JPH0235132A - Stool wash water supply device - Google Patents

Abstract

PURPOSE:To generate a syphon effect efficiently by supplying a small amount of wash water to a jet area, and supplying the required amount of wash water to generate a syphon effect after air within wash water supply passage is discharged. CONSTITUTION:A valve mechanism 3 for a bowl is driven by a controller 9 to become a closed condition according to a signal from a starting input area 10. And the valve mechanism 3 is opened to supply wash water in a water supply pipe 5 to the bowl area 1b of a stool 1 and clean the bowl area 1b. Then when a flow rate control means 7 is controlled by the controller 9 so as to become such a condition that a small amount of flow rate is supplied, wash water is supplied to a jet area 1d. And the wash water is jetted out from the jet area 1d toward the side of the water sealing 1f of the bowl area 1b. At the same time, air within a wash water supply pipe 8 and a joint area 1g between a water supply port 1e for a jet and the jet area 1d is discharged from the jet area 1d toward the side of the bowl area 1b. And when the flow rate control means 7 is driven by the controller 9 to become a maximum flow rate condition, the wash water is jetted out from the jet area 1d toward a trap drainage passage 1h so that a syphon effect can be available.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a flushing water supply device for a toilet bowl, which is equipped with a jet ejection section that generates a siphon effect in a trap drainage channel.

(Prior Art) It has been conventionally known that when supplying wash water from a jet outlet to a trap drainage channel, air in the wash water supply pipe is discharged to generate a siphon effect more efficiently. For example, in the device disclosed in Japanese Patent Publication No. 61-42057, a ventilation pipe is provided in the washing water supply pipe to exhaust air.

(Problems to be Solved by the Invention) However, providing an exhaust pipe complicates the structure of the device and requires a lot of effort for installation.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and provide a cleaning water supply device that efficiently generates a siphon effect in a trap drainage channel without providing an exhaust pipe or the like.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a flow rate control means in a cleaning water supply path that supplies cleaning water to the jet ejection part,
First, a small flow rate of wash water is supplied to discharge air in the wash water supply path, and then a flow rate of wash water necessary to generate a siphon effect is supplied.

(Function) By supplying the alternating current amount of washing water, the air in the washing water supply path is discharged from the jet outlet through the water seal. Next, wash water is supplied at a flow rate necessary to generate a siphon effect, so a siphon effect occurs in the trap drainage channel, and sewage and filth are discharged.

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

FIG. 1 is a diagram showing the structure of a toilet bowl cleaning device according to the present invention. In the figure, reference numeral 1 denotes a toilet bowl, and the toilet bowl 1 includes a bowl water supply port IC for supplying cleaning water to the bowl part 1b via the rim part 1a, and a jet for supplying cleaning water to the jet spouting part 1d. A water supply port 1e is provided. Further, the drainage hole of the rim portion 1a is provided slightly obliquely with respect to the bowl portion 1b, and the water drained from the rim portion 1a generates a vortex by flowing spirally on the bowl surface.

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

The water supply pipe 5 is branched in the middle, connected to a jet flow rate sensor 6 through a branch water supply pipe 5a, and further connected to a flow rate control means 7.
The cleaning water supply pipe 8 is connected to the jet water supply port 1e via the cleaning water supply pipe 8, thereby forming a cleaning water supply path to the jet spouting portion 1d.

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

The bowl flow rate sensor 4 and the jet flow rate sensor 6 output an electric signal proportional to the flow rate, and have, for example, an impeller that rotates in proportion to the flow rate, and electromagnetically detects the rotation of the impeller and outputs a corresponding electric signal. Output a signal.

The flow rate control means 7 is a valve mechanism that can vary the flow rate in proportion to the applied voltage value. The flow rate control means 7 may have a configuration in which two electromagnetic valves are provided in parallel, and the diameter of one of the connecting pipes is made sufficiently thin to switch the flow rate into two stages. Further, the bowl valve mechanism 3 and the flow rate control means 7 may be configured with 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.

A starting signal line 10a from the starting human power unit 10, flow rate signal lines 4a and 6a from the bowl flow rate sensor 4 and the jet flow rate sensor 6 are connected to the human power interface circuit 9C.

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

The startup input unit 10 includes a startup switch (not shown) for starting cleaning of this device, and opening/closing of the startup switch is transmitted to the control device 9 via a startup signal line 10a.

In addition to manually operating a switch or the like, the activation unit 10 may be configured to use a photoelectric sensor, for example, to automatically generate an activation signal after a certain period of time when the toilet user leaves the toilet bowl 1.

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, 31 to S7 indicate each step of the flowchart.

The control device 9 drives the bowl valve mechanism 3 to the open state in response to the activation signal from the activation human power section 10 (step sB). is supplied to the bowl part 1b through the rim part 1a of the
The bowl portion 1b is cleaned. At this time, the water drained from the rim portion 1a generates a vortex in the bowl portion 1b, and the water level in the bowl portion 1b rises.

Next, the control device 9 drives the flow rate control means 7 to an alternating current water supply state (step S2). Thereby, the cleaning water in the water supply pipe 5 is supplied to the jet spouting section 1d. The supplied cleaning water flows out from the jet outlet 1d to the water seal 1f side of the bowl part 1b, and the air in the cleaning water supply pipe 8 and the communication part 1g between the jet water supply port 1e and the jet outlet part ld flows out from the jet outlet 1d. The air is exhausted from the spouting 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 activates the bowl valve mechanism 3 when the amount of cleaning water is supplied to a preset amount. Drive to closed state.

Next, the control device 3 drives the flow rate control means 6 to the maximum flow state (step S4). As a result, the cleaning water is ejected from the jet ejection part 1d toward the trap drainage channel 1h,
A siphon effect is generated in the trap drainage channel 1h. Due to the occurrence of the siphon action, the standing 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 a siphon effect varies depending on the structure and shape of the toilet. Therefore, in this example,
Water amount data necessary for generating the siphon action is set in advance in the memory section 9b of the control device 9. The microprocessor 9a calculates the amount of water to be supplied to the jet jet section 1d based on the flow rate signal from the jet flow rate sensor 6, compares this calculation result with the water amount data described above, and controls the flow rate control means 7 to stop the water supply. Control. In addition, without using the flow rate signal, the water supply time required for siphon generation is set in advance in the memory section 9b,
The water supply time may be controlled by a timer means or the like within the microprocessor 9a.

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

The control device 9 has a preset siphon effect 1! After the duration of time has elapsed, the bowl valve mechanism 3 is again driven to the state for a certain period of time. As described above, the bowl part 1b of the toilet bowl 1
is sealed and a series of cleaning steps are completed.

In this embodiment, as shown in FIG.
Although the timing is such that the water supply starts almost simultaneously to the jet spouting part 1d, the timing of water supply can be changed, for example, by supplying water to the jet spouting part 1d after stopping the water supply to the bowl part 1b.

(Effects of the Invention) As explained above, the toilet bowl cleaning water supply device according to the present invention exhausts the air in the cleaning water supply path to the jet jet section by supplying a small amount of cleaning water. There is no need to provide a special exhaust structure such as.

Furthermore, since the small flow of washing water generates the amount of water flowing from the jet ejection section to the trap drainage channel, a siphon effect can be efficiently generated when the amount of water supplied increases.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the cleaning water supply device according to the present invention, FIG. 2 is a block diagram of the same, FIG. 3 is a flow chart showing the operation of this embodiment, and FIG. 4 is a time chart of the same. In the drawings, 1 is a toilet bowl, 1b is a bowl part, 1c is a bowl water supply port, 1d is a jet spout, 1e is a jet water spout, 5 is a water supply pipe, 6 is a jet flow rate sensor, and 7 is a flow rate control means. , 9 is a control device.

Claims (1)

[Scope of Claims] In an apparatus provided with a wash water supply path for independently supplying wash water to a jet ejection part for generating a siphon effect, the flow rate of the wash water flowing through the wash water supply path is adjusted. A flow rate control means is provided to supply a small flow rate of cleaning water to the jet ejection section to discharge air in the cleaning water supply path, and then supply a flow rate of cleaning water necessary to generate a siphon action. A toilet bowl cleaning water supply device characterized in that: