Flush toilet water saving system

Abstract

To provide a water saving system for a flush toilet capable of greatly saving the amount of water used in the flush toilet in normal times.SOLUTION: To store filth in a horizontal pipe every time a water saving type toilet bowl is used. The stored filth is force-fed to a sewer pipe by carrying water from the flushing device. The flushing device is provided with a water storage tank for storing the drainage flowing to the sewer pipe as carrier water. Conveyance water in the water storage tank is supplied to the horizontal piping. To force-feed filth in horizontal piping to a sewer pipe.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a flush toilet water-saving system that can significantly reduce the amount of water used in a flush toilet. [Background technology]

[0002] Patent Document 1 describes a flush toilet water-saving system previously proposed by the applicant. This system is configured to flush a small amount of flush water each time the toilet bowl of a flush toilet is used, storing waste in a horizontal pipe, and then pumps out the stored waste using the transport water from a flushing mechanism that directly supplies transport water to the horizontal pipe.

[0003] Meanwhile, a mechanism for reusing bath water is described in Patent Document 2. This mechanism conveys and stores water in a water storage tank 2 buried within the premises of a house, and when the toilet is used, a water lift pump 4 sucks up and discharges the bath water from the water storage tank 2, reusing it as toilet flush water. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7175064 [Patent Document 2] Patent No. 3430469 Summary of the Invention [Problem to be solved by the invention]

[0005] The water-saving system described in Patent Document 1 is configured to flush a small amount of water (350cc to 500cc) each time, storing waste in a horizontal pipe, and then pumping the stored waste from two to five uses together with 6 to 28 liters of conveying water from the flushing mechanism. As a result, it is possible to save a lot of water compared to conventional flush toilets.

[0006] To further reduce the amount of water used in these water-saving flush toilets, it is conceivable to increase the number of times waste is stored or reduce the amount of water conveyed by the flushing mechanism. However, increasing the number of times waste is stored can clog the horizontal pipe. Furthermore, reducing the amount of water conveyed can make it difficult to reliably pump out the stored waste.

[0007] Meanwhile, the water recycling mechanism in Patent Document 2 reuses bath water in a flush toilet, with water stored in an underground water storage tank 2 being pumped up to a flush water tank 3 by a water pump 4 and reused as toilet flush water. However, this mechanism requires new piping between the toilet and the bathtub in order to reuse bath water, which creates the problem of making the overall mechanism of the facility extremely complicated.

[0008] Moreover, since both the water storage tank 2 and the water pump 4 are constructed to be buried underground, adding this burial work to the overall structure of the facility will result in extremely high construction costs.

[0009] The present invention was created to solve the above-mentioned problems, and aims to provide a flush toilet water-saving system that is configured to store waste in a horizontal pipe, and that can transport the waste stored in the horizontal pipe extremely efficiently, thereby enabling even greater savings in water consumption and reducing the construction costs of the equipment. [Means for solving the problem]

[0010] In order to achieve the above-mentioned object, the first means of the present invention is a flush toilet water-saving system configured to store waste in a horizontal pipe P each time a water-saving toilet 10 is used, and to pressure-feed the stored waste into a sewer pipe using conveying water supplied from a flushing device 20 to the horizontal pipe P, The flushing device 20 is provided with a water storage tank 21 for storing wastewater to be discharged into a sewer pipe as conveying water, and is configured to supply the conveying water in the water storage tank 21 to the horizontal piping P.

[0011] The flushing device 20 of the second means is configured to supply conveyed water from the water storage tank 21 to the horizontal piping P when a sensor 23 detects the use of the toilet stool 10.

[0012] The water storage tank 21 of the third means is installed downstream of where either or both of the domestic wastewater and rainwater flow into the sewer pipe.

[0013] The water storage tank 21 of the fourth means is installed at a position higher than the horizontal piping P, and the supply mechanism 22 of the water storage tank 21 is configured to supply the horizontal piping P with the water pressure of the conveying water discharged when the supply port of the water storage tank 21 is opened.

[0014] The supply mechanism 22 of the water storage tank 21 of the fifth means is configured to supply conveying water from the water storage tank 21 to the horizontal piping P via a submersible pump 34. [Effects of the Invention]

[0015] According to the present invention, in a water-saving system configured to store wastewater in horizontal piping, wastewater discharged into sewer pipes is reused as conveying water, thereby making it possible to significantly reduce the amount of water used.

[0016] Moreover, the sensor 23 that detects the use of the toilet 10 allows conveying water to be supplied to the horizontal piping each time the toilet 10 is used, eliminating the need to store waste in the horizontal piping multiple times.

[0017] Furthermore, since the water storage tank 21 is installed downstream of where either or both of the grey water and rainwater flow into the sewer pipes, there is no need to use electricity or a motor when storing conveyed water in the water storage tank 21. As a result, the construction costs of the facility are also reduced.

[0018] Furthermore, by using the water pressure of the conveying water discharged when the supply port of the water storage tank 21 is opened to supply the conveying water to the horizontal piping P, the supply of conveying water to the horizontal piping can also be carried out with extremely low energy consumption.

[0019] Furthermore, by providing the supply mechanism 22 with a submersible pump 34, the conveyed water can be stably supplied to the horizontal piping P regardless of where the water storage tank 21 is installed.

[0020] In this way, according to the present invention, waste stored in the horizontal pipe can be transported extremely efficiently, making it possible to further significantly reduce the amount of water used. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic cross-sectional side view showing an embodiment of the present invention. [Figure 2] FIG. 10 is a schematic cross-sectional side view showing another embodiment of the present invention. [Figure 3] FIG. 10 is a schematic cross-sectional side view showing another embodiment of the present invention. [Figure 4] FIG. 10 is a schematic cross-sectional side view showing another embodiment of the present invention. [Figure 5] FIG. 2 is a cross-sectional side view of a main part of a balanced on-off valve. [Figure 6] 1A is a side cross-sectional view of a main part of a forced on-off valve, in which FIG. 1A shows a closed state and FIG. 1B shows an open state. DETAILED DESCRIPTION OF THE INVENTION

[0022] The water-saving system of the present invention is a system that conserves water usage in flush toilets on a daily basis. That is, the flush toilet of the present invention is a flush toilet that is structured to transport waste from the drain outlet 11 of the toilet bowl 10 through a horizontal pipe P, and stores the waste in the horizontal pipe P.

[0023] The toilet 10 is a water-saving toilet 10, for example, by using a simple flush toilet 10 with a water volume of 350cc to 500cc per flush, waste can be stored in the horizontal piping P (see Figures 5 and 6). Also, the type of toilet 10 is not limited to the example shown in the figure, and various types can be used as described below.

[0024] The water-saving system of the present invention is configured so that the waste stored in the horizontal pipe P is pressure-transported into the sewer pipe by the conveying water supplied from the flushing device 20.

[0025] This flushing device 20 includes a water storage tank 21 that temporarily stores wastewater to be discharged into a sewer pipe, and a supply mechanism 22 that supplies the wastewater stored in the water storage tank 21 to a horizontal pipe P (see FIG. 1).

[0026] The water storage tank 21 stores grey water and rainwater as transport water to be discharged into the sewer pipes (see Figure 2). By providing a sensor 23 that detects the use of the toilet 10, the wastewater can be transported to the horizontal piping P, and the transport water stored in the water storage tank 21 can then be supplied to the horizontal piping P (see Figure 1).

[0027] This water storage tank 21 is installed downstream of the grey water and rainwater so that the wastewater to be discharged into the sewer pipes flows naturally. It is configured so that the water overflows from the water storage tank 21 when it is full (see Figure 2). Grey water refers to everyday wastewater from the kitchen, bath, laundry, etc., excluding toilets.

[0028] In the illustrated example, grey water and rainwater flow into the water storage tank 21 from each floor of the apartment building. The means for collecting grey water and rainwater as transport water to be stored in the water storage tank 21 can be changed as desired.

[0029] Furthermore, if the water storage tank 21 is installed at a position higher than the horizontal piping P, conveyance water can be supplied from the water storage tank 21 to the horizontal piping P simply by opening and closing the supply port of the water storage tank 21 (see FIG. 2).

[0030] The supply mechanism 22 supplies the wastewater stored in the water storage tank 21 to the horizontal piping P. For example, the supply port of the water storage tank 21 can be opened and closed freely, and a submersible pump 33 can also be provided in the water storage tank 21.

[0031] Furthermore, it is also possible to provide a sensor 23 that detects the use of the toilet 10, and configure the supply mechanism 22 to operate in conjunction when this sensor 23 detects the use of the toilet 10 (see Figure 1). The illustrated sensor 23 is provided in the purified water tank 12, but the sensor 23 can be installed in any location where it can detect the use of the toilet 10.

[0032] By installing the water storage tank 21 on the ground, it becomes possible to transport waste in the horizontal piping P to the sewer pipe by the water pressure of the conveying water flowing out of the water storage tank 21 (see Figure 2). In this case, the installation location of the water storage tank 21 is not limited to outdoors, but it can also be installed indoors (see Figure 1). Furthermore, when installing it indoors, it can be installed in a parking lot, warehouse, etc., in addition to being installed in a residence (not shown).

[0033] On the other hand, if the water storage tank 21 is installed at a position lower than the horizontal piping P, the conveyed water cannot be supplied simply by opening and closing the supply port of the water storage tank 21. For this reason, in this case, a submersible pump 33 is provided in the supply mechanism 22 (see FIG. 4). The conveyed water is supplied from the water storage tank 21 to the horizontal piping P via this submersible pump 33.

[0034] Furthermore, by providing the water storage tank 21 with a submersible pump 33, it becomes possible to supply conveying water to the horizontal piping P regardless of the installation location of the water storage tank 21.

[0035] The water-saving toilet stool 10 used in the flush toilet of the present invention can be of various types, such as a simple flush toilet or a siphon toilet.

[0036] The toilet bowl 10 of the simple flush toilet has a drain outlet 11 that is vertically linear and faces the horizontal pipe P (see Figure 5). A swingable valve called a flapper valve is provided at the bottom of the opening of the toilet bowl 10 to prevent odors from flowing back from the drain outlet 11.

[0037] Flapper valves include a balanced on-off valve 30 (see FIG. 5) and a forced on-off valve 40 (see FIG. 6), each of which has a different amount of flush water per flush.

[0038] The balanced on-off valve 30 is a swingable valve that automatically opens and closes depending on the weight of flush water and waste (see Figure 5). This balanced on-off valve 30 uses 350cc of flush water per flush, making it possible to flush with less flush water than other flapper valves.

[0039] The forced on-off valve 40 has a mechanism for storing water at the bottom of the opening of the toilet bowl 10, and is a flapper valve that is forcibly opened and closed manually (see Figure 6). In the example shown, the forced on-off valve 40 is opened via a lever 41, and when opened, the forced on-off valve 40 returns to its original position by the elastic force of a spring 42. The amount of water used for one flush by the forced on-off valve 40, including the stored water, is 500cc, which is particularly effective in suppressing the backflow of odors.

[0040] There are many other types of toilets 10, including siphon type, direct water pressure type, and turn trap type. For example, the siphon type uses a curved drainage channel to fill the pipe with water, causing the siphon action to suck in and discharge waste.

[0041] In addition, the direct water pressure type flushes the toilet by flowing a stream of water down into the toilet bowl to clean it, then sending a jet of water down the drain and discharging it, and after discharging it, the flushing water flows down again, restoring the water seal in the toilet bowl.These series of timings are controlled by an electromagnetic valve to flush the toilet.

[0042] Furthermore, the turn trap system separates the water flow into three steps: cleaning, draining, and collecting water to discharge waste, and the trap is movable and electrically controlled.

[0043] By adjusting the flush water of these various types of toilet 10 to be less, the toilet 10 can be used as a water-saving toilet 10 that can store waste in the horizontal pipe P.

[0044] In this way, the toilet 10 used in the present invention can be of any type as long as it flushes with a volume of water that is sufficient to store waste in the horizontal piping P.

[0045] The configuration of the present invention is not limited to the illustrated example, and design changes are allowed as long as they do not change the gist of the present invention. [Explanation of symbols]

[0046] P Horizontal piping 10 Toilet bowl 11 Drain 12 Purified water tank 20 Flushing device 21 Water Tank 22 Supply mechanism 23 Sensors 30 Balanced shut-off valve 40 Forced on-off valve 41 Lever 42 Spring

Claims

1. In a flush toilet water-saving system, waste is stored in a horizontal pipe each time a water-saving toilet is used, and the stored waste is pressure-fed into a sewer pipe using conveying water supplied from a flushing device to the horizontal pipe. The flushing device is a flush toilet water-saving system characterized in that it is provided with a water storage tank that stores wastewater to be discharged into the sewer pipe as conveying water, and is configured to supply the conveying water in the water storage tank to the horizontal piping.

2. 2. The flush toilet water-saving system according to claim 1, wherein the flushing device is configured to supply conveyed water from the water storage tank to the horizontal pipe using a sensor that detects the use of the toilet bowl.

3. 2. The flush toilet water-saving system according to claim 1, wherein the water storage tank is installed downstream of where either or both of grey water and rainwater flow into the sewer pipe.

4. A flush toilet water-saving system as described in claim 1, wherein the water storage tank is installed at a position higher than the horizontal piping, and the supply mechanism of the water storage tank is configured to supply water to the horizontal piping using the water pressure of the conveying water discharged when the supply port of the water storage tank is opened.

5. 2. The flush toilet water-saving system according to claim 1, wherein the supply mechanism of the water storage tank is configured to supply conveying water from the water storage tank to the horizontal pipe via a submersible pump.

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