JPH025854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically flushing water supplied into a water tank into a toilet bowl to clean the toilet bowl.

Conventional toilet bowl cleaning devices of this type are installed upstream of the water supply device that supplies water to the water tank when the toilet bowl is not used for a considerable period of time, such as at night, that is, when there is no need to flush the toilet bowl for a long period of time. The water supply to the aquarium can be stopped by operating the stop valve.

However, in places where a large number of toilets are installed in separate locations, such as in buildings, it is necessary to close the water stop valves installed in each device one by one, which is a great deal of effort. Because of the lack of manpower, the shut-off valves are often left unused, and even if they are not left unattended, they are sometimes forgotten to close, and the toilets are regularly turned off even when they are not being used, such as at night. The current situation is that water is often wasted and water is wasted.

On the other hand, the lack of water resources has become a major social problem in recent years, and there is a demand for the development of toilet bowl cleaning devices that can save water resources.

In view of this situation, the present invention aims to prevent waste of water resources caused by forgetting to close the water stop valve or leaving the water stop valve unattended due to lack of manpower. Provides an automatic toilet flushing device that can electrically control the start and stop of toilet bowls, and eliminates unnecessary flushing of toilet bowls when the lights are not on, that is, at night or on holidays when companies, offices, stores, etc. are not in operation or open. This is an attempt to save water by eliminating water pollution.

Another object of the present invention is to provide a toilet bowl cleaning device that can control the start and stop of flushing with simple operations and can save water without requiring any human effort.

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 is a schematic diagram of the entire apparatus showing a state in which a plurality of cleaning rows are arranged in parallel. a valve actuator 8 that drives the valve actuator 8 and an automatic siphon 2 in the water tank 1
The automatic siphon 2, which is comprised of a urinal 5 and is installed in the water tank 1, is a known automatic siphon. Reference numeral 3 denotes an outlet of the water tank 1, which in this embodiment is an outlet of an automatic siphon 2, and the outlet 3 communicates with several urinals 5 via a water pipe 4.

The water supply device 6 is connected to a water supply pipe 7 such as a water pipe to supply water to the water tank 1, and includes a water supply valve 9 that is opened and closed by a valve actuator 8 operated by the rotational force of a motor. A stop valve 10 for manually opening and closing the pipe is provided on the upstream side of the tank 1, and is installed with a discharge port 11 facing the water tank 1.

The valve actuator 8 is configured such that the rotation of the motor M is transmitted to an output shaft 13 supported by a case 12 via a suitable speed reduction mechanism (not shown). This output shaft 13 supports a disk-shaped eccentric cam 14, and the cam surface of this eccentric cam 14 has a
A return spring 1 is attached to a valve stem 16 whose one end is in contact with the other end of an operating plunger 15 supported movably in the axial direction by a case 12.
They are pressed together by the action of step 7.

The valve stem 16 is held in a reciprocating manner by a guide 18 and extends into the valve housing 19 of the water supply device 6, with its tip end passing through the valve seat hole 20 and reaching the inflow side.
The water supply valve 9 includes a valve body 22 having a valve seat seating surface corresponding to the valve seat 21 formed on its back surface.

Therefore, in the process in which the eccentric cam 14 rotates in one direction together with the output shaft 13, an operation is performed in which the actuating plunger 15 is advanced during the first half-turn, and is moved backward during the next half-turn. The water supply valve 9 opens and closes as the operating plunger 15 moves forward and backward.

Furthermore, a pair of cams 23 and 24 are supported on the output shaft 13 and are shaped like a notch extending approximately half the circumference of the peripheral edge of a disk.
It works to switch between a and 25b. The operating modes of the limit switches 25a and 25b are selected such that the limit switch 25a is turned on when the operating plunger 15 is moving forward, and the limit switch 25b is turned on when the actuating plunger 15 is moving backward.

Next, the circuit configuration of this device will be explained with reference to FIG.

The first water supply device controls the water supplied to the aquariums belonging to the first series, and the second water supply device controls the water supplied to the aquariums belonging to the second series.

The first water supply device is driven by the first valve actuator, and the second water supply device is driven by the second valve actuator. Note that when the number of cleaning lines is three or more, a water supply device and a valve actuator for driving the same are provided for each line. Valve actuator 8
is a motor M for providing driving force to the water supply device 6;
and a pair of limit switches 25a that regulate the rotation angle range of the output shaft 13 that is interlocked with the motor M.
and 25b, and a contact 26 controlled by a relay R' so as to connect either one of the two to the power source E. and this relay
R' is contact 26, limit switch 25a, 25
It is connected to a power source via a light switch 27 so as to be in parallel with the series circuit consisting of motor M and motor M. Further, an indicator lamp L is connected in parallel with the motor M to indicate the drive of the motor M.

The contact 26 is configured to be connected to the limit switch 25a side when the relay R' is ON, and to the limit switch 25b side when the relay R' is OFF. Therefore, motor M is a relay
When the terminal c and a of the contact 26 of R' and the limit switch 25a are ON, or when the terminal c and b of the contact 26 and the limit switch 25b are ON,
When it is ON, it is connected to power supply E and rotates.

In the state shown in FIG. 3, terminal c-b of contact 26 is
While it is ON, the limit switch 25a
is ON, motor M does not rotate. At this time, the operating plunger 15 is retracted, and the water supply valve 9 is therefore closed, so water is not supplied to the water tank 1 and the toilet bowl 5 is not flushed. In this state, when the lighting switch 27 is turned on, that is, when the lighting is turned on, relay R' is turned on, and terminals c and a of the contact 26 are turned on, and current flows to the motor M via the contact 26 and the limit switch 25a. flow, the output shaft 13 starts rotating, and the actuating plunger 1
5 moves forward and begins to open the water supply valve 9, and intermittent flushing of the toilet bowl also begins. When the output shaft 13 rotates approximately 180 degrees, the limit switch 25a is turned off by the action of the cam 23, stopping the motor M, and at the same time, the limit switch 25b is turned on. At this time, the water supply valve 9 is in the most open state, and the toilet bowl continues to be flushed intermittently. Next, when the lighting switch 27 is turned off, that is, the light is turned off, relay R' is turned off.
, and the terminals c and a of the contact 26 are turned OFF.
At the same time, terminals c and b are turned on, motor M rotates, water supply valve 9 begins to close, and limit switch 2
The motor M continues to rotate until the water supply valve 5b is turned off, and the water supply valve 9 is completely closed, and the intermittent flushing of the toilet bowl 5 is stopped. This relationship is expressed in a timing chart as shown in FIG. 4.

Furthermore, similar operations are performed in the second cleaning queue. i.e. a single light switch 27
It is possible to control multiple cleaning queues simultaneously by simply operating the .

The lighting switch 27 can be a manual dedicated switch, or can be turned on and off automatically by a timer, or can be centrally controlled for a large number of devices.

Note that 29 in FIGS. 5 to 7 is a terminal block of the valve actuator 8, and B, W, and R are electrical wirings connected to the terminal block 29 of the valve actuator 8.

The present invention is configured as described above, and the start and stop of flushing the toilet bowl is electrically controlled in conjunction with the light switch, so that the toilet bowl is not flushed during the time when the lights are not turned on, and the lights are turned off. Toilet bowls can be flushed only during the hours when the lights are on, and when the lights are not on, i.e., in the case of companies, offices, and stores, toilet bowls can be flushed only during the hours when the lights are on. You can save water by washing the water without wasting water.

Moreover, when the lighting switch is turned on, the electric motor is energized by the first limit switch, which is turned on by the A contact of the relay and the first cam, and the electric motor begins to rotate and the operating plunger begins to move forward, causing the water supply valve to open. When the valve opens and the operating plunger moves forward to its fullest extent, and the water supply valve is fully opened, power to the motor is automatically stopped, and when the lighting switch is turned off, it is turned on by the b contact of the relay and the second cam. Second
The electric motor is energized by the limit switch of
When the electric motor begins to rotate and the actuating plunger begins to move backwards, and the actuating plunger moves back the most and the water supply valve closes, power to the electric motor is automatically stopped, and while the lights are on and off. No electricity is applied to the motor, saving power.

In addition, you can stop flushing the toilet bowl with the simple operation of turning off the light switch, so there is no need to turn on the water shut-off valves of each device like in the past, which can lead to problems such as forgetting to turn off the water stop valves or leaving the toilet unattended due to lack of manpower. To prevent this, and to reliably save water without requiring any human effort.

Furthermore, since the flushing of the toilet bowl is controlled by a lighting switch, there is no need to provide a dedicated switch for each device, resulting in low cost and easy operation.

Furthermore, the water in the tank was flushed intermittently using an automatic siphon to clean the toilet bowl.
The instantaneous flow rate is large, the toilet bowl flushing effect is high, water can be used effectively, and it is effective in saving water. can be kept clean at all times.

Furthermore, it is possible to provide a toilet bowl cleaning device that is free from failures, has excellent durability, and is not subject to piping restrictions.

Thus, the intended purpose can be achieved.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a schematic diagram of the entire device, FIG. 2 is an enlarged partially cutaway view of the main part,
FIG. 3 is a circuit configuration diagram, FIG. 4 is a timing chart showing the operation timing of each part, and FIG. 5 is a wiring diagram. 1...Water tank, 2...Automatic siphon, 5...Toilet bowl, 6...Water supply device, 9...Water supply valve, 14...Eccentric cam, 15...Plunger, 21...Valve seat, 2
2... Valve body, 23... First cam, 4th... Second
cam, 25a...first limit switch, 2
5b...Second limit switch, 26...Contact, 27...Lighting switch, E...Power supply, M...
Electric motor (motor), R...relay.

Claims (1)

[Claims] 1. A water tank equipped with an automatic siphon, a water supply device for supplying water to the water tank, and a toilet installed in communication with the outlet of the automatic siphon in the tank and flushed intermittently by the water in the tank, and the water supply device is A relay connected to the power source via a light switch,
an electric motor connected to a power source via a first limit switch connected to the a contact of the relay and a second limit switch connected in parallel to the first limit switch to the b contact of the relay;
A plunger that is pressed by an eccentric cam that rotates as the electric motor rotates and reciprocates between a forward position and a retracted position, and a plunger that rotates as the electric motor rotates and moves forward from the retracted position. Only the first limit switch
The first cam is turned on and turned off when the forward position is reached and in the process of moving backward, and the second limit switch is turned on only when the actuating plunger is moving backward from the forward position. A second cam is turned OFF during the process of moving the valve, and a valve body is connected to the valve seat and the actuating plunger. and a water supply valve which closes when the valve body is seated on a valve seat when the actuating plunger is in a retracted position and moves in the axial direction.