JP7449501B1 - elevator - Google Patents

Abstract

[Problem] To provide an elevator that can prevent a counterweight from penetrating into water when the inside of a hoistway is flooded. [Solution] The elevator includes a car that runs in the vertical direction, a car rope that is connected to the car, and a counterweight that is connected to the car rope and that descends as the car rises and rises as the car descends. Cars are moved within a travel range that is above the height of the first lower landing, which is the height of the car located at the bottom floor landing, and below the first upper landing height, which is the height of the car located at the top floor landing. a processing unit that causes the car to travel; and a first water level detection unit that detects when the water level in the hoistway reaches a first water height; When the water level is lower than the lower end position of the counterweight when the first water level detection part detects the water level, the processing unit detects the second water level which is the height of the car located at the landing of the second floor from the top The car is run in a running range below the height of the upper landing. [Selection diagram] Figure 5

Description

This application relates to elevators.

Conventionally, for example, an elevator includes a car, a counterweight, a car rope that connects the car and the counterweight, and a water level detection section that detects the water level in the hoistway (for example, Patent Document 1 ). Then, when the water level detection section detects the water level, the running range of the car is changed to only the floors above. While this can prevent the cage from entering the water, there is a risk that the counterweight may enter the water.

Japanese Patent Application Publication No. 2022-141341

Therefore, the problem is to provide an elevator that can prevent the counterweight from entering the water when the inside of the hoistway is flooded.

The elevator is
A basket that runs vertically,
a car rope connected to the car;
a counterweight connected to the car rope, which descends as the car rises and rises as the car descends;
In a running range that is above a first lower landing height, which is the height of the car located at the bottom floor landing, and below a first upper landing height, which is the height of the car located at the top floor landing, a processing unit that causes the car to run;
a first water level detection unit that detects that the water level in the hoistway reaches a first water height;
the first water height is lower than the lower end position of the counterweight when the car is located at the first upper landing height;
When the first water level detection unit detects the water level, the processing unit is configured to control the car in a running range below a second upper landing height, which is a height of the car located at a landing on the second floor from the top. run.

Schematic diagram of an elevator according to an embodiment A schematic diagram of the upper side of the elevator according to the embodiment A schematic diagram of the lower side of the elevator according to the embodiment Control block diagram of the elevator according to the embodiment Control flow diagram of the elevator according to the embodiment

In each drawing, the dimensions of components may be shown enlarged or reduced relative to their actual dimensions, for example, for ease of understanding, and the dimensional ratios between drawings may not match. There may be cases where it is not. Note that in each drawing, for example, some of the constituent elements may be omitted for easy understanding.

Although ordinal terms such as first, second, etc. are used to describe a variety of components, these terms are used only to distinguish one component from another; is not particularly limited by this term. Note that the number of components including ordinal numbers is not particularly limited, and may be one, for example. Further, the ordinal numbers used in the following specification and drawings may differ from the ordinal numbers described in the claims.

Hereinafter, one embodiment of an elevator will be described with reference to FIGS. 1 to 5. Note that the following embodiments are provided as examples to help understand the structure of the elevator, and do not limit the structure of the elevator.

As shown in FIG. 1, the elevator 1 includes, for example, a car 2 for people (passengers) to ride, a car rope 3 connected to the car 2, a counterweight 4 connected to the car rope 3, and a car 2. A hoist 5 that drives the rope 3 to make the car 2 and the counterweight 4 travel in the vertical direction D3, a car rail 6 that guides the car 2, a weight rail 7 that guides the counterweight 4, and an elevator 1. The processing section 8 may include a control panel 8a for controlling each section of the processing section 8.

Thereby, the processing unit 8 controls the hoist 5, so that the car 2 and the counterweight 4 travel in the vertical direction D3. Specifically, when the car 2 moves up, the counterweight 4 descends, when the car 2 descends, the counterweight 4 rises, and when the car 2 stops, the counterweight 4 moves down. 4 stops.

For example, as in the present embodiment, the hoisting machine 5 includes a sheave 5a around which the car rope 3 is wound, a drive source 5b (for example, a motor) that rotates the sheave 5a, and a brake that brakes the sheave 5a. 5c (for example, a brake). Although the elevator 1 according to the present embodiment has a configuration in which the hoist 5 is disposed inside the hoistway X1, it is not limited to such a configuration. For example, the hoisting machine 5 may be arranged inside a machine room provided in the upper part of the hoistway X1.

Further, in this embodiment, both ends of the car rope 3 are fixed to the upper or lower part of the hoistway X1, and the car rope 3 is wound around the sheave of the car 2 and the sheave of the counterweight 4, so that The configuration is such that the car rope 3 is connected to the car 2 and the counterweight 4, respectively, but the configuration is not limited to this. For example, the first end of the car rope 3 may be fixed to the car 2, and the second end of the car rope 3 may be fixed to the counterweight 4.

Further, the elevator 1 may include, for example, a moving cable 9 that electrically connects the car 2 and the control panel 8a, and a support section 10 that supports the moving cable 9, as in the present embodiment. Note that the support portion 10 may be fixed to the car rail 6 as in the present embodiment, or may be fixed to the weight rail 7, or may be fixed to the hoistway X1, for example. It may be fixed. That is, the support portion 10 only needs to be fixed to the hoistway X1.

For example, as in the present embodiment, the moving cable 9 has a fixed part 9a that is a part between the part supported by the support part 10 and the control panel 8a, and a part supported by the support part 10 and the car 2. It may also include a moving part 9b which is a part between. As a result, the moving part 9b moves as the car 2 moves up and down. Note that, for example, as in this embodiment, the lower end position of the moving cable 9 may be located below the lower end position of the car 2.

As shown in FIGS. 2 and 3, for example, a plurality of landings X2 to X7 are provided. Note that the number of halls X2 to X7 is not particularly limited. In addition, in FIG. 2, the first upper landing X2 is the landing X2 on the top floor, the second upper landing X3 is the landing X3 on the second floor from the top, and the first upper landing X4 is the landing X4 on the third floor from the top. Three upper landings X4 are illustrated, and in FIG. 3, the first lower landing X5 is the landing X5 on the lowest floor, the second lower landing X6 is the landing X6 on the second floor from the bottom, and A third lower landing X7, which is a landing X7 on the third floor, is illustrated.

For example, as in the present embodiment, the elevator 1 includes a landing door 11 that opens and closes an entrance that communicates the hoistway X1 with the landings X2 to X7, and a landing operation panel 12 that is operated to operate the car 2. You may be prepared. Although not shown, the landing operation panel 12 includes, for example, an ascending call input section into which an instruction to call up the car 2 to ascend is input, and a descending call input section into which an instruction to call to the descending car 2 is input. It's okay.

The elevator 1 may include, for example, a car operation panel 13 inside the car 2 that is operated to operate the car 2, as in the present embodiment. Although not shown, the car operation panel 13 includes a destination input section where an instruction for the destination of the car 2 is input, a door opening input section where an instruction to open the door of the car 2 and the landing door 11 is input, and a door opening input section where an instruction to open the door of the car 2 and the landing door 11 is input. and a door closing input section into which an instruction to close the door and the landing door 11 is input.

Further, the elevator 1 is fixed to the car 2 and a plurality of detected parts 14 arranged at each of the halls X2 to X7, and the car 2 is located at each of the halls X2 to X7, for example. The vehicle may also include a hall detection section 15 that detects the detected section 14 when the detection target section 14 is detected. Thereby, when the car 2 is located at (stops or passes through) each of the landings X2 to X7, the landing detecting section 15 detects the detected section 14.

Although not particularly limited, for example, the hall detection section 15 is a photoelectric sensor in which a light projecting section and a light receiving section are separate parts, and the detected section 14 is a light shielding plate that blocks light between the light projecting section and the light receiving section. , it may be configured as follows. Further, for example, the hall detection section 15 is a photoelectric sensor in which a light projecting section and a light receiving section are integrated into one part, and the detected section 14 is a reflecting plate that reflects light from the light projecting section toward the light receiving section. It may be configured such that there is. Further, for example, the hall detection section 15 may be a contact sensor, and the detected section 14 may be a protrusion that is contacted by the contact sensor.

Thereby, when the hall detection section 15 detects each detected section 14, the hall detection section 15 outputs the same signal to the processing section 8. That is, while the landing detection unit 15 detects that the car 2 is located in the landing halls X2 to X7, the landing detection unit 15 does not identify and detect that the car 2 is located in the landing halls X2 to X7 on any floor. do not have.

Note that the detected portion 14 may be fixed to the car rail 6 as in the present embodiment, or may be fixed to the weight rail 7, for example, or may be fixed to the hoistway X1. may be fixed. That is, the detected portion 14 only needs to be fixed to the hoistway X1.

Furthermore, the elevator 1 may include a plurality of car detection units 21 to 26 that detect that the car 2 is located at a predetermined height, for example, as in the present embodiment. Note that the number of car detection units 21 to 26 is not particularly limited, but is set to six in this embodiment, for example. Each of the first to sixth car detection units 21 to 26 detects that the car 2 is located at the first to sixth car heights.

In this embodiment, the first car height is lower than the first lower landing height, the second car height is a height between the first lower landing height and the second lower landing height, and the second car height is lower than the first lower landing height. The third car height is the height between the second lower landing height and the third lower landing height. The height of the first lower landing is the height of the car 2 when it is located (landing) at the first lower landing X5, and the height of the second lower landing is the height of the car 2 when it is located (landing) at the second lower landing X6. ), and the third lower landing height is the height of the car 2 when it is positioned (landed) at the third lower landing X7.

Further, in the present embodiment, the fourth car height is the height between the first upper landing height and the second upper landing height, and the fifth car height is the height between the second upper landing height and the third upper landing height. The sixth car height is higher than the first upper landing height. The first upper landing height is the height of the car 2 when it is located (landing) at the first upper landing X2, and the second upper landing height is the height when the car 2 is located (landing) at the second upper landing X3. ), and the third upper landing height is the height of the car 2 when it is positioned (landed) at the third upper landing X4.

Note that the configuration of the car detection units 21 to 26 is not particularly limited as long as the position of the car 2 can be detected. The car detection units 21 to 26 may be, for example, contact type sensors, or may be, for example, non-contact type photoelectric sensors. Further, for example, the car detection units 21 to 26 may output the presence or absence of detection of the car 2 to the processing unit 8 as an electrical signal.

Further, the car detection units 21 to 26 may be fixed to the car rail 6 as in the present embodiment, or may be fixed to the weight rail 7, for example, It may be fixed to the road X1. That is, the car detection units 21 to 26 only need to be fixed with respect to the hoistway X1.

Further, the elevator 1 may include a plurality of water level detection units 31 to 33 that detect when the water level in the hoistway X1 reaches a predetermined height, for example, as in the present embodiment. Note that the number of water level detection units 31 to 33 is not particularly limited, but is set to three in this embodiment, for example. Each of the first to third water level detection units 31 to 33 detects that the water level in the hoistway X1 reaches the first to third water levels.

In this embodiment, the first water height is lower than the lower end position of the counterweight 4 when the car 2 is located at the first upper landing height, and the second water height is lower than the lower end position of the counterweight 4 when the car 2 is located at the first upper landing height. The third water height is lower than the lower end position of the moving cable 9 when located at the first lower landing height, and the third water height is higher than the first water height and the second water height, and the first car detection unit 21 lower than the position of For example, the first water height may be higher than the second water height, as in this embodiment. Further, for example, the third water height may be lower than the lower end position of the car 2 when the car 2 is located at the first lower landing height.

Note that the configurations of the water level detection units 31 to 33 are not particularly limited as long as they can detect the water level in the hoistway X1. The water level detection units 31 to 33 may be, for example, a float type sensor, or may be, for example, an electrode rod type sensor.

Further, the water level detection units 31 to 33 may be fixed to the weight rail 7 as in the present embodiment, or may be fixed to the car rail 6, for example, It may be fixed to the road X1. That is, the water level detection units 31 to 33 only need to be fixed with respect to the hoistway X1.

As shown in FIG. 4, the elevator 1 may include, for example, a travel detection unit 16 that detects the travel distance of the car 2. The configuration of the traveling detection section 16 is not particularly limited as long as it can detect the traveling distance of the car 2. The travel detection unit 16 may be, for example, an encoder that detects the amount of rotation of the sheave 5a.

The processing unit 8 includes, for example, an acquisition unit 8b that acquires each piece of information from each unit 12, 13, 15, 16, 21 to 26, and 31 to 33, a storage unit 8c that stores each piece of information, and an arithmetic unit that calculates each piece of information. 8d and a control section 8e that controls each section 5. For example, the processing unit 8 may control the running of the car 2 by controlling the hoist 5.

Note that the processing unit 8 includes, for example, processors such as a CPU and MPU (for example, a calculation unit 8d and a control unit 8e), memories such as ROM and RAM (for example, an acquisition unit 8b and a storage unit 8c), and various interfaces (for example, The computer may be equipped with an acquisition unit 8b) or the like. As a result, the processor executes the program stored in the memory, and the software and hardware cooperate to realize each section 8b to 8e of the processing section 8.

Further, the processing unit 8 may be configured by, for example, one device 8a, or may be configured by, for example, a plurality of devices 8a that can communicate with each other. Specifically, each section 8b to 8e of the processing section 8 may be provided in one device 8a, or may be provided in a distributed manner in a plurality of devices 8a that can communicate with each other, for example. good.

The configuration of the elevator 1 according to the present embodiment is as described above, and next, the control of the elevator 1 according to the present embodiment will be explained with reference to FIG. 5. Note that the following explanation is provided as an example to help understand the control of the elevator 1, and does not limit the control of the elevator 1.

As shown in FIG. 5, when each of the water level detection units 31 to 33 does not detect the water level, that is, in a normal case where water does not flow into the hoistway X1, the processing unit 8 performs normal running control. (S1 in FIG. 5). The travel range of the car 2 during normal travel control is above the first lower landing height and below the first upper landing height.

If the second water level detection unit 32 detects the water level due to water flowing into the hoistway X1 (“Y” in S2 of FIG. 5), the processing unit 8 executes the lower limit travel control. (S3 in FIG. 5). As a result, the running range of the car 2 is changed. Specifically, the travel range of the car 2 during the lower limit travel control is equal to or higher than the second lower landing height.

Thereby, the moving cable 9 can be prevented from entering the water. Therefore, for example, it is possible to prevent water from dripping from the moving cable 9 and being sprinkled into the hoistway X1. Furthermore, it is also possible to prevent the car 2 from entering the water. Therefore, for example, it is possible to maintain the safe running of the car 2, and it is also possible to suppress water from dripping from the car 2 into the hoistway X1.

After that, when the water level in the hoistway X1 decreases and the second water level detection unit 32 no longer detects the water level (“N” in S6 in FIG. 5), the processing unit 8 cancels the lower limit travel control. (S7 in FIG. 5), automatic recovery is performed. Note that the control is not limited to such control, and even if the second water level detection section 32 no longer detects the water level, for example, the processing section 8 will continue to control the lowering until a recovery signal is input from the input section (for example, a reset button). Limited travel control may be maintained.

Furthermore, if the first water level detection unit 31 detects the water level due to further water flowing into the hoistway Execute (S5 in FIG. 5). As a result, the running range of the car 2 is changed. Specifically, the travel range of the car 2 during the upper limit travel control is below the second upper landing height.

This can prevent the counterweight 4 from entering the water. Therefore, for example, it is possible to maintain the safe running of the car 2, and it is also possible to prevent water from dripping from the counterweight 4 into the hoistway X1. do.

After that, when the water level in the hoistway X1 decreases and the first water level detection unit 31 no longer detects the water level (“N” in S11 of FIG. 5), the processing unit 8 cancels the upper limit travel control. (S12 in FIG. 5), automatic recovery is performed. Note that the control is not limited to such control, and even if the first water level detection section 31 no longer detects the water level, for example, the processing section 8 will continue to control the water level until a recovery signal is input from the input section (for example, a reset button). Limited travel control may be maintained.

Furthermore, if the third water level detection unit 33 detects the water level due to water further flowing into the hoistway X1 (“Y” in S8 in FIG. 5), the processing unit 8, for example, The car 2 is stopped at the nearest landings X2 to X7 (S9 in FIG. 5), and then the running of the car 2 is stopped (S10 in FIG. 5). Note that "stop" means, for example, that the running car 2 stops, and "pause" means, for example, that the car 2 stops and then information is input to the hall operation panel 12 and the car operation panel 13. This means that car 2 will not run even if the car is moved.

Thereby, it is possible to prevent the counterweight 4, the moving cable 9, and the car 2 from entering the water. In addition, since the third water height is lower than the position of the first car detection unit 21 when the first car detection unit 21 outputs an electric signal to the processing unit 8, in case the first car detection unit 21 If the car is submerged in water, the car 2 is prevented from running.

Thereafter, even if the water level in the hoistway X1 decreases and the third water level detection section 33 no longer detects the water level, the processing section 8 will continue to The suspension of running of car 2 is maintained. Note that the control is not limited to such control, and when the third water level detection section 33 no longer detects the water level, the processing section 8 may, for example, cancel the suspension of running of the car 2 and automatically restore it.

Next, controls other than the above-mentioned normal travel control, lower limit travel control, and upper limit travel control will be described below.

<Normal driving control>
First, the normal driving control other than the above will be explained below.

<Cage travel control of normal travel control>
The processing unit 8 may calculate the target position of the car 2 (the landing height at which the car 2 lands) based on the information input to the hall operation panel 12 and the car operation panel 13, for example. Further, the processing unit 8 may calculate the position of the car 2 based on the detection by the landing detection unit 15 and the travel detection unit 16, for example, and the processing unit 8 may control the hoisting machine 5. The car 2 may be driven to the target position and then stopped.

For example, the processing unit 8 may be configured to calculate the current floor position of the car 2 based on the detection by the landing detection unit 15. Note that a floor refers to a range between a predetermined landing height and a landing height adjacent to the landing height.

For example, the processing unit 8 may calculate that the car 2 is located at the next higher floor when the landing detection unit 15 detects the detected part 14 when the car 2 is ascending. As an example, when the position of the car 2 calculated by the processing unit 8 (hereinafter referred to as "calculated car position") is the first lower floor (the floor from the first lower landing height to the second lower landing height), When the car 2 rises, the landing detecting unit 15 detects the detected part 14, so that the calculated car position is set to the second lower floor (from the second lower hall height to the third lower hall height). .

Further, the processing unit 8 may calculate that the car 2 is located at the next floor below, for example, when the landing detection unit 15 detects the detected portion 14 when the car 2 is lowered. As an example, when the calculated car position is the first upper floor (from the first upper hall height to the second upper hall height), the hall detection unit 15 detects the detected part 14 when the car 2 is lowered. By detecting the calculated car position, the calculated car position is set to the second upper floor (the floor from the second upper hall height to the third upper hall height).

For example, the processing unit 8 may be configured to calculate the current position of the car 2 by calculating the travel distance of the car 2 from a specific landing height based on the detection by the travel detection unit 16. Note that, for example, the specific landing height may be the landing height immediately before the target position (landing height at which the car 2 lands).

Since the processing unit 8 stores, for example, the distance between each landing height, when the calculated car position becomes the set position, the processing unit 8 decelerates the car 2, and then the landing detection unit 15 decelerates the car 2. By detecting the detected part 14, the processing part 8 stops the car 2. Thereby, the car 2 stops at the target position.

<Car lowering safety control during normal running control>
By the way, in the above car travel control, if the calculated car position is incorrect, there is a possibility that the car 2 will move below the first lower landing height. For example, if car 2 is located at the lowest floor (the first lower floor between the first lower landing height and the second lower landing height) and the calculated floor is incorrect, if car 2 is located at the lowest floor There is a possibility that it will move below the level (first lower landing height).

Therefore, since the second car height is between the first lower landing height and the second lower landing height, for example, when the second car detection unit 22 detects the car 2, the processing unit 8 , the hierarchy of the calculation car position may be reset to the hierarchy of the second car height (lowest hierarchy). With this, when car 2 is located at the second car height of the lowest floor, if the hierarchy at the calculation car position is different from the lowest hierarchy, the hierarchy at the calculation car position can be reset to the appropriate hierarchy. .

Further, since the second car height is between the first lower landing height and the second lower landing height, for example, when the second car detection unit 22 detects the car 2, the second car height is the height between the first lower landing height and the second lower landing height. The processing unit 8 may be configured to reduce the speed of the car 2 by controlling the drive source 5b when the descending speed is equal to or higher than the set speed. Thereby, the speed of the car 2 can be appropriately reduced, so that, for example, it is possible to suppress the car 2 from moving below the first lower landing height.

Further, since the first car height is lower than the first lower landing height, for example, when the first car detection unit 21 detects the car 2, the processing unit 8 not only controls the drive source 5b but also controls the drive source 5b. A configuration may be adopted in which the car 2 is stopped by also operating (controlling) the braking unit 5c. Thereby, for example, it is possible to suppress the car 2 below the first lower landing height from moving further downward.

Note that since the first car detection section 21 outputs an electrical signal to the processing section 8, there is a possibility that the control cannot be executed if the first car detection section 21 is submerged in water. On the other hand, when the third water level detection unit 33 detects the water level (“Y” in S8 in FIG. 5), the running of the car 2 is stopped (S10 in FIG. 5). The running of car 2 was stopped before the car was flooded.

<Car lift safety control during normal running control>
Furthermore, in the above-mentioned car travel control, if the calculated car position is incorrect, there is a possibility that the car 2 will move above the first upper hall height. For example, if car 2 is located on the top floor (the first upper floor between the first upper landing height and the second upper landing height) and the calculated floor is incorrect, car 2 is located on the top floor (the first upper floor between the first upper landing height and the second upper landing height). There is a possibility that the vehicle may move upward from the first lower landing height.

Therefore, since the fourth car height is between the first upper landing height and the second upper landing height, for example, when the fourth car detection unit 24 detects the car 2, the processing unit 8 , the hierarchy of the calculation car position may be reset to the hierarchy of the fourth car height (the highest hierarchy). Thereby, when the car 2 is located at the fourth car height of the highest hierarchy and the hierarchy at the calculation car position is different from the top hierarchy, the hierarchy at the calculation car position can be reset to an appropriate hierarchy.

Further, since the fourth car height is between the first upper landing height and the second upper landing height, for example, when the fourth car detection unit 24 detects the car 2, the fourth car height is the height between the first upper landing height and the second upper landing height. The processing unit 8 may be configured to reduce the speed of the car 2 by controlling the drive source 5b when the rising speed is equal to or higher than the set speed. Thereby, the speed of the car 2 can be appropriately reduced, so that, for example, it is possible to suppress the car 2 from moving above the first upper landing height.

Furthermore, since the sixth car height is higher than the first upper landing height, for example, when the sixth car detection unit 26 detects the car 2, the processing unit 8 not only controls the drive source 5b but also controls the drive source 5b. A configuration may be adopted in which the car 2 is stopped by also operating (controlling) the braking unit 5c. Thereby, for example, it is possible to suppress the car 2 above the first upper landing height from moving further upward.

<Car lowering safety control with lower limit travel control>
Next, the car lowering safety control of the lower limit traveling control will be explained below. Specifically, since the travel range of car 2 during lower limit travel control is equal to or higher than the second lower landing height, the car lowering safety control during lower limit travel control is replaced by the car lowering safety control during normal travel. However, the following changes are made.

The lowest floor during the lower limit travel control is the second lower floor between the second lower hall height and the third lower hall height. Therefore, since the third car height is between the second lower landing height and the third lower landing height, for example, the third car detection unit 23 detects the car 2 during the lower limit traveling control. Accordingly, the processing unit 8 may be configured to reset the hierarchy of the calculation car position to the second lower hierarchy.

As a result, when car 2 is located at the third car height higher than the second lower landing height and the hierarchy of the calculation car position is different from the lowest floor, the hierarchy of the calculation car position is set to the appropriate hierarchy. be able to. Therefore, even during lower limit traveling control, the hierarchy of the calculated car position can be reset to the lowest hierarchy. In this way, regardless of whether or not the second water level detection unit 32 detects the water level at the second water height, the hierarchy of the calculated car position can be reset to the lowest hierarchy.

Further, since the third car height is between the second lower landing height and the third lower landing height, for example, the third car detection unit 23 detects the car 2 during lower limit traveling control. At this time, if the descending speed of the car 2 is equal to or higher than the set speed, the processing section 8 may be configured to reduce the speed of the car 2 by controlling the drive source 5b. Thereby, the speed of the car 2 can be appropriately reduced, so that, for example, during lower limit travel control, it is possible to suppress the car 2 from moving below the second lower landing height.

Further, since the second car height is lower than the second lower landing height, for example, when the second car detection unit 22 detects the car 2 during lower limit travel control, the processing unit 8 detects the drive source The car 2 may be stopped by not only controlling the brake part 5b but also operating (controlling) the brake part 5c. Thereby, for example, during the lower limit travel control, it is possible to suppress the car 2 below the second lower landing height from moving further downward.

<Car lift safety control with upper limit travel control>
Next, the car lift safety control of the upper limit travel control will be described below. Specifically, since the travel range of car 2 during the upper limit travel control is below the second upper landing height, the car lift safety control during the upper limit travel control is replaced by the car raise safety control during normal travel. However, the following changes are made.

The highest floor during the upper limit travel control is the second upper floor between the second upper hall height and the third upper hall height. Therefore, during the upper limit travel control, for example, when the fifth car detection section 25 detects the car 2, the processing section 8 may be configured to reset the hierarchy of the calculated car position to the second upper hierarchy.

As a result, when the car 2 is located at the fifth car height lower than the second upper landing height and the hierarchy of the calculation car position is different from the highest hierarchy, the hierarchy of the calculation car position can be set to the appropriate hierarchy. Can be done. Therefore, even during upper limit traveling control, the hierarchy of the calculated car position can be reset to the highest hierarchy. In this way, regardless of whether or not the first water level detection unit 31 detects the water level at the first water height, the hierarchy of the calculated car position can be reset to the highest hierarchy.

Furthermore, since the fifth car height is between the second upper landing height and the third upper landing height, for example, during upper limit travel control, the fifth car detection unit 25 detects the car 2. The processing unit 8 may be configured to reduce the speed of the car 2 by controlling the drive source 5b if the rising speed of the car 2 is equal to or higher than the set speed. Thereby, the speed of the car 2 can be appropriately reduced, so that, for example, during upper limit travel control, it is possible to suppress the car 2 from moving above the second upper hall height.

Further, since the fourth car height is higher than the second upper landing height, for example, when the fourth car detection unit 24 detects the car 2 during upper limit travel control, the processing unit 8 detects the drive source The car 2 may be stopped by not only controlling the brake part 5b but also operating (controlling) the brake part 5c. Thereby, for example, during upper limit travel control, it is possible to suppress the car 2 above the second upper landing height from moving further upward.

[1]
From the above, the elevator 1, like this embodiment,
A car 2 running in the vertical direction D3,
a car rope 3 connected to the car 2;
a counterweight 4 connected to the car rope 3, which descends as the car 2 rises and rises as the car 2 descends;
The height of the car 2 located at the lowest floor landing X5 is greater than or equal to the first lower landing height, and the height of the car 2 located at the top floor landing X2 is lower than the first upper landing height. a processing unit 8 that causes the car 2 to run in a running range;
A first water level detection unit 31 that detects that the water level in the hoistway X1 reaches a first water height,
the first water height is lower than the lower end position of the counterweight 4 when the car 2 is located at the first upper landing height;
When the first water level detection unit 31 detects the water level, the processing unit 8 determines whether the car runs below a second upper landing height, which is the height of the car 2 located at the landing X3 on the second floor from the top. running the car 2 within a range;
This configuration is preferable.

According to this configuration, when the first water height is lower than the lower end position of the counterweight 4 when the car 2 is located at the first upper landing height, the first water level detection unit 31 When the car 2 detects a water level at the first water height, the car 2 runs in a running range below the second upper landing height. Thereby, when the inside of the hoistway X1 is flooded, it is possible to prevent the counterweight 4 from penetrating into the water.

[2]
Moreover, in the elevator 1 of the above [1], like this embodiment,
The processing unit 8 includes a control panel 8a,
The elevator 1 is
a moving cable 9 connecting the car 2 and the control panel 8a;
Further comprising a second water level detection unit 32 that detects that the water level in the hoistway X1 reaches a second water height,
the second water height is lower than the lower end position of the moving cable 9 when the car 2 is located at the first lower landing height;
When the second water level detection unit 32 detects the water level, the processing unit 8 causes the car to run at a height equal to or higher than a second lower landing height, which is the height of the car 2 located at the landing X6 on the second floor from the bottom. running the car 2 within a range;
This configuration is preferable.

According to such a configuration, when the second water height is lower than the lower end position of the movable cable 9 when the car 2 is located at the first lower landing height, the second water level detection unit 32 When the water level of the second water height is detected, the car 2 travels in a travel range that is equal to or higher than the second lower landing height. Thereby, when the inside of the hoistway X1 is flooded, it is possible to prevent the moving cable 9 from penetrating into the water.

[3]
Moreover, the elevator 1 of [2] above, like this embodiment,
Further comprising a third water level detection unit 33 that detects that the water level in the hoistway X1 reaches a third water height,
The third water height is higher than the first water height and the second water height,
The processing unit 8 stops and pauses the running of the car 2 when the third water level detection unit 33 detects the water level.
This configuration is preferable.

According to such a configuration, when the third water height is higher than the first water height and the second water height, when the third water level detection unit 33 detects the water level of the third water height. Then, the running of car 2 is stopped and paused. Thereby, it is possible to prevent the counterweight 4, the moving cable 9, and the car 2 from entering the water.

[4]
Moreover, the elevator 1 of the above [3], like this embodiment,
The car further includes a first car detection unit 21 that is fixed to the hoistway X1 and detects that the car 2 is located at a first car height,
the first car height is lower than the first lower landing height;
The processing unit 8 stops the car 2 when the first car detection unit 21 detects the car 2,
The first car detection unit 21 outputs the presence or absence of detection of the car 2 to the processing unit 8 as an electric signal,
the third water height is lower than the position of the first car detection unit 21;
This configuration is preferable.

According to such a configuration, when the first car detection unit 21 detects the car 2 at the first car height when the first car height is lower than the first lower landing height, the first car height is lower than the first lower landing height. stops. This can prevent the car 2 from moving too far below the first lower landing height.

By the way, since the first car detection section 21 outputs an electric signal to the processing section 8 to indicate whether or not the car 2 is detected, there is a possibility that the prevention cannot be carried out if the first car detection section 21 is submerged in water. There is. Therefore, when the third water level detecting section 33 detects the water level at the third water height while the third water height is lower than the position of the first car detecting section 21, the running of the car 2 is as follows. stopped and paused. As a result, the running of the car 2 is stopped and paused before the first car detection unit 21 is submerged in water.

[5]
Further, the elevator 1 according to any one of [2] to [4] above, as in this embodiment,
a plurality of detected parts 14 fixed to the hoistway X1 and arranged at each of the landings X2 to X7;
a landing detection unit 15 that is fixed to the car 2 and detects the detected portion 14 when the car 2 is located at each landing hall X2 to X7;
a second car detection unit 22 that is fixed to the hoistway X1 and detects that the car 2 is located at a second car height;
further comprising a third car detection unit 23 fixed to the hoistway X1 and detecting that the car 2 is located at a third car height,
The second car height is a position between the first lower landing height and the second lower landing height,
The third car height is a position between the second lower landing height and the third lower landing height which is the height of the car 2 located at landing X7 on the third floor from the bottom,
The processing unit 8 calculates the hierarchical position of the car 2 based on the detection by the landing detection unit 15,
The processing unit 8 resets the calculated hierarchy position of the car 2 to the hierarchy of the second car height when the second car detection unit 22 detects the car 2,
When the second water level detection unit 32 detects the water level, the third car detection unit 23 detects the car 2, so that the processing unit 8 calculates the hierarchical position of the car 2 to the third car. Reset to car height hierarchy,
This configuration is preferable.

According to such a configuration, when the car 2 is located at each of the halls X2 to X7, the hall detection unit 15 detects the detected part 14, so the processing unit 8, based on the detection by the hall detection unit 15, Calculate the hierarchy position of car 2. By the way, if the calculated floor is incorrect when car 2 is located at the lowest floor (the first lower floor between the first lower landing height and the second lower landing height), There is a risk of moving down the hierarchy.

Therefore, when the second car height is between the first lower landing height and the second lower landing height, the second car detection unit 22 detects the car 2 at the second car height. As a result, the processing unit 8 resets the calculated hierarchy position of the car 2 to the hierarchy of the second car height (lowest hierarchy). With this, when car 2 is located at the second car height of the lowest floor, if the calculated hierarchy of the car position is different from the lowest hierarchy, the calculated hierarchy of the car position can be reset to the appropriate hierarchy. Can be done.

By the way, when the second water level detection unit 32 detects the water level at the second water height, the car 2 travels in a travel range equal to or higher than the second lower landing height. Therefore, when the third car height is between the second lower landing height and the third lower landing height, and the second water level detection unit 32 detects the water level at the second water height, When the third car detection unit 23 detects the car 2, the processing unit 8 resets the calculated hierarchy position of the car 2 to the hierarchy of the third car height.

As a result, even when the second water level detection unit 32 detects the water level at the second water height and the car 2 travels in a travel range equal to or higher than the second lower landing height, the floor position of the car 2 to be calculated is set to the lowest floor position. level (second lower level between the second lower level and the third lower level). Therefore, regardless of whether or not the second water level detecting section 32 detects the water level at the second water height, the calculated hierarchy position of the car 2 can be reset to the lowest hierarchy.

[6]
Further, the elevator 1 according to any one of [1] to [5] above, as in this embodiment,
a plurality of detected parts 14 fixed to the hoistway X1 and arranged at each of the landings X2 to X7;
a landing detection unit 15 that is fixed to the car 2 and detects the detected portion 14 when the car 2 is located at each of the landing areas X2 to X7;
a fourth car detection unit 24 that is fixed to the hoistway X1 and detects that the car 2 is located at a fourth car height;
further comprising a fifth car detection unit 25 that is fixed to the hoistway X1 and detects that the car 2 is located at a fifth car height;
The fourth car height is a position between the first upper landing height and the second upper landing height,
The fifth car height is a position between the second upper landing height and the third upper landing height, which is the height of the car 2 located at the landing X4 on the third floor from the top,
The processing unit 8 calculates the hierarchical position of the car 2 based on the detection by the landing detection unit 15,
The processing unit 8 resets the calculated hierarchy position of the car 2 to the hierarchy of the fourth car height when the fourth car detection unit 24 detects the car 2,
When the first water level detection unit 31 detects the water level, the processing unit 8 causes the fifth car detection unit 25 to detect the car 2, so that the hierarchical position of the car 2 to be calculated is determined by the fifth car. Reset to car height hierarchy,
This configuration is preferable.

According to such a configuration, when the car 2 is located at each of the halls X2 to X7, the hall detection unit 15 detects the detected part 14, so the processing unit 8, based on the detection by the hall detection unit 15, Calculate the hierarchy position of car 2. By the way, if car 2 is located on the top floor (the first upper floor between the first upper landing height and the second upper landing height) and the calculated floor is incorrect, car 2 may be lower than the top floor. There is also a risk that it will move upward.

Therefore, when the fourth car height is between the first upper landing height and the second upper landing height, the fourth car detection unit 24 detects the car 2 at the fourth car height. As a result, the processing unit 8 resets the calculated hierarchical position of the car 2 to the hierarchical level of the fourth car height (the highest hierarchical level). With this, when car 2 is located at the fourth car height of the top floor, if the calculated hierarchy of the car position is different from the top hierarchy, the calculated hierarchy of the car position can be reset to the appropriate hierarchy. .

By the way, when the first water level detection unit 31 detects the water level at the first water height, the car 2 runs in a running range below the second upper landing height. Therefore, when the fifth car height is between the second upper landing height and the third upper landing height, and the first water level detection unit 31 detects the water level at the first water height, When the fifth car detection unit 25 detects the car 2, the processing unit 8 resets the calculated hierarchy position of the car 2 to the hierarchy of the fifth car height.

As a result, even when the first water level detection unit 31 detects the water level at the first water height and the car 2 runs in a travel range below the second upper landing height, the hierarchical position of the car 2 to be calculated is set to the highest floor. (the second upper level between the second upper hall height and the third upper hall height). Therefore, regardless of whether or not the first water level detection unit 31 detects the water level at the first water height, the calculated hierarchical position of the car 2 can be reset to the highest hierarchical level.

Note that the elevator 1 is not limited to the configuration of the embodiment described above, nor is it limited to the effects described above. Moreover, it goes without saying that the elevator 1 may be modified in various ways without departing from the gist of the present invention. For example, it goes without saying that one or more of the configurations, methods, etc. according to the various modification examples described below may be arbitrarily selected and adopted as the configurations, methods, etc. according to the above-described embodiments.

(A) In the elevator 1 according to the above embodiment, the first water level detection section 31 is separate from the second water level detection section 32, and the first water height is higher than the second water height. It is the composition. However, the elevator 1 is not limited to such a configuration.

For example, the first water height may be lower than the second water height. Further, for example, the first water height may be the same as the second water height, and in such a structure, the first water level detection section 31 and the second water level detection section 32 may be, for example, common. The configuration may be one detection section, or, for example, a separate detection section.

In a configuration in which the first water level detection section 31 and the second water level detection section 32 are one common detection section, for example, when the one common detection section detects the water level, the processing section 8 , the car 2 is caused to travel within a travel range that is below the second upper landing height and above the second lower landing height.

(B) Furthermore, in the elevator 1 according to the above embodiment, the second water height is lower than the lower end position of the moving cable 9 when the car 2 is located at the first lower landing height. be. However, the elevator 1 is not limited to such a configuration. For example, the second water height may be higher than the lower end position of the moving cable 9 and lower than the lower end position of the car 2 when the car 2 is located at the first lower landing height.

(C) Furthermore, the elevator 1 according to the above embodiment is configured to include first to third water level detection sections 31 to 33. However, the elevator 1 is not limited to such a configuration. For example, the elevator 1 may be configured to include only the first water level detector 31 and not include the second and third water level detectors 32 and 33. Furthermore, for example, the elevator 1 may be configured to include first and second water level detectors 31 and 32, but not include the third water level detector 33. Furthermore, for example, the elevator 1 may be configured to include the first and third water level detectors 31 and 33 and not include the second water level detector 32.

(D) Furthermore, in the elevator 1 according to the embodiment described above, the third water height is lower than the position of the first car detection unit 21. However, the elevator 1 is not limited to such a configuration. For example, the third water height may be the same as the position of the first car detection unit 21. Further, for example, the third water height may be higher than the position of the first car detection unit 21.

(E) Furthermore, in the elevator 1 according to the above embodiment, the normal running control executes the car lowering safety control, and the car lowering safety control of the normal running control is based on the detection of the car 2 by the second car detection unit 22. Control of resetting the hierarchy of calculated car positions (first control), deceleration control of car 2 by detection of car 2 by second car detection unit 22 (second control), and detection of car 2 by first car detection unit 21 The configuration is such that the stop control (third control) of the car 2 is executed according to the following. However, the elevator 1 is not limited to such a configuration.

For example, the normal running control may be configured such that the car lowering safety control is not executed, that is, all of the first to third controls are not executed. Further, for example, the car lowering safety control in the normal running control may be configured to execute only a part of the first to third controls.

(F) Furthermore, in the elevator 1 according to the above embodiment, the lower limit traveling control executes the car lowering safety control, and the lower limit traveling control carries out the car lowering safety control of the car 2 of the third car detection unit 23. Control of resetting the hierarchy of the calculated car position by detection (fourth control), deceleration control of car 2 by detection of car 2 by third car detection section 23 (fifth control), and control of car 2 by detection of car 2 by second car detection section 23. The configuration is such that the stop control (sixth control) of the car 2 is executed based on the detection of the car 2. However, the elevator 1 is not limited to such a configuration.

For example, the lower limit travel control may be configured such that the car lowering safety control is not executed, that is, all of the fourth to sixth controls are not executed. Further, for example, the car lowering safety control of the lower limit running control may be configured to execute only a part of the fourth to sixth controls.

(G) Furthermore, in the elevator 1 according to the above embodiment, the normal running control executes the car rising safety control, and the car rising safety control of the normal running control is based on the detection of the car 2 by the fourth car detection unit 24. Reset control of the calculation car position hierarchy (seventh control), deceleration control of car 2 by detection of car 2 by fourth car detection unit 24 (eighth control), and detection of car 2 by sixth car detection unit 26 The configuration is such that the stop control (ninth control) of the car 2 is executed according to the following. However, the elevator 1 is not limited to such a configuration.

For example, the normal running control may be configured such that the car lift safety control is not executed, that is, all of the seventh to ninth controls are not executed. Further, for example, the car lift safety control in the normal running control may be configured to execute only a part of the seventh to ninth controls.

(H) Furthermore, in the elevator 1 according to the above embodiment, the upper limit travel control executes the car rise safety control, and the car rise safety control of the upper control travel control is performed for the car 2 of the fifth car detection unit 25. Reset control of the calculated car position hierarchy by detection (10th control), deceleration control of car 2 by detection of car 2 by the fifth car detection unit 25 (eleventh control), and car 2 control by the fourth car detection unit 24 The configuration is such that the stop control (12th control) of the car 2 is executed based on the detection of the car 2. However, the elevator 1 is not limited to such a configuration.

For example, the upper limit travel control may be configured such that the car lift safety control is not executed, that is, all of the tenth to twelfth controls are not executed. Further, for example, the car lift safety control of the upper limit traveling control may be configured to execute only a part of the tenth to twelfth controls.

(I) For example, the execution order of each process such as the operation, procedure, step, and stage in the system, method, program, and apparatus shown in the claims, specification, and drawings is the output of the previous process. They can be implemented in any order as long as they are not used in subsequent processing. For example, even if "first", "next", etc. are used in the explanation for convenience, this does not mean that execution in this order is essential.

DESCRIPTION OF SYMBOLS 1... Elevator, 2... Car, 3... Car rope, 4... Counterweight, 5... Winding machine, 5a... Sheave, 5b... Drive source, 5c... Braking part, 6... Car rail, 7... Weight rail, 8... Processing section, 8a... Control panel, 8b... Acquisition section, 8c... Storage section, 8d... Calculating section, 8e... Control section, 9... Moving cable, 9a... Fixed section, 9b... Moving section, 10... Supporting section, DESCRIPTION OF SYMBOLS 11... Landing door, 12... Hall operating panel, 13... Car operating panel, 14... Detected part, 15... Landing detection part, 16... Running detection part, 21... First car detection part, 22... Second car detection part , 23... Third cage detection section, 24... Fourth cage detection section, 25... Fifth cage detection section, 26... Sixth cage detection section, 31... First water level detection section, 32... Second water level detection section, 33 ...Third water level detection section, X1...Hoistway, X2...First upper landing, X3...Second upper landing, X4...Third upper landing, X5...First lower landing, X6...Second lower landing, X7...Third landing 3 lower platform

Claims (5)

A basket that runs vertically,
a car rope connected to the car;
a counterweight connected to the car rope, which descends as the car rises and rises as the car descends;
In a running range that is above a first lower landing height, which is the height of the car located at the bottom floor landing, and below a first upper landing height, which is the height of the car located at the top floor landing, a processing unit that causes the car to run;
a first water level detection unit that detects that the water level in the hoistway reaches a first water height;
the first water height is lower than the lower end position of the counterweight when the car is located at the first upper landing height;
When the first water level detection unit detects the water level, the processing unit is configured to control the car in a running range below a second upper landing height, which is a height of the car located at a landing on the second floor from the top. An elevator that runs a
The elevator further includes a first car detection unit that is fixed to the hoistway and detects that the car is located at a first car height,
The first car detection unit outputs the presence or absence of detection of the car to the processing unit as an electric signal,
the first car height is lower than the first lower landing height;
The processing unit stops the car when the first car detection unit detects the car,
The elevator further includes a second water level detection unit that detects that the water level in the hoistway reaches a second water height,
The second water height is higher than the first water height and lower than the position of the first car detection unit,
In the elevator, the processing section stops and pauses the running of the car when the second water level detection section detects the water level . The processing unit includes a control panel,
The elevator is
a moving cable connecting the car and the control panel;
further comprising a third water level detection unit that detects that the water level in the hoistway reaches a third water height,
the third water height is lower than the lower end position of the moving cable when the car is located at the first lower landing height;
When the third water level detection unit detects the water level, the processing unit is configured to control the car in a running range that is equal to or higher than a second lower landing height, which is a height of the car located at a landing on the second floor from the bottom. The elevator according to claim 1, wherein the elevator runs. The elevator according to claim 2 , wherein the second water height is higher than the third water height. A basket that runs vertically,
a car rope connected to the car;
a counterweight connected to the car rope, which descends as the car rises and rises as the car descends;
In a running range that is above a first lower landing height, which is the height of the car located at the bottom floor landing, and below a first upper landing height, which is the height of the car located at the top floor landing, a processing unit that causes the car to run;
a first water level detection unit that detects that the water level in the hoistway reaches a first water height;
the first water height is lower than the lower end position of the counterweight when the car is located at the first upper landing height;
When the first water level detection unit detects the water level, the processing unit is configured to control the car in a running range below a second upper landing height, which is a height of the car located at a landing on the second floor from the top. An elevator that runs a
The processing unit includes a control panel,
The elevator is
a moving cable connecting the car and the control panel;
further comprising a second water level detection unit that detects that the water level in the hoistway reaches a second water height,
the second water height is lower than the lower end position of the moving cable when the car is located at the first lower landing height;
When the second water level detection unit detects the water level, the processing unit is configured to control the car in a running range that is equal to or higher than a second lower landing height, which is a height of the car located at a landing on the second floor from the bottom. run the
The elevator is
a plurality of detected parts fixed to the hoistway and arranged at each landing;
a landing detection unit that is fixed to the car and detects the detected portion when the car is located at each landing;
a second car detection unit that is fixed to the hoistway and detects that the car is located at a second car height;
further comprising a third car detection unit fixed to the hoistway and detecting that the car is located at a third car height,
The second car height is a position between the first lower landing height and the second lower landing height,
The third car height is a position between the second lower landing height and the third lower landing height, which is the height of the car located at the landing on the third floor from the bottom,
The processing unit calculates the hierarchical position of the car based on the detection by the landing detection unit,
The processing unit resets the calculated hierarchy position of the car to the hierarchy of the second car height when the second car detection unit detects the car,
When the second water level detection unit detects the water level, the third car detection unit detects the car, and the processing unit calculates the calculated hierarchical position of the car by determining the hierarchy position of the third car height. Reset the elevator . A basket that runs vertically,
a car rope connected to the car;
a counterweight connected to the car rope, which descends as the car rises and rises as the car descends;
In a running range that is above a first lower landing height, which is the height of the car located at the bottom floor landing, and below a first upper landing height, which is the height of the car located at the top floor landing, a processing unit that causes the car to run;
a first water level detection unit that detects that the water level in the hoistway reaches a first water height;
the first water height is lower than the lower end position of the counterweight when the car is located at the first upper landing height;
When the first water level detection unit detects the water level, the processing unit is configured to control the car in a running range below a second upper landing height, which is a height of the car located at a landing on the second floor from the top. An elevator that runs a
a plurality of detected parts fixed to the hoistway and arranged at each landing;
a landing detection unit that is fixed to the car and detects the detected portion when the car is located at each landing;
a second car detection unit that is fixed to the hoistway and detects that the car is located at a second car height;
further comprising a third car detection unit fixed to the hoistway and detecting that the car is located at a third car height,
The second car height is a position between the first upper landing height and the second upper landing height,
The third car height is a position between the second upper landing height and the third upper landing height, which is the height of the car located at the landing of the third floor from the top,
The processing unit calculates the hierarchical position of the car based on the detection by the landing detection unit,
The processing unit resets the calculated hierarchy position of the car to the hierarchy of the second car height when the second car detection unit detects the car,
When the first water level detection unit detects the water level, the third car detection unit detects the car, so that the processing unit calculates the calculated hierarchical position of the car into the hierarchy of the third car height. Reset the elevator .