JP6537016B2 - Water storage tank - Google Patents

Description

  The present invention relates to a water storage tank used for a flush toilet.

  BACKGROUND Conventionally, a water storage tank type flush toilet bowl is known that is cleaned by flush water stored in a water storage tank and discharges dirt. There are a plurality of types of flush toilets, and the flush water amount, drainage characteristics, sealing water amount, etc. are different.

  In such a situation, when replacing only the storage tank from the existing flush toilet to which the storage tank is attached, the builder confirms the serial number and the like of the existing flush toilet to be used as it is, and then the existing flush toilet After ordering a water storage tank suitable for the type of toilet bowl and attaching the water storage tank obtained by ordering to the existing flush toilet, the existing flush water wash is performed in order to suppress the decrease in flush performance due to replacement of the flush tank. The water supply conditions suitable for the type of toilet bowl had to be set manually.

  Regarding the setting of the supply condition, for example, in Patent Document 1, the water level in the water storage tank is reduced from the initial water level before the start of cleaning to the predetermined water level so that the cleaning performance is not impaired by the manufacturing error of the flush toilet A technique is disclosed that measures the water level drop time and adjusts the spouting flow rate of the wash water based on the measured water level drop time.

JP 2012-132167 A

  However, in the technology described in Patent Document 1, the instantaneous flow rate serving as a reference value for adjusting the water discharge flow rate is one, or the type of pressure pump for adjusting the water discharge flow rate is one, etc. Since it is assumed that the storage tank is attached to one kind of flush toilet, the reservoir tank could not be used commonly for multiple flush toilets. Even if the storage tank can be used in common, since the various supply conditions such as the flush water volume and the refill water volume differ depending on the type of flush toilet, the supply condition of water suitable for the type of flush toilet to be used is manually I had to set it up. In these cases, the time and labor required for preparation of the water storage tank, such as ordering and setting of the water storage tank, increases, the load on the builder increases, and the water supply condition may be set incorrectly.

  Therefore, the present invention has been made to solve the above-described problems, and one of the objects is to reduce the time and labor required for preparation of the water storage tank and to suppress the erroneous setting of the water supply condition. And

The water storage tank according to the first aspect of the present invention stores the water in the tank main body based on the tank main body that stores water and that can be attached to a plurality of types of flush toilets, and the supply condition set. Supply means for supplying the flush toilet to which the tank body is attached among the flush toilets of the type, acquisition means for acquiring information related to the flush toilet to which the tank body is attached, and the acquisition means The determination means for determining the type of the flush toilet based on the information acquired by the device, and the supply condition of the supply means are suitable for the type based on the type of the flush toilet determined by the determination means. The acquisition means acquires the pressure loss of the flush toilet based on the measurement time related to the change of the water level in the tank body.

In this configuration, the tank body for storing water is freely attachable to a plurality of types of flush toilets, so the reservoir tank can be made common to a plurality of types of flush toilets, so the reservoir tank When replacing only the order, a common water storage tank suitable for the type of the existing flush toilet bowl can be ordered without checking the construction number and the like of the existing flush toilet bowl used by the builder on site. As it is possible, the time and effort required for installing the water storage tank can be reduced.
Further, in the configuration of the water storage tank according to the first aspect of the present invention, the type of the flush toilet based on the acquisition unit acquiring the information related to the flush toilet attached with the tank body and the information acquired by the acquisition unit. Since the determination means for determining the water supply condition is set, the type of the flush toilet bowl can be automatically determined even if the builder does not know the type of the flush toilet when looking at the setting of the supply conditions. And in the configuration of the water storage tank according to the first aspect of the present invention, the setting means sets the supply condition of the supply means to one suitable for the type based on the type of the flush toilet determined by the determination means. Therefore, the time and effort of the installer at the time of setting can be saved. In addition, since the setting means performs the setting without performing the setting manually, the erroneous setting of the water supply condition can be suppressed.
Therefore, according to the configuration of the water storage tank according to the first aspect of the present invention, it is possible to shorten the time and effort taken to install the water storage tank and to suppress the erroneous setting of the water supply condition.
Furthermore, since the pressure loss is likely to differ depending on the type of flush toilet, if the discrimination means can discriminate the type of flush toilet based on the pressure loss calculated by the acquisition means as in this configuration, the flush is performed. The flush toilet can be discriminated more accurately than in the case of discrimination based on other information related to the toilet bowl.

  In the water storage tank according to the third aspect of the present invention, in the second aspect, the water storage tank according to the third aspect includes a valve body for adjusting the amount of water supplied when supplying water to the tank body. The fluctuation amount of the flow rate is calculated, and the supply condition calculated based on the fluctuation amount is set.

  According to this configuration, since the supply condition calculated based on the fluctuation amount is set, the set supply condition can be made more appropriate.

  In the water storage tank according to the fourth aspect of the present invention, in the third aspect, the supply condition includes a supply time of the supply means, the acquisition means acquires one water supply flow rate based on the measurement time, and further After setting the supply time, the other feed water flow rate by use of the valve element is acquired, and the setting means calculates the difference between the other feed water flow rate and the one feed water flow rate to calculate the fluctuation amount. The corrected supply time is set.

  According to this configuration, even when the water supply flow rate fluctuates, an appropriate supply time can be set.

  In the water storage tank according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the acquisition means acquires two or more types of information as the information related to the flush toilet. .

  According to this configuration, the discriminating means can discriminate the flush toilet which can not be distinguished by only one type of information.

  In the water storage tank according to the sixth aspect of the present invention, in the aspect according to any one of the first to fifth aspects, the acquisition means is an input in which a part of the information related to the flush toilet is manually input. Including means.

  In this configuration, even if the part number of the flush toilet bowl disappears from the flush toilet bowl and can not be confirmed, information concerning the flush toilet bowl, such as the appearance and introspection of the flush toilet bowl, the size of the sealing water surface, and the method of water supply , The builder can know if you go to the site. When the builder inputs such information by using the input unit, the type of the flush toilet is determined by the determination unit, and the supply condition is set by the setting unit. Thus, the acquisition means can be configured without newly providing a sensor or the like for automatically acquiring information related to the flush toilet. Further, even if there is a sensor or the like, if there is an input means in addition to this, the judgment means can judge based on a plurality of pieces of information, so it is possible to judge the flush toilet more accurately.

  In the water storage tank according to the seventh aspect of the present invention, in the first aspect, each of the plurality of types of flush toilets is provided with a tag in which identification information is embedded, and the acquisition means is the tank main body When attached to the flush toilet, the tag is read to acquire the identification information as the information related to the flush toilet.

  According to this configuration, since the acquisition unit acquires the identification information of the flush toilet, the discrimination by the discrimination unit becomes easier and more accurate.

  In the water storage tank according to the eighth aspect of the present invention, in any one of the first to seventh aspects, the discrimination means and the setting means are flush toilets stored in advance during respective treatments. Reference information for each type of

  According to this configuration, the processing can be performed accurately and quickly by referring to the reference information in the determination process of the determination means and in the setting means of the setting means.

  According to the water storage tank of the present invention, it is possible to shorten the time taken for the installation of the water storage tank and to suppress the erroneous setting of the water supply condition.

It is the schematic of the toilet apparatus containing the water storage tank which concerns on 1st embodiment of this invention. (A) is the schematic which shows a mode that the water storage tank is attached to the flush toilet. (B) is the schematic which shows a mode that the water storage tank is attached to the type of flush toilet different from (A). (C) is the schematic which shows a mode that the water storage tank is attached to the flush toilet of a kind different from (A) and (B). It is a block diagram which shows schematically the function structure of a water storage tank. It is the related figure of the water level rise time of a storage tank, and the water supply flow rate of a water supply apparatus calculated | required previously, when a water storage tank, a water supply apparatus, and a drainage apparatus are applied to arbitrary flush toilets. It is a related figure of the 1st water supply flow rate of a water supply apparatus, and the water level rise time of a storage tank calculated beforehand when the water storage tank, the water supply apparatus, and the drainage apparatus are applied to a standard toilet. It is a figure which shows an example of a discrimination | determination reference table. It is a figure which shows an example of a supply condition reference table. It is a flowchart which shows the flow of each process of an acquisition means, a discrimination means, and a setting means in the process of each function structure. FIG. 9 is a flowchart of a subroutine related to pressure loss acquisition in step SP12 shown in FIG. 8. It is a time chart which shows operation of acquisition means. It is a related figure of the toilet bowl pressure loss coefficient and the valve opening time of a drainage device. It is a figure which shows an example of an identification information reference table. It is a figure which shows the relationship between water supply time and water supply flow volume. FIG. 9 is a flowchart of a subroutine related to supply condition setting in step SP20 shown in FIG. 8; FIG.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the attached drawings. In order to facilitate understanding of the description, the same constituent elements in the drawings are denoted by the same reference numerals as much as possible, and redundant description will be omitted.

First Embodiment
――― General composition of toilet equipment ―――
First, the whole structure of the toilet apparatus containing the water storage tank which concerns on 1st embodiment of this invention is demonstrated.

  FIG. 1 is a schematic view of a toilet apparatus including a water storage tank according to a first embodiment of the present invention.

  As shown in FIG. 1, the toilet apparatus 1 is attached to the flush toilet bowl 2 made of pottery and the rear of the flush toilet bowl 2 and stores flush water used for flushing the toilet bowl and feeds water to the flush toilet bowl 2 And a water storage tank 4 to be used. The toilet apparatus 1 is a so-called wash-off type, in which flush water is supplied from the water storage tank 4 and the waste water is washed away by the head of the water in the bowl portion 6 of the flush toilet 2.

  The flush toilet 2 has a bowl 6, a water conduit 8, a supply port 10, and a drainage trap pipeline 12.

  The bowl portion 6 is formed on the front side of the upper portion of the flush toilet 2, and the water conduit 8 is formed on the upper portion on the rear side of the bowl portion 6. Further, at the lower center of the bowl portion 6, a water discharge port 10 to which flush water is supplied from the water conduit 8 is formed, and flush water supplied from the water storage tank 4 into the water conduit 8 is similar to that of the bowl portion 6. It is led to the spout 10. Further, a drainage trap pipeline 12 communicating with the bowl portion 6 is formed below the water conduit 8 so that flush water is spouted from the water outlet 10 toward the drainage trap pipeline 12.

  An overhanging rim 14 is formed on the upper edge of the bowl portion 6, and a rim spout 16 to which flush water is supplied from the water conduit 8 is formed on the rim 14, and flush water descends while swirling. The bowl portion 6 can be cleaned.

  At the bottom of the water storage tank 4 located above the water conduit 8 of the flush toilet 2, a drain port 18 is formed which communicates with the water conduit 8 of the flush toilet 2 and drains the flush water in the water storage tank 4. ing.

  The water storage tank 4 includes a box-like tank main body 4A for storing wash water inside, a water supply device 20 for supplying wash water into the tank main body 4A from a water source such as water, and a water conduit 8 of the flush toilet 2 And a drainage device 22 for draining the cleaning water stored in the main body 4A from the drainage port 18. Further, the water storage tank 4 controls the operation of the water supply device 20 and the drainage device 22 based on the float switch 24 which is a water level sensor for detecting the water level in the tank body 4A and the water level information detected by the float switch 24. And an apparatus 26.

  The water supply apparatus 20 includes a water supply pipe 28, a water supply valve 30, and a water supply port 32 from the upstream side.

  A constant flow rate valve 34 is provided on the upstream side of the water supply pipe 28, and a water stop valve 36 is provided on the upstream side of the constant flow rate valve 34. Etc. are connected to a water supply source (not shown).

  The water supply valve 30 is an electromagnetic valve, and the open / close operation of the water supply valve 30 is controlled by a command from the control device 26 based on the water level detection information of the float switch 24 that detects the water level in the tank body 4A. The water supply or the water stop of the washing water from the water supply port 32 into the tank main body 4A is switched.

  Next, the drainage device 22 includes a cylindrical overflow pipe 38, a valve member 40 integrally provided at a lower portion of the overflow pipe 38, and a rotational drive device 42. The upper end portion of the overflow pipe 38 Is connected to the rotation shaft 42 a of the rotary drive 42 via the ball chain 44. Further, the rotary drive unit 42 incorporates a motor (not shown) for driving the rotary shaft 42a, and the operation of the motor (not shown) is controlled by the control unit 26. There is.

Furthermore, the control device 26 is connected to an operation button 46 for the user to instruct the cleaning operation. When a signal that the user operates the operation button 46 is transmitted to the control device 26, the motor (not shown) of the rotary drive 42 operates to rotate the rotary shaft 42a, and in the rotational direction of the rotary shaft 42a. In response, the overflow pipe 38 and the valve member 40 move up and down. More specifically, when the rotation shaft 42a rotates in a predetermined direction, the overflow pipe 38 and the valve member 40 are pulled up for a predetermined time together with the ball chain 44, and the drainage port 18 is opened. Further, the larger the amount by which the overflow pipe 38 and the valve member 40 are pulled up, the longer the valve opening time of the drainage device 22 and the amount of flush water drained from the tank body 4A to the water conduit 8 of the flush toilet 2 It is supposed to be more.
On the other hand, when the rotation shaft 42a rotates in the direction opposite to the predetermined direction, the overflow pipe 38 and the valve member 40 descend with the lowering of the water level in the tank body 4A, and the drainage port 18 is closed by the valve member 40. There is.

  In the drainage device 22 of the present embodiment, the overflow pipe 38 and the valve member 40 move up and down by driving the rotary shaft 42 a of the rotary drive unit 42, and the drainage port 18 is opened and closed. Although the form of (a) is demonstrated, the form of a flapper-type drainage valve may be applied, and the form which drains with a pump may be applied.

  Here, the flush water remaining in the tank body 4A when the valve member 40 closes the flush port 18 from the state where the flush port 18 is opened and the water level in the tank body 4A is decreasing Water level is the dead water level DWL1. Further, in the normal cleaning operation of the flush toilet 2, the water level in the tank body 4A contacts the float switch 24 when the water level in the tank body 4A contacts the float switch 24 by the water supply of the water supply device 20 from the state of the dead water level DWL1. When it rises up, the water supply by the water supply apparatus 20 is stopped. Incidentally, the water level DWL2 in the tank body 4A in FIG. 1 indicates the water level (DWL2 = 0) in the state where the tank body 4A is empty. The time for which the water level rises from the dead water level DWL1 in the tank body 4A to the stop water level WL by the water supply by the water supply device 20 is, for example, 25 to 75 seconds.

  Further, the control device 26 controls the drive of the rotation shaft 42a of the rotation drive device 42 according to the command of the cleaning mode from the operation button 46, and raises the valve member 40 to open the drainage port 18 of the tank main body 4A. By controlling the valve opening time, the amount of flush water drained from the drain port 18 of the tank body 4A to the water conduit 8 of the flush toilet 2 is controlled. By the way, the operation button 46 has a "large wash mode" for washing with the largest amount of washing water, a "small washing mode" for washing with a smaller amount of washing water than the large washing mode, and a washing water amount for the small washing mode. A washing mode switching button (not shown) is provided which selects and switches one of the three washing modes of "eco small washing mode" in which washing is carried out with a small amount of washing water.

  In the present embodiment, the amount of flush water drained from the drainage port 18 of the tank main body 4A to the water conduit 8 of the flush toilet 2 includes three large, medium, and small time periods for raising the valve member 40 of the drainage device 22. By setting to the stage, three types of toilet bowl cleaning can be performed by the large cleaning mode, the small cleaning mode, and the eco small cleaning mode, but the type of cleaning mode is not limited to three, and the large cleaning It may be a toilet that performs only the mode, or may be a toilet that performs two types of the large wash mode and the small wash mode.

  Furthermore, the control device 26 is provided with a timing device 48 capable of measuring the water level rise time when the water level in the tank main body 4A is rising, and based on the water level rise time measured by the timing device 48. The control to detect the pressure loss of the flush toilet 2 installed at each installation place, the details of which will be described later, can be performed (hereinafter, "toilet pressure loss learning control"). As a result, after the flush toilet 2 is installed at each installation site, the pressure loss of the flush toilet 2 (especially, the water conduit 8) for each flush toilet 2 before starting the practical use of the toilet And the like, it can also function as an adjusting means for appropriately adjusting the driving time of the rotary drive device 42 of the drainage device 22 and the valve opening time of the valve member 40 in accordance with the pressure loss).

  Furthermore, the control device 26 is provided with an alarm 50 for notifying the user of an abnormality by blinking an LED display or the like that proper toilet pressure loss learning control is not performed.

――― Installation of water storage tank 4 ―――
Next, attachment of the water storage tank 4 will be described.

  FIG. 2A is a schematic view showing the water storage tank 4 attached to the flush toilet 2A. FIG. 2 (B) is a schematic view showing the water storage tank 4 attached to the flush toilet 2B. FIG.2 (C) is schematic which shows a mode that the water storage tank 4 is attached to the flush toilet 2C.

  As shown in FIGS. 2A to 2C, the flush toilets 2A to 2C are different in kind from each other, and for example, the shape and size of the appearance and the inner appearance, the pressure loss and the like are different. However, since the configuration of the flush toilets 2A to 2C is the same as that of the flush toilet 2 described above, the same components will be described with the same reference numerals. Of course, depending on the type of flush toilet 2, a new configuration may be added or an existing configuration may be omitted.

  In the first embodiment, the water storage tank 4 is freely attachable to the plurality of types of flush toilets 2 such as flush toilets 2A to 2C. In order to make it freely attachable, for example, the shape of the water storage tank 4 conforms to the shape of the flush toilet 2 of a plurality of types, the mounting bracket is common, or the water outlet 18 of the water storage tank 4 The position and the size match the position and the size of the water conduit 8 of the flush toilet 2.

――― Functional configuration of water storage tank 4 ―――
Next, the functional configuration of the water storage tank 4 will be described.

  FIG. 3 is a block diagram schematically showing the functional configuration of the water storage tank 4.

  As shown in FIG. 3, the water storage tank 4 includes a storage unit 60, a supply unit 62, an acquisition unit 64, a determination unit 66, and a setting unit 68, in addition to the tank body 4A.

  The storage unit 60 includes a storage device such as a memory. The storage means 60 stores pressure loss calculation data 70, a determination reference table 72, and a supply condition reference table 74. Further, the supply condition setting data 76 is stored in the storage unit 60 by the setting unit 68.

The pressure loss calculation data 70 includes, for example, a first relation R1 as shown in FIG. 4 and a second relation R2 as shown in FIG.
The first relational expression R1 is a water storage tank from the water level rise time T1 of the storage tank 4 experimentally determined in advance and the water supply port 32 of the water supply device 20 in any of the plurality of types of flush toilet 2 of the flush toilet 2 It is a relational expression with the 1st water supply flow rate Q1 supplied to 4th. The relationship between the water level rise time T1 and the first feed water flow rate Q1 is, for example, an inverse relationship. FIG. 4 is a graph showing the relationship between the water level rise time T1 and the first water supply flow rate Q1 based on the first relational expression R1 with the horizontal axis representing the water level rise time and the vertical axis representing the flow rate.
The second relation R2 is a relation between the first water supply flow rate Q1 of the water supply device 20 and the water level rise time T2 of the water storage tank 4, which are experimentally determined in advance in the reference toilet to which the water storage tank 4 is applied. The relationship between the water level rise time T2 and the first feed water flow rate Q1 is, for example, an inverse relationship. FIG. 5 is a graph showing the relationship between the water level rise time T1 and the first water supply flow rate Q1 based on the second relational expression R2 with the horizontal axis as the flow rate and the vertical axis as the water level rise time.

  The discrimination reference table 72 is a table for the discrimination means 66 to refer to.

  FIG. 6 shows an example of the discrimination reference table 72. As shown in FIG.

  As shown in FIG. 6, the discrimination reference table 72 describes feature information associated with each type of flush toilet. For example, in the discrimination reference table 72, serial number description column 72A, pressure loss (arbitrary unit) description column 72B, shape description column 72C, shape description column 72D, siphon type description column 72E in order from the left in the figure. And the description column 72F etc. of the magnitude | size of a sealing water surface are provided.

  In the serial number description column 72A, the serial number of each type of flush toilet 2 that can be attached with the water storage tank 4 including flush toilets 2A to 2C is described. In the description column 72A, a model number or an identification number indicating the type of the flush toilet 2 may be described instead of the serial number.

  The pressure drop description column 72B describes the range of pressure loss that occurs in the flush toilet 2 of the type indicated by the corresponding serial number.

  The parameter description column 72C describes the parameters of the flush toilet 2 of the type indicated by the corresponding serial number or the range thereof. As this parameter, for example, the water level lowering time after cleaning, the storage tank drainage flow rate and the like can be mentioned.

  The shape description column 72D describes the shape of the flush toilet 2 of the type indicated by the corresponding serial number.

  The siphon type description column 72E describes whether the flush toilet 2 of the type indicated by the corresponding serial number is siphon type (Yes) or not (No).

  In the description column 72F of the size of the reservoir surface, the size of the reservoir surface (for example, the upper surface) accumulated in the bowl portion 6 when not drained is described. The unit of this size is not particularly limited, and the unit of the description column 72G in the figure is an arbitrary unit.

  Returning to FIG. 3, the supply condition reference table 74 is a table to which the setting means 68 refers.

  FIG. 7 shows an example of the supply condition reference table 74. As shown in FIG.

  As shown in FIG. 7, the supply condition reference table 74 is not particularly limited, but for example, serial number description column 74A, toilet bowl flush water volume (arbitrary unit) description column 74B, refill water volume (arbitrary unit) ), A description column 74D of the total washing water volume, a description column 74E of the third relational expression, and the like are provided.

  The serial number description column 74A describes a serial number common to the serial number of the description column 72A.

  In the toilet bowl flush water amount description column 74B, the flush toilet bowl flush water amount in the flush toilet 2 of the type indicated by the corresponding serial number is described. Note that “the toilet bowl flush water volume” is the volume of water used for flushing the flush toilet 2.

  The refill water amount in the flush toilet 2 of the type indicated by the corresponding serial number is described in the refill water amount description column 74C. The "refill water amount" is the amount of water required to restore the toilet bowl residual water after toilet bowl cleaning.

  The total flush water volume in the flush toilet 2 of the type indicated by the corresponding serial number is described in the total flush water volume description column 74D. The “total flush water volume” is the volume of water required when the toilet apparatus 1 is used once, and is the total volume of flush toilet flush water and refill water.

  The third relational expression column 74E describes a third relational expression between the pressure loss coefficient K experimentally determined in advance by the flush toilet 2 as a reference and the valve opening time T4 of the drainage device 22. The relationship between the pressure loss coefficient K and the valve opening time T4 is the same regardless of the type of the flush toilet 2 and is, for example, in a proportional relationship.

  Returning to FIG. 3, the supply means 62 includes, for example, a drainage device 22. The supply means 62 is based on the supply condition setting data 76 set by the setting means 68, the water of the tank body 4A, to the flush toilet to which the tank body 4A is attached among the plurality of types of flush toilets 2 Supply.

  The acquisition unit 64 includes, for example, the control device 26. The acquisition means 64 acquires information on the flush toilet attached with the tank body 4A among the plurality of types of flush toilets 2.

  The determination means 66 includes, for example, the control device 26. The determination means 66 determines the type of the flush toilet to which the tank body 4A is attached based on the information acquired by the acquisition means 64. For example, the discrimination means 66 discriminates the type of the flush toilet with reference to the feature information (discrimination reference table 72) of the flush toilet corresponding to each type of flush toilet stored in advance.

  The setting means 68 includes, for example, the control device 26. The setting unit 68 sets the supply condition of the supply unit 62 to one suitable for the type of the flush toilet determined by the determination unit 66. For example, the setting means 68 refers to the supply condition of the flush toilet corresponding to the type of flush toilet 2 stored in advance, and the flush corresponding to the type of flush toilet determined by the determination means 66. The toilet supply conditions are extracted, and the extracted supply conditions are set.

――― Processing of each functional configuration ―――
Next, processing of each functional configuration will be specifically described.

  FIG. 8 is a flow chart showing the flow of each processing of the acquisition means 64, the judgment means 66 and the setting means 68 in the processing of each functional configuration.

(Step SP10)
The acquisition means 64 determines whether or not the completion of the construction of the flush toilet has been completed. The acquisition means 64 proceeds to the process of step SP12 when the determination is affirmative (Yes), and returns to the process of step SP10 when the determination is negative (No).
In the first embodiment, the above-mentioned "construction" is, for example, in the flush toilet 2A shown in FIG. 2A, the old water storage tank already attached is removed and can be attached to the flush toilet 2 of a plurality of types. Installation of a new water storage tank 4, replacement of the water storage tank. However, the water storage tank 4 may be newly attached to the flush toilet 2A where the water storage tank is not attached. Further, the following process is the same even if the water storage tank 4 is replaced or mounted on the flush toilet 2B or 2C.
In addition, the detection switch (not shown) which protruded from the water storage tank 4 when the water storage tank 4 was attached by pressing of arbitrary pushbuttons (not shown) manually by a construction person whether construction was completed or not Is determined by an automatic pressing or the like by contact with the flush toilet 2A.

(Step SP12)
The acquisition means 64 acquires, for example, the pressure loss of the flush toilet 2A as information related to the flush toilet 2A to which the water storage tank 4 is attached.

  FIG. 9 is a flowchart of a subroutine related to pressure loss acquisition in step SP12 shown in FIG. FIG. 10 is a time chart showing the operation of the acquisition means 64.

(Step SP12A)
The acquisition means 64 performs a cleaning test. In this cleaning test, even if any one of the cleaning mode switching button (not shown) of the large cleaning mode, the small cleaning mode, and the eco small cleaning mode of the operation button 46 is pressed at time t1 in FIG. It turns on. Further, at time t1 in FIG. 10, the water supply valve 30 is opened, water is supplied to the tank main body 4A, and after the float switch 24 is turned on, the water supply valve 30 is closed for a predetermined time to stop water supply. Thereafter, at time t2 in FIG. 10, the water supply valve 30 is opened again.
Similarly, water supply is also performed between step SP12B and step SP12C (predetermined time immediately before time t6 in FIG. 10) and between step SP12C and step SP12D (predetermined time immediately before time t10 in FIG. 10). The valve 30 closes for a predetermined time to stop the water supply.
That is, each of steps SP12A, SP12B, SP12C, and SP12D is executed, and the water supply valve 30 is closed for a predetermined time to stop the water supply device 20 before the predetermined measurement is performed by the timing device 48. By starting operation and supplying wash water into the tank body 4A, the behavior of the constant flow rate valve 34 on the upstream side of the water supply device 20 is stabilized until time t13 in FIG. 10 to suppress the variation of the flow rate.

(Step SP12B)
The acquisition means 64 calculates the first water supply flow rate Q1 supplied to the tank main body 4A from the water supply port 32 of the water supply device 20.

  A method of calculating the first feed water flow rate Q1 will be described with reference to FIG. 1, FIG. 4 and FIG.

  The water supply valve 30 is opened for a predetermined time while the drainage device 22 closes the drainage port 18 at time t1 in FIG. 10, and water is supplied from the water supply port 32 into the tank body 4A for a predetermined time. Before t2, the water level in the tank body 4A rises to the water level (water stop water level WL) in contact with the float switch 24. Then, when the float switch 24 is turned on and then the water supply valve 30 is closed for a predetermined time, the drainage device 22 is driven at time t2 in FIG. 10 to open the drainage port 18, and the water level in the tank body 4A falls. At time t3 in FIG. 10, the float switch 24 is turned off.

  In addition, even when water supply is continued by the water supply device 20, the speed at which the water level in the tank body 4A falls is significantly higher than the speed at which the water level rises by water supply, so the water level in the tank body 4A is empty ( It will be in the state of DWL2 = 0) (refer DWL2 of FIG. 1). Thereafter, at time t4 in FIG. 10, the drainage device 22 closes the drainage port 18 again when the water level in the tank body 4A is empty (DWL2 = 0).

At this time, at time t4 in FIG. 10, the drainage device 22 closes the drainage port 18 at the same time as the timing device 48 of the control device 26 controls the water level in the tank body 4A to an initial water level before the start of cleaning from time t4 The water level rise time T1 (= t5-t4) until time t5 when the water level rises to WL) is measured (see T1 in FIGS. 1 and 10). At time t5 in FIG. 10, the float switch 24 is turned on from off.
In the first embodiment, the water level rise time T1 (= t5-t4) from the time t4 to the time t5 when the water level in the tank body 4A rises to the initial water level (water stop water level WL) before the start of washing is measured. However, it is also possible to measure the rise time of the water level up to a predetermined water level lower than the initial water level or a predetermined water level higher than the initial water level instead of the initial water level.

Then, the acquisition means 64 reads out, from the pressure loss calculation data 70, a first relational expression R1 between the water level rise time T1 of the water storage tank experimentally determined in advance and the first water supply flow rate Q1 of the water supply device. Here, as shown in FIG. 4, assuming that the water level rise time T1 measured by the timer 48 from time t4 to time t5 in FIG. 10 is a [s], this water level rise time T1 (= a [s ] Is applied to the first relational expression R1, the first feed water flow rate Q1 (= b [L / min]) is calculated, and the calculated data is temporarily stored.
The first water supply flow rate Q1 calculated by applying the water level rise time T1 measured by the timer 48 to the first relational expression R1 is also calculated from the measured water level rise time T1 and the capacity of the tank body 4A. be able to.

(Step SP12C)
The acquisition means 64 calculates the pressure loss of the flush toilet 2A.

  The method of checking the pressure loss of the flush toilet 2A will be specifically described with reference to FIG. 1, FIG. 5 and FIG.

  As preliminary preparation, the acquisition means 64 reads out the relational expression R2 between the first water supply flow rate Q1 of the water supply apparatus 20 experimentally determined in advance and the water level rise time T2 of the tank body 4A among the pressure loss calculation data 70. Then, as shown in FIG. 5, when the storage tank 4 is applied to the standard toilet, the acquiring means 64 applies the first feed water flow rate Q1 (= b [) of the flush toilet 2 calculated in FIG. Apply L / min]). As a result, the drainage device 22 is driven for a predetermined time to drain the washing water, and then the dead water level DWL1 in the tank body 4A in the state where the drainage device 22 is closed is increased to the initial water level WL before the start of washing. The water level rise time T2 (= c [s]) is calculated in advance.

In step SP12C after time t5 in FIG. 10, the water supply valve 30 is closed for a predetermined time immediately before time t6, and the water supply valve 30 is opened again at time t6, and the drainage device 22 is driven again to drain the water. 18 is opened at temporary valve opening time. Then, the water level in the tank body 4A drops, and the float switch 24 is turned off at time t7 in FIG. Then, when the drainage device 22 closes the drainage port 18 at time t8 in FIG. 10, the dead water level DWL1 in the water storage tank 4 is determined, and cleaning corresponding to the difference between the stop water level WL of the tank body 4A and the dead water level DWL1. The amount of water, that is, the amount of flush water drained from the tank body 4A to the water conduit 8 of the flush toilet 2 is calculated. At the same time, the time t9 when the water level in the tank body 4A rises from the dead water level DWL1 at time t8 to the initial water level before the start of cleaning (water stop level WL) as a part of the acquisition means 64 The water level rise time T3 (= t9-t8) up to is measured (see T3 in FIG. 1).
In the first embodiment, the water level rise time T3 (= t9 to t8) from time t8 to time t9 when the water level in the tank body 4A rises to the initial water level (water stop water level WL) before the start of washing is measured. However, instead of the initial water level, it is also possible to measure the water level rise time up to the time when the predetermined water level lower than the initial water level or the predetermined water level higher than the initial water level is raised.

  Next, the acquiring means 64 takes the pressure loss coefficient K as the ratio (T3 / T2) between the water level rise time T3 of the flush toilet 2A measured by the clocking device 48 and the water level rise time T2 of the reference toilet calculated in FIG. After the calculation, step S12C in FIG. 9 ends.

Here, in consideration of the fact that the capacity of the tank body 4A of each of the flush toilet 2A and the reference toilet and the first feed water flow rate Q1 are common to each other, the pressure loss coefficient K is larger than "1". Since the water level rise time T3 of the flush toilet 2A is longer than the water level rise time T2 of the reference toilet, the dead water level DWL1 is lower in the flush toilet 2A than in the reference toilet, and the tank body 4A to the flush toilet 2A It can be confirmed that the pressure loss of the flush toilet 2A is smaller than the pressure loss of the standard toilet by the amount of the flush water discharged.
On the other hand, when the pressure loss coefficient K is “1”, it can be confirmed that the pressure losses of the flush toilet 2A and the reference toilet are equal to each other, and when the pressure loss coefficient K is smaller than “1” It can be confirmed that the pressure loss of the toilet bowl 2A is larger than the pressure loss of the standard toilet bowl.

(Step SP12D)
The water supply valve 30 is closed for a predetermined time immediately before time t10 by the acquiring means 64, and the water supply valve 30 is opened again at time t10. Then, again, the second water supply flow rate Q2 supplied to the tank main body 4A from the water supply port 32 of the water supply device 20 is calculated in the same process as step S12B described above. Specifically, the drainage device 22 is driven at time t10 in FIG. 10 to open the drainage port 18, the water level in the water storage tank 4 is lowered, and the float switch 24 is turned off at time t11 in FIG.

  In addition, although the water supply by the water supply device 20 is continued, the water level in the tank body 4A is much higher than the speed at which the water level in the tank body 4A falls, so the water level in the tank body 4A is empty (DWL2 = State 0) (see DWL2 in FIG. 1). Thereafter, at time t12 in FIG. 10, the drainage device 22 again closes the drainage port 18 in a state where the water level in the tank body 4A is empty (DWL2 = 0), and at the same time The timing device 48 measures the water level rise time T5 (= t13-t12) from the time t12 to the time t13 when the water level in the tank body 4A rises to the initial water level (water stop water level WL) before the start of washing (Figure 1 and T5 of FIG. 10)). Further, at time t13 in FIG. 10, the float switch 24 is switched from off to on, the water supply valve 30 is closed, and the water supply by the water supply device 20 is stopped.

  Then, the water level rise time T5 measured by the timing device 48 from time t12 to time t13 in FIG. 10 is applied to the first relational expression R1 shown in FIG. 4 to calculate the second water supply flow rate Q2.

(Step SP12E)
The acquisition means 64 compares the second feed water flow rate Q2 with the first feed water flow rate Q1 calculated and stored in step S12B of FIG. 9, and determines whether or not the difference between the two is within a predetermined range. Then, the acquisition means 64 proceeds to the processing of step SP12F when the positive determination is made, and returns to the processing of step SP12A when the negative determination is made.

(Step SP12F)
The acquiring unit 64 determines the pressure loss coefficient K calculated in step SP12C, acquires this, and passes it to the discriminating unit 66.

(Step SP14)
The determination means 66 determines the type of the flush toilet 2A based on the information concerning the flush toilet 2A passed from the acquisition means 64. The information used for determination is one of the pressure loss coefficients K when not passing through step SP18 described later, and two or more types including the information of the pressure loss coefficient K when passing through step SP18 described later It becomes.

  Specifically, with reference to the discrimination reference table 72, the discrimination means 66 compares the information concerning the flush toilet 2A passed from the acquisition means 64 with the fields in the discrimination reference table 72 corresponding to this information. The identification of the type of the flush toilet 2A is performed by specifying the serial number of the field that matches the information related to the flush toilet 2A passed from the acquisition means 64.

  However, the determination may not be possible only with the information related to the flush toilet 2A passed from the acquisition means 64. For example, since the pressure loss coefficient K does not overlap with the pressure loss coefficients K of other serial numbers between "0.9" and "1.1" in the serial number "4" in FIG. Although "4" can be specified, since the pressure loss coefficient K overlaps with the pressure loss coefficient K of other serial numbers in serial numbers other than "4," serial numbers other than "4" are specified in the pressure loss coefficient K alone Can not do it.

(Step SP16)
Therefore, the determination means 66 proceeds to the process of step SP18 when the determination is impossible, and proceeds to the process of step SP20 when the determination is not possible.

(Step SP18)
The acquiring means 64 automatically acquires information related to the flush toilet 2A other than the pressure loss coefficient K, for example, the parameters shown in FIG. Since acquisition of this parameter is performed by a known method using, for example, the timer 48 or a sensor, the description thereof is omitted.

(Step SP20)
The setting means 68 sets the supply condition of the supply means 62 to one suitable for the type based on the type of the flush toilet 2A determined by the determination means 66.

  Specifically, the setting unit 68 refers to the supply condition reference table 74 to acquire the type of the flush toilet 2A determined by the determination unit 66, that is, the supply condition corresponding to the serial number of the flush toilet 2A. Then, the setting means 68 sets the toilet flush water amount, the refill water amount, the total flush water amount, etc. among the acquired supply conditions as it is as the supply condition setting data 76 to be referred to when the supply means 62 supplies. Further, the setting unit 68 sets, for example, a value calculated based on the condition among the acquired supply conditions as the supply condition setting data 76.

  For example, for the third relational expression, the setting unit 68 calculates the valve opening time T4 of the drainage device 22 by substituting the pressure loss coefficient K acquired in step SP12 into the third relational expression. The third relational expression is, for example, a proportional expression R3 shown in FIG. 11 (hereinafter referred to as “third relational expression R3”). In FIG. 11, assuming that the calculated pressure loss coefficient K is a constant d, it is substituted into the third relational expression R3, and the valve opening time T4 of the drainage device 22 is calculated as e [s], and this calculation is performed. Data is set as supply condition setting data 76.

(Step SP22)
The setting means 68 is opened when the calculated valve opening time T4 falls below a predetermined minimum valve opening time T4min or exceeds a predetermined maximum valve opening time T4max as shown in FIG. It determines that the valve time T4 is an abnormal value, controls the annunciator 50 as an informing means, and informs the installer that the appropriate setting is not performed, and the setting means 68 is a flush toilet 2A. Set a predetermined feed water flow rate that can ensure the cleaning capacity in consideration of pressure loss. Then, again, the valve opening time T4 of the drainage device 22 is determined in step S20 of FIG. 8 re-executed from step SP12 of FIG. 8 and thereafter re-executed.
On the other hand, when the opening time T4 is within the range between the minimum opening time T4min and the maximum opening time T4max, the setting is completed, and the essential toilet flushing operation is possible thereafter. Since the flush toilet 2A and the water storage tank 4 are substantially usable, the setting unit 68 determines that the value is normal, controls the alarm 50, and indicates that the setting is completed. Alert to

---effect---
As described above, in the water storage tank 4 according to the first embodiment, since the tank body 4A is freely attachable to the plurality of types of flush toilets 2, the reservoir tank is common to the plurality of types of flush toilets 2 Since it is possible to replace the water storage tank 4 only, the type of the existing flush toilet 2A does not need to be checked on the site by checking the serial number of the existing flush toilet 2A used by the builder as it is. Since it is possible to order a common water storage tank 4 suitable for the above, it is possible to reduce the time and labor required for the installation of the water storage tank 4.
Further, in the water storage tank 4 according to the first embodiment, the tank body 4A is based on the acquisition means 64 for acquiring information related to the flush toilet to which the tank body 4A is attached and the information acquired by the acquisition means 64. Since the determination means 66 for determining the type of the flush toilet bowl 2A attached is provided, when setting the supply conditions, the builder automatically looks at the flush toilet bowl 2A and does not know the type. The type of flush toilet 2A is determined. Then, in the water storage tank 4, the setting means 68 sets the supply condition of the supply means to a suitable one for the type based on the type of the flush toilet 2A determined by the determination means 66. The labor of the installer is saved, and the time taken for the preparation of the water storage tank 4 can be shortened. In addition, since the setting unit 68 performs the setting without performing the setting manually, the erroneous setting of the water supply condition can be suppressed.
Therefore, according to the water storage tank 4 which concerns on the 1st embodiment of this invention, while shortening the time concerning installation of the water storage tank 4, the incorrect setting of the supply conditions of water can be suppressed.

  Further, the acquiring means 64 acquires the pressure loss (pressure loss coefficient K) of the flush toilet 2A based on the water level rise time which is a measurement time related to the change of the water level in the tank main body 4A. The type of the flush toilet 2A can be determined based on the pressure loss calculated by the acquisition means 64. Here, since the pressure loss is likely to vary depending on the type of flush toilet, if the discrimination means 66 discriminates the type of flush toilet 2A based on the pressure loss, it is determined based on other information related to flush toilet 2A. In comparison with the above, the flush toilet 2A can be determined more accurately.

  In addition, in the water storage tank 4 according to the first embodiment, the acquisition unit 64 performs the process 2 as information related to the flush toilet 2A to which the water storage tank 4 is attached by going through step SP16 and step SP18 shown in FIG. Since more than types of information are acquired, the determination means 66 can determine the flush toilet 2A that can not be distinguished by only one type of information.

Second Embodiment
Next, a water storage tank according to a second embodiment of the present invention will be described.

  In the first embodiment, the case where the acquisition means 64 automatically acquires all the information related to the flush toilet 2A attached with the water storage tank 4 has been described, but in the second embodiment, all or part of the information is manually input. The case where it acquires by being done is explained.

  The configuration of the water storage tank according to the second embodiment is the same as the configuration of the water storage tank 4. However, the acquisition means 64 includes an input means by which part of the information related to the flush toilet 2A is manually input.

The input means may be provided to the tank body 4A or may be provided at a location away from the tank body 4A. In the second embodiment, the input means is also used as a remote control switch, which is an input means of a remote control device (not shown) for remotely controlling the flush toilet 2A and the water storage tank 4, for example.
The information related to the flush toilet 2A input by the input means is not particularly limited, but it is preferable that the information can be confirmed visually by the installer (person). The information which can be confirmed visually is, as shown in FIG. 6, the shape of the flush toilet 2, the presence or absence of the siphon type, the size of the reservoir surface, and the like.

  Although the process of the water storage tank which concerns on the 2nd Embodiment of this invention is the same as the process of the water storage tank 4 which concerns on 1st Embodiment shown in FIG. 8, only the process of step SP18 differs.

  In step SP18, the acquisition means 64 displays on the display screen of the remote control device that the builder is urged to make an input. Then, when there is an input, the acquisition means 64 acquires it as other information (input information) of the information related to the flush toilet 2A to which the water storage tank 4 is attached.

  In step SP14 continuing from step SP18, the determination means 66 determines the type of the flush toilet 2A to which the water storage tank 4 is attached, based on the pressure loss coefficient K and the input information acquired by the acquisition means 64.

  As described above, according to the water storage tank according to the second embodiment, even if the part number of the flush toilet 2A disappears from the flush toilet 2A and can not be confirmed, the appearance and introspection of the flush toilet, the size of the flush water surface, water Information concerning the flush toilet 2A, such as how to supply it, can be known by the builder if they go to the site, so the builder can input such information by the input means, and the discrimination means 66 flush The type of the toilet bowl 2A is determined, and the supply condition is set by the setting means 68. Thus, the acquisition means 64 can be configured without newly providing a sensor or the like for automatically acquiring information on the flush toilet 2A. Further, even if there is a sensor or the like, if there is an input unit in addition to this, the determination unit 66 can make the determination based on a plurality of pieces of information, so it is possible to more accurately determine the flush toilet 2A. .

Third Embodiment
Next, a water storage tank according to a third embodiment of the present invention will be described.

  In the first embodiment, the case is described where the acquisition means 64 acquires the pressure loss coefficient K etc. as the information related to the flush toilet 2A to which the water storage tank 4 is attached, but the flush toilet 2A as the information according to the flush toilet 2A A case will be described where identification information indicating the type of F is acquired.

  The configuration of the water storage tank according to the third embodiment is the same as the configuration of the water storage tank 4. However, a plurality of types of flush toilets 2 to which the water storage tank 4 can be attached are respectively provided with tags in which identification information is embedded. The location for applying the tag is not particularly limited, but is preferably the upper surface or the back surface of the flush toilet 2A to which the water storage tank 4 is attached from the viewpoint of readability.

  In the process of the water storage tank according to the third embodiment, steps SP12, SP16, and SP18 are omitted in the process of the water storage tank 4 according to the first embodiment shown in FIG. Also, instead of step SP12, the acquisition means 64 includes a reader capable of reading a tag, and is attached when the tank body 4A is attached to any of a plurality of types of flush toilets 2. By reading the flush toilet bowl tag, identification information (ID) as information related to the flush toilet bowl is acquired.

  Then, in step SP14, the determination means 66 refers to the identification information reference table 80 in which serial numbers and IDs are associated as shown in FIG. 12 instead of the discrimination reference table 72 shown in FIG. Identify the type of flush toilet by identifying.

  As described above, according to the water storage tank according to the third embodiment, since the acquiring unit 64 acquires the ID of the flush toilet, the discrimination can be made by referring to the identification information reference table 80 only once, and the discrimination of the discrimination unit 66 is It will be easier and more accurate. When the ID itself indicates the type of flush toilet, the determination can be made only by receiving the ID, without referring to the identification information reference table 80.

Fourth Embodiment
Next, a water storage tank according to a fourth embodiment of the present invention will be described.

  In the first embodiment, the setting means 68 uses the time when the set valve opening time T4 of the drainage device 22 is appropriate, and the process shown in FIG. 8 to calculate the pressure loss again when not appropriate. In the fourth embodiment, the case where the set valve opening time T4 of the drainage device 22 is corrected will be described.

  The configuration of the water storage tank according to the fourth embodiment is the same as the configuration of the water storage tank 4. Further, in the processing of each functional configuration of the water storage tank according to the fourth embodiment, the flow of each processing of the acquiring unit 64, the discriminating unit 66 and the setting unit 68 is also the processing shown in FIG. 8 and FIG. It is similar to the flow.

  However, since the constant flow valve 34 used for the water storage tank 4 is used for the first time in step SP12 where water supply is performed after construction, there is a possibility that the constant flow valve 34 is not compatible with the water supply pipe 28 Yes, the valve opening time T4 set in step SP20 in FIG. 8 is corrected based on the change in flow rate characteristics in step SP12B, step SP12C, and step SP12D in FIG. 9 and FIG. 10 described above. Execute control.

  FIG. 13 is a diagram showing the relationship between the water supply time and the water supply flow rate. In FIG. 13, the average feed water flow rate obtained by dividing the total feed water flow rate at the detection times T1, T3 and T5 of step SP12B, step SP12C and step SP12D by the respective detection times T1, T3 and T5 is shown as the feed water flow rate.

  As shown in FIG. 13, if the constant flow valve 34 at the initial stage of construction completion is not familiar, for example, it will become familiar by using step SP12B, step SP12C, and step SP12D, and it will be a predetermined water supply period along with adaptation. The fluctuation of the water supply flow rate in each of the detection times T1, T3 and T5 is suppressed, and as a result, the average water supply flow rate decreases. In other words, the first feed water flow rate Q1 at step SP12B which is the basis of the pressure loss calculation may be different from the third feed water flow rate Q3 at step SP12C at the time of subsequent pressure loss calculation. In such a case, it may occur even if the set valve opening time T4 of the drainage device 22 is not appropriate.

  Therefore, in the fourth embodiment, the valve opening time T4 of the drainage device 22 is corrected by performing a plurality of processes in step SP20 shown in FIG.

  FIG. 14 is a flowchart of a subroutine related to the supply condition setting of step SP20 shown in FIG. 8. A plurality of processes performed in FIG. 14 will be described below.

(Step SP20A)
The setting means 68 sets the supply condition of the supply means 62 to one suitable for the type based on the type of the flush toilet 2A determined by the determination means 66.

  Specifically, the setting unit 68 refers to the supply condition reference table 74 to acquire the type of the flush toilet 2A determined by the determination unit 66, that is, the supply condition corresponding to the serial number of the flush toilet 2A. Then, the setting means 68 sets the toilet flush water amount, the refill water amount, the total flush water amount, etc. among the acquired supply conditions as it is as the supply condition setting data 76 to be referred to when the supply means 62 supplies. Further, the setting unit 68 sets, for example, a value calculated based on the condition among the acquired supply conditions as the supply condition setting data 76.

  For example, for the third relational expression, the setting unit 68 calculates the valve opening time T4 of the drainage device 22 by substituting the pressure loss coefficient K acquired in step SP12 into the third relational expression. The third relational expression is, for example, a proportional expression R3 shown in FIG. 11 (hereinafter referred to as “third relational expression R3”). In FIG. 11, assuming that the calculated pressure loss coefficient K is a constant d, it is substituted into the third relational expression R3, and the valve opening time T4 of the drainage device 22 is calculated as e [s], and this calculation is performed. Data is set as supply condition setting data 76.

(Step SP20B)
The acquisition means 64 uses the first water supply flow rate Q1 and the second water supply flow rate Q2 under the situation where the valve opening time T4 is set, and the tank body 4A is supplied from the water supply port 32 of the water supply device 20 in step SP12C. The third feed water flow rate Q3 to be supplied is estimated. This estimation can be, for example, an intermediate value (average value) of the first feed water flow rate Q1 and the second feed water flow rate Q2, and is set in advance as an approximation of the change in the flow rate characteristic shown in FIG. It is also possible to calculate by applying to the above-mentioned equation.

(Step SP20C)
The setting means 68 calculates the difference between the third feed water flow rate Q3 and the feed water flow rate Q1 as the feed water flow variation D1.

(Step SP20D)
The setting means 68 corrects the valve opening time T4 of the drainage device 22. The correction method is not particularly limited as long as the valve opening time T4 is a more appropriate value, but as one example, α is added to the set T4 (T4 = T4 + α). This α is expressed by, for example, a relational expression such as α = −c × D1 + d. In the relational expression of this example, c and d are constants set in advance for the flush toilet 2A being used, and are stored in the supply condition reference table 74 shown in FIG. The setting means 68 reads out the constant corresponding to the flush toilet 2A determined to be used from the supply condition reference table 74 and uses it.

  As described above, according to the water storage tank according to the fourth embodiment, the target (appropriate) valve opening time T4 and the cleaning are performed even when the water supply flow rate is repeatedly changed plural times for the pressure loss determination. You can set the amount of water.

  Further, by correcting the valve opening time T4, it is possible to reduce the probability of re-execution (pressure loss learning re-execution) from step SP12 of FIG. 8 in step SP22. Therefore, in the fourth embodiment, the process can be simplified by deleting the process of step SP22.

<Modification>
Although the embodiments of the technology disclosed in the present application have been described above, the technology disclosed in the present application is not limited to the above.

  For example, in the description of FIG. 9 of the first embodiment, the pressure loss coefficient K is calculated based on the water level rise time, but based on the measurement time related to the change of the water level in the tank body 4A, in particular, It is not limited, for example, it may be calculated based on the water level fall time until the water level in the tank body 4A falls from the initial water level before the start of cleaning to the predetermined water level.

  Further, in the description of FIG. 9 of the first embodiment, when the flow rate of the water supplied to the tank main body 4A by the water supply device 20 does not vary, the stable flow rate is always guaranteed. Each of the step of confirming the feed water flow rate Q1 and the step of confirming the second feed water flow rate Q2 of step SP12D may be omitted.

  Moreover, although the notification means demonstrated the case where it was the alerting device 50 which blinks LED indicator etc. and it alert | reported, changing a color and notifying without blinking, alerting | reporting by sound, smell vibration, mail etc. You may

  Further, the notification means may notify the builder by displaying the contents of the supply condition set by the setting means 68 on the display means of the remote control device or transmitting it by e-mail in step SP22, for example. Similarly, in step SP14, the notification means may notify the builder of the type of the flush toilet determined by the determination means 66 by, for example, displaying it on the display means of the remote control device or transmitting it by e-mail.

  The determination reference table 72 and the supply condition reference table 74 may be a table together. Further, the contents in the determination reference table 72 and the supply condition reference table 74 may not be described in a table format.

  In the fourth embodiment, correction of the valve opening time T4 has been described on the premise that the water storage tank 4 includes the constant flow rate valve 34. However, the valve of the water storage tank 4 is not limited to the constant flow rate valve 34.

  The elements included in the above-described embodiments can be combined as far as technically possible, and combinations of these are included in the scope of the present invention as long as they include the features of the present invention.

2, 2A, 2B, 2C ... flush flush toilet 4 ... water storage tank 4A ... tank body 34 ... constant flow valve (valve body)
62 ... supply means 64 ... acquisition means 66 ... discrimination means 68 ... setting means

Claims (7)

A tank body that stores water and can be attached to multiple types of flush toilets,
Supply means for supplying the water of the tank body to the flush toilet provided with the tank body among the plurality of types of flush toilets based on the supply condition set;
Acquisition means for acquiring information relating to the flush toilet attached with the tank body;
A determination unit configured to determine the type of the flush toilet based on the information acquired by the acquisition unit;
Setting means for setting the supply condition of the supply means to a type suitable for the type based on the type of the flush toilet determined by the determination means ;
The acquisition means is a water storage tank for acquiring a pressure loss of the flush toilet based on a measurement time according to a change in water level in the tank body . A valve body for adjusting the amount of water supplied to the tank body;
After the setting of the supply condition, the setting means calculates a fluctuation amount of the water supply flow rate due to the use of the valve body, and sets the supply condition.
The water storage tank according to claim 1 . The supply conditions include the supply time of the supply means,
The acquisition means acquires one water supply flow rate based on the measurement time, and after setting the supply time, acquires the other water supply flow rate by use of the valve body,
The setting means calculates a difference between the other feed water flow rate and the one feed water flow rate to calculate the fluctuation amount, and sets the supply time calculated based on the fluctuation amount.
The water storage tank according to claim 2 . The acquisition means acquires two or more types of information as the information related to the flush toilet.
The water storage tank according to any one of claims 1 to 3 . The acquisition means includes an input means into which part of the information related to the flush toilet is manually input.
The water storage tank according to any one of claims 1 to 4 . Each of the plurality of types of flush toilets has a tag embedded with identification information,
The acquisition means acquires the identification information as the information related to the flush toilet by reading the tag when the tank body is attached to the flush toilet.
The water storage tank according to claim 1. The determination means and the setting means refer to reference information for each type of flush toilet stored in advance during each process.
The water storage tank according to any one of claims 1 to 6 .

Images