JPS6346532Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toilet bowl cleaning device, and particularly to a toilet bowl cleaning device of the type that controls the supply of flush water to the toilet bowl by providing a valve in the middle of a pipe that supplies flush water to the flush toilet bowl.

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, the water is wasted and does not contribute to cleaning.

Moreover, when discharging water, the air and water in the water supply pipe mix, producing noise and lowering the initial water discharging speed, resulting in a reduction in cleaning power.

Therefore, in order to save water and reduce noise, the valve must be located as close to the toilet bowl as possible, which causes problems such as sewage splashing and spoiling the appearance.

The purpose of the present invention is to solve the above problems, save water, reduce noise at the initial stage of water discharge, and make it possible to move the valve to any desired position.

The basic structure of the present invention is that a pipe for supplying flush water is formed so as to supply water downward to the toilet bowl, a spud is provided at the end of the pipe to connect the pipe and the toilet bowl, and a screen is attached to the spud. By installing this, the surface tension of the water is used to retain the water in the pipe from the valve to the toilet bowl without replacing it with air.

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 communicating with a water supply chamber 1 via a passage 2 is formed below a trap 4. A jet hole 5 communicating with the water storage 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 along the front edge of the toilet bowl A, and is connected to a rim passageway 9 having a water injection hole 8 on the lower surface at the periphery of the ball part 7 and a rear wall 10 of the toilet bowl. A water sprinkling chamber 12 having water sprinkling holes 11 on the lower surface formed below the water supply chamber 1 along
Both are in communication via through holes 13 and 14.

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. This conduit 1
No. 8 is opened only at its end, and there is no opening or through hole that communicates with the outside in the middle of the end.

The water supply pipe 16 is equipped with a water stop valve 19 that is manually opened and closed in the middle thereof, and an automatic valve 21 such as an electric valve that is electrically activated by operating a switch 20 and opened for a certain period of time as a water supply valve. Switch 2
Cleaning water is supplied to the toilet bowl A by opening the automatic valve 21 in response to the operation.

The above-mentioned spud 17 is integrally equipped with a skirt portion 24 that expands downward below a cylindrical portion 23 having a screw 22 on the outer periphery, and a skirt portion 24 is provided inside the skirt portion 24 to block the portion in the radial direction. A net 25 is stretched. Like the conduit 18, this spud 17 is not provided with any opening or through hole midway in the axial direction to allow communication between the inside and the outside.

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 amount of water flowing, the thickness of the piping, etc. Although it is recommended to use a mesh of an appropriate size, it is possible to use a mesh of up to about 9 meshes.

The spud 17 tightens the upper wall 29 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 33 are attached to the packing 30, and the cap nut 32 is screwed onto the cylindrical portion 23 of the spud 17.

Therefore, the water remaining between the automatic valve 21 of the pipe line 18 and the toilet after flushing the toilet is retained without passing through the mesh 25 due to its surface tension, and is not replaced with air.

Figure 3 shows the results of measuring the initial noise of the water discharge of the toilet bowl cleaning device of the present invention and the conventional toilet bowl cleaning device without a screen in a blowout type urinal.
This is as shown in the graph shown in FIG. 4, and it can be seen from this graph that while the noise of the conventional toilet bowl cleaning device is 82 dB, the noise of the toilet bowl cleaning device of the present invention is reduced to 77 dB.

Moreover, the toilet bowl A is not limited to a blow-out type urinal, and it goes without saying that it may be a toilet bowl of other shapes as well as a toilet bowl.

Furthermore, in addition to the method of supplying water directly from the water supply source, there is also a method of supplying water from a water tank with a pump, so that when the switch is turned on, the pump operates and at the same time a valve in the water supply pipe opens to start cleaning. It is also possible to do this.

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

(1) Since the water in the pipe from the valve to the toilet bowl does not escape and be replaced with air, there is no drop in water spouting speed at the beginning of water spouting, and all water can contribute to flushing from the start of water supply. You can save water.

(2) The noise generated by the mixing of water and air at the initial stage of discharge is reduced.

(3) The valve can be located away from the toilet bowl and can be installed in a location where it will not be exposed to sewage or in an inconspicuous location.

(4) Since the net is installed directly on the spud without intervening any special parts for attaching the net, the diameter of a part of the pipe does not become large due to the installation of the net, and the appearance is compact. There's nothing to lose.

[Brief explanation of the drawing]

Fig. 1 is a side view of a toilet bowl cleaning device showing one embodiment of the present invention, showing the toilet bowl in a longitudinal section, Fig. 2 is an enlarged cross-sectional view of the main parts, and Fig. 3 is a side view of the toilet bowl cleaning device of the present invention when discharging water. Graph showing measurement results of noise. FIG. 4 is a graph showing measurement results of noise during water spouting in a conventional toilet bowl cleaning device. A...Toilet bowl, 17...Spud, 18...Pipe line, 21...Valve, 25...Net.

Claims (1)

[Scope of utility model registration request] In a toilet cleaning device that controls the supply of flush water to the toilet by installing an electric valve or other automatic valve in the middle of a pipe that supplies flush water to the toilet, the water is supplied downward through the pipe to the toilet. A spud having openings only at both ends in the axial direction is connected to the end of the conduit, and the conduit and the toilet bowl are connected via the spud. , a toilet bowl cleaning device in which a net is directly installed to block this in the radial direction.