JP2020093239A - Injection nozzle and injection system - Google Patents

Abstract

To provide an injection nozzle that suppresses nonuniformity of fluid spray even when it is positioned off a center of a space.SOLUTION: An injection nozzle for injecting fluid toward a surface of a partitioning object facing a space is provided, the partitioning object being positioned inside the space and partitioning the space. The injection nozzle has a rotatable nozzle body having a plurality of injection holes for injecting the fluid. The cross-sectional areas SH1-SH4 of the plurality of injection holes 31A are set in accordance with an area of a range where respective arrival points of the fluid injected from the injection holes 31A on the surface of the partitioning object facing the space are partitioned by a fluid arrival line drawn on the surface of the partitioning object facing the space by rotation of the nozzle body.SELECTED DRAWING: Figure 8

Description

The present invention relates to an injection nozzle and an injection system.

Continuing to use the bathroom causes dirt to adhere to the inner surface of the bathroom, such as the bathtub, floor, inner wall, ceiling, bathtub, window, and door. Bathrooms are cleaned and wiped by people, but bathroom cleaning systems are being developed in order to further improve efficiency and hygiene. For example, Patent Document 1 describes an automatic bathroom cleaning system. This bathroom automatic cleaning system includes a vertically movable nozzle shaft provided from the ceiling of the bathroom to the floor, and a water pressure rotating sprinkler type nozzle attached to the tip of the nozzle shaft. During cleaning, hot water is sprayed from the sprinkler nozzle at the tip to the entire inner surface of the bathroom while moving the nozzle shaft up and down.

JP-A-8-209957

In the bathroom automatic cleaning system described in Patent Document 1, since the nozzle shaft moves up and down, water can be sprayed over the entire area in the vertical direction in the bathroom. However, since the nozzle shaft is moved up and down, the structure and control system are complicated, and the product cost is likely to increase.

In addition, the nozzle is arranged in the bathroom, that is, in the center of the space to sprinkle water. Therefore, a plurality of injection holes are evenly arranged on the nozzle surface. In addition, the size of each injection hole is made uniform. The presence of such a nozzle in the center of the bathroom is an obstacle. Therefore, when a person enters the room, it is necessary to move the nozzle to the ceiling side or remove the nozzle so that the nozzle does not get in the way, which is inconvenient.

In order to eliminate such inconvenience, it is conceivable to dispose the nozzle at a position deviated from the center of the space, for example, dispose the nozzle close to the ceiling. However, when the nozzle is arranged close to the ceiling, the amount of water sprinkled increases in the vicinity of the nozzle, but the amount of water sprinkled decreases with distance from the nozzle, resulting in uneven water sprinkling.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an injection nozzle that is less likely to cause unevenness in fluid dispersion even if it is arranged at a position deviated from the center of a space, and such an injection nozzle. To provide an injection system.

A jet nozzle according to a first aspect of the present invention is a jet nozzle that is located inside a space and jets a fluid toward a surface of a partition body that partitions the space, the surface facing the space. A rotatable nozzle body having at least part of the plurality of injection holes, and a cross-sectional area of at least a part of the plurality of injection holes is a surface of the partition body of the fluid injected from the plurality of injection holes in the space. Each reaching point on the surface is set according to an area of a range partitioned by a fluid reaching line drawn on the surface facing the space of the partition by the rotation of the nozzle body.

The injection nozzle according to a second aspect of the present invention is characterized in that, in the first aspect, an interval between centers of at least some of the plurality of injection holes is equal on the surface of the nozzle body.

A jet nozzle according to a third aspect of the present invention is a jet nozzle that is located inside a space and jets a fluid toward a surface of a partition body that partitions the space, the surface facing the space. A rotatable nozzle body having at least a part of the plurality of jet holes, at least a part of the plurality of jet holes, the space of the partition body of the fluid jetted from the plurality of jet holes to the nozzle body. It is characterized in that the intervals between the respective reaching points on the surface facing the are set so as to be uniform.

In the jet nozzle according to a fourth aspect of the present invention, in the first aspect, at least a part of the plurality of jet holes has the space of the partition body of the fluid jetted from the plurality of jet holes into the nozzle body. It is characterized in that the distance between the respective reaching points on the surface facing the is set to be equal, and the points are provided along a line extending from the respective reaching points to the nozzle body.

A jet nozzle according to a fifth invention is the jet nozzle according to any one of the first to fourth inventions, wherein the partition body has a jet nozzle mounting surface to which the nozzle body is mounted, and the nozzle body is a spherical nozzle body. At least a part of the plurality of injection holes is provided in a mounting surface side hemispherical portion of the spherical nozzle body located on the injection nozzle mounting surface side.

An injection nozzle according to a sixth invention is the injection nozzle according to the fifth invention, wherein at least a part of the plurality of injection holes is provided in the spherical nozzle body, the apex of the spherical nozzle body on the side of the ejection nozzle mounting surface, and the spherical nozzle body. Through the apex on the opposite surface side facing the injection nozzle mounting surface, and is arranged along an arc of a circle drawn on the surface of the spherical nozzle body.

An injection nozzle according to a seventh invention is the injection nozzle according to the fifth invention, wherein at least a part of the plurality of injection holes is provided on the spherical nozzle body, the apex of the spherical nozzle body on the side of the ejection nozzle mounting surface, and the spherical nozzle body. Of the injection nozzle mounting surface and the apex on the opposite surface side facing the injection nozzle are offset from each other in the rotation direction when rotated about the axis.

An injection system according to an eighth aspect of the present invention is an injection system including an injection nozzle that is located inside a space and injects a fluid toward a surface of a partition body that partitions the space, the surface facing the space. The nozzle is the jet nozzle according to any one of the first invention to the seventh invention.

An injection system according to a ninth aspect is characterized in that, in the eighth aspect, the space includes an inner wall having a rectangular tube shape or an inner wall having a cylindrical shape.

An injection system according to a tenth invention is the injection system according to the ninth invention, characterized in that the inner wall is provided between a ceiling and a floor.

According to the injection nozzle of the first aspect of the present invention, the cross-sectional area of at least a part of the plurality of injection holes is such that the respective arrival points of the fluid injected from the plurality of injection holes on the surface of the partition body facing the space are: It is set according to the area of the range partitioned by the fluid arrival line drawn on the surface of the partition body facing the space by the rotation of the nozzle body. This makes it possible to obtain an injection nozzle that is less likely to cause unevenness in fluid spraying even if it is arranged at a position deviated from the center of the space. Further, when the fluid is a liquid, it is possible to suppress liquid dripping in the vicinity of the nozzle body. Thus, it is possible to obtain an injection nozzle that can clean the surface of the partition body facing the space with good cleanliness.

According to the injection nozzle of the second invention, in the first invention, the intervals between the centers of at least some of the plurality of injection holes are equal on the surface of the nozzle body. In this way, it is possible to obtain the injection nozzle in which the dispersion of the fluid is less likely to occur even if the intervals between the centers of at least a part of the injection holes are made equal. Further, when the fluid is a liquid, it is possible to obtain a spray nozzle capable of suppressing liquid dripping in the vicinity of the nozzle body and cleaning the surface of the partition body facing the space with good cleanliness and evenly. You can

According to the injection nozzle of the third aspect of the present invention, at least a part of the plurality of injection holes is located at each of the reaching points of the fluid ejected from the plurality of injection holes on the surface of the partition body facing the space. The intervals are set to be equal, and they are provided along the line extending from each reaching point to the nozzle body. This makes it possible to obtain an injection nozzle that is less likely to cause unevenness in fluid spraying even if it is arranged at a position deviated from the center of the space. Further, when the fluid is a liquid, it is possible to suppress liquid dripping in the vicinity of the nozzle body. Thus, it is possible to obtain an injection nozzle that can clean the surface of the partition body facing the space with good cleanliness.

According to the injection nozzle of the fourth invention, in the first invention, at least a part of the plurality of injection holes is a surface of the partition body facing the space, of the fluid injected from the plurality of injection holes into the nozzle body. The intervals between the respective reaching points are set to be equal, and they are provided along the line extending from the respective reaching points toward the nozzle body. As a result, it is possible to obtain an injection nozzle in which unevenness in fluid dispersion is further suppressed. Further, when the fluid is a liquid, it is possible to more strongly suppress the liquid dripping in the vicinity of the nozzle body.

According to the injection nozzle of the fifth invention, in any one of the first invention to the fourth invention, the partition body has an injection nozzle mounting surface to which the nozzle body is mounted, and the nozzle body is a spherical nozzle body. is there. Then, at least a part of the plurality of injection holes is provided in the mounting surface side hemispherical portion of the spherical nozzle body located on the injection nozzle mounting surface side. Accordingly, it is possible to obtain an injection nozzle in which the dispersion of the fluid on the injection nozzle mounting surface of the partition body is less likely to occur. Further, when the fluid is a liquid, it is possible to suppress liquid dripping in the vicinity of the nozzle body. Accordingly, it is possible to obtain an injection nozzle that can clean the injection nozzle mounting surface of the partition body evenly and uniformly.

According to the jet nozzle according to the sixth aspect, in the fifth aspect, one specific example of the jet nozzle is provided.

According to the injection nozzle of the seventh invention, in the fifth invention, another specific example of the injection nozzle is provided. Further, since a part of the plurality of injection holes is arranged so as to be displaced in the rotational direction, it is possible to prevent at least a part of the plurality of injection holes from interfering with each other.

According to the injection system which concerns on an 8th invention, it is equipped with the injection nozzle as described in any one of 1st invention-7th invention. Thereby, even if the injection nozzle is arranged at a position deviated from the center of the space, it is possible to obtain the injection system in which the fluid dispersion is less likely to be uneven. Further, when the fluid is a liquid, it is possible to suppress liquid dripping in the vicinity of the nozzle body. Thus, it is possible to obtain an injection system capable of uniformly cleaning the surface of the partition body facing the space with good cleanliness.

According to the injection system of the ninth invention, in the eighth invention, a specific example of the space is provided.

According to the injection system of the tenth invention, in the ninth invention, a specific example of the space including the inner wall of the rectangular tube or the inner wall of the cylindrical shape is provided.

FIG. 1 is a schematic perspective view of a bathroom equipped with a bathroom cleaning system using an injection nozzle according to a second embodiment of the present invention. FIG. 2 is a schematic block diagram showing an example of a bathroom cleaning system. FIG. 3A is a diagram showing the relationship between the injection nozzle and the sprinkling line according to the reference example of the present invention. FIG. 3B is a schematic sectional view showing an example of the injection nozzle according to the reference example of the present invention. FIG. 4 is a schematic diagram showing the relationship between the ejection nozzle and the reaching point according to the reference example of the present invention. FIG. 5 is a schematic side view showing a water sprinkling line in a bathroom. FIG. 6 is a schematic perspective view showing a fluid arrival line drawn on the inner surface of the bathroom. FIG. 7A is a schematic plan view showing a fluid reaching line drawn on the ceiling of the bathroom. FIG.7(b) is a schematic side view which shows the fluid reaching line drawn on the inner wall of the bathroom. FIG. 8 is a schematic view showing an example of the injection holes of the injection nozzle according to the first embodiment of the present invention. FIG. 9A is a schematic side view showing an example of the injection nozzle according to the second embodiment of the present invention. FIG. 9B is a schematic perspective view showing an example of the injection nozzle according to the second embodiment of the present invention. FIG. 10 is a schematic diagram showing an example of the injection holes of the injection nozzle according to the second embodiment of the present invention. FIG. 11 is a schematic diagram showing the relationship between the ejection nozzle and the arrival point according to the second embodiment of the present invention. FIG. 12A is a diagram showing the relationship between the injection nozzle and the sprinkling line according to the second embodiment of the present invention. FIG. 12B is a schematic sectional view showing an example of the injection nozzle according to the second embodiment of the present invention. FIG. 13: is a figure which shows the result of the spraying performance confirmation test of the injection nozzle which concerns on 2nd Embodiment of this invention. FIG. 14A is a schematic plan view showing the relationship between the attachment position of the injection nozzle and the arrival point. FIG. 14B is a schematic side view showing the relationship between the attachment position of the injection nozzle and the arrival point. FIG. 15A is a schematic plan view showing the relationship between the attachment position of the injection nozzle and the arrival point. FIG. 15B is a schematic side view showing the relationship between the attachment position of the injection nozzle and the arrival point. 16A and 16B are schematic side views showing the relationship between the attachment position of the injection nozzle and the arrival point on the ceiling according to the reference example. FIG. 17 is a schematic sectional view showing an example of an injection nozzle according to a first modification of the second embodiment of the present invention. FIG. 18 is a schematic cross-sectional view showing an example of an injection nozzle according to a second modification of the second embodiment of the present invention. FIG. 19 is a schematic cross-sectional view showing an example of an injection nozzle according to a third modification of the second embodiment of the present invention. FIG. 20 is a schematic side view showing an example of the injection nozzle according to the fourth modification of the second embodiment of the present invention. FIG. 21 is a schematic side view showing an example of an injection nozzle according to a fifth modification of the second embodiment of the present invention. FIG. 22 is a schematic side view showing an example of the injection nozzle according to the sixth modification of the second embodiment of the present invention. FIG. 23 is a schematic side view showing an example of an injection nozzle according to a seventh modified example of the second embodiment of the present invention. FIG. 24(a) is a schematic side view showing an example of the injection nozzle according to the third embodiment of the present invention. FIG. 24(b) is a schematic perspective view showing an example of an injection nozzle according to the third embodiment of the present invention. FIG. 25 is a schematic side view showing an example of the injection nozzle according to the first modification of the third embodiment of the present invention. FIG. 26 is a schematic side view showing an example of the injection nozzle according to the second modification of the third embodiment of the present invention. FIG. 27 is a diagram showing the relationship between the injection nozzle of the present invention and the water spray area. FIG. 28 is a schematic diagram showing an example of the injection holes of the injection nozzle according to the fourth embodiment of the present invention. FIG. 29 is a view showing the results of the spraying performance confirmation test of the injection nozzle according to the fourth embodiment of the present invention. 30(a) to 30(c) are schematic views showing a spraying method of the injection nozzle according to the fifth embodiment of the present invention. FIG. 31A is a schematic perspective view showing a first example of space. FIG. 31B is a schematic perspective view showing a second example of the space.

Embodiments of the present invention will be described below with reference to the drawings. In each figure, the height direction is the first direction Z and intersects with the first direction Z, for example, one orthogonal plane direction is the second direction X, and intersects with each of the first direction Z and the second direction X. , And another plane direction orthogonal to each other is defined as a third direction Y. Further, in each of the drawings, common parts are designated by common reference numerals, and redundant description will be omitted.

(First embodiment)
<Bathroom cleaning system>
FIG. 1 is a schematic perspective view of a bathroom provided with a bathroom cleaning system using an injection nozzle according to the first embodiment of the present invention. FIG. 2 is a schematic block diagram showing an example of a bathroom cleaning system.

As shown in FIG. 1, the bathroom cleaning system 1 is provided in the bathroom 2. The bathroom 2 is a space. The bathroom 2 includes an inner wall 4, a ceiling 5, and a floor 7. The inner wall 4 is provided between the ceiling 5 and the floor 7. The inner wall 4, the ceiling 5, and the floor 7 are partition bodies that partition the space. The floor 7 is adjacent to the bathtub 3. Each of the inner wall 4 and the ceiling 5 surrounds the upper space of the bathtub 3 and the floor 7 to form the bathroom 2 in the inner space. A shower 8 and a faucet 9 are provided on at least one of the inner walls 4. Outside the bathroom 2, an operation unit 10 for a user to control the bathroom cleaning system 1 is provided. On the ceiling 5, a spray nozzle 16 attached to the bathroom cleaning system 1 and a dryer 22 for drying the inside of the bathroom 2 are provided. The injection nozzle 16 is located inside the bathroom 2, and is attached to, for example, the injection nozzle attachment surface of the bathroom 2. In the first embodiment, the injection nozzle 16 is attached to the ceiling 5 via the attachment portion 32. In the first embodiment, the injection nozzle mounting surface is the ceiling 5.

As shown in FIG. 2, the bathroom cleaning system 1 includes, for example, a water supply source 11, a branch section 12, a supply water spraying unit 17, and a control section 23. The water supply source 11 supplies tap water. The branching part 12 branches tap water from the water supply source 11, guides one to the shower 8 and the faucet 9, and guides the other to the water supply passage 14. The supply water sprinkling unit 17 has a control valve 15 to which tap water is supplied from the water supply passage 14. One end of the control valve 15 is connected to the water supply passage 14, and the other end is connected to the injection nozzle 16. The control valve 15 is a valve for controlling tap water supply or water stoppage based on a control signal from the control unit 23. The tap water is guided from the water supply passage 14 to the injection nozzle 16 via the control valve 15 under the control of the control unit 23. The jet nozzle 16 jets tap water to each of the bathtub 3, the floor 7, the inner wall 4, and the ceiling 5 in the bathroom 2. The control unit 23 controls each of the supply water spraying unit 17 and the dryer 22.

The dryer 22 blows warm air into the bathroom 2 under the control of the controller 23. The dryer 22 sucks in air from the external space, collects heat, and uses the heat to blow hot air into the bathroom 2, or a so-called heat pump method, or internally generates heat to blow hot air into the bathroom 2. An electric heater system or the like may be used. By blowing warm air from the dryer 22, the water in the bathroom 2 evaporates and can be dried. The dryer 22 also includes one that discharges high-humidity air from the bathroom 2 by means of a ventilation fan.

The operation unit 10 is composed of an operation panel or a remote controller installed outside the bathroom 2, and is a device capable of transmitting an operation signal to the control unit 23 through wired communication or wireless communication. When the user inputs to start cleaning the bathroom 2, the operation unit 10 transmits an operation signal reflecting the input to the control unit 23.

The control unit 23 controls the opening/closing of the control valve 15 and the start or stop of drying by the dryer 22. When the operation signal is received from the operation unit 10, the control unit 23 performs various controls based on the user's intention reflected in the operation signal. The control unit 23 may perform these controls based on a program stored in advance under the control of a CPU (Central Processing Unit), for example. The control unit 23 may control, for example, each valve opening time of the control valve 15 and the drying time by the dryer 22 in time series.

<Injection nozzle>
FIG. 3A is a diagram showing the relationship between the injection nozzle according to the first embodiment of the present invention and the water spray line. FIG. 3B is a schematic cross-sectional view showing an example of the injection nozzle according to the first embodiment of the present invention. FIG. 4 is a schematic diagram showing the relationship between the injection nozzle according to the first embodiment of the present invention and the arrival point of the fluid.

As shown in FIGS. 3A to 4, the injection nozzle 16 according to the first embodiment includes a nozzle body 30. The nozzle body 30 is, for example, a spherical nozzle body. In the present specification, the term "spherical" means not only a substantially spherical shape, but also an elliptical sphere, a rugby ball type, an egg type, and other nozzle bodies having a spherical portion, which are collectively referred to as a spherical nozzle body.

A plurality of injection holes 31 are provided on the spherical surface of the nozzle body 30. A liquid, for example, tap water is jetted from the jet holes 31. The nozzle body 30 is provided with a mounting portion 32 (FIG. 4). The nozzle body 30 is attached to the supply water spraying unit 17 via the attachment portion 32. The nozzle body 30 is rotatably attached to the attachment portion 32, for example. Note that, in FIGS. 3A and 3B, the attachment portion 32 is not shown.

The liquid supplied from the supply water spraying unit 17 to the nozzle body 30 is not limited to tap water. For example, dissolved substance-removed water obtained by removing dissolved substances such as silica, calcium, and magnesium from tap water, sterilized and disinfected water obtained by adding sodium hypochlorite to tap water or dissolved substance-removed water, or tap water or dissolved It may be cleaning water in which a cleaning component is added to substance removal water or sterilizing and disinfecting water. Further, the cleaning water may be used during the cleaning, and when the cleaning water is rinsed out, it may be switched to any one of tap water, dissolved substance removing water, and sterilizing/disinfecting water.

Here, the height direction from the floor 7 to the ceiling 5 passing through the center C of the nozzle body 30 is referred to as a first direction Z. An XY plane that passes through the center C of the nozzle body 30 and is orthogonal to the first direction Z is a circular horizontal plane Hxy. In the nozzle body 30, a portion located closer to the ceiling (injection nozzle mounting surface) 5 side than the circular horizontal surface Hxy is a ceiling side hemispherical portion (mounting surface side hemispherical portion) A, and the floor from the circular horizontal surface Hxy and the circular horizontal surface Hxy ( A portion located on each of the ejection nozzle facing surface) 7 side is referred to as a floor side hemispherical portion (opposing surface side hemispherical portion) B.

A part of the injection hole 31 is provided on the surface of the ceiling-side hemisphere portion A, and the rest of the injection hole 31 is provided on the surface of the floor-side hemisphere portion B. Among the injection holes 31, those provided on the surface of the ceiling side hemisphere portion A are referred to as the injection holes 31A, and those provided on the floor side hemisphere portion B are referred to as the injection holes 31B (FIGS. 3A and 3). (B)).

In the injection nozzle 16, the distance La between the injection holes 31A is set so that the angles θv of the water spray lines (lines of the injected fluid) 41 are equal (FIG. 3A). If the ceiling-side hemisphere portion A of the nozzle body 30 is, for example, a substantially true sphere, the intervals La of the injection holes 31A are substantially equal intervals (FIG. 3B). In such an injection nozzle 16, for example, in the surface of the ceiling 5 facing the interior (space) of the bathroom 2 (hereinafter, the surface facing the interior (space) of the bathroom 2 is referred to as “bathroom surface” for convenience). The intervals Lc of the respective reaching points 40 become uneven (FIG. 4). For example, the reaching point 40 becomes denser as it is closer to the ejection nozzle 16, and becomes sparse as it gets farther from the ejection nozzle 16. As it is, on the bathroom surface of the ceiling 5, the amount of water sprinkling increases in the vicinity of the jet nozzle 16, and the amount of water sprinkling decreases as the distance from the jet nozzle 16 increases. As a result, the water spray on the bathroom surface of the ceiling 5 becomes uneven. Therefore, the jet nozzle 16 according to the first embodiment makes it less likely to cause water spray unevenness, as will be described below. In addition, in the present specification, the equal intervals include not only strict equal intervals but also substantially equal intervals. Examples of substantially equal intervals include, for example, intervals in which slight variations such as tolerance in forming holes are generated.

FIG. 5 is a schematic side view showing a water sprinkling line in a bathroom. FIG. 6 is a schematic perspective view showing a fluid arrival line drawn on the inner surface of the bathroom. FIG. 7A is a schematic plan view showing a fluid reaching line drawn on the ceiling of the bathroom. FIG.7(b) is a schematic side view which shows the fluid reaching line drawn on the inner wall of the bathroom. FIG. 8 is a schematic view showing an example of the injection holes of the injection nozzle according to the first embodiment of the present invention. In addition, in the present specification, the influence of gravity is ignored in the fluid reaching line.

As shown in FIG. 5 to FIG. 7B, the arrival points 40 of the fluid ejected from the ejection holes 31</b>A and 31</b>B on the bathroom surfaces of the inner wall 4, the ceiling 5 and the floor 7 are the nozzle bodies 30. A plurality of fluid reaching lines 42 are drawn on the bathroom surfaces of the inner wall 4, the ceiling 5 and the floor 7 by the rotation. 5 to 7(b), as an example of the line of the ejected fluid (sprinkling line 41), 6 toward the inner wall 4, 4 toward the ceiling 5, and 4 toward the floor 7. The book is shown typically.

The fluid reaching line 42 has, for example, a concentric shape on each of the bathroom surface of the ceiling 5 and the bathroom surface of the floor 7, and has a striped shape on the bathroom surface of the inner wall 4. The fluid arrival line 42 defines a plurality of ranges partitioned by the two fluid arrival lines 42 on the bathroom surface of the inner wall 4, the bathroom surface of the ceiling 5, and the bathroom surface of the floor 7. On the bathroom surface of the ceiling 5 and the bathroom surface of the floor 7, the range between the fluid arrival line 42 closest to the inner wall 4 and the inner wall 4 is partitioned by the fluid arrival line 42 and the inner wall 4.

The area of the range partitioned by the fluid arrival line 42 increases on the ceiling 5 from the nozzle body 30 toward the inner wall 4. For example, if the areas SC1 to SC4 are from the nozzle body 30 toward the inner wall 4, the area SC1 in the range closest to the nozzle body 30 is the smallest, and the areas SC2 and SC3 increase in the order from the nozzle body 30. Go However, the area SC4 closest to the inner wall 4 is not necessarily the largest because it is partitioned by the inner wall 4.

When the area of the range partitioned by the fluid arrival line 42 increases, the amount of liquid required for cleaning increases. On the bathroom surface of the ceiling 5, the amount of liquid required for cleaning is the smallest in the range closest to the nozzle body 30, and increases as it approaches the inner wall 4.

Therefore, as shown in FIG. 8, in the injection nozzle 16, the cross-sectional areas SH1 to SH4 of the injection holes 31A are set according to the areas SC1 to SC4 of the range partitioned by the fluid arrival line 42. For example, in the ceiling-side hemisphere A of the nozzle body 30, the liquid ejected from the ejection holes 31Af near the floor is directed toward the inner wall 4, and the liquid ejected from the ejection holes 31An near the ceiling is near the ejection nozzle 16. Go to In the first embodiment, using this knowledge, for example, the cross-sectional areas SH1 to SH4 of the injection holes 31A are increased from the injection holes 31An close to the ceiling side to the injection holes 31Af close to the floor side (SH1<SH2. <SH3<SH4). The intervals La between the centers of the injection holes 31A are, for example, substantially equal intervals (La1≈La2≈La3).

With such an injection nozzle 16, the cross-sectional areas SH1 to SH4 of the injection holes 31A in the ceiling-side hemisphere A are set according to the areas SC1 to SC4, so that the injection holes 31A of the injection holes 31A are formed on the surface of the nozzle body 30. Even if the distance La between the centers is set to be equal, unevenness is less likely to occur in water spraying on the bathroom surface of the ceiling 5. As a result, for example, the bathroom surface of the ceiling 5 can be cleaned more cleanly, as compared with, for example, an injection nozzle in which the cross-sectional areas SH1 to SH4 of the injection holes 31A are equal. An example of setting the cross-sectional areas SH1 to SH4 is to increase the cross-sectional area from the injection hole 31An toward the injection hole 31Af.

Furthermore, the injection nozzle 16 injects a liquid, such as cleaning water, as a fluid. According to the spray nozzle 16, the cross-sectional area of the spray hole 31A for spraying the wash water to the vicinity of the nozzle body 30 of the ceiling 5 is reduced. Therefore, when the fluid is, for example, cleaning water, the amount of cleaning water supplied to the bathroom surface of the ceiling 5 near the nozzle body 30 is equal to the amount of cleaning water supplied to the bathroom surface of the ceiling 5 at a location distant from the nozzle body 30. It can be reduced relatively compared to the supply amount. For example, the amount of wash water supplied to the bathroom surface of the ceiling 5 near the nozzle body 30 can be reduced to a value substantially equal to the amount of wash water supplied to the bathroom surface of the ceiling 5 located away from the nozzle body 30. Is. According to this, in the vicinity of the nozzle body 30, it is possible to suppress the excessive supply of cleaning water, and it is possible to suppress the dripping of the cleaning water that drops from the bathroom surface of the ceiling 5. When the liquid drips on the bathroom surface of the ceiling 5 near the nozzle body 30, the sprayed cleaning water spoils the spray line 41 of the cleaning water sprayed from the nozzle body 30. If the sprinkling line 41 is obstructed, it becomes difficult for the cleaning water to reach the bathroom surface of the ceiling 5, making it difficult to uniformly clean the bathroom surface of the ceiling 5. Such a situation can be solved by the injection nozzle 16 because it is possible to suppress, for example, the dripping of wash water in the vicinity of the nozzle body 30. Therefore, according to the injection nozzle 16, for example, the bathroom surface of the ceiling 5 can be cleaned with good cleanliness and evenly.

In the first embodiment, the cross-sectional area of the injection hole 31A for the ceiling-side hemisphere portion A is set according to the area of the range partitioned by the fluid arrival line 42, but the injection hole 31B for the floor-side hemisphere portion B is also set. The cross-sectional area of may be set according to the area of the range partitioned by the fluid arrival line 42.

(Second embodiment)
<Injection nozzle>
FIG. 9A is a schematic side view showing an example of the injection nozzle according to the second embodiment of the present invention. FIG. 9B is a schematic perspective view showing an example of the injection nozzle according to the second embodiment of the present invention. FIG. 10 is a schematic diagram showing an example of the injection holes of the injection nozzle according to the second embodiment of the present invention.

As shown in FIGS. 9A to 10, the injection nozzle 16 a according to the second embodiment includes a nozzle body 30. The nozzle body 30 is, for example, a spherical nozzle body. A plurality of injection holes 31 are provided on the spherical surface of the nozzle body 30. A part of the injection hole 31 is provided on the surface of the ceiling-side hemisphere portion A, and the rest of the injection hole 31 is provided on the surface of the floor-side hemisphere portion B.

Each of the injection hole 31A and the injection hole 31B passes through a vertex V5 on the ceiling (mounting surface) 5 side of the nozzle body 30 and a vertex V7 on the floor (opposing surface) 7 side of the nozzle body 30 and passes through the spherical nozzle body 30. Are arranged along the arc AR of one circle drawn on the surface of the. The arrangement of the injection holes 31A and the injection holes 31B is the same in the first embodiment. The intervals Lb1 to Lb4 of the injection holes 31B along the arc AR are equal intervals. On the other hand, the intervals La1 to La3 of the injection hole 31A along the arc AR are unequal intervals. For example, as shown in FIG. 9A and FIG. 10, the intervals La1 to La3 of the injection hole 31A along the arc AR widen from the circular horizontal plane Hxy toward the ceiling 5 (La1<La2<La3). ). Further, as shown in FIG. 10, as the intervals La1 to La3, the intervals between the centers of the injection holes 31A may be selected as in the first embodiment. FIG. 10 shows an example in which the cross-sectional areas SH1 to SH4 of the injection holes 31A are made substantially equal to each other as one example of the injection nozzles in which the intervals La1 to La3 are unequal intervals (SH1≈SH2≈SH3≈). SH4). However, the cross-sectional areas SH1 to SH4 of the injection holes 31A are set to “SH1<SH2<SH3<SH4” according to the areas SC1 to SC4, as described in the first embodiment. It is even better since unevenness can be less likely to occur when water is sprayed onto the bathroom surface of the ceiling 5. One example of such an injection nozzle in which the intervals La1 to La3 are unequal intervals and the cross-sectional areas SH1 to SH4 are “SH1<SH2<SH3<SH4” will be described later as another embodiment. ..

FIG. 11 is a schematic diagram showing the relationship between the injection nozzle according to the second embodiment of the present invention and the arrival point. FIG. 12A is a diagram showing the relationship between the injection nozzle according to the second embodiment of the present invention and the water spray line. FIG. 12B is a schematic sectional view showing an example of the injection nozzle according to the second embodiment of the present invention.

As shown in FIGS. 11 to 12B, in the nozzle 16a, the distance Lc between the reaching points 40 is set to be even on the bathroom surface of the ceiling 5. A watering line 41 is virtually set from each reaching point 40 toward the nozzle body 30, for example, toward the center C of the nozzle body 30. 31 A of injection holes are provided in the nozzle body 30 along the sprinkling line 41. As a result, the intervals La of the injection holes 31A become unequal intervals. Reference numerals (1) to (8) in FIG. 11 indicate watering areas. The reference numeral (0) around the injection nozzle 16 indicates a region where water is not sprayed in the embodiment. This also applies to FIG.

In the injection nozzle 16a, the distance La between the injection holes 31A is set so that the distance Lc between the reaching points 40 is uniform. If the ceiling-side hemisphere portion A of the nozzle body 30 is, for example, a substantially true sphere, the intervals La of the injection holes 31A are unequal intervals. In the example shown in FIGS. 9A and 9B, the injection holes 31A are arranged along the arc AR. The injection hole 31Af closest to the circular horizontal plane Hxy is an injection hole through which water is sprayed from the injection nozzle 16 to the farthest portion of the ceiling 5. Further, the injection hole 31An that is the farthest from the circular horizontal plane Hxy and is closest to the vertex V5 on the ceiling 5 side is an injection hole that sprays water from the injection nozzle 16 to the closest portion of the ceiling 5.

In the injection nozzle 16a including the nozzle body 30 having the injection holes 31A, the intervals Lc of the fluid arrival points 40 on the bathroom surface of the ceiling 5 are made uniform. Therefore, also in the spray nozzle 16a, as in the spray nozzle 16, unevenness in water spraying on the bathroom surface of the ceiling 5 is less likely to occur. Thereby, for example, the bathroom surface of the ceiling 5 can be cleaned with higher cleanliness.

Furthermore, according to the injection nozzle 16a, the distance Lc between the reaching points 40 is increased in the vicinity of the nozzle body 30 on the ceiling 5. Therefore, the amount of wash water supplied to the bathroom surface of the ceiling 5 near the nozzle body 30 can be reduced. Therefore, also in the injection nozzle 16a, similarly to the first embodiment, it is possible to suppress the dripping of the wash water in the vicinity of the nozzle body 30. Accordingly, for example, the bathroom surface of the ceiling 5 can be cleaned with good cleanliness and evenly.

FIG. 13: is a figure which shows the result of the spraying performance confirmation test of the injection nozzle which concerns on 2nd Embodiment of this invention. Watering areas (1) to (8) shown in FIG. 13 correspond to (1) to (8) shown in FIG.

As shown in FIG. 13, the distance from the center of the attachment position of the injection nozzle 16a of the reaching point 40 corresponding to each of the watering areas (1) to (8) is
(1) 60 mm
(2) 142 mm
(3) 224 mm
(4) 306 mm
(5) 388 mm
(6) 470 mm
(7) 552 mm
(8) 634 mm
Is.

The measured value of the reaching point 40 is
(1) 60 mm
(2) 140 mm
(3) 220 mm
(4) 305 mm
(5) 385 mm
(6) 475 mm
(7) 560 mm
(8) 650 mm
Is.

The set value of the landing interval (interval Lc) is
(1) 60 mm
(2) 82 mm
(3) 82 mm
(4) 82 mm
(5) 82 mm
(6) 82 mm
(7) 82 mm
(8) 82 mm
And evenly.

The measured value of the landing interval (interval Lc) is
(1) 60.0 mm
(2) 80.0 mm
(3) 80.0 mm
(4) 85.0 mm
(5) 80.0 mm
(6) 90.0 mm
(7) 85.0 mm
(8) 90.0 mm
Met. As described above, in the second embodiment, the reaching points 40 of the ceiling 5 can be made substantially even.

As described above, according to the second embodiment in which the reaching points 40 of the ceiling 5 can be made substantially even, even if the injection nozzle 16a is arranged at a position outside the sprinkling space, for example, the center of the bathroom 2, the bathroom of the ceiling 5 It is possible to obtain an advantage that unevenness is less likely to occur in water spraying on the surface (jet nozzle mounting surface).

Hereinafter, the injection nozzle according to the second embodiment of the present invention will be described in more detail.
FIGS. 14A and 15A are schematic plan views showing the relationship between the attachment position of the injection nozzle 16 and the reaching point 40. FIGS. 14B and 15B are schematic side views showing the relationship between the attachment position of the injection nozzle 16 and the reaching point 40. The schematic side surface shown in FIG. 14B is along the line BB in FIG. The schematic side surface shown in FIG. 15B is along the line BB in FIG.

<When installing the injection nozzle in the center of the ceiling>
FIGS. 14A and 14B show a case where the injection nozzle 16 a is attached to the ceiling center BC of the bathroom 2. The planar shape of the ceiling 5 is assumed to be rectangular.

As shown in FIGS. 14A and 14B, the ceiling 5 having a rectangular planar shape has a long axis, a short axis, and a diagonal axis. In this specification, the major axis direction Dx of the ceiling 5 is the second direction X, and the minor axis direction Dy is the third direction Y. The direction of the diagonal axis is the diagonal axis direction Dd. On the ceiling 5, the furthest portions from the center BC of the ceiling are corners 6a to 6d of the bathroom 2. That is, the length of the ceiling 5 along the diagonal direction Dd is longer than the length along the long axis direction Dx.

When the injection hole 31A is provided in the nozzle body 30, it is considered that the ceiling 5 has a long length along the diagonal direction Dd. For example, the reaching point 40 is set in the vicinity of any one of the corners 6a to 6d or any one of the corners 6a to 6d. A water spray line 41 is set from this reaching point 40 toward the center C (not shown: see FIGS. 9A and 9B, etc.) of the nozzle body 30 of the injection nozzle 16 attached to the ceiling center BC. .. The injection hole 31Af is provided in the nozzle body 30 along the water spray line 41.

Further, a plurality of other reaching points 40 are set so that the reaching points 40 are evenly spaced, and a plurality of water spray lines 41 are set toward the center C of the nozzle body 30 for each of the reaching points 40. .. The plurality of injection holes 31A are provided in the nozzle body 30 up to the injection holes 31Af along each of these water spray lines 41.

In this way, by providing each of the injection holes 31Af to 31An in the nozzle body 30, the distance from the attachment position of the injection nozzle 16 to the position of the farthest arrival point on the ceiling 5 (the injection nozzle attachment surface) is changed. Even if the directions are different (for example, the long-axis direction Dx, the short-axis direction Dy, and the diagonal direction Dd), water can be sprayed on the entire ceiling 5, and the ceiling 5 can be cleaned cleanly.

<When installing the injection nozzle at a position off the center of the ceiling>
15(a) and 15(b) show a case where the injection nozzle 16a is attached to a position off the ceiling center BC of the bathroom 2. The planar shape of the ceiling 5 is assumed to be rectangular.

As shown in FIGS. 15(a) and 15(b), the case where the injection nozzle 16a is mounted at a position off the ceiling center BC has also been described with reference to FIGS. 14(a) and 14(b). In consideration of the fact that the length along the diagonal direction Dd is long in the ceiling 5 as in the method, the injection hole 31A may be provided in the nozzle body 30. For example, when the injection nozzle 16a is attached near the corner 6a, the farthest portion from the injection nozzle 16 is the corner 6c of the bathroom 2. Therefore, the reaching point 40 is set in the corner 6c or in the vicinity of the corner 6c. From this reaching point 40, a water sprinkling line 41 is set toward the center C of the nozzle body 30 of the injection nozzle 16a attached near the corner 6a. The injection hole 31Af is provided in the nozzle body 30 along the water spray line 41.

Further, a plurality of other reaching points 40 are set so that the intervals between the reaching points 40 are equal, and a plurality of water sprinkling lines 41 are set toward the center C of the nozzle body 30 for each of these reaching points 40. The plurality of injection holes 31A may be provided in the nozzle body 30 up to the injection holes 31Af along each of the water spray lines 41.

16A and 16B are schematic side views showing the relationship between the attachment position of the injection nozzle 16r and the reaching point 40 according to the reference example. The schematic side surface shown in FIG. 16A corresponds to the schematic side surface shown in FIG. 14B, and FIG. 16B corresponds to the schematic side surface shown in FIG. 15B.

In the injection nozzle 16r according to the reference example, the interval La between the injection holes 31A is set so that the angle θv of the water spray line 41 is uniform. Therefore, the injection hole 31A capable of spraying the farthest portion from the injection nozzle 16r is, for example, the injection hole 31Af deviated from the circular horizontal plane Hxy by the angle θv. That is, in the injection nozzle 16r, the position of the farthest arrival point is determined by the injection hole 31Af. Therefore, when the injection nozzle 16r is attached to the ceiling center BC, the injection nozzle 16r is attached in the vicinity of the corner 6a even if water can be sprayed on the entire ceiling 5 as shown in FIG. 16(a). In this case, as shown in FIG. 16( b ), a spot 50 on the ceiling 5 where watering is difficult occurs.

Against such a circumstance, in the second embodiment, regardless of the angle θv of the sprinkling line 41, attention is paid to the farthest reaching point 40, and further from the farthest reaching point 40. , The other reaching point 40 is determined while the distance Lc is made uniform. The farthest reaching point changes depending on the planar shape and size of the ceiling 5, the mounting position of the injection nozzle 16a, and the like. In the second embodiment, the reaching point 40 that is the farthest reaching point is determined while appropriately dealing with such changes.

According to the spray nozzle 16a thus obtained, even if the planar shape of the ceiling 5, the size thereof, and the mounting position of the spray nozzle 16a are changed, the spraying difficult spot 50 does not occur and the ceiling 5 of the ceiling 5 is not generated. Water can be sprinkled on the whole, including the corners of the ceiling 5. Therefore, the entire ceiling 5, including its corners, can be cleaned cleanly.

<First Modification>
FIG. 17 is a schematic cross-sectional view showing an example of the injection nozzle 16ma according to the first modified example of the second embodiment of the present invention. The schematic cross section shown in FIG. 17 corresponds to the schematic cross section shown in FIG. In addition, the sprinkling line 41 is illustrated in FIG.

As shown in FIG. 17, the injection nozzle 16ma according to the first modification is different from the injection nozzle 16 in that the nozzle body 30ma has an elliptical spherical surface. In this way, the nozzle body 30ma does not have to be a sphere (for example, a substantially true sphere). In the nozzle body 30ma, the major axis has an elliptical shape along the first direction Z. Even if the nozzle body 30ma has an elliptical shape, the plurality of injection holes 31A have a sprinkling line obtained by setting the intervals Lc of the reaching points 40 equally, as in the case of a sphere (for example, substantially spherical) shape. The nozzle body 30ma may be provided along the line 41.

<Second Modification>
FIG. 18 is a schematic cross-sectional view showing an example of the injection nozzle 16mb according to the second modified example of the second embodiment of the present invention. The schematic cross section shown in FIG. 18 corresponds to the schematic cross section shown in FIG. In addition, the sprinkling line 41 is illustrated in FIG.

As shown in FIG. 18, the injection nozzle 16mb according to the second modification is different from the injection nozzle 16ma in that the nozzle body 30mb has an elliptical shape whose major axis extends along the second direction X. The nozzle body 30mb may have an elliptical shape whose major axis is along the second direction X.

<Third Modification>
FIG. 19 is a schematic cross-sectional view showing an example of the injection nozzle 16mc according to the third modification of the second embodiment of the present invention. The schematic cross section shown in FIG. 19 corresponds to the schematic cross section shown in FIG. A sprinkling line 41 is shown in FIG.

As shown in FIG. 19, the injection nozzle 16mc according to the third modification is different from the injection nozzle 16mb in that the nozzle body 30mc is an elliptical shape whose major axis is along the first direction Z in the ceiling-side hemisphere portion A. Yes, the floor-side hemisphere B is spherical. The nozzle body 30mc has an approximately egg shape. Like the nozzle body 30mc, the nozzle body may have a combination of an elliptical spherical surface and a substantially spherical spherical surface.

As shown in the first to third modifications, the nozzle body 30 can be deformed into a shape having various spherical surfaces like the elliptical nozzle bodies 30ma and 30mb or the egg type nozzle body 30mc. It is possible. Furthermore, the nozzle body 30 can be appropriately deformed into a shape having a spherical surface other than those shown in FIGS. 17 to 19.

Further, although not particularly shown, the sprinkling line 41 may not be focused on the center C of the nozzle body 30. The point where the sprinkling line 41 converges may be located at different positions in the ceiling-side hemisphere portion A and the floor-side hemisphere portion B, for example.

<Fourth Modification>
FIG. 20 is a schematic side view showing an example of the injection nozzle 16md according to the fourth modification of the second embodiment of the present invention. The schematic side surface shown in FIG. 20 corresponds to the schematic side surface shown in FIG.

As shown in FIG. 20, the injection nozzle 16 md according to the fourth modification is different from the injection nozzle 16 in terms of not only the distance Lc between the reaching points 40 of the ceiling 5 but also the distance Ld between the reaching points 40 d of the floor 7. That is, it is set evenly. Further, the distance Le between the reaching points 40e of the inner wall 4 may be set evenly.

In the nozzle body 30md of the ejection nozzle 16md, among the plurality of ejection holes 31B (not shown: see FIG. 9, etc.), the ejection holes 31B for ejecting the liquid toward the floor 7 are set at equal intervals Ld. The nozzle body 30md is provided along the obtained water spray line 41. In addition, when the spacing Le is also set to be uniform, among the plurality of spray holes 31B, the spray holes 31B that spray liquid toward the inner wall 4 follow the water spray line 41 obtained by setting the spacing Le to be uniform. Provided on the nozzle body 30 md.

Thus, not only for the injection holes 31A but also for the injection holes 31B, at least one of the intervals Ld between the reaching points 40d of the floor 7 and the reaching points 40e of the inner wall 4 is set to be equal, The nozzle body 30md may be provided along the water spray line 41 extending from each reaching point 40d and/or 40e to the nozzle body 30md.

<Fifth Modification>
FIG. 21 is a schematic side view showing an example of the injection nozzle 16me according to the fifth modification of the second embodiment of the present invention. The schematic side surface shown in FIG. 21 corresponds to the schematic side surface shown in FIG.

As shown in FIG. 21, the injection nozzle 16me according to the fifth modification is different from the injection nozzle 16md in that the injection nozzle 16me is attached at a position deviated from the ceiling center BC.

Even when the injection nozzle 16me is installed at a position deviated from the center BC of the ceiling, the injection holes 31B (not shown: see FIGS. 9A and 9B, etc.) are separated by the distance between the arrival points 40d of the floor 7. Ld and at least one of the distances Le between the reaching points 40e of the inner wall 4 are set to be even, and are provided in the nozzle body 30me along the water spray line 41 extending from each reaching point 40d and/or 40e to the nozzle body 30me. It is possible.

<Sixth Modification>
FIG. 22 is a schematic side view showing an example of the injection nozzle 16mf according to the sixth modified example of the second embodiment of the present invention. The schematic side surface shown in FIG. 22 corresponds to the schematic side surface shown in FIG.

As shown in FIG. 22, the injection nozzle 16mf according to the sixth modification is different from the injection nozzle 16me in that the reaching point 40f is set on the inner wall 4 close to the injection nozzle 16mf.

When the injection nozzle 16mf is attached to a position deviated from the center BC of the ceiling, an inner wall 4 on the near side close to the injection nozzle 16mf and an inner wall 4 on the far side far from the injection nozzle 16mf are generated on the inner wall 4. .. When the inner wall 4 on the near side and the inner wall 4 on the far side occur, the arrival point 40f may be set to the inner wall 4 on the near side. In the injection nozzle 16mf, the injection holes 31B (not shown: see FIG. 9A and FIG. 9B, etc.) are set so that the distance Lf between the reaching points 40f of the inner wall 4 on the near side is uniform. The nozzle body 30mf is provided along the water spray line 41 extending from each reaching point 40f to the nozzle body 30mf.

<Seventh Modification>
FIG. 23 is a schematic side view showing an example of an injection nozzle 16mg according to a seventh modified example of the second embodiment of the present invention. The schematic side surface shown in FIG. 23 corresponds to the schematic side surface shown in FIG.

As shown in FIG. 23, the injection nozzle 16 mg according to the seventh modification is different from the injection nozzle 16 mf in that the inner wall 4 on the far side far from the injection nozzle 16 mf and the inner wall 4 close to the injection nozzle 16 mg are respectively. Is to set the reaching point 40e and the reaching point 40f.

In the injection nozzle 16mg, the injection holes 31B (not shown: see FIG. 9A and FIG. 9B, etc.) set the intervals Le of the reaching points 40e evenly, and further set the interval Lf of the reaching points 40f. The nozzle bodies 30 mg are set evenly and are provided on the nozzle body 30 mg along the water spray line 41 extending from the respective reaching points 40e and 40f toward the nozzle body 30mf.

In the fourth to seventh modified examples, the intervals Lc, Ld, Le, and Lf may be set to the optimum intervals in consideration of the water spray amount and the like. That is, the intervals Lc, Ld, Le, and Lf may be different.

(Third Embodiment)
<Injection nozzle>
FIG. 24(a) is a schematic side view showing an example of the injection nozzle according to the third embodiment of the present invention. FIG. 24(b) is a schematic perspective view showing an example of an injection nozzle according to the third embodiment of the present invention.

As shown in FIGS. 24(a) and 24(b), the injection nozzle 16b according to the third embodiment is different from the injection nozzle 16 in that the injection hole 31A is displaced in the radial direction of the nozzle body 30, That is, it is provided on the surface of the nozzle body 30. Further, in the injection nozzle 16b, the injection hole 31B is also provided on the surface of the nozzle body 30 so as to be displaced in the radial direction of the nozzle body 30. Each of the injection holes 31A passes through the apex V5 on the ceiling 5 side of the nozzle body 30 and the apex V7 on the floor 7 side of the nozzle body 30, and does not follow the arc AR of one circle drawn on the surface of the nozzle body 30. Alternatively, it may be provided along each of the arcs AR of other circles. The angles θh separating the adjacent arcs AR on the circular horizontal plane Hxy are, for example, equal.

In the injection nozzle 16b, the injection hole 31A is provided on the surface of the nozzle body 30 while being displaced in the radial direction of the nozzle body 30. Accordingly, the injection hole 31A can be provided on the surface of the nozzle body 30 without the injection hole 31A interfering with each other. The interference of the injection holes 31A occurs when the size of the nozzle body 30 is reduced, or when the large bathroom 2 is washed, when the distance between the injection holes 31A along the arc AR is narrowed.

According to the third embodiment, even when the size of the nozzle body 30 is reduced or when the large bathroom 2 is cleaned, the nozzle body 30 can be provided on the surface of the nozzle body 30 without interfering with the injection hole 31A. it can.

<First Modification>
FIG. 25 is a schematic side view showing an example of the injection nozzle according to the first modification of the third embodiment of the present invention.

As shown in FIG. 25, the injection nozzle 16bma according to the first modification is different from the injection nozzle 16b in that the injection holes 31A are provided on the surface of the nozzle body 30 in a laterally dispersed manner. ..

In this way, when the injection hole 31A is displaced in the radial direction of the nozzle body 30, the injection hole 31A is located on the spherical surface of the nozzle body 30, the vertex V5 on the ceiling 5 side of the nozzle body 30, and the floor 7 of the nozzle body 30. It is also possible to disperse on the spherical surface of the nozzle body 30, for example, to disperse on the spherical surface of the nozzle body 30, for example, to disperse on the spherical surface of the nozzle body 30 without passing through the apex V7 on the side and riding on the arc AR of one circle drawn on the surface of the nozzle body 30 It is possible.

<Second Modification>
FIG. 26 is a schematic side view showing an example of the injection nozzle according to the second modification of the third embodiment of the present invention.

As shown in FIG. 26, the injection nozzle 16bmb according to the second modification is different from the injection nozzle 16bmb in that the injection holes 31B are also provided on the surface of the nozzle body 30 in a laterally dispersed manner. ..

In this way, the injection holes 31B may also be provided on the spherical surface of the nozzle body 30 when they are displaced in the radial direction of the nozzle body 30, for example, they may be provided on the left and right sides.

Each of the third embodiment, the first modification of the third embodiment, and the second modification of the third embodiment can be implemented in combination with the first to seventh modifications of the second embodiment. Is.

Further, in the first embodiment, the arrangement of the injection holes 31A and 31B can be modified as in the third embodiment, the first modification of the third embodiment, and the second modification of the third embodiment. Is.

(Fourth Embodiment)
<Injection nozzle>
FIG. 27 is a diagram showing the relationship between the injection nozzle of the present invention and the water spray area. FIG. 28 is a schematic diagram showing an example of the injection holes of the injection nozzle according to the fourth embodiment of the present invention.

The jet nozzle 16c according to the fourth embodiment is an example in which the jet nozzle 16 according to the first embodiment and the jet nozzle 16c according to the second embodiment are combined.

Even when the distance Lc between the reaching points 40 is set to be uniform as in the second embodiment, the reaching points 40 on the bathroom surface of the ceiling 5 of the liquid ejected from the ejection holes 31 are arranged at the nozzle bodies 30c. The range partitioned by the fluid arrival line 42 drawn on the bathroom surface of the ceiling 5 by the rotation of is assumed. The range is the watering areas (1) to (8). Also in the water spray regions (1) to (8), these areas increase as they go from the injection nozzle 16c to the inner wall 4. As the area of the watering areas (1) to (8) increases, the amount of liquid required for cleaning increases. Therefore, the closer to the inner wall 4, the more liquid is required.

Therefore, as shown in FIG. 28, in the injection nozzle 16c, the cross-sectional areas SH1 to SH4 of the injection holes 31A are set according to the areas of the water spray regions (1) to (8). In the nozzle body 30c, the liquid ejected from the ejection hole 31Af close to the floor is directed to the inner wall 4, and the liquid ejected from the ejection hole 31An close to the ceiling is directed to the vicinity of the ejection nozzle 16c. In the fourth embodiment, the cross-sectional area of the injection hole 31A is increased on the floor side, and the cross-sectional area of the injection hole 31A is decreased toward the ceiling side (SH1<SH2<SH3<SH4). Further, the intervals La1 to La3 of the injection hole 31A along the arc AR are unequal intervals (La1<La2<La3).

FIG. 29 is a view showing the results of the spraying performance confirmation test of the injection nozzle according to the fourth embodiment of the present invention.

As shown in FIG. 29, the area of the watering area (8) closest to the inner wall 4 is about 6.5 to 6.7 times the area of the watering area (1) closest to the injection nozzle 16c. Therefore, the area of the injection hole 31A is
(1) 0.2 mm ²
(2) 0.4 mm ²
(3) 0.5 mm ²
(4) 0.7 mm ²
(5) 0.8 mm ²
(6) 1.0 mm ²
(7) 1.2 mm ²
(8) 1.3 mm ²
Then, it was increased from the watering area (1) toward the watering area (8).

The measured value of the amount of water jetted from the jet hole 31A is
(1) 40 mL
(2) 80 mL
(3) 95 mL
(4) 135 mL
(5) 155 mL
(6) 190 mL
(7) 215 mL
(8) 235 mL
Met.

The ratio of sprinkling volume to sprinkling area (1) is
(1) 1.0
(2) 2.0
(3) 2.4
(4) 3.4
(5) 3.9
(6) 4.8
(7) 5.4
(8) 5.9
Then, it became larger from the watering area (1) toward the watering area (8). In the watering area (8), the amount of watering was about 5.9 times that in the watering area (8).

Also, the difference between the area ratio and the water spray ratio is
(1)-
(2) 0%
(3) -5%
(4) -4%
(5) -3%
(6) -5%
(7)-10%
(8) -10%
Met. If the difference is within ±10%, the result is that it can be sufficiently used for practical use.

As described above, according to the fourth embodiment in which the water spray amount can be increased toward the inner wall 4, even if the injection nozzle 16c is arranged at a position outside the center of the water spray space, for example, the bathroom 2, the water spray region (1). By setting the cross-sectional area of the injection hole 31A according to each area of (8) to (8), it is possible to obtain the injection nozzle 16c that can inject the liquid with an appropriate amount of water spray onto the bathroom surface of the ceiling 5.

The fourth embodiment can be implemented in combination with each of the first to seventh modifications of the second embodiment, the third embodiment, and the first and second modifications of the third embodiment.

(Fifth Embodiment)
<Sprinkling method>
The fifth embodiment relates to a watering method.
30(a) to 30(c) are schematic views showing a spraying method of the injection nozzle according to the fifth embodiment of the present invention.

In the washing of the bathroom 2, after washing water sprinkling shown in FIG. 30(a), rinsing water sprinkling using tap water etc. shown in FIG. 30(b) is performed.

When sprinkling wash water, the wash water may splash to areas where it is not originally sprinkled. Such a water drop is indicated by reference numeral 43. Since the water droplets 43 are splashed to the area where water is not sprinkled, they cannot be washed away even during sprinkling with rinsing water.

Therefore, in the fifth embodiment, as shown in FIGS. 30(a) and 30(b), the water pressure or the water amount at the time of sprinkling the wash water is lower than that at the time of sprinkling the rinse water. Alternatively, when sprinkling rinse water, the water pressure or the amount of water is increased more than when sprinkling wash water. This makes it possible to wash off the water droplets 43 splashed to the non-sprayed area at the time of sprinkling the wash water at the time of sprinkling the rinse water.

Therefore, as shown in FIG. 30( c ), even if the interior of the bathroom 2 is dried by the dryer 22, the water droplets 43 do not remain as dirt or scale.

According to the fifth embodiment as described above, the water pressure or the amount of water at the time of sprinkling wash water is lower than that at the time of sprinkling rinse water. Alternatively, during sprinkling of rinsing water, by increasing the water pressure or the amount of water as compared with sprinkling of washing water, it is possible to further reduce stains and scales remaining in the bathroom 2 that remain after washing.

Further, in order to improve the cleaning effect, as in the fifth embodiment, after dissolving water containing a detergent component is sprinkled, dissolved water such as silica, calcium and magnesium is removed from tap water to remove dissolved substance. It is advisable to carry out rinsing with water using. As a result, silica, calcium, magnesium, and the like are further suppressed from remaining as, for example, scale.

Also, in order to improve the drying effect, it is advisable to heat the rinsing water. The warmed rinse water is more likely to evaporate than the unheated rinse water. Therefore, the operating time of the dryer 22 can be shortened and the running cost of the bathroom cleaning system can be reduced.

Such a fifth embodiment is, for example, the second embodiment, first to seventh modifications of the second embodiment, the third embodiment, the first and second modifications of the third embodiment, and the fourth embodiment. It may be implemented in combination with at least one of the embodiments. By carrying out in combination, even if the injection nozzle 16 is arranged at a position deviated from the center of the sprinkling space, the sprinkling of water on the mounting surface of the injection nozzle is less likely to occur, and dirt and scales are less likely to remain. Further advantages can be obtained.

(Sixth Embodiment)
<Space>
FIG. 31A is a schematic perspective view showing a first example of space. FIG. 31B is a schematic perspective view showing a second example of the space.

As shown in FIG. 31( a ), the space may include the inner wall 4 having a rectangular tube shape, and as shown in FIG. 31( b ), the space may include the inner wall 4 having a cylindrical shape. The inner wall 4 is provided between the ceiling 5 and the floor 7. A typical example of the space including the inner wall 4 having a rectangular tubular shape is the bathroom 2 described above. The space including the inner wall 4 having a rectangular tube shape is not limited to the bathroom 2, but may be a room other than the bathroom 2. Typical examples of the space including the cylindrical inner wall 4 are, for example, a tank and a chamber. The tank and the chamber are not limited to the cylindrical space, and may be a space including the inner wall 4 having a rectangular tube shape. Similarly, the bathroom 2 and the room are not limited to the space including the inner wall 4 having a rectangular tube shape, and may be a space including the inner wall 4 having a cylindrical shape.

Each of the space including the rectangular inner wall 4 and the space including the cylindrical inner wall 4 includes a ceiling 5, a floor 7, and an inner wall 4 as partition bodies. However, at least one of the inner wall 4, the ceiling 5, and the floor 7 may be omitted. For example, the partition may be only the ceiling 5 or the floor 7. Further, the partition body may be only the inner wall 4 and the ceiling 5, or may be only the inner wall 4 and the floor 7. Further, the partition may be only the inner wall 4, or only the ceiling 5 and the floor 7.

Further, the ceiling 5 of the space is not limited to a flat ceiling, and may be a ceiling having a curved surface such as a dome-shaped ceiling. Further, the ceiling 5 of the space is not limited to being horizontally arranged, but may be a ceiling that is inclined with respect to the horizontal, such as an inclined ceiling.

The embodiments of the present invention have been described above. The present invention is not limited to the above embodiment. For example, the injection nozzle according to the embodiment is used for cleaning the surface of the partition body facing the space,
Disinfecting the space-facing surface of the compartment,
・Mold-proofing of the surface of the compartment facing the space,
-The surface of the compartment facing the space is subjected to antibacterial treatment (in this specification, antibacterial includes antibacterial),
-Covering the space-facing surface of the compartment with a substance capable of fixing to the space-facing surface of the compartment; and-the temperature of the compartment-facing surface and the temperature of the interior of the space. Changing at least one of
Can be used for at least one of the above.

A coating can be mentioned as an example of covering the space-facing surface of the compartment with a substance that can be fixed to the space-facing surface of the compartment. Examples of coatings include coating of the surface of the partition facing the space, application of a rust inhibitor on the surface of the partition facing the space, and waterproof coating of the surface of the partition facing the space. it can.

In addition, changing at least one of the temperature of the surface of the partition body facing the space and the temperature inside the space can be temperature control. For example, as an example of temperature control, it is possible to warm the inside of the bathroom 2 in advance before the user uses the bathroom 2. If the interior of the bathroom 2 is warmed in advance, it is possible to prevent a user's heat shock that may occur when the temperature is low, for example. Since the spray nozzle according to the embodiment hardly causes unevenness in the spraying of the fluid, it is possible to efficiently and evenly heat the inside of the bathroom 2 evenly. Further, the temperature control is not limited to heating but may be cooling.

Further, by using the injection nozzle according to the above-described embodiment for the injection nozzle that is located inside the space and injects the fluid toward the surface facing the space of the partition body that partitions the space,
Disinfecting the space-facing surface of the compartment,
・Mold-proofing of the surface of the compartment facing the space,
・The surface of the compartment facing the space is subjected to antibacterial treatment,
-Covering the space-facing surface of the compartment with a substance capable of fixing to the space-facing surface of the compartment; and-the temperature of the compartment-facing surface and the temperature of the interior of the space. Changing at least one of
It is possible to obtain an injection system that performs at least one of the following.

For example, if the space is a bathroom and the compartment includes a ceiling, floor, and interior walls, respectively, the injection system may be
Cleaning each of the ceiling, floor and interior walls,
Disinfecting each of the ceiling, floor, and interior walls,
-Mold-proof treatment for each of the ceiling, floor, and inner wall,
・Providing antibacterial treatment to each of the ceiling, floor, and inner wall,
Covering each of the ceiling, the floor and the inner wall with a substance capable of fixing on the space-facing surface of the compartment, and of the temperature of the ceiling, the temperature of the floor, the temperature of the inner wall and the temperature of the interior of the bathroom Changing at least one,
At least one of the above is executed.

Further, in the above-described embodiment, the example in which the ejection nozzle 16 or the like ejects the liquid has been described, but the ejection nozzle 16 is not limited to the one that ejects the liquid. For example, it is possible to inject gas. The jet nozzle 16 and the like can jet fluid such as liquid and gas.

Furthermore, the above-described embodiments are presented as examples and are not intended to limit the scope of the invention. For example, although the injection nozzles 16 are attached to the ceiling 5 in some of the above-described embodiments, the injection nozzles 16 may be attached to other than the ceiling 5, for example, to the inner wall 4. In this case, the injection nozzle mounting surface of the injection nozzle 16 becomes the inner wall 4. When the injection 4 nozzles are attached to the inner wall 4, the injection holes 31A are set so that the intervals between the arrival points on the injection nozzle mounting surface, that is, the inner wall 4, are equalized, and the injection holes 31A extend from the respective arrival points toward the nozzle body 30. Can be provided on the nozzle body 30.

Furthermore, the present invention can be implemented in various novel forms other than the above-mentioned several embodiments. Therefore, each of the several embodiments described above can be variously omitted, replaced, and modified without departing from the scope of the present invention. Such novel forms and modifications are included in the scope and gist of the present invention, and are also included in the scope of the invention described in the claims and the scope of equivalents of the invention described in the claims.

1: Cleaning system 2: Bathroom 3: Bathtub 4: Inner wall 5: Ceilings 6a to 6d: Corners 7: Floor 8: Shower 9: Faucet 10: Operation part 11: Water supply source 12: Branch part 14: Water supply passage 15: Control valve 16: injection nozzle (first embodiment)
16a: injection nozzle (second embodiment)
16 ma: injection nozzle (second embodiment: first modification)
16 mb: injection nozzle (second embodiment: second modification)
16 mc: injection nozzle (second embodiment: third modification)
16 md: injection nozzle (second embodiment: fourth modification)
16me: injection nozzle (second embodiment: fifth modification)
16 mf: injection nozzle (second embodiment: sixth modification)
16 mg: injection nozzle (second embodiment: seventh modified example)
16b: injection nozzle (third embodiment)
16bma: injection nozzle (third embodiment: first modified example)
16bmb: injection nozzle (third embodiment: second modification)
16r: injection nozzle (reference example)
22: Dryer 23: Control unit 30: Nozzle body (second embodiment)
30 ma: Nozzle body (second embodiment: first modified example)
30 mb: Nozzle body (second embodiment: second modified example)
30 mc: Nozzle body (second embodiment: third modified example)
30 md: Nozzle body (second embodiment: fourth modified example)
30me: Nozzle body (second embodiment: fifth modified example)
30 mf: Nozzle body (second embodiment: sixth modified example)
30 mg: Nozzle body (second embodiment: seventh modified example)
30b: Nozzle body (third embodiment)
30bma: Nozzle body (Third embodiment: first modified example)
30bmb: Nozzle body (Third embodiment: Second modification)
31, 31A, 31Af, 31An, 31B: injection hole 32: mounting portion 40: arrival point (ceiling)
40d: Arrival point (floor)
40e: Arrival point (inner wall: far side)
40f: Arrival point (inner wall: near side)
41: Water sprinkling line 42: Fluid reaching line 43: Water drop 50: Difficult to sprinkle area A: Ceiling side hemisphere (mounting surface side hemisphere)
B: Floor side hemisphere (opposing surface side hemisphere)
BC: Ceiling center C: Center Dd: Diagonal direction Dx: Long axis direction Dy: Short axis direction V5: Ceiling 5 side vertex V7: Floor 7 side vertex Z: First direction X: Second direction Y: Third direction Hxy: circular horizontal plane AR: arcs La1 to La3, Lb1 to Lb4: intervals (injection holes)
Lc, Ld, Le, Lf: Interval (reaching point)
SH1 to SH4: Cross-sectional area (injection hole)
SC1 to SC4: Area (ceiling) in the range partitioned by the fluid arrival line
SW1 to SW6: Area (inner wall) of the range partitioned by the fluid arrival line
θv, θh: Angle

Claims (10)

A jet nozzle that is located inside the space and that jets a fluid toward a surface of the partition body that partitions the space, the surface facing the space,
A rotatable nozzle body having a plurality of injection holes for ejecting the fluid,
The cross-sectional area of at least a part of the plurality of injection holes is
The fluids ejected from the plurality of ejection holes, each reaching point on the surface of the partition body facing the space, drawn on the surface of the partition body facing the space by the rotation of the nozzle body. An injection nozzle characterized by being set according to the area of the range partitioned by the arrival line. The spacing between the centers of at least some of the plurality of injection holes is
The injection nozzle according to claim 1, wherein the surface of the nozzle body is evenly spaced. A jet nozzle that is located inside the space and that jets a fluid toward a surface of the partition body that partitions the space, the surface facing the space,
A rotatable nozzle body having a plurality of injection holes for ejecting the fluid,
At least a part of the plurality of injection holes is provided in the nozzle body,
The jet nozzle is characterized in that the intervals of reaching points of the fluid jetted from the plurality of jet holes on the surface of the partition body facing the space are made uniform. At least a part of the plurality of injection holes is provided in the nozzle body,
A line of the fluid ejected from the plurality of ejection holes, which is set so that the intervals of respective arrival points on the surface of the partition body facing the space are equalized, and which are directed from the respective arrival points to the nozzle body. It is provided along with, The injection nozzle of Claim 1 characterized by the above-mentioned. The partition body has an injection nozzle mounting surface to which the nozzle body is mounted,
The nozzle body is a spherical nozzle body,
At least a part of the plurality of injection holes,
The injection nozzle according to any one of claims 1 to 4, wherein the injection nozzle is provided on a mounting surface side hemispherical portion of the spherical nozzle body located on the injection nozzle mounting surface side. At least a part of the plurality of injection holes,
In the spherical nozzle body, the surface of the spherical nozzle body passes through the apex of the spherical nozzle body on the side of the injection nozzle mounting surface and the apex of the spherical nozzle body on the side of the facing surface facing the ejection nozzle mounting surface. The injection nozzle according to claim 5, wherein the injection nozzle is arranged along a circular arc of one circle drawn in FIG. At least a part of the plurality of injection holes,
When the spherical nozzle body is rotated about an axis connecting the apex of the spherical nozzle body on the ejection nozzle mounting surface side and the apex of the spherical nozzle body on the opposite surface side facing the ejection nozzle mounting surface. The jet nozzle according to claim 5, wherein the jet nozzles are arranged so as to be offset from each other in the rotation direction. An injection system including an injection nozzle for injecting a fluid toward a surface of the partition body located inside the space and partitioning the space, the surface facing the space,
The said injection nozzle is the injection nozzle of any one of Claims 1-7, The injection system characterized by the above-mentioned. The injection system according to claim 8, wherein the space includes an inner wall having a rectangular tube shape or an inner wall having a cylindrical shape. The injection system according to claim 9, wherein the inner wall is provided between the ceiling and the floor.

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