JPS5839984B2 - Water injection branch pipe for tank-closed toilet bowl - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a system for effectively injecting water in the cleaning tank of a tank toilet bowl into a rim passageway provided on the inner periphery of the toilet bowl. This invention relates to a branch pipe for water injection installed in the ice chamber of the toilet water supply section located in .

The present invention will be described below based on drawings showing embodiments thereof.

That is, 1 in the figure is a branch pipe for water injection according to the present invention, which includes a primary pipe 2 with an open upper end 2a and two or more through holes 2c provided in the lower end of the secondary pipe or in the pipe wall near the lower end.
It consists of two or more secondary pipes 3 that communicate with and extend laterally.

- The upper end 2a of the next pipe 2 is an open end large enough to be engaged or loosely fitted into the bottom outlet 12a of the flushing tank 12 of the tank secret toilet. An uneven portion 2b is formed.

It is desirable that the size of the through hole 2c of the secondary pipe 2 is no larger than the opening of the upper end 2a, and that the cross-sectional area of the bottom of the secondary pipe 2 is less than or equal to the cross-sectional area of the upper end 2a.

At least one of the two or more secondary pipes 3 extending laterally in communication with the through hole 2c is provided with a flexible portion 3b that can be appropriately bent.

In the illustrated embodiment, both of the two secondary pipes 3, 3 are provided with a flexible portion 3b formed by forming a part of the pipe wall into a bellows-like structure, which is shown by a two-dot chain line in FIG. The solid lines represent the state in which the secondary pipes 3, 3 extending in opposite directions from the primary pipe 2 are respectively curved in the directions indicated by the open arrows.

The opening area of the tip 3a of the secondary pipe 3 is preferably smaller than the through hole 2c of the primary pipe 2 that communicates with the secondary pipe, and has a so-called tapered shape.

In addition, it may be desirable to make the opening area of at least one of the two or more secondary pipes smaller than that of the other secondary pipes, and depending on the shape of the toilet bowl, etc. In some cases, it may be better to close the tip 3a of the secondary pipe 3.

Of course, in this case, it is necessary to provide an appropriately sized opening 3c shaped like a window (hereinafter simply referred to as window opening 3c) at a suitable location on the wall of the secondary pipe 3.

Note that an appropriate number of window openings of this kind may be provided also in the secondary pipe whose tip 3a is open.

In the figure, reference numeral 4 denotes a fin-like protrusion for fixing the tip 3a of the secondary pipe 3 at a desired position f in the rim passageway 11 of the toilet. It is possible to match the thickness of the waterway.

The water injection branch pipe of the present invention having the above configuration is used in the following manner.

That is, before fixing the cleaning tank 12 of the tank secret type toilet, whose rear main portion is shown in cross section in FIG. Insert the pipe 1, and connect two or more of the water injection branch pipes 1 to two or more large drainage ports 8, 8 with a diameter of 50 mm that are bored in the partition wall 7 between the water chamber W and the rim water passage 11. Secondary pipe 3
, 3 are inserted.

This insertion operation is performed on at least one of the secondary pipes 3, 3.
Since the book is equipped with the flexible portion 3b as described above, the degree of opening between each of the secondary pipes 3, 3 can be freely adjusted, and this can be done extremely easily if the portion is appropriately curved in advance. be able to.

After fixing the secondary pipes 3, 3 so that their tip openings are located at optimal locations within the rim water passage 11 where a flushing effect is required, the cleaning tank 12 is placed on the tank pedestal 9.

At this time, the upper end 2a of the primary pipe of the water injection branch pipe 1 is covered from above with the bottom outlet 12a of the cleaning tank.

In the illustrated embodiment, a concave and convex portion 2b for engagement with the tank bottom outlet 12a is formed on the upper end 2a of the secondary pipe, and the concave portion and the lower flange 22 of the valve seat 20 having an inverted cross section are formed. An O-IJ song 9 for sealing is interposed between the inner surface of the toilet bowl and the rim flow channel, but depending on the structure of the toilet bowl and the rim flow channel, it may be better not to provide such a seal.

In such a case, simply bring the engagement unevenness 2b of the upper end 2a of the next vibrator 2 into contact with the inside of the tank bottom outlet 12a, or just loosely fit the upper end 2a inside the tank bottom outlet 12a. is sufficient.

When the water injection branch pipe 1 according to the present invention is installed and used in the water supply ice chamber W of a tank secret toilet as described above, when the valve member shown by the two-dot chain line is lifted to open the valve of the cleaning tank 12, The cleaning water conduit consisting of the small-volume primary pipe 2 and two or more secondary pipes 3, 3 is immediately filled with water, and water is sprayed from the tip 3a of the secondary pipe 3 with sufficient water head pressure.

Moreover, since the opening at the tip of the secondary pipe 3 is narrowed with only a gentle slope, the jetted water flow spreads out with an appropriate angular width, and the jetting width is never too narrow.

Therefore, in combination with the strong jetting force, this jetted water flow, although small, thoroughly cleans the periphery of the toilet bowl in front of the opening at the tip of the secondary pipe 3.

When using the water injection branch pipe of the embodiment shown in FIG. The water jets advance through the two left and right rim passageways 11.11 provided in the toilet bowl, merge and collide at the front end of the toilet bowl, and then flow down along the sloped surface of the inside of the toilet bowl. Depending on the shape of the toilet bowl, it may be preferable to provide a difference in jetting force or water volume between the left and right water jets. Let's make the ratio different.

In some cases, the water jet that swirls counterclockwise or clockwise around the rim passage around the toilet bowl can improve the cleaning effect, so in such cases, the tip of the secondary pipe on the left or right side 3a should be closed.

In any of the above cases, the toilet bowl portion in front of the secondary pipe tip 3a is cleaned thoroughly, whereas the toilet bowl portion behind the tip 3a may remain unwashed.

In such a case, as shown in Fig. 3, a short secondary pipe is added, and an opening is formed in the partition wall 7ζ between the rim passageway 11 corresponding to the rear toilet bowl and the water chamber W. It is desirable to insert an additional secondary pipe into the opening, or to provide an appropriate number of window openings 3c of appropriate size in the pipe wall midway between the left and right secondary pipes 3, 3 as shown in FIG.

Such changes in the embodiment can be made as appropriate depending on the shapes of the toilet bowl and the rim passageway, the size of the washing tank, and the like.

What is important is that the branch pipe for water injection of the present invention can be manufactured with relatively high dimensional accuracy using synthetic resin, etc., so that the actual jet water flow can be adjusted to have the jetting force and water volume distribution as set. .

This means that the highest cleaning effect can be obtained with the least amount of cleaning water, and it has been highly praised from the standpoint of resource and energy conservation.

Further, when using the water injection branch pipe of the present invention, there is also the effect that there is no fear of water overflowing to the outside of the toilet bowl.

That is, as shown in FIG. 2, even if there is a small gap between the bottom of the cleaning tank 12 and the tank pedestal 9, the cleaning water in the tank will not become full of water in the ice chamber W of the water supply section. .

- In an embodiment in which the upper end 2a of the next pipe 2 and the tank bottom outlet 12a are not sealed, - the upper end 2a of the next pipe 2 is not sealed.
Regardless of whether or not a is loosely fitted or engaged in the tank bottom outlet 12a, during the time when the valve member is lifted and the valve of the tank outlet 12a is open, the primary pipe 2 is closed. A large amount of water leaks to the outer circumference.

However, since relatively large discharge ports 8, 8 are bored in the partition wall 7, the leaked water flows into the rim passageway 11 through these discharge ports 8, 8, and flows down the rear end surface of the toilet bowl. Therefore, the water chamber W of the water supply section is never filled with water.

In addition, the upper end 2a of the -next pipe 2 and the tank bottom outlet 12
Of course, it is also possible to keep the rear end surface of the toilet bowl clean at all times by actively utilizing the water leakage generated from the fitting part with a.

For this purpose, it is appropriate to set the amount of washing water injected from the water injection branch pipe (in contrast, the amount of water leaked above) to about 5 to 15%.

If it is less than 5%, the rear end surface of the toilet bowl cannot be sufficiently cleaned;
If the amount exceeds ζ, more cleaning water will be used than necessary.

In summary, the water injection branch pipe of the present invention can achieve the maximum toilet bowl cleaning effect with a much smaller amount of flushing water compared to conventional methods, and can also be flushed out of the toilet bowl without using a complicated sealing method. Since it can completely prevent water from overflowing, it can be said that it has an extremely excellent advantage of significantly improving the water saving effect of the tank-type toilet.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention, and FIG. 1 is a front perspective view of the water injection branch pipe of the present invention, and FIG. 2 is a view showing the water injection branch pipe of the present invention installed in a tank-type toilet bowl. FIG. Moreover, FIG. 3 is a front perspective view showing a case where three secondary pipes are provided in the water injection branch pipe of the present invention, and FIG. 4 is a front perspective view showing a case where a side opening is provided in the wall of the secondary pipe. FIG. 1...Branch pipe for water injection, 2...-Next pipe, 2a...-Top end of next pipe, 2c...
...-Secondary pipe through hole, 3...Secondary pipe, 3
b...Flexible portion, 3C...Aspect opening,
12...Cleaning tank, 12a...Bottom outlet.

Claims (1)

[Scope of Claims] 1. The upper end is an open end large enough to be engaged or loosely fitted into the bottom outlet of the cleaning tank, and the lower end or the pipe wall near the lower end has two or more holes not larger than the upper end opening. It consists of a primary pipe provided with a through hole, and two or more secondary pipes that communicate with each through hole of the secondary pipe and extend laterally, and at least one of the secondary pipes has a moderate diameter. A water injection branch pipe for a tank-type toilet bowl, characterized by having a flexible part capable of bending. 2. The water injection branch for a tank secret toilet bowl according to claim 1, wherein at least one of the secondary pipes has a tip opening area smaller than that of the other secondary pipes. tube. 3. The tank secret type according to claim 1, characterized in that at least one of the secondary pipes has a closed end and has an appropriately sized opening in the pipe wall. Branch pipe for water injection of toilet bowl.