JP2740519B2 - Toilet flush water supply device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flush toilet that independently supplies flush water to a bowl portion of a toilet bowl and a jet ejection portion that generates a siphon action.

(Prior Art) Japanese Patent Publication No. 61-42057 discloses a toilet and a cleaning method for independently supplying cleaning water to a bowl portion and a jet ejection portion.

In this toilet, as shown in FIG. 9, a water supply device 101 and a toilet 102 are connected by a bowl water supply pipe 103 and a jet water supply pipe 104 to form a bowl part 105 and a jet ejection part 106.
To supply washing water.

The water supply device 101 has a storage chamber 107 for storing the wash water, a jet water supply chamber 108 for supplying a predetermined amount of water to the jet ejection unit 106, and a bowl 105 with a predetermined time delay from the water supply to the jet ejection unit 106. Bowl water supply chamber 109 for supplying cleaning water
It is divided into and.

 Note that 110 is a water supply pipe, and 111 is a ventilation pipe.

In this toilet, when the valve 112 is opened for flushing the toilet, the wash water in the storage chamber 107 flows into the jet water supply chamber 108, and the wash water overflowing from the jet water supply chamber 108 enters the bowl water supply chamber 109. Inflow.

Therefore, the washing water is jetted from the jet jetting part 106 through the jet water supply pipe 104 to generate a siphon action in the trap passage 113. Bowl section due to siphon action
The pool water and waste in 105 are discharged through a trap channel 113.

Next, when the level of the washing water flowing into the bowl water supply chamber 109 exceeds the weir level 115 of the inverted U-shaped pipe 114, the bowl water supply pipe
Wash water is supplied to the bowl portion 105 through 103.

As described above, the conventional toilet shown in FIG. 9 generates a siphon action with an appropriate amount of water and then supplies washing water to the bowl portion, so that washing can be performed with a small amount of water.

(Problems to be Solved by the Invention) However, in the conventional toilet, since the bowl portion is washed later, when the bowl portion is extremely dirty, the water remains in the accumulated water and the water supply device for storing the washing water ( There is a problem that the structure of the tank is complicated.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention controls the supply of washing water to a bowl portion of a toilet bowl and the supply of washing water to a jet ejection portion. A jet valve mechanism and a control device for controlling the opening and closing of each of these valve mechanisms are provided. First, water is supplied to the bowl section to wash the bowl section,
Next, water is supplied to the jet spouting section to discharge sewage and filth in the bowl, and finally, water is supplied again to the bowl section to seal the water.

(Operation) By opening the bowl valve mechanism, water is spirally supplied to the bowl portion, and a vortex is generated in the bowl portion and the bowl portion is washed. Next, by opening the jet valve mechanism, water is supplied to the jet ejection portion, and the washing water ejected from the jet ejection portion generates a siphon action in the trap drainage channel, thereby discharging sewage and filth.
After that, by opening the bowl valve mechanism again,
Water is sealed in the bowl.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a partial sectional view showing the structure of a toilet according to the present invention.

In the figure, reference numeral 1 denotes a toilet, and the toilet 1 includes a toilet 2, a control device 3, and an activation input unit 4.

The toilet bowl 2 is a siphon-jet type toilet having a jet ejection part 2a. The toilet 2 has a bowl water inlet 2 for supplying washing water to the bowl 2c via the rim 2b.
d, and a jet water supply port 2e for supplying cleaning water to the jet ejection part 2a.

The bowl water supply port 2d is connected to one end of a bowl valve mechanism 6 by a connection pipe 5a, and the other end of the bowl valve mechanism 6 is connected to a water supply pipe 8 via a bowl flow sensor 7. Further, the drain hole of the rim portion 2b is provided slightly obliquely with respect to the bowl portion 2c, and the water drained from the rim portion 2b spirally flows on the bowl surface to generate a vortex.

The jet water supply port 2e is connected to one end of a jet valve mechanism 9 by a connection pipe 5b, and the other end is a jet flow sensor.
It is connected to a water supply pipe 8 by a connection pipe 5 via 10.

In this embodiment, the bowl valve mechanism 6 and the jet valve mechanism 9 are constituted by solenoid valves, and the solenoid valves are used to open when a predetermined voltage is applied. In addition, you may comprise a piezoelectric actuator etc. other than an electromagnetic valve.

Bowl flow sensor 7 and jet flow sensor 10
Is a device that outputs an electric signal proportional to the flow rate. For example, a device that has an impeller that rotates in proportion to the flow rate and outputs an electric signal corresponding to the rotation is suitable.

As shown in FIG. 2, the control device 3 includes a microprocessor 3a, a memory 3b, an input interface circuit 3c, and an output interface circuit 3d.

The input interface circuit 3c is connected to a start signal line 4a from the start input unit 4, and flow signal lines 7a and 10a from the bowl flow sensor 7 and the jet flow sensor 10.

The output interface circuit 4d is connected to a bowl signal line 6a for opening and closing the bowl valve mechanism 6 and a jet signal line 9a for opening and closing the jet valve mechanism 9.

The start input unit 4 includes a start switch (not shown) for starting the cleaning of the toilet 1. Opening and closing of the start switch is input to the control device 3 via a start signal line 4a. In addition to the manual operation of switches and the like, the activation input unit 4 allows the toilet user to use the photoelectric
The configuration may be such that the activation signal is automatically generated after a predetermined time from the distance from the remote controller.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. 3 and the time chart of FIG.

In FIG. 3, S1 to S6 indicate the steps of the flowchart.

In response to a start signal from the start input unit 4, the control device 3 drives the bowl valve mechanism 6 to the open state (step S1).

When the bowl valve mechanism 6 is opened, the washing water in the water supply pipe 8 is supplied to the bowl part 2c through the rim part 2b of the toilet bowl 2, and the bowl part 2c is washed.

Next, the control device 3 drives the jet valve mechanism 9 to the open state (step S2).

When the jet valve mechanism 9 is opened, the washing water in the water supply pipe 8 is supplied to the jet outlet 2 a of the toilet bowl 2.

The control device 3 drives the bowl valve mechanism 6 to the open state, and then, based on the flow rate signal of the bowl flow rate sensor 7,
The supply amount to 2c is calculated, and when this supply amount matches the data set in advance, the bowl valve mechanism 6 is controlled to the closed state. When the bowl valve mechanism 6 is closed,
The supply of the washing water to the bowl is stopped.

Here, the period indicated by T1 in the time chart of FIG.
Wash water is supplied to both the bowl portion 2c and the jet ejection portion 2e. This is because the jet valve mechanism 9 is opened during the washing of the bowl portion 2c to supply the washing water, so that the inside of the connection pipe 5b and the inside of the communication portion 2f between the jet water supply port 2e of the toilet bowl 2 and the jet ejection portion 2a are provided. This is for exhausting the air from the jet ejection part 2a to the bowl part 2c. Further, the water discharged from the rim portion 2b generates a vortex in the bowl portion 2c and raises the water level of the bowl portion 2c.

The cleaning water supplied to the jet ejection part 2a is ejected toward the trap drain 2g to generate a siphon action in the trap drain 2f. Bowl section due to siphon action
The pool water and waste of 2c are discharged while swirling through the discharge trap 2f.

The amount of water required to generate a siphon action depends on the structure and shape of the toilet. For this reason, data corresponding to the amount of water required for siphon generation is set in advance in the memory unit 3b of the control device 3, and the microprocessor 3a sends the jet ejection unit based on the flow signal from the jet flow sensor 10.
The amount of water supplied to 2a is calculated, and the calculated result is compared with the required amount of water data in the memory 3b to control the opening time (T2 shown in FIG. 4) of the jet valve mechanism 9.

In addition, without using the flow signal of the jet flow sensor 10,
The water supply time required for siphon generation may be set in the memory unit 3b in advance, and the opening time of the jet valve mechanism 9 may be controlled by timer means or the like in the microprocessor 3a.

Even after the jet valve mechanism 9 is closed, the siphon action continues, and the accumulated water in the bowl 2c is discharged until the water level reaches a predetermined level.

After the predetermined siphon operation duration time has elapsed, the control device 3 drives the bowl valve mechanism 6 again to the open state (step S5), and adjusts the supply amount based on the flow signal from the bowl flow sensor 7. When the calculated supply amount is reached, the bowl valve mechanism 6 is closed.

As described above, the bowl portion 2c of the toilet bowl 2 is sealed.

Next, another embodiment of the present invention will be described with reference to FIGS.

FIG. 5 is a partial sectional view showing the structure of the toilet. The toilet structure shown in FIG. 5 supplies flush water to the toilet 2 via a flush water tank 11, and the other structure is the first structure.
It is the same as the figure. For this reason, the water supply pipe 8 is provided with a water supply valve mechanism 12.
Water supply port 11a of the washing water tank 11 by the connection pipe 13 through
It is connected to the. The connection pipe 5 is connected to the discharge port 11b of the washing water tank 11.

A water level sensor 14 for detecting a water level in the washing water tank 11 is provided in an upper part in the washing water tank 11. The water level sensor 14 emits light or ultrasonic waves and detects the water level based on the time until the reflected wave arrives.

As shown in FIG. 6, the detection output of the water level sensor 14 is connected to an input interface circuit 3c by a water level signal line 14a, and the water supply valve mechanism 12 is connected to an output interface circuit 3d by a water supply signal line 12a. .

Next, the operation of another embodiment will be described with reference to FIGS.

The operation from the start of washing until the bowl portion 2c is sealed is the same as in the first embodiment.

After the water sealing is completed, the control device 3 controls the water supply mechanism 12 to the open state in step S7 of the flowchart in FIG. Thereby, water supply to the washing water tank 11 is started. When the control device 3 determines that the water has been supplied to the predetermined water level based on the water level signal of the water level sensor 14, it closes the water supply valve mechanism. Therefore, the supply of water to the washing water tank 11 is stopped.

(Effects of the Invention) As described above, the washing water supply device according to the present invention first supplies washing water to the bowl portion to generate a vortex in the bowl portion, and supplies water to the jet ejection portion when washing the toilet. Waste water and dirt are discharged, and then the water is again supplied to the bowl portion to seal the water. Therefore, the conveying power of the dirt becomes extremely high, and the dirt in the bowl portion can be surely washed.

Further, since water is supplied to the bowl portion and the jet ejection portion by the control device and each valve mechanism, the degree of freedom in construction is large, and the water can be installed even in a relatively narrow space.

[Brief description of the drawings]

1 is an overall configuration diagram of a toilet to which a cleaning water supply device according to the present invention is applied, FIG. 2 is a block configuration diagram thereof, FIG. 3 is a flowchart showing the operation of this embodiment, and FIG. FIG. 5, FIG. 5 is an overall block diagram of a toilet showing another embodiment, FIG. 6 is a block diagram of the same, FIG. 7 is a flowchart showing the operation of the other embodiment, FIG. FIG. 1 is a sectional view showing a conventional cleaning water supply device. In the drawings, 1 is a toilet, 2 is a toilet bowl, 2a is a jet ejection section, 2c is a bowl section, 2g is a truck drainage channel, 3 is a control device, 4 is a start input section, 6 is a bowl valve mechanism, 7 Is a flow rate sensor for a bowl, 8 is a water supply pipe, 9 is a valve mechanism for a jet, 10
Is a jet flow sensor.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 63-27580 (JP, U) Japanese Utility Model Sho 55-13507 (JP, Y2)

Claims (1)

(57) [Claims] An apparatus for independently supplying washing water to a bowl portion of a toilet bowl and a jet ejection portion for generating a siphon action in a trap drainage channel, wherein a valve valve mechanism for controlling the supply of washing water to the bowl portion. And a jet valve mechanism for controlling the supply of washing water to the jet jetting part. Based on a start input signal, the bowl valve mechanism is first opened to wash the bowl part and raise the water level in the bowl part. Then, the jet valve mechanism is opened to discharge a predetermined amount of water from the jet valve mechanism in order to generate the siphon action. After the predetermined amount of water is discharged, the bowl valve mechanism and the jet valve are discharged. The mechanism is closed, and after the predetermined siphon operation continuation time has elapsed, the bowl valve mechanism is again opened for a predetermined time, and the bowl is sealed. Flush water supply device for a toilet, characterized in that a control device for controlling the so that.