JPH086362B2 - Wash water discharge device for flush toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECT OF THE INVENTION <Industrial field of application> The present invention relates to a flush water discharge device suitably provided in a flush toilet with a large number of installations.

<Prior art> A tank volume-dependent type that discharges a predetermined amount depending on the volume of the cistern in the flush water discharge device of the flush toilet, and a valve structure that discharges a predetermined amount depending on the structure of the discharge valve There is a dependent form, and both are widely adopted.

<< Problems to be Solved by the Invention >> Each of the above two types has advantages and disadvantages. In other words, the tank volume-dependent type has the advantage that the discharge rate does not change over time, but on the other hand, it is subject to restrictions due to the location of the drain pipe and the structure of the toilet bowl, while the valve structure-dependent type Has the advantage of not being subject to the above restrictions of the tank volume dependent type,
On the other hand, it has a drawback that it easily changes with time. Further, the tank volume-dependent type has an advantage that it is not affected by the water pressure unlike the valve structure-dependent type, but has a drawback that a large volume cistern exists in the toilet room. The applicant developed a flush water discharge device of Japanese Patent Application No. 259344 in 1986 with the intention of avoiding the above-mentioned drawbacks in the conventional tank volume dependent type and valve structure dependent type. Figures 5 and 6 show the essential parts of the device given as an example in this patent application.

In these drawings, 1 is a toilet bowl, 2 is a toilet room, 3 is a toilet door, 4 is a flush water discharge switch provided in the toilet room, 5 is a water pipe, and 6 is an impeller type water meter. The water meter 6 is provided together with the discharge valve 8 on the flow path 7 between the flushing water supply pipe of the toilet 1 and the rotation of the water meter 6 is transmitted to the rotating disk 10 via the speed reducer 9. . The speed reduction ratio of the speed reducer 9 is selected so that the rotation angle of the rotary disk 10 when the predetermined amount of wash water is discharged is within 360 °. FIG. 6 is a plan view showing a group of reed switches 11 arranged around the circumference of the rotary disk 10 and the permanent magnets 12 attached to the rotary disk 10. Reference numeral 13 is a stationary ring body to which a reed switch 11 is attached. The reed switch 11 on the stationary ring body 13 and the permanent magnet 12 on the rotating disk 10 cooperate with each other to form a valve closing signal generator for the discharge valve 8. Form. Reference numeral 14 is a control device for the discharge valve 8. The control device 14 is provided with a rotation angle setting part (a discharge amount setting part) of the rotating disk 10, and a lead switch facing the permanent magnet 12 on the rotating disk 10 when a predetermined amount of cleaning water is discharged. The signal from 11 is regarded as valid, and the discharge valve 8 is changed from the open state to the closed state. In the setting part of the rotation angle of the rotating disk 10, the use of the toilet is "stool"
There is provided a first system for the case of No. and a second system for the case of the use of the toilet being "urine". The rotation angle set for the rotating disk 10 is 180 ° when the toilet is “stool”, 45 ° when the toilet is “urine”, or the toilet is “ 90 degrees for "feces" and 30 degrees for "piss" use. Whether the use of the toilet is "stool" or "urine" is determined when the door switch 15 is activated and the discharge switch 4
According to the time interval set for the time between the activation of

The above description relates to the wash water discharge device mentioned as an example in the patent application of Japanese Patent Application No. 259344 in 1986, that is, the wash water discharge device intended to be improved by the present invention.

In the structure shown in FIGS. 5 and 6 described above, the rotating disk 10 is rotated via the speed reducer 9 having a relatively large load resistance (resistance against rotation). It is difficult to mass-produce the water meter 6 because the measurement accuracy of the water meter 6 varies greatly due to internal leakage, and when the water meter 6 includes the speed reducer 9 having a large load resistance, the measurement error is sufficiently small. Circumstances impede the implementation of what is shown in FIGS. 5 and 6 above. The present invention is primarily aimed at avoiding this adverse condition.

B. Structure of the Invention << Means for Solving the Problem >> The present invention provides a water meter on the conduit between a discharge valve connected to a water pipe for supplying wash water and a toilet bowl, and is measured by this water meter. In a type in which a valve closing device is provided for shifting the discharge valve in the open state to the closed state when the flow rate of wash water reaches a predetermined value, A water meter for measuring the number of revolutions and a pilot valve for operating the discharge valve are provided with their outer shells integrated, and the flush water outlet for the toilet in the water meter is provided with a blade of the water meter. It is characterized by being installed in the highest part of the car casing.

The assembly including the discharge valve, the pilot valve, and the water meter of the flush water discharger according to the present invention can be provided in the toilet room with its outer shell as a mounting table for hand-held articles and the like. In that case, it is desirable to provide a switch for flushing the toilet bowl on this assembly.

<Operation> Japanese Patent Publication No. 3-60982 discloses a flush water discharge device shown in FIGS. 5 and 6. This flush water discharge device is related to the development of the applicant. In FIGS. 5 and 6, since the rotation of the water meter 6 is transmitted to the rotating disk 10 via the speed reducer 9 where it is difficult to keep the load resistance constant, the accuracy of measuring the wash water is also improved. Low. On the other hand, according to the present invention, the water meter has a structure that does not require a speed reducer that causes a decrease in metering accuracy, and the outlet for flushing water to the toilet bowl is located at the highest portion of the impeller casing of the water meter. Since the water meter is always kept in a primed state (waiting for the start of metering operation) due to the provision, the discharge of flush water to the toilet bowl can be accurately maintained at the desired value. Of. Furthermore, the flush water discharge device according to the present invention is designed to be easily installed and maintained.

<< Embodiment >> FIG. 1 is a front view showing an example of a flush water discharge device according to the present invention, FIG. 2 is a side view showing the device of FIG. 1 in a vertical cross section, and FIG. FIG. 4 is a perspective view showing the flow of washing water through the apparatus shown in FIG. 4, and FIG. 4 is a front view showing the case where the apparatus according to the present invention is provided as a shelf for holding personal belongings.

In FIGS. 1 to 3, reference numeral 31 is an inlet for washing water connected to a water pipe, and 32 is an outlet for washing water. On the flow path from the inflow port 31 to the outflow port 32, a stop valve 33, a strainer 34, a discharge valve 35, and a water meter 37 for measuring the amount of flowing water by the rotation speed of an impeller 36 are provided in an outer shell case 38. Are integrated. 39 is a pilot valve for opening and closing the discharge valve 35. A flush water discharge assembly 40 including an inlet 31, a stop valve 33, a strainer 34, a discharge valve 35, a water meter 37, a pilot valve 39, an outer shell case 38 and an outlet 32 is provided in the toilet and installed in the toilet. It can be used as an article mounting table for users.

In FIG. 1, the flow of washing water in the assembly 40 is shown by a route of point A, → point B, → point C, → point D.
In the drawing, the flow of the washing water in the assembly 40 is shown by a route of a water meter 37 → the highest portion B1 of the impeller casing → a chamber C1 → a chamber D1 → the washing water outlet 32. Also, the second
The wash water flow paths in the figure are shown in the perspective view of FIG. 3 using the same reference numbers B1, C1 and D1.

FIG. 4 shows an embodiment in which the assembly 40 is used as an article mounting table. As shown in this figure, various discharge switches (for example, a urine discharge switch 41 and a stool discharge switch) are provided on the wash water discharge assembly 40a which is also used as the article mounting table.
42 and a discharge switch for failure 43) can be attached.

C. The invention's effect. The present invention provides a flush water discharge device that accurately discharges a desired amount of flush water without being affected by the type of toilet bowl. The flush water discharge device according to the present invention is highly versatile, compact, and compact. It can be mass-produced as a certain structure.

[Brief description of drawings]

FIG. 1 is a front view showing an example of the flush water discharge device according to the present invention, FIG. 2 is a side view showing the device of FIG. 1 with a vertical cross section, and FIG. 3 is the device of FIG. FIG. 4 is a perspective view showing a flow of wash water passing therethrough, FIG. 4 is a front view showing a case where the device according to the present invention is provided as a shelf for holding personal belongings, and FIG. 5 is a patent application of Japanese Patent Application No. 259344 in 1986. FIG. 6 is an overall view of the wash water discharge device given as an example, and FIG. 6 is a view showing a controller of a water meter of the wash water discharge device of FIG.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Koichi Sano, 4-9-19, Kamigaga, Setagaya-ku, Tokyo Kimura Giken Co., Ltd. Kimura Giken Co., Ltd.

Claims (3)

[Claims] 1. A water meter is provided on a conduit between a discharge valve connected to a water pipe for supplying wash water and a toilet bowl, and the flow rate of wash water measured by the water meter reaches a predetermined value. In the type in which a valve closing device that shifts the discharge valve that is in the open state to the closed state is provided, the discharge valve, the water flow meter that measures the amount of flowing water by the rotational speed of the impeller, and the above A pilot valve for operating a discharge valve and an outer shell thereof are provided integrally with each other, and an outlet for flushing water to a toilet in a water meter is provided at the highest portion of an impeller casing of the water meter. The flush water discharge device of the flush toilet. 2. A discharge valve connected to a water pipe for supplying wash water,
An assembly that includes a pilot valve for operating the wash water discharge valve and a water meter that measures the flow rate of wash water by the number of rotations of the impeller. The outer shell of the assembly is used as a mounting table for hand-held items. The flush water discharge device for flush toilet according to claim 1, wherein the flush water discharge device is disposed at the position. 3. A flush water discharge switch for stool and a flush water discharge switch for urine, a discharge valve connected to a water pipe for supplying flush water, a pilot valve for operating the flush water discharge valve, and flush water. The flush water discharge device for a flush toilet according to claim 2, wherein the flush water discharge device is provided on an assembly that incorporates a water flow meter that measures the flow amount by the rotation speed of the impeller.