JP2811927B2 - Toilet flush water supply - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement in a flush water supply device for supplying a prescribed amount of flush water to a toilet in a prescribed sequence.

(Prior Art) The present applicant discloses in Japanese Patent Application Laid-Open No. Hei 2-35131 the pre-cleaning water supply to a bowl portion, the main cleaning water supply to a jet portion for generating a siphon action, and the sealing water supply to a bowl portion in this order. A cleaning water supply device that supplies water and controls the amount of each water supply so as to save water and perform effective cleaning has been proposed.

(Problems to be Solved by the Invention) Since a conventional cleaning water supply apparatus performs a series of cleaning water supply when a cleaning start (start) input is given, a new cleaning start input operation is performed during this cleaning water supply. What to do when it becomes a problem Conventionally, from the viewpoint of water saving, there are many devices configured to not receive this new cleaning start input,
Further, there is a cleaning water supply device (with a so-called continuous cleaning prohibition function) in which the next cleaning water supply is not performed until a predetermined time has elapsed from the time when a series of cleaning water supply is completed in order to save water.

However, if the main cleaning for discharging waste and sewage is completed and a new cleaning start input is not received even while water is being supplied to the bowl of the toilet for sealing, if the main cleaning is performed after the main cleaning, In order to discharge the paper and the like charged into the bowl portion, the user must wait for the completion of the sealed water supply operation before operating the washing start button or the like, which is troublesome. However, if a new cleaning start input during sealing water supply is received and a series of cleaning water supply is performed, a certain amount of water is supplied to the bowl portion for sealing and a predetermined amount of water is further supplied. Since the pre-cleaning water supply is performed, it is not desirable from the viewpoint of water saving.

The present invention has been made to solve such contradictory problems, and an object of the present invention is to provide a cleaning water supply apparatus capable of re-washing without waiting for completion of sealed water supply and saving water. It is in.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the flush water supply device for a toilet according to the present invention, when a new flush start input is given during the closed water supply, the closed water already supplied. After performing a predetermined amount of pre-cleaning water supply assuming that the amount of water supplied for the pre-cleaning is a water supply amount for the pre-cleaning, it is provided with continuous cleaning control means for supplying a predetermined amount of water in the order of main cleaning and sealing water. Features.

(Operation) The next cleaning water supply can be started without waiting for the completion of the sealed water supply. In this case, the continuous water supply control means regards the water supply amount for sealing water that has already been supplied as the water supply amount for the pre-cleaning, and when the predetermined pre-cleaning water supply amount is reached, the main cleaning,
Since water is supplied for sealing, the washing time can be reduced and water can be saved.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional view of a toilet provided with a water supply device according to the present invention.

The toilet bowl 1 has a bowl part 3 partitioned by a partition wall 2 and a trap drainage channel 4. The trap drainage channel 4 connects an inflow port 5 formed in the lower part of the rear wall of the bowl portion 3 and an outflow port 6 formed in the bottom surface of the toilet bowl 1 in a substantially U-shaped manner.

A rim water passage 8 is provided on the rim 7 at the upper peripheral edge of the bowl 3.
Are formed in an annular shape so as to protrude inward of the bowl portion 3, and rim water injection holes 9 are formed obliquely with respect to the bowl portion 3 at appropriate intervals on the bottom surface of the rim water passage 8. The rim water passage 8 communicates with a rim water supply chamber 10 at the rear, and a rim water supply port 11 is provided on the upper surface of the rim water supply chamber.

A jet nozzle 12 is provided at the bottom of the bowl part 3
13 is attached so as to point to the inlet 5 of the trap drainage channel 4. A box 14 is provided above the rear part of the toilet 1, and a washing water supply device 15 is housed in the box 14.

The cleaning water supply device 15 is provided on a downstream side of the control device 16, an operation unit 17 for giving a cleaning start input to the control device 16, valve mechanisms 18 and 19 for rims and jets, and valve mechanisms 18 and 19. Provided are rim and jet flow meters 20, 21 and atmosphere release valves 22, 23. The water supply pipe 24 is branched or branched and connected to one end of each of the valve mechanisms 18 and 19. The other end of the rim valve mechanism 18 is connected to the rim water supply port 11 of the rim water supply chamber 10 via a rim flow meter 20 and an atmosphere release valve 22. The other end of the jet valve mechanism 19 is connected to a jet water supply port 26 of the jet nozzle 12 via a jet flow meter 21, an atmosphere release valve 23, and a jet water supply pipe 25. The jet water supply pipe 25 is formed of a metal / synthetic resin or synthetic rubber pipe, and the bowl section 3 is formed so that the length of the water supply pipe is reduced.
Are located along the bottom of the

Next, the configuration of the cleaning water supply device will be described with reference to the block configuration diagram of FIG.

The control device 16 includes an input interface circuit (hereinafter referred to as an input interface).
16a, microprocessor (hereinafter referred to as MPU) 16
b, a program memory (hereinafter referred to as ROM) 16c in which water supply order and water supply amount data to each section are stored in advance, and an output interface circuit (hereinafter referred to as output I / F) 16d.

The operation unit 17 includes a switch for starting the cleaning, and the opening / closing information of this switch is input via the input I / F 16a.
Input to the input port of MPU16b. The operation unit 17 may be provided with two types of cleaning start switches, large and small, so that the supply amount of cleaning water can be selected.

Rim and jet flowmeters 20 and 21 use impeller type flowmeters. The flow meters 20, 21 have magnets attached to the impeller, detect rotation of the impeller in an electromagnetic device, and output an alternating voltage having a frequency proportional to the rotation of the impeller as a flow signal. Each flow signal is converted into a pulse signal having a predetermined amplitude and pulse width proportional to the frequency of the flow signal by a waveform conversion circuit (not shown) in the input I / F 16a and supplied to the input port of the MPU.

The rim and jet valve mechanisms 18, 19 are connected to the output port of the MPU 16b via the output I / F 16d. Each valve mechanism 1
Reference numerals 8 and 19 denote electromagnetic on-off valves, each of which is opened when a predetermined voltage is applied.

 FIG. 3 is an operation flowchart of the cleaning water supply device.

When the cleaning start input is given in the standby state, the controller 16
Drives the rim valve mechanism 18 to the open state (S1). As a result, the washing water is supplied to the rim water supply port 11-the rim water supply chamber 10-the rim water passage 8.
Is supplied from the plurality of rim water injection holes 9 to the bowl portion 3 through the rim, and the swirl is given to the stored water 27 in the bowl portion 3 to wash the wall surface of the bowl portion 3 (pre-washing).

The MPU 16b counts the pulse signal related to the flow signal from the rim flow meter 20, and when the count value matches the pre-wash water supply amount data registered in advance in the ROM 16c (S2), The jet valve mechanism 18 is closed (S3), and then the jet valve mechanism 19 is driven to the open state (S4).

As a result, the washing water is supplied to the jet nozzle 12 through the jet water supply pipe 25, and the washing water is ejected from the injection hole 13 into the trap drain passage 4. The injected washing water flows into the discharge channel 4b over the weir portion 4a of the trap drain channel 4, and
The air in the trap water channel 4 is discharged from the outlet 6 to a drain pipe (not shown) while entraining the air in the trap water channel 4. For this reason, the inside of the trap drainage channel 4 becomes a negative pressure with respect to the atmospheric pressure, the pool water 27 in the bowl portion 3 is drawn into the trap drainage channel 4, and the inside of the trap drainage channel 4 is filled with the washing water. A complete siphon state is established, and waste and wastewater in the bowl portion 3 is discharged.

The MPU 16b counts the amount of water supplied to the jet nozzle 12 based on the flow signal from the jet flow meter 21.
When the data on the main cleaning water supply amount stored in the ROM 16c matches the data (S5), the jet valve mechanism 19 is driven to the closed state (S6), and then the rim valve mechanism 18 is again opened. When driven (S7), water is supplied to the bowl portion 3 for sealing, and the data relating to the sealed water supply amount stored in advance in the ROM 16c matches the count value of the flow signal from the rim flow meter 20. At this point (S9), the rim valve mechanism 18 is driven to the closed state (S10), and a series of cleaning operations is completed.

When the controller 16 receives a cleaning start input from the operation unit 17 and starts a series of cleaning operations, it does not receive a new cleaning start input until the main cleaning is completed.
Then, when a new cleaning start input is given to the sealed water supply (S7 and thereafter) (S8), the water supply amount for the sealed water supplied at that time is made equal to the water supply amount for the pre-cleaning. Assuming that the flow proceeds to step S2, the main cleaning and sealed water supply after step S3 are performed when the pre-cleaning water supply amount is supplied.

With the above configuration, as shown in the operation time chart of FIG. 4, in the normal cleaning operation, a predetermined amount of water is supplied to each part in the order of pre-cleaning, main cleaning, and sealed water supply. When a new cleaning start input is given, a series of cleaning operations is performed by regarding the amount of water already supplied to the bowl portion 3 for sealing as the amount of water for pre-cleaning.

Therefore, after the completion of the main cleaning water supply, the continuous cleaning operation can be performed, and the pre-cleaning time can be shortened to save water.

Note that a new cleaning start input may be accepted in the main cleaning water supply, and the main cleaning water supply may be immediately followed by step S1 to perform a series of cleaning operations.

Further, in this embodiment, the configuration including the two flowmeters 20 and 21 for the rim and the jet has been described. However, in the configuration in which the pre-cleaning water supply and the main cleaning water supply are not performed simultaneously, the water supply pipe 24 is not provided.
A configuration in which one flow meter is provided on the side may be employed. Alternatively, a pressure sensor may be provided in the water supply pipe 24 without using a flow meter, and a predetermined amount of water may be supplied to each unit by controlling a water supply time (valve opening time) according to the water supply pressure.

Further, in this embodiment, the continuous cleaning control means is controlled by the control device 16.
Although it is composed of the MPU 16b and the ROM 16c storing the control program, the continuous cleaning control means may be composed of a sequential circuit or the like using a digital logic circuit.

(Effect of the Invention) As described above, the flush water supply device for a toilet according to the present invention regards the amount of water already supplied for sealing when a new flush start input is given during sealing. After a predetermined amount of pre-cleaning water supply, continuous cleaning is performed in the order of main cleaning and sealing water, so that the next cleaning operation can be performed without waiting for completion of sealing water supply and the pre-cleaning time Can be reduced and water can be saved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a toilet provided with a flush water supply device according to the present invention, FIG. 2 is a block diagram of the flush water supply device, FIG.
The figure is an operation flowchart of the cleaning water supply apparatus, and FIG. 4 is a time chart of the cleaning water supply. 1 ... toilet bowl, 3 ... bowl section, 3 ... trap drainage channel,
9: Rim water injection hole, 12: Jet nozzle, 15: Cleaning water supply device, 16: Control device, 16b: Microprocessor (MPU), 16c: Memory (ROM), 17: Operation unit 1
8… Rim valve mechanism, 19… Jet valve mechanism, 20 ……
Flow meter for rim, 21 ... Flow meter for jet, 24 ... Water supply pipe.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hirofumi Takeuchi 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Inside the Toga Kikai Co., Ltd. Chigasaki Plant (72) Toshio Ikimi 2-81-1, Honmura, Chigasaki-shi, Kanagawa Prefecture No. Tochiki Kiki Co., Ltd. Chigasaki Plant (58) Field surveyed (Int.Cl. ⁶ , DB name) E03D 5/10 E03D 11/02

Claims (1)

(57) [Claims] 1. A pre-cleaning, a main cleaning, and a cleaning
When a new flushing start input is given to a flush water supply device for a toilet bowl that supplies a predetermined amount of water in the sealing water order in advance, the amount of water already supplied for the flush water is pre-cleaned. A continuous flushing control means for performing a series of flushing water supply as a water supply amount for the toilet.