Sprinkling nozzle gun with nano-bubble water generating function

Abstract

To provide nano-bubble water generating function to a sprinkling nozzle gun for sprinkling tap water in shower state, jet state, mist state and so on by utilizing water pressure thereof.SOLUTION: A sprinkling nozzle gun 1 comprises: a hose plug 11 which is provided at an upstream end of a water flow channel in a body part 2; a sprinkling nozzle 5 which is provided at a downstream end of the flow channel in the body part 2, changes water into shower state, jet state, mist state, cone state and so on and sprinkles the same; a lever 12 which is provided outside the body part 2, and operates sprinkling from the sprinkling nozzle 5; and a valve body 8 and a valve mechanism 13 which block or open water in the flow channel in a body by operation of the lever 12. A small-sized and high-performance nano-bubble water generator 3, which reduces size of water bubbles contained in water passing through the flow channel in the body part 2, is built in the sprinkling nozzle gun. The nano-bubble water generator 3 is configured from a water entry surface 3-2 for entry of water that has each of a plurality of branch holes 6 which are separated from a central axis of a cylindrical body 3-1 by a prescribed distance and are concentrically formed, and a water exit surface 3-3 for exit of water, and the cylindrical body is located in a handle part 4 of the body part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sprinkler nozzle gun that is used mainly for washing, cleaning, gardening, etc., and that uses the water pressure of tap water to spray water in the form of a shower, jet, mist, cone, etc., and in particular to a technology for providing a sprinkler nozzle gun that has the function of generating nanobubble water at low cost. [Background technology]

[0002] Nanobubble water generally refers to water with fine bubbles that contain a large number of microbubbles with a diameter of approximately 100 μm or less, or nanobubbles with a diameter of approximately 50 to 500 nm.

[0003] For this reason, nanobubble water has a fine, smooth texture that penetrates into the pores and sweat glands of the hands and feet, etc., and removes dirt; it also effectively removes dirt that has gotten into the tiny gaps in the bricks and stone of outdoor walls and floors; and it efficiently washes away soil, dust, and dirt that has adhered to the leaves and branches of plants, and the water molecules effectively penetrate the leaf tissue.As a result, nanobubble water is now attracting attention not only for its traditional main use indoors, such as in washing machines and showers, but also for its use outdoors in washing and cleaning items, gardening, etc.

[0004] The cleaning effect of nanobubble water, due to its electrical action, is also attracting attention. The surface of nanobubbles is typically negatively charged, and the repulsive action of these charges prevents the bubbles from coalescing, allowing the charge to diffuse and float within the nanobubble water. In contrast, dirt such as oil and small foreign particles is typically positively charged. Therefore, the negatively charged water molecules in nanobubble water can easily penetrate and adsorb into the positively charged contaminants. This allows, for example, dirt such as dust and dirt adhering to the surface of plant leaves to be separated and washed away, and the water molecules can easily penetrate the tissues that make up the leaves and branches, promoting plant growth and making them less susceptible to pests and diseases.

[0005] Conventionally, methods for generating nanobubble water that exhibit such excellent effects have been known, such as the high-speed shear method, the pressurized collapse method, and the cavitation method. However, it has been difficult to incorporate any of these nanobubble generators into a sprinkler. Furthermore, if a conventional nanobubble generator is to be connected to a sprinkler from the outside, the weight and size of the nanobubble generator would hinder the operability and usability of the sprinkler. In particular, it was not practical to use a high-speed shear or pressurized collapse nanobubble generator in a household sprinkler.

[0006] As an example of generating nanobubble water from so-called dissolved air dissolved in water by the cavitation method, there is known a microbubble generator having a first nozzle on the water inlet side, which gradually decreases in cross-sectional area perpendicular to its central axis from the inlet to the outlet, a second nozzle on the water outlet side, which is arranged continuously via a communication passage that is connected to the outlet of the first nozzle and gradually increases in cross-sectional area perpendicular to the central axis from the inlet to the outlet, and a gap or side chamber that is open only to the communication passage (see, for example, Patent Document 1).

[0007] Another example of a shower head that produces microbubble water from dissolved air in water using the cavitation method is known, which has beauty and health benefits (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-136864 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-002196 Summary of the Invention [Problem to be solved by the invention]

[0009] However, the microbubble generator disclosed in Patent Document 1 may not be able to supply a sufficient amount of water for use because the water flow that has suddenly expanded in the communication passage with the side chamber is reduced in pressure by throttling it with the second nozzle. Therefore, the width of the side chamber in the axial flow direction must be adjusted depending on the water pressure at that time, making it impossible to incorporate it into a household sprinkler.

[0010] Furthermore, Patent Document 2 allows nanobubble water to be used at home when showering or doing laundry, but even though the microbubble generator used here is relatively small, it is difficult to use it in a water sprinkler, which is mainly used at home, considering its light weight, small size, and ease of operation.

[0011] Therefore, the present invention relates to a sprinkler nozzle gun that uses the water pressure of tap water to spray water in the form of a shower, jet, mist, cone, etc., and aims to provide a sprinkler nozzle gun at low cost that has excellent nanobubble water generation capabilities and is lighter, smaller, and more easily operable than conventional sprinkler nozzle guns. [Means for solving the problem]

[0012] In order to solve the above problems, in a first form, the present invention provides a sprinkler nozzle gun with a nanobubble water generating function, comprising: a main body; a water flow path formed inside the main body; a hose plug provided at the upstream end of the flow path in the main body; a sprinkler nozzle provided at the downstream end of the flow path in the main body for switching between spraying water in shower, jet, mist, cone, etc.; a lever provided on the outside of the main body for operating the sprinkler nozzle; a valve body and valve mechanism that close or open the water in the flow path formed in the main body by reciprocating operation of the lever; and a nanobubble water generator that micronizes water bubbles contained in water passing through the flow path in the main body, wherein the nanobubble water generator is disposed in a water channel in the main body.

[0013] Here, the nanobubble water generator housed within the main body of this watering nozzle gun is composed of a cylinder that fits closely to the inner surface of the water supply hose, a water inlet panel with multiple branch holes formed concentrically a predetermined distance from the central axis of the cylinder for tap water to flow out from the cylinder, and a water outlet panel with multiple branch holes for outletting tap water from the cylinder. The cylinder is placed inside the handle of the main body, and the inner surface wall of the cylinder between the water inlet panel and the water outlet panel has uneven sections formed by spiral cuts, so that water flowing in from the multiple branch holes in the water inlet panel comes into contact with and collides with the spiral uneven sections, causing turbulence within the cylinder, which breaks up the air bubbles in the tap water into fine particles and causes nanobubble water to flow out from the water outlet panel.

[0014] The number of branch holes provided on each of the above-mentioned water inlet and outlet faces is approximately 2 to 6, with the size being large when there are 2 branch holes and small when there are 6 branch holes. The standard number of branch holes provided on each of the water inlet and outlet faces is 4.

[0015] The multiple branch holes provided in the water inlet face are formed so that their central axes extending from the water inlet side to the water outlet side are inclined at a predetermined angle with respect to the central axis of the water inlet face, and the multiple branch holes provided in the water inlet face are arranged at equal intervals on the concentric circles, thereby generating nanobubble water with even higher efficiency.

[0016] In this way, in the nanobubble water generator that constitutes this water spray nozzle gun, the central positions of the branch holes in the water inlet face and the water outlet face may be aligned when viewed from the direction of water flow from the water inlet face to the water outlet face, but preferably they are positioned offset by a predetermined angle so that they do not match. This creates turbulence in the water that enters through the multiple holes in the water inlet face and passes through the cylinder, increasing the amount of water that collides with the water outlet face, making it possible to generate nanobubble water more efficiently.

[0017] The thickness of the water inlet surface is at least approximately 1 / 4 of the diameter of the cylinder, and is made of brass, resin, or stainless steel with a thickness of at least 5 millimeters.

[0018] Here, the water inlet and outlet surfaces are formed from brass, resin or stainless steel material with a thickness of at least 5 millimeters, and the cylindrical body is formed from brass, stainless steel or resin material.

[0019] In a second aspect, the present invention provides a hose connection plug for a sprinkler nozzle gun, the hose connection plug being connected to a sprinkler nozzle gun comprising a main body, a water flow path formed inside the main body, a hose plug provided at the upstream end of the flow path in the main body, a sprinkler nozzle provided at the downstream end of the flow path in the main body for switching between spraying water in shower, jet, mist, cone, etc., a lever provided on the outside of the main body for operating the sprinkler nozzle, and a valve body and valve mechanism for blocking or opening the water in the flow path formed within the main body by reciprocating operation of the lever, the hose connection plug being characterized in that it has disposed therein a nanobubble water generator for micronizing water bubbles contained in the water passing through the flow path.

[0020] As a result, in the second embodiment of the present invention, it is possible to give the watering nozzle gun the ability to generate nanobubble water without discarding the watering nozzle gun currently in use and replacing it with the watering nozzle gun of the first embodiment described above.

[0021] Here, the nanobubble water generator, like the nanobubble water generator built into the above-mentioned watering nozzle gun, is composed of a cylinder that fits closely to the inner surface of the water supply hose, a water inlet panel with four branch holes that are concentrically arranged a predetermined distance from the central axis of the cylinder for tap water to flow through, and a water outlet panel with four branch holes through which tap water flows out from the cylinder. The cylinder is placed inside the handle of the main body, and the inner surface wall of the cylinder between the water inlet panel and the water outlet panel has uneven sections formed by spiral cuts. Water flowing in from the four branch holes of the water inlet panel comes into contact with and collides with the spiral uneven sections, causing turbulence within the cylinder, which breaks up the air bubbles in the tap water into fine particles and causes nanobubble water to flow out from the water outlet panel. [Effects of the Invention]

[0022] The sprinkler nozzle gun of the present invention with a nanobubble water generating function is a sprinkler nozzle gun that uses the water pressure of tap water to spray water in the form of a shower, jet, mist, cone, etc., and has an excellent nanobubble water generating function. It also makes it possible to provide a sprinkler nozzle gun that is lighter, smaller, and easier to operate than conventional sprinkler nozzle guns at a low cost.

[0023] Here, the inner wall of the cylinder between the water inlet and outlet faces has uneven sections formed by spiral cuts, and water flowing in from the multiple branch holes in the water inlet face comes into contact with and collides with the spiral uneven sections, creating turbulent water flow within the cylinder, which breaks down the air bubbles contained in the tap water into fine particles and enables the generation of high-performance nanobubble water.

[0024] Furthermore, the hose connection plug for a watering nozzle gun according to the second embodiment of the present invention described above makes it possible to provide a watering nozzle gun currently in use with the function of generating nanobubble water without discarding the watering nozzle gun. [Brief explanation of the drawings]

[0025] [Figure 1]1 shows a first example for explaining the external appearance and internal structure of a sprinkler nozzle gun having a nanobubble water generating function according to the present invention. [Figure 2] 1 shows a second example of a watering nozzle gun of the present invention, illustrating its appearance and the location of the nanobubble water generator. [Figure 3] The figure shows the appearance of this watering nozzle gun and the hose connection plug that is connected to this watering nozzle gun. [Figure 4] Part (a) shows the appearance of a hose connection plug connected to a watering nozzle gun according to a second embodiment of the present invention, and part (b) shows the internal structure of the hose connection plug. [Figure 5] This figure shows the configuration (part 1) of a nanobubble water generator housed in the watering nozzle gun or the hose connection plug for the watering nozzle gun shown in Figure 4. Part (a) shows the internal configuration of the nanobubble water generator housed in the water supply hose in the watering nozzle gun or the hose connection plug. Part (b) shows the side of the water inlet face and the side of the water outlet face. The holes in the water inlet face (four in the example shown in Figure 5) and the holes in the water outlet face (four in the example shown in Figure 5) are aligned in the direction of water flow. Part (c) shows a perspective view of the AA' cross section of the nanobubble water generator shown in (b). A spiral cut is made on the inner surface of the cylinder. [Figure 6] This shows the configuration (part 2) of the nanobubble water generator housed in the water supply hose inside the water spray nozzle gun or hose connection plug. Part (a) shows the internal configuration of the nanobubble water generator when housed in the water supply hose inside the water spray nozzle gun or hose connection plug. Part (b) shows the side of the water inlet face and the side of the water outlet face. The holes in the water inlet face (four in the example shown in Figure 6) and the holes in the water outlet face (four in the example shown in Figure 6) are rotated approximately 90 degrees in the direction of water flow. Part (c) shows the BB' cross section of the nanobubble water generator shown in (b). A spiral cut is made on the inner surface of the cylinder. [Figure 7] This shows the watering nozzle gun connected to a hose via a hose connection plug. DETAILED DESCRIPTION OF THE INVENTION

[0026] Hereinafter, an example of an embodiment of the "watering nozzle gun having a nanobubble water generating function" according to the present invention (hereinafter simply referred to as "the watering nozzle gun") will be described with reference to the drawings.

[0027] FIG. 1 shows a first example for explaining the external appearance and internal structure of a sprinkler nozzle gun having a nanobubble water generating function according to the present invention.

[0028] As shown in Figure 1, this watering nozzle gun 1 comprises a main body 2, a water flow path formed inside the main body 2 (a water flow path formed inside the main body 2 from the hose plug 11 to the watering nozzle 5), a hose plug 11 provided at the upstream end of the flow path in the main body 2, a watering nozzle 5 provided at the downstream end of the main body 2 for switching the water spray to a shower, jet, mist, cone, etc., a lever 12 provided on the outside of the main body 2 for controlling the spraying of water from the watering nozzle 5, and a valve body 8 and valve mechanism 13 for blocking or opening the water in the flow path formed inside the main body 2 by reciprocating operation of the lever 12.

[0029] In the watering nozzle gun 1, a nanobubble water generator 3 that reduces the size of bubbles contained in water passing through the flow path within the main body 2 is disposed inside the main body 2. In the example shown in Figure 1, it is housed in a handle 4 within the main body 2. The handle 4 within the main body 2 is where a person grips the watering nozzle gun 1 with their hand, and is the part of the water path within the main body 2 that runs from the hose plug 11 in the watering nozzle gun 1 to the watering nozzle 5, where a relatively long straight section is formed.

[0030] A hose 30 (Fig. 7) connected to a tap (not shown) for city water may be directly connected to the hose plug 11, but, for example, as shown in Fig. 7, a standard hose connection port 22 can be attached to the end of the hose, and the hose connection port 22 can be simply inserted into the hose connection plug 11 of the watering nozzle gun 1 with a one-touch operation. This prevents water leakage between the watering nozzle gun 1 and the hose over a long period of time.

[0031] As shown in Figure 1, to spray nanobubble water from this watering nozzle gun 1, the lever 12 is pulled with a finger toward the handle 4. When the lever 12 is pulled toward the handle 4, the waterway valve mechanism 13 in the main body 2 operates the valve body 8, which opens and closes the waterway, in the opening direction, opening the waterway and allowing water to be sprayed from the watering nozzle 5.

[0032] Here, lever 12 of the watering nozzle gun is biased by lever return spring 9 in the direction returning lever 12, so that by releasing lever 12, the water passage in main body 2 is blocked and water spraying from watering nozzle 5 stops. Also, lever locking means (retaining ring) 10 is provided on the lower part of handle 4 on the lever 12 side, so water spraying from watering nozzle 5 can continue without continuing to pull lever 12 toward handle 4.

[0033] Figure 2 shows a second example of a sprinkler nozzle gun of the present invention, showing its appearance and the location of the nanobubble water generator. In Figure 2, the same reference numerals as in Figure 1 are used for the various components, and therefore the description of the first sprinkler nozzle gun in Figure 1 also applies to the sprinkler nozzle gun of this second example, and therefore a repeated description here will be omitted.

[0034] Incidentally, in the second example of the watering nozzle gun, similar to the first example of the watering nozzle gun, the nanobubble water generator 3 can be stored in the handle portion 4 inside the main body portion 2, but since the distance between the lever 12 of the watering nozzle gun 1 and the watering nozzle 5 is greater than in the case of the watering nozzle of the first example described above, it is also possible to install the nanobubble water generator 3 in the water channel between the lever 12 and the watering nozzle 5.

[0035] FIG. 3 shows the connection relationship between the watering nozzle gun 1 (appearance), a hose connection plug 20 connected to the watering nozzle gun 1, and a hose connection port 22 connected to the hose connection plug 20.

[0036] In the example shown in Figure 3, by inserting hose connection plug 20 into hose plug 11 of watering nozzle gun 1, it can be connected with one touch to connection port 21 of watering nozzle gun 1 without water leakage. Also, if hose 30 (Figure 7) connected to a tap water faucet has a standard hose connection port, it can be connected to hose connection plug 20 with one touch.

[0037] The watering nozzle gun 1 shown in Fig. 3 houses a nanobubble water generator 3 therein, as shown in Fig. 1 or 2. However, as will be described below in Fig. 4, the nanobubble generator 3 does not have to be housed in the watering nozzle gun 1, and may instead be housed in the hose connection plug 20.

[0038] FIG. 4 shows the appearance of a hose connection plug 20 connected to a watering nozzle gun 1 according to a second embodiment of the present invention in part (a), and the internal structure of the hose connection plug in part (b).

[0039] As shown in FIG. 4, the hose connection plug 20 has a connection port 21 and a hose connection port 22 (see FIG. 7) that are connected to the hose plug 11 of the watering nozzle gun 1, and the nanobubble water generator 3 is stored inside the hose connection plug 20.

[0040] As a result, the hose connection plug for a watering nozzle gun according to the second embodiment of the present invention makes it possible to give a watering nozzle gun the ability to generate nanobubble water without having to discard the watering nozzle gun that is currently in use.

[0041] Next, the nanobubble water generator housed in the watering nozzle gun 1 or the hose connection plug 20 will be described in detail.

[0042] FIG. 5 shows a first example of the configuration of the nanobubble water generator 3 housed in the sprinkler nozzle gun 1 or the hose connection plug 20. Here, (a) shows the internal configuration of the nanobubble water generator 3 housed in the sprinkler nozzle gun 1 or the hose connection plug 20, and (b) shows the side of the water inlet body 3-2 and the side of the water outlet body 3-3. In this first example of the nanobubble generator, multiple holes 6 (four in the example shown in FIG. 5) in the water inlet body 3-2 and multiple holes 7 (four in the example shown in FIG. 5) in the water outlet body 3-3 are aligned in the direction of water flow. (c) shows a perspective view of the AA′ cross section of the nanobubble water generator shown in (b). A spiral cut is made on the inner surface of the cylindrical body 3-1 of the nanobubble water generator 3. Here, the side of the water inlet face 3-2 and the water outlet face 3-3 are pressed into the water inlet end and water outlet end of the cylinder, and then welded or glued depending on the material, so that water leakage and separation do not occur even under high water pressure.

[0043] As shown in Figure 5(a), the nanobubble water generator 3 is composed of a cylinder 3-1 that is placed in close contact with the inner wall of the watering nozzle gun 1 or the hose connection plug 20, a water inlet body 3-2 that has branch holes 6 (6-1, 6-2, 6-3, 6-4) that are formed concentrically (four in the example shown in Figure 5) from the central axis of the cylinder 3-1 at a predetermined distance (a size corresponding to the diameter of the cylinder 3-1) for tap water to flow out, and a water outlet body 3-3 that has branch holes 7 (7-1, 7-2, 7-3, 7-4) that flow out the tap water from the cylinder 3-1 (four in the example shown in Figure 5).

[0044] Here, the cylindrical body 3-1 is inserted into the inner surface of the main body 2 (Figure 1) and fixed to the inner wall of the water spray nozzle gun 1 or the hose connection plug 20, and an uneven portion 3-4 is formed by spiral cuts on the inner wall of the cylindrical body 3-1 between the water inlet surface 3-2 and the water outlet surface 3-3.

[0045] The water flowing in from the branch holes 6 of the water inlet surface 3-2 (four in the example shown in Figure 5) comes into contact with and collides with the spiral uneven portion 3-4, causing turbulence within the cylinder 3-1, which efficiently breaks down the air bubbles in the tap water into small particles and causes nanobubble water to flow out of the water outlet surface 3-3.

[0046] In this way, the watering nozzle gun 1 or the hose connection plug 20 has a small and lightweight shape in which the built-in nanobubble water generator 3 is formed in the cylindrical body 3-1 (containing 3-2 and 3-3) that is in close contact with the inner wall of the watering nozzle gun 1 or the hose connection plug 20, and can effectively generate the same number of nano-sized fine bubbles as a conventional nanobubble water generator.

[0047] FIG. 6 shows a second example of a nanobubble water generator housed in the watering nozzle gun 1 or the hose connection plug 20. Part (a) shows the internal structure of the nanobubble water generator when housed in the watering nozzle gun 1 or the hose connection plug 20, and part (b) shows the side of the water inlet and outlet faces. Unlike the first example shown in Figure 2, this second example differs from the first example shown in Figure 2 in that the holes 7 (7-1, 7-2, 7-3, and 7-4) in the water outlet face 3-3 (four in the example shown in Figure 6) are rotated approximately 90 degrees in the direction of water flow relative to the holes 6 (6-1, 6-2, 6-3, and 6-4) in the water inlet face 3-2 (four in the example shown in Figure 6). Part (c) is the same as the first example shown in Figure 2, but shows the BB' cross section of the nanobubble water generator shown in (b). A spiral cut 3-4 is made on the inner surface of the cylinder 3-1.

[0048] Thus, in the second example shown in Figure 6, the branch holes 6 (four in the example shown in Figure 6) provided in the water inlet surface 3-2 and the branch holes 7 (four in the example shown in Figure 6) provided in the water outlet surface 3-3 have their central axes inclined by 90 degrees to the central axis of the water inlet surface. Therefore, the water that passes through the holes 6 (four in the example shown in Figure 6) of the water inlet surface 3-2 does not form a straight water flow through the water inlet holes 6 and water outlet holes within the cylinder 3-1, but forms a vortex. As a result, more water flows collide with the spiral notches in the cylinder 3-1, and nanobubble water can be generated more efficiently.

[0049] The water inlet and outlet faces are made of brass, resin or stainless steel material with a thickness of at least 5 millimeters, and the cylindrical body is made of brass, stainless steel or resin material.

[0050] Furthermore, the inner wall of the cylinder 3-1 between the water inlet surface 3-2 and the water outlet surface 3-3 has an uneven portion 3-4 formed by spiral cuts, and water flowing in from the branch holes 6 of the water inlet surface 3-2 (four in the example shown in Figure 6) comes into contact with and collides with the spiral uneven portion 3-4, generating turbulence in the water within the cylinder 3-1, which breaks down the air bubbles in the tap water into fine particles and enables the generation of high-performance nanobubble water.

[0051] FIG. 7 shows the watering nozzle gun 1 connected to a hose 30 via a hose connection plug 20 and a hose plug 11.

[0052] In FIG. 7, the nanobubble water generator 3 may be housed inside the sprinkler nozzle gun 1 as shown in FIG. 1 or 2, or the nanobubble generator 3 may not necessarily be housed inside the sprinkler nozzle gun 1 as described in FIG. 4, but may be housed inside the hose connection plug 20.

[0053] As described above, the watering nozzle gun 1 or the hose connection plug 20 connected to the watering nozzle gun 1 is a watering nozzle gun that uses the water pressure to spray tap water in the form of a shower, jet, mist, cone, etc., and has excellent nanobubble water generation capabilities. It also makes it possible to provide a watering nozzle gun that is lighter, smaller, and more maneuverable than conventional watering nozzle guns at a low cost.

[0054] The nanobubble water generator 3 used here has an inner wall of a cylinder between the water inlet and outlet faces, with unevenness created by spiral cuts. Water flowing in from multiple branch holes in the water inlet face comes into contact with and collides with the spiral unevenness, creating turbulent water flow within the cylinder. This breaks down the air bubbles contained in the tap water into fine particles, enabling the generation of high-performance nanobubble water.

[0055] By the way, with this watering nozzle gun or the hose connection plug connected to the watering nozzle gun, nanobubbles can be effectively generated by cavitation using the air contained in tap water supplied to ordinary households. When directly connected to the water supply, the general water pressure is 1.5 kgf / cm. 2 to 3kgf / cm 2 The lower limit is 2.0 to 4.0 kgf / cm (0.15 to 0.3 MPa), and this water pressure alone is enough to turn the air contained in tap water supplied to ordinary households into tap water containing fine bubbles produced by cavitation. 2 It is preferable that the pressure is supplied at a pressure of (0.2 to 0.39 MPa). [Explanation of symbols]

[0056] 1. A watering nozzle gun with nanobubble water generation function 2 nozzle gun body for watering 3 Nanobubble water generator 3-1 Cylinder that constitutes the nanobubble water generator 3-2 Water inlet body that constitutes the nanobubble water generator 3-3 Water surface that constitutes the nanobubble water generator 3-4 Spiral unevenness formed on the inner surface of the cylinder Handle of 4-nozzle watering gun 5. Watering nozzle 6 Branching holes provided on the water inlet face of the nanobubble water generator 7 Branch holes provided on the flood surface 8 Waterway valve body 9-piece watering nozzle gun lever return spring 10 Lever locking means 11 Hose plug 12 Watering nozzle gun lever 13 Waterway valve mechanism inside the main body of the watering nozzle gun 20 Hose connection plug for watering nozzle gun 21 Connection port for the hose connection plug with the watering nozzle gun 22 Hose connection port on hose connection plug

Claims

1. a main body; a water flow path formed inside the main body; a hose plug provided at an upstream end of the flow path in the main body; a sprinkler nozzle provided at a downstream end of the flow path in the main body for switching the sprinkler shape to a shower, a jet, a mist, a cone, or the like; a lever provided on the outside of the main body for operating the water spray from the water spray nozzle; a valve body and a valve mechanism that close or open a water flow path formed in the main body by reciprocating operation of the lever; a nanobubble water generator for miniaturizing water bubbles contained in water passing through the flow path in the main body, The nanobubble water generator is disposed in a water channel in the main body, which is a sprinkler nozzle gun having a nanobubble water generating function.

2. The nanobubble water generator comprises: a cylindrical body that is in close contact with the inner surface of the water supply hose; a water inlet face having a plurality of branch holes formed concentrically at a predetermined distance from the central axis of the cylindrical body for supplying tap water; and a water outlet body having a plurality of branch holes for flowing tap water out of the cylindrical body, the cylindrical body is disposed within the handle portion of the body; The inner wall of the cylindrical body between the water inlet body and the water outlet body is formed with uneven portions formed by spiral cuts, Water flowing in from the multiple branch holes of the water inlet body comes into contact with and collides with the spiral uneven portion, causing turbulence within the cylinder, which causes air bubbles in the tap water to be finely crushed, resulting in nanobubble water flowing out of the water outlet body.

2. The sprinkler nozzle gun having the nanobubble water generating function according to claim 1.

3. 3. A sprinkler nozzle gun with nanobubble water generating function as described in claim 2, wherein the central axes of the plurality of branch holes provided in the water inlet face, extending from the water inlet side to the water outlet side, are inclined at a predetermined angle with respect to the central axis of the water inlet face.

4. 4. The sprinkler nozzle gun having a nanobubble water generating function according to claim 2 or 3, wherein the plurality of branch holes provided in the water inlet face are provided at equal intervals on the concentric circle.

5. 5. The sprinkler nozzle gun having a nanobubble water generating function according to claim 4, wherein the thickness dimension of the water inlet face is at least approximately 1 / 4 of the diameter dimension of the cylinder.

6. 5. The sprinkler nozzle gun with nanobubble water generating function according to claim 4, wherein the central positions of the branch holes in the water inlet face and the water outlet face are arranged at a predetermined angle so as not to coincide when viewed from the direction of water flow from the water inlet face to the water outlet face.

7. The sprinkler nozzle gun with nanobubble water generating function described in claim 6, characterized in that the water inlet face and the water outlet face are formed from brass, resin, or stainless steel material with a thickness of at least 5 millimeters.

8. 8. The sprinkler nozzle gun having a nanobubble water generating function according to claim 7, wherein the cylindrical body is formed from a brass material, a stainless steel material, or a resin material.

9. a main body; a water flow path formed inside the main body; and a hose plug provided at an upstream end of the flow path in the main body. a sprinkler nozzle provided at a downstream end of the flow path in the main body for switching the sprinkler shape to a shower, a jet, a mist, a cone, or the like; a lever provided on the outside of the main body for operating the water spray from the water spray nozzle; a valve body and a valve mechanism that close or open a water flow path formed in the main body by reciprocating operation of the lever; A hose connection plug connected to a watering nozzle gun comprising: A hose connection plug for a watering nozzle gun, characterized by having a nanobubble water generator installed inside that reduces the size of bubbles contained in water passing through the flow path.

10. The nanobubble water generator comprises: a cylindrical body that is in close contact with the inner surface of the water supply hose; a water inlet face having four branch holes formed concentrically at a predetermined distance from the central axis of the cylinder for supplying tap water; and a water outlet body having four branch holes for flowing tap water out of the cylindrical body, the cylindrical body is disposed within the handle portion of the body; The inner wall of the cylindrical body between the water inlet body and the water outlet body is formed with uneven portions formed by spiral cuts, The water flowing in from the four branch holes of the water inlet body comes into contact with and collides with the spiral uneven portion, causing turbulence within the cylinder, which causes air bubbles in the tap water to be finely crushed, resulting in nanobubble water flowing out of the water outlet body.

10. The hose connection plug for a watering nozzle gun according to claim 9.

11. A hose connection plug for a watering nozzle gun as described in claim 10, wherein the four branch holes provided in the water inlet face have central axes extending from the water inlet side to the water outlet side that are inclined at a predetermined angle relative to the central axis of the water inlet face.

12. 12. A hose connection plug for a watering nozzle gun according to claim 11, wherein the plurality of branch holes provided in said water inlet faceplate are provided at equal intervals on said concentric circle.

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