position, so, preferably, as shown in fig. 1, the second switch controller K2 is connected to the main controller of the elevator through a pair of relay-controlled switch contacts M0, Y0, the second switch controller K2, the switch contacts M0, Y0 and the standby power supply 2 output terminals 03, 04 form a series loop, when the elevator is in an abnormal operation state, the switch contacts M0, Y0 are closed, the second switch controller K2 is connected to the standby power supply 2, the first switch controller K1 forms a power supply loop with the power output terminals 03, 04 of the standby power supply 2 through a fourth controllable switch 51, the fourth controllable switch 51 is controlled by the second switch controller K2, and the fourth controllable switch 51 is a normally open switch 51. By the circuit structure, only after the second switch controller K2 is electrified, the first switch controller K1 can be electrified, and then the door machine D1 is connected into the standby power supply 2 through the first controllable switch 60, so that the safety performance of the elevator is improved.
Similarly, in another embodiment of the emergency self-rescue system for an elevator according to the present invention, the flat layer signal detection device also adopts a switch structure, please refer to fig. 1 and 2 in combination, the flat layer signal detection device includes a fifth controllable switch 40, the emergency operator 3 includes a sixth controllable switch 30, the fifth controllable switch 40 is a normally closed switch, the sixth controllable switch 30 is a normally open switch, and the fifth controllable switch 40 and the sixth controllable switch 30 are connected in series in a power supply loop between the band-type brake D2 and the standby power supply 2. When the nacelle 1 is in the flat position, the fifth controllable switch 40 is changed from the normally closed state to the open state, the power supply circuit between the band-type brake D2 and the standby power supply 2 is disconnected, and the band-type brake D2 is deenergized, so that the nacelle 1 is in the braking state. When the emergency operator 3 is operated, the sixth controllable switch 30 is changed from a normally open state to a closed state.
In addition, the flat layer signal detection device further includes a seventh controllable switch 41, referring to fig. 1 in combination, the emergency operator 3 further includes an eighth controllable switch 31, the seventh controllable switch 41 and the eighth controllable switch 31 are all normally open switches, and the seventh controllable switch 41 and the eighth controllable switch 31 are connected in series in a power supply loop between the first switch controller K1 and the standby power supply 2. Thereby ensuring that when the elevator fails, after the emergency operator 3 is activated, the power supply loop G2 in which the first switch controller K1 is located is turned on only when the elevator is in the flat position, and when the elevator is in the non-flat position, the seventh controllable switch 41 is in an open state, the first switch controller K1 is not supplied with power from the standby power supply 2, so that the door machine D1 remains stationary.
When the elevator is operated by the emergency operator 3 to open the cabin door 10, the door D1 is required to stop working, so that the elevator emergency self-rescue system further comprises a cabin door opening and closing signal detection device for detecting the opening and closing state of the cabin door 10, and the door power supply switching device and the band-type brake power supply control device are further controlled by the cabin door opening and closing signal detection device, wherein the cabin door opening and closing signal detection device is used for giving corresponding control signals according to the opening and closing state of the cabin door 10. When the cabin door opening and closing signal detection device detects that the cabin door 10 is opened in place, the power supply switching device of the door cuts off the power supply path between the door D1 and the standby power supply 2, and meanwhile, the band-type brake power supply control device cuts off the power supply loop between the band-type brake D2 and the standby power supply 2. Preferably, in the present embodiment, the door opening and closing signal detecting device includes a ninth controllable switch 70 and a tenth controllable switch 71, which are normally closed, please refer to fig. 1 and fig. 2 in combination, and when the door 10 is in the fully opened state, the ninth controllable switch 70 and the tenth controllable switch 71 are in the opened state. The ninth controllable switch 70 is connected in series in the power supply loop between the band-type brake D2 and the standby power supply 2, and the tenth controllable switch 71 is connected in series in the power supply loop G2 between the first switch controller K1 and the standby power supply 2. When the cabin door 10 is opened in place, the ninth controllable switch 70 and the tenth controllable switch 71 are turned off, and the power supply of the band-type brake D2 and the door D1 is disconnected, so that the band-type brake D2 is in a braking state, and the door D1 is in a stopped rotating state. In this embodiment, the ninth controllable switch 70 and the tenth controllable switch 71 are controlled by the limit switch 7 mounted on the door 10, and a limit switch pressing plate 72 is disposed above the door 10, and the limit switch pressing plate 72 presses the limit switch 7 after the door 10 is opened in place, so that the ninth controllable switch 70 and the tenth controllable switch 71 are changed from closed to open states.
In the elevator emergency self-rescue system, a fifth controllable switch 40 and a seventh controllable switch 41 are adopted as the flat layer signal detection device, in the embodiment, the fifth controllable switch 40 and the seventh controllable switch 41 are controlled by a flat layer detection switch 4, the flat layer detection switch 4 is a magnetic induction switch and is arranged on a cabin door 10, and referring to fig. 5, a magnetic strip 42 is arranged at the flat layer position of the elevator, when the elevator runs to the flat layer position, the flat layer detection switch 4 senses the magnetic strip 42, the fifth controllable switch 40 is changed from closed to open, and the seventh controllable switch 41 is changed from open to closed. It should be noted that the flat layer detection switch 4 is not limited to a magnetic induction switch, and may be any device capable of performing the same function, such as a photoelectric switch.
When passengers are trapped in the nacelle 1 at a non-flat floor due to power failure or faults of the upright elevator with the elevator emergency self-rescue system with the structure, the switch contacts M0 and Y0 connected with the main controller of the elevator are closed, the power supply loop G1 of the second switch controller K2 is conducted, the standby power supply 2 supplies power to the second switch controller K2, the third controllable switch 50 and the fourth controllable switch 51 are turned on to be closed from opening, the fifth controllable switch 40 is in a closed state due to the fact that the nacelle 1 is at the non-flat floor position, the seventh controllable switch 41 is in an open state, the ninth controllable switch 70 is in a closed state due to the fact that the cabin door 10 is in the closed state, when the emergency operator 3 is operated, the sixth controllable switch 30 is turned on from normally open, so that a power supply loop between the holding brake D2 and the standby power supply 2 is conducted, the standby power supply is turned off, the brake D2 is released to brake the nacelle 1, the elevator is operated in a sliding direction through an elevator star-gear, the seventh controllable switch 41 is in an open state, the first switch controller K1 is in a closed state, the power supply loop G1 is in a closed state, the power supply loop D is in a state, and the door machine is in a state that the door machine is in a state in which the power is in the state in which the state of being stopped. When the nacelle 1 slides to the leveling position, the leveling detection switch 4 senses the magnetic stripe 42, the leveling detection switch 4 acts, so that the seventh controllable switch 41 is changed from normally open to closed, the fifth controllable switch 40 is changed from normally closed to open, the power supply loop G2 between the first switch controller K1 and the standby power supply 2 is conducted, the first switch controller K1 is electrified, so that the first controllable switch 60 is changed from normally open to closed, the second controllable switch 61 is changed from normally closed to open, the power supply loop between the door machine D1 and the standby power supply 2 is connected, the door machine D1 is electrified to start running, and the door 10 is driven to open. At the same time, since the fifth controllable switch 40 is in the open state, the power supply circuit between the band-type brake D2 and the standby power supply 2 is disconnected, the band-type brake D2 is deenergized, and the elevator car 1 enters the braking state. When the cabin door 10 is opened in place, the limit switch pressing plate 72 presses the limit switch 7, so that the ninth controllable switch 70 and the tenth controllable switch 71 are turned from closed to open, the power supply loop G2 of the first switch controller K1 is opened, the first controllable switch 60 is turned to open, the second controllable switch 61 is turned to closed, the door D1 is powered off, and the rotation is stopped.
In summary, when abnormal conditions such as power failure or faults occur to enable the nacelle 1 to stay between two flat floors, passengers trapped in the nacelle 1 can actively control the emergency operator 3 to slide the nacelle 1 to the flat floor position and open the cabin door 10, so that the trapped passengers are not subjected to the actions of being impatient, anxiety, fear and the like caused by waiting for rescue, the occurrence rate of secondary accidents is reduced, and the elevator emergency self-rescue system with the structure does not influence the normal operation of the elevator.
The foregoing disclosure is merely illustrative of the principles of the present invention, and thus, it is intended that the scope of the invention be limited thereto and not by this disclosure, but by the claims appended hereto.
Claims (9)
1. An emergency self-rescue system for an elevator, which is suitable for a vertical elevator, wherein the vertical elevator is provided with a nacelle which runs vertically, a cabin door of the nacelle is opened and closed through a door machine, and the nacelle is braked through a band-type brake, and the emergency self-rescue system for the elevator is characterized by comprising:
a standby power supply;
an emergency operator configured to be operable by a person within the pod;
the elevator state detection device is used for detecting the current state of the elevator, and the flat layer signal detection device is used for detecting whether the elevator is at a flat layer position currently; the method comprises the steps of,
the band-type brake power supply control device and the door machine power supply switching device;
the band-type brake power supply control device is used for connecting or disconnecting the power supply of the standby power supply to the band-type brake according to the detection results of the elevator state detection device, the leveling signal detection device and the action signal of the emergency operator;
the power supply switching device of the door machine switches the power supply input end of the door machine between the standby power supply and the conventional power supply of the elevator according to the detection results of the elevator state detection device, the leveling signal detection device and the action signal of the emergency operator; the elevator state detection device comprises a first switch controller and a second switch controller, wherein the first switch controller and/or the second switch controller is/are electrically connected between a main controller of an elevator and a standby power supply, when the elevator is in an abnormal state, the standby power supply respectively provides working power for the first switch controller and the second switch controller, and the first switch controller and the second switch controller are respectively in two different power supply loops.
2. The elevator emergency self-rescue system of claim 1, wherein the door motor power supply switching device comprises a first controllable switch and a second controllable switch electrically connected with the first switch controller, and the band-type brake power supply control device comprises a normally open third controllable switch electrically connected with the second switch controller; the first controllable switch is a normally open switch and is electrically connected between the door machine and the standby power supply; the second controllable switch is a normally closed switch and is electrically connected between the door machine and a door machine controller of the elevator; the third controllable switch is electrically connected between the band-type brake and the standby power supply.
3. The elevator emergency self-rescue system of claim 2, wherein the first switch controller and the output end of the standby power supply form a series loop through a fourth controllable switch; the fourth controllable switch is a normally open switch and is controlled by the second switch controller.
4. The elevator emergency self-rescue system of claim 2, wherein the flat bed signal detection device includes a fifth controllable switch, the emergency operator includes a sixth controllable switch, the fifth controllable switch is a normally closed switch, the sixth controllable switch is a normally open switch, and the fifth controllable switch and the sixth controllable switch are connected in series in a power supply loop between the band-type brake and the standby power supply.
5. The elevator emergency self-rescue system of claim 4, wherein the flat floor signal detection device further includes a seventh controllable switch, the emergency operator includes an eighth controllable switch, the seventh controllable switch and the eighth controllable switch are both normally open switches, and the seventh controllable switch and the eighth controllable switch are connected in series in a power supply loop between the first switch controller and the backup power supply.
6. The elevator emergency self-rescue system according to claim 1, further comprising a cabin door opening and closing signal detection device, wherein the door power switching device and the band-type brake power control device are further controlled by the cabin door opening and closing signal detection device, and the cabin door opening and closing signal detection device is used for giving corresponding control signals according to the opening and closing state of the cabin door.
7. Upright elevator comprising a vertically operating nacelle, a door motor driving the door of the nacelle to open and close and a band brake for braking the nacelle, characterized in that it is provided with an elevator emergency rescue system according to any one of claims 1 to 6.
8. The stairlift elevator of claim 7, wherein said emergency operator is disposed within said car.
9. The stairlift elevator according to claim 7, wherein a warning device is provided in the car for warning trapped persons of operation of the emergency operator when the elevator is in an abnormal state.
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