JPH11324084A - Washing device of urine closet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform urine closet washing over a proper wide range at the time of a small flow rate and prevent water injection from a spreader from flowing out of the closet at the time of a large flow rate in the washing device of the urine closet performing urine closet washing by water injection from the spreader. SOLUTION: A spreader 16 is formed into a horizontal slender shape, and a feed water hole 30 for flowing water from a feed water pipe in a void part 28 is opened at the horizontal intermediate part of the void part 28. A slit-like water injection hole 34 is formed on the lower face 32 of the spreader 16, the shape of a water injection hole 34 is narrower at the horizontal intermediate part, and is wider at both the ends. In addition, both the horizontal end faces of the void part 28 is made to be an inclined face shape guide face 40 inclining downward oblique outward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a urinal cleaning apparatus, and more particularly to an urinal cleaning apparatus using water sprayed from a spreader.

[0002]

2. Description of the Related Art Conventionally, as a flushing method for urinals, flush water is caused to flow down from the upper part of the urinal along a bowl surface, and a part of the flush water is supplied to a rim water passage inside a vertical rim on a periphery of the urinal. A method to wash down the inner surface of the pot through a plurality of holes provided in the rim water passage to wash the pot surface and the lower hanging receiving part, and attach a spreader to the upper part of the urinal bowl surface, and from the water supply pipe It is known that water is sprayed from a spreader toward a pot surface to wash the water.

[0003] In the case of the latter cleaning method using a spreader, that is, in the case of a cleaning device for cleaning a urinal with water sprayed from the spreader, the urinal can be cleaned with a small amount of water, and the cleaning time is short. Since there is no need to provide a vertical rim on the side edge of the toilet, there is an advantage that the rim does not become an obstacle when cleaning the urinal, and the urinal has good cleaning properties.

[0004]

On the other hand, in the case of a urinal washing apparatus using this spreader, the amount of water from the spreader is small and the amount of water from the spreader is large when the amount of water from the spreader is small due to fluctuations in water supply pressure from the water supply pipe. There was a problem that the urinal washing range was different between when the flow rate was large.

Specifically, as shown in FIG. 6, when the amount of water from the spreader 200 is small and the flow rate is small, the urinal can be cleaned only in a narrow area S as shown in FIG. When the flow rate is large, the urinal can be washed over a wide area L as shown in FIG. 4A, but at the time of the large flow rate, the flush water from the spreader 200 is strong. There was an inconvenience that some of them flowed out of the bowl.

In FIG. 7, reference numeral 204 denotes a step formed at the lower portion of the urinal 202 so as to go around the inner surface of the hanging portion 206, and a part of the washing water from the spreader 200 is part of the step 204. On the step 204
Then, it flows down around the inner surface of the hanging portion 206 and flows downward, and also cleans the inner surface of the front portion of the hanging portion 206.

[0007]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and a urinal cleaning apparatus according to claim 1 has a spreader attached to an upper part of a bowl surface of a urinal, In a urinal cleaning device configured to spray water from a water supply pipe toward the bowl surface from the spreader to wash the spreader, the spreader is formed into an elongated shape in the left-right direction, and the spreader is formed inside the spreader in the left-right direction. After forming a long hollow portion, a water supply hole for allowing water from the water supply pipe to flow into the hollow portion is opened at an intermediate portion in the left-right direction of the hollow portion, and a slit elongated in the left-right direction is formed in a lower portion of the spreader. The water injection hole is formed so as to communicate with the hollow portion, and the water injection hole has a narrow width at an intermediate portion in the left-right direction and a wide shape at both ends.

[0008] The urinal cleaning apparatus of claim 2 is claim 1.
In the left and right ends of the cavity, a downward guide surface that regulates the flow of water from the water injection hole is formed,
The shape of the guide surface is an inclined surface that is inclined obliquely downward toward the outside on the side opposite to the center side of the urinal.

In a urinal flushing apparatus according to a third aspect of the present invention, in any one of the first and second aspects, the hollow portion extends in the left-right direction below the water supply hole to supply water from the water supply hole to the left and right. A rectifying rib for guiding in the direction is formed.

[0010] The urinal cleaning apparatus of claim 4 is claim 1.
In any one of (a) to (3), the lower surface of the spreader is formed such that inclined surfaces that incline in opposite directions intersect at a center portion in the left-right direction, and the intersection portion is formed into a downwardly sharpened corner shape. The slit-shaped water injection hole is formed in the lower surface of the spreader so as to pass therethrough in an elongated shape on the left and right.

[0011] The urinal cleaning apparatus according to claim 5 is the fourth embodiment.
Wherein the lower surface of the inclined surface shape including the corner portion is formed so as to be entirely inclined obliquely downward toward the pot surface side.

[0012]

As described above, the urinal cleaning apparatus according to the first aspect of the present invention is characterized in that the spreader has an elongated shape in the left-right direction, and a slit-shaped water injection hole elongated in the left and right directions is formed at a lower portion of the spreader. And the shape of the water hole is narrow at the middle part in the left and right direction and wide at both ends,
According to the cleaning device of the first aspect, when the washing water is sprayed from the slit-shaped spray hole, the flow resistance is increased in the narrow intermediate portion. The washing water can be sprayed uniformly over the entire area.

That is, if the slit-shaped water injection hole extends in a uniform width in the left-right direction, the cleaning water preferentially comes out from the left and right intermediate portions of the water injection hole, and the washing water flows out from the left and right ends. However, in the cleaning apparatus according to the first aspect, the slit-shaped water injection holes are formed to have a narrow width at the left and right middle portions and a wide width at the left and right end portions. A large amount of washing water can be sprayed from both ends of the water spray hole.

Therefore, it is possible to prevent the flushing range for the urinal from being narrowed based on the small flow rate when the flow rate of the flush water from the spreader is small, and it is possible to prevent an appropriate wide range even at such a small flow rate. , It is possible to clean the inner surface of the urinal.

According to a second aspect of the present invention, a guide surface having an inclined shape is formed at both left and right ends of the hollow portion inside the spreader so as to be inclined obliquely downward toward the outside opposite to the center side of the urinal. The guide surface regulates the flow of water from the water injection hole. That is, particularly at the time of a large flow rate, the unnecessarily excessive spread of the water from the spray hole of the spreader due to the force of the flow of the water is restricted inward by the action of the obliquely downward guide surface. In the case of the cleaning device according to the second aspect, a large cleaning range for the urinal can be secured at a large flow rate.
The washing water from the spreader can be prevented from flowing out of the pot due to the momentum.

In this case, the inclination angle of the guide surface can be appropriately selected. In particular, the inclination angle or direction of the guide surface is determined by changing the inclination of the guide surface at the bottom of the step portion of the urinal, specifically, the step position. It is desirable to select the upper end of the portion so that the guide surface faces.

According to a third aspect of the present invention, a rectifying rib is formed to extend in the left-right direction in the hollow portion and below the water supply hole, and to guide water from the water supply hole in the left-right direction. In the case of the washing device described above, the action of the rectifying ribs allows the washing water from the water supply hole to be preferentially guided to both ends of the slit-shaped water injection hole. Therefore, according to the device of the third aspect, it is possible to more effectively prevent the range of cleaning the urinal when the flow rate is small, and to perform urinal cleaning over an appropriate range.

According to a fourth aspect of the present invention, the lower surface of the spreader is formed so that the central portion thereof is pointed downward in a square shape, and the slit-shaped water injection holes are formed on the lower surface of the spreader so as to pass through the corner portion. In the case of the flushing device of the fourth aspect, when the urinal is not cleaned, water droplets are generated and grow in each part of the spray hole of the spreader, and the enlarged water droplets are removed from the spreader. The phenomenon of dripping from each part of the water spray hole, that is, the so-called rain dripping phenomenon can be prevented.

That is, in the case of the cleaning device according to the fourth aspect, since the lower surface of the spreader having the slit-shaped water injection holes is formed in a downwardly sharpened angular shape at the center, water droplets are formed at one point of the sharpened angular shape. This can prevent the phenomenon that water droplets are generated and grown in each part of the spreader, and each of them drops toward the hanging receiving part at the lower part of the urinal.

According to a fifth aspect of the present invention, the lower surface of the spreader including the corner portion is formed so as to be entirely inclined obliquely downward toward the bowl surface side of the urinal. In the case of the cleaning device, the water droplets guided to the downward sharp corners of the lower surface of the spreader can be gently and smoothly transferred to the pot surface by the action of the inclined surface.
Therefore, according to the cleaning device of the fifth aspect, it is possible to prevent the water droplets guided to the corners on the lower surface of the spreader from turning to the hanging receiving portion and dropping downward, so that the so-called rain dripping phenomenon from the corners can be prevented. Can also be prevented.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a urinal having a hanging receiving portion 12 at a lower portion, and a spreader 16
Is attached, and flushing from the spreader 16 performs flushing of the toilet.

Reference numeral 18 denotes a cover at the upper end of the urinal. A sensor 20 for detecting a human body is provided on the front surface of the cover, and an automatic cleaning device (not shown) is built in the cover 18. ing.

In the urinal 10 of this embodiment, the sensor 2
Based on the detection of the human body by 0, specifically, when the user leaves the urinal 10, the automatic cleaning device operates to guide the water from the water supply pipe to the spreader 16 to spray water therefrom. ing.

In this embodiment, a step 21 is provided below the urinal 10. As shown in FIG. 1 (C), the step portion 21 is provided so as to extend downward from the start end of the inner surface of the side wall portion of the urinal 10 and around the inner surface of the hanging receiving portion 12.
The height is formed at the forefront of the hanging receiving portion 12 to be the lowest.

In this embodiment, a part of the washing water sprayed from the spreader 16 flows on the step portion 21 so as to flow around the inner surface of the hanging portion 12 and reaches the frontmost portion of the hanging portion 12. After that, it flows to the bottom of urinal 10 and
The inner surface 2 is washed and then discharged from the drain port 22.

As shown in FIG. 2A, the spreader 16 comprises a main body 24 and a cylindrical water supply 26 on the rear side. Here, the water supply unit 26 is a part that supplies water from a water supply pipe (not shown) to the main body 24.

As shown in FIG. 2B, the main body 24 has a rectangular box shape elongated in the left-right direction as a whole, and a hollow portion 28 elongated in the left-right direction is formed therein. A water supply hole 30 in the water supply part 26 is opened at the center in the left-right direction of the hollow part 28.

On the lower surface 32 of the main body 24, a slit-shaped water spray hole 34 elongated in the left-right direction is formed in the spreader 16 so as to communicate with the cavity 28 as a whole. Here, the slit-shaped water injection hole 34 is shown in FIG.
As clearly shown in FIG. 5, the left and right ends are wide portions 36 having a wide width over a certain length, while the portions between them are narrow portions 38 having a small width.

On the other hand, the left and right end surfaces of the hollow portion 28
A downward guide surface 40 for regulating the flow of the washing water from the direction 4 is provided. These guide surfaces 40 are used for urinal 10
Are inclined downward and obliquely outward toward the opposite side of the center side.

In this embodiment, the inclination angle α of the guide surface 40 is set to a predetermined angle in the range of 15 to 30 °. Specifically, the inclination angle α of these guide surfaces 40 is set so as to be in the direction facing the base (start end) of the step portion 21.

The lower surface 32 of the main body 24 of the spreader 16 has two inclined surfaces 42,
44, which intersect at the left and right central portions. And the intersection is a sharp corner 46 pointing downward.
It has been. The slit-shaped spray hole 34 extends in the left-right direction over substantially the entire width of the main body 24 so as to pass through the corner 46.

The inclined surfaces 42, 44, ie, the lower surface 32 of the main body 24, are inclined surfaces which are inclined obliquely downward toward the pot surface 14 as a whole. Further, the inner surface of the slit-shaped water injection hole 34 is also an inclined surface which is inclined obliquely downward toward the pot surface 14 as shown in FIGS. 2 (C) and 2 (D).

In this embodiment, the spreader 16 is made of resin, and the main body 24 comprises a plate-shaped rear part 48 and a front part 50 as shown in FIG. The plate-shaped rear part 48 is fitted to the inner surface of the rear end of the front part 50 to form the main body part 24.

In the case of the washing apparatus of this embodiment, the water from the water supply pipe flows into the cavity 28 inside the main body 24 through the cylindrical water supply part 26. Specifically, after passing through the internal passage of the water supply unit 26, the water flows into the cavity 28 from a water supply hole 30 opened on the inner surface of the cavity 28. The washing water that has flowed into the hollow portion 28 is sprayed from the slit-shaped spray hole 34 on the lower surface 32 of the main body portion 24 onto the pot surface 14, and flows down along the pot surface 14 to perform urinal cleaning.

At this time, in this embodiment, both ends of the water spray hole 34 are wide portions 36, and a portion between them is a narrow portion 38.
Unlike the case where the water injection hole is formed with a uniform width on the left and right, the cleaning water does not flow out only from the central part of the water injection hole at the time of a small flow rate. Even at this time, a large amount of washing water flows out from both ends of the spray hole 34, and cleans the inner surface of the urinal 10 properly and over a wide range.

On the other hand, at the time of a large flow rate, the washing water from the spray hole 34 flows out in the direction regulated by the guide surfaces 40 at both ends of the cavity 28, that is, the direction is regulated so that the washing water does not spread too much to the left and right. The outflow prevents the washing water from flowing out of the pot even at such a large flow rate.

In a urinal cleaning apparatus using a spreader of this type, water attached to the inside or the periphery of the spreader when washing water is not flowing from the spreader causes water droplets to be sprayed on various parts along the spray holes of the spreader due to surface tension. Conventionally, there has been a problem that the droplets form and the water droplets grow and fall downward, that is, a so-called rain drooping phenomenon occurs. Are formed at the bottom, and even when water drops are formed, the corners 46 are guided by the inclined surfaces 42 and 44.
Only at, water droplets are formed.

Further, since the lower surface 32 is inclined obliquely downward toward the pot surface 14, the water droplets smoothly and quietly move to the pot surface 14 by the guiding action of the inclined surface.
Therefore, in the case of the cleaning device of the present example, there is no occurrence of a dripping phenomenon in which water drops from the spreader 16 drop downward at a position away from the pot surface 14.

FIGS. 4 and 5 show another embodiment of the present invention. In this embodiment, as shown in FIG. A rectifying rib 52 extending in the direction is formed. This rib 52
Has a function of guiding water from the water supply hole 30 in the left-right direction. By providing such a rib 52 inside the hollow portion 28, the washing water from the water supply hole 30 can be supplied to the left and right of the slit-shaped water injection hole 34. It can be preferentially guided to both ends. Therefore, according to the cleaning apparatus of this embodiment, it is possible to more effectively prevent the cleaning range for the urinal from being narrowed when the flow rate is small, and to perform urinal cleaning over an appropriate range.

In this embodiment, a metal decorative cover 54 is attached so as to cover the main body 24. Makeup cover 5
4 has a diagonally upward engaging projection 56, and covers the main body 24 of the spreader 16 with a screw 60 in a state where the engaging projection 56 is engaged with the diagonally upward engaging recess 58 of the main body 24. (See FIG. 5).
reference). The decorative cover 54 has a slit-shaped water injection hole 34.
Has an open shape.

Although the embodiment of the present invention has been described in detail, this is merely an example, and the present invention can be configured in variously modified forms without departing from the gist thereof.

[Brief description of the drawings]

FIG. 1 is a diagram showing a urinal cleaning apparatus according to an embodiment of the present invention together with a urinal.

FIG. 2 is a diagram showing the spreader in FIG. 1 in detail.

FIG. 3 is a perspective view of the spreader of FIGS. 1 and 2;

FIG. 4 is a view showing a spreader used in another embodiment of the present invention together with a peripheral portion.

FIG. 5 is a diagram showing the spreader of FIG. 4 with a decorative cover removed.

FIG. 6 is an explanatory view of a conventional problem of a urinal cleaning device using a spreader.

FIG. 7 is a perspective view of the urinal in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Urinal 14 Pot surface 16 Spreader 28 Cavity part 30 Water supply hole 32 Lower surface 34 Water injection hole 36 Wide part 38 Narrow part 40 Guide surface 42,44 Inclined surface 46 Corner part 52 Rib

Claims (5)

[Claims] 1. A urinal cleaning device, comprising: a spreader attached to an upper portion of a urinal surface of a urinal, wherein water from a water supply pipe is sprayed from the spreader toward the bowl surface to wash the urinal. And a water supply hole for allowing water from the water supply pipe to flow into the hollow portion is formed at an intermediate portion in the left-right direction of the hollow portion. In the lower part of the spreader, a slit-shaped water spray hole elongated in the left-right direction is formed so as to communicate with the cavity, and the shape of the water spray hole is narrowed at the middle part in the left-right direction so that both ends are narrowed. A urinal cleaning device characterized in that the part has a wide shape. 2. The urinal according to claim 1, wherein left and right end portions of the hollow portion are formed with downward guide surfaces for regulating the flow of water from the water injection holes, and the shape of the guide surfaces is set to the size of the urinal. A urinal cleaning apparatus characterized in that it has an inclined surface shape that is inclined obliquely downward toward the outside opposite to the center side. 3. The method according to claim 1, wherein the hollow portion extends in the left-right direction below the water supply hole,
A flushing device for a urinal, wherein a rectifying rib for guiding water from the water supply hole in the left-right direction is formed. 4. The spreader according to claim 1, wherein the lower surface of the spreader has a shape in which inclined surfaces inclined in opposite directions intersect at a central portion in the left-right direction, and the intersection has a downwardly sharp corner. A urinal cleaning device, characterized in that the slit-shaped water injection hole is formed in a left and right elongated shape on the lower surface of the spreader so as to pass through the corner. 5. The urinal according to claim 4, wherein the lower surface of the inclined surface including the corner portion is further inclined obliquely downward toward the pot surface side. Cleaning equipment.