JPS6145036A - Apparatus for washing urinal - 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 <Industrial Application Field> The present invention relates to a urinal cleaning device that automatically cleans the urinal by sensing the user of the urinal.

<Prior Art> Conventionally, there have been various structures of this type of toilet bowl cleaning device, and a representative one is the one disclosed in Japanese Patent Publication No. 19420/1983.

The device disclosed in Japanese Patent Publication No. 56-19420 includes a sensing section that detects the use of the toilet bowl, an electric control section that operates based on the sensing signal, and a water supply section that supplies flush water to the toilet bowl based on the output of the electric control section. The electric control unit is configured to allow a predetermined time period from sensing to supplying cleaning water to be adjusted as appropriate, and to ignore the sensing signal during this time. However, even if many people use the toilet during the specified time, the toilet is supplied to the toilet before the specified time has elapsed since the first use, so it is unpleasant for people who relieve themselves just before the specified time because it smells and makes the toilet bowl dirty. It is also unsanitary.

<Problems to be Solved by the Invention> The problems to be solved by the present invention are that when many people use the toilet within a predetermined period of time, they must use the toilet a predetermined number of times even before the predetermined time has elapsed. is used to supply water to the toilet bowl.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is a urinal, a tank, and a float that is installed in the tank and moves up and down according to fluctuations in the water level in the tank. , a water supply device having a valve that opens as the float descends and closes as the float rises; and a water supply device that is provided at a drain opening in the bottom wall of the tank and connects to the urinal and drains water. A drain valve composed of a valve seat and a drain valve body that opens and closes the drain valve seat, and an electromagnet that operates electrically to move the drain valve body upward and open the drain valve.
Use of a drainage device comprising a container provided above the bottom wall of the tank and having a small drainage passageway at the bottom, and a slow closing means having a float connected to a drainage valve body and provided within the container, and the above-mentioned urinal. and a control device that controls the energization of the electromagnet of the drainage device based on the sensing signal of the sensing device, and the control device has a counting circuit that counts the sensing signals. a counter control section that generates a first output signal when the count reaches a predetermined number; a timer control section that has a timer circuit activated by a sensing signal and generates a second output signal when time-up; and an output control section that generates an output to the electromagnet when receiving the output signal or the second output signal.

<Function> In the present invention, when the count of sensing signals reaches a predetermined number, flushing water is supplied to the toilet bowl even before the predetermined time has elapsed, and even if the count of sensing signals does not reach the predetermined number, the flush water is supplied to the toilet bowl even before the predetermined time has elapsed. flush water is supplied to the toilet bowl.

<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.

This embodiment shows the case of a so-called high tank in which the tank (B) is arranged above the toilet wall as shown in FIG.

The tank (B) is equipped with a water supply device (C) on the top of the side wall (B1) and a drainage device (D) on the bottom wall (B2), with the former (C) serving as a water supply source and the latter (D> being a small Each toilet bowl (A>) is contacted.

The water supply device (C) is a known ball tap faucet that has a float (C1) and a valve (C2) that is opened and closed by the vertical movement of the float (C1). ) is opened to supply water into the tank (B), and as the water level rises, the float (C1) is raised to close the valve and stop water supply.

The drainage device (D) is attached to the drain opening (B3) on the bottom wall (B2) of the tank (B), and is installed on the base (
It has a drain valve (a) consisting of a drain valve seat (1a) provided at the bottom of the control rod (1), and a drain valve body (2a) provided at the lower end of the operating rod (2).

The base (1) is made of synthetic resin such as ABS resin and has a substantially cylindrical shape, and has an annular drain valve seat (1a) protruding from the inner periphery of the lower end and a plurality of through holes (1b) on the periphery of the upper end. A drainage pipe (1C) is provided inside the tank (B), which is inserted through the bottom wall (B2) of the tank (B) and fixed to the bottom wall (B2).

The drainage tube (1C) is made of metal such as brass and has a substantially cylindrical shape, and an outer tube (3) formed with a diameter larger than the outer diameter of the base (1) is detachably attached to the outer peripheral surface of the upper end of the drain tube (1C) for cleaning. The amount of water can be adjusted, and a hot water pipe (4) connected to the urinal (A) is connected to the lower end.

Furthermore, a frame body (5) made of synthetic resin such as ABS resin and formed into a cylindrical shape having an outer diameter smaller than the inner diameter of the outer cylinder (3) is attached to the upper outer peripheral surface of the base (1). Frame (5)
A passage (3a) is formed between the outer cylinder (3) and the outer cylinder (3).

The frame body (5) has an upper cylindrical part (5a), a column part (5b), and a lower cylindrical part (5G) continuous from above by opening a notch in the middle part of the frame body (5) so as to face each other. The lower cylindrical portion (5C) has its lower end inner circumferential surface screwed onto the upper outer circumferential surface of the base (1), and the container (6) is fitted therein.

The container (6) has an inner and outer double cylindrical inner wall (6a) and an outer cylindrical wall (6b) made of synthetic resin such as polypropylene, and a bottom wall (6C) that connects the lower parts of these inner and outer walls (6a) and (6b). The lower end of the cylindrical outer wall (6b) is fitted and fixed to the upper end of the base (1), and the bottom wall (6b) is fitted and fixed to the upper end of the base (1).
A small drainage channel (6d) in the form of a small hole is opened in C), and the float chamber (6e) formed between the inner and outer walls (6a) (6b) of the cylinder is connected via the channel (6d) to the base. The space (1d) formed inside the stand (1) is communicated with the space (1d).

The inside of the float chamber (6e) has an inner diameter larger than the cylindrical inner wall (6a) and an outer diameter of the cylindrical outer wall (6d).
A smaller diameter annular hollow float (7) is housed and deployed,
An operating rod (2) is slidably guided and inserted into the inside of the cylindrical inner wall (6a).

The buoyant force of the float (7) is slightly larger than the downward force exerted on the operating rod (2) when the drain valve (a') is open, but when the drain valve (a) is closed, the drain valve body (2a)
The water pressure applied to the operating lever (2) is set so that it is smaller than the downward force applied to the operating lever (2).

The operating rod (2) is a cylindrical body made of synthetic resin such as ABS resin, and has the function of an overflow pipe.The operating rod (2) is a cylindrical body made of a synthetic resin such as ABS resin, and has the function of an overflow pipe. ), the valve body (2a) corresponds to the drain valve seat (1a) of the base (1), and both constitute the drain valve (a).

In addition, a skirt-shaped stopper (2b) is attached to the outer peripheral surface of the intermediate portion of the operating rod (2) so as to be inserted into the float chamber (6e), and the upper end of the operating rod (
A cylindrical overflow port (2C) having an inner diameter larger than the inner diameter of step 2) is fixed, and a ring (2d) is secured to the inner surface of the intermediate portion of the overflow port (2C).

The ring (2d) is made of synthetic resin such as polyacetal and has a disk shape, and has a center hole (2e) in the center of which the plunger (8) is inserted, and a plurality of holes around the center hole (2e).
In this embodiment, four water inlets (2f) are penetrated, and the outer peripheral surface is fixed to the inner surface of the intermediate portion of the overflow port (2C) via a retaining ring (2g) or the like.

The plunger (8) is attached to the center hole (2) of the ring (2d).
e) consists of a lower rod (8a) that is inserted vertically and slidably through the inside of the support body (9), and an upper rod (8b) that is located inside the support (9) and is linked to the electromagnet (10). 8a)
The ends of (8b) are fitted together and the pivot (8C) is inserted to connect them.

The lower rod (8a) is made of synthetic resin such as polyacetal and has a smaller diameter than the inner diameter of the center hole (2e), and has a flange (8d) projecting from its lower end that has a larger diameter than the inner diameter of the center hole (2e). , when the drain valve (a) is closed, the flange (8d)
An appropriate distance is provided between the upper surface and the lower surface of the ring (2d).

The support (9) is formed into a disc shape from a synthetic resin such as polyacetal, and its lower outer periphery is fitted into the upper cylindrical part (5a) of the frame (5), and a plurality of screws ( 11
)... are fixed by inserting the frame body (5) and screwing them together, and an empty space (9a
) is recessed.

The cavity (9a) is formed with a circular cross section, and has an upper rod (8b) of the plunger (8) disposed therein, and a through hole (8a) into which the lower rod (8a) is vertically slidably inserted in the bottom wall. 9b)
The electromagnet (
10) is installed.

Further, a cover (9C) covering the electromagnet (10) is attached to the upper outer peripheral surface of the support (9).

On the other hand, the upper end of the upper rod (8b) of the plunger (8) is inserted into the electromagnet (10).
When the electromagnet (10) is energized, the electromagnet (10) is formed to rise upward, and in this embodiment, once the electromagnet (10) is energized, the electromagnet (10) is configured to rise for an appropriate period of time, for example, 1 second.

The above-mentioned empty space (9a) is formed on the outer peripheral surface of the upper rod (8b).
By providing a substantially bottomed cylindrical elastic membrane (12) made of an elastic material such as rubber over the inner surface of the electromagnet (
) to prevent water and steam from entering.

Further, the support body (9) is attached to the upper cylindrical part (5) of the frame body (5).
a), in this example there are four screws (11
)... and a stopper ring (13) that is locked to the upper end surface of the lower cylindrical part (5C) of the frame (5).

The strainer (14) is a metal mesh made of stainless steel or the like formed into a planar annular shape, and its upper end is connected to the screw (11) mentioned above.
・Abut and lock the flanged bushes (11a) fixed with . . . , and fit a two-split stopper ring (13) into the inner periphery of the lower end.

The stopper ring (13) is made of synthetic resin such as BS resin, and has an inner diameter that is approximately the same as the inner diameter of the lower cylindrical portion (5C) of the frame (5), and an outer diameter that is approximately the same as the inner diameter of the sliders (14). It is formed into a cylindrical shape with a diameter, and a pair of openings (5d
) Locking flange portions (13a) protruding into (5d)
(13a) are integrally protruded, and a locking protrusion (13b) protruding outward from the outer peripheral surface of the lower end is protruded over the entire circumference, so that the cross section is formed into a mold, and the planar shape thereof is is divided into two parts so as to be left and right symmetrical, and when installed, the lower surfaces of the locking flange portions (13a) and (13a) are in contact with the upper end surface of the lower cylindrical portion (5C), respectively.

Therefore, the above-mentioned slider (14) has a screw (11).
The flanged bush (11a) fixed with ... the lower surface,
The locking protrusion (13b) of the stopper ring (13) is clamped between the J: surface.

As shown in Fig. 2, such a drainage device (D) usually has a JI water valve (a) closed and the stored water level at the upper end of the overflow port (2C) fixed to the upper end of the operating rod (2). It is slightly lower than that.

Now, when the electromagnet (10) is energized, the plunger (8)
The upper rod (8b) and lower rod (8a) are pulled up,
The flange (8d) formed at the lower end of the lower rod (8a) allows the operation rod (2
) is pulled up, the drain valve (a) opens, and the tank (
B) Most of the water in the lower cylindrical part (5C) of the frame (5)
and the passage (3a) between the outer cylinder (3) and the through hole (
1b) and some of the water is passed through the strainer (14).
, the hot water pipe (4) from the drain valve (a) through the float chamber (6e), the small drainage passage (6d) in the bottom wall (6C) of the container (6), and the internal space (1d) of the base (1). The water is discharged into the urinal (A) through the urinal, and the water level begins to drop rapidly. (Fig. 3) Next, when the water level decreases and descends from the lowest opening position of the strainer (14), that is, the top surface of the stopper ring (13), the small drainage passage (6d) becomes lower than the through hole (1b). Since the water flow area is extremely small, the rate of descent of the water level in the float chamber (6e) is slower than the rate of decrease of the water level in other parts, and the water level in the float chamber (6e) is always higher than the water level in other parts. . (Fig. 3) Then, most of the water in the tank (B) is discharged into the urinal, and the water level in the tank (B) except for the float chamber (6e) drops to the upper end of the outer cylinder (3) and reaches a predetermined level. Even after the amount of water has been drained, water still remains in the float chamber (6e), and the float (7) installed in this float chamber (6e) is in a floating state, so the operating rod (2), That is, the drain valve body (2
a) is prevented from descending by a float (7) via a stopper (2b), and the drain valve (a) is kept open. (Fig. 5) After that, the water level in the float chamber (6e) falls due to drainage from the small drainage passageway (6d), and the position of the float (7) lowers, and accordingly, the drain valve is closed (2a). seat(
1a) and close the drain valve (8) to complete one drain. (Fig. 6) In other words, the drain valve (a) closes with a slight delay after the predetermined amount of water has been drained, and the container (6)
, drainage small passage (6d), float (7), stopper (
2b) constitutes the slow closing means (15) of the drainage device (D>).

The timing of energization of the electromagnet (10) for operating the drainage device (D) is controlled by a control device (E) based on a sensing device (E) to be described later.

Sensing device 'J1. (E) is made up of, for example, a pyroelectric infrared sensor, and by attaching it to the ceiling of the toilet, it can detect the use of all the urinals (A) installed in a row.

As shown in the block diagram of FIG. 7, the control device (F) includes a counter control section (Fl), a timer control section (
F2), and also integrally includes a cleaning switch section (F3) and an equipment protection control section (F4).

The timer control unit (F2) includes a first memory circuit (22) that stores the sensing signal of the sensing device (E) taken out through the OR circuit (20) and the gate circuit (21) and operates the T1 timer circuit (23). and the first memory circuit (2
2) operates for T1 time, and when the time is up, outputs a second output signal to the To all tie circuit (39), which will be described later.
1 timer circuit (23) and To all tie circuit (39)
a first memory reset circuit (24) which receives the signal and sends a signal to the first memory circuit (22) to erase the memory;
It is composed of an outside temperature correction circuit (25) which sends a signal to change the operating time of the TI timer circuit (23) according to the room temperature.

The above-mentioned outside temperature correction circuit (25) constitutes a CR timer using, for example, a thermistor and a capacitor, and shortens the T1 time when the outside temperature becomes high, and lengthens the T1 time when the outside temperature becomes low. During the summer months, when food decomposes quickly, I try to wash it early.

Note that 11 hours can be set by adjusting the time as appropriate.

The above relationship between the temperature and the T1 time is arbitrary; it is sufficient that the lower the temperature, the longer the T1 time, and the shorter the temperature, the shorter the T1 time.

The counter control unit (Fl) includes a third memory circuit (26) that stores the sensing signal taken out through the OR circuit (20) and the gate circuit (21) and starts the T3 timer circuit (27), and a third memory circuit. The T3 timer circuit (27) operates for T3 time by the signal of (26), and when the time is up, generates a pulse signal and operates the third memory reset circuit (28).
) A third memory reset circuit (28) that receives a pulse signal and sends a signal to erase the memory of the third memory circuit (26).
Then, the T3 timer circuit (27) counts the pulse signals emitted, and when the count reaches a predetermined number set by the counter setting external switch (30), the first output signal is sent to the To all tie circuit (39). Counting circuit (29)
, a counter setting external switch (30) that sets the count number by operating an external switch, and a counter reset circuit (31) that resets the count of the counting circuit (29) in response to a signal from the To all tie circuit (39). It consists of

The cleaning switch part (F3) is the second memory circuit (33)
Cleaning switch (32) that outputs an operation signal to activate the
, when receiving a signal from the cleaning switch (32), a second memory circuit (32) stores the signal and sends a signal to the T2 timer circuit (34) and the To all tie circuit (39).
33) and T upon receiving the signal from the second memory circuit (33).
A T2 timer circuit (34) that operates for two hours and outputs a signal to activate a second memory reset circuit (35) when the time has expired, and a T2 timer circuit (34) that receives the signal from the T2 timer circuit (34) and stores the memory in the second memory circuit (33). and a second memory reset circuit (35) for erasing the memory.

The equipment protection control unit (F4) is a T4 timer circuit (36)
and a T4 timer reset circuit (37).
King due to the introduction of 2). When the timer circuit (39) starts and the output circuit (40) operates, T4 timer reset 1-
The circuit (37) is activated and the elapsed time of the T4 timer circuit (36) is reset to 1.

When the To timer circuit (39) times up, the T4 timer reset circuit (37) stops operating and the T4 timer circuit (36) starts.

In other words, the equipment protection control unit (F4) is the long-term urinal (A).
To timer circuit (39) is installed to prevent evaporation of sealed water and buildup of scale in the urinal (A) when the urinal (A) is not flushed.
This is to start the output circuit (40).
The 4-timer circuit (36) is configured to be settable, for example, from 3 hours to 24 hours, and the OR circuit (38), 'ToT1 timer circuit 9), and output circuit (40) are connected to the timer control section (
F2), counter control section (F+), and cleaning switch section (F3).

The To timer circuit (39) is a counter control section (Fl)
, a signal from the timer control section (F2), a signal from the cleaning switch section (F3), and a signal from the equipment protection control section (F4) through the OR circuit (38) to output an output signal for the To time. 1st memory reset circuit (24)
, third memory reset circuit (28), counter reset circuit (31) and T4 timer reset circuit (
37), and the output circuit (40) amplifies the output signal and energizes the electromagnet (10).

The operation of this control device (F) will be explained below. When the sensing device (E) senses the use of the urinal <A), the sensing signal passes through the OR circuit (20), the gate circuit (21), and the first memory circuit (22) of the timer control section (F2). It enters the third memory circuit (26) of the counter control unit (Fl) and enters the first memory circuit (22).
activates the T1 timer circuit (23).

On the other hand, when the third memory circuit (26) receives the sensing signal, it enters a memorized state and starts a T3 timer circuit (27) which can be set, for example, from 15 seconds to 60 seconds.

When the third memory circuit (26) is in the storage state, it does not accept the sensing signal. T3 timer circuit (27) When the overlap detection prevention time T3 has elapsed after the start, the T3 timer circuit (27)
7) generates a pulse signal upon time-up and activates the third memory reset circuit (28) to release the memorized state of the third memory circuit (26), and the third memory circuit (26) generates a new sensing signal. The reception will be accepted.

The counting circuit (29) counts the pulse signals, and the pulse signals are counted by a predetermined number (set to 3 in this embodiment) set by the counter setting external switch (30).

has been done. ), a first output signal is generated and T
o Start the timer circuit (39) and T.

T with the timer circuit (39) operating. An output is generated from the time output circuit (40) to operate the electromagnet (10).

Further, the counter reset circuit (31) is activated by the operation of the To timer circuit (39), and the count of the counting port (29) is returned to O, and the first memory reset circuit (24) is activated.
activates and clears the memory of the first memory circuit (22).
Reset the elapsed time of the timer circuit (23).

Therefore, the To timer circuit (39) and the output circuit (40
) constitutes an output control section (F5).

The timer control section (F2) generates a second output signal by time-up when the count of the counter control section (Fl) does not reach a predetermined number 3 during 11 hours.
The timer circuit (39) is activated, the counter reset circuit (31) is activated, the count of the counting circuit (29) is returned to O, and an output is generated from the output circuit (40).

In addition, when water is flushed regardless of the user's detection, such as when cleaning the urinal (A>), the cleaning switch section (F
3), turn on the switch (32), and turn on the second memory circuit (
33).

Once the switch (32) is turned on, the second memory circuit (33) memorizes it and starts the T2 timer circuit (34) and also operates the To timer circuit (39), so the To time output circuit (40) is activated and drives the electromagnet (10).

At this time, due to the operation of the To timer circuit (39), T
+ Elapsed time of timer circuit (23) and counting circuit (2
The counts in 9) are also retold. On the other hand, when the T2 timer circuit (32) times out, it activates the second memory reset circuit (35), erases the memory in the second memory circuit (33), and waits for the next cleaning switch (32) to be turned on.

Therefore, when the first operation signal is generated, the second memory circuit (33) is memorized and cleaning is performed. ) does not have a catch and is not cleaned. This T2 time is tentatively called a prohibition time, and 12 hours is set to, for example, 10 seconds to 30 seconds. T2 timer circuit (
34) times up and the second memory reset circuit (
35) is activated, the memory of the second memory circuit (33>) is erased, and when the small switch (32) is turned on, cleaning is performed again at that point.

On the other hand, the equipment protection control unit ([3) is activated by using the urinal (A) or by turning on the cleaning switch (32). The timer circuit (39) starts and the output circuit (40)
When activated, the T4 timer reset circuit (37) is activated and the elapsed time of the T4 timer circuit (36) is reset.

When the To timer circuit (39) times up, the T4 timer reset circuit (37) stops operating and the T4 timer circuit (36) starts. Therefore, 14 hours will be temporarily called equipment protection time.

By using the urinal (A) or cleaning switch (32) before the T4 timer circuit (36) times out.
) by adding T. When the timer circuit (39) starts, the T4 timer reset circuit (37) resets the elapsed time of the T4 timer circuit (36), but when the To timer circuit (39) does not start for a long time, such as at night, the T4 timer reset circuit (37) resets the elapsed time of the T4 timer circuit (36).
The 4 timer circuit (36) times up and starts the To timer circuit (39), which supplies water to the urinal (A).

At the same time as starting the To timer circuit (39), the T4 timer reset circuit (37) is activated and the T4 timer circuit (39) is activated.
The elapsed time of 6) is counted and the To timer circuit (3
When the operation of 9) stops, the T4 timer circuit (36) starts again.
starts.

A time chart of the control device (F) of the refusal embodiment is shown in FIG.

In addition, in the bending water embodiment, the control device (F) was provided with a cleaning switch (F3) and an equipment protection section (F4).
It does not need to be provided.

<Effect of the invention> Since the present invention has the above configuration, it has the following advantages.

■When the toilet is used frequently, flushing water is supplied to the toilet as soon as the number of users reaches a predetermined number. This prevents the build-up of sewage in the toilet trap and drain pipes, and prevents the scale from reaching the outside. can be reduced.

- Once the water valve is opened, it is maintained in the open state by the float, and a substantially constant amount of water in the tank is always discharged into the urinal, ensuring a reliable and large cleaning effect.

(2) The opening time of the 11 water valves can be easily adjusted by adjusting the flow area of the small drainage passage and the volume of the container, which constitute the slow closing means of the drainage device.

■When opening the drain valve, the force of the float is activated, and once the drain valve body is raised, the force of the float keeps the valve open, so the electromagnet's energization time is short and the electromagnetic force is small. In fact, even a small electromagnet can perform this function.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of a urinal cleaning device showing one embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main parts, and Figs. 3 to 6 are one of the main components of the present invention. FIG. 7 is a block diagram, and FIG. 8 is a time chart. A... Urinal B... Tank B2... Bottom wall B3... 1 [Water port C...
Water supply device CI... Float C2... Valve D... Drainage device a... Drain valve 1a... Drain valve seat 2a... Drain valve body 6.
... Container 6d... Drainage passageway 7... Float 10... Electromagnet 15... Delay closing means E... Sensing device F
...Control device F1...Counter control section F2...Timer control section F5...Output control section 23...Timer circuit 29.
...Counting circuit patent applicant Totokiki Co., Ltd. Figure 2 JP-A-Sho G1-4503G (9) Figure 3

Claims (1)

[Claims] A water supply device having a urinal, a tank, a float that is installed in the tank and moves up and down in response to fluctuations in the water level in the tank, and a valve that opens as the float descends and closes as it rises;
A drain valve is installed at the drain opening on the bottom wall of the tank and connects to the urinal, and is composed of a drain valve seat and a drain valve body that opens and closes the drain valve seat. An electromagnet that moves the valve body upward to open the drain valve, a container installed above the bottom wall of the tank with a small drainage passage at the bottom, and a float that is linked to the drain valve body and placed inside the container. a drainage device comprising a delay closing means, a sensing device that detects the use of the urinal, and a control device that controls energization of the electromagnet of the drainage device based on a sensing signal from the sensing device, and the control device The device includes a counter control section that includes a counting circuit that counts the sensing signals and generates a first output signal when the count of the sensing signals reaches a predetermined number, and a timer circuit that is activated by the sensing signal and performs a time-up operation. A urinal cleaning device comprising: a timer control unit that then generates a second output signal; and an output control unit that generates an output to the electromagnet when receiving the first output signal or the second output signal. Device.