JP2013104281A - Flush toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flush toilet bowl which suppresses generation of urinary calculus without flowing a large amount of water.SOLUTION: A flush toilet bowl includes: a flush toilet bowl body 3; a drain pipe 51 for guiding discharge water of the toilet bowl to a pipe on the downstream side; a connection pile 41 for connecting the flush toilet bowl body 3 and the drain pipe 51; and liquid discharge means 131 for discharging liquid while targeting at least the connection pile 41. The liquid discharge means 131 is installed inside the flush toilet bowl body 3.

Description

  The present invention relates to a flush toilet bowl.

  In a urinal, flush water is flushed after a person's use to wash away urine. In the conventional urinal, a washing-off method is adopted in which water falls from the upper part of the urinal and travels along the ball surface together with the urine, and then flows toward the drain pipe via the trap. However, in the washing-off method, since the amount of washing water is small, the efficiency of discharging urine from the urinal to the drain pipe is poor.

  On the other hand, a small amount of urine remains in the urinal even after the urine is flushed with washing water. Residual urine becomes a source of bacterial growth, generates slimy and colored stains, and further causes odor. In addition, insoluble urine stones may be formed in the connecting path connecting the trap of the urinal and the drain pipe due to phosphate ions and calcium ions in the urine remaining in the urinal. When urine stones are formed, the connecting path becomes narrow. And once attached urine stone is difficult to remove unless it is rubbed strongly with a brush. Moreover, in order to sufficiently remove urinary stones, it is necessary to ask a specialized trader, which is a burden on the person who manages the urinal.

Therefore, in order to increase the discharge efficiency, it has been required to increase the flow rate of the washing water to flow urine and suppress the generation of urinary stones.
However, even if the amount of wash water is increased, in the flush toilet, the instantaneous drainage amount of the trap does not change, and a lot of water flows to the place where urine stones are not generated. Will be used.

JP 2002-106049 A

  This invention is made | formed in view of the said situation, and makes it a subject to suppress generation | occurrence | production of urolith even if it does not flow a lot of water.

Therefore, the flush toilet of the present invention employs the following means.
That is, a flush toilet body, a drain pipe that guides toilet drainage to a downstream pipe, a connecting pipe that connects the flush toilet body and the drain pipe, and a liquid that discharges liquid targeting at least the connecting pipe Discharge means.
The liquid discharge means is installed inside the flush toilet body.

The present invention is also a method for cleaning a flush toilet. The features are as follows. That is, a step in which the computer receives a signal indicating whether or not the wash water is flowing from the input interface, a step in which the timer is activated when it is determined that there is a sink, and a first predetermined time has elapsed from the start of the timer operation. Determining whether or not the first predetermined time has elapsed, discharging the liquid to a predetermined location in the traveling direction of the cleaning water, and a second predetermined after discharging the liquid And a step of stopping the discharge when time elapses, and a method of cleaning the flush toilet.

  Furthermore, the present invention is a method for washing a flush toilet, wherein the computer detects a current time, determines whether the timer has passed a predetermined time, and the timer is the predetermined time. When the time has passed, a step of discharging the liquid to a predetermined location in the traveling direction of the washing water of the flush toilet, and a step of determining whether a predetermined time has elapsed after the discharge of the liquid; And a step of stopping the discharge when a predetermined time has elapsed after the discharge of the liquid.

In addition, the present invention is a method for cleaning a flush toilet, wherein the computer comprises:
Receiving from the input interface a signal indicating the presence or absence of wash water flow, discharging liquid to a predetermined location in the direction of travel of the wash water, and whether or not a predetermined time has elapsed after the liquid discharge. A method of cleaning a flush toilet that performs the step of determining and the step of stopping the discharge when a predetermined time has elapsed after the discharge of the liquid.

And this invention is the method of washing the flush toilet bowl, Comprising:
Receiving a signal indicating the presence or absence of a wash water sink from an input interface; counting the number of sinks; determining whether the number of sinks exceeds a predetermined number; and determining that the predetermined number has been exceeded. Then, a step of discharging the liquid to a predetermined location in the traveling direction of the cleaning water, a step of determining whether or not a predetermined time has elapsed after the discharge of the liquid, and a step of stopping the discharge are executed. This is a method of cleaning a flush toilet.

  According to the present invention, in a flush toilet, the generation of urinary stones can be easily suppressed without flowing a large amount of water.

It is a perspective view which shows an example at the time of applying the toilet bowl of this invention to a flush toilet bowl. It is a front view of FIG. It is a longitudinal cross-sectional view of FIG. It is a principal part enlarged view of FIG. It is a block diagram of a flush toilet bowl. 3 is a flowchart of the first embodiment. 10 is a flowchart of Example 2. 10 is a flowchart of Example 3. 10 is a flowchart of Example 4.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as embodiments) will be exemplarily described based on examples. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified.

  With reference to FIGS. 1-6, it demonstrates about the case where the invention which concerns on Example 1 is applied to the flush urinal (henceforth, urinal 1). The urinal 1 is classified into a floor type (stall type), a large size, a medium size, and a small size. The urinal 1 according to the present embodiment is a large urinal installed in a state of being separated upward from the floor surface (see FIGS. 1 to 3).

  The urinal 1 includes a urinal body 3 that receives discharged urine, a case body 5 that surrounds the urinal body 3, an excretion facility 7 that excretes the urine discharged to the urinal body 3, and deodorization. And a device 8 (see FIGS. 1 and 3).

  The toilet body 3 is a sanitary ware used for excretion of urine. In addition, the toilet user can use the urinal 1 while standing. The toilet body 3 includes a receiving surface portion 31 which is a portion that is erected on the front surface of the user and receives urination, a drooping receiving portion 34 that receives urine hanging from the penis of the toilet user, and a ball portion 32 (see FIG. 1, 2, 3).

  The receiving surface portion 31 has a substantially flat surface shape, and has a front shape that is an ellipse that is vertically long (see FIG. 2). Moreover, the receiving surface part 31 has the water supply part 35 which supplies the wash water for flowing urine in the top vicinity (refer FIG. 2, FIG. 3). The water supply unit 35 is connected to an external water supply pipe (not shown). And the said water supply part 35 supplies the water supplied from the said external water supply pipe in the toilet bowl main body 3, and thereby wash | cleans the receiving surface part 31 and the ball | bowl part 32. FIG. A water flow sensor 132 (see FIGS. 3 and 5) is provided in front of the water supply unit 35. There are two types of water flow sensors: a type in which a magnet is moved by a water flow and detected by a reed switch (flow water switch), and a type in which the amount of water is also detected by a propeller or a water wheel (water amount sensor).

The drooping receiving portion 34 is formed continuously with the receiving surface portion 31 and below (see FIG. 3), and protrudes toward the user side. For this reason, the urine dripping from the penis of the toilet user can be received by the urinal 1 without dropping it on the toilet installation surface.
Moreover, the ball | bowl part 32 (refer FIG. 2, FIG. 3) is formed continuously with the receiving surface part 31, and has the shape similar to the ball | bowl which is a container for cooking (refer FIG. 3).

  The case body 5 (see FIGS. 1 to 3) surrounds the toilet body 3 as described above. Specifically, the receiving surface part 31 of the toilet body 3, the ball part 32 including the sagging receiving part 34, the drain port 36 located at the lowest part of the ball part 32 (see FIGS. 2 and 3), the drain port The case body 5 covers the drain trap 13 connected to 36 (see FIG. 2) and the odor discharge pipe 100 (see FIG. 3) which is a pipe for discharging odor to the outside. Further, the bottom surface of the case body 5 is separated from the floor surface and forms a space SP between the floor surface (see FIGS. 2 and 3).

  When the toilet body 3 is covered (enclosed) by the case body 5, a space S is defined inside the toilet body 3 and the case body 5 (see FIG. 2). The shape of the space S is a shape defined by the inner surface of the case body 5 and the outer surface of the toilet body 3 when the toilet body 3 is covered with the case body 5. The space S has a volume large enough to accommodate at least the ball portion 32 and the drain trap 13 located below the ball portion 32.

  And the opening O which leads to the floor surface of a toilet is formed in the case body 5 at the bottom part (refer FIG. 1, 2). Since the bottom surface of the case body 5 is separated from the floor surface by the space SP as described above, the opening O is also located at a predetermined height from the floor surface. The opening O may have any shape, but it is preferable that the opening O be as wide as possible toward the lower surface of the case body 5.

  Here, in the state where the toilet user faces the urinal 1, the near side is referred to as the back, and the other side is referred to as the front. In addition, the upper and lower sides are referred to as the upper side on the center line extending in the longitudinal (up and down) direction of the urinal 1 and the lower side as the lower side. Further, the left and right are the right side and right side of the urinal 1 with the user facing the urinal 1 and the left side of the urinal 1.

Moreover, as shown in FIG.3 and FIG.4, the excretion equipment 7 is one of the drain outlet 36 (refer FIG. 3), the drain trap 13 connected to the rear part, and a drain pipe, Comprising: 1 includes a horizontal drainage pipe 51 for guiding one drainage to a downstream pipe, and a drainage connection joint adapter 41 that connects the drainage trap 13 and the horizontal drainage pipe 51 (see FIG. 3). A rubber gasket 130 is interposed between the drain trap 13 and the drain connection joint adapter 41 (see FIG. 4).

  The drain trap 13 (see FIG. 3) has a shape such that the drain trap 36 straightly travels backward at a predetermined length from the drain port 36 and is curved upwardly from there. In other words, the shape is such that the S-shaped letter that is laid down is deformed. The size of the projection is such that the urinal 1 can secure a sufficient sealing depth. The drain trap 13 is provided with a jet cleaner 131 (see FIG. 4) at an upper position at the rear end thereof and inside the case body 5. The jet washer 131 jets high-pressure water pressurized by a high-pressure water generator (not shown) from a nozzle, and uses the impact force at that time to mainly wash the drainage connection joint adapter 41, so that urine stones, etc. Is to be removed.

  In addition, in the drainage connection joint adapter 41, the connection point a with the drainage trap 13 (predetermined part in the traveling direction of the washing water; see FIG. 4), in other words, in the drainage connection joint adapter 41, the vicinity of the entrance is Urine stone is most likely to precipitate. Moreover, the connection location a is a location corresponding to a flat top of a mountain shape with a flat top. And the connection location a is located in a high place rather than the sealing depth. For this reason, there is not necessarily always running water containing urine in the location a. That is, at the connection location a, there is a case where there is running water and a case where there is no running water. When there is no running water, the running water containing urine is gradually dried and urine stones are likely to grow. On the other hand, if there is running water, even if urine is contained in the running water, urine stones are unlikely to appear because the water flows downstream. In other words, the connection location a is a location where a urine user can easily make urinary stones by using the urinal user as a supplement to dry the urine through the connection location a and passing it through the urine.

  Then, high pressure water may be sprayed from the nozzle of the jet washer 131 targeting the connection point a, and the urinary stone formed at the connection point a may be removed by the spraying force, or sprayed before the urinary stone is formed. And you may make it wash | clean the connection location a.

  In the jet washer 131, the position of the nozzle is adjusted so that high-pressure water is jetted from the diagonally upper back to the diagonally lower front toward the connection point a and the vicinity thereof (see the white arrow A in FIG. 4). Has been. The jet cleaner 131 is formed of a hose nozzle 133 and an ultra-high pressure hose 134 that is connected to the hose nozzle 133 and sends high-pressure water (see FIG. 4).

  The jet cleaner 131 has a flange 136. A through hole 13b through which the hose nozzle 133 is penetrated is formed in the ceiling surface 13a of the drain trap 13, and is press-fitted until the flange 136 comes into contact with the through hole 13b. At this time, the dimension from the tip of the hose nozzle 133 to the flange 136 is longer than the length dimension of the through hole 13b. For this reason, when the jet cleaner 131 is incorporated into the through hole 13b, the tip 13d of the hose nozzle 133 slightly protrudes downward from the through hole 13b. At this time, the hose nozzle 133 is incorporated into the through-hole 13b so that the discharge port 133d of the hose nozzle 133 can be discharged toward the part a. A bush 13c is incorporated between the through hole 13b and the hose nozzle 133 (see FIG. 4). This prevents the hose nozzle 133 from coming out of the through hole 13b and suppresses the occurrence of water leakage from the drain trap 13 to the outside through the gap between the hose nozzle 133 and the through hole 13b. It is.

Although the jet cleaner 131 is attached to the ceiling surface 13a of the drain trap 13 by press-fitting the jet cleaner 131 into the through hole 13b of the ceiling surface 13a, the present invention is not limited to this. The jet cleaner 131 may be attached to the ceiling surface 13a of the drainage trap 13 by screwing together the ceiling surface 13a. The nozzle position can be adjusted with respect to the ceiling surface by press-fitting the jet cleaner 131 into the through hole 13b of the ceiling surface 13a, but fine adjustment can be performed when the position is adjusted by screwing.

  In this way, by incorporating the hose nozzle 133 into the through hole 13 b, the jet cleaner 131 is erected vertically with respect to the ceiling surface 13 a of the drain trap 13. In addition, the tip of the hose nozzle 133 (the lower end when the hose nozzle 133 is incorporated in the through hole 13b) protrudes downward from the through hole 13b.

Then, by operating the jet washer 131 in this state, toward the connection point a where the drainage trap 13 and the drainage connection joint adapter 41 are connected, or the drainage connection joint adapter, which is a part where urine stone is easily formed. 41, a liquid such as water is jetted from a hose nozzle 133 to a portion on the extended line of the white arrow A.
Further, if the jet cleaner 131 is periodically operated before urine stones are produced, urine stones are less likely to be generated.

  In addition, the drainage connection joint adapter 41 installed outside the urinal 1 is connected to the front end of the drainage trap 13 as described above (see FIG. 4). As described above, the rubber gasket 130 is interposed between the drain trap 13 and the drain connection joint adapter 41. Furthermore, a horizontal drainage pipe 51 is connected to the downstream side of the drainage connection joint adapter 41.

  The horizontal drainage pipe 51 is installed in the horizontal (left and right) direction below the floor of the building. Further, the horizontal drainage pipe 51 is a pipe for conveying the urine discharged to the urinal toward an external sewage pipe (not shown), and is connected in a direction crossing the drainage connection joint adapter 41.

  The drainage connection joint adapter 41 functions as a connecting pipe that connects the drainage trap 13 and the horizontal drainage pipe 51. Therefore, the drainage connection joint adapter 41 is configured as a trap connection structure 400 whose upstream end is connected to the drainage trap 13 (see FIGS. 3 and 4), and the downstream end of the drainage connection joint adapter 41 is laterally drawn. A horizontal drainage pipe connection structure 413 is connected to the drainage pipe 51 (see FIG. 4).

  The trap connection structure 400 (see FIG. 4) is formed on the outer fitting portion 402 formed at the upstream end of the drainage connection joint adapter 41 (see FIG. 4) so as to protrude forward from the back surface of the case body 5, It is formed by fitting an inner fitting portion 404 that fits with the outer fitting portion 402 (see FIG. 4). A seal ring 406 is attached to the outer peripheral surface of the inner fitting portion 404 (see FIG. 4). When the inner fitting portion 404 is fitted to the outer fitting portion 402, the seal ring 406 seals between the two. .

  The connection structure 413 for horizontal drainage pipes (see FIG. 4) is wound around the horizontal drainage pipe 51 in a U shape around an inner fitting portion 412 formed around the outer peripheral surface of the downstream end of the drainage connection joint adapter 41. It is formed by externally fitting the free end 414a of the winding portion 414 (see FIG. 4). A seal ring 415 is attached to the outer peripheral surface of the inner fitting portion 412 (see FIG. 4), thereby sealing the fitting portion between the free end 414a of the winding portion 414 and the drainage connection joint adapter 41 ( (See FIG. 4).

  Moreover, the wash water distributed from the water supply part 35 (refer FIG. 2, FIG. 3) wash | cleans the inner surface of the receiving surface part 31 and the ball | bowl part 32 with the solenoid valve apparatus which is not shown in figure. The flow of water after washing passes from the drain port 36 (see FIG. 3) through the drain trap 13, the drain connection joint adapter 41 and the horizontal drain pipe 51 (see FIG. 3 and FIG. 4), to the outside not shown. Drained into the sewer pipe.

By the way, even if there is the sagging receiving portion 34 described above (see FIG. 3), urine may be scattered from the inside of the urinal 1 to the outside, or the area around the urinal 1 may be deviated from the urinal 1. is there. In such a case, a device for removing the odor emitted from the urine dripping on the floor surface is the deodorizing device 8 including the opening O and the odor discharge pipe 100 connected to the opening O (FIGS. 2 to 2). 4). According to the deodorizing device 8, the odor discharge pipe 100 (see FIG. 4) has an opening 102 (see FIG. 4) formed on the back surface of the toilet body 3 and leads to the outside of the toilet (outside the case body 5). Yes. The smell of urine dripping on the floor is discharged to the outside as follows.

  That is, the urinal 1 leaks or adheres to the urinal 1 that is the source of odor, and the urinal 1 passes through the vicinity of the bottom of the urinal body 3 where the urine accumulates and the outside of the case body 5 to the toilet floor. It connects through the opening O and the odor discharge | emission pipe | tube 100 (refer FIGS. 2-4). Therefore, the urine odor can be discharged toward the outside of the case body 5. This utilizes the physical phenomenon in which the diffusion of substances, that is, particles, heat, momentum, etc. are spontaneously scattered and spread. Therefore, discomfort can be reduced for the toilet user due to the bad smell of urine.

  Next, how to connect the drain trap 13 and the horizontal drain pipe 51 using the drain connection joint adapter 41 will be described. The drain connection joint adapter 41 is connected to the drain trap 13 through the trap connection structure 400 described above at the upstream end (see FIGS. 3 and 4). Further, the downstream end of the drainage connection joint adapter 41 is connected to the lateral drainage pipe 51 via the horizontal drainage pipe connection structure 413 described above (see FIG. 4).

  Furthermore, as shown in FIG. 4, when the urinal 1 is viewed from the right side, the upstream end of the drainage connection joint adapter 41 is located higher than the lateral drainage pipe 51. Therefore, a drop is generated between the urinal 1 and the horizontal drainage pipe 51.

  Therefore, the drainage (see FIGS. 3 and 4) from the water supply unit 35 through the ball portion 32 of the urinal 1 and the drain trap 13 to the drain connection joint adapter 41 (see FIGS. 3 and 4) is drained in a vigorous state. The joint adapter 41 flows toward the horizontal drainage pipe 51.

  Further, the jet cleaner 131 described above is installed above the drainage connection joint adapter 41 (see FIG. 4). Then, as described above, high pressure water is jetted from the nozzle of the jet washer 131 targeting the connection point a (see FIG. 4), and urinary stones formed at the connection point a are removed by the injection force.

  In addition, the location where the urinary stone is removed by the injection force, that is, the target is not limited to the connection location a. For example, the drainage connection joint adapter 41 on the extension line of the white arrow A in the drainage connection joint adapter 41 may be used. In this case, since the drainage connection joint adapter 41 in the extending direction of the white arrow A from the nozzle 133 of the jet cleaner 131 is diagonally downward to the right when facing the front in FIG. 4, the drainage from the nozzle 133 of the jet cleaner 131 is drained. When there is an injection toward the connection joint adapter 41, the force and gravity due to the injection combine to increase the removal force for removing urine stones adhering to the inner surface of the drainage connection joint adapter 41.

  The drainage that has reached the horizontal drainage pipe 51 is guided to the horizontal drainage pipe 51, and is a drainage pipe downstream from the horizontal drainage pipe 51, and a vertical pipe and a drainage main pipe (both not shown). )) And finally guided to the urine processing plant where it is processed.

FIG. 5 is a block diagram of a flush toilet according to the present invention.
In FIG. 5, the control unit 70 includes a central processing unit (CPU), a timer 70 a that sets the operation time of the jet cleaner 131, and a counter 70 b that counts the number of sinks. In addition, the control unit 70 includes a read / write memory (RAM) of information data to be transmitted (not shown), and a read-only memory (ROM) that stores a program for executing the system.
), And a bus for connecting them.

Further, the urinal 1 in FIG. 5 is configured to include a jet washer 131 and a water flow sensor 132.
Then, the control unit 70 and the urinal 1 transmit information from the control unit 70 to the jet washer 131 by interposing an interface (I / F), and information from the water flow sensor 132 to the control unit 70. Is shown to be transmitted.

In this embodiment, serial communication is used as a communication link between computer components. Examples of the serial communication architecture include the following, but are not limited to these. For example, a signal of 0 (Low) or 1 (High) may be input to the control unit 70 from a signal of a switch that simply detects ON / OFF.
RS-232 (low speed, used for serial port)
・ RS-423
・ RS-485
・ Universal Serial Bus
・ I ² C (I Squared Sea)
However, instead of using the water flow sensor, the flow of water may be detected by an output signal of a sensor for turning on / off water washing, for example, an infrared sensor. That is, it may be considered that the water flow is detected with the instruction of the water flow by the sensor.

  FIG. 6 is a flowchart showing a procedure by the control unit 70 when water or the like is periodically ejected from the jet washer 131 using the flush toilet having such a configuration.

In S <b> 61, for example, the water flow sensor 132 detects whether or not the water supply unit 35 made on the same day is sinking into the first toilet. The detected data is transmitted to the control unit 70, and the control unit 70 determines whether or not there is a sink. If a positive determination is made, the process proceeds to S62. If a negative determination is made, step S61 is repeated.
In S62, the timer 70a starts operating.
In S63, it is determined whether or not the predetermined time (first predetermined time) has elapsed since the start of the operation of the timer 70a in S62. For example, it is determined whether or not 3 hours have elapsed. If the determination is affirmative, the process proceeds to S64. If the determination is negative, this routine is repeated.
In S64, the jet cleaner 131 is activated. As a result, the liquid is discharged to a predetermined location in the traveling direction of the cleaning water. The predetermined portion is, for example, in the drainage connection joint adapter 41 and near the entrance. Urine stone is most likely to deposit near the entrance of the drainage connection joint adapter 41.
In S65, it is determined whether or not a predetermined time (second predetermined time) has elapsed after the operation of the jet cleaner 131. If an affirmative determination is made, the process proceeds to S66. If the determination is negative, this routine is repeated.
In S66, the operation of the jet cleaner 131 is stopped, and the discharge of the liquid to a predetermined location in the traveling direction of the cleaning water ends. Thereafter, the process returns to S61.

(Function and effect)
In the invention according to the first embodiment, a jet cleaner 131 is attached to the upper front end of the drain trap 13. The jet cleaner 131 functions as a liquid discharge unit that discharges liquid with at least the drainage connection joint adapter 41 as a target. The jet washer 131 injects liquid such as water or chemicals at high pressure onto at least the drainage connection joint adapter 41. The urinary stone is removed by the operation of the jet washer 131. Further, since the jet cleaner 131 is operated periodically (in this embodiment, for example, every 3 hours: S63 in FIG. 6) before urine is formed, it is difficult for urine to be generated. Injecting with the drainage connection joint adapter 41 as a target means that a high-pressure liquid is ejected at a pinpoint, so that it is easy to remove it intensively even if urine stones are generated. Therefore, the removal efficiency is good. Moreover, since a high-pressure liquid is ejected at a pinpoint, the generation of urinary stones can be easily suppressed without flowing a large amount of water.

  Moreover, since the jet cleaner 131 is installed inside the case body 5, the sound generated by discharging liquid such as water ejected from the jet cleaner 131 is also reduced. For this reason, I do not mind much sound.

  Next, Embodiment 2 will be described with reference to FIG. In the invention according to the second embodiment, the jet cleaning device is operated at night by operating a timer by the control unit 70.

In S71, the current time is detected.
In S72, it is determined whether or not the time detected in S71 has passed 12 o'clock at night. If a positive determination is made in S72, the process proceeds to S73. If a negative determination is made, this routine is repeated until an affirmative determination is made.

In S73, the jet cleaner is activated.
In S74, it is determined whether or not a predetermined time has elapsed since the operation of the jet cleaner. If a positive determination is made, the process proceeds to S75. If a negative determination is made, this routine is repeated until an affirmative determination is made. The “predetermined time” of the “predetermined time after the operation of the jet cleaner” is a time during which the “hose nozzle 133” is operating for the predetermined time. That is, when the hose nozzle 133 is actuated for the predetermined time, it is a time when it becomes possible to suppress the occurrence of slime and colored stains and to easily eliminate the cause of odor. In addition, the drainage connection joint that connects the drainage trap 13 and the horizontal drainage pipe 51 of the urinal 1 to the insoluble urine stone due to phosphate ions and calcium ions remaining in the urinal 1 It is a time during which it is easy to suppress what is made in the adapter 41.

  In S75, the operation of the jet cleaner is stopped, and the discharge of the liquid to a predetermined location in the traveling direction of the cleaning water ends. When the jet washer is activated for a predetermined time in S74, the occurrence of slime or the like can be suppressed. For this reason, it is not necessary to continue the operation of the jet cleaner.

(Function and effect)
According to the second embodiment, the jet cleaner is operated during the night when everyone is asleep by operating the timer. In the middle of the night, everyone is asleep, so you don't mind the sound of the jet washer.

  Next, Embodiment 3 will be described with reference to FIG. In the invention according to the third embodiment, the operation of the jet cleaner 131 is performed once by the control unit 70 every time water is supplied from the water supply unit 35 (see FIGS. 2 and 3) to the toilet.

In S81, the water flow sensor 132 detects whether or not there is a toilet sink, and the detected data is passed to the control unit 70 via the I / F to determine whether or not the toilet sink is present.
If a positive determination is made, the process proceeds to S82. If a negative determination is made in S82, this routine is repeated until a positive determination is made.

In S82, the jet cleaner is activated.
In S83, it is determined whether or not a predetermined time has elapsed since the operation of the jet cleaner. If a positive determination is made, the process proceeds to S75. If a negative determination is made, this routine is repeated until an affirmative determination is made. The “predetermined time” of the “predetermined time after the operation of the jet cleaner” is a time during which the “hose nozzle 133” is operating for the predetermined time. That is, when the hose nozzle 133 is actuated for the predetermined time, it is a time when it becomes possible to suppress the occurrence of slime and colored stains and to easily eliminate the cause of odor. In addition, the drainage connection joint that connects the drainage trap 13 and the horizontal drainage pipe 51 of the urinal 1 to the insoluble urine stone due to phosphate ions and calcium ions remaining in the urinal 1 It is a time during which it is easy to suppress what is made in the adapter 41.

In S84, the operation of the jet washer is stopped. When the jet washer is operated for a predetermined time in S83 (for example, 3 minutes), the occurrence of slime or the like can be suppressed. For this reason, it is not necessary to continue the operation of the jet cleaner.
In the third embodiment, the operation of the jet cleaner 131 is performed once by the control unit 70 every time water is supplied. For this reason, it is easy to suppress generation | occurence | production of a urine stone.

(Function and effect)
In the third embodiment, the operation of the jet cleaner 131 is performed once for each water supply from the water supply unit 35. For this reason, since it can be said that the operation of the jet cleaner 131 is frequently performed, it can be said that the cleaning performance of the jet cleaner 131 is high.

  Next, Embodiment 4 will be described with reference to FIG. In the invention according to the fourth embodiment, when the number of toilet sinks reaches a predetermined number, the control unit 70 activates the jet cleaner.

In S91, it is determined whether or not there is a sink to the toilet by the water supply unit 35. If a positive determination is made, the process proceeds to S92. If a negative determination is made, this routine is repeated until an affirmative determination is made.
In S92, the counter 70b counts the number of times of flowing by the water supply unit 35. If the number of sinks becomes equal to the Nth, an affirmative determination is made, and the process proceeds to S93. If a negative determination is made, this routine is repeated until an affirmative determination is made.

In S93, the operation by the jet cleaner 131 is executed.
In S94, it is determined whether or not a predetermined time (for example, 3 minutes) has elapsed since the operation of the jet cleaner 131. If a positive determination is made, the process proceeds to S95. If a negative determination is made, this routine is repeated until an affirmative determination is made. The predetermined time in S94 indicates the operation time of the jet cleaner 131.
In S95, the operation of the jet cleaner 131 is stopped.

(Function and effect)
Cleaning with the jet cleaner 131 is performed at a rate of once every a plurality of times of water supply by the water supply unit 35. For this reason, it contributes to water saving.

1 Urinal (flush toilet)
DESCRIPTION OF SYMBOLS 3 Flush toilet body 5 Case body 7 Excretion equipment 8 Deodorizing device 13 Drain trap 13a Ceiling surface 13b Through hole 13c Bush 31 Receiving surface portion 32 Ball portion 34 Droop receiving portion 35 Water supply portion 36 Drain port 41 Drainage connection joint adapter (connecting pipe)
51 Horizontal Drainage Pipe 70 Control Unit 70a Timer 70b Counter 100 Odor Discharge Pipe 102 Opening 130 Gasket 131 Jet Washer (Liquid Discharge Unit)
133 Hose nozzle 134 Super high pressure hose 136 Flange 400 Trap connection structure 402 Outer fitting part 404 Inner fitting part 406 Seal ring 412 Inner fitting part 413 Drain pipe connection structure 414 Winding part 414a Free end 415 Seal ring A White arrow a Part O opening S space SP space

Claims (6)

A flush toilet body,
A drainage pipe for guiding drainage from the flush toilet body to a downstream pipe;
A connecting pipe connecting the flush toilet body and the drain pipe;
A flush toilet comprising at least a liquid discharge means for discharging a liquid targeting the connecting pipe.   The flush toilet according to claim 1, wherein the liquid discharge means is installed inside a flush toilet body. A method of cleaning a flush toilet,
Computer
Receiving from the input interface a signal indicating the presence or absence of a wash water sink;
A step of operating a timer when it is determined that there is a sink;
Determining whether a first predetermined time has elapsed since the start of the timer;
If it is determined that the first predetermined time has elapsed, a step of discharging liquid to a predetermined location in the traveling direction of the cleaning water;
And a step of stopping the discharge when a second predetermined time has elapsed after the discharge of the liquid. A method of cleaning a flush toilet,
Computer
A step for the timer to detect the current time;
Determining whether the timer has passed a predetermined time; and
When the timer has passed the predetermined time, discharging liquid to a predetermined location in the traveling direction of the wash water of the flush toilet,
Determining whether or not a predetermined time has elapsed after discharging the liquid;
And a step of stopping the discharge when a predetermined time has elapsed after the liquid is discharged. A method for flushing flush toilets,
Computer
Receiving from the input interface a signal indicating the presence or absence of a wash water sink;
Discharging liquid to a predetermined location in the traveling direction of the cleaning water;
Determining whether or not a predetermined time has elapsed after discharging the liquid;
And a step of stopping the discharge when a predetermined time has elapsed after the liquid is discharged. A method of cleaning a flush toilet,
Computer
Receiving from the input interface a signal indicating the presence or absence of a wash water sink;
Counting the number of sinks and determining whether the number of sinks exceeds a predetermined number;
If it is determined that the predetermined number has been exceeded, discharging liquid to a predetermined location in the direction of travel of the cleaning water;
Determining whether or not a predetermined time has elapsed after discharging the liquid;
Stopping the discharge, and washing the flush toilet.

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