JP2758667B2 - Cleaning water supply device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for independently supplying wash water to a plurality of water supply ports of a toilet, and in particular, to a wash water supply apparatus capable of setting a supply order of wash water. On the road.

(Prior Art) Japanese Patent Publication No. 55-30092 discloses a flush water supply device for independently supplying flush water to a trap drainage channel and a rim water supply channel of a toilet bowl.

This device is provided with two solenoid valves, and the control device controls opening and closing of each solenoid valve to supply water to the trap drainage channel and then to the rim water channel.

(Problems to be Solved by the Invention) As described above, in the conventional flush water supply apparatus, since the order of water supply is set in advance, for example, first, water is supplied to the rim water supply passage to clean the bowl portion of the toilet bowl, and then, The control device must be replaced when water is supplied to the trap drainage channel to discharge contaminated water, and then the water is again supplied to the rim water supply channel to seal the bowl portion.

In addition, in the case where a swirl water supply port for swirling the stored water in the bowl portion is provided in addition to the trap drainage channel and the rim water supply channel, the number of combinations of the water supply order of the wash water becomes large, and the control device is set in accordance with each of them. Preparing is inefficient.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a cleaning water supply apparatus capable of arbitrarily setting a water supply order.

(Means for Solving the Problems) In order to solve the above problems, a flush water supply apparatus according to the present invention is characterized in that the control device includes a water supply order setting means for setting a water supply order to a plurality of water supply ports. .

The water supply order setting means may be configured to select an arbitrary one from a plurality of water supply orders preset in the control device.

Further, the water supply order setting means may be configured to be able to set the water supply time and the water supply stop time.

Further, the control device may be provided with a water supply order setting means for setting the amount of washing water to be supplied to the plurality of water supply ports for each water supply port.

(Operation) Based on the flushing start input, the control device supplies the flush water to each part of the toilet according to the flushing order set by the flushing order setting means.

When a plurality of water supply orders are set in advance in the control device, any one of them may be selected, so that setting of the water supply order is easy.

Moreover, if it is comprised so that a water supply time and a water supply stop time can be set, a suitable water supply condition can be set according to the kind and installation conditions of a toilet.

Further, by providing a means for setting a water supply amount for each water supply port, both water saving and reliable cleaning can be achieved.

(Example) Hereinafter, an example of the present invention is described based on an accompanying drawing.

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

In the figure, a toilet 1 has a bowl portion 3 and a trap drainage channel 4 partitioned by a partition wall 2. The trap drainage channel 4 connects an inflow port 5 opened in the lower part of the rear wall of the bowl portion 3 and an outflow port 6 opened in a substantially central bottom surface of the toilet bowl 1 in a substantially inverted U-shape. The drainage channel 4b downstream of the weir portion 4a of the trap drainage channel 4 is formed in a substantially straight pipe shape. And a constricted portion in which the diameter of the tube wall is reduced inward near the outlet 6 at the lower end thereof.
4c is provided, and a plurality of projections 4e are spirally arranged at predetermined intervals on the pipe wall of the discharge path 4b as shown in FIG.

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

A bowl water supply chamber 12 is defined below the rim water supply chamber 10 and the top of the trap drainage channel 4, and a turning water supply port 13 is formed in the upper surface of the bowl water supply chamber 12. In addition, bowl water supply room
The front end of 12 extends downward along the bowl portion 3 and communicates with a plurality of bowl water injection holes 15 provided so as to go around the inside of the bowl below the water sealing surface 14 of the bowl portion 3.

The bowl water injection holes 15 form a bowl water passage 16 surrounding the bowl portion in the bowl wall surface.
It is provided with a plurality of water injection holes which penetrate the bowl 16 and the bowl surface.

Each of the plurality of bowl water holes 15 is formed in the same direction as the inclination direction of the rim water hole 9, and the bowl water 3 is directly blown into the bowl portion 3 by the force of the washing water injected from the bowl water holes 15. The circulating water 17 is swirled to promote a vortex generated by the water supply from the rim spray holes 9 to generate a strong vortex.

Note that the bowl water passage 16 provided in the bowl portion wall surface may have a structure in which a pipe made of metal, synthetic resin, or the like having a plurality of holes is buried.

A jet nozzle 18 is attached to the bottom of the bowl 3 so that the jet orifice 19 faces the inlet 5 of the trap drain 4.

A box 20 is provided above the rear part of the toilet 1, and a washing water supply device 21 is housed in the box 13. Cleaning water supply device
Reference numeral 21 denotes a control device 22, an operation unit 23 for giving a cleaning start input to the control device 22, and each valve mechanism for rim, swivel, and jet.
26, 27, 28 and atmosphere release valves 29, 30.

One end of the rim valve mechanism 26 is connected to the water supply pipe 24, and the other end is connected to the rim water supply port 11 of the rim water chamber 10. Swivel valve mechanism 27
Is connected to a water supply pipe 24, and the other end is connected to a turning water supply port 13 through an atmosphere release valve 29. One end of the jet valve mechanism 28 is connected to a water supply pipe, and the other end is an atmosphere release valve 30 and a jet water supply passage 31 made of metal, synthetic resin, synthetic rubber, or the like.
To the jet water supply port 32 of the jet nozzle 19.

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

The control device 22 includes an input interface circuit 22a, a microprocessor (MPU) 22b, a memory 22c, a timer 22d, and an output interface circuit 22e. An operation unit 23 is connected to the input interface circuit 22a, and each valve mechanism 2 for rim, swivel, and jet is connected to the output interface circuit 22e.
6,27,28 are connected.

The operation unit 23 includes a switch for starting the flushing of the toilet 1, and opening and closing of this switch is performed by a start signal line 23a.
Is input to the control device 22.

The operation unit 23 may be provided with a plurality of operation buttons so that the supply amount of the cleaning water can be selected. In addition, a switch or a sensor for detecting a seat is provided, and these signals are input to the control device to enable the operation of the operation unit 23 only in the seated state, or to perform a predetermined operation after the seated state is changed to the unseated state. A configuration in which cleaning is automatically started after a lapse of time may be employed.

Each of the rim, turning, and jet valve mechanisms 26, 27, and 28 is constituted by an electromagnetic valve, and the electromagnetic valve is used to open when a predetermined voltage is applied. 26a, 27a, 28a are each valve mechanism 2
These are signal lines for driving 6, 27 and 28, respectively.

In the present embodiment, the water supply order setting means 33 includes a water supply order setting switch 33a, a water supply / stop time selection switch 33b, a water supply time registration switch 33c, and a stop time registration switch 33d. The water supply order setting switch 33a is composed of a 3-bit switch or a digital switch, and the water supply / stop time selection switch 33b is composed of a 4-bit switch or a digital switch. Each of the water supply time registration switch 33c and the stop time registration switch 33d is configured by one make switch.

A plurality of water supply order patterns are registered in the memory 22c in advance. In the present embodiment, eight types of water supply order patterns described later are registered, and the water supply order setting switch 33a is configured to select any one of the eight types.

FIG. 4 is a time chart showing an example of a water supply order pattern registered in advance.

In the present embodiment, the water supply order patterns (a) to (h) are provided so that the water supply port can correspond to one, two, and three various toilets. In addition, the water supply order patterns (a) to
In (h), a standard water supply time is set in advance, and the water supply order pattern suitable for a toilet to be supplied with water is simply selected at the time of installation or the like.

Further, the control device 22 of the present embodiment is configured so that the water supply time and the water supply time of the standard water supply order pattern can be changed, and the setting change is performed by the water supply / stop time selection switch 33b and the water supply time and the stop time. Registration switch 33d
Is configured to be performed in combination. The water supply / stop time selection switch 33b allows the time from 0 to 3 seconds to be set in units of 0.2 seconds in accordance with the ON / OFF of each bit. For example, when the water supply sequence pattern shown in FIG. 4 (g) is selected to change the water supply and stop time, the change setting mode is set by simultaneously pressing both the water supply time registration switch 33c and the stop time registration switch 33d. Is switched to. Then, after selecting the water supply time to the rim portion with the water supply / stop time selection switch 33b, the water supply time registration switch 33c is pressed down. Then, the water supply stop time is set by the stop time registration switch 33d, and finally the sealed water supply time to the rim portion is set. The setting contents are stored in the memory 22c.

Next, the operation of the present embodiment will be described with reference to the time chart of FIG. 5 and the flowchart of FIG. 6, taking the water supply sequence pattern shown in FIG. 4 (g) as an example. In addition, in the flowchart of FIG. 6, S1 to S8 indicate each step of the flowchart. Also, for convenience of explanation, the rim valve mechanism 26,
The turning valve mechanism 27 and the jet valve mechanism 28 are referred to as a rim valve, a turning valve, and a jet valve, respectively.

In response to the activation signal from the operation unit 23, the control device 22 opens the rim valve 26 (S1). As a result, the washing water is supplied to the bowl portion 3 from the rim spray hole 9 to wash the wall surface of the bowl portion 3 and generate a vortex in the stored water 17.

The control device 22 drives the rim valve 26 to open and, at the same time, starts the timer 22d, and when a preset bowl portion pre-cleaning time elapses (S2), the control device 22 closes the rim valve 26. (S3), the swing valve 27 is driven to the open state (S3).
4) Yes. Thereby, the bowl 3 from the bowl spray hole 15
The washing water is sprayed into the inside, and the vortex of the pool water 17 in the bowl portion 3 is increased. When a predetermined turning water supply time has elapsed (S5), the control device 22 closes the turning valve 27 (S6) and drives the jet valve 28 to open (S7).

As a result, the front line of the bowl portion 3 is completed, and the washing water is injected into the trap drainage channel 4 from the jet injection hole 19 of the jet nozzle 18. The washing water injected into the trap drainage channel 4 flows into the drainage channel 4b over the weir portion 4a, collides with the projection 4e formed in the discharge portion 4b, and changes the flow to the entire inside of the pipe of the drainage channel 4b. It flows down almost uniformly throughout. The washing water generates a water seal in the throttle 4c provided near the outlet 6, and the air in the trap drain passage 4 is discharged from the outlet 6 to the drain pipe (not shown) together with the washing water. For this reason, a negative pressure is generated in the trap drainage channel 4, and the pooled water 17 in the bowl portion 3 is drawn into the trap drainage channel 4, and the trap drainage channel 4 is in a completely siphon state filled with washing water. Becomes

The controller 22 drives the jet valve 28 to be closed (S9) when a preset jet water supply time has elapsed (S8).

Next, the control device 22 stops water supply for a preset water supply stop time. (S10).

On the other hand, even after the jet valve 28 is closed, the siphon action in the trap drainage channel 4 continues and the bowl portion 3
The waste and sewage etc. in the inside are discharged together with the stored water.

After the lapse of the water supply stop time, the control device 22 drives the rim valve 26 to the open state again (S11). Thus, the sealing of the bowl portion 3 is started. Next, the control device 22 drives the rim valve 26 to a closed state when a preset sealing water supply time has elapsed (S13).

Through the above steps S1 to S13, a series of cleaning water supply shown in the time chart of FIG. 5 is completed.

Next, another embodiment of the present invention will be described with reference to FIG. 7 and FIG.

FIG. 7 is a vertical sectional view of a toilet similar to that of FIG. 1, and FIG. 8 is a block diagram of a flush water supply device. Hereinafter, only differences from the first embodiment will be described.

The cleaning water supply device 34 includes an impeller-type flow meter 25 on the upstream side of each of the valve mechanisms 26, 27, and 28. The flow meter 25 has a magnet attached to the impeller, and outputs an alternating voltage having a frequency proportional to the rotation of the impeller as a flow signal. The flow meter 25 may be an electromagnetic flow meter or the like. As shown in FIG. 8, the flow rate signal input to the input interface circuit 35a in the control device 35 through the flow rate signal line 25a is subjected to waveform conversion in the input interface circuit 35a, and has a period proportional to the frequency of the flow rate signal and The signal is converted into a pulse signal having a predetermined amplitude and a predetermined pulse width, and is input to the microprocessor 22b.

The water supply order setting means 36 of the present embodiment includes a water supply point setting switch 36a, a water supply amount setting switch 36b, and a registration switch 36c.
And The water supply point setting switch 36a is composed of a 2-bit switch or a digital switch.
In response to turning off, the water supply destination is selected from the rim, the bowl, and the jet, or the water supply is stopped. The water supply amount setting switch 36b is composed of a 4-bit switch or a digital switch, and sets the water supply amount up to a maximum of 7.5 in 0.05, 1,..., 0.05 units in accordance with ON / OFF of each bit. . Registration switch 36
c is composed of one make switch, and this registration switch 36c
To set the water supply order. Each switch 36a-36c
Is connected to the input port of the microprocessor 35b. Each switch may be connected to a microprocessor bus as a memory map I / O.

 Next, a method of setting the water supply order will be described.

First, when the registration switch 36c is pressed, the microprocessor 35 enters a water supply order setting registration mode. Next, the water supply point setting switch 36a is set to the first water supply position, and the water supply amount at that position is further selected by the water supply amount setting switch 36b. When the registration switch is pressed in this state, data relating to the water supply location and the water supply amount is stored in the memory 35c.
This operation is sequentially repeated to set a water supply sequence pattern suitable for the toilet to be supplied with water. In this embodiment,
When the water supply point setting switch 36a selects water supply stop, the water supply amount setting switch 36b sets the water supply stop time from 0 to 15.5.
It can be set in seconds. A series of water supply sequence and water supply amount setting is configured to be completed by successively pressing the registration switch 35c twice.

With the above configuration, when a cleaning start signal is given from the operation unit 23, the control device 25 supplies the set water supply amount in the order set by the water supply order setting means 36. In addition,
The microprocessor 35b integrates the flow rate signal from the flow meter 25 to determine whether the predetermined water supply amount has been supplied.

(Effects of the Invention) As described above, the flush water supply apparatus according to the present invention includes the water supply sequence setting means, and thus includes a standard siphon-type or siphon-jet type toilet having a single water supply port, and a bowl part including a water supply port. Toilet that independently supplies water for washing and water for generating siphon action, and water for bowls before and after 2
It is possible to cope with various water supply conditions, such as when water is supplied in different times.

In addition, by storing a plurality of water supply order patterns in advance and selecting a suitable pattern from the stored patterns, setting is facilitated.

In addition, it is possible to save water by setting the water supply time and the water supply stop time.

Furthermore, by being able to set the water supply amount, it is possible to easily cope with a case where the amount supplied in one washing operation is regulated in consideration of the sewage treatment facility and the like, in addition to the water saving effect. It has the effect of.

[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 sectional view taken along line II-II of FIG. 1, FIG. 3 is a block diagram of the flush water supply device, FIG. Is a time chart showing an example of a pre-registered water supply sequence pattern, FIG. 5 is a time chart flow chart showing the operation of the cleaning water supply apparatus, FIG. 6 is the same flow chart, and FIG. 7 is a cleaning flow according to another embodiment of the present invention. FIG. 8 is a vertical sectional view of a toilet provided with a water supply device, and FIG. 8 is a block diagram of the flush water supply device. In the drawings, 1 is a toilet bowl, 3 is a bowl portion, 4 is a trap drainage channel, 11 is a rim water inlet, 13 is a bowl water inlet, 32 is a jet water inlet, 21 and 34 are washing and watering devices, 22, 35. Is a control device, and 33 and 36 are water supply order setting means.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shinji Shibata 2-8-1, Honmura, Chigasaki-shi, Kanagawa Prefecture Tochiki Kiki Co., Ltd. No. 1 In the Toga Kikai Co., Ltd. Chigasaki Plant (58) Field surveyed (Int. Cl. ⁶ , DB name) E03D 5/10 E03D 3/00 E03D 11/02 E03D 11/08

Claims (4)

(57) [Claims] A control device that drives a plurality of electrically operated valve mechanisms based on a flush start input to independently supply flush water to a plurality of water supply ports of a toilet; A cleaning water supply apparatus comprising a water supply order setting means for setting a water supply order to a water supply port. 2. The cleaning / water supply apparatus according to claim 1, wherein said water supply order setting means selects any one of a plurality of water supply orders preset in a control device. 3. The cleaning / water supply apparatus according to claim 1, wherein said water supply order setting means includes a water supply time and a water supply stop time setting means. 4. The cleaning water supply apparatus according to claim 1, further comprising a water supply amount setting means for setting the amount of cleaning water supplied to the plurality of water supply ports to the control device for each water supply port.