JPH03154663A - Nozzle capable of revolving injected fluid - Google Patents

Abstract

PURPOSE:To intermittently perform the injection to a definite place while changing the jet direction of a liquid by confining one interfering body, which interferes with the liquid going toward a fluid jet orifice from an empty chamber while revolved by a revolving stream, in the empty chamber. CONSTITUTION:In a nozzle 10 equipped with the fluid jet orifice 18 communicating with the outside of the nozzle 10 from the empty chamber 13 in the nozzle 10 and a guide hole 14 feeding a fluid in the empty chamber 13, the empty chamber 13 is formed into a rotary body shape and the fluid jet orifice 18 is formed on the center axis of the rotary body shape. The guide hole 14 is provided to the nozzle 10 in a direction generating the revolving stream along the inner peripheral wall of the empty chamber 13 in the fluid flowing in the empty chamber 13 from the guide hole 14 and one ball being an interfering body 19 which interferes with the fluid going toward the fluid jet orifice 18 from the empty chamber 13 while revolved by the revolving stream is confined in the empty chamber 13. As a result, the fluid injected from the fluid jet orifice of the nozzle can be subjected to conical revolving motion.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a nozzle that can swirl ejected fluid.

[Conventional technology]

Conventionally, for example, the following devices have been used to clean bottles and the like.

That is, as shown in FIG. 10, the bottle 1 is turned upside down with the opening 2 facing downward, and the cleaning liquid 4 is sprayed from the nozzle 3 toward the opening in a fan-shaped or conical shape.

This sprayed cleaning liquid enters the bottle 1 through the opening 2, and
Wash off the dirt 5 inside and remove it to the outside of the bottle 1. Note that the cleaning liquid 4 may be ejected from the nozzle 3 in a straight direction as shown in FIG. 11 in some cases.

However, with such a nozzle 3, since the cleaning liquid 4 is sprayed at a fixed position, a large amount of the cleaning liquid 4 is required to wash the entire inside of the bottle 1, and a long cleaning time is also required. Moreover, since no particular consideration is given to the discharge of the cleaning liquid after cleaning, as shown in FIG. 12, the exchange of the discharged cleaning liquid 6a after cleaning with the rising air 6b is not performed smoothly. This causes the inconvenience that it takes time to discharge the cleaning liquid.

There is a nozzle shown in Fig. 13 that solves such inconvenience (Special Publication No. 57-54390).
. This has a cavity 8 inside the nozzle 7, and a cleaning liquid jet hole 9 that is diagonally bored from the cavity 8 toward the outside of the nozzle 7, so that the cleaning liquid is directed toward the inside of the field in a circumferential direction. It is designed to eject in a direction that contains the ingredients. For this reason, the cleaning liquid after cleaning swirls and swirls within the facility, making it easy to discharge it outside the facility.

[Problem to be solved by the invention]

However, since the nozzle 7 shown in FIG. 13 also sprays the cleaning liquid at a fixed position, there are problems in that a large amount of cleaning liquid is required and a long time is required for cleaning.

The present invention aims to improve cleaning efficiency by varying the direction of the jet of cleaning liquid and intermittently jetting it to a fixed location, and also by varying the jet while the nozzle body remains fixed without moving. The purpose is to make it possible. A further object of the present invention is to provide a nozzle suitable not only for spraying cleaning liquid but also for watering plants.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a nozzle including a fluid ejection hole communicating from a cavity in the nozzle to the outside of the nozzle and a guide hole for feeding fluid into the cavity, wherein the cavity is formed in the shape of a rotating body, The fluid ejection hole is formed on the central axis of the rotating body, and the guide hole is oriented so as to cause a swirling flow along the inner circumferential wall of the cavity in the fluid flowing from there into the cavity. A configuration is adopted in which an interference body is confined within the cavity, which interferes with the fluid flowing from the cavity toward the fluid ejection hole while being rotated by the swirling flow.

[Effect]

When the fluid is forced into the cavity in the nozzle through the guide hole, it fills the cavity and is jetted out of the nozzle from the fluid ejection hole.

However, the guide hole is oriented so that the fluid passing through it pushes the interference body in the cavity and swirls it along the inner peripheral wall of the cavity, and the cavity is formed in the shape of a rotating body, so there is no interference. The body moves in a circular motion within the empty space.

For this reason, when the fluid that enters the cavity is directed toward the entrance of the fluid ejection hole, it receives interference from the interfering body, and the flow becomes a biased flow within the fluid ejection hole where the flow direction is biased toward the side where the interfering body is located. .

Moreover, this interference position changes periodically because the interference body constantly rotates.

Therefore, the fluid ejected from the fluid ejection hole forms a substantially conical body, and the central axis thereof fluctuates along the generatrix of the conical body.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Example 1 An example of a nozzle according to the present invention will be described based on FIGS. 1 to 3.

As shown in these figures, the nozzle 10 consists of a body part 11 and a nozzle cap part 12 that is detachably attached to the body part 11 with a screw.

The body portion 11 has an appearance in which a vertically oriented cylindrical portion 11a and a horizontally oriented other cylindrical portion 11b are connected so as to be in contact with each other, and there is a cylindrical cavity in the shape of a rotating body within the vertically oriented cylindrical portion 11a. 13 is formed coaxially, and the other cylindrical part 1
A guide hole 14 is formed in 1b to send a cleaning liquid, which is a fluid, into the cavity 13. The guide hole 14 is formed so that its diameter is slightly smaller than the height of the cylindrical cavity 13. Further, the guide hole 14 is located at the empty space 13.
The cleaning liquid flowing into the chamber 13 is oriented so as to generate a swirling flow along the inner circumferential wall of the cavity 13. That is, the central axis of the guide hole 14 is offset from the central axis of the cavity 13.

The nozzle cap part 12 includes a male thread 16 that engages with a female thread 15 formed at one end of the cylindrical cavity 13 of the body part 11, and when fixed to the body part 11, the nozzle cap part 12 is screwed together with the backing 17. The vacant room 13 is closed. Further, the nozzle cap portion 12 has a cleaning liquid ejection hole 1.
8, the ejection hole 18 is in the shape of a rotating body 13
is formed on the central axis of

A ball 19, which is an interference body, is confined within the cavity 13 and interferes with the cleaning fluid flowing from the cavity 13 toward the spout hole 18 while rotating due to the swirling flow of the cleaning fluid.

This ball 19 is formed to have a diameter that is slightly larger than the diameter of the guide hole 14 and the radius of the transverse circle of the cavity 13, but slightly smaller than the height of the cavity 13.

Note that while this ball 19 rotates along the inner circumferential wall of the cavity 13, it must not completely block the inlet 18a of the ejection hole 18.
A truncated conical projection 20 is provided around 8a.

Next, the operation when cleaning the inner surface of a bottle using the nozzle 10 as described above will be explained.

The nozzle 10 is installed at a predetermined location and the cleaning liquid guide hole 14 is installed.
Connect to a cleaning liquid supply pipe (not shown). Then, as shown in FIG. 3, the opening 2 of the bottle 1 is made to face the ejection hole 18 of the nozzle 10.

When the cleaning liquid is pumped into the pipe, the cleaning liquid passes through the nozzle 10
It passes through the guide hole 14, fills the cavity 13, and is ejected from the ejection hole 18 to the outside of the nozzle.

However, when the cleaning liquid entering the cavity 13 heads toward the inlet 18a of the ejection hole 18, it receives interference from the ball 19, resulting in a biased flow in which the flow direction is biased toward the side where the ball 19 is located. On the other hand, since the cleaning liquid that has entered the cavity 13 through the guide hole 14 rotates along the inner circumferential wall of the cavity 12, the ball 19 within the cavity 12 also rotates.

Therefore, the interference position changes periodically as the ball 19 rotates, and the central axis of the cleaning liquid jetted from the jetting hole 18 fluctuates while forming a conical generatrix.

That is, as shown in FIG. 3, when the ball 19 is in the position shown in FIG.
The flow of the cleaning liquid toward 8a is interfered with by the curved surface of the ball 19, and becomes a biased flow in which the flow rate is biased to the right side within the jet hole 18.

Therefore, the jet flow 4a of the cleaning liquid is
) to the right.

When the ball 19 comes to the position shown in Fig. 2 (2) (a) due to the swirling flow, the flow rate of the cleaning liquid in the jet hole 18 becomes as shown in Fig. 2 (2) (a).
Therefore, the jet stream 4b is deflected as shown in (2) and (c) in the same figure.

When the ball 19 comes to the position shown in FIG.
C is also deflected as shown in (3) (b) and (c) of the same figure.

Furthermore, when the ball 19 comes to the position shown in Figure (4) (a),
The flow rate is biased toward the lower side of (4) (a) in the same figure, and the jet flow 4d
The particles also fly unevenly within the bottle 1 as shown in FIG. 4(c).

Thus, the central axes of the cleaning liquid jets 4a, 4b, 4c, and 4d collide with the inner wall of the bottle while rotating inside the bottle 1 forming a conical generatrix.

Embodiment 2 As shown in FIGS. 4 and 5, the body portion 22 of the nozzle 21 includes a disk portion 22a and a joint portion 22b that is coaxially integrated with one surface of the disk portion 22a. and a cylindrical portion 22c that is coaxially integrated with the other surface of the disk portion 22a. And the joint part 22b
A fluid supply hole 23 is bored in the central axis of the cylindrical part 22c.
A female thread 24 is formed on the inner circumferential surface of. The female thread 2
4 is screwed into a male thread 26 of the nozzle plug portion 25.

The nozzle plug part 25 includes a cylindrical part 25a located on the same axis as the central axis of the supply hole 23, and a top plate part 25b, and a hollow chamber 27 and an ejection hole 34 are provided in the cylindrical part 25a on the same axis. There is. The male thread 26 is provided in the cylindrical portion 25a.

Note that while the injection hole 18 in the first embodiment is a straight hole, the injection hole 28 in this embodiment is a tapered hole whose inner peripheral surface has a necessary opening angle. .

A fluid guide plate 30 is sandwiched between the body portion 22 and the nozzle plug portion 25, and a flat cavity 31 is formed between the fluid guide plate 30 and the disk portion 22a. Note that the screws 24 between the body part 22 and the nozzle plug part 25.
An O-ring 29 is provided at the location where 26 is screwed together.

As shown in FIG. 6, the fluid guide plate 30 is disc-shaped, and has guide holes arranged at equal pitches on a circumference centered on the central axis of the disc and twisted with respect to the central axis. A plurality of diagonal holes 32, 32... are bored. As shown in FIG. 7, the guide holes of the fluid guide plate 35 are formed as oblique slit holes 36 cut from the outer periphery of the disc-shaped body toward the center instead of the oblique holes 32. It's also good.

As a result, the fluid supplied from the bottom of the nozzle 21 is
Flows into the flat chamber 31 from the supply hole 23, and further flows into the oblique hole 32.
However, since the axis of the oblique hole 32 is twisted with respect to the central axis of the disk portion 22a, a swirling flow occurs within the cavity 27, and the ball 33 flows into the cavity 27 as in the first embodiment.
While rotating, due to the interference, a directional jet flow is ejected from the jet hole 28.

Incidentally, the nozzle 10.21 can also be used for supplying water etc. to plants etc. 34, as shown in FIG.

Furthermore, instead of the balls 19.33, a cylindrical roller or, as shown in FIG. 8, a conical roller 37 can be installed.

〔Effect of the invention〕

Since the present invention is configured as described above, the fluid ejected from the fluid ejection hole of the nozzle can be caused to rotate in a conical shape. Therefore, by applying the cleaning liquid to the surface to be cleaned intermittently or periodically, it is possible to spread the cleaning liquid evenly over the entire surface of the surface to be cleaned, reducing the amount of fluid to be supplied for cleaning etc. , and the cleaning time can be shortened and the cleaning efficiency can be increased.

Furthermore, since the cleaning liquid that has entered the bottle or the like flows out while swirling, the outflow speed can be increased accordingly, and the cleaning time can be further shortened.

Furthermore, by using it for watering plants, etc., there is also an effect that efficient watering can be performed.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the nozzle according to the present invention, FIG. 1 is a vertical sectional view thereof, FIG. 2 is a horizontal sectional view,
Figure 3 is a diagram explaining the swirling state of the jet flow.
~ (4) shows the injection state when the balls are out of phase by 90 degrees, Figure (a) is a cross-sectional view similar to Figure 2, Figure (b) is the ball in the nozzle and the cleaning liquid in the field. A diagram showing the positional relationship between the nozzle and the jet stream with the nozzle as a vertical section and the bottle as a front view with the inside seen through. Figure (C) is a schematic plan view showing the rotating state of the spray position as seen from the bottom of the bottle. Figures 4 and 5
The figures show a second embodiment of the present invention, FIG. 4 is a plan view thereof, FIG. 5 is a vertical sectional view, FIG. 6 is a plan view of a fluid guide plate, and FIG. 7 is a fluid guide of another form. A plan view of the plate, Fig. 8 is a vertical sectional view of a nozzle loaded with a conical interference body, Fig. 9 is an explanatory diagram when used for watering plants, and Figs. 10 to 13 are conventional examples. Fig. 10 is a vertical cross-sectional view when bottles are washed with a conical jet flow, Fig. 11 is a vertical cross-sectional view when bottles are washed with a straight jet flow, and Fig. 12 is a vertical cross-sectional view when a bottle is washed with a straight jet flow. FIG. 13 is a vertical sectional view illustrating a case in which a bottle is washed with a screw nozzle. 1...bottle, 2...opening, 4...cleaning liquid, 6...
Cleaning liquid pool, 10... nozzle, 13... empty room,
14... Guide hole, 18... Spout hole, 19... Ball, 21... Nozzle, 27... Vacant chamber, 28... Spout hole, 30... Fluid guide plate, 32...・Guiding hole, 33・
...Ball, 34...Plant.

Claims (1)

[Claims] In a nozzle equipped with a fluid ejection hole that communicates from a cavity in the nozzle to the outside of the nozzle, and a guide hole that sends fluid into the cavity, the cavity is formed in the shape of a rotating body, and the fluid jet hole is aligned with the center axis of the rotary body shape. The guide hole is provided in such a direction as to cause a swirling flow along the inner circumferential wall of the cavity in the fluid flowing from the guide hole into the cavity, and the fluid flows into the cavity while being swirled by the swirling flow. A nozzle capable of swirling ejected fluid, characterized in that an interference body that interferes with the fluid flowing from the cavity toward the fluid ejecting hole is enclosed.