JP2021188343A - Drainage system and drainage method - Google Patents

Abstract

To provide a drainage system and a drainage method, that can accurately detect a stop position of solid matter in a drainage horizontal branch pipe and can discharge the solid matter stopped in the drainage horizontal branch pipe with an appropriate amount of water.SOLUTION: The drainage system 1 comprises: a water supply part 10; a command part; and a detection part 11. The water supply part 10 supplies water to the drainage horizontal branch pipe 31 that receives drainage discharged from a plurality of appliances 2. The command part commands the water supply part 10 to supply water to the drainage horizontal branch pipe 31. The detection part 11 senses the solid matter 9 in the drainage lateral branch pipe 31 to detect the stop position of the solid matter 9. The command part changes a state of water supply to the drainage horizontal branch pipe 31 by the water supply part 10 according to a detection result of the detection part 11.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to drainage systems and drainage methods.

Patent Document 1 discloses a drainage pipe clogging detection system that detects a clogging state of a drainage pipe. This drainage pipe clogging detection system detects the blocked state in the drainage pipe based on the water level information in the drainage horizontal branch pipe obtained from the water detector installed in the drainage horizontal branch pipe.

Japanese Unexamined Patent Publication No. 2019-73868

In the drainage pipe clogging detection system disclosed in Patent Document 1, since the blocked state in the drainage pipe is detected based on the water level information in the drainage lateral branch pipe obtained from the water detector, the stop position of the solid matter is accurately grasped. Is difficult.

This disclosure has been made in view of the above reasons, and is a drainage system and drainage system that can accurately detect the stop position of solid matter in the drainage horizontal branch pipe and discharge the solid matter stopped in the drainage horizontal branch pipe with an appropriate amount of water. The purpose is to provide a method.

The drainage system according to one aspect of the present disclosure has a water supply unit, a command unit, and a detection unit. The water supply unit supplies water to a drainage lateral branch pipe that receives drainage discharged from a plurality of appliances. The command unit commands the water supply unit to supply water to the drainage lateral branch pipe. The detection unit senses the solid matter in the drainage lateral branch pipe and detects the stop position of the solid matter. The command unit changes the mode of water supply to the drainage lateral branch pipe by the water supply unit according to the detection result of the detection unit.

The drainage method according to one aspect of the present disclosure is a drainage method using the drainage system, and the water supplied from the water supply unit to the drainage lateral branch pipe by the command of the command unit is used in the drainage lateral branch pipe. The solid matter stopped at is flowed to the downstream side.

In the drainage system and the drainage method according to one aspect of the present disclosure, the stop position of the solid matter in the drainage lateral branch pipe can be accurately detected, and the solid matter stopped in the drainage lateral branch pipe can be discharged with an appropriate amount of water.

FIG. 1 is a cross-sectional view showing a drainage system according to the first embodiment of the present disclosure. FIG. 2 is a block diagram of the toilet bowl device provided in the drainage system of the same. FIG. 3 is a block diagram of the same drainage system. FIG. 4 is a cross-sectional view showing a drainage system according to the second embodiment of the present disclosure. FIG. 5 is a block diagram of the same drainage system. FIG. 6 is a cross-sectional view showing a drainage system according to the third embodiment of the present disclosure. FIG. 7 is a cross-sectional view showing a drainage system according to the fourth embodiment of the present disclosure.

The present disclosure relates to a drainage system and a drainage method for draining water from a plurality of instruments to a drainage lateral branch pipe.

(1) First Embodiment FIG. 1 shows the drainage system 1 of the first embodiment. The drainage system 1 of the present embodiment is applied to, for example, a building in which a plurality of toilet bowl devices 2 are installed. The building to which the drainage system 1 is applied may be a residential building or a non-residential building. The residential building is, for example, an apartment house such as an apartment or a condominium, or a detached house. Non-residential buildings are, for example, offices, commercial buildings, stores, factories, warehouses or public toilets.

The drainage system 1 includes a plurality of appliances 2 and a drainage system 3 for discharging the drainage from the plurality of appliances 2 to the outside of the building. The drainage system 1 of the present embodiment has three appliances 2. The number of appliances 2 included in the drainage system 1 is not limited to three, and may be four or more, or two or less.

Each of the plurality of appliances 2 is a toilet bowl device. The device 2 is not limited to the toilet device, and may be, for example, another sanitary device for draining water such as a hand wash basin, a wash basin, a bathtub, or a sink. Further, the drainage system 1 may be provided with one type of equipment or a plurality of types of equipment as the plurality of equipments 2. The plurality of types of appliances are, for example, a toilet bowl device having a toilet bowl and a toilet bowl device having a urinal, a hand wash basin and a wash basin, and the like.

As shown in FIG. 2, the toilet bowl device (equipment) 2 has a toilet bowl 20 and a water supply device 21 that supplies water for cleaning to the toilet bowl 20. The toilet bowl 20 is a flush toilet bowl and is a toilet bowl. Although the toilet bowl 20 is a Western-style toilet bowl, it may be a Japanese-style toilet bowl. Further, the toilet bowl 20 may be a urinal.

As the water supply device 21, for example, a device that supplies water to the toilet bowl 20 by a water supply method such as a wash valve type or a tank type is used. The water supply device 21 can switch between a water supply state in which water is supplied to the toilet bowl 20 and a water supply stop state in which water supply to the toilet bowl 20 is stopped. This switching is performed, for example, by driving the solenoid valve 22 included in the water supply device 21.

The toilet bowl device 2 further has a trap 23. The trap 23 of the present embodiment is a movable trap. The movable trap has a deformable tubular trap main body 24 and a motor 25 for driving the trap main body 24. By driving the motor 25, the trap body 24 can switch between a water storage posture in which water is stored in the toilet bowl 20 and a drainage posture in which the water in the toilet bowl 20 is discharged to the drainage system 3.

The trap 23 is not limited to the movable trap, and may be, for example, a tube trap such as an S-type trap or a P-type trap. Further, the trap 23 may be formed of a component different from the toilet bowl 20, or may be integrally formed with the toilet bowl 20.

The toilet device 2 further has a control device 26 for controlling the water supply device 21 and the trap 23. The control device 26 is, for example, a microcomputer. The microcomputer has a processor and a memory. By executing the program stored in the memory by the processor, the microcomputer functions as the control device 26. The program executed by the processor may be pre-recorded in the memory of the microcomputer, may be recorded in a recording medium such as a memory card, and may be provided through a telecommunication line such as the Internet. .. In the plurality of toilet devices 2, the control devices 26 can communicate with each other.

The cleaning operation for cleaning the toilet bowl 20 in each toilet bowl device 2 is performed by the control device 26 controlling the trap 23 and the water supply device 21. When the control device 26 receives a command to clean the toilet bowl 20 from the remote controller or the like, the control device 26 drives the motor 25 to switch the trap main body 24 from the water storage posture to the drainage posture, and changes the water supply device 21 from the water supply stop state to the water supply state. Switch. As a result, the toilet device 2 is in a drainage state in which the water in the toilet 20 is discharged through the trap 23, and the cleaning of the toilet 20 is started. The control device 26 drives the trap 23 to switch the trap main body 24 from the drainage posture to the water storage posture after a predetermined time has elapsed from the time when the cleaning of the toilet bowl 20 is started, and then the water supply device 21 is changed from the water supply state. Switch to the water supply stop state. As a result, the toilet device 2 returns to the state of accumulated water in which water is accumulated in the toilet 20, and the cleaning operation is completed. When the trap 23 is not a movable trap but a trap pipe or the like, the control device 26 may switch the water supply device 21 between the water supply state and the water supply stop state to perform the cleaning operation of the toilet bowl 20.

Each toilet device 2 further has a drainage unit 27 that leads to the trap 23 and discharges the water discharged from the trap 23. The drainage unit 27 is, for example, a container or a drainage pipe that receives the water discharged from the trap 23.

The drainage discharged from the drainage section 27 of each toilet device 2 flows to the drainage system 3. The drainage system 3 of the present embodiment is a sewage drainage system, but when the appliance 2 is an appliance other than the toilet bowl device, the drainage system 3 may be a miscellaneous drainage system.

As shown in FIG. 1, the drainage system 3 has a plurality of equipment drainage pipes 30, a drainage horizontal branch pipe 31, and a drainage stand pipe 32. The plurality of fixture drainage pipes 30 and the plurality of toilet bowl devices 2 have a one-to-one correspondence with each other. That is, the drainage system 3 has the same number of equipment drainage pipes 30 as the plurality of toilet bowl devices 2.

Each appliance drainage pipe 30 is connected to the drainage portion 27 (see FIG. 2) of the corresponding toilet device 2 at the upstream end, and the downstream end is connected to the drainage lateral branch pipe 31. That is, each toilet device 2 is connected to the drainage lateral branch pipe 31 via the corresponding equipment drainage pipe 30. Each appliance drainage pipe 30 causes the drainage discharged from the corresponding toilet device 2 to flow to the drainage lateral branch pipe 31.

The drainage horizontal branch pipe 31 receives the drainage discharged from the plurality of fixture drainage pipes 30. The drainage horizontal branch pipe 31 is a horizontal pipe extending in the lateral direction. The drainage lateral branch pipe 31 has a plurality of connecting portions 33. The plurality of connecting portions 33 are located at intervals in the length direction of the drainage lateral branch pipe 31. The plurality of connection portions 33 and the plurality of fixture drainage pipes 30 have a one-to-one correspondence with each other. The drainage lateral branch pipe 31 has the same number of connection portions 33 as the plurality of toilet bowl devices 2.

Each connection portion 33 is connected to the downstream end of the corresponding instrument drainage pipe 30 and is connected to the toilet bowl device 2 via the corresponding instrument drainage pipe 30. The drainage discharged from each toilet device 2 flows to the connection portion 33 via the corresponding instrument drain pipe 30.

The downstream end of the drainage lateral branch pipe 31 is connected to the drainage stand pipe 32. The drainage horizontal branch pipe 31 receives the drainage discharged from the plurality of fixture drainage pipes 30 and drains the drainage to the drainage stand pipe 32.

The drainage stand pipe 32 is a vertical pipe extending in the vertical direction. The downstream end of the drainage stand pipe 32 is connected to, for example, a drainage horizontal main pipe or the like. The drainage that has flowed from the drainage horizontal branch pipe 31 into the drainage stand pipe 32 is discharged to the outside of the building via the drainage horizontal main pipe or the like. That is, the drainage discharged from each toilet device 2 is discharged to the outside of the building via the corresponding equipment drainage pipe 30 and the drainage lateral branch pipe 31. The drainage system 3 does not have to have the drainage stand pipe 32. In this case, the downstream end of the drainage lateral branch pipe 31 is connected to, for example, the drainage lateral main pipe.

The wastewater discharged from each toilet device 2 contains solid matter 9 such as stool, toilet paper or toilet cleaner. When such solid matter 9 stays in the drainage horizontal branch pipe 31, the flow of drainage is obstructed, other solid matter 9 is deposited on the stayed solid matter 9, and the drainage horizontal branch pipe 31 is clogged. It may occur. Hereinafter, a configuration for improving this point will be described. The "solid material 9" in the present disclosure is not limited to a material having a certain shape, but also has a certain shape if it becomes a factor that obstructs the flow of drainage when staying in the drainage lateral branch pipe 31. Some things that you don't have are included.

As shown in FIG. 3, the drainage system 1 includes a water supply unit 10, a detection unit 11, and a command unit 12. The water supply unit 10 supplies water to the drainage horizontal branch pipe 31. The detection unit 11 senses the solid matter 9 in the drainage horizontal branch pipe 31 and detects the stop position of the solid matter 9 in the drainage horizontal branch pipe 31. The command unit 12 commands the water supply unit 10 to supply water to the drainage lateral branch pipe 31 based on the detection result of the detection unit 11.

The water supply unit 10 of the present embodiment is a plurality of toilet bowl devices 2 shown in FIG. That is, in the present embodiment, the plurality of toilet devices 2 supply water to the drainage lateral branch pipe 31 according to the command of the command unit 12. The command unit 12 (see FIG. 2) selects at least one toilet device 2 from the plurality of toilet devices 2 as the toilet device that supplies water to the drainage lateral branch pipe 31 based on the detection result of the detection unit 11. The plurality of toilet devices 2 supply water to the drainage lateral branch pipe 31 by discharging water from at least one toilet device 2 selected by the command unit 12 to the drainage lateral branch pipe 31. The toilet device 2 selected by the command unit 12 supplies water to the drainage lateral branch pipe 31 by switching to the drainage state described above. That is, in the toilet device 2, the trap main body 24 is in the drainage posture and the water supply device 21 is in the water supply state by the control by the control device 26 shown in FIG. 2, and the toilet device 2 is transferred to the drainage lateral branch pipe 31. Water is supplied. Although the water supply unit 10 of the present embodiment is a plurality of toilet bowl devices 2, it may be a water supply device provided separately from the plurality of toilet bowl devices 2.

The detection unit 11 of the present embodiment has a sensor 13 that senses the solid matter 9 in the drainage horizontal branch pipe 31, and based on the detection result of the sensor 13, the solid matter 9 in the drainage horizontal branch pipe 31. Detects the stop position.

The sensor 13 detects the presence or absence of the solid matter 9 in the detection region and the velocity of the solid matter 9. The sensor 13 is an active sensor that emits a transmitted wave such as an ultrasonic wave or an electromagnetic wave to perform sensing on a solid substance 9 to be detected, and is, for example, an ultrasonic sensor or a radio wave sensor. The sensor 13 may be a passive sensor that receives a received wave such as an electromagnetic wave emitted by a solid substance 9 to be detected and performs sensing. Further, the sensor 13 is not limited to an ultrasonic sensor or a radio wave sensor, and may be, for example, an image sensor that captures a solid object 9 to be detected, an optical sensor, or the like.

The sensor 13 is installed in the drainage lateral branch pipe 31, for example, in a state of being embedded in the upper part of the drainage lateral branch pipe 31 or in a state of being fitted in a hole formed in the upper part of the drainage lateral branch pipe 31. The sensor 13 emits a transmitted wave such as an ultrasonic wave or an electromagnetic wave in a direction including a downward component, and a region located below the sensor 13 in the drainage lateral branch pipe 31 is set as a detection region. The sensor 13 may be installed in the drainage horizontal branch pipe 31 before the drainage horizontal branch pipe 31 is constructed, or may be installed after the drainage horizontal branch pipe 31 is constructed.

The sensor 13 is installed, for example, in a portion between two adjacent connecting portions 33 in the drainage lateral branch pipe 31. The sensor 13 of the present embodiment is installed at a position in the drainage lateral branch pipe 31 between the connection portion 33 located on the most downstream side of the plurality of connection portions 33 and the connection portion 33 located next on the downstream side. The detection area of the sensor 13 is located between these two connecting portions 33. The installation position of the sensor 13 and the position of the detection area in the drainage horizontal branch pipe 31 are not limited. For example, the detection area of the sensor 13 is a connection between the second or more connection portions 33 counted from the connection portion 33 located on the most downstream side of the plurality of connection portions 33 and one upstream side of the connection portion 33. It may be located between the portion 33 and the portion 33. Further, the detection area of the sensor 13 may be located on the downstream side of the connecting portion 33 located on the most downstream side in the drainage lateral branch pipe 31.

The drainage system 1 includes a control unit 4 (see FIG. 2) and a storage unit 5 (see FIG. 3). Some functions of the detection unit 11 are realized by the control unit 4 and the storage unit 5. The control unit 4 includes a plurality of control devices 26 included in the plurality of toilet bowl devices 2. That is, the control device 26 included in each toilet device 2 constitutes a part of the control unit 4. The control unit 4 may be composed of only a plurality of control devices 26, or may further have a server that communicates with the plurality of control devices 26 via a network. The control unit 4 can communicate with the sensor 13.

The storage unit 5 shown in FIG. 3 is composed of a device selected from ROM (Read Only Memory), RAM (Random Access Memory), EEPROM (Electrically Erasable Program Read Memory), and the like. The storage unit 5 may be provided in the toilet bowl device 2 or may be provided in a place different from the toilet bowl device 2.

The storage unit 5 stores information for estimating the stop position of the solid matter 9 in the drainage lateral branch pipe 31 based on the velocity of the solid matter 9 detected by the sensor 13. This information is, for example, the gradient and the number of bends of the drainage lateral branch pipe 31.

The detection unit 11 (control unit 4) constantly or performs a cleaning operation of any one of the plurality of other toilet device 2 except the toilet device 2 connected to the connection unit 33 located on the most downstream side. When this is done, the sensor 13 detects the solid matter 9. Then, the detection unit 11 detects the stop position of the solid matter 9 in the drainage system 3 based on the detection result of the sensor 13. In this case, the detection unit 11 detects the stop position of the solid material 9 in the drainage system 3 based on the detection result of the sensor 13 and the information stored in the storage unit 5.

When the solid substance 9 detected by the sensor 13 is moving in the detection area after the toilet device 2 starts the cleaning operation, the detection unit 11 determines a portion downstream of the detection area of the sensor 13 in the drainage system 3. The stop position of the solid material 9 is set. In this case, the detection unit 11 estimates the stop position of the solid matter 9 in the drainage system 3 by performing a calculation based on the speed of the solid matter 9 detected by the sensor 13 and the information stored in the storage unit 5. That is, in this case, the detection unit 11 detects the stop position of the solid matter 9 based on the speed of the solid matter 9 and the information stored by the storage unit 5. Even if the solid matter 9 is detected by the sensor 13, the stop position may not be estimated by the drainage lateral branch pipe 31 if it is in a moving state instead of a stopped state and the moving speed is high. If the stop position is not estimated even if the solid matter 9 is detected by the sensor 13, the state of water supply to the drainage lateral branch pipe 31 by the water supply unit 10 is not changed.

When the sensor 13 detects that the solid matter 9 is continuously present in the detection region for a predetermined time or longer, the detection unit 11 sets the detection region of the sensor 13 in the drainage lateral branch pipe 31 as the stop position of the solid matter 9. do. That is, in this case, the detection unit 11 detects the stop position of the solid matter 9 based on the information on the presence / absence of the solid matter 9 detected by the sensor 13.

When the sensor 13 does not detect the solid matter 9 for a predetermined time or longer even though the cleaning operation of the toilet bowl device 2 is started, the detection unit 11 is upstream from the detection area of the sensor 13 in the drainage lateral branch pipe 31. The location on the side is estimated as the stop position. That is, in this case, the detection unit 11 detects the stop position of the solid matter 9 based on the information on the presence / absence of the solid matter 9 detected by the sensor 13. The predetermined time is set for each toilet bowl device 2, for example.

The function of the command unit 12 is realized by the control unit 4 (see FIG. 2). When the command unit 12 determines that the stop position of the solid matter 9 detected by the detection unit 11 is inside the drainage horizontal branch pipe 31 and there is a factor that obstructs the drainage flow of the drainage horizontal branch pipe 31. , The water supply unit 10 (plural number of toilet devices 2) is instructed to supply water to the drainage lateral branch pipe 31. As a result, water is supplied from the water supply unit 10 to the drainage horizontal branch pipe 31, and the solid material 9 stopped at the drainage horizontal branch pipe 31 is discharged to the drainage stand pipe 32 on the downstream side of the drainage horizontal branch pipe 31. To.

When the command unit 12 issues a water supply command to the water supply unit 10, the command unit 12 changes the state of water supply to the drainage lateral branch pipe 31 by the water supply unit 10 according to the detection result of the detection unit 11. Specifically, the command unit 12 selects at least one toilet device 2 from the plurality of toilet devices 2 based on the detection result of the detection unit 11, and drains the drainage lateral branch with respect to the selected at least one toilet device 2. Command the water supply to the pipe 31.

For example, as shown by the two-dot chain line in FIG. 1, the stop position of the solid matter 9 detected by the detection unit 11 is located downstream of the connection unit 33 located on the most downstream side of the drainage lateral branch pipe 31. do. In this case, the command unit 12 commands the water supply to the drainage lateral branch pipe 31 only to the toilet device 2 connected to the connection unit 33 located on the most downstream side.

Further, it is assumed that the stop position of the solid object 9 detected by the detection unit 11 is the detection region of the sensor 13. In this case, the command unit 12 supplies water to the drainage lateral branch pipe 31 only to the toilet bowl device 2 connected to the second connection unit 33 counting from the connection unit 33 located on the most downstream side of the plurality of connection units 33. Command.

Further, it is assumed that the stop position of the solid matter 9 detected by the detection unit 11 is on the upstream side of the detection region of the sensor 13. In this case, the command unit 12 commands the water supply to the drainage lateral branch pipe 31 only to the toilet device 2 connected to the connection unit 33 located on the most upstream side.

By changing the mode of water supply to the drainage horizontal branch pipe 31 by the water supply unit 10 based on the stop position of the solid matter 9 detected by the detection unit 11 in this way, the solid matter stopped in the drainage horizontal branch pipe 31. 9 can be flushed to the drainage stand 32 with an appropriate amount of water.

Of the plurality of toilet bowl devices 2, the toilet bowl device 2 to which a water supply command is given from the command unit 12 can be appropriately changed. Further, the number of toilet bowl devices 2 to which the command unit 12 commands the water supply to the drainage lateral branch pipe 31 may be a plurality. For example, when the stop position of the solid matter 9 is in the detection area of the sensor 13, the command unit 12 may issue a command to supply water to the drainage lateral branch pipe 31 to all the toilet bowl devices 2. When the stop position of the solid matter 9 is in the detection area of the sensor 13, the command unit 12 is used for all the connection units 33 except the toilet device 2 connected to the connection unit 33 located on the most downstream side. The toilet device 2 may be instructed to supply water to the drainage horizontal branch pipe 31. Similarly, when the stop position of the solid matter 9 is on the upstream side of the detection area of the sensor 13, the command unit 12 commands all the toilet bowl devices 2 to supply water to the drainage lateral branch pipe 31. You may go. Further, when the stop position of the solid matter 9 is on the upstream side of the detection area of the sensor 13, the command unit 12 is connected to the connection unit 33 located on the most downstream side of the plurality of connection units 33. A command to supply water to the drainage lateral branch pipe 31 may be given to all the toilet bowl devices 2 except 2.

Further, the change of the water supply mode by the water supply unit 10 is not limited to the selection of the toilet device 2 for supplying water. For example, the command unit 12 selects the toilet device 2 to supply water based on the detection result of the detection unit 11, and determines the amount of water supplied from the selected toilet device 2 to the drainage lateral branch pipe 31. You may. In this case, the amount of water supplied from the toilet device 2 to the drainage lateral branch pipe 31 is changed between, for example, the time when the trap 23 is in the drainage posture and the time when the water supply device 21 is in the water supply state by the control device 26. It can be changed by doing. For example, when the stop position of the solid matter 9 detected by the detection unit 11 is on the upstream side of the detection area of the sensor 13, the command unit 12 is connected to the connection unit 33 located on the most upstream side. With respect to 2, a larger amount of water than the amount of water supplied to the drainage lateral branch pipe 31 by the toilet bowl device 2 connected to the connection portion 33 located on the most downstream side is supplied to the drainage lateral branch pipe 31. You may try to do it.

Further, when the amount of water discharged from the toilet device 2 to the drainage horizontal branch pipe 31 can be adjusted, the water discharged from the toilet device 2 to the drainage horizontal branch pipe 31 when the same toilet device 2 performs the next cleaning operation. The amount may be determined based on the detection result of the detection unit 11 described above. For example, if the stop position of the solid matter 9 detected by the detection unit 11 is in the drainage horizontal branch pipe 31 after the cleaning operation of a certain toilet device 2 is performed, the toilet device 2 is washed next time. The amount of water discharged from the toilet device 2 to the drainage lateral branch pipe 31 during the operation is increased. By doing so, it is possible to prevent the solid matter 9 contained in the drainage discharged from the toilet device 2 from stopping in the drainage lateral branch pipe 31 when the toilet device 2 performs the cleaning operation. can.

Further, as the sensor 13, a sensor capable of detecting at least one of the size and shape of the solid matter 9 in addition to the presence / absence of the solid matter 9 and the speed of the solid matter 9 may be used. In this case, the sensor 13 may be a sensor capable of detecting only the size of the solid matter 9 or the shape of the solid matter 9 among the size and shape of the solid matter 9, or may be the size of the solid matter 9. It may be a sensor capable of detecting both the shape of the solid material 9 and the shape of the solid material 9.

By using such a sensor 13, the detection unit 11 can detect at least one of the size and shape of the solid matter 9, and the command unit 12 can detect the water supply unit 10 based on the detection result. It becomes possible to change the mode of water supply to the drainage horizontal branch pipe 31. For example, the command unit 12 changes the toilet device 2 that commands the water supply to the drainage lateral branch pipe 31 based on the stop position of the solid matter 9 detected by the detection unit 11 and the size and shape of the solid matter 9. be able to. Further, the command unit 12 determines the number of toilet devices 2 that command water supply to the drainage lateral branch pipe 31 based on the stop position of the solid matter 9 detected by the detection unit 11 and the size and shape of the solid matter 9. It is possible to change or change the amount of water supplied to the drainage horizontal branch pipe 31 from the toilet device 2 that commands the water supply to the drainage horizontal branch pipe 31. Therefore, the solid material 9 stopped in the drainage lateral branch pipe 31 can be discharged with a more appropriate amount of water.

(2) Second Embodiment Next, the second embodiment will be described. In the following description of the second embodiment, the same reference numerals are given to the matters common to the first embodiment, and the description thereof will be omitted.

As shown in FIGS. 4 and 5, the detection unit 11 of the present embodiment has a plurality of sensors 13. The plurality of sensors 13 are provided at intervals in the length direction of the drainage lateral branch pipe 31. In the present embodiment, the sensor 13 is provided on the downstream side of each connection portion 33 in the drainage horizontal branch pipe 31, and the sensor 13 and the connection portion 33 alternate from the downstream side to the upstream side of the drainage horizontal branch pipe 31. It is located one by one. The detection area of each sensor 13 is a portion of the drainage lateral branch pipe 31 on the downstream side of the connection portion 33 located on the most downstream side or a portion between the connecting portions 33 adjacent to each other in the length direction of the drainage lateral branch pipe 31. Is. Each sensor 13 is, for example, a sensor similar to the sensor 13 of the first embodiment. It should be noted that each sensor 13 may be at least a sensor capable of detecting the presence or absence of the solid matter 9 in the detection region.

The detection unit 11 (control unit 4) detects the solid matter 9 by each sensor 13 at all times or when any one of the plurality of toilet bowl devices 2 performs a cleaning operation. Then, the detection unit 11 detects the stop position of the solid matter 9 in the drainage system 3 based on the detection result. When any of the toilet bowl devices 2 among the plurality of toilet bowl devices 2 performs the cleaning operation, the detection unit 11 uses the toilet bowl device 2 which has performed the cleaning operation on the drainage lateral branch pipe 31 among the plurality of sensors 13. The solid matter 9 may be detected by using only the sensor 13 located on the downstream side of the connected connection portion 33.

When the detection unit 11 of the present embodiment detects a state in which the solid substance 9 is continuously present in the detection area for a predetermined time or more among the plurality of sensors 13, the detection area of the sensor 13 is detected. Is the stop position of the solid matter 9. As a result, the detection unit 11 detects the stop position of the solid matter 9 in the drainage system 3.

For example, after the toilet bowl device 2 has performed a cleaning operation, all the sensors 13 have detected the presence of the solid matter 9, but all the sensors 13 have been in a state where the solid matter 9 has been continuously present for a predetermined time or longer. It is assumed that it was not detected. In this case, the detection unit 11 sets the stop position of the solid matter 9 on the downstream side of the drainage lateral branch pipe 31 in the drainage system 3.

Further, when a sensor 13 detects a state in which the solid matter 9 is continuously present for a predetermined time or longer, the detection unit 11 sets the detection region of the sensor 13 as the stop position of the solid matter 9.

Further, when none of the sensors 13 detects the presence of the solid matter 9 after the toilet device 2 has performed the cleaning operation, the detection unit 11 is located on the most upstream side of the drainage lateral branch pipe 31. The portion upstream of the located sensor 13 is set as the stop position of the solid matter 9.

If there is a region between two sensors 13 adjacent to each other in the length direction of the drainage lateral branch pipe 31 that does not belong to the detection region of any of the sensors 13, the solid matter 9 stopped in this region is any of them. Even the sensor 13 does not detect it for a predetermined time or longer. In this case, the detection unit 11 may estimate the stop position of the solid matter 9 based on the speed of the solid matter 9 detected by the sensor 13 and the information stored in the storage unit 5. Further, in the drainage horizontal branch pipe 31, the detection unit 11 sets the portion immediately downstream of the detection area of the sensor 13 that finally detects the presence of the solid matter 9 after the toilet device 2 performs the cleaning operation. It may be estimated to be the stop position of.

Also in the command unit 12 of the present embodiment, the stop position of the solid material 9 detected by the detection unit 11 is inside the drainage horizontal branch pipe 31, and the drainage horizontal branch pipe 31 has a factor that obstructs the flow of drainage. When the determination is made, the water supply unit 10 is instructed to supply water to the drainage horizontal branch pipe 31. Further, when the command unit 12 issues a water supply command to the water supply unit 10, the command unit 12 selects at least one toilet device 2 from the plurality of appliances 2 based on the detection result of the detection unit 11. , Command the water supply to the drainage lateral branch pipe 31 to at least one selected toilet device 2.

For example, the command unit 12 connects to the drainage horizontal branch pipe 31 only to the toilet device 2 connected to the connection unit 33 located upstream of the stop position of the solid material 9 detected by the detection unit 11. Water supply command. In this case, the command unit 12 issues a water supply command to the drainage lateral branch pipe 31 only to one toilet device 2 connected to the connection unit 33 closest to the stop position of the solid matter 9 detected by the detection unit 11. You may do so, or you may issue a command to supply water to the drainage lateral branch pipe 31 to the plurality of toilet bowl devices 2.

By changing the mode of water supply to the drainage horizontal branch pipe 31 by the water supply unit 10 based on the stop position of the solid matter 9 detected by the detection unit 11 in this way, the solid matter stopped in the drainage horizontal branch pipe 31. 9 can be flushed to the drainage stand 32 with an appropriate amount of water.

Even in this embodiment, the toilet device 2 to which the water supply command is given from the command unit 12 can be appropriately changed. Further, the change of the water supply mode by the water supply unit 10 is not limited to the selection of the toilet device 2 for supplying water. For example, the command unit 12 selects the toilet device 2 to supply water based on the detection result of the detection unit 11, and determines the amount of water supplied from the selected toilet device 2 to the drainage lateral branch pipe 31. You may.

Further, as the sensor 13, a sensor capable of detecting at least one of the size and shape of the solid matter 9 in addition to the presence or absence of the solid matter 9 may be used. In this case, the detection unit 11 can detect at least one of the size and shape of the solid matter 9, and the command unit 12 to the drainage lateral branch pipe 31 by the water supply unit 10 based on this detection result. It becomes possible to change the state of water supply.

(3) Third Embodiment Next, the third embodiment will be described. In the following description of the third embodiment, the same reference numerals are given to the matters common to the first embodiment, and the description thereof will be omitted.

As shown in FIG. 6, the sensor 13 of the present embodiment is provided on the upstream side of the connection portion 33 located on the most upstream side of the drainage lateral branch pipe 31. The sensor 13 detects, for example, the distance from the sensor 13 to the solid object 9.

The sensor 13 is located in the drainage lateral branch pipe 31. The sensor 13 emits a transmitted wave such as an ultrasonic wave or an electromagnetic wave toward the downstream side of the drainage lateral branch pipe 31. The detection area of the sensor 13 extends from the sensor 13 to the downstream end of the drainage lateral branch pipe 31.

The detection unit 11 of the present embodiment detects the solid matter 9 by the sensor 13 at all times or when any of the toilet bowl devices 2 performs a cleaning operation, and the detection result is obtained. The stop position of the solid matter 9 in the drainage system 3 is detected based on the above. In this case, the detection unit 11 detects the stop position of the solid matter 9 in the drainage system 3 based on the distance from the sensor 13 to the solid matter 9 detected by the sensor 13, for example.

In the present embodiment, one sensor 13 can detect the solid matter 9 located in a wide range in the length direction of the drainage lateral branch pipe 31. The detection area of the sensor 13 may include at least three or more connection portions 33.

(4) Fourth Embodiment Next, the fourth embodiment will be described. In the following description of the fourth embodiment, the same reference numerals are given to the matters common to the first embodiment, and the description thereof will be omitted.

As shown in FIG. 7, the sensor 13 of the present embodiment is provided on the downstream side of the connecting portion 33 located on the most downstream side of the drainage lateral branch pipe 31. The sensor 13 detects, for example, the distance from the sensor 13 to the solid object 9.

The sensor 13 is located in the drainage lateral branch pipe 31. The sensor 13 emits a transmitted wave such as an ultrasonic wave or an electromagnetic wave toward the upstream side of the drainage lateral branch pipe 31. The detection area of the sensor 13 extends from at least the sensor 13 to the connection portion 33 located on the most upstream side.

The detection unit 11 of the present embodiment detects the solid matter 9 by the sensor 13 at all times or when any of the toilet bowl devices 2 performs a cleaning operation, and the detection result is obtained. The stop position of the solid matter 9 in the drainage system 3 is detected based on the above. In this case, the detection unit 11 detects, for example, the stop position of the solid matter 9 in the drainage system 3 based on the distance from the sensor 13 detected by the sensor 13 to the solid matter 9.

In the present embodiment, one sensor 13 can detect the solid matter 9 located in a wide range in the length direction of the drainage lateral branch pipe 31. The detection area of the sensor 13 may include at least three or more connection portions 33.

(5) Aspect As is clear from the first to fourth embodiments described above, the drainage system (1) of the first aspect has the following configuration. The drainage system (1) includes a water supply unit (10), a command unit (12), and a detection unit (11). The water supply unit (10) supplies water to the drainage horizontal branch pipe (31) that receives the drainage discharged from the plurality of appliances (2). The command unit (12) commands the water supply unit (10) to supply water to the drainage horizontal branch pipe (31). The detection unit (11) senses the solid matter (9) in the drainage lateral branch pipe (31) and detects the stop position of the solid matter (9). The command unit (12) changes the state of water supply to the drainage horizontal branch pipe (31) by the water supply unit (10) according to the detection result of the detection unit (11).

According to this aspect, the stop position of the solid matter (9) can be accurately detected by sensing the solid matter (9) in the drainage lateral branch pipe (31) by the detection unit (11). Then, the command unit (12) changes the mode of water supply to the drainage lateral branch pipe (31) by the water supply unit (10) based on the detection result. Therefore, the solid matter (9) stopped in the drainage horizontal branch pipe (31) can be discharged with an appropriate amount of water.

The drainage system (1) of the second aspect can be realized in combination with the first aspect. In the second aspect, the detection unit (11) has a sensor (13) that senses a solid substance (9) in the drainage lateral branch pipe (31). The detection unit (11) estimates the stop position of the solid matter (9) based on the detection result of the sensor (13).

According to this aspect, the detection unit (11) estimates the stop position of the solid matter (9) based on the detection result of the sensor (13), and accurately detects the stop position of the solid matter (9). Can be done.

The drainage system (1) of the third aspect can be realized in combination with the second aspect. In the third aspect, the detection unit (11) further has a storage unit (5) for storing the information of the drainage lateral branch pipe (31). The detection unit (11) estimates the stop position of the solid matter (9) based on the detection result of the sensor (13) and the information stored in the storage unit (5).

According to this aspect, the detection unit (11) of the solid matter (9) is based on the detection result of the sensor (13) and the information of the drainage lateral branch pipe (31) stored in the storage unit (5). The stop position can be detected accurately.

The drainage system (1) of the fourth aspect can be realized in combination with the first aspect. In the fourth aspect, the detection unit (11) has a sensor (13) for detecting the presence or absence of a solid substance (9) in the drainage lateral branch pipe (31).

According to this aspect, the detection unit (11) detects the stop position of the solid matter (9) by detecting the presence or absence of the solid matter (9) in the drainage lateral branch pipe (31) by the sensor (13). can do.

The drainage system (1) of the fifth aspect can be realized in combination with the fourth aspect. In the fifth aspect, the detection unit (11) has a plurality of sensors (13) provided at intervals in the length direction of the drainage lateral branch pipe (31) as the sensor (13).

According to this aspect, the stop position of the solid matter (9) can be detected by detecting the presence or absence of the solid matter (9) in the drainage lateral branch pipe (31) by the plurality of sensors (13).

The drainage system (1) of the sixth aspect can be realized by the combination with any one of the second to fourth aspects. In the sixth aspect, the drainage lateral branch pipe (31) is located at intervals in the length direction of the drainage lateral branch pipe (31), and three or more connecting portions connected to a plurality of appliances (2), respectively. (33). The detection area of the sensor (13) includes three or more connections (33).

According to this aspect, one sensor (13) can detect a solid substance (9) located in a wide range in the length direction of the drainage lateral branch pipe (31), and the number of sensors (13) can be detected. The increase can be suppressed.

The drainage system (1) of the seventh aspect can be realized by the combination with any one of the second to sixth aspects. In the seventh aspect, the sensor (13) is an ultrasonic sensor or a radio wave sensor.

According to this aspect, the stop position of the solid matter (9) in the drainage lateral branch pipe (31) can be detected by using the ultrasonic sensor or the radio wave sensor.

The drainage system (1) of the eighth aspect can be realized by the combination with any one of the first to seventh aspects. In the eighth aspect, the water supply unit (10) is a plurality of appliances (2). Each of the plurality of instruments (2) is a toilet bowl device (2). The command unit (12) selects at least one instrument (2) from the plurality of instruments (2) based on the detection result of the detection unit (11), and with respect to the selected at least one instrument (2). Command the water supply to the drainage horizontal branch pipe (31).

According to this aspect, the toilet device (2) that supplies water to the drainage lateral branch pipe (31) is selected from the plurality of toilet devices (2) based on the detection result of the detection unit (11). The solid matter (9) stopped in the drainage horizontal branch pipe (31) can be discharged with an appropriate amount of water.

The drainage system (1) of the ninth aspect can be realized by the combination with any one of the first to eighth aspects. In the ninth aspect, the detection unit (11) further detects at least one of the size and shape of the solid matter (9). The command unit (12) has at least one of the stop position of the solid matter (9) in the drainage lateral branch pipe (31) and the size and shape of the solid matter (9) detected by the detection unit (11). The mode of water supply to the drainage horizontal branch pipe (31) by the water supply unit (10) is changed accordingly.

According to this aspect, the mode of water supply to the drainage horizontal branch pipe (31) by the water supply unit (10) can be changed more appropriately.

The drainage method according to the tenth aspect is a drainage method using the drainage system (1) according to any one of the first to ninth aspects. It has the following configuration. The water supplied from the water supply unit (10) to the drainage horizontal branch pipe (31) by the command of the command unit (12) causes the solid matter (9) stopped in the drainage horizontal branch pipe (31) to flow to the downstream side.

According to this aspect, it is possible to prevent the flow of drainage from being obstructed by the solid matter (9) remaining in the drainage horizontal branch pipe (31).

1 Drainage system 10 Water supply unit 11 Detection unit 12 Command unit 13 Sensor 2 Equipment (toilet bowl device)
31 Drainage horizontal branch pipe 33 Connection part 5 Storage part 9 Solid matter

Claims (10)

A water supply unit that supplies water to the drainage horizontal branch pipe that receives drainage discharged from multiple appliances,
It is provided with a command unit for instructing the water supply unit to supply water to the drainage lateral branch pipe and a detection unit for sensing solid matter in the drainage lateral branch pipe to detect the stop position of the solid matter.
The command unit changes the mode of water supply to the drainage lateral branch pipe by the water supply unit according to the detection result of the detection unit.
Drainage system. The detector is
It has a sensor that senses the solid matter in the drainage lateral branch pipe, and has a sensor.
The detection unit estimates the stop position of the solid object based on the detection result of the sensor.
The drainage system according to claim 1. The detector is
Further having a storage unit for storing the information of the drainage lateral branch pipe,
The detection unit estimates the stop position of the solid object based on the detection result of the sensor and the information stored in the storage unit.
The drainage system according to claim 2. The detector is
It has a sensor for detecting the presence or absence of the solid matter in the drainage lateral branch pipe.
The drainage system according to claim 1. The detector is
As the sensor, a plurality of sensors provided at intervals in the length direction of the drainage lateral branch pipe are provided.
The drainage system according to claim 4. The drainage horizontal branch pipe
It is located at intervals in the length direction of the drainage lateral branch pipe, and has three or more connections connected to each of the plurality of instruments.
The detection area of the sensor includes three or more connections.
The drainage system according to any one of claims 2 to 4. The sensor is an ultrasonic sensor or a radio wave sensor.
The drainage system according to any one of claims 2 to 6. The water supply unit is the plurality of appliances.
Each of the plurality of instruments is a toilet bowl device.
The command unit selects at least one device from the plurality of devices based on the detection result of the detection unit, and commands the selected at least one device to supply water to the drainage lateral branch pipe.
The drainage system according to any one of claims 1 to 7. The detection unit further detects at least one of the size and shape of the solid matter, and further detects it.
The command unit is drained by the water supply unit according to the stop position of the solid material in the drainage lateral branch pipe detected by the detection unit and at least one of the size and shape of the solid material. Change the mode of water supply to the branch pipe,
The drainage system according to any one of claims 1 to 8. A drainage method using the drainage system according to any one of claims 1 to 9.
The water supplied from the water supply unit to the drainage lateral branch pipe by the command of the command unit causes the solid matter stopped in the drainage lateral branch pipe to flow downstream.
Drainage method.

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