JPH03457B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a flush water discharge device that is particularly effective for flush toilets that are installed in large numbers.

Conventional technology: There are two types of flushing water discharge devices for flush toilets: one is a volume setting type that discharges a predetermined amount of flush water depending on the volume of the cistern, and the other is a volume setting type that discharges a predetermined amount of flush water depending on the volume of the cistern. There is also a time-setting type for releasing water.

Problems to be Solved by the Invention: Regarding these two conventionally employed types, the volume setting type is far superior to the time setting type in accuracy of discharge amount. This is for time setting formats.
This is because not only the discharge amount changes due to changes in the water pressure of the water supply, but also the condition of the discharge valve changes due to wear, rust formation, adhesion of dirt, etc. On the other hand, time-setting type toilets have almost no restrictions due to the type of toilet bowl and the installation position of the drain pipe, whereas volume-setting type toilets have the above restrictions, and in order to facilitate construction, the drain pipe If you try to place it on the floor, it will be difficult to ensure the flow rate of the washing water required to move the waste to the drain pipe. (In this regard, not only the location of the drain pipe but also the type of toilet bowl is relevant.) To summarize, of the two types conventionally used, the volume setting type is less accurate in the amount of discharge. Although it is superior to the time-setting type, it is subject to the above-mentioned restrictions, and the time-setting type has almost no of the above-mentioned restrictions, but it has the disadvantage that the accuracy of the discharge amount cannot be maintained for a long time.

Means for Solving the Problems: The present invention provides a piston plate having a permanent magnet attached on its periphery and having a specific gravity of more than 1, which is housed in a pressure-resistant water tank made of a non-magnetic material. In addition to providing a wash water discharge valve connected to the water tank, the bottom of the pressure-resistant water tank is always connected to the water supply pipe, and the rising position of the piston plate is determined when the wash water discharge valve is opened and the piston plate is raised. The detecting device is composed of a permanent magnet installed on the periphery of the piston plate and a permanent magnet arrival sensing means installed on the periphery of the pressure-resistant water tank, and the above-mentioned raised position of the piston plate is set by one discharge of washing water. A control device is provided at a position corresponding to the flow rate, and includes means for closing a wash water discharge valve opened by a discharge operation in response to a signal from the detection device, and a hole for allowing the piston plate in the raised position to settle. Alternatively, a gap is provided between the piston plate itself or between the piston plate and the pressure-resistant water tank.

The discharge valve may be of the electromagnetically or electrically operated type, as well as the conventional time setting type. Furthermore, the permanent magnet arrival sensing means can be provided at a plurality of locations. In that case, the control device selects whether the signals from these sensing means are valid or invalid.

Function: The wash water in the pressure tank maintains a pressure equal to the water pressure of the tap water because the pressure tank is constantly connected to the water supply pipe.

When the discharge valve is opened and the wash water in the pressure water tank is discharged toward the toilet bowl, the wash water flows into the pressure water tank from the water pipe. This inflow occurs with the lifting of the piston plate. When the piston plate rises by a predetermined amount (in other words, when a predetermined amount of wash water is discharged), the detection device is activated and the discharge valve is closed. A flow path is provided between the piston plate itself or between the piston plate and the pressure water tank to allow the piston plate to settle, so when the discharge valve is closed, the piston plate begins to settle, and the piston plate prevents the next discharge. Reach the waiting position.

In this type, the amount of flushing water discharged once is set by the amount of rise of the piston plate, so accuracy in the amount of discharged water is ensured. Furthermore, since this system utilizes the water pressure of the water pipe to discharge the wash water, the maximum flow rate of the wash water is ensured in the same way as in the case of the conventional time setting type.

Embodiment: FIG. 1 shows an example of a flush toilet equipped with a flush water discharge device according to the present invention.

In this figure, 1 is a toilet bowl, 2 is a toilet room, 3 is a toilet door, 4 is a door switch, and 5 is a drain pipe. The drain pipe 5 is provided in the space behind the toilet wall 6.

7 is a wash water discharge valve, and 8 is a pressure-resistant water tank provided according to the present invention. Since the details of the structure of the pressure water tank 8 are shown in FIG. 2, the present invention will be explained below with reference to FIG.

The pressure-resistant water tank 8 is communicated with a water pipe 10 as a water supply source via a manual valve 9 that is kept open at all times. 11 is a piston plate provided in the pressure-resistant water tank 8, and a permanent magnet 12 is attached on the circumference.

The piston plate 11 is connected to the water pipe 1 when the discharge valve 7 is opened.
When cleaning water flows into the pressure water tank 8 from 0, in other words, water pipe 10 → pressure water tank 8 → discharge valve 7 →
This is an element that is raised when a flow occurs in the path called toilet bowl 1. 13 is a detector installed on the circumference of the pressure-resistant water tank 8, which detects the arrival of the permanent magnet 12 and sends a signal 14 to close the discharge valve 7 (see Fig. 1).
is sent to the control device 15. That is, the permanent magnet 12
and the detector 13 constitute a detection device for detecting the raised position of the piston plate 11.

The piston plate 11, which was raised when the discharge valve 7 was opened, is moved up by the water pipe 1 when the discharge valve 7 is closed.
When the flow of washing water into the pressure water tank 8 is stopped, it is lowered by its own weight to a position where it waits for the next discharge. In order to allow the piston plate 11 to sink, a gap 16 is provided between the piston plate 11 and the pressure water tank 8.

17 is a guide rod for the piston plate 11, 18 is an air vent (air vent device with a built-in float) provided at the top of the pressure-resistant water tank 8, 19 and 20 are rectifying plates provided in the pressure-resistant water tank, and 21 is an air vent provided inside. This is a rubber material that prevents water hammer from occurring.

In order to indicate that the piston plate 11 is in the settling state (that the discharge valve 7 is in the discharge standby state), a detector 22 is provided in the pressure-resistant water tank 8, and the detector 22 outputs a signal 23 for lighting the indicator light. (see FIG. 1) enters the control device 15.

Another detector can be provided between the detectors 13 and 22 to generate a signal when the amount of flushing water discharged is kept to a small amount, and the signal from this detector is the valve opening signal of the discharge valve 7. It is assumed to be valid when it enters the control device 15 as a "small use" item.

The device according to the present invention described above closes the discharge valve by detecting by the amount of rise of the piston plate 11 that a predetermined amount of flushing water has been discharged. This is done using the water pressure in the pipes.

In addition, 24 is a bypass channel used when a failure occurs in the above-mentioned discharge device, and the operation part of the discharge valve 25 provided on this bypass channel 24 is shown with the reference numeral 26 in FIG. It will be done.

Effects of the invention: The present invention has the effect of configuring a washing water discharging device so as to avoid the disadvantages of the capacity setting type and time setting type used for washing water discharging while preserving their advantages. It brings about. In other words, the system according to the present invention is of the conventional capacity setting type (the discharge amount is accurate, but is subject to restrictions due to the type of toilet and the installation position of the drain pipe) and the conventional time setting type (the toilet is accurate). This system is designed to take advantage of the advantages of both types of drain pipes, but is not subject to restrictions imposed by the type of drain pipe or the installation location of the drain pipe, but has difficulties in maintaining the accuracy of the discharge amount.

[Brief explanation of the drawing]

FIG. 1 shows an example of a flush toilet equipped with a flush water discharge device according to the present invention, and FIG. 2 shows details of the flush water discharge device of FIG. 1.

Claims (1)

[Claims] 1 Permanent magnets are attached on the circumference and 1
A piston plate with a larger specific gravity is housed in a pressure-resistant water tank made of non-magnetic material, a wash water discharge valve is provided that connects to the top of the pressure-resistant water tank interior space, and the bottom of the pressure-resistant water tank interior space is constantly connected to the water supply pipe. A detection device for detecting the rising position of the piston plate when the wash water discharge valve is opened and the piston plate is lifted is installed on a permanent magnet mounted on the circumference of the piston plate and on the circumference of the pressure-resistant water tank. and a permanent magnet arrival sensing means, which selects the raised position of the piston plate at a position corresponding to one discharge amount of cleaning water, and detects the cleaning water discharge valve opened by the discharge operation from the detection device. water washing, characterized in that a control device including means for closing in response to a signal is provided, and a hole or gap is provided between the piston plate itself or between the piston plate and the pressure water tank to allow the piston plate in the raised position to sink. Toilet wash water discharge device.