JP2637776B2 - Toilet flush water supply method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flush water supply method for a toilet provided with a jet ejection section for generating a siphon action in a trap drainage channel.

(Prior Art) It has been conventionally known that when washing water is supplied from a jet ejection part to a trap drainage channel, air in a washing water supply pipe is discharged to generate a siphon action more efficiently. For example, in an apparatus disclosed in Japanese Patent Publication No. 61-42057, a ventilation pipe is provided in a washing water supply pipe to discharge air.

(Problems to be Solved by the Invention) However, the provision of the exhaust pipe has a problem that the structure of the device is complicated and the installation work requires much labor.

An object of the present invention is to solve such a problem and to provide a washing and water supply method for efficiently generating a siphon action in a trap drainage channel without providing an exhaust pipe or the like.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention relates to a flush water supply method for a toilet bowl for supplying flush water for generating a siphon action to a jet ejection section, wherein a small flow rate of washing is supplied to the jet ejection section. A step of supplying water to discharge air in the cleaning water supply path, and a step of supplying a flow of cleaning water necessary for generating a siphon action, and first supplying a small flow of cleaning water. Then, the air in the washing water supply path is discharged, and then the washing water is supplied at a flow rate necessary for generating the siphon action.

(Operation) By supplying a small amount of cleaning water, the air in the cleaning water supply path is discharged from the jet outlet through sealing water.
Next, the washing water is supplied at a flow rate necessary for generating the siphon action, so that a siphon action is generated in the trap drainage channel, and sewage and waste are discharged.

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

FIG. 1 is a configuration diagram of a toilet flushing / water supply apparatus to which the toilet flushing / water supplying method according to the present invention is applied. In the figure, reference numeral 1 denotes a toilet bowl, which has a bowl water supply port 1c for supplying flush water to a bowl section 1b via a rim section 1a and a jet for supplying flush water to a jet ejection section 1d. Water inlet
1e is provided. The drain hole of the rim 1a is provided slightly oblique to the bowl 1b, and water discharged from the rim 1a spirally flows on the bowl surface to generate a vortex.

The bowl water supply port 1c is connected to one end of a bowl valve mechanism 3 by a connection pipe 2, and the other end of the bowl valve mechanism 3 is connected to a water supply pipe 5 via a bowl flow sensor 4.

The water supply pipe 5 is branched on the way, connected to the jet flow sensor 6 by a branch water supply pipe 5a,
The washing water supply pipe 8 is connected to the jet water supply port 1e via the, and forms a washing water supply path to the jet ejection part 1d.

In this embodiment, the bowl valve mechanism 3 is constituted by a solenoid valve,
This electromagnetic valve is one that opens when a predetermined voltage is applied.

Bowl flow sensor 4 and jet flow sensor 6
Outputs an electric signal proportional to the flow rate, for example, has an impeller that rotates in proportion to the flow rate, electromagnetically detects the rotation, and outputs a corresponding electric signal.

The flow control means 7 is a valve mechanism that can change the flow in proportion to the applied voltage value. Note that the flow rate control means 7 may have a configuration in which two solenoid valves are provided in parallel, and one connection pipe diameter is made sufficiently small to switch the flow rate in two stages. Further, the bowl valve mechanism 3 and the flow rate control means 7 may be constituted by a piezoelectric actuator or the like in addition to the above.

As shown in FIG. 2, the control device 9 includes a microprocessor 9a, a memory 9b, an input interface circuit 9c, and an output interface circuit 9d.

The input interface circuit 9c is connected to a start signal line 10a from the start input unit 10, and flow signal lines 4a and 6a from the bowl flow sensor 4 and the jet flow sensor 6.

The output interface circuit 9d is connected to a bowl signal line 3a for opening and closing the bowl valve mechanism 3 and a flow control line 7a for driving the flow control means 7.

The start input unit 10 includes a start switch (not shown) for starting the cleaning of the apparatus. Opening and closing of the start switch is transmitted to the control device 9 via a start signal line 10a.

In addition to the manual operation of the switch and the like, the activation input unit 10 allows the toilet user to use the toilet 1 by using, for example, a photoelectric sensor.
The configuration may be such that a start signal is automatically generated after a predetermined time when the user leaves the terminal.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. 3 and the time chart of FIG. Incidentally, in FIG. 3, S1 to S7 indicate each step of the flowchart.

In response to a start signal from the start input unit 10, the control device 9 drives the bowl valve mechanism 3 to the open state (step S1). When the bowl valve mechanism 3 is opened, the washing water in the water supply pipe 5 is supplied to the bowl part 1b through the rim part 1a of the toilet bowl 1, and the bowl part 1b is washed. At this time, the water drained from the rim 1a generates a vortex in the bowl 1b, and the water level in the bowl 1b rises.

Next, the control device 9 drives the flow control means 7 to a small flow water supply state (step S2). Thereby, the washing water of the water supply pipe 5 is supplied to the jet ejection part 1d. The supplied washing water flows out from the jet jet 1d to the sealing water 1f side of the bowl portion 1b, and the air in the washing water supply pipe 8 and the communication portion 1g between the jet water supply port 1e and the jet jetting portion 1d is jetted. The air is exhausted from the ejection part 1d to the bowl part 1b side.

The control device 9 integrates the amount of water supplied to the bowl portion 1b based on the flow rate signal of the bowl flow rate sensor 4, and switches the bowl valve mechanism 3 when cleaning water is supplied to a preset amount. Drive to closed state.

Next, the controller 3 drives the flow control means 6 to the maximum flow state (step S4). As a result, the washing water is jetted from the jet jetting portion 1d toward the trap drainage channel 1h, and a siphon action is generated in the trap drainage channel 1h. Due to the occurrence of the siphon action, the accumulated water and waste in the bowl portion 1b are discharged while swirling through the trap drainage channel 1h.

The amount of water required to generate the siphon action varies depending on the structure and shape of the toilet. For this reason, in the present embodiment, the water amount data necessary for generating the siphon action is set in the memory unit 9b of the control device 9 in advance. The microprocessor 9a calculates the amount of water supply to the jet ejection part 1d based on the flow signal from the jet flow sensor 6, compares the calculation result with the above-mentioned water amount data, and stops the water supply of the flow control means 7. Control. Instead of using the flow rate signal, the water supply time required for siphon generation may be set in the memory unit 9b in advance, and the water supply time may be controlled by timer means or the like in the microprocessor 9a.

Even after the supply of water to the jet ejection part 1d is stopped, the siphon action continues, and the accumulated water in the bowl 1b is discharged until the water level reaches a predetermined level.

The control device 9 drives the bowl valve mechanism 3 to be in the open state again for a predetermined time after the preset siphon operation duration time has elapsed. Thus, the bowl portion 1b of the toilet 1 is sealed, and a series of washing is completed.

In this embodiment, as shown in FIG.
And the timing at which water supply to the jet ejection section 1d is started almost simultaneously. However, the water supply timing can be changed, for example, water supply to the jet ejection section 1d is performed after water supply to the bowl section 1b is stopped.

(Effects of the Invention) As described above, the flush water supply method for a toilet according to the present invention exhausts the air in the flush water supply path to the jet ejection portion by supplying a small flow of flush water, and thus the vent pipe. There is no need to provide a special exhaust structure.

Furthermore, since a small amount of washing water generates a water amount from the jet ejection part toward the trap drainage channel, the siphon effect can be efficiently generated when the water supply amount increases.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a toilet flushing / water supply apparatus to which the toilet flushing / watering method 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 the present embodiment, FIG. Is the same time chart. In the drawings, 1 is a toilet bowl, 1b is a bowl portion, 1c is a bowl water inlet, 1d is a jet outlet, 1e is a jet water inlet, 5 is a water supply pipe, 6 is a jet flow sensor, and 7 is a flow control means. , 9 are control devices.

Claims (1)

(57) [Claims] 1. A flush water supply method for a toilet bowl for supplying flush water for generating a siphon action to a jet ejection section, comprising: supplying a small flow of flush water to the jet eject section; And a step of supplying flush water at a flow rate necessary for generating a siphon action.