JPH02161028A - Closet system - Google Patents

Abstract

PURPOSE:To save washing water by leading treated water from a septic tank to a water spraying section provided to a trap drainage canal, spraying water to the lower side of a downstream than a weir to generate negative pressure in the trap drainage canal, and making siphonage. CONSTITUTION:A treated water supply pipe 15 is led to a water spraying section 8 provided to a trap drainage canal 4 in a closet 1 from a septic tank 12, and a pump 14 is driven to supply the treated water. It is sprayed to the lower side of a downstream than a weir 4a of the trap drainage canal 4, and negative pressure is generated in the trap drainage canal 4. The washing water in a bowl section 3 is led to the inside of the trap drainage canal 4 by the negative pressure, siphonage is made, and the dirt is discharged with the washing water. According to the constitution, the septic tank treated water is effectively recycled to save water consumption and, at the same time, the septic tank 12 can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a toilet system that reuses treated water from a septic tank as part of toilet flush water.

(Prior Art) Septic tanks for treating flush water from flush toilets and household wastewater are known. Various purification processes are performed in a septic tank to obtain treated water, but generally, this treated water is discharged or evaporated using an evaporator (the problem to be solved by the invention).The treated water is generally brown in color. Because it is colored, even though it is chemically clean, users find it strange to use it for cleaning toilet bowls, and for this reason, toilet systems that reuse treated water have not been put into practical use. Ta.

SUMMARY OF THE INVENTION An object of the present invention is to provide a toilet system that can effectively reuse treated water from a septic tank without making the user feel uncomfortable, and can flush with a small amount of water.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a water sprinkling unit that supplies and sprinkles flushing water to the trap drainage channel of the toilet bowl on the downstream side of the dam of the trap drainage channel. is provided, and the treated water from the septic tank is supplied to the water sprinkler section via a pump.

(Function) Negative pressure is generated within the trap drainage channel by supplying treated water from the septic tank to the downstream side of the trap drainage channel from the sprinkler section. This negative pressure draws the flushing water from the toilet bowl into the trap drainage channel, creating a siphon effect, and the waste is discharged together with the flushing water.

(Example) Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a configuration diagram of a toilet system according to the present invention,
The toilet system is composed of a toilet bowl 1, a septic tank 12, and a water supply control system.

The toilet bowl 1 has a bowl part 3 separated by a partition wall 2 and a trap drainage channel 4. The trap drainage channel 4 connects an inlet 5 opened at the lower part of the rear wall of the bowl part 3 and an outlet 6 opened at the rear bottom surface of the toilet bowl 1 by bending it into a substantially inverted U shape. The discharge passage 4b on the downstream side of the neck portion 4a of the trap drainage passage 4 is formed into a substantially straight pipe shape, and an enlarged diameter cylindrical portion 4C is formed on the outlet 6 side of the discharge passage 4b. The water seal generating cylinder 7 equipped with the constricted part 7a is inserted inside this expanded diameter cylinder part 4C, and the space between the cylinder part 7b of the water seal generating cylinder 7 and the expanded diameter cylinder part 4C is sealed and fixed with adhesive or the like. . The constricted portion 7a is formed by reducing the diameter of the lower end of the water seal generating tube 7 in a direction perpendicular to the tube wall.

A shower 8 for sprinkling water is provided behind the top 4d of the trap drainage channel 40. The spout ports 8a of the shower 8 are radially bored toward the inner wall of the discharge channel 4b of the trap drain channel 4.

A rim passageway 9a is formed in the rim part 9 at the upper peripheral edge of the bowl part 3 in an annular shape so as to protrude inward of the bowl part 3, and water injection ports 10 are provided at appropriate intervals on the bottom surface of the rim passageway 9a. Open diagonally to section 3. In addition, the rim passageway 9a
communicates with the rim water supply chamber 11 at the rear.

The outlet 6 of the toilet bowl 1 and the septic tank 12 are connected by a drain pipe 13. In this example, anaerobic treatment, aerobic treatment,
Although a septic tank 12 equipped with processing chambers for sedimentation separation, disinfection, etc. is used, a septic tank that also processes domestic wastewater may be used. It is also assumed that the septic tank 12 stores enough water to enable continuous flushing of the toilet bowl 1.

The treated water in the septic tank 12 is supplied to the shower 8 via a pump 14 and a treated water supply pipe 15 . The treated water supply pipe 15 includes a shower valve mechanism 16 and a vacuum breaker 1.
7. Connect to a shower supply path 19 such as a rubber hose via a shower flow meter 18. The shower supply channel 19 is connected to the shower 8 by turning its lower end 19a below the neck portion 4b of the trap drain channel 4.

The purpose of folding back the shower supply channel 19 is to prevent odor and the like from leaking from the trap drain channel 4 through the vacuum breaker 17 by sealing the water.

The water supply pipe 20 is connected to the water supply port 11a of the rim water supply chamber 11 via a rim valve mechanism 21, a vacuum breaker 22, and a rim flowmeter 23.

A box 24 is provided at the rear upper part of the toilet bowl 1 to house a vacuum breaker 17.22 and a flow meter 18.23, and a control device 25 and an operation section 26 for providing a flushing start input to the control device 25 are installed in the box 23. Install.

FIG. 2 is a block diagram of the control device.

The control device 25 includes an input interface circuit 25a, a microprocessor (MPU) 25b, a memory 25C, a timer 25d, and an output interface circuit 25e. 23 and 18 are connected, and the rim valve mechanism 21 and the shower valve mechanism 16 are connected to the output interface circuit 25e.

The operation unit 26 includes a switch for starting flushing of the toilet bowl 1, and opening/closing of this switch is controlled by a start signal line 26.
a is input to the control device 25.

Note that the operation unit 26 may be provided with a plurality of operation buttons so that the amount of cleaning water to be supplied can be selected. In addition, a switch or sensor for detecting the seating state is provided, and these signals are input to the control device 25 to enable operation of the operation unit 26 only when the seat is seated, or to switch from the seated state to the non-seated state. The cleaning may then be configured to start automatically after a predetermined period of time.

The flowmeters 18 and 23 are impeller type flowmeters.

The flow meter 18.23 has a magnet attached to the impeller, electromagnetically detects the rotation of the impeller, and outputs an alternating electromotive force having a frequency proportional to the rotation of the impeller as a flow signal. Furthermore, the flowmeters 18 and 23 may be of a type other than a blade wheel type, such as an electromagnetic flowmeter.

The flow signal inputted to the input interface circuit 25a through the flow signal lines 18a and 23a is waveform-converted within the human input interface circuit 25a, and converted into a pulse signal with a predetermined amplitude and a predetermined pulse width proportional to the frequency of the flow signal. and is input to the microprocessor 25b.

The rim valve mechanism 21 and the shower valve mechanism 16 are composed of, for example, electromagnetic valves, which open when a predetermined voltage is applied. 21a and 16a are signal lines that drive each valve mechanism 21.16.

Next, the operation of this embodiment will be explained with reference to the time chart of FIG. 3 and the flow chart of FIG. 4.

In addition, in the flowchart of FIG. 4, 81 to S9 indicate each step of the flowchart.

For convenience of explanation, the rim valve mechanism 21 will be referred to as a rim valve, and the shower valve mechanism 16 will be referred to as a shower valve.

In response to the activation signal from the operating section 26, the control device 25 opens the rim valve (S1) and supplies flush water to the bowl section 3 of the toilet bowl 1. The supplied washing water generates a vortex in the bowl part 3 and pre-washes the bowl part 3. Flowmeter 2 for rim
The microprocessor 25b counts the pulse signal whose waveform has been shaped based on the flow rate signal of No. 3 to obtain an integrated flow rate value or an instantaneous flow rate, which matches the set value of the bowl pre-washing water amount previously set in the memory 25c. At this point, the control device 25, via the output interface circuit 25e,
The rim valve is closed (S2).

Next, the control device 25 opens the shower valve (S
3). As a result, the treated water in the septic tank 12 is spouted from the shower 8 to the outflow path 4b of the trap drainage path 4, and the spouted treated water forms a water seal in the constricted portion 7a of the water seal generating tube 7, and the water seal portion As the water level gradually rises, the air in the trap drain channel 4 is discharged from the outlet 6 to the drain pipe 13 side together with the wash water. Therefore, negative pressure is generated in the trap drainage channel 4, and the accumulated water 2 in the bowl part 3
7 is drawn into the trap drainage channel 4, and a complete siphon condition occurs in which the trap drainage channel 4 is filled with wash water.

The amount of treated water injected from the shower 8 is integrated based on the flow rate signal of the shower flow meter 16, or determined as an instantaneous flow rate, and is set in advance in the mesori 25c, similar to the bowl section described above. When the shower water supply amount matches the set value, the control circuit 25 closes the shower valve 16.
is driven to the closed state (S4).

Even if the water supply from the shower 8 is stopped, the trap drain 4
The siphon action continues, and when the water level of the pooled water 27 in the bowl part 3 falls below the lower end 2a of the partition wall 2 of the toilet bowl 1, air flows in and the siphon action abruptly stops. Before the siphon action stops, water is sprinkled again from the shower 8 to continue the siphon action, thereby improving the ability to transport floating dirt within the bowl portion 3. The timing for resupplying water to the shower 8 is determined by the timer 25d.

After driving the shower valve 16 to the closed state in step s4, the control device 25 immediately starts the timer 25d, and when a preset predetermined time has elapsed, drives the shower valve 16 to the open state again.S5. S6), When the preset siphon continuous water supply amount is supplied, the shower valve 16 is driven to the closed state (S7).

Next, the control device 25 again opens the rim valve 21 so that S
8) When a preset amount of sealed water is supplied to the bowl portion 3, the rim valve 21 is closed (S9).

This completes the continuous water supply control shown in the time chart of FIG.

FIG. 5 is a block diagram of a toilet system similar to FIG. 1 showing another embodiment of the present invention, and the differences from FIG. 1 will be explained.

The toilet bowl 1 of this embodiment has a shower 8 trapped in the drain channel 4.
A water seal generating mechanism 28 separate from the toilet bowl is provided on the downstream side from the approximate middle of the discharge passage 4b of the trap drainage passage 4.

This water seal generating mechanism 28 has an inner diameter expanded at approximately the center in the height direction of the cylindrical body, a dirt guide tube 28b is provided concentrically within the enlarged diameter tube portion 28a below this, and furthermore, the water seal generating mechanism 28 A converging portion 28c is provided at the lower end. The water seal generating mechanism 28 has an upper end connecting cylinder portion 28d fitted and connected to the trap drain channel 4 of the toilet bowl 1, and the fitting connection portion is fixed in a watertight/airtight state with an adhesive or the like.

Between the upper end of the dirt guide tube 28b and the enlarged diameter tube portion 28a, between the lower end of the dirt guide tube 28b and the constricted portion 28c, and between the outer wall surface of the dirt guide tube 28b and the inner wall surface of the enlarged diameter tube portion 28a. are provided with gaps 28e, 28f, and 28g, respectively, and the dirt guide tube 28b is fixed within the enlarged diameter tube portion 28a by connecting portions 28h at three locations, as shown in the horizontal cross-sectional view of FIG. .

Therefore, a part of the washing water flowing through the drainage channel 4b enters the gap 28g between the enlarged diameter cylinder part 28a and the dirt guide cylinder 28b, and the gap 28g between the constricted part 28c and the lower end of the dirt guide cylinder 28b.
The water flows from 8f toward the center of the cylindrical portion to efficiently form a water seal at the drain port 6 portion.

On the other hand, the filth conveyed along with the wash water through the trap drainage channel 4 passes through the inside of the filth guide tube 28b and is discharged from the outlet 6 to a drain pipe (not shown).

In the embodiment shown in FIG. 5, a pressure sensor 29 is provided in the water supply pipe 2o, and the control device 15 changes the opening time of the rim valve 21 in response to the water supply pressure of the water supply pipe 21. It is controlled so that a predetermined amount of water is supplied to the Similarly,
The control device 25 includes a pressure sensor 3 provided in the treated water supply pipe 15.
Based on the pressure detection signal of o, the opening time of the shower valve 16 is adjusted, and a predetermined amount of water is delivered from the shower 8 to the discharge path 4b.
It is controlled so that it is supplied to Further, the control device 25 controls the operation of the pump 14.

(Effects of the Invention) As explained above, the toilet system of the present invention is suitable for use in septic tanks! A buried wood is supplied to the downstream side of the dam of the trap drainage channel of the toilet bowl to generate a siphon effect in the trap drainage channel, so even if the treated water is colored, it is invisible to the user of the toilet bowl.

Therefore, the treated water can be effectively reused without causing any discomfort to the user.

Furthermore, in conventional siphon toilets, in order to generate a siphon effect in the trap drainage channel, 3j2
However, in the toilet system according to the present invention, there is no need to use tap water to generate a siphon, and the amount of tap water used is approximately Water sealing and replenishment to the IIL and bowl portion requires a total of about 4J2, which has the effect of significantly reducing the amount of water consumed, such as tap water.

Furthermore, since the present invention generates negative pressure in the trap drainage channel by shower water sprinkling to cause a siphon effect, it is possible to efficiently generate a siphon effect with a water volume that is 1°C or more lower than that of conventional toilet bowls.

In addition, in the toilet system of the present invention, the amount of water flowing into the septic tank is significantly smaller than before, and the treated water from the septic tank is reused, so the septic tank itself can be made smaller, and the treated water from the septic tank can be reduced. This makes it possible to eliminate water discharge, and has the effect of allowing septic tanks to be installed anywhere.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of the toilet system according to the present invention, Fig. 2 is a block diagram of the $1lJliall device of the same system, Fig. 3 is a time chart showing the operation of the system, Fig. 4 is a flow chart of the same, FIG. 5 is a configuration diagram of a toilet system similar to FIG. 1 showing another embodiment, and FIG. 6 is a sectional view taken along the line Vl-11Q in FIG. 5. In addition, in the drawing, 1 is a toilet bowl, 4 is a trap drainage channel, 4a is a weir part of the trap drainage channel, 4b is a discharge channel of the trap drainage channel,
8 is a shower which is a water sprinkling part, 12 is a septic tank, 14 is a pump, 15 is a treated water supply pipe, 16 is a shower valve mechanism, 2
0 is a water supply pipe, 21 is a rim valve mechanism, and 25 is a control device. Patent applicant: TOTOKIKI CO., LTD.

Claims (1)

[Claims] In a toilet system equipped with a toilet bowl having a trap drainage channel and a septic tank for treating flush water of the toilet bowl, washing is carried out in the trap drainage channel of the toilet bowl and in the trap drainage channel downstream from the dam of the trap drainage channel. A toilet system comprising: a water sprinkling section for supplying and sprinkling water; and treating water from the septic tank being supplied to the water sprinkling section via a pump.