JP2021035887A - Emergency flood operation method of elevator - Google Patents

Abstract

To provide an elevator that can sense even a small amount of water and perform an emergency operation when flooded.SOLUTION: An elevator 10 comprises a shaft 20 connecting between landing halls 21, a car 30 running on the shaft, a car control unit 41 controlling the car, and an elevator control unit 40 controlling the travel of the car. The car is equipped with flood detecting means 50 which is placed on the top surface of the top plate 32 to detect flood on the top plate and transmit the presence of flood to the car control unit. When the detecting means detects the flood, the car control unit sends the flood signal to the elevator control unit, and when the elevator control unit receives the flood signal, it performs an emergency flood operation of the car.SELECTED DRAWING: Figure 1

Description

The present invention relates to an elevator in which the water droplet detecting means is arranged on the top plate of the car, and a method of operating the water-covered control of the elevator.

The elevator is configured by arranging a car that can be raised and lowered in the shaft, and the user gets on and off through the landing side door provided on the floor of the building. The car is equipped with various electronic devices such as a car control device, an operation panel inside the car, lighting, and air conditioning equipment. If rainwater or the like enters the shaft or from the door on the landing side, there is a risk that the electronic devices in the car may have poor insulation or malfunction. In addition, the ingress of water into the car may cause corrosion of the car.

For such water exposure, for example, in Patent Document 1, water flow sensors are arranged on the top plate of the car and on the pits, respectively. Then, the car is moved to an evacuation floor such as the top floor according to the output of the water flow sensor on the top plate of the car, and the service operation control of the car is performed to the upper floor according to the output of the water flow sensor of the pit.

Japanese Unexamined Patent Publication No. 08-119552

However, since the water flow sensor detects the inflow or submersion of a relatively large amount of water, the car or electronic device may already be submerged or submerged when the water flow sensor detects water.

Further, even if the car is retracted to the top floor, water may flow from the floor surface of the top floor to the car floor side, which may lead to poor insulation or operation of electronic devices, corrosion of the car, and the like.

An object of the present invention is to provide an elevator capable of detecting even a small amount of water and performing a water control operation.

Another object of the present invention is to provide a water-covered control operation method for an elevator that can reduce the water cover of a car as much as possible.

The elevator of the present invention
The shaft that connects the landings and
A basket running on the shaft,
A car control device that controls the car,
An elevator control device that controls the running of the car,
It ’s an elevator equipped with
The car is provided with a car water drop detecting means which is arranged on the upper surface of the top plate, senses water droplets adhering to the top plate, and transmits water to the car control device.
When the water detection means detects water, the car control device transmits a water signal to the elevator control device, and when the elevator control device receives the water signal, the water control of the car is performed. Drive.

The car water droplet detecting means can be arranged on the front side where the car door is provided.

A water guiding means for collecting a part of the water flowing into the top plate is arranged on the top plate of the car, and the water droplet detecting means on the car is arranged at the lowest position of the water guiding means. be able to.

The car water droplet detecting means may be a rain sensor, and the water guiding means may be a gutter.

The car water droplet detecting means is a camera or a rain light sensor, and the top plate of the car has a transparent rain catcher arranged with a slope toward the front of the car, and the rain catcher is provided. It is possible to mount the above-mentioned water drop detecting means on the car behind the car.

In addition, the method of water-controlled operation of the elevator of the present invention is as follows.
The shaft that connects the landings and
A basket running on the shaft,
It is a water control operation method of an elevator equipped with
When the water on the car or the shaft is detected, the car is moved to a position where the floor level of the car is higher than the floor level of the top floor to evacuate.

According to the elevator of the present invention, the water droplet detecting means is arranged on the top plate of the car, and the water droplet detecting means detects the water droplets so that the elevator is operated under water control. Since the water droplet detecting means can detect an extremely small amount of water, it is possible to prevent the electronic device mounted on the car or the car from being inundated at an early stage.

Further, according to the water-covered control operation method of the elevator of the present invention, by raising the floor level of the car higher than the floor level of the top floor, even if water flows into the shaft from the floor surface of the top floor, It is possible to prevent the flow into the car. Therefore, it is possible to suppress water damage to the electronic devices mounted on the car and the car as much as possible, prevent insulation failure and malfunction of the electronic devices, corrosion of the car, etc., and restore the elevator when it is flooded. Can be accelerated.

FIG. 1 is an explanatory diagram showing a schematic configuration of an elevator. FIG. 2 is a block diagram of an elevator according to an embodiment of the present invention. FIG. 3 is a perspective view of the circled portion A of FIG. FIG. 4 is a cross-sectional view of the circled portion B of FIG. 1, which is a cross-sectional view taken along the drainage hole portion of the sill. FIG. 5 is an explanatory view showing a state in which the car is retracted at a position above the top floor during the water-covered control operation according to the embodiment of the present invention. FIG. 6 is a perspective view of the front of the car showing the mounting form of the different car water droplet detecting means of the present invention. FIG. 7 is a perspective view of the front of the car using a camera or a rain sensor as the car top detection means.

Hereinafter, the elevator 10 of the present invention will be described with reference to the drawings. In the following, an elevator 10 that operates one car 30 will be illustrated, but the present invention can also be applied to an elevator that operates a plurality of cars by group management. Further, in the following description, the car side door 31 side leading from the car 30 to the landing 21 is appropriately referred to as the front of the car 30.

FIG. 1 is an explanatory diagram showing an embodiment of the elevator 10. The elevator 10 is configured to have a car 30 that can be raised and lowered in a shaft 20 that connects the landings 21 provided on each floor of the building. Generally, a machine room (not shown) is arranged at the top of the shaft 20, and an elevator control device 40 (see FIG. 2) that controls a drive mechanism such as a hoisting machine that raises and lowers the car 30 and the running of the car 30. Is installed.

The landing 21 is provided with a landing-side door 22 that opens and closes in response to the car-side door 31.

The car 30 is a housing on which the user rides, and a car side door 31 is attached to the opening. In the car 30, a car control device 41 is arranged on the upper surface of the top plate 32. The car control device 41 is connected to the elevator control device 40, and controls the opening and closing of the car side door 31, the operation panel inside the car, lighting, air conditioning, and the like. Various electric / electronic devices arranged in the car 30 are collectively referred to as an electronic device 42.

As shown in FIGS. 1 and 3, the car 30 has a water droplet detecting means 50 (hereinafter, appropriately referred to as “cage water droplet detecting means”) arranged on the upper surface of the top plate 32. More specifically, the car water droplet detecting means 50 is arranged on the front side of the car 30 above the car side door 31 so that water flowing into the shaft 20 from the floor surface of the landing 21 can be detected. As the car water droplet detecting means 50, one capable of detecting a small amount of water droplets can be adopted, and is arranged so that the sensing surface faces upward. As the car water droplet detecting means 50, a so-called rain sensor such as a comb-shaped electrode sensor can be exemplified, and the resistance value changes due to the water droplets adhering between the electrodes arranged in the comb shape, and water can be detected. As the car water droplet detecting means 50, for example, AKI-1805 (comb-shaped electrode sensor with heater) manufactured by Aszac Co., Ltd. may be adopted in order to prevent early recovery after water detection and malfunction due to humidity. Yes, but not limited to this. As the water droplet detecting means 50 on the car, for example, a camera that detects water droplets, a rainlight sensor that detects water droplets by a light reflection method using a light emitting element and a light receiving element, and a water pressure sensor can also be adopted.

Further, as shown in FIGS. 1 and 4, the car 30 also has a water droplet detecting means 60 (hereinafter, appropriately referred to as "car sewage water droplet detecting means") below the car side sill 33 which is a threshold of the car side door 31. Is placed. The car sewage drop detecting means 60 can also use the same sensor as the car sewage drop detecting means 50. When the car side sill 33 is provided with the drainage hole 34, it is desirable that the car sewage drop detecting means 60 is provided directly below the drainage hole 34. Further, the car sewage drop detecting means 60 can be arranged so as to protrude from the car side sill 33 to the landing side.

As shown in FIG. 2, the car water droplet detecting means 50 and the car sewage water droplet detecting means 60 are electrically connected to the car control device 41, and when water is detected, the change in resistance value is used as a current change in the car control device. Send to 41.

The water droplet detecting means 70 (hereinafter, “landing water droplet detecting means” as appropriate) may be arranged at the landing 21 as well. In this case, for example, the landing water droplet detecting means 70 may be arranged directly under the drainage hole 24 of the landing side sill 23 or protruding to the landing side from the landing side sill 23. As shown in FIG. 2, the landing water droplet detecting means 70 is electrically connected to the elevator control device 40.

As shown in FIG. 1, a damper 29 is provided in the pit 28 at the lower end of the shaft 20, and an inundation sensor 80 for detecting inundation into the pit 28 is arranged. A float sensor can be exemplified as the inundation sensor 80. The flood sensor 80 is electrically connected to the elevator control device 40 as shown in FIG.

With respect to the elevator 10 having the above configuration, in general operation, the car 30 travels in the shaft 20 by operating the operation panel of the car 30 or the landing 21, and in response to the car call or the landing call, at the predetermined landing 21. It stops and opens and closes the doors 22 and 31.

If water flows into the shaft 20 due to rain or water leakage in the vicinity of the landing 21, the car 30 may be flooded, resulting in poor insulation or malfunction of the electronic device 42 of the car 30, further corrosion of the car 30 or the like. There is. Therefore, in the present invention, the water droplet detecting means 50, 60, 70 and the inundation sensor 80 are arranged, and when any of the sensors detects the inundation, the elevator 10 is operated in the inundation control operation.

Specifically, when the car water droplet detecting means 50 or the car sewage water droplet detecting means 60 detects water reception, the car control device 41 transmits a water reception signal to the elevator control device 40. Further, when the landing water droplet detecting means 70 or the inundation sensor 80 detects the inundation, these sensors transmit the inundation signal to the elevator control device 40. Upon receiving the water reception signal, the elevator control device 40 shifts to the water reception control operation. In water control operation, when a passenger is in the car 30, the elevator control device 40 stops at the nearest floor, opens and closes the doors 22 and 31, disembarks the passenger, and then goes straight to the evacuation floor. , The operation of the elevator 10 is suspended. The evacuation floor can be the floor that is least likely to be flooded, for example the top floor. As a result, the water coverage of the car 30 can be reduced as much as possible, the insulation failure and operation failure of the electronic device 42 of the car 30 and the corrosion of the car 30 can be suppressed, and the replacement frequency of defective parts can also be reduced. Further, by suppressing the water exposure of the car 30, the time required for the drying process can be shortened, so that the time required for the restoration of the elevator 10 can be shortened. The water control operation can be returned to the normal operation by inspection by maintenance personnel, remote control, or the like.

In the present invention, by arranging the water droplet detecting means 50 and 60 in the car 30, it is possible to directly detect the water contact of the car 30. Further, since the water droplet detecting means 50 and 60 can detect an extremely small amount of water as compared with the submerged sensor and the like, there is an advantage that the water in the car 30 can be detected at an early stage and the operation can be started in the water control operation. There is.

In the water control operation of the elevator 10, when the top floor is the evacuation floor, it is difficult to suppress the intrusion of water flowing into the car 30 from the landing on the top floor. Therefore, as shown in FIG. 5, it is preferable that the evacuation position of the car 30 during the water control operation is the position C higher than the floor level 26 of the landing on the top floor. For example, the evacuation position of the car 30 can be exemplified as a position where the floor level 35 of the car 30 is 50 to 100 mm above the floor level 26 of the top floor. This position can be set as an evacuation position without adding a switch or the like by using an upper overshoot limit switch (limit switch: not shown) used for inspection or emergency.

By evacuating the car 30 at a position C higher than the floor level 26 on the top floor, the inflow of water from the landing on the top floor to the car 30 can be suppressed as much as possible, and the insulation failure and operation of the electronic device 42 of the car 30 can be suppressed. Defects, corrosion of the car 30 and the like are effectively suppressed.

In the present invention, the car water droplet detecting means 50 is arranged on the top plate 32 of the car 30. As a result, it is possible to cope with the inflow of water to the shaft 20 on the floor above the car 30 at an early stage.

Further, the car sewage drop detecting means 60 and the landing water droplet detecting means 70 can detect the inflow of water from the landing 21 into the car 30 at an early stage. In particular, the car sewage drop detecting means 60 has an advantage that it can detect even when a beverage or the like is spilled in the car 30 or is covered with water during cleaning.

FIG. 6 shows an embodiment of the car 30 in which the water cover of the top plate 32 can be detected at an earlier stage. As shown in the figure, the water guiding means 51 is arranged on the top plate 32 along the front surface of the car 30. The water guiding means 51 collects a part of the water that has flowed into the top plate 32, and for example, a gutter can be exemplified. The gutter, which is the water guiding means 51, is installed with a gradient by a support column 53 or the like toward one side or an appropriate place, and the water collecting port 52 is provided at the lowest position. A car water droplet detecting means 50 is arranged at the water collecting port 52 so that the water collected at the water collecting port 52 can be detected. According to the present embodiment, it is possible to effectively detect water exposure to a wider range of the top plate 32 of the car 30.

In the above embodiment, the water droplet detecting means are arranged under the top plate 32 and the car of the car 30, respectively, but a gutter serving as a water guiding means is also arranged on the car side sill 33, and the water guiding means shown in FIG. It is also possible to connect the water collecting port 52 of 51 and the gutter of the sill 33 on the car side, and detect water reception by one water droplet detecting means at the water collecting position.

Further, when a camera or a rain light sensor for detecting water droplets is adopted as the water droplet detecting means 50 on the car, as shown in FIG. 7, rain such as a rain cover transparent cover 54 or a gutter is provided with a gradient in front of the car 30. It is also possible to arrange the receivers and mount the car water droplet detecting means 50 behind these rain receivers. The car water droplet detecting means 50 can detect the water cover of the car 30 by detecting the water droplets adhering to the rain receiver from the back side.

The above description is for explaining the present invention, and should not be construed as limiting or limiting the scope of the invention described in the claims. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

For example, the sensor on the car that detects water is preferably a water droplet detecting means, but the sensor under the car or the landing sensor may be a detecting means such as a flooding sensor or a running water sensor.

10 Elevator 20 Shaft 21 Landing 30 Car 32 Top plate 40 Elevator control device 41 Car control device 42 Electronic equipment 50 Car water droplet detection means 51 Water guide means (gutter)
54 Rain receiver 60 Car sewage drop detection means 70 Landing water drop detection means 80 Flood sensor

Claims (4)

The shaft that connects the landings and
A basket running on the shaft,
It is a water control operation method of an elevator equipped with
When the water cover of the car or the shaft is detected, the car is moved to a position where the floor level of the car is higher than the floor level of the top floor to evacuate.
Elevator water control operation method. When the water cover of the car or the shaft is detected, the car is moved to a position where the floor level of the car is 50 to 100 mm higher than the floor level of the top floor to evacuate.
The water control operation method according to claim 1. The water cover of the car is detected by detecting water droplets adhering to the top plate of the car.
The water control operation method according to claim 1 or 2. The detection of water on the shaft is performed by detecting water droplets on the landing.
The water control operation method according to any one of claims 1 to 3.

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