JP2002088861A - Structure of flush nozzle for simplified flush stool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the structure of a flush nozzle for simplified flush stool having the stabilized flushing performance so that the flushing water evenly flows over a bowl surface of a stool main body. SOLUTION: The flushing water of a flushing water tank 11 flows in a water flow pipe 14, and the flushing water is discharged from a flush nozzle 16 inserted into an end part of the water flow pipe 14 to a bowl surface 122 of a stool main body 12. In this structure of the flush nozzle 16 for a simplified flush stool 10, the water flow pipe 14 and the flush nozzle 16 are inserted and engaged with each other for positional fixation in the pipe axial direction, and the flush nozzle 16 formed of a cylindrical body is provided with a flow straightening wall 163 at one end thereof, and formed with discharge holes 161 and 162 at a lower semicircular part of the periphery of the cylindrical body thereof adjacent to the flow straightening wall 163, and these discharge holes 161 and 162 are opened both sideward and downward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a washing nozzle of a simple flush toilet.

[0002]

2. Description of the Related Art Conventionally, the entire flow path of washing water from a water supply port of a toilet body of a simple flush toilet to a discharge nozzle has been integrally formed of pottery. In addition, the discharge port of the cleaning nozzle was also made of ceramic and formed in a round shape. Pottery has a large shrinkage rate and a large deformation.
The mounting position was not constant and the cleaning properties were not constant either.

There is no problem if the amount of washing water is 10 liters or more as in the case of a flushing toilet, but the simple flushing toilet is a pumping tub so that the amount of washing water per wash is 300 times.
Designed to be as small as 400 milliliters.

In a simple flush toilet, it is important to reduce the amount of water used as much as possible and to make a large amount of water a vibrant effective water amount because of a pumping toilet tank system.

On the other hand, considering the effectiveness of the washing water, the washing water discharged from the washing nozzle cleans the bowl surface while partially flowing down a water shelf on the upper and outer circumferences of the bowl surface of the toilet body, and the rest is left and right. The bowl collides with the center of a running water shelf to wash the bowl surface.

That is, it is important to distribute the washing water over the entire bowl surface. The distribution of the cleaning water is affected by the shape of the cleaning nozzle, particularly the shape of the cleaning nozzle discharge hole, the position of the cleaning nozzle discharge hole in the water shelves, and the like.

[0007] When the washing nozzle is attached to the water pipe, if there is a variation in the attachment angle of the washing nozzle, the washing water on the left and right flowing through the running water shelves on the bowl surface of the toilet body varies, so that only one side can be washed. .

The amount of the washing water varies due to the distribution of the sectional area of the opening to the front side and the side of the discharge hole. A toilet cleaning device is described in Japanese Patent No. 2804744.

In the above publication, a water supply tank is disposed above a rear portion of a toilet, a water supply pipe for supplying water from the water supply tank to the interior of the toilet bowl is inserted into the toilet, and a nozzle having an injection hole is connected to the water supply pipe. It is provided detachably connected to the toilet bowl side, and the positioning part for positioning the nozzle with respect to the water supply pipe is provided on the water supply pipe and the nozzle so that the injection hole of the nozzle faces downward. Regardless,
Water can be supplied stably, and even when used for simple flushing, it is ensured that the bowl surface of the toilet bowl is sufficiently and sufficiently spread over the bowl surface.

[0010]

As described above, when the cleaning nozzle is made of ceramic, the shrinkage of the ceramic is large and the shape of the cleaning nozzle is not constant, so that the mounting angle of the cleaning nozzle is not constant and the cleaning performance is constant. There was a problem that was not. In addition, the cleaning nozzle disclosed in the above publication has a problem that the discharge hole from the cleaning nozzle is discharged in one direction, and the cleaning water does not flow down the entire bowl surface in the toilet body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to wash a simple flush toilet having a stable flushing performance in which flush water flows down uniformly on a bowl surface of a toilet bowl. It provides a nozzle structure.

[0012]

According to the first aspect of the present invention, the structure of the flush nozzle of the flush toilet according to the present invention is such that the flush water in the flush water tank passes through the water pipe and is inserted into the end of the water pipe. The washing nozzle of the simplified flush toilet that is discharged from the washing nozzle to the bowl surface of the toilet body, wherein the water pipe and the washing nozzle are fixed in position in the pipe axis direction by uneven fitting, and from the cylindrical body. The cleaning nozzle is provided with a rectifying wall at one end, a discharge hole formed in a lower half peripheral portion of the outer periphery of the cylindrical body adjacent to the rectifying wall, and the discharge hole is provided to be opened on both sides and downward. It is.

According to a second aspect of the present invention, the structure of the flush nozzle of the flush toilet according to the present invention is such that the discharge holes on both sides of the discharge hole are larger than the lower discharge hole.

[0014]

According to the first aspect of the present invention, the structure of the washing nozzle of the simplified flush toilet according to the present invention is such that the water pipe and the washing nozzle are fixed in position in the pipe axis direction by uneven fitting, and the washing nozzle comprising the cylindrical body is A rectifying wall is provided at one end, and a discharge hole is formed in a lower half peripheral portion of the outer periphery of the cylindrical body adjacent to the rectifying wall, and the discharge hole is provided so as to open to both sides and downward, so that the cleaning nozzle is The position is fixed by the fitting of the concave and convex, and the discharge hole is fixed without being shifted. Further, the washing water discharged from the left and right sides and the lower three-way discharge holes flows down the bowl surface of the toilet body from the three directions, so that the bowl surface can be washed evenly.

According to a second aspect of the present invention, since the discharge holes on both sides of the discharge hole are larger than the lower discharge holes, the discharge holes on both sides are farther away. The washing water can be distributed more on the bowl surface of the toilet body, and the bowl surface of the toilet body can be washed uniformly.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing the structure of the flush pipe of the simple flush toilet of the present invention, FIG. 2 is a sectional view showing the detail of the flush pipe structure of the flush toilet of the present invention, and FIG. 3 is the flush flush of the present invention. FIG. 4 is a cross-sectional view in the direction perpendicular to the pipe axis showing the cleaning nozzle of the simplified flush toilet of the present invention, and FIG. 5 is another embodiment of the straightening wall of the cleaning nozzle. FIG. 6 is a cross-sectional view illustrating another example of the flow regulating wall of the cleaning nozzle.

As shown in FIGS. 1 and 2, the structure of the washing nozzle 16 of the simple flush toilet 10 of the present invention is such that the washing water is supplied from the washing water tank 11 through the water pipe 14, and the end of the water pipe 14. The cleaning nozzle 16 inserted in the section discharges the water to the bowl surface 122 of the toilet body 12.

The simplified flush toilet 10 has a toilet body 12
A washing water tank 11 for storing washing water is provided at an upper end of the tank. The washing water in the washing water tank 11 is connected to the water pipe 14 of the toilet body 12 by a siphon pipe 15 at the lower part.

The washing water in the washing water tank 11 is vigorously introduced into the water pipe 14 by lifting the rubber waterproof body 13 and opening the siphon pipe 15.

The lower end of the siphon pipe 15 protrudes outside the lower wall surface 111 of the washing water tank 11, penetrates the projection 161 of the upper end 16, and is inserted into the water pipe 14.

The toilet body 12 has a water pipe insertion part 1 at its upper part.
27 are provided. The water pipe insertion part 127 has a water pipe locking hole 121 at the upper part and a through hole 125 at the lower part.

On the inner surface of the toilet body 12, a curved bowl surface 122 is formed. On the upper stage of the bowl surface 122, a running water shelf 123 through which washing water flows is provided.

The lower part of the water shelves 123 is formed with a curved bowl surface 122 through which the washing water easily flows.

The water pipe 14 is formed of a rubber molded product, and has a convex portion in the axial direction (flowing water direction) of the inner circumference which is fitted into the cleaning nozzle 16 in an uneven manner.

The washing water is supplied to the washing nozzle 1 at the end of the water pipe 14.
6 and discharge holes 161 and 16 at the end of the cleaning nozzle 16.
The bowl surface 122 is washed while jetting from the nozzles 1 and 162 and flowing through the bowl surfaces 122 immediately below and on both sides of the washing nozzle.

The water pipe 14 and the washing nozzle 16 are fitted in an uneven manner in the pipe axis direction so that the position in the outer peripheral direction is fixed.

As shown in FIG. 3 and FIG.
Is formed of a resin molded product, is provided with a concave groove 164 on the outer periphery that is fitted into and recessed with the water pipe 14, and the washing nozzle 16 is inserted into the water pipe 14 and attached to the water pipe 14 to rotate the water pipe 14 with respect to the pipe axis. Variations in direction are eliminated.

The cleaning nozzle 16 has a straightening wall 16 at its cylindrical end.
3 is provided, and the flow direction of the washing water is changed by the flow regulating wall 163. The cleaning water is supplied to the cleaning nozzle 16 through the water pipe 14 under the head pressure of the cleaning water tank 11 to flow vigorously into the cleaning nozzle 16.

The washing nozzle 16 composed of the cylindrical body is closed at one end by a rectifying wall 163, and is provided with discharge holes 161 and 161 in the lower half of the outer periphery of the cylindrical body adjacent to the rectifying wall 163.
62 are formed, and the discharge holes 161, 161 and 162 are provided so as to open on both side surfaces and downward.

The discharge hole 161 is opened symmetrically in the lower half of the lower part of the tube axis, and the discharge hole 162 is provided vertically downward.

The discharge holes 161 have a larger opening sectional area than the discharge holes 162. Therefore, more washing water is collected in the discharge holes 161 and 161 and is discharged to a distant place.

The washing water that goes straight is supplied to the bowl surface 12 of the toilet bowl.
The entire surface of the bowl surface 122 is washed while being uniformly distributed from directly below the washing nozzle 16 to the front bowl surface 122 along the running water shelf 2 above.

Therefore, a rectifying wall 163 larger than the diameter of the cleaning nozzle 16 is provided at the tip of the cleaning nozzle 16.
The washing water that has collided with 3 flows down left and right.

The opening of the discharge hole 162 immediately below the cleaning nozzle is narrowed in order to prevent a large amount of discharge, and the discharge holes 161 and 161 on both sides are greatly opened.
The amount of cleaning water discharged to the nozzle is increased.

As a result, the washing water flowing on the water shelves 123 is transported forward along the outer peripheral wall 124 of the water shelves 123 and hits the wall 124 in the middle thereof.
The bowl surface 122 is washed while flowing down from the bottom to the bowl surface 122.

The washing water that has flowed through the running water shelf 123 to the end is
The collision merges at the center of the front surface, and the bowl surface 122 is washed.
Note that the washing water may be horizontally discharged onto the flowing water shelf 123, and the discharge holes 161, 161 and 162 are provided in the cleaning nozzle 1
6 is opened below the axis.

The discharge hole 161 of the cleaning nozzle has a large opening size on both sides, and the gap between the lower discharge hole 162 and the lower discharge hole 162 is narrow, so that it is stepped. The draft angle of the cross section of this step is designed so that the mold can be opened directly below the mold structure.

A through hole 125 slightly larger than the outer diameter of the washing nozzle 16 is provided in a wall 124 on the outer periphery of the running water shelf 123 so that the washing nozzle 16 attached to the water pipe 14 penetrates.

If the diameter of the washing nozzle 16 is small,
Since it becomes difficult to distribute the cleaning water to both sides of the cleaning nozzle 3, the flow regulating wall 163 has a diameter sufficiently larger than the outer diameter of the cleaning nozzle 16.

The washing water hitting the front rectifying wall is dispersed over the entire circumference of the bowl surface 122 and the discharge holes 161, 161, 162
It is discharged from.

The outer peripheral wall 124 of the bowl surface 122 for opening the through hole 125 of the cleaning nozzle 16 has a size of only about 50 mm. Therefore, the through hole 125 of the wall surface 124 is also 40
A hole diameter of about 35 mm or less can be obtained.

Also in this embodiment, the inner diameter of the cleaning nozzle 16 is 25 mm, the outer diameter is 30 mm, the rectifying wall diameter is 33 mm, and the length is 60 mm.

The material of the cleaning nozzle 16 is made of resin and AB
Materials such as S, PE, PP, polyacetal, and PVC are used.

In the ceiling of the washing nozzle 16, a concave groove having a dimension of 5 mm in cross-sectional width and a depth of 3 mm is formed in the entire length in the axial direction excluding the rectifying wall. Are formed to eliminate the variation in the mounting around the shaft.

The discharge holes 161 and 1 on the side of the cleaning nozzle 16
Reference numeral 61 denotes a discharge hole width dimension of 7 mm and a height of 9 mm, and a discharge hole width dimension of the discharge hole 162 immediately below is 2.5 mm, and the height is up to the lower end of the cleaning nozzle excluding the height of the discharge hole 161. The dimensions are as follows.

The water pipe descends vertically and immediately bends to 2-5
It is designed to flow on a downward slope of about degrees. The cleaning nozzle 16 is inserted so that the end of the water pipe 14 is brought into contact with the outer peripheral wall 124 and the discharge hole position of the cleaning nozzle is arranged at a predetermined position on the water shelf 123.

In this embodiment, since the washing nozzle 16 penetrates through the through-hole 125 in the wall 124 on the outer periphery of the flowing water shelf 123 on the bowl surface 122, the splash of the washing water discharged from the washing nozzle 16 is applied to the water pipe 14. A very soft sponge body is attached to the end of the water pipe to prevent intrusion into the side.

On the outer periphery of the running water shelf 123 of the toilet body 12,
A wall 124 is formed, and the cleaning nozzle 16 is
A through hole 125 slightly larger than the outer diameter of the washing nozzle 16 is opened so that the washing nozzle 16 can penetrate the washing nozzle 16.
The positions of the six discharge holes 161 are arranged at predetermined positions on the water shelves 123.

The water pipe 14 is made of a rubber elastic material, and ethylene propylene rubber, chloroprene, natural rubber, SBR, NB
The hardness of a rubber molded body such as R is preferably around 40 to 60 degrees.

Since the washing nozzle 16 penetrates through the through-hole 125 in the wall 124 of the water shelf above the bowl surface 122, it is necessary to prevent the splash of the washing water discharged from the washing nozzle 16 from entering the water pipe 14 side. To prevent this, a very soft sponge body is attached to the end contact surface of the water pipe end to stop the water.

FIG. 5 shows another embodiment of the cleaning nozzle 16. As shown in FIG. 5, a gentle concave surface is provided by filling the space at the junction between the upper end of the cleaning nozzle 16 and the rectifying wall 165.

FIG. 6 shows another embodiment of the cleaning nozzle. As shown in FIG. 6, as in still another embodiment, providing a mountain-shaped protrusion having a central portion protruding toward the inflow side from the wall surface of the flow regulating wall 166 improves the flow of the discharge water 161 and 162. It is effective for.

According to the first aspect of the present invention, there is provided a washing nozzle for a simple flush toilet according to the present invention, wherein the water pipe and the washing nozzle are fixed in position in the pipe axis direction by uneven fitting, and the washing nozzle comprises the cylindrical body. Since one end is closed by a rectifying wall, a discharge hole is formed in a lower half peripheral portion of the outer periphery of the cylindrical body adjacent to the rectifying wall, and the discharge hole is provided to be continuously opened on both side surfaces and a lower portion. The position of the nozzle is fixed by the concave and convex fitting, so that the ejection hole does not shift. Further, the washing water discharged from the left and right sides and the lower three-way discharge holes flows down the bowl surface of the toilet body from the three directions, so that the bowl surface can be washed evenly.

According to the second aspect of the present invention, the structure of the flush nozzle of the flush toilet according to the present invention is such that the discharge holes on both sides of the discharge hole are larger than the lower discharge holes, so that the discharge holes on both sides are farther away. The bowl surface of the toilet bowl can be washed, and the bowl surface of the toilet bowl can be washed uniformly.

[0054]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a water pipe structure of a simple flush toilet of the present invention.

FIG. 2 is a sectional view showing details of a water pipe structure of the simple flush toilet of the present invention.

FIG. 3 is a sectional view in the pipe axis direction showing a washing nozzle of the simple flush toilet of the present invention.

FIG. 4 is a cross-sectional view in a direction orthogonal to a pipe axis showing a washing nozzle of the simple flush toilet of the present invention.

FIG. 5 is a sectional view showing another embodiment of the straightening wall of the washing nozzle of the simple flush toilet of the present invention.

FIG. 6 is a sectional view showing still another embodiment of the straightening wall of the washing nozzle of the simple flush toilet of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Simple flush toilet 11 Wash water tank 111 Lower wall surface 12 Toilet bowl main body 121 Water pipe locking hole 122 Bowl face 123 Flowing water shelf 124 Wall surface 125 Through hole 127 Water water pipe insertion part 13 Rubber waterproof body 14 Water pipe 141 Lower end part 15 Siphon pipe 16 Cleaning nozzle 161 Discharge hole 162 Discharge hole 163 Rectifying wall 164 Groove 17 Cleaning nozzle 18 Cleaning nozzle

Claims (2)

[Claims] 1. A structure of a washing nozzle of a simple flush toilet, wherein washing water in a flush water tank passes through a water pipe and is discharged from a cleaning nozzle inserted into an end of the water pipe to a bowl surface of a toilet body. Wherein the water pipe and the cleaning nozzle are fixed in position in the pipe axis direction by concave and convex fitting, and the cleaning nozzle formed of the cylindrical body is provided with a rectifying wall at one end, and an outer periphery of the cylindrical body adjacent to the rectifying wall. A discharge nozzle is formed in a lower half of a peripheral portion of the toilet, and the discharge hole is provided so as to open to both sides and a lower part thereof. 2. The structure of the flush nozzle for a simple flush toilet according to claim 1, wherein the discharge holes on both sides are larger than the lower discharge holes.