JPH05317756A - Nozzle head and fluid spraying apparatus provided with nozzle head thereof - Google Patents

Abstract

PURPOSE:To provide a nozzle head whose pressure loss is small and which has extremely high spraying efficiency and can spray a fluid uniformly to a wide range. CONSTITUTION:A desired tilting angle theta including a parallel is provided to open faces 4a, 4a on the opposite to each other of a frame body 4A in a desired shape and nozzle open bodies N to spray a fluid respectively to the open faces 4a, 4a are set on the opposite to each other and a fluid sending inlet 4c is formed in a desired site of the frame body 4A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle head capable of efficiently and uniformly spraying gas or liquid over a wide range, and a fluid ejecting apparatus equipped with this nozzle head.

[0002]

2. Description of the Related Art A conventional nozzle head ejects a fluid by applying a high fluid pressure to a nozzle head formed of a single or a plurality of pores. There is also a nozzle having a rotary ejection function in which opposing nozzles are arranged in mutually opposite directions, that is, in a tongue shape, and a nozzle head is rotated by utilizing reaction force of fluid ejection.

Further, Japanese Patent Laid-Open No. 1-199663 discloses a plate-shaped nozzle based on the proposal of the present inventor. A conventional example will be described with reference to the sectional side view of the plate-shaped nozzle in FIG.

In FIG. 5, reference numeral 1 is a perforated base plate (hereinafter referred to as base plate), and 1a is a base plate 1 at equal intervals p.
Is a V-shaped locking groove formed in a spiral shape by means of a wire rod 2 having an isosceles triangular cross-section. The wire rod 2 is wound around the base plate 1 by engaging the locking groove 1a at its top end. The top end is fixedly held on the base plate 1 by an adhesive or welding.
As a result, a continuous spiral slit s having a desired size is formed between the wires 2 and 2, and the slit s forms a nozzle for ejecting a fluid. A frame plate 3 holds the wire rod 2 by sandwiching it with the base plate 1 and has an opening 3a.
Reference numeral 4 denotes a nozzle mounting member for mounting a nozzle opening body N composed of the base plate 1, the wire 2 and the frame plate 3 on the opening surface, and the nozzle ring N is mounted and held by the holding ring 5 on the nozzle mounting member 4. Has been done. A fluid delivery pipe 11 such as a tube or a pipe for delivering a fluid is connected to the end of the nozzle mounting member 4. 10 is a nozzle head.

In the above construction, the fluid fed from the fluid feed pipe 11 in the direction of arrow A in the figure is narrowed by the hypotenuse of the wire rod 2 having a triangular cross-section, and the flow velocity is accelerated, so that the fluid is discharged from the spiral slit s. The fluid is sprayed in the direction of the arrow B and is spread over the entire area of the nozzle opening body N over a wide range.

[0006]

Since the conventional example is constructed as described above, in the case of the former nozzle head, the flow of fluid is reduced by the pores to a high pressure and the flow velocity is increased to eject the fluid. Therefore, the injection efficiency is poor, the injection amount of the fluid is suppressed, and the injection range is also limited to one direction. Further, when the nozzle head is rotated, the number of the nozzle holes arranged in the shape of a toe is usually one, and the ejection amount is similarly suppressed, and the ejection is uneven. On the other hand, the plate-shaped nozzle provided with the nozzle opening body having the spiral slit is an improvement of the above-mentioned drawbacks of the conventional example, in which the suppression of the injection amount of the fluid is improved and the injection efficiency is extremely excellent. However, the injection direction is one direction as in the former example, and in each of the above examples, there is a problem that it is insufficient for application to an automatic injection device that automatically sprinkles and sprinkles. It was

The present invention has been made in order to solve the problems of the conventional example as described above, and the two fluid ejection surfaces are opposed to each other and can be ejected at a desired angle.
In addition, the nozzle head is provided with a nozzle head capable of uniformly ejecting a fluid in a wide range without extremely increasing the fluid pressure, and further capable of smoothly rotating the nozzle head by the reaction force of the ejected fluid, and the nozzle head. A fluid ejection device is provided.

[0008]

Therefore, the nozzle head according to the present invention and the fluid ejecting apparatus equipped with the nozzle head are desired to include mutually parallel opening faces of the frame body having a desired shape. Nozzle opening bodies having nozzles for injecting a fluid are provided so as to face each other with an inclination angle, and a fluid inlet is provided at a desired position of the frame body.
Rotating means for rotating the nozzle head body by the reaction force of the ejected fluid with the center of the fluid inlet as the axis of rotation is provided, and the nozzle opening body has a predetermined shape on a perforated base plate in which a fluid flow hole of a desired shape is formed. By engraving locking grooves at intervals, the top end of a wire having an isosceles triangular cross section is engaged with and fixed to the locking grooves by continuously forming slits having equal widths. It is intended to achieve the above purpose.

[0009]

In the nozzle head and the fluid ejecting apparatus having the nozzle head according to the present invention configured as described above, the fluid is ejected evenly in both directions from the nozzle openings which face each other and have a desired inclination angle. To be done. At this time, since the fluid is ejected from the continuous spiral long slits with equal width dimensions, the suppression of the ejection amount by the throttle of the nozzle is improved, and the fluid can be ejected efficiently evenly and in a wide range. Becomes

Further, by rotating the nozzle head by the rotating means, the fluid is uniformly and efficiently jetted over the entire surface around the nozzle head.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

(Structure) FIG. 1 is a structural front view and a partial sectional side view of a nozzle head according to an embodiment of the present invention, and FIG. The same or corresponding parts as those of the conventional example are designated by the same reference numerals.

In FIGS. 1 and 2, 1b is a long hole which is a fluid flow hole radially formed in the base plate 1, 4A is a frame of the nozzle head 10A, and the opening faces 4 facing each other.
The a and 4a are formed so that the width becomes narrower downward at an inclination angle θ with respect to the vertical plane. Nozzle opening bodies N facing each other are fitted and mounted on the opening surfaces 4a, 4a.
Positioned by the step 4b formed on the
It is attached and held by the frame body 4A. Reference numeral 7 is a fluid inlet pipe (hereinafter referred to as an inlet pipe) fixed to a fluid inlet 4c formed in the widest portion of the upper portion of the frame 4A by screwing or the like, and 8 is an inlet pipe 7 A pipe connection member (hereinafter referred to as a connection member) such as a union nut that holds and fixes the tip of the pipe and connects it to the fluid ejection device by a pipe (not shown).
Is.

(Operation) An operation will be described based on the above configuration.

First, when a desired pressurized fluid such as gas or liquid is introduced from the fluid inlet 4c, the fluid passes through the elongated hole 1b of the base plate 1 and the hypotenuse surface of the wire rod 2 having an isosceles triangular cross section. It is accelerated by being squeezed by, and is jetted at high speed from the entire surface of the nozzle opening body N on both sides through a continuous spiral slit s having an equal width dimension. The jetting amount and jetting range of the jetted fluid can be easily selected by adjusting the width dimension of the slit s.

Therefore, in this nozzle head, it is extremely easy to widen the ejection surface as compared with the conventional nozzle having the throttle hole structure, and the fluid is evenly ejected from the nozzle openings N on both sides in both directions of the nozzle head 10A. To be done. Further, clogging of the nozzle opening N due to dust or the like is unlikely to occur, and even if dust adheres to the slits s, it can be easily removed by washing with water or the like. It is possible to obtain a nozzle head suitable for automatically ejecting a fluid and a fluid ejecting apparatus including the nozzle head.

Although the fluid passage hole 1b of the base plate 1 is formed as an elongated hole in this embodiment, it is not limited to this and may be a round hole, a square hole, or a frame structure, and the frame body 4A.
The shape may be formed in a desired shape. The same applies to the hole shape of the frame plate 3. Further, the base plate is not limited to a flat plate shape, and may be formed in a conical shape or the like.

Next, FIGS. 3 and 4 show another embodiment of the nozzle head of the present invention. FIG. 3 is a partial sectional side view of a nozzle head of another embodiment, and FIG. 4 is a sectional view taken along line AA of the same. The same or corresponding parts as those in the above embodiment are designated by the same reference numerals.

3 and 4, 8A is a rotary joint which is an example of a rotating means R for rotatably connecting the nozzle head 10B to the fluid feed pipe 11, and 3A is attached to the outer surface of the nozzle opening body N. The frame plate 3A has a long hole 3a which is press-formed in a vertical direction with a desired width dimension in accordance with the shape of the base plate 1 and a desired angle in the longitudinal direction of the edge of the long hole 3a. The fins 3b are cut and raised so that the fins 3b are cut and raised in the opposite direction to the opening surfaces 4a,
4a are formed so that they are in opposite directions. θ ₁ is the inclination angle of the fin 3b, and the point O is the central axis of the inlet 4c.

The operation will be described based on the above configuration. When the fluid is ejected from the slit s, the long hole 3a of the frame plate 3A
The fluid is sprayed from the fins 3b at high speed. At this time, the injection direction of the fluid is changed along the inclination angle θ ₁ of the fin 3b, and the fin 3b is given a reaction force in the direction of arrow C in FIG. Since the fins 3b, 3b facing each other are formed so that their inclination angles θ ₁ are opposite to each other, a couple of forces with the central axis O as the center of rotation is generated, and this couple of forces causes the nozzle head 10B to rotate.
Is smoothly rotated in the C direction by the rotary joint 8A, that is, in the counterclockwise direction in this case. This nozzle head 10B
The rotation of the nozzle allows the ejected fluid to be ejected efficiently and evenly from the facing nozzle opening N over the entire peripheral surface of the nozzle head 10B.

As described above, by using the nozzle head according to the present invention, it is possible to obtain various ejecting apparatuses having excellent performance suitable for automatically ejecting various fluids.

In each of the above embodiments, the cross-sectional shape of the wire forming the nozzle is an isosceles triangular shape, but the present invention is not limited to this. A wire rod may be used.

The wound and wound wire rod may be fixedly secured to the perforated base plate by using an appropriate method such as an adhesive or spot welding.

[0024]

As described above, according to the present invention, the nozzle openings for ejecting fluid are arranged so as to face each other on the opening surfaces of the frame body having a desired shape. Since the nozzle openings are formed by continuously forming spiral slits with equal width dimensions, the pressure loss of fluid injection can be reduced efficiently, the injection range can be widened on both left and right sides, and the injection amount can be easily Adjustment can be selected.

Further, by rotating the nozzle head with the rotating means, it becomes possible to widen the spraying range of the fluid over the entire surface around the nozzle head and to spray the fluid evenly, and for spraying fluid for plant cultivation or It is possible to obtain a nozzle head that is suitable for automation, such as for blowing air into a fish tank and for mixing various fluids, and has an extremely excellent jetting performance, thereby significantly improving the performance of the fluid jetting device. You can

[Brief description of drawings]

FIG. 1 is a configuration front view and a partial cross-sectional side view of a nozzle head showing an embodiment of the present invention.

FIG. 2 is a cross-sectional side view of the constituent local portion of the nozzle head of the embodiment.

FIG. 3 is a cross-sectional side view of a local structure of a nozzle head according to another embodiment.

FIG. 4 is a cross-sectional view taken along the line AA of the nozzle head of another embodiment.

FIG. 5 is a sectional side view showing a configuration of a plate-shaped nozzle of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base plate 1a Locking groove 4A Frame body 4a Opening surface 4c Fluid inlet 10A, 10B Nozzle head N Nozzle opening body R Rotating means θ Inclination Note that the same reference numerals in the drawings indicate the same or corresponding portions.

Claims (3)

[Claims] 1. A nozzle opening body provided with nozzles for injecting fluid to each of the opening surfaces of the frame body having a desired shape, which are provided with desired inclination angles including parallel to each other, and are arranged to face each other. A nozzle head, which is provided with a fluid inlet at a desired location of the frame, and a fluid ejecting apparatus including the nozzle head. 2. The rotation axis is the center of the fluid inlet,
The nozzle head according to claim 1, further comprising a rotating means for rotating the nozzle head main body by a reaction force of the ejecting fluid, and a fluid ejecting apparatus including the nozzle head. 3. A nozzle opening body is provided with engraving engaging grooves at a predetermined interval on a perforated base plate having a fluid passage hole of a desired shape, and the engaging groove is formed of a wire having an isosceles triangular cross section. The nozzle head according to claim 1 or 2, wherein the top end portion is engaged and wound and fixed, and slits having equal width dimensions are continuously formed, and a fluid jet provided with the nozzle head. apparatus.