Adapter and liquid dispersing nozzle

Abstract

To provide an adapter which enables water to be discharged as shower water.SOLUTION: An adapter 50 includes a body 51. The body 51 has, at a center thereof, a first through hole 51a and a second through hole 51b communicating with the first through hole 51a, through which water flows. The second through hole 51b is provided closer to a liquid dispersing plate than the first through hole 51a. A first wall surface 511 defining the first through hole 51a is curved toward the liquid dispersing plate in a manner that a diameter of the first through hole 51a becomes smaller. A second wall surface 512 defining the second through hole 51b is curved toward the liquid dispersing plate in a manner that a diameter of the second through hole 51b becomes larger.SELECTED DRAWING: Figure 3D

Description

Technical Field

[0001] The present invention relates to an adapter that can be installed inside a liquid spraying nozzle. The present invention also relates to a liquid spraying nozzle provided with such an adapter.

Background Art

[0002] Liquid spraying nozzles are used in various applications such as watering a garden, washing a car, or spraying liquid medicine.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In conventional liquid spraying nozzles, when the water pressure is low, water may accumulate inside the nozzle and the water may not be discharged in a shower form. Also, in conventional liquid spraying nozzles, since the water droplets are large regardless of the magnitude of the water pressure, the soil may be washed away when watering the soil.

[0004] An object of the present invention is to provide an adapter that can discharge water as shower water containing nanobubbles. Another object of the present invention is to provide a liquid spraying nozzle provided with such an adapter.

Means for Solving the Problems

[0005] The present invention provides an invention in the following aspects. (Item 1) An adapter attachable to a liquid spraying nozzle having a liquid spraying plate capable of generating nanobubbles in water and having a plurality of shower holes, having a first through hole through which water flows and a second through hole communicating with the first through hole at the center, the second through hole being provided closer to the liquid spraying plate than the first through hole, a first wall surface defining the first through hole being curved or inclined such that the diameter of the first through hole decreases toward the liquid spraying plate, The second wall surface defining the second through-hole is curved or inclined such that the diameter of the second through-hole increases as it approaches the liquid dispersion plate. Adapter.

[0006] (Item 2) A liquid dispersion nozzle comprising the adapter according to Item 1.

Advantages of the Invention

[0007] With the adapter of the present invention, even when the water pressure is low, shower-like water can be discharged.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 3C

Figure 3D

Figure 3E

Figure 4A

Figure 4B

Modes for Carrying Out the Invention

[0009] The adapter 50 and the liquid dispersion nozzle 100 of the present invention will be described with reference to the drawings.

[0010] <1. Structure of the liquid dispersion nozzle and the adapter> The liquid spraying nozzle 100 is used for spraying liquids such as water or chemicals. Specifically, the liquid spraying nozzle 100 is used for spraying, for example, watering the garden, washing a car, or applying agricultural chemicals. Hereinafter, water will be taken as an example to explain the liquid sprayed by the liquid spraying nozzle 100, but the liquid to be sprayed is not limited to water.

[0011] As shown in FIGS. 1 and 2, the liquid spraying nozzle 100 includes a nozzle 10, a head 20, a liquid spraying plate 30, a fixing member 40, and an adapter 50.

[0012] A hose (not shown) can be connected to the nozzle 10. The head 20 is connected to the nozzle 10. The liquid spraying plate 30 is provided with a plurality of shower holes 30a. The liquid spraying plate 30 is attached to the head 20 by a fixing member 40. The adapter 50 is attached inside the head 20 and upstream of the liquid spraying plate 30. Water flows from the hose through the nozzle 10 into the head 20, passes through the adapter 50, and then is discharged as shower water from the shower holes 30a of the liquid spraying plate 30.

[0013] As shown in FIGS. 3A to 3E, the adapter 50 includes a circular main body 51. The adapter 50 is attached to the head 20 such that its outer peripheral surface is in close contact with the inner peripheral surface of the head 20. The central axis of the main body 51 substantially coincides with the central axis of the liquid spraying plate 30. The main body 51 has a first through hole 51a and a second through hole 51b communicating with the first through hole 51a at its center. Water flows in from the first through hole 51a, passes through the second through hole 51b, and flows toward the liquid spraying plate 30. Note that the adapter 50 does not have through holes through which water can flow other than the first through hole 51a and the second through hole 51b. Therefore, the water reaching the adapter 50 does not flow to the liquid spraying plate 30 through locations other than the first through hole 51a and the second through hole 51b.

[0014] The first through-hole 51a is circular in a cross-sectional view perpendicular to the central axis of the first through-hole 51a. As shown in FIG. 3D, the first wall surface 511 defining the first through-hole 51a is a curved surface that curves such that the diameter of the first through-hole 51a gradually decreases as it approaches the liquid dispersion plate 30. The second through-hole 51b is circular in a cross-sectional view perpendicular to the central axis of the second through-hole 51b. The second through-hole 51b is provided closer to the liquid dispersion plate 30 than the first through-hole 51a. The second wall surface 512 defining the second through-hole 51b is a curved surface that curves such that the diameter of the second through-hole 51b gradually increases as it approaches the liquid dispersion plate 30.

[0015] The first through-hole 51a and the second through-hole 51b constitute a Venturi mechanism. As shown in FIGS. 3D and 3E, the diameter of the outlet of the first through-hole 51a (the boundary portion between the first through-hole 51a and the second through-hole 51b) is smaller than the diameter of the inlet of the first through-hole 51a. Thus, a throttle portion is provided at the outlet of the first through-hole 51a. Therefore, when water passes through the outlet of the first through-hole 51a, according to Bernoulli's theorem, the bubbles in the water are subjected to a rapid pressure change and are refined. Thus, when water passes through the first through-hole 51a, nanobubbles are generated in the water.

[0016] As shown in FIG. 3E, the diameter d1 of the maximum diameter portion of the first through-hole 51a is smaller than the diameter d3 of the maximum diameter portion of the second through-hole 51b and larger than the diameter d4 of the minimum diameter portion of the second through-hole 51b. Also, the diameter d2 of the minimum diameter portion of the first through-hole 51a is the same as the diameter d4 of the minimum diameter portion of the second through-hole 51b. As an example, the diameter d1 of the first through-hole 51a is 11.5 mm, the diameter d2 of the first through-hole 51a is 10.5 mm, and the length L1 in the central axis direction of the first through-hole 51a is 1.5 mm. Also, the diameter d3 of the second through-hole 51b is 17.4 mm, the diameter d4 of the second through-hole 51b is 10.5 mm, and the length L2 in the central axis direction of the second through-hole 51b is 8.0 mm.

[0017] <2. Embodiment> As an example, a liquid spraying nozzle 100 with an adapter 50 (see Fig. 2) was used, and as a comparative example, a liquid spraying nozzle without an adapter 50 was used. The form of the water discharged from the liquid spraying plate 30 was visually confirmed. Also, using a Multisizer 4e manufactured by Beckman Coulter Life Sciences, the amount of nanobubbles contained in the water discharged from the liquid spraying plate 30 was compared.

[0018] When the static water pressure was 0.1 MPa, in both the example and the comparative example, it was visually confirmed that the water was discharged as shower water from the entire liquid spraying plate 30. However, the amount of nanobubbles contained in the shower water of the example was 1.5 times the amount of nanobubbles contained in the shower water of the comparative example. When the static water pressure was 0.06 MPa, as shown in Fig. 4A, with the liquid spraying nozzle 100 of the example, it was visually confirmed that the water was discharged as shower water from the entire liquid spraying plate 30. On the other hand, as shown in Fig. 4B, with the liquid spraying nozzle of the comparative example, the water was only discharged as shower water from only a part of the liquid spraying plate 30.

[0019] <3. Effects> In a conventional liquid spraying nozzle, when the water pressure was low, water would accumulate below the head, and shower water might be discharged only from a part of the liquid spraying plate. Since the adapter 50 of the present invention has a first through-hole 51a and a second through-hole 51b in the center thereof, water can be guided to the first through-hole 51a and the second through-hole 51b in the center and reach the liquid spraying plate 30. Thereby, it is possible to prevent water from accumulating below the head 20, and even when the water pressure is low, water can be discharged in a shower form from the entire liquid spraying plate 30.

[0020] By using the adapter 50, it is possible to discharge shower water with small droplets containing nanobubbles.

[0021] The outer diameter and the outer peripheral shape of the main body 51 of the adapter 50 do not affect the function of discharging water as shower water. Therefore, by appropriately changing the outer diameter and the outer peripheral shape of the main body 51, the adapter 50 can be adapted to heads 20 of various dimensions and shapes.

[0022] <4. Modification Example> The present invention is not limited to the above-described embodiments, and various modifications are possible without departing from the gist of the present invention. Hereinafter, modification examples of the present invention will be described. The modification examples described below can be applied to the above-described embodiments alone or in appropriate combination without departing from the gist of the present invention.

[0023] (4-1) The first wall surface 511 may be inclined instead of being curved.

[0024] (4-2) The second wall surface 512 may be inclined instead of being curved.

[0025] (4-3) The adapter 50 may be an integrally molded product, or may be configured by combining a plurality of molded products. The plurality of molded products may be inseparable from each other, or may be separable from each other. For example, a first main body having a first through hole 51a and a second main body having a second through hole 51b may be molded respectively, and the adapter 50 may be configured by connecting the first main body and the second main body inseparably. Alternatively, a first main body having a first through hole 51a and a second main body having a second through hole 51b may be molded respectively, and the adapter 50 may be configured by combining the first main body and the second main body separably.

Explanation of Reference Numerals

[0026] 100 Liquid Scattering Nozzle 30 Liquid Scattering Plate 30a Shower Hole 50 Adapter 51 Main Body 51a First Through Hole 511 First Wall Surface 51b Second Through Hole 512 Second Wall Surface

Claims

1. An adapter attachable to a liquid dispersion nozzle having a liquid dispersion plate capable of generating nanobubbles in water and having a plurality of shower holes, which has a first through hole through which water flows and a second through hole communicating with the first through hole at the center, wherein the second through hole is provided closer to the liquid dispersion plate than the first through hole, wherein a first wall surface defining the first through hole is curved or inclined such that the diameter of the first through hole decreases toward the liquid dispersion plate, and a second wall surface defining the second through hole is curved or inclined such that the diameter of the second through hole increases toward the liquid dispersion plate. Adapter.

2. A liquid dispersion nozzle comprising the adapter according to claim 1.

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