JPS5829946A - Freeze preventing apparatus of toilet bowl - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a toilet bowl antifreeze device.

The purpose is to provide an anti-freezing device that can reliably prevent water stored in a toilet bowl from freezing and is inexpensive to maintain.

A conventional toilet bowl antifreeze device has a configuration as shown in FIG. That is, %1 is the toilet bowl, 2 is the toilet seat, 3
4 is a toilet seat lid, 4 is standing water in the toilet bowl 1, and 6 is a substantially U-shaped drain pipe that obtains the standing water 4 and drains sewage. Preventing 06
7 is a heating jacket that covers the bottom of the toilet bowl 1 and the approximately U-shaped drain pipe 5, and 8 is disposed inside the heating jacket 7. It is a heater.

In the above configuration, if the room temperature drops significantly and it is predicted that the accumulated water 4 will freeze and the approximately U-shaped drain pipe 6 will be damaged, by turning on the heater 8 in the heating jacket T, However, in the above-mentioned conventional example, by heating the bottom of the toilet bowl 1 and the approximately U-shaped drain pipe 6 from the outside, the standing water 4 is prevented from freezing.
Since the toilet bowl is configured to prevent freezing, it is necessary to heat it with the heater 8 with sufficient margin, and as a result, the electric power required to prevent the toilet bowl from freezing in extremely cold regions is quite large, so the maintenance cost is high. In view of the above-mentioned conventional drawbacks, the present invention provides a sensor that detects the temperature of the room where the toilet is installed, and this sensor detects a temperature that would cause the water stored in the toilet to freeze. In such cases, the water supply means that sends water into the toilet bowl is energized by the Send signal, and the water is supplied into the toilet bowl to create a flow of water in the water stored in the toilet bowl, thereby ensuring that the water stored in the toilet does not freeze. It was designed so that it could be done.

Hereinafter, the present invention will be explained based on drawings showing one embodiment thereof. FIG. 2 shows a toilet bowl equipped with an antifreeze device according to an embodiment of the present invention.

Components with the same numbers as in FIG. 1 have the same functions, and their explanation will be omitted. 9 is a nozzle; 10 is water supplied to the toilet bowl 1 from the nozzle 9; 11 is a sensor that detects the temperature in the room in which the toilet bowl 1 is installed; 12 is a signal from the sensor 11 that supplies water to the nozzle 9 FIG. 3 shows a top view of the above embodiment.
Reference numeral 13 indicates water stored in the distern 6, and reference numeral 14 indicates a water filter installed in the distern 6. The water filter 14 is submerged in the water 13. 15 is a pump that sucks the water 13 through the water filter 14 and sends the water to the nozzle 9; 16 is a controller.

FIG. 4 shows a circuit diagram in the above embodiment, so 17 is an AC power supply, 18 is a resistor, 19, 20° 21.2
A diode 2 performs full-wave rectification of the voltage of the AC power source 17. 23 is a Zener diode, which clips the full-wave rectified voltage. 24.25 is a resistor, 26 is a transistor, 27 is a capacitor, 28 is a resistor, 29 is a unijunction transistor, and 3o is a pulse transformer, which charges the capacitor 27 with a current according to the voltage across the sensor 11, and When the voltage of this capacitor 27 reaches the breakover voltage of the unijunction transistor 29, a voltage is applied to the primary coil of the pulse transformer 3o. 3
1 is a diode, and 32 is a semiconductor control element for controlling power supplied to the pump 15. This semiconductor control element 32 is triggered by the voltage of the secondary coil of the pulse transformer 30 to supply power to the pump 16.

Note that the diode 31 is for absorbing the back electromotive force of the pulse transformer 3o, and in one embodiment, a negative characteristic resistance element is used as the sensor 11.

In the above configuration, when the sensor 11 detects that the room temperature has dropped to, for example, 6° C., the charging voltage of the capacitor 27 reaches the breakover voltage of the unijunction transistor 29, and the voltage is transferred via the pulse transformer 3o. Triggering the semiconductor control element 32 and supplying the pump 15 with power limited by phase control results in the pump 16 starting to rotate slowly, so that the water filter 14
The water 13 in the toilet 6 is suctioned from the nozzle 9, and water is supplied into the toilet bowl 1 from the nozzle 9 as shown in FIG. As this supplied water overflows the approximately U-shaped drain pipe 6 as shown by the arrow in FIG. It is something that can be prevented. In addition, since the water supply flow rate to create a flow in the reservoir water 4 only needs to be minute, the electric power of the pump 16 for obtaining this minute flow rate is extremely small. It has the advantage that freezing of the stored water 4 can be prevented, and maintenance costs are therefore low. Furthermore, since the amount of water supplied from the nozzle 9 is small and is supplied along the inner wall of the toilet bowl 1, the noise of the water during operation is low, so even if it operates at night, it will not be bothersome. .

Furthermore, in the above embodiment, as the temperature detected by the sensor 11 becomes lower, its resistance value becomes larger and the charging current to the capacitor 27 increases, so that the breakover phase of the unijunction transistor 29 advances. , the amount of power supplied to the pump 15 also increases. This results in
As the temperature detected by the sensor 11 becomes lower, the amount of water sent from the nozzle 9 to the reservoir 4 in the toilet bowl 1 increases, and the flow of water becomes larger. The sensor 11 can be installed at a location inside the toilet bowl 1, in addition to the location where the temperature in the room where the toilet bowl 1 is installed is detected as shown in the above embodiment. , standing water 4 in the wall or toilet bowl 1
It may be installed in a position where the temperature of the sensor can be detected, and is not limited to the position in the above embodiment. In addition, in the case of a direct water connection type that does not use a distern, 41
It is better to use 4 valves.

As described above, according to the present invention, the water supply means is energized by signals from the sensors, including a water supply means for supplying water into a toilet bowl having accumulated water, and a sensor for detecting the temperature of a room, etc., in which the toilet bowl is installed. and an energizing circuit configured to detect a decrease in temperature by the sensor, energize the water supply means, and supply water into the toilet bowl to cause a flow of water in the water stored in the toilet bowl. Therefore, it is possible to provide a resource-saving and energy-saving anti-freezing device because it reliably prevents water from freezing, requires less water, and consumes only a small amount of power for the water supply means, such as pumps.・It is possible.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing the configuration of a conventional toilet bowl antifreeze device, FIG. 2 is a side sectional view of a toilet bowl equipped with an antifreeze device according to an embodiment of the present invention, and FIG. 3 is a top view of the toilet bowl. 4 are electrical circuit diagrams of the toilet bowl. 1... Toilet bowl, 4... Standing water, 11. River.
・Sensor, 16... Bon 1.16...
Controller, 24.25 Resistor L26... Transistor, 27... Capacitor, 29...
・・Unijunction transistor%3゜・・・・
- Pulse transformer, 32... Semiconductor control element. Name of agent: Patent attorney Toshio Nakao and 1 other person s1
Figure JI: 2!1 @ 3 Figure

Claims (2)

[Claims] (1) A water supply means for supplying water into a toilet bowl having accumulated water; a sensor for detecting the temperature of a room in which the toilet bowl is installed; and an energizing circuit for energizing the water supply means based on a signal from the sensor. An anti-freezing device for a toilet bowl, comprising: detecting a decrease in temperature by the sensor, energizing the water supply means, and supplying water into the toilet bowl to cause a flow of water in the accumulated water in the toilet bowl. (2) The antifreeze device for a toilet bowl according to claim 1, wherein the energizing circuit has output variable means for varying the energizing output in accordance with the signal amount of the sensor.