JP4776335B2 - Chemical supply device for flush toilet and chemical supply method for flush toilet - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a flushing toilet chemical supply apparatus and flush toilet flushing chemical supply method, and in particular, to a flush toilet flushing chemical supply apparatus and flush toilet flushing chemical supply suitable for deployment in a toilet provided with a plurality of flush toilets. Regarding the method.

  In general, flush toilets are treated with various chemicals for the purpose of disinfection, deodorization, washing, and the like. This chemical treatment method varies depending on the type of flush toilet, but for example, there is a method in which a chemical is directly put into a toilet bowl or a washing water storage tank, and a chemical is placed in a water supply part of the washing water storage tank. However, in such a method, there are various problems such as frequent and uneconomical drug exchange work, and these problems are particularly serious in public toilets with many uses.

Therefore, conventionally, it is used in combination with a pipe for supplying water for washing to the flush toilet. Every time water flows into the flush toilet, the necessary amount of chemical solution for the purpose of disinfection, deodorization, washing, etc. is automatically supplied to the flush toilet. There are known chemical supply devices for flush toilets that are supplied in a regular manner (see Patent Document 1 and Patent Document 2).
Japanese Patent Publication No.49-21541 JP 2003-96873 A

  However, the above-described chemical supply device for flush toilet is branched from a water supply main for supplying washing water, and is disposed in a branch pipe directly connected to each flush toilet. Accordingly, the flush toilet bowl chemical supply device is required for each branch pipe, that is, the number corresponding to the number of flush toilets installed.

  The present invention has been made in view of the above, and in a facility having a plurality of flush toilets, it is an object to provide a flushing toilet chemical supply device and a flush toilet chemical supply method that do not need to be provided for each flush toilet. And Further, the present invention provides a chemical supply device for flush toilets and a flushing device that can efficiently supply a chemical solution without waste while maintaining a substantially constant concentration of the chemical solution, although it is not necessary to be provided for each flush toilet. It is an object of the present invention to provide a toilet bowl chemical supply method.

In order to solve the above-mentioned problem, in the invention according to claim 1, there is provided a chemical liquid supply device for flush toilets for supplying a chemical solution to the washing water supplied to the flush toilet,
In the water supply main pipe connected to each flush toilet through a branch pipe, a chemical solution mixing pipe section interposed on the upstream side of the branch pipe,
A chemical supply mechanism for supplying a chemical through a chemical discharge pipe connected to the chemical mixing tube,
Have a control unit for controlling the driving of the chemical liquid supply mechanism configured to supply a predetermined amount of liquid medicine at a predetermined timing,
The chemical solution supply mechanism includes a pump connected to a chemical solution tank via a chemical solution inflow pipe and driven and controlled by the control unit,
The control unit is electrically connected to a flow sensor interposed in the water supply main, and receives the electrical signal at the time of water flow generation by the flow sensor, and only after a predetermined time has passed, the pump There is provided a chemical liquid supply device for a flush toilet, characterized in that a timing control unit for driving and controlling is set .
According to a second aspect of the present invention, the control unit further includes an output control unit configured to drive and control the pump so as to supply an amount of chemical liquid corresponding to a flow rate detected by the flow rate sensor. A chemical supply device for a flush toilet according to claim 1 is provided.
According to a third aspect of the present invention, there is provided the chemical liquid supply device for a flush toilet according to the first or second aspect, wherein the flow rate sensor is attached to the chemical liquid mixing tube portion.
In the invention according to claim 4 , the water supply main pipe is provided with a plurality of branch pipes, and the flush toilets are connected to the branch pipes, and the chemical liquid mixing pipe section is located on the most upstream side. The chemical solution supply device for a flush toilet according to any one of claims 1 to 3 , wherein the chemical supply device for a flush toilet is disposed in the water supply main pipe upstream of the branch pipe.
In invention of Claim 5 , it is a chemical supply method for flush toilets which supplies a chemical to the washing water supplied to flush toilets,
A chemical flow supply mechanism is driven for a predetermined time after a predetermined time has elapsed after receiving an electrical signal at the time of water flow generation by a flow sensor interposed in the water supply main connected to each flush toilet via a branch pipe And providing a chemical solution supply method for a flush toilet, wherein the chemical solution is supplied to the upstream side of the branch pipe.
According to a sixth aspect of the present invention, there is further provided a chemical liquid supply method for a flush toilet according to the fifth aspect, characterized in that a chemical liquid in an amount corresponding to a flow rate detected by the flow rate sensor is supplied.
In the invention according to claim 7 , the water supply main pipe is provided with a plurality of branch pipes, and the flush toilets are connected to the branch pipes, on the upstream side of the most upstream branch pipe. A chemical solution supply method for a flush toilet according to claim 5 or 6, wherein a chemical solution is supplied.

  According to the present invention, the chemical liquid mixing pipe portion is disposed in the water supply main pipe upstream of the branch pipe, not the branch pipe directly connected to the flush toilet, and the chemical liquid is supplied to the chemical liquid mixing pipe portion. It is a configuration. Accordingly, since a predetermined amount of the chemical solution is already mixed in the washing water passing through each branch pipe at the stage before reaching each branch pipe, the chemical supply device for the flush toilet is provided for each flush toilet. Compared with the conventional technique that had to be provided in the above, the structure becomes simple and the maintenance work becomes easy. In addition, since the chemical supply mechanism is configured to supply a predetermined amount of chemical liquid to the water supply main at a predetermined timing by the drive control of the control unit, the chemical liquid can be supplied efficiently and without waste. The chemical solution can be supplied according to the amount of water flowing through the main pipe.

  In particular, a flow rate sensor interposed in the water supply main is installed, and the chemical supply mechanism is used only for a predetermined time after a predetermined time has elapsed after receiving an electrical signal when a water flow is generated by using a flush toilet. It is preferable to adopt a configuration in which control is performed so as to drive. The medicinal solution can be always contained in the water at a predetermined concentration from the beginning of the flow to the end of the flushing toilet, but after a while after the water starts flowing, the predetermined concentration of the medicinal solution starts to be supplied. It is more efficient and less wasteful to supply the trap so that it collects at the end of the flow. Therefore, the chemical solution can be efficiently supplied by controlling as described above.

  Further, when the driving of the chemical solution supply mechanism is controlled according to the flow rate detected by the flow sensor, the chemical solution can be mixed according to the flow rate, and even if only a part of the plurality of flush toilets is used. Even when all are used almost simultaneously, the chemical concentration can be stabilized substantially.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a toilet facility to which the flush toilet toilet bowl chemical supply device 1 according to this embodiment is applied. In this toilet facility, a plurality of urinals 100 are installed, and a water supply main 110 for supplying cleaning water is usually provided along a wall surface or the like or on the back side of the wall surface. . A plurality of branch pipes 120 are connected to the water supply main pipe 110, and each urinal 100 is arranged by connecting a pipe connection portion 100 a provided on the upper part thereof to each of the branch pipes 120. . Each urinal 100 has a water supply main 110 when a flush valve (not shown) provided on the urinals 100 is manually opened or opened or opened electrically by detecting a person's separation or contact with an optical sensor. In addition, water flows through the corresponding branch pipe 120.

  The flush toilet bowl chemical supply apparatus 1 includes a chemical liquid mixing tube section 10, a chemical liquid supply mechanism 20, and a control section 30. The chemical liquid mixing pipe section 10 is disposed on the water supply main pipe 110 further upstream than the branch pipe 120 located on the most upstream side, and forms a part of the water supply main pipe 110 after the arrangement. . As shown in FIG. 2, the chemical liquid mixing pipe section 10 is provided with connection ports 11 with water supply main pipes 110 at both ends, and each connection port 11 is connected to the water supply main pipe 110. The As shown in FIG. 2B, a discharge pipe connection port 12 is opened on the side surface of the chemical liquid mixing tube portion 10, and the chemical liquid discharge tube 21 is connected to the discharge pipe connection port 12. A flow rate sensor 22 is provided upstream of the opening position of the discharge pipe connection port 12 in the water flow direction. The configuration of the flow sensor 22 is arbitrary, but in this embodiment, as shown in FIG. 2C, a rotor 22a that rotates in response to the flow of water, a permanent magnet 22b that rotates together with the rotor 22a, And a magnetic sensor 22c such as a Hall IC for detecting the number of rotations. The output of the magnetic sensor 22 c is transmitted to the control unit 30 via the cable 23.

  The chemical liquid supply mechanism 20 includes a chemical liquid discharge pipe 21 having one end connected to the chemical liquid mixing pipe section 10, a flow rate sensor 22 attached to the chemical liquid mixing pipe section 10, and a pump to which the other end of the chemical liquid discharge pipe 21 is connected. 26, and one end of which is connected to the pump 26, and the other end is configured to have a chemical solution inflow pipe 24 connected to the chemical solution tank 25. The pump 26 is driven by an electrical signal sent from the control unit 30, sucks the chemical solution from the chemical solution tank 25 through the chemical solution inflow pipe 24, and sends the chemical solution to the chemical solution discharge pipe 21. In addition, the chemical | medical solution supply mechanism 20 is arrange | positioned at the back side of a wall surface, for example so that it cannot be seen from the user of the urinal 100.

  The control unit 30 has a timing control unit that receives an electrical signal from the flow sensor 22 and drives the pump 26 at a predetermined timing. Specifically, when the flow sensor 22 detects that water has started flowing in the water supply main pipe 110 including the chemical liquid mixing pipe section 10, the time is measured by a timer provided in the control section 30, and the timing is The control unit controls so that the pump 26 is driven only for a predetermined time after the predetermined time has elapsed. When the flush valve is opened using any one of the urinals 100, the water starts to flow. However, since the time from the start of the flow to the end of the flow varies depending on the water pressure, the flow from the start of the flow to the end of the flow is previously determined for each toilet facility. The time is set in the timer so that the chemical solution is charged only for a predetermined time before the flow is finished.

  The control unit 30 includes an output control unit that adjusts the output according to the flow rate detected by the flow rate sensor 22. Accordingly, the supply amount of the chemical solution is increased or decreased according to the amount of water flowing through the water supply main pipe 110 including the chemical solution mixing pipe section 10, and the chemical solution concentration is kept almost constant regardless of the increase or decrease of the water amount.

  According to the present embodiment, first, when at least one of the urinals 100 is used to open the flush valve, and a water flow is generated in the water supply main 110 including the chemical liquid mixing pipe section 10, Since the signal changes, the control unit 30 detects the timing at which the water flow is generated. The timing control unit set in the control unit 30 sends an electric signal for driving the pump 26 according to the time set in advance in the timer after a predetermined time has elapsed from the time of occurrence of the water flow. Stop. For example, when the time from when the water starts to flow (when the water flow is generated) to the end of the flow is 20 seconds, the timing control unit, for example, 10 seconds has elapsed since the time when the water flow was generated, depending on the time set in the timer. The pump 26 is driven later, and the driving is stopped after 10 seconds. As a result, even if water does not flow in the urinal 100, the chemical liquid is collected in the trap, so that the chemical liquid can be supplied efficiently without waste, and each effect of sterilization, sterilization, bacteriostasis, deodorization, etc. can be enhanced. Can do.

  On the other hand, depending on the number of urinals 100 used, the flow rate of the water flowing through the water supply main 110 (including the chemical liquid mixing tube 10) varies. Since the change in the flow rate of water is detected as a change in the electrical signal of the flow sensor 22, the output control unit set in the control unit 30 adjusts the drive output of the pump 26 according to the electrical signal. As a result, when a larger amount of water flows, more chemical liquid is sucked up from the chemical liquid tank 25 by driving the pump 26 and sent to the chemical liquid inflow pipe 24 and the chemical liquid discharge pipe 21, and the chemical liquid mixing pipe section 10. It is mixed in the water flowing through it. On the other hand, when the amount of water flowing through the water supply main pipe 110 is smaller, the drive output of the pump 26 is suppressed, and a smaller amount of chemical liquid is mixed via the chemical liquid mixing pipe section 10. Therefore, according to this embodiment, even if the flow rate of water flowing in the water supply main 110 changes due to a change in the number of urinals 100 used, the concentration of the chemical solution flowing through the urinals 100 is controlled to be substantially constant. it can.

  In addition, when performing maintenance work for the flush toilet bowl chemical supply apparatus 1 of the present embodiment, for example, when performing chemical supply or the like, the work is performed only at one place, unlike the conventional arrangement for each urinal. Therefore, the labor saving of the maintenance work and the cost reduction effect are great.

  In addition, although the case where it applied to the urinal 100 is mentioned as an example in the above-mentioned description, it is applicable also to facilities, such as a public toilet where a plurality of urinals (including both Japanese and Western styles) are installed. is there.

FIG. 1 is a conceptual view showing a toilet facility to which a flush toilet chemical supply device according to an embodiment of the present invention is applied. FIG. 2 is a diagram showing the structure of the chemical liquid mixing tube part and the flow rate sensor used in the above-mentioned flushing toilet chemical supply device, (a) is a plan view, (b) is a side view, and (c) is (b). It is an AA sectional view taken on the line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Chemical cleaning device for flush toilets 10 Chemical liquid mixing pipe part 20 Chemical liquid supply mechanism 21 Chemical liquid discharge pipe 22 Flow sensor 26 Pump 24 Chemical liquid inflow pipe 25 Chemical liquid tank 30 Control part 100 Urinal 110 Water supply main pipe 120 Branch pipe

Claims (7)

A chemical supply device for a flush toilet that supplies a chemical to the washing water supplied to the flush toilet,
In the water supply main pipe connected to each flush toilet through a branch pipe, a chemical solution mixing pipe section interposed on the upstream side of the branch pipe,
A chemical supply mechanism for supplying a chemical through a chemical discharge pipe connected to the chemical mixing tube,
Have a control unit for controlling the driving of the chemical liquid supply mechanism configured to supply a predetermined amount of liquid medicine at a predetermined timing,
The chemical solution supply mechanism includes a pump connected to a chemical solution tank via a chemical solution inflow pipe and driven and controlled by the control unit,
The control unit is electrically connected to a flow sensor interposed in the water supply main, and receives the electrical signal at the time of water flow generation by the flow sensor, and only after a predetermined time has passed, the pump A liquid supply device for flush toilets, characterized in that a timing control unit for driving and controlling is set . 2. The control unit according to claim 1, further comprising an output control unit configured to drive and control the pump so as to supply an amount of a chemical solution corresponding to a flow rate detected by the flow rate sensor . Chemical solution supply device for flush toilet. The chemical flow supply device for flush toilets according to claim 1 or 2 , wherein the flow rate sensor is attached to the chemical liquid mixing tube portion . The water supply main pipe is provided with a plurality of branch pipes, and the flush toilets are connected to the branch pipes, and the chemical liquid mixing pipe section is located upstream of the branch pipe located on the most upstream side. The chemical supply apparatus for flush toilets according to any one of claims 1 to 3, wherein the chemical supply apparatus is disposed in a water supply main . A chemical supply method for a flush toilet that supplies a chemical to the washing water supplied to the flush toilet,
A chemical flow supply mechanism is driven for a predetermined time after a predetermined time has elapsed after receiving an electrical signal at the time of water flow generation by a flow sensor interposed in the water supply main connected to each flush toilet via a branch pipe And supplying a chemical solution upstream of the branch pipe. Furthermore, the chemical | medical solution supply method for flush toilets of Claim 5 which supplies the quantity of the chemical | medical solution according to the flow volume detected by the said flow sensor. A plurality of the branch pipes are provided in the water supply main pipe, and the flush toilets are connected to the branch pipes, and the chemical solution is supplied upstream of the branch pipe located at the most upstream. The method for supplying a chemical solution for flush toilets according to claim 5 or 6 .

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