JP2013193878A - Passenger rescue device for elevator, elevator system with the same, and passenger rescue method for elevator - Google Patents

Abstract

An apparatus and method for rescuing a passenger trapped in an elevator car by a simple operation.
SOLUTION: A liquid injection tank 7 attached to a car 2 installed in an elevator hoistway 1 and capable of injecting liquid, a liquid storage tank 10 for storing liquid, and liquid from the liquid storage tank 10 to the liquid injection tank 7 are provided. A liquid injection pump 11 for transporting liquid, a liquid discharge pump 9 for removing liquid from the liquid injection tank 7, a liquid injection hose 12 connecting the liquid injection tank 7 and the liquid storage tank 10, and a liquid injection tank 7 and liquid discharge A drainage hose 16 connected to the port 15 is provided, and the drainage port 15 uses an elevator passenger rescue device provided in the liquid storage tank 10.
[Selection] Figure 1

Description

  The present invention relates to an apparatus and method for rescuing a passenger trapped in an elevator car.

  Since the car and the counterweight in the elevator hoistway are suspended in a fishing bottle manner by the suspension means of the main rope, the car and the counterweight are raised and lowered in the opposite directions. Therefore, when a passenger is trapped in the car by shutting off the power source or the like, usually, by releasing the brake device that brakes the rotation of the driving sheave around which the suspension means is wound, Lower the heavier counterweight and move the car to the nearest floor.

  However, if the weight of the car and the weight of the counterweight are the same, the car cannot be raised or lowered even if the brake device is released.

  Patent Document 1 discloses a passenger rescue method in which a weight such as a sand bag or a water tank is placed on the ceiling of the car and the car is lowered to the nearest rescue floor when the elevator drive device cannot be operated. Has been.

  In Patent Document 2, a water injection tank provided in an elevator car, a water supply opening provided in the water injection tank, one end connected to a water supply opening, and the other end connected to a water injection opening provided outside the hoistway. An elevator rescue device is disclosed that includes a hose, a drain port provided in a water injection tank, and a drain port opening / closing device that opens and closes the drain port.

JP 2000-169055 A JP 2007-161446 A

  In the rescue method described in Patent Document 1, a rescue worker who has been contacted in an emergency places a weight such as a sand bag or a water tank on the ceiling of the car, so that the car side and the counterweight side However, there remains a problem that it takes time to carry in the weight and the like from the outside.

  In the rescue device described in Patent Document 2, the liquid poured into the water injection tank can be drained as it is into the pit by installing a drainage channel or drainage device in the pit of the hoistway. However, depending on the drainage method, the drained liquid is applied to the electrical equipment and wiring in the pit, causing a problem that causes destruction of the electrical equipment and wiring corrosion.

  An object of the present invention is to provide an apparatus and a method for rescuing a passenger trapped in an elevator car by a simple operation.

  An elevator passenger rescue device according to the present invention includes a liquid injection tank attached to a car installed in an elevator hoistway and capable of injecting liquid, a liquid storage tank for storing liquid, and liquid from the liquid storage tank to the liquid injection tank. A liquid injection pump that transports the liquid, a liquid discharge pump that removes liquid from the liquid injection tank, a liquid injection hose that connects the liquid injection tank and the liquid storage tank, and a liquid discharge that connects the liquid injection tank and the liquid discharge port A drainage port is provided in the liquid storage tank.

  According to the present invention, it is possible to easily rescue a passenger trapped in an elevator car and return to the elevator after the rescue, and the liquid is in the pit without draining into the pit. Since it does not affect the electrical equipment and wiring, the electrical equipment can be prevented from being destroyed and wiring corrosion.

It is a whole lineblock diagram showing the elevator system provided with the passenger rescue device of an example. It is a cross-sectional view which shows the hoistway etc. of the elevator system of FIG. It is a whole block diagram which shows the elevator system provided with the passenger rescue apparatus of the other Example. It is a whole block diagram which shows the elevator system provided with the passenger rescue apparatus of the other Example. It is a partial block diagram which shows the passenger rescue apparatus of another Example.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is an overall configuration diagram illustrating an elevator system including a passenger rescue device according to an embodiment.

  In this figure, an elevator system includes an elevator hoistway 1, a car 2 that moves up and down in the elevator hoistway 1, a counterweight 3 that moves up and down in a direction opposite to the car 2 in the elevator hoistway 1, a car 2 and a counterweight 3, The main rope 4 is suspended in the shape of a fishing bottle, the driving sheave 5 of the hoisting machine around which the main rope 4 is wound, the deflecting wheel 6 around which the main rope 4 is wound, and the like. The car 2 moves up and down in the elevator hoistway 1 as the main rope 4 moves as the drive sheave 5 rotates.

  The weight of the counterweight 3 is set so that the weight of the car 2 hanging on the main rope 4 and the weight of the counterweight 3 are substantially the same when half the capacity is on the car 2.

  In the figure, a liquid injection tank 7 is installed on the side surface of the car 2. A liquid injection port 8 is installed in the upper part of the liquid injection tank 7, and a liquid discharge pump 9 is installed in the lower part of the liquid injection tank 7. Further, a liquid storage tank 10 is installed in the elevator hoistway 1, and a liquid (for example, water or oil) is stored therein. The liquid in the liquid storage tank 10 is injected into the liquid injection tank 7 through the liquid injection pump 11, the liquid injection hose 12 and the liquid injection port 8. The liquid injection hose 12 is supported by being wound around liquid injection hose deflectors 13 and 14. The liquid injection into the liquid injection tank 7 is performed by operating the liquid injection pump 11 by, for example, pressing a liquid injection switch installed in the machine room.

  The liquid in the liquid injection tank 7 is discharged to the liquid storage tank 10 through the liquid discharge pump 9, the liquid discharge hose 16, and the liquid discharge port 15 provided in the liquid storage tank 10 to reduce the weight of the basket 2. It can be made to. The drainage hose 16 is supported by being wound around a drainage hose deflector 17, 18, 19, 20. A drain switch for draining liquid from the liquid injection tank 7 may be installed in the machine room in the same manner as the liquid injection switch.

  Since the car 2 and the liquid injection pump 11 are suspended in the shape of a fishing bottle by the suspension means of the liquid injection hose 12, they move up and down in opposite directions. Since the drainage pump 9 moves up and down together with the car 2, the car 2 and the drainage port 15 move up and down in the same direction.

  FIG. 2 is a cross-sectional view showing a hoistway and the like of the elevator system of FIG.

  In this figure, the example of arrangement | positioning of the cage | basket | car 2, the balance weight 3, the injection tank 7, and the liquid storage tank 10 in the elevator hoistway 1 is shown.

  When a passenger trapped in the car 2 is rescued, the weight of the car 2 is changed by injecting liquid into the liquid injection tank 7 or discharging the liquid from the liquid injection tank 7.

  An operation when the passenger confined in the car 2 is rescued by the power supply shutoff will be described.

  If it is trapped in the car 2, the elevator operator goes to the place where the hoisting machine is installed and applies the brake of the brake device (not shown) that controls the rotation of the drive sheave 5 Open. Thereby, when there is a difference in weight between the car 2 and the counterweight 3, the heavier one of the car 2 or the counterweight 3 is lowered. In this case, the car 2 is moved to the nearest floor and the passengers in the car 2 are rescued.

  However, when the weights of the car 2 and the counterweight 3 are the same, the car 2 is not balanced even if the brake is released because the counterweight is balanced. In this case, the worker stops releasing the brake and returns to the brake operation state. A liquid such as water in the liquid storage tank 10 is injected into the liquid injection tank 7 by pressing a liquid injection switch installed in the machine room. Thereby, the weight of the liquid injected into the liquid injection tank 7 is added to the weight of the car 2. The operator injects liquid until the combined weight of the car 2 and the liquid filling tank 7 becomes heavier than the counterweight 3, then releases the brake and moves the car 2 to the nearest floor. Rescue passengers in car 2.

  In order to restore the elevator to normal operation after the passengers in the car 2 are rescued, the operator operates the drainage pump 9 by pushing the drainage switch installed in the machine room, and injects the liquid. The liquid in the tank 7 is discharged. Thereby, the liquid in the liquid injection tank 7 can be returned to a predetermined state during normal operation.

  According to this embodiment, since the liquid accumulated in the liquid injection tank 7 is discharged to the liquid storage tank 10 using the drainage pump 9, the liquid accumulated in the liquid injection tank 7 is placed in the pit of the elevator hoistway 1. It will not be discharged. For this reason, the liquid is not applied to the electrical equipment and wiring in the pit, and the electrical equipment in the pit can be prevented from being destroyed and wiring corrosion.

  The position of the drainage port 15 is not particularly limited as long as water is not applied to the electrical equipment and wiring in the pit. Even if the drainage port 15 is provided in the storage tank 10, the drainage may be discharged outside without being stored in the storage tank 10.

  FIG. 3 is an overall configuration diagram illustrating an elevator system including a passenger rescue device according to another embodiment.

  The difference from the first embodiment is that the liquid is not supplied to the liquid injection tank 7 from the liquid storage tank 101 installed on the roof through the liquid injection hose 12 and the liquid injection port 8 without using the liquid injection pump 11. inject. The amount of liquid injection is adjusted by opening and closing a valve (not shown) provided in the liquid injection hose 12.

  In this figure, the liquid discharge port 15 is installed in the liquid storage tank 10, but the present invention is not limited to this, and the liquid discharge port 15 may be provided in the liquid storage tank 101. Further, the position of the drainage port 15 is not limited as long as the water does not cover the electrical equipment or wiring in the pit. Furthermore, it is desirable that the liquid storage tank 101 be installed above the height at which the car 2 reaches.

  According to the present embodiment, the liquid can be injected even in a situation where the liquid injection pump cannot be operated due to a power failure.

  FIG. 4 is an overall configuration diagram illustrating an elevator system including a passenger rescue device according to another embodiment.

  In this figure, a liquid injection tank 107 is attached to the lower surface of the car 2. The liquid injection port 108 is provided on the side surface of the liquid injection tank 107. Further, as in the first embodiment, a drainage pump 109 is provided below the liquid injection tank 107.

  According to the present embodiment, the space in the elevator hoistway 1 can be further effectively utilized, and the capacity of the car 2 can be increased.

  FIG. 5 is a partial configuration diagram illustrating a passenger rescue apparatus according to another embodiment.

  In this figure, a liquid absorbing material 208 (for example, a water absorbing material or an oil absorbing material) is enclosed in a liquid injection tank 207 provided on the lower surface of the car 2. The liquid absorbing material 208 is preferably a liquid absorbing polymer or the like. Water can be injected into the liquid injection tank 207 via the liquid injection hose 12 and the liquid injection port 108 to cause the liquid absorbing material 208 to absorb water and increase the weight of the car 2 side. The liquid injection tank 207 enclosing the liquid absorbing material 208 can be removed. This eliminates the need to drain the liquid.

  In the present embodiment, the liquid injection tank 207 can be removed from the car 2 after the passenger in the car 2 is rescued. The liquid injection tank 207 enclosing the liquid absorbing material 208 may be replaced with a new one.

  According to the present embodiment, since it is not necessary to discharge the liquid, it is possible to prevent damage to the electrical equipment in the pit and wiring corrosion.

  In the above embodiment, the liquid to be injected is described assuming that water or oil is used. However, the liquid to be injected is not limited to this, and a slurry, sand, powder, or the like having high fluidity is used as the liquid to be injected. May be. When oil is used, there is an advantage that it is less likely to rot than water.

  1: Elevator hoistway, 2: Car, 3: Balance weight, 4: Main rope, 5: Drive sheave, 6: Brake, 7, 107, 207: Injection tank, 8, 108: Injection port, 9 , 109: drainage pump, 10, 101: liquid storage tank, 11: liquid injection pump, 12: liquid injection hose, 13, 14: liquid injection hose deflector, 15: liquid discharge port, 16: liquid discharge hose, 17 18, 19, 20: drainage hose deflector, 208: liquid absorbing material.

Claims (10)

  An injection tank attached to a car installed in an elevator hoistway and capable of injecting liquid; a storage tank for storing the liquid; an injection pump for transporting the liquid from the storage tank to the injection tank; A liquid discharge pump for removing the liquid from the liquid injection tank, a liquid injection hose connecting the liquid injection tank and the liquid storage tank, and a liquid discharge hose connecting the liquid injection tank and the liquid discharge port An elevator passenger rescue device, wherein the drainage port is provided in the liquid storage tank.   A liquid injection tank attached to a car installed in an elevator hoistway and capable of injecting liquid, a liquid storage tank for storing the liquid, a liquid discharge pump for removing the liquid from the liquid injection tank, and the liquid injection tank A liquid supply hose connecting the liquid storage tank and the liquid storage tank, and a liquid discharge hose connecting the liquid injection tank and the liquid discharge port, and the liquid storage tank is installed above the height reached by the car Elevator passenger rescue device characterized by that.   3. The passenger rescue apparatus according to claim 2, wherein the drainage port is provided in the liquid storage tank.   The passenger rescue apparatus according to any one of claims 1 to 3, wherein the drainage pump returns the liquid from the liquid injection tank to the liquid storage tank.   A liquid injection tank attached to a car installed in an elevator hoistway and capable of injecting liquid, a liquid storage tank for storing the liquid, and a liquid injection hose connecting the liquid injection tank and the liquid storage tank An elevator passenger rescue device, wherein the liquid injection tank has a liquid absorbing material that absorbs the liquid.   6. The passenger rescue device according to claim 5, wherein the liquid injection tank is removable from the car.   The passenger rescue device according to any one of claims 1 to 6, wherein the liquid is water or oil.   The elevator system provided with the passenger rescue apparatus as described in any one of Claims 1-7.   Liquid is injected from a liquid storage tank into a liquid injection tank attached to a car installed in an elevator hoistway, the car is moved to the nearest floor, and passengers in the car are rescued, and then the liquid injection tank An elevator passenger rescue method, wherein the liquid is discharged to the outside of the elevator hoistway or to the liquid storage tank.   Passenger in the car by injecting the liquid from the storage tank into the liquid injection tank having the liquid absorbing material that absorbs the liquid attached to the car installed in the elevator hoistway and moving the car to the nearest floor And then removing the liquid injection tank from the car.

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