JPH0235131A - Stool wash water supply device - Google Patents

Abstract

PURPOSE:To wash out filth securely by supplying water to a bowl area to clean it, supplying water to a jet area to discharge filthy water and filth within the bowl area, and supplying water to the bowl area again for water sealing. CONSTITUTION:When a valve mechanism 6 for a bowl is driven by a controller 3 according to a signal from a starting input area 4, the valve mechanism 6 is opened so as to supply wash water in a water supply pipe 8 to the bowl area 2c of a stool 2 and clean the bowl area 2c for a predetermined period. And a valve mechanism 9 for a jet is opened by the controller 3 to supply water in the water supply pipe 8 to the jet area 2a of the stool 2. Then the wash water is jetted out toward a trap drainage passage 2g, so that a syphon effect can be available in the drainage passage 2g. And due to this syphon effect, standing water and waste matters within the bowl area 2c are discharged in a whirl through the drainage trap 2g.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a flush toilet that supplies flush water independently to a bowl portion of a toilet bowl and a jet spout portion that generates a siphon effect.

(Prior Art) Japanese Patent Publication No. 61-42057 discloses a toilet and its cleaning method in which flush water is supplied independently to a bowl portion and a jet spouting portion.

As shown in FIG. 9, in this toilet, a water supply device 101 and a toilet bowl 102 are connected by a bowl water supply pipe 103 and a jet water supply pipe 104, and flush water is supplied to a bowl part 105 and a jet spout part 106. supply.

The water supply device 101 includes a storage chamber 107 that stores cleaning water;
It is divided into a jet water supply chamber 108 that supplies a predetermined amount of water to the jet spouting section 106, and a bowl water supply chamber 109 that supplies cleaning water to the bowl section 105 with a predetermined time delay from the water supply to the jet spouting section 106. There is.

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

In this toilet, when the valve 112 is opened to flush the toilet bowl, the flushing water in the storage chamber 107 flows into the jet water supply chamber 108.
The cleaning water overflowing from the jet water supply chamber 108 flows into the bowl water supply chamber 109.

Therefore, the cleaning water passes through the jet water supply pipe 104 and is ejected from the jet ejection part 106, causing a siphon effect in the trap path 113. Due to the occurrence of siphon action, the accumulated water and waste in the bowl part 105 are transferred to the trap path 113.
is discharged through.

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

As described above, the conventional toilet shown in FIG. 9 generates a siphon effect with an appropriate amount of water, and then supplies flushing water to the bowl, making it possible to flush with a small amount of water.

(Problem to be Solved by the Invention) However, in conventional toilets, the bowl part is cleaned afterwards, so if the bowl part is heavily soiled, the filth remains in the water and the water supply device that stores the washing water ( The problem is that the structure of the tank is complicated.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a bowl valve mechanism that controls the supply of flush water to the bowl portion of the toilet bowl, and a bowl valve mechanism that controls the supply of flush water to the jet ejection portion. a jet valve mechanism;
A control device is provided to control the opening and closing of each of these valve mechanisms,
First, water is supplied to the bowl part to clean the bowl part, then water is supplied to the jet jet part to discharge the dirty water and dirt from the bowl, and finally water is supplied to the bowl part again to seal the bowl part. be.

(Operation) By opening the bowl valve mechanism, water is supplied to the bowl portion in a spiral manner, a vortex is generated in the bowl portion, and the bowl portion is cleaned. Next, by opening the jet valve mechanism, water is supplied to the jet ejection section, and the cleaning water ejected from the jet ejection section causes a siphon effect in the trap drainage channel, and sewage and filth are discharged. Thereafter, the bowl portion is sealed with water by opening the bowl valve mechanism again.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

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

In the figure, 1 is a toilet, and the toilet 1 is a toilet bowl 2,
It includes a control device 3 and a startup input section 4.

The toilet bowl 2 is a siphon jet type toilet bowl having a jet ejection part 2a. This toilet bowl 2 is provided with a bowl water supply port 2d for supplying cleansing water to the bowl portion 2c via the rim portion 2b, and a jet water supply port 2e for supplying cleansing water to the jet spouting portion 2a. There is.

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

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

In this embodiment, the bowl valve mechanism 6 and the jet valve mechanism 9 are constituted by electromagnetic valves that open when a predetermined voltage is applied. Note that a piezoelectric actuator or the like may be used instead of the electromagnetic valve.

Bowl flow rate sensor 7 and jet flow rate sensor 10
outputs an electrical signal proportional to the flow rate; for example, it is suitable to have an impeller that rotates in proportion to the flow rate and output an electric signal corresponding to the rotation of the impeller.

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 motive force signal line 4a from the starting input section 4, flow rate signal lines 7a and 10a from the bowl flow rate sensor 7 and the jet flow rate sensor 10.

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 are connected to the output interface circuit 4d.

The starting human power unit 4 includes a starting switch (not shown) for starting the flushing of the toilet 1, and opening/closing of the starting switch is inputted to the control device 3 via a starting signal line 4a. In addition to manually operating a switch or the like, the activation input unit 4 may be configured to automatically generate an activation signal after a certain period of time after the toilet user leaves the toilet bowl 2, using a photoelectric sensor, for example. .

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

In addition, in FIG. 3, S1 to S6 indicate each step of the flowchart.

In response to the activation signal from the activation input section 4, the control device 3 drives the bowl valve mechanism 6 to the open state (step Sl).

When the bowl valve mechanism 6 opens, the wash 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 an open state (step S2).

When the jet valve mechanism 9 opens, the cleaning water in the water supply pipe 8 is supplied to the jet spouting part 2a of the toilet bowl 2.

After the control device 3 drives the bowl valve mechanism 6 to the open state,
Based on the flow rate signal of the bowl flow rate sensor 7, the bowl part 2C
The bowl valve mechanism 6 is controlled to be closed when this supply amount matches preset data. By closing the bowl valve mechanism 6, the supply of cleaning water to the bowl portion is stopped.

Here, the period indicated by T1 in the time chart of FIG. 4 is
Cleaning water is supplied to both the bowl part 2C and the jet ejection part 2e. By opening the jet valve mechanism 9 and supplying cleaning water during cleaning of the bowl part 2c, the jet water supply port 2 of the toilet bowl 2 can be
This is for exhausting the air in the communication part 2f between the jet ejection part 2a and the jet ejection part 2a 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 the water level in the bowl portion 2C rises.

The cleaning water supplied to the jet ejection part 2a is ejected toward the trap drainage channel 2g, causing a siphon effect to occur in the trap drainage channel 2f. Due to the occurrence of the siphon action, the standing water and waste in the bowl portion 2C are discharged while swirling through the discharge trap 2f.

The amount of water required to generate a siphon effect varies depending on the structure and shape of the toilet bowl. For this purpose, data corresponding to the amount of water necessary for generating a siphon is set in advance in the memory section 3b of the control device 3, and the microprocessor 3a supplies water to the jet ejection section 2a based on the flow rate signal from the jet flow rate sensor 10. The opening time (T2 shown in FIG. 4) of the jet valve mechanism 9 is controlled by comparing the calculation result with the required water amount data in the memory 3b.

Note that without using the flow rate signal of the jet flow rate sensor 10,
The water supply time necessary for generating a siphon may be set in advance in the memory section 3b, and the opening time of the jet valve mechanism 9 may be controlled by a timer means or the like within 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 it reaches a predetermined water level.

After the preset siphon action duration time has elapsed, the control device 3 opens the bowl valve mechanism 6 again (step S5), and calculates the supply amount based on the flow rate signal from the bowl flow rate sensor 7. When a predetermined supply amount is reached, the bowl valve mechanism 6 is closed.

As described above, the water sealing of the bowl portion 2C of the toilet bowl 2 is performed.

Next, another embodiment of the present invention will be described with reference to FIGS. 5 to 8.

FIG. 5 is a partial sectional view showing the structure of the toilet. Fifth
The structure of the toilet shown in the figure is one in which flush water is supplied to the toilet bowl 2 via the flush water tank 11, and the other structures are the same as in FIG. For this reason, the water supply pipe 8 is connected to the water supply valve mechanism 12.
It is connected to the water supply port 11a of the wash water tank 11 via a connecting pipe 13. Furthermore, a connecting pipe 5 is connected to the outlet 11b of the wash water tank 11.

A water level sensor 14 is provided at the upper part of the wash water tank 11 to detect the water level inside the wash water tank 11 . This water level sensor 14 emits light or ultrasonic waves and detects the water level based on the time it takes for the reflected waves to arrive.

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

Next, the operation of another embodiment will be explained with reference to FIGS. 7 and 8.

The operation from the start of cleaning until the bowl portion 2C is sealed with water is the same as in the first embodiment.

After the water sealing is completed, the control device 3 controls the water supply valve mechanism 12 to open in step S7 of the flowchart of FIG.

As a result, water supply to the wash water tank 11 is started. When the control device 3 determines that water has been supplied to a predetermined water level based on the water level signal from the water level sensor 14, it closes the water supply valve mechanism. Therefore, water supply to the wash water tank 11 is stopped.

(Effect of the invention) As explained above, the washing water supply device according to the present invention has the following features:
When cleaning a toilet bowl, first, water is supplied to the bowl part to generate a vortex within the bowl part, water is supplied to the jet jet part to discharge dirty water and dirt, and then water is supplied to the bowl part again to seal the water. Since it is made of solid wood, the ability to transport dirt is extremely high, and the dirt in the bowl can be reliably washed.

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

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of a toilet to which the flush water supply device according to the present invention is applied, Fig. 2 is a block diagram of the same, Fig. 3 is a flowchart showing the operation of this embodiment, and Fig. 4 is a time chart of the same. , FIG. 5 is an overall configuration 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 another embodiment, FIG. 8 is a time chart of the same, and FIG. The figure is a sectional view showing a conventional washing water supply device. In the drawings, 1 is a toilet, 2 is a toilet bowl, 2a is a jet ejection part, 2c is a bowl part, 2g is a trap drainage channel, 3 is a control device, 4 is a start input part, 6 is a valve mechanism for the bowl, 7 8 is a water supply pipe, 9 is a jet valve mechanism, and 1o is a jet flow sensor.

Claims (1)

[Scope of Claims] In a device for independently supplying wash water to a bowl portion of a toilet bowl and a jet ejection portion that generates a siphon effect in a trap drainage channel, a bowl valve that controls the supply of wash water to the bowl portion a jet valve mechanism that controls the supply of cleaning water to the jet ejecting section; and a jet valve mechanism that first opens the bowl valve mechanism to clean the bowl section based on an activation input signal, and then cleans the bowl section. After the mechanism is opened and the siphon action is generated to discharge sewage and dirt in the bowl section, the bowl valve mechanism and the jet valve mechanism are closed for a predetermined period of time, and then the bowl valve mechanism is closed again to the predetermined position. 1. A flushing water supply device for a toilet bowl, characterized in that it is provided with a control device that controls the toilet bowl to be in an open state for a period of time.