JPH0139803Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a toilet bowl cleaning device, particularly a type of toilet that controls the supply of flush water to the toilet bowl by installing an automatic valve such as a solenoid valve in the middle of the pipe that supplies flush water to the flush toilet bowl. Regarding cleaning equipment.

Conventionally, in this type of toilet bowl cleaning device, the water in the pipe from the valve to the toilet bowl is replaced with air and flows down.

As a result, when discharging water, air and water mix in the pipeline from the valve to the toilet bowl, in the water supply chamber of the toilet bowl, and in the water conduit, causing noise and causing problems such as the initial water velocity and cleaning power being reduced. .

The present invention aims to solve the above problems and to save water and reduce noise when discharging water.

The basic structure of the present invention is to install automatic valves for large flow rate and small flow rate in parallel in the middle of the pipeline, and configure the large flow valve to open after the small flow rate valve opens. The air in the water supply chamber and water conduit of the toilet bowl is gently discharged with a small flow rate at the beginning, and then the flushing starts with a large flow rate.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

A in the figure is a toilet bowl, in this embodiment it is a blowout type urinal, and a water storage chamber 3 that communicates with a water supply chamber 1 via a passage 2 is formed below a trap 4, and the bottom of the trap 4 has a water storage chamber 3. A jet hole 5 communicating with the chamber 3 is opened toward a drain port 6.

The above-mentioned water supply chamber 1 is provided at the center of the upper part of the toilet bowl A, and is formed adjacent to the lower part of the water supply chamber 1 along the rim water passage 7 formed along the front edge of the toilet bowl A and the rear wall 8 of the toilet bowl. Through holes 10 and 11 are provided in the water sprinkling chamber 9, respectively.
We are in contact via.

The rim passageway 7 has a cleaning hole 13 opened toward the ball portion 12 at the periphery of the ball portion 12 on the lower surface, and the water sprinkling chamber 9 has a water spray hole opened obliquely toward the rear wall 8 of the toilet bowl. It has a hole 14 on the lower surface.

Further, the water supply chamber 1 has a water supply port 15 opened on the top surface, and a water supply pipe 16 connected to a water supply source, for example, a water supply, is connected to the water supply port 15 via a spud 17.

Therefore, a pipe line 18 is constructed between the water supply source and the water supply chamber 1 of the toilet bowl A to communicate the two.

The pipe line 18 includes a main pipe line 18a and a main pipe line 18a.
After branching from this midway, it joins the main pipe 18a again downstream from this branching point,
Bypass pipe line 1 whose pipe diameter is smaller than the main pipe line 18a
8b, a large flow valve 19 capable of allowing a large flow to flow is provided in the main pipe 18a between a branch point and a confluence point of the bypass pipe 18b, and only a small flow is allowed to flow in the bypass pipe 18b. A valve 20 for small flow rates that cannot be used is provided.

Both the large flow rate valve 19 and the small flow rate valve 20 are automatic valves, for example, solenoid valves, and are operated by a common operation switch 2.
1, the valve is opened for a certain period of time by operating a switch 21, and flush water is supplied to the toilet bowl A.

Further, the large flow rate valve 19 and the small flow rate valve 20 are controlled via a well-known timer or the like so that when the switch 21 is operated, the small flow rate valve 20 opens first, and then the large flow rate valve 19 opens a little later. Control.

Therefore, in the toilet bowl A, air is gently discharged from the water supply chamber 1 and the water conduit such as the rim passageway 7 and the passage 2 by the small flow of water that is initially supplied, and then by the large flow of water that is supplied. Full-scale cleaning will be performed, and the noise generated by the mixing of water and air at the initial stage of water discharging will be reduced.

On the other hand, the spud 17 is integrally provided with a skirt portion 24 that expands downward below a cylindrical portion 23 provided with a screw 22 on the outer periphery.
A net 25 is stretched in the inside 4 so as to block the section in the radial direction.

The net 25 is a general term for a wire knitted material or a plate material with countless small holes, and is made of strong and rust-proof metal such as stainless steel or plastic, and is provided with a support ring 26 around the periphery. It is attached to the skirt portion 24 by screwing, fitting, or the like.

The mesh 25 retains water by utilizing the surface tension of water, and the smaller the mesh is, the more effective it is, but the smaller the mesh, the greater the resistance to flowing water, so the mesh 25 may be used depending on the flow rate, the thickness of the piping, etc. It is recommended to use a mesh of approximately 9 meshes, but it is possible to use a mesh of up to 9 meshes.

Thus, the spud 17 tightens the upper wall 25 of the toilet bowl A using a skirt-like gasket 27 fitted onto the outer peripheral surface of the skirt portion 24 and a tightening nut 28 screwed onto the cylindrical portion 23 to close the water supply port 15. The distal end of the water supply pipe 16 is inserted into the cylindrical part 23.

An annular packing 3 is attached to the outer periphery of the end of the water supply pipe 16.
A slip washer 31 and a cap nut 32 are attached to the packing 30, and the cap nut 32 is screwed onto the cylindrical portion 23 of the spud 17.

It is also optional that the net 25 is attached directly to the end of the water supply pipe 16 instead of to the spud 17.

By installing the net 25 at or near the end of the water supply pipe 16 in this way, the water remaining between the two automatic valves 19 and 20 in the pipe line 18 and the toilet bowl A after flushing the toilet bowl is absorbed by its surface tension. The air is retained without passing through the mesh 25, and is not replaced with air.

The graphs shown in FIGS. 6 to 8 show a structure in which all of the washing water is supplied at once by one automatic valve.
Moreover, in the case of conventional toilet bowl cleaning devices that do not have a net at the end of the pipe (Figure 6), there are two types: one for large flow rate and one for small flow rate.
Two automatic valves are installed so that the large flow valve opens after the small flow valve opens, but if no net is installed at the end of the pipe (Figure 7), two automatic valves are installed, one for large flow and one for small flow.
Two automatic valves are installed so that the large flow valve opens after the small flow valve opens, and a blowout type small The graph shows that the noise of a conventional toilet bowl cleaning device is 82.5 db, but when two automatic valves are installed, one for large flow and one for small flow, the noise decreases to 79.5 db. It can be seen that when a net is further installed, it decreases to 73db.

By attaching the net 25 to the end of the water supply pipe 16 in this way, the action of the net 25 and the two automatic valves 1
The effects of 9 and 20 work together to further reduce the noise caused by the mixing of water and air at the initial stage of water discharge.

Furthermore, if a net is provided at the end of the pipe line 18 as described above, there is no drop in water spouting speed at the initial stage of water spouting, and all the water can contribute to cleaning from the start of water supply, so it is possible to save water. Since water can be kept in the pipe 18 leading to the toilet bowl A after 19 and 20, there is no need to deliberately install the two automatic valves 19 and 20 near the toilet bowl A, and they can be placed away from the toilet bowl A. As a result, the automatic valves 19 and 20 can be installed in locations where they are not exposed to sewage or inconspicuous locations.

In the above explanation, the net 25 is attached to the end of the pipe 18, but instead of attaching the net 25, a water reservoir 1' is provided in the water supply chamber 1 of the toilet bowl A, as shown in FIGS. 4 and 5. It is also possible to submerge the end of the pipe line 18 in this water reservoir 1'.

In this case, the watering chamber 9 is formed adjacent to the left and right sides of the water supply chamber 1, and the water supply chamber 1 has through holes 10, 10' in the rim water passage 7 and the passage 2 to the water storage chamber 3 at the front and back of the upper part of its peripheral wall. The left and right watering chambers 9 are connected to each other through through holes 11, respectively.

In the water supply chamber 1, a water storage section 1' is provided with a through hole 1.
It is formed in a bag-like manner hanging downward from 0,10'11.

On the other hand, the water supply pipe 16 passes through the spud 17, extends into the water supply chamber 1, reaches the water reservoir 1', and its end is submerged in the water stored in the water reservoir 1'.

Similarly to the case where a net 25 is provided at the end of the pipe line 18, this system also retains water remaining between the automatic valves 19 and 20 and the toilet bowl without draining out. It has almost the same effect.
Also, the noise measurement results are almost the same as the graph in FIG.

The present invention is not limited to blow-out urinals, and can be applied to other types of urinals as well.
It goes without saying that the same procedure can be applied to toilet bowls as well.

Furthermore, the water supply method from the water supply source may be a method in which water is supplied from a water tank using a pump, in addition to a method in which water is supplied directly from the water supply.

Since the present invention has the above configuration, it has the following advantages.

(1) The air in the water supply chamber of the toilet bowl and the water conduit is gently discharged by the small flow of water supplied by opening the small flow valve. Noise is reduced.

(2) In particular, blowout urinals with small water injection holes slanted toward the rear wall of the toilet eject water from the small holes at high speed, which makes a loud plosive sound when mixed with air, but this noise can be reduced.

(3) It is possible to locate automatic valves such as electric valves away from the toilet bowl, and it is possible to install automatic valves in locations that are not exposed to sewage or inconspicuous locations.

[Brief explanation of the drawing]

FIG. 1 is a front view, partially cut away, of a toilet bowl cleaning device showing an embodiment of the present invention, and FIG. 2 is a side view, partially cut away, showing the toilet bowl in longitudinal section. Fig. 3 is an enlarged cross-sectional view of the main part, Fig. 4 is a longitudinal side view showing another embodiment with some parts cut away, Fig. 5 is a longitudinal front view showing the main part enlarged, and Fig. 6 Figures 8 to 8 are graphs showing the noise measurement results. Figure 6 is for a conventional toilet bowl cleaning device, and Figure 7 is for a conventional toilet flushing device. If the large flow valve is opened after the valve is closed, Figure 8 shows the large flow valve.
A case is shown in which two valves for small flow rates are provided and a net is further provided at the end of the pipe. A...Flush toilet, 1...Water supply room, 1'...Water storage section, 18...Pipe line, 19...Large flow valve, 20...
...Valve for small flow rate, 25...Net.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A small flow valve consisting of an electric valve or other automatic valve is installed in the middle of the pipe that supplies water to the faucet toilet, and a large valve that opens after the small flow valve is opened. A toilet bowl cleaning device with flow valves installed in parallel. (2) The above-mentioned utility model characterized in that the pipe is formed to supply water downward to the toilet bowl, and is provided with a steel near the end or the end to block the pipe in the radial direction. A toilet bowl cleaning device according to claim 1. (3) The toilet bowl cleaning device according to claim 1 of the above-mentioned utility model registration claim, wherein the end of the pipe is submerged in a water reservoir in the water supply chamber of the toilet bowl.