JPH0321690B2 - - 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 amount of time the discharge valve is open. There is also a time-setting format for releasing water.

Problems to be Solved by the Invention Regarding these two types that have been used in the past, 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 discharge pipe, whereas volume-setting type toilets have the above restrictions, and in order to facilitate construction, the discharge pipe is If an attempt is made to place the waste on the floor, it becomes difficult to ensure the flow rate of the washing water required to transfer the waste to the discharge pipe. (In this regard, not only the location of the discharge pipe but also the type of toilet bowl are 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 pressure-resistant structure in which a float plate having permanent magnets attached on its circumference is housed in a pressure-resistant water tank made of a non-magnetic metal material with the permanent magnets close to the inner peripheral surface of the pressure-resistant water tank. The lower part of the space inside the aquarium is communicated with a wash water discharge valve, and the upper part of the space is communicated with a water supply pipe,
The pressure tank is equipped with an air vent that keeps the space inside the tank filled with cleaning water, and a detection device is installed to detect the lowering position of the float plate when the flush water discharge valve is opened and the float plate is lowered. Consisting of a permanent magnet provided on the circumference of the float plate and a permanent magnet arrival detection means provided on the circumference of the pressure-resistant water tank,
A flow path that allows the float plate to float is provided between the float plate itself or the float plate and the pressure-resistant water tank, and the lowering position of the float plate is selected to correspond to the amount of flushing water released at one time, and the discharge operation is performed. The present invention is characterized in that it is provided with a control device including means for closing a wash water discharge valve opened by the above-mentioned detection device in response to a signal from the detection device.

The float plate is preferably made of non-water-permeable foamed resin material.

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 washing water in the pressure tank is subject to the water pressure of the water supply because the pressure tank is constantly connected to the water supply pipe. The float plate begins to descend when the discharge valve is opened and wash water flows into the discharge pipe. The detection device detects that the float plate has descended by a predetermined amount (in other words, the wash water has been discharged by a predetermined amount), and the discharge valve is closed by a signal from the detection device. A flow path is provided between the float plate itself or between the float plate and the pressure-resistant water tank to allow the float plate to float.
When the discharge valve is closed, the float plate begins to float and stops when it reaches the highest allowed position. The float plate is different from conventional floats that follow the rise and fall of the water level of the wash water.This float plate is forcibly lowered regardless of the buoyancy that is exerted by the inflow of wash water from the water pipe. When the discharge valve is closed and the inflow of wash water stops (that is, when the forced lowering is no longer performed), it is raised to the position where it waits for the next discharge.

This system sets the discharge amount at one time by the amount of descent of the float plate, ensuring accuracy of the discharge amount, and the maximum flow rate of the required cleaning water is the same as with the conventional time setting type. Secured.

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 discharge pipe. The discharge pipe 5 is provided above the floor 7 in the space behind the rear wall 6 of the toilet room.

8 is a discharge device according to the present invention, and 9 is a wash water discharge valve (hereinafter simply referred to as a discharge valve).

FIG. 2 is a detailed view of the discharge device 8. As shown in this figure, the discharge device 8 has a valve 1 which is kept open at all times.
A pressure-resistant water tank 12 is provided, through which a water supply pipe 11 is connected to the upper part of the internal space. The pressure-resistant water tank 12 is made of a non-magnetic metal material. Inside the pressure-resistant water tank 12, a float plate 14 with permanent magnets 13 attached on the circumference moves the permanent magnets 13 into the pressure-resistant water tank 12.
(See Figure 3).
15 is a guide rod of the float plate 14, and 16 is a rectifying plate having a large number of holes. When the wash water is not being discharged, the float plate 14 is at the highest position where it abuts against the current plate 16, but when the discharge valve 9 is opened and the wash water is discharged, as the discharge progresses, the float plate 14 is at its highest position. descend.

The amount of descent of the float plate 14 is set to a predetermined constant value,
In order to thereby discharge the desired amount of washing water, the permanent magnet 1 on the float plate 14 is
A detector 17 serving as a means for detecting the arrival of the permanent magnet 13 which cooperates with the detector 3 and constitutes the detection device is connected to the pressure-resistant water tank 12.
installed around the circumference of the The detector 17 is one of the wash water
It is installed at a position corresponding to the discharge amount. The signal from the detector 17 is input to the control device 18 as a valve closing signal 19 for the discharge valve 9. In addition, 20 is the control device 18
This is the valve opening signal for the discharge valve 9 entering the water.

In order to avoid a situation where the float plate 14 cannot float to a predetermined position due to air remaining in the pressure tank, an air vent (air exhaust) is installed at the top of the pressure tank 12 to allow only air to flow through. A device) 21 is provided.

A detector 17a is provided to operate a lamp lighting circuit that indicates that the float plate 14 is floating to the highest position.

In addition, 22 is a bypass flow path used in the event that a failure occurs in the above-mentioned detection device, and a valve 23 on this flow path 22 is operated by an operating section 24 (see Fig. 1) provided in the toilet compartment 2. The valve is opened only at appropriate times.

Effects of the Invention The present invention provides a flushing water discharging device for a flush toilet that maintains the discharge amount per time at a predetermined value while easily providing the required flow rate to the flushing water. It is. That is, the present invention provides a wash water discharge device that has the advantages of the two conventional types mentioned above and avoids their disadvantages.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a flush toilet equipped with a flush water discharge device according to the present invention, FIG. 2 is a detailed diagram of the flush water discharge device shown in FIG. 1, and FIG. 3 is a diagram showing the float shown in FIG. It is an enlarged view of a board.

Claims (1)

[Claims] 1. Place a float plate with a permanent magnet attached on its circumference in a pressure-resistant water tank made of non-magnetic metal material with the permanent magnet close to the inner circumferential surface of the pressure-resistant water tank, and connect the lower part of the pressure-resistant water tank interior space to a wash water discharge valve. At the same time, the upper part of the space is connected to the water supply pipe, and an air vent is installed in the pressure tank to keep the space in the pressure tank filled with wash water, and when the wash water discharge valve is opened, the float floats. A detection device for detecting the lowering position of the float plate when the plate is lowered is composed of a permanent magnet provided on the circumference of the float plate and a permanent magnet arrival detection means provided on the circumference of the pressure-resistant water tank. The lowering position is selected to correspond to the amount of flushing water discharged at one time, and a flow path that allows the float plate to float is provided either on the float plate itself or between the float plate and the pressure tank, and is opened by the discharge operation. further comprising a control device including means for closing a discharge valve of washed water in response to a signal from the detection device,
Flush water discharge device for flush toilets.