JP2558557B2 - Toilet bowl cleaning device for cold regions - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a urinal and urinal cleaning device for cold regions, which is provided with a means for preventing freezing of cleaning water in a low temperature period.

[0002]

2. Description of the Related Art Conventionally, flush toilets installed in cold regions may freeze the flush water in winter, and if the flush water freezes, the flush toilet may be damaged. Continuing to prevent the washing water from freezing and prevent the toilet bowl from being damaged.

[0003]

In the above-mentioned conventional washing water antifreezing means for washing toilets, it is necessary to continuously flush the washing water in the cold season, so that a large amount of washing water is wasted. There is a problem. Further, there is a problem that the operation is troublesome because it is necessary to open the valve in order to flush the wash water in the cold season. Therefore, in the present invention, an annual calendar function that has a calendar function to detect the start of the low temperature period is provided .
When the anti-freezing control signal is output from the immers means, by starting the anti-freezing control that intermittently discharges the washing water to the toilet bowl to prevent the washing water from freezing, no complicated operation is required, and The effective use of cleaning water is a technical problem to be solved.

[0004]

A technical means for solving the above-mentioned problems is to provide a drive valve for discharging flush water to a toilet bowl,
In a toilet bowl cleaning device provided with a human body detection unit that outputs a human body detection signal when a human body is detected, and a control unit that opens the drive valve based on the human body detection signal and discharges the cleaning water into a toilet bowl, Wash water that freezes the wash water
Calendar machine to output the freeze period signal when it is frozen season
Sub-control section having an annual timer means having a function and an antifreezing control means for controlling the antifreezing of the cleaning water by driving the drive valve to intermittently discharge the cleaning water when the freezing period signal is input. It is to be configured with.

[0005]

According to the toilet cleaning device for cold districts having the above structure, the annual timer means having the calendar function of the sub-control section outputs a freeze prevention control signal to the freeze prevention control means when it detects a low temperature period. When the signal is input, the anti-freezing control means drives the drive valve to intermittently discharge the washing water to prevent the washing water from freezing. On the other hand, when the low temperature period has passed, the antifreezing control signal from the annual timer means having a calendar function is cut off, so the antifreezing control means releases the antifreezing control of the washing water and intermittent discharge for freezing the washing water. To stop.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 shows a drive valve 1 that discharges flush water to a toilet bowl (not shown), a human body detector 2 that detects the toilet person and outputs a human body detection signal when the toilet person approaches the toilet bowl.
It is a control block diagram of the toilet bowl cleaning device for cold regions provided with the control part 3 which opens the drive valve 1 when a human body detection signal is input and discharges cleaning water to the toilet bowl. As shown in FIG. 1, between the drive valve 1 and the control unit 3, a temperature sensor 4 for detecting a low temperature period such as freezing of washing water, and an annual calendar function having a calendar function are provided. A sub-control unit 6 having a built-in timer 5 is electrically connected to the sub-control unit 6. The sub-control unit 6 outputs a low temperature signal output from the temperature sensor 4 when the temperature reaches the freezing temperature of the wash water, or an annual timer 5 In order to prevent the freezing of the washing water by inputting the freezing period signal output from the annual timer 5 when the washing water freezing period is set to A drive circuit that outputs a drive signal is incorporated. Since the sub-control unit 6 is configured to be electrically connectable between the control unit 3 and the drive valve 1 later, the sub-control unit 6 can be attached to the already installed flush toilet.

[0007] Figure 2 is a temperature sensor 4A washing water detects that became low temperature phase, such as freezing, and the sub-control unit 6A having a built-in annual timer 5A having a calendar function
FIG. 4 is a control block diagram of the toilet bowl cleaning device for cold regions, which is connected in front of the control unit 3A. Sub control unit 6A shown in FIG.
Is the temperature sensor 4 when the temperature reaches the freezing temperature of the wash water.
The low temperature signal output from A and the freezing period signal output from the annual timer 5A when the wash water freezing period set in the annual timer 5A is configured to be directly input to the control unit 3A. There is. The control unit 3A has a built-in drive circuit that outputs a drive signal for intermittently opening the drive valve 1. When the low temperature signal or the freezing period signal is input, the drive valve 1 is opened intermittently. The cleaning water is discharged by means of this to prevent freezing of the cleaning water, and each time the human body detection signal from the human body detector 2 is input, the drive valve 1 is opened to discharge the cleaning water to the toilet bowl to clean the toilet bowl.

FIG. 3 and FIG. 4 are timing charts of flush water discharge under the control of the toilet cleaning device for cold districts shown in FIG. 1 and FIG. 2. The flush water is based on the human body detection signal from the human body detector 2. FIG. 7 shows the timing of the normal cleaning operation for discharging the water into the toilet bowl and the freeze prevention operation for the cleaning water in the cold season. In FIG. 3, (A) is the control unit 3, 3
The timing of the human body detection signal input to A is shown. Every time the human body detection signal is input to the control units 3 and 3A, the normal cleaning operation (B) of performing pre-cleaning and post-cleaning is performed. Also (C)
Indicates that the anti-freezing operation for anti-freezing of the washing water is performed under the control of the sub-control units 6 and 6A other than when the human body is detected.

Next, FIG. 4 is a timing chart showing that the anti-freezing operation is performed by the control of the sub-control units 6 and 6A regardless of human body detection. As is clear from FIG. 4, (A) and (B) have the same control timing as in FIG. 3, but (C) discharges the cleaning water at a set time interval to prevent freezing of the cleaning water. It is shown that.

[0010]

As described above, according to the present invention, the drive valve for discharging the flush water to the toilet, the human body detecting means for outputting the human body detection signal when the human body is detected, and the human body detection signal in the toilet flushing apparatus provided with a control unit for discharging the toilet the washing water to open the drive valve based, frozen when the washing water became wash water freezing phase as frozen
Annual timer with calendar function to output termination signal
-The freezing prevention control to prevent freezing of the washing water is started by the signal from the means , and the cleaning water is intermittently discharged to the toilet bowl, so that the washing water can be prevented from freezing with a small amount of water. There is an effect. Further, since the antifreezing control is automatically started, it is not necessary to open the valve for flowing the wash water at the beginning of the cold season as in the conventional case, and the troublesome operation is not required. Also , annual timer hand
Depending on the stage, the temperature detection sensor is not required and the cost is reduced.
In addition, the temperature detection means has failed.
Even if you can recover with annual timer means and prevent freezing
This has the effect of increasing the control reliability.

[Brief description of drawings]

FIG. 1 is a control block diagram of an embodiment of the present invention.

FIG. 2 is a control block diagram of another embodiment of the present invention.

FIG. 3 is a timing chart of cleaning water discharge for cleaning and freeze prevention.

FIG. 4 is another timing chart of cleaning water discharge for cleaning and freeze prevention.

[Explanation of symbols]

 1 Drive valve 2 Human body detector 3 Control part 3A Control part 4 Temperature sensor 4A Temperature sensor 5 year timer 5A Annual timer 6 Sub control part 6A Sub control part

Claims (2)

(57) [Claims] 1. A drive valve for discharging flush water to a toilet bowl, a human body detecting means for outputting a human body detection signal when a human body is detected, and the drive valve opened based on the human body detection signal to perform the cleaning. in water toilet cleaning device provided with a control unit for discharging the toilet, wash as the cleaning water freezes
A calendar that outputs a freeze period signal when the water purification freeze period has come
An annual timer means having a function, and an antifreezing control means for controlling the antifreezing of the cleaning water by driving the drive valve to intermittently discharge the cleaning water from the time when the freezing period signal is input. A toilet bowl cleaning device for cold regions, comprising: a sub-control unit having: Wherein while forming the sub-control unit retrofit capable shaped case, in the sub-control unit, the calendar function
With an annual timer means that has a
Temperature detection hand that outputs a low temperature signal to the freeze prevention control means
The toilet bowl cleaning device for cold regions according to claim 1 , further comprising a step .