JPS6029516Y2 - Automatic cleaning device - Google Patents

Description

[Detailed description of the invention] This invention is an automatic cleaning device for automatically cleaning a toilet bowl, and in particular, a certain amount of water supplied in a high tank is automatically discharged into the toilet bowl by the siphon operation of an automatic siphon. This invention relates to an automatic toilet flushing system.

As is well known, in this type of automatic flushing device, when a certain amount of water is supplied into the high tank, the automatic siphon automatically performs a siphon operation, and the certain amount of water in the high tank is automatically discharged into the toilet bowl. .

By the way, in the past, in order to perform the above-mentioned automatic water discharge operation at predetermined time intervals, the hydrant of the water pipe for supplying water to the high tank was kept open at all times in an extremely restricted state, and water was constantly supplied from the hydrant into the high tank. The method used was to supply water little by little (flow) so that the water in the high tank reached a certain amount in a predetermined amount of time.

However, when controlling the time of automatic water discharge operation by restricting the flow rate from the faucet to an extremely low level, the flow rate from the faucet is easily affected by fluctuations in water pressure, scale particles flowing in the water pipes, etc. Accurate time control cannot be performed at all.

Since it is necessary to frequently adjust the flow rate of the hydrant, the hydrant is often left wide open to save labor, and as a result, the automatic water discharge operation described above is performed at extremely short intervals. , which was a major cause of water wastage.

This invention was devised to correct the above-mentioned defects, and takes advantage of the accurate discharge function of the automatic siphon.
The present invention aims to provide an automatic cleaning device that can save water to a greater extent than conventional ones.

An embodiment of the automatic cleaning device of the present invention will be described below with reference to the drawings.

First, this automatic flushing device has a function that essentially detects the use of the toilet bowl and automatically releases a certain amount of water from the bi-tank into the toilet bowl after a preset period of time has elapsed, and essentially counts the number of times the toilet bowl is used. It has a function of automatically discharging water when a preset number of times has been reached.

An automatic siphon 1 is provided inside the bi-tank 2, and an automatic water supply valve 3, which is made up of, for example, a solenoid valve, an electric valve, a pneumatic valve, etc., is provided at the tip of a water pipe 14 that supplies water to the bi-tank 2. There is.

Further, a water level detecting means 15 composed of a pair of electrode rods 9 and 10, for example, is provided in the bi-tank 2.

4 is a continuity detection circuit, 5 is a relay circuit, 6 is a timer circuit, 7 is a power supply circuit, 8 is a use detection circuit, and 13 is a counting circuit, which automatically supplies water based on the water level detected in the bi-tank 2 by the water level detection means 15. A first control circuit for driving the valve 3 to close is composed of a continuity detection circuit 4 and a relay circuit 5, for example.

Further, reference numeral 12 denotes a use detection means composed of, for example, a photoelectric switch, a sonic switch, a proximity switch, etc., which is located on the wall, ceiling, floor, door, etc. of the toilet, and is used to detect the user of the toilet. It is adapted to substantially detect the use of the toilet bowl.

A third control circuit that opens the automatic water supply valve 3 after a preset period of time has elapsed after the use means 12 detects that the toilet is in use is constituted by, for example, a use detection circuit 8, a timer circuit 6, and a relay circuit 5. has been done.

In addition, a second control circuit that counts the number of detections by the usage detection means 12 and opens the automatic water supply valve 3 when the detection circuit reaches a preset number of times includes, for example, the usage detection circuit 8 and the counting circuit 13. and a relay circuit 5.

Next, the automatic cleaning operation of the toilet bowl by this automatic cleaning device will be explained.

First, when the water level in the bi-tank 2 is at position L, it means that cleaning has been completed, and this state is maintained until the next cleaning is started.

Next, when the use of the toilet bowl is detected by the use detection means 12, the use detection circuit 8 is activated, and both the timer circuit 6 and the counting circuit 13 are activated.

If the toilet is used frequently, the counting circuit 13 successively counts the number of times the toilet has been used each time the use detecting means 12 successively detects the use of the toilet.

When the number of uses preset by this counting circuit 13 is reached, the relay circuit 5 is activated, and the automatic water supply valve 3 is energized for a preset period of time. The automatic water supply valve 3 is driven to open.

On the other hand, when the toilet bowl is rarely used, after the toilet bowl is used once, the counting operation by the counting circuit 13 of the second control circuit reaches the preset number of uses.
An arbitrary time period preset by the timer circuit 6 of the control circuit ends up passing.

Therefore, at this time, the relay circuit 5 is activated after an arbitrary period of time preset in the timer circuit 6 has elapsed after the usage of the toilet bowl is detected by the usage detection means 12, and the relay circuit 5 is activated in advance. The automatic water supply valve 3 is driven to open by being energized for a certain period of time.

However, when the automatic water supply valve 3 is driven to open, water automatically starts flowing from the water pipe 14 into the bi-tank 2, and the water level in the bi-tank 2 gradually rises.

Note that as the water level in the bi-tank 2 rises, the water level detection means 1
The tips of both electrode rods 9 and 10 of No. 5 are both submerged in water.

Then, electrical continuity is established between the electrode rods 9 and 10, and this is detected by the continuity detection circuit 4, which maintains the relay circuit 5 in an activated state.

As a result, the energization state of the automatic water supply valve 3 is maintained independently of the counting circuit 13 and the timer circuit 6.

Also, soon after this state occurs, the timer circuit 6,
Both the counting circuit 13 and the use detection circuit 8 return to the state before the start of operation, but the automatic water supply to the bi-tank 2 continues because the energization state of the automatic water supply valve 3 is maintained by the action of the continuity detection circuit 4. It was done and its Baytank 2
The water level inside continues to rise.

Next, when the water level in the bi-tank 2 rises and reaches H, the siphon operation of the automatic siphon 1 is automatically performed, and a certain amount of water in the bi-tank 2 is automatically discharged into the toilet bowl via the cleaning pipe 11. The toilet bowl will be automatically flushed.

Next, due to this automatic discharge, the water level in the bi-tank 2 drops rapidly, and both electrode rods 9 and 10 of the water level detection means 15 come out above the water surface.

Then, electrical continuity between the two electrode rods 9 and 10 is lost,
This is detected by the continuity detection circuit 4, and the relay circuit 5 is switched to a non-operating state.

As a result, the power supply to the automatic water supply valve 3 is stopped, the automatic water supply valve 3 is driven to close, and the supply of water to the high tank 2 is automatically stopped.

Note that the automatic siphon 1 releases water until the water level in the high tank 2 falls to the L position, and then stops functioning.

Then, the water level in the high tank 2 will remain in the L state until the automatic water supply valve 3 is next driven to open, and a certain amount of water in the high tank 2 will be automatically discharged into the toilet bowl by the above-mentioned operation. will be repeated.

Although one embodiment of the present invention has been described above, the automatic water supply valve, automatic siphon, water level detection means, use detection circuit, and first and second control circuits referred to in the present invention are limited to those shown in the drawings. It can be modified to any other valid structure without any modification.

As described above, in the present invention, the use of the toilet bowl is substantially detected by the use detection means, and the number of times of detection, that is, the number of times of use is counted by the counting circuit of the second control circuit, and the number of times of use is set in advance. When the number of times reached, the automatic water supply valve is opened and water is automatically supplied to the high tank, and each time the water supplied to the high tank reaches a certain amount, the automatic siphon operates. A certain amount of water is automatically discharged into the toilet bowl, and with the start of the automatic discharging operation, the water level detection means detects that the water level in the high tank has fallen below a certain level, and the first control circuit automatically discharges the water. Because it is configured to close the water supply valve and automatically stop the supply of water to the high tank,
The water in the high tank can be automatically discharged into the toilet bowl based on the number of times the toilet is used, and if the toilet is used frequently, it can be automatically discharged at short time intervals. Alternatively, if the frequency of use is low, automatic discharge can be performed at long time intervals.

As a result, it is possible to take advantage of the automatic siphon's accurate discharge function (quantitative discharge function), and it is possible to prevent wastage of water as much as possible, resulting in an extremely large water-saving effect.

In addition, with conventional water supply valves that were used with the water supply valves extremely restricted, malfunctions such as the water supply valves becoming easily clogged occurred.
With this invention, such failures do not occur at all, and there is no need for complicated automatic water supply valve water volume adjustments, etc., making installation, maintenance, and maintenance easier.
Inspection etc. is very easy.

[Brief explanation of the drawing]

The drawing shows an embodiment of the present invention, and is a schematic diagram showing a cross section of a high tank and the function of a control circuit. Also, in the symbols used in the drawings, 1 is an automatic siphon, 2 is a high tank, 3 is an automatic water supply valve, 4 is a continuity detection circuit, 5 is a relay circuit, 8 is a use detection circuit, 9 and 10 are detection rods, and 12 is a Use detection means, 13 is a counting circuit, 15 is a water level detection means, the continuity detection circuit 4 and relay circuit 5 constitute a first control circuit, and the relay circuit 5, use detection circuit 8 and counting circuit 13 constitute a first control circuit. A second control circuit is configured.

Claims (1)

[Scope of utility model registration request] An automatic water supply valve that automatically supplies water into the high tank, an automatic siphon that automatically discharges a certain amount of water into the toilet bowl when the amount of water supplied into the high tank reaches a certain amount, and an automatic siphon that automatically releases water into the toilet bowl. a water level detection means for detecting that the water level in the high tank has fallen below a certain level with the start of the discharge operation; a first control circuit for driving the automatic water supply valve to close based on the detection by the water level detection means; use detection means for detecting the use of the toilet bowl, and a second means for counting the number of detections by the use detection means using a counting circuit and driving the automatic water supply valve to open when the number of detections reaches a preset number of times. control circuits, and the automatic water supply valve is driven to open by the second control circuit when the number of times the toilet bowl use is detected reaches the preset number.
Water is automatically supplied into the high tank, and when the amount of water supplied into the high tank reaches a certain amount, the automatic siphon operates to automatically discharge that certain amount of water into the toilet bowl, and the automatic discharge is performed. The automatic cleaning is configured such that the water level detecting means detects that the water level in the high tank drops to the constant level upon the start of the operation, and the first control circuit drives the automatic water supply valve to close. Device.