JP6271667B1 - Emergency machine roomless elevator - Google Patents

Abstract

[PROBLEMS] To continue a fire fighting operation without affecting the operation of an elevator even when a landing inspection device is flooded during a fire fighting operation due to water discharge or the like. An elevator control device installed in a hoistway above the top floor level of a building in which an elevator is installed, a landing inspection device installed at a landing and used for checking the elevator control device, A fire-fighting operation switch provided in the car, and the elevator control device includes a disconnecting unit that disconnects the landing inspection device, and a disconnection control unit that controls the disconnecting unit, and the disconnection control unit includes the firefighting operation switch. When it is determined that the operation switch is turned on, a disconnection command is output to the disconnection unit, and the landing inspection apparatus is disconnected from the elevator control apparatus. [Selection] Figure 2

Description

  Embodiments described herein relate generally to an emergency machine roomless elevator, an elevator control device, and an emergency machine roomless elevator operation method.

  Usually, in buildings over a predetermined height, installation of an emergency elevator is obligatory. The emergency elevator is normally used as a general elevator, but is used for fire fighting activities when a fire occurs. For this reason, various regulations are defined in the car size, standards, and the like. In particular, conventional emergency elevators have been recognized only when having a machine room. By installing a control panel in the machine room on the top floor of the building, the control panel is prevented from getting wet from water discharge during fire extinguishing, and the electronic equipment inside the control panel is protected.

  Recently, a partial revision of the Building Standard Law Enforcement Ordinance has made it possible to apply an elevator that does not have a machine room (hereinafter referred to as a “machine room-less elevator”) as an emergency elevator.

JP2012-180136A

  By the way, in a machine roomless elevator, an elevator control device is installed at the top of the hoistway, and a landing inspection device used for maintenance inspection of the elevator control device is installed at the landing on the top floor of the building.

  However, when a machine roomless elevator is used as an emergency elevator, there is a possibility that a malfunction may occur in the fire fighting activity, because the landing inspection device gets wet due to water discharge.

  Although it is conceivable to make the hall inspection device waterproof, it is difficult to make it completely waterproof.

  In view of the above circumstances, the embodiment of the present invention is an emergency that can continue the fire fighting operation without affecting the operation of the elevator even when the landing inspection device is inundated by water discharge or the like during fire fighting activities. An object of the present invention is to provide a machine roomless elevator, an elevator control device, and an operation method of an emergency machine roomless elevator.

  A first aspect for achieving the above object is that an elevator control device installed in a hoistway above the uppermost floor level of a building where the elevator is installed, and an inspection of the elevator control device installed at a landing And a fire fighting operation switch provided in the car, and the elevator control device includes a separation unit for separating the landing inspection device, and a separation control unit for controlling the separation unit. The disconnect control unit outputs an disconnect command to the disconnect unit to disconnect the landing inspection device from the elevator control unit when it is determined that the fire fighting operation switch is turned on. It is a machine roomless elevator.

  The second aspect is a landing inspection device installed in the hoistway above the top floor level of the building where the elevator is installed, and a fire fighting operation switch provided in the car. An elevator control device for an emergency machine roomless elevator connected to each other, the elevator control device comprising: a separation unit that separates the landing inspection device; and a separation control unit that controls the separation unit, wherein the separation control unit includes the fire fighting unit When it is determined that the operation switch is turned on, the elevator control device is characterized by outputting a disconnection command to the disconnection unit to disconnect the landing inspection device.

  In the third aspect, the elevator control device installed in the hoistway above the top floor of the building where the elevator is installed is connected to the landing inspection device that is installed in the landing and used for checking the elevator. A method for operating an emergency machine roomless elevator, wherein a disconnection control unit in the elevator control device determines that a fire has occurred in the building and that a fire-fighting operation switch provided in the car has been turned on. Then, a disconnection command for disconnecting the landing inspection device from the elevator control device is output to a disconnection unit in the elevator control device, and the disconnection unit transmits the landing inspection device from the elevator control device in response to the disconnection command. This is a method for operating an emergency machine room-less elevator, characterized by being separated.

Explanatory drawing which shows the whole structure of the emergency machine roomless elevator which concerns on 1st Embodiment. The block diagram which shows the principal part structure of the emergency machine roomless elevator which concerns on 1st Embodiment. The flowchart which shows operation | movement of 1st Embodiment. Explanatory drawing which shows the whole structure of the emergency machine roomless elevator which concerns on 2nd Embodiment. The block diagram which shows the principal part structure of the emergency machine roomless elevator which concerns on 2nd Embodiment. The flowchart which shows operation | movement of 2nd Embodiment. Explanatory drawing which shows the whole structure of the emergency machine roomless elevator which concerns on 3rd Embodiment. The block diagram which shows the principal part structure of the emergency machine roomless elevator which concerns on 3rd Embodiment. The flowchart which shows operation | movement of 4th Embodiment. The block diagram which shows the principal part structure of the emergency machine roomless elevator which concerns on 5th Embodiment.

<First Embodiment>
FIG. 1 shows the overall configuration of a first embodiment of an emergency machine room-less elevator according to the embodiment.

  The illustrated emergency machine roomless elevator 2A includes a hoisting machine 6 provided on the upper part of a hoistway 4 of a building, a car 10 and a counterweight 12 suspended by a main rope 8 via the hoisting machine 6. The car 10 moves up and down in the hoistway 4 with the driving force of the hoisting machine 6. The emergency machine roomless elevator 2A is set above the top floor level of the building, and is connected to the car 10 via the tail cord 14, and the top floor 18 of the building. And a landing inspection device 20 that is connected to the elevator control device 16 via a cable 22 and used for inspection of the elevator.

  A fire fighting operation switch 24 is provided in the car 10 for starting emergency operation set in advance when a fire occurs. In addition, a landing inspection switch 26 and an emergency stop switch 28 that are used when the elevator control device 16 is inspected are installed in the landing inspection device 20.

  FIG. 2 shows the configuration of the main part of the first embodiment.

  The landing inspection switch 26 of the landing inspection device 20 has a function of shifting the elevator control device 16 to the inspection operation mode when the ON operation is performed and the contact 26a is closed. Further, the emergency stop switch 28 of the landing inspection device 20 is turned on when any trouble occurs in the elevator, and when the contact 28a is closed, the elevator control device 16 is shifted to the emergency stop mode, and the elevator is raised or lowered. It has a function to stop.

  The elevator control device 16 includes a landing inspection device separation unit 30, a landing inspection device separation control unit 32, and a drive control unit 34 that drives and controls the hoisting machine 6. The landing inspection device disconnecting unit 30 and the landing inspection device disconnecting control unit 32 constitute “detaching means” for electrically disconnecting the landing inspection device 20 from the elevator control device 16 in the event of a fire.

  The landing inspection device disconnecting unit 30 is connected to the landing inspection device 20 and has a function of disconnecting the landing inspection device 20 from the elevator control device 16 when the fire fighting operation switch 24 is turned on. Specifically, relay contacts 30a and 30b connected to the landing inspection switch 26, a relay contact 30c for bypassing a safety circuit (not shown), and relay contacts 30d and 30e connected to the emergency stop switch 28. And. The safety circuit has a function of preventing a car speed abnormality, a stop position abnormality, and the like. The relay contact 30c constitutes a bypass circuit for effectively maintaining the function of the safety circuit even when the emergency stop switch 28 is turned on and the landing inspection device 20 is disconnected.

  The landing inspection device disconnection control unit 32 is connected to the fire fighting operation switch 24 in the car 10 and is connected to the landing inspection device 20 and the drive control unit 34 in the elevator control device 16. The landing inspection device disconnection control unit 32 monitors whether or not the fire fighting operation switch 24 is turned on. When the on operation is detected, the landing inspection device disconnection control unit 32 outputs a disconnection command to the landing inspection device disconnection unit 30. While disconnecting the inspection device, a fire fighting operation command is output to the drive control unit 34.

  FIG. 3 is a flowchart showing the operation of the first embodiment.

  The landing inspection device disconnection control unit 32 of the elevator control device 16 monitors whether or not the fire fighting operation switch 24 is turned on (step S2). When the fire fighting operation switch 24 is turned on (step S2 Yes), it is determined whether the current operation mode is the normal operation mode or the inspection operation mode (step S4). If it is not the normal operation mode, that is, if it is the inspection operation mode, there is a high possibility that the maintenance operation is currently being performed by the maintenance personnel, so that the stand-by state is entered without disconnecting the landing inspection device 20. If it is the normal operation mode (step S4 Yes), it is determined that the hall inspection device 20 can be disconnected from the elevator control device 16, and the following processing is executed. First, in order to disconnect the landing inspection switch 26, the landing inspection device disconnection control unit 32 outputs a disconnection command for disconnecting the relay contacts 30 a and 30 b of the landing inspection device disconnection unit 30 to the landing inspection device disconnection unit 30. As a result, the relay contacts 30a and 30b are turned off, and the landing inspection switch 26 is disconnected. Further, the disconnection command for the relay contacts 30a and 30b becomes an ON command for the relay contact 30c of the safety circuit, and the relay contact 30c is closed. Thereby, a bypass circuit of the safety circuit is formed. Further, the relay contacts 30d and 30e to which the emergency stop switch 28 is connected are turned off. Thereby, the emergency stop switch 28 is disconnected, and the disconnection process of the landing inspection device 20 is completed (step S6). When the disconnection process of the landing inspection device 20 is completed, the fire fighting operation is started (step S8). When the fire fighting operation is finished and the fire-fighting operation switch 24 is turned off, the landing inspection device disconnection control unit 32 outputs a return command to the landing inspection device disconnection unit 30, and the landing inspection device 20 and the elevator control device 16. Regain connection with.

  As described above, according to the first embodiment, when a fire occurs and the fire fighting operation switch 24 of the car 10 is turned on by a firefighter or the like, the landing inspection device 20 is disconnected from the elevator control device 16. Even if the landing inspection device 20 is flooded during the activity due to water discharge or the like, it is possible to continue the fire-fighting operation without affecting the operation of the elevator.

  Further, when the firefighting operation switch 24 is turned on, if the elevator operation mode is the inspection operation mode, the landing inspection device 20 is not disconnected from the elevator control device 16, so that the maintenance staff is checking during the inspection. It is possible to prevent the occurrence of a situation where the landing inspection device 20 is disconnected and cannot be inspected.

  Furthermore, since the safety circuit relationship of the hall inspection device 20 can be bypassed and effectively held before disconnection, it is possible to prevent the occurrence of an abnormal stop of the elevator due to the failure of the safety circuit. It becomes possible.

Second Embodiment
FIG. 4 shows the overall configuration of the emergency machine roomless elevator 2B according to the second embodiment, and FIG. 5 shows the configuration of the main part in the second embodiment. The same components as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  In the hall inspection device 20 according to the second embodiment, in addition to the hall inspection switch 26 and the emergency stop switch 28, two operation switches 36 and 38 are provided. The operation switches 36 and 38 are used by maintenance personnel for up and down operation of the car 10 during the inspection operation. When the fire fighting operation switch 24 is turned on, the operation switches 36 and 38 are also disconnected from the elevator control device 16.

  Specifically, as shown in FIG. 5, relay contacts 30 f, 30 g, 30 h, 30 i connected to the operation switches 36, 38 are provided in the landing inspection device disconnecting unit 30, and the landing inspection device disconnecting control unit 32 The relay contacts 30f, 30g, 30h, and 30i are opened by the disconnection command, and the operation switches 36 and 38 are disconnected from the elevator control device 16.

  The operation of the second embodiment will be described using the flowchart of FIG.

  Similarly to the first embodiment, the landing inspection device disconnection control unit 32 of the elevator control device 16 monitors whether or not the fire fighting operation switch 24 is turned on (step S12). When the fire fighting operation switch 24 is turned on (step S12 Yes), it is determined whether the current operation mode is the normal operation mode or the inspection operation mode (step S14). If it is not the normal operation mode, that is, if it is the inspection operation mode, there is a high possibility that the maintenance operation is currently being performed by the maintenance personnel, so that the stand-by state is entered without disconnecting the landing inspection device 20. If it is the normal operation mode (step S14 Yes), it is determined that the hall inspection device 20 can be disconnected from the elevator control device 16, and the following processing is executed. First, in order to disconnect the landing inspection switch 26, the landing inspection device disconnection control unit 32 outputs a disconnection command for disconnecting the relay contacts 30 a and 30 b of the landing inspection device disconnection unit 30 to the landing inspection device disconnection unit 30. As a result, the relay contacts 30a and 30b are turned off, and the landing inspection switch 26 is disconnected. Further, the disconnection command for the relay contacts 30a and 30b becomes an ON command for the relay contact 30c of the safety circuit, and the relay contact 30c is closed. Thereby, a bypass circuit of the safety circuit is formed. Further, the relay contacts 30d and 30e to which the emergency stop switch 28 is connected are turned off. As a result, the emergency stop switch 28 is disconnected. Furthermore, the relay contacts 30f, 30g, 30h, 30i to which the operation switches 36, 38 are connected are turned off, the operation switches 36, 38 are disconnected, and the disconnection process of the landing inspection device 20 is completed (step S16). When the disconnection process of the landing inspection device 20 is completed, the fire fighting operation is started (step S8).

  As described above, according to the second embodiment, in addition to the same effects as those of the first embodiment, the operation switches 36 and 38 can also be disconnected. Regardless of the time, it is possible to prevent the car 20 from being operated by a third party.

<Third Embodiment>
FIG. 7 shows the overall configuration of an emergency machine room-less elevator 2C according to the third embodiment, and FIG. 8 shows the configuration of the main part in the third embodiment. The same components as those in FIGS. 4 and 5 are denoted by the same reference numerals, and the description thereof is omitted.

  Usually, elevators are supervised and managed in monitoring rooms and disaster prevention centers. In the emergency machine roomless elevator 2C according to the third embodiment, an emergency call return switch 42 is installed in a monitoring room (which may be a disaster prevention center) 40. The emergency call return switch 42 is a landing for the elevator control device 16. The inspection device disconnection control unit 32 is connected.

  The emergency call back switch 42 is a switch for calling back the car 10 to a preset evacuation floor (usually the first floor), and the landing inspection device 20 is activated even when the emergency call back switch 42 is turned on. Disconnected from the elevator controller 16.

  As described above, according to the third embodiment, the same effects as those of the first and second embodiments can be obtained. When the emergency call return switch 42 provided in the monitoring room 40 is turned on, the car 10 The landing inspection device 20 can be disconnected from the elevator control device 16 without turning on the fire-fighting operation switch 24, and convenience and safety during fire fighting activities can be improved.

<Fourth embodiment>
FIG. 9 is a flowchart showing a processing procedure of the fourth embodiment. In FIG. 9, the processes in steps S22 to S28 are the same as the processes in steps S12 to S18 shown in FIG. 6, and only the characteristic part of the fourth embodiment will be described.

  In the fourth embodiment, after the landing inspection switch 26 is disconnected from the elevator control device 16 and the fire fighting operation is started, the landing inspection device disconnection control unit 32 determines whether or not there is an input signal from the landing inspection switch 26. Monitor (step S30). If the input signal is off (step S30 YES), the landing inspection device disconnecting unit 30 determines that the landing inspection switch 26 is disconnected and continues the fire fighting operation as it is (step S32). On the other hand, if the input signal is not OFF (NO in step S30), it is considered that some abnormality has occurred in the landing inspection device disconnecting unit 30 (step S34).

  As described above, according to the fourth embodiment, the same effects as those of the first to third embodiments can be obtained, and the abnormality of the landing inspection device separation part 30 can be reliably detected.

<Fifth Embodiment>
FIG. 10 shows the configuration of the main part of the fifth embodiment. In addition, the same number is attached | subjected to the same component as 3rd Embodiment shown in FIG. 8, and the description is abbreviate | omitted.

  In the fifth embodiment, a relay contact 30 j that is turned on simultaneously with the relay contacts 30 a to 30 i is provided in the landing inspection device separation unit 30, and an abnormality determination unit 44 is provided in the landing inspection device separation control unit 32.

  The abnormality determination unit 44 is connected to the fire fighting operation switch 24 and the relay contact 30j. When the relay contact 30j is turned on even though the fire fighting operation switch 24 is turned on, the landing inspection device It is determined that the separation part 30 is abnormal. That is, as described in the first embodiment, when the fire fighting operation switch 24 is turned on, the landing inspection device disconnection control unit 32 issues a disconnection command for disconnecting the relay contacts 30a and 30b of the landing inspection device disconnection unit 30. It outputs to the inspection device separation part 30. As a result, the relay contacts 30a and 30b are turned off, and the landing inspection switch 26 is disconnected. At the same time, the relay contact 30c is closed, a bypass circuit of the safety circuit is formed, and the relay contacts 30d and 30e to which the emergency stop switch 28 is connected are turned off. Thereby, the emergency stop switch 28 is disconnected, and the disconnection process of the hall inspection device 20 is completed. At this time, since the relay contact 30j is also turned off, the abnormality determination unit 44 can confirm that the relay has been correctly operated by turning on the fire fighting operation switch 24, and can ensure the consistency of the operation. . On the other hand, when the relay contact 30j remains on even though the firefighting operation switch 24 is turned on, it is understood that the relay contacts 30a to 30i of the landing inspection device disconnecting portion 30 did not operate correctly. it can.

  As described above, according to the fifth embodiment, the same effects as those of the first to third embodiments can be obtained, and an abnormal operation of the landing inspection device disconnecting unit 30 can also be detected.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  2A, 2B, 2C: Machine roomless elevator, 4: Hoistway, 6: Hoisting machine, 8: Main rope, 10: Car, 12: Balance weight, 14: Tail cord, 16: Elevator control device, 20: Landing inspection device, 22: Cable, 24: Firefighting operation switch, 26: Landing inspection switch, 28: Emergency stop switch, 30: Landing inspection device separation part (detachment part), 32: Inspection device separation control part (detachment control part) , 34: drive control unit, 36: operation switch, 38: operation switch, 40: monitoring room, 42: emergency call back switch, 44: abnormality determination unit.

Claims (8)

An elevator control device installed in a hoistway above the top floor level of the building where the elevator is installed;
A landing inspection device installed at a landing and used for inspection of the elevator control device;
With fire fighting operation switch provided in the car,
The elevator control device includes a separation unit that separates the landing inspection device, and a separation control unit that controls the separation unit,
When it is determined that the fire fighting operation switch is turned on, the disconnect control unit outputs a disconnect command to the disconnect unit and disconnects the landing inspection device from the elevator control device, while monitoring the operation mode of the elevator When the operation mode of the elevator is the inspection operation mode, the landing inspection device is not disconnected.
An emergency machine room-less elevator. The hall inspection device includes at least a hall inspection switch for switching the operation mode of the elevator to the inspection operation mode and an emergency stop switch for stopping the operation of the elevator in an emergency.
When it is determined that the firefighting operation switch is turned on, the disconnection control unit outputs a disconnection command to disconnect the landing inspection switch and the emergency stop switch from the elevator control device to the disconnection unit.
The emergency machine room-less elevator according to claim 1. The hall inspection device further includes an operation switch for driving the car in the inspection operation mode,
When the disconnect control unit determines that the fire fighting operation switch is turned on, the disconnect control unit outputs a disconnect command to disconnect the operation switch from the elevator control device, to the disconnect unit.
The emergency machine room-less elevator according to claim 1 or 2, characterized in that The disconnecting unit includes a bypass circuit for effectively holding a safety circuit provided in the hall inspection device, and when the fire fighting operation switch is turned on, the emergency circuit is turned on and then the emergency circuit is turned on. Disconnecting the stop switch from the elevator control device;
The emergency machine room-less elevator according to claim 2. An emergency call back switch is installed outside the hoistway to bring the car back to the preset evacuation floor.
The disconnect control unit, when it is determined that the emergency call back switch is turned on, outputs a disconnect command to disconnect the landing inspection device from the elevator control device to the disconnect unit,
The emergency machine room-less elevator according to any one of claims 1 to 4 . The separation control unit is configured to turn the separation inspection unit off when the landing inspection switch is detected to be on after the landing inspection device is disconnected from the elevator control device by turning on the fire fighting operation switch. It is determined that an abnormality has occurred.
The emergency machine room-less elevator according to claim 2. The separation control unit has an abnormality determination unit,
The abnormality determination unit monitors the separation state of the separation unit and monitors the on / off state of the fire fighting operation switch. When the fire fighting operation switch is in the off state, the landing inspection device is disconnected. If it is, it is determined that the disconnection part is abnormal.
The emergency machine roomless elevator according to any one of claims 1 to 6 . The disconnection control unit outputs a return command to the disconnection unit when the fire fighting operation switch is turned off, and recovers the connection between the landing inspection device and the elevator control device,
The emergency machine roomless elevator according to any one of claims 1 to 7 .

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