JPH09192554A - Joint provided with spraying nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint provided with a spraying nozzle with which formation of a marker to confirm a communicating position is not needed, and consequently spraying is carried out only by adjusting a rocking body in the spraying direction of a liquid to be sprayed. SOLUTION: A spray liquid introducing cylinder 2 whose one end is connected with a spray liquid supplying pipe 5 has a diaphragm part 23 having a prescribed number of through holes 23a in the peripheral part except parts near the center. Moreover, the cylinder 2 has almost a circular space 25 formed in the surrounding of a spherical body 32 of a rocking body 3 and between the diaphragm part 23 and a wall part 63 in the other end side of a joining cylinder 6 to be connected with the spray liquid-introducing cylinder 2. When the rocking body 3 is inclined at a prescribed angle against the spray liquid introducing cylinder 2 in arbitrary direction, the space 25 and a liquid flowing hole 33 formed along the center axis of the rocking body 3 are communicated with each other and a spray liquid is sprayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint with a spray nozzle arranged at the tip of a spraying device used for spraying a chemical liquid for preventing pests in greenhouse horticulture such as fruit trees and vegetables.

[0002]

2. Description of the Related Art A spraying device for chemicals or the like used in greenhouse horticulture supports a spraying liquid supply pipe connected to a supply source of chemicals or the like by a supporting member having a predetermined length, and this supporting member is arranged in a longitudinal direction of a greenhouse. Are arranged along a direction substantially orthogonal to, and are arranged so as to be able to reciprocate above the greenhouse.
Further, a plurality of branch pipes are vertically provided in a portion of the spray liquid supply pipe supported by the support member so as to correspond to the plurality of furrow passages. A plurality of joints with spray nozzles are provided at predetermined intervals so as to project in a direction substantially orthogonal to each other, and a chemical solution or the like is sprayed from the joints with spray nozzles to the plant on the ridge.

As a joint with such a spray nozzle, the joint disclosed in Japanese Utility Model Laid-Open No. 3-43358 shown in FIG. 3 has been known. The joint 100 with a spray nozzle includes a spray liquid introducing cylinder 102 connected to an appropriate portion of a spray liquid supplying pipe 101, and the spray liquid introducing cylinder 10 at one end side.
The spray liquid introducing cylinder 1 through the connecting cylinder 103 connected to
02, a swinging body 104 that is swingable with respect to the swinging body 02, and a spray nozzle 105 that is disposed at the tip of the swinging body 104.
Is configured.

[0004]

In the above-mentioned joint 100 with a spray nozzle, the spray liquid introducing cylinder 102 has a passage hole 102a through which a spray liquid such as a chemical liquid passes.
It is formed so as to penetrate along the central axis of 2. Further, the oscillating body 104 is formed so that the spray liquid passage hole 104 a opens at a position deviated from the center on the surface of the spherical body portion 104 b arranged in the connecting cylinder 103. Therefore, by rotating the oscillating body 104, even if the oscillating body 104 has the same inclination angle, the passage hole 102a of the spray liquid introducing cylinder 102 is formed.
And the spray liquid passage hole 104a of the oscillating body 104 can be communicated with each other, or the communication state can be blocked.

However, in order to disperse the spray liquid, the spray liquid passage hole 104 of the rocking member 104 is eventually obtained.
The portion of the surface a of the spherical portion 104b that is open needs to be positioned within the range of the packing 106 provided around the spray liquid outlet of the passage hole 102a of the spray liquid introducing cylinder 102. Therefore, it is necessary to provide some mark on the outer surface of the oscillating body 104 or the spray nozzle 105 in order to judge whether the oscillating body 104 is inclined at any communication position or not. , The operator swings 104
It is also necessary to adjust to the direction in which the sprayed liquid is to be ejected, and to rotate each time using this mark as a guide to match the communication position.

The present invention has been made in order to solve the above-mentioned problems, and it is not necessary to provide a mark for confirming the communication position, and therefore, only the work of aligning the oscillating body with the spraying direction of the spray liquid is sufficient. It is an object to provide a joint with a spray nozzle.

[0007]

In order to achieve the above-mentioned object, a joint with a spray nozzle according to the present invention has a spray liquid introducing cylinder whose one end is connected to a spray liquid supply pipe, and an end other than the spray liquid introducing cylinder. A connection cylinder connected to the end side and having an opening in the wall portion on the other end side, and a spherical portion provided on the rear end side with the tip side protruding from the opening, and the spray liquid introduction tube via the connection cylinder. In a joint with a spray nozzle having an oscillating body swingably connected with respect to the oscillating body and a spray nozzle provided on a tip end side of the oscillating body, the spray liquid introducing cylinder has a predetermined vicinity of a peripheral edge avoiding the vicinity of the center. A partition wall portion having a number of through holes is provided, and a substantially annular gap formed around the spherical body portion of the oscillator between the partition wall portion and the wall portion on the other end side of the connecting cylinder is formed. And tilting the oscillating body with respect to the spray liquid introducing cylinder in an arbitrary direction by a predetermined angle, A liquid passage holes formed along the center axis of the gap between the oscillator is characterized in that it communicates.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below in more detail based on an embodiment shown in the drawings. In the figure, 1
Is a joint with a spray nozzle according to the present embodiment, which is configured to have a spray liquid introducing cylinder 2, an oscillating body 3, a spray nozzle 4, and the like.

The spray liquid introducing cylinder 2 is formed in a substantially cylindrical shape,
One end 21 thereof is connected to an appropriate position of the spray liquid supply pipe 5 connected to a supply source of spray liquid such as a chemical liquid. It should be noted that the spray liquid supply pipe 5 here is usually not a main part supported above a greenhouse through a support member (not shown), but a branching and hung from the main part. Of course, it is not necessarily limited to this.

The spray liquid introducing cylinder 2 is provided with a partition wall 23 near the other end 22 and inside the spray liquid introducing cylinder 2 slightly closer to the one end 21 side than the other end 22. In addition, a predetermined number of through holes 23a are formed in the vicinity of the peripheral edge of the partition wall 23, avoiding the vicinity of the center thereof. In addition, the partition 2
A recess 23b is formed on the surface of the third end 22 on the side of the other end 22, and a small-diameter packing 24 is disposed in the recess 23b.

The oscillating body 3 is composed of a shaft portion 31 and a sphere portion 32 formed on the rear end side (spraying liquid introducing cylinder 2 side), and a liquid passage hole 33 penetrating straight along the central axis thereof. Is provided. The oscillating body 3 is swingably connected to the spray liquid introducing cylinder 2, but in the present embodiment, both are connected via a connecting cylinder 6. The connecting cylinder 6 has a diameter larger than that of the spray liquid introducing cylinder 2, and the female screw portion formed on the inner peripheral surface near the one end 61 has the other end 2 of the spray liquid introducing cylinder 2.
It is connected by being screwed with a male screw portion formed on the outer peripheral surface near 2. In addition, the inner peripheral surface is formed in a curved surface in the wall 63 on the side of the other end 62, and an opening 64 is opened. That is, the oscillating body 3 is connected to the inner peripheral surface of the opening 64 such that the spherical body portion 32 is held and is swingable in any direction. The connecting tube 6 is inserted through the opening on the one end 61 side through the tip 31a side of the shaft portion 31 of the rocking body 3,
As described above, since the female screw portion is screwed into the male screw portion of the spray liquid introducing cylinder 2, the spherical portion 32 of the rocking body 3 is included.
The diameter of the opening portion 64 is slightly smaller than the diameter of the spherical portion 32 on the outer surface side of the wall portion 63 so as not to fall off from the opening portion 64.

The oscillating body 3 is arranged so that the surface of the spherical body portion 32 comes into contact with the small-diameter packing 24.
Further, in order to secure liquid tightness with the opening 64 of the connecting tube 6, the packing is provided via a large-diameter packing 65 provided on the inner surface side of the wall 63 of the connecting tube 6. Therefore, between the partition wall portion 23 (small-diameter packing 24 in this embodiment) of the spray liquid introducing cylinder 2 and the wall portion 63 (large-diameter packing 65 in this embodiment) of the connecting cylinder 6, A gap 25 is formed around the spherical portion 32. As a result, the spray liquid ejected from the through hole 23a of the partition wall portion 23 of the spray liquid introducing cylinder 2 once enters the gap 25 formed around the spherical portion 32.

A flange portion 34 is provided on the tip side of the shaft portion 31 of the oscillating body 3, and the spray nozzle 4 is attached to the flange portion 34. In this embodiment, the spray nozzle 4 has a base portion 4 which is directly fitted and connected to the flange portion 34.
1 and a cap portion 42 having a pore 42a capable of ejecting the spray liquid and screwed and connected to the tip side of the base 41. However, the spray nozzle 4 is not limited to such a structure, and the cap portion 4
Various conventionally known types such as those having a plurality of pores in 2 can be used.

Since the joint 1 with a spray nozzle according to the present embodiment has the above-described structure, the spray liquid such as the chemical liquid that has passed through the spray liquid supply pipe 5 is sprayed as shown by the arrow in FIG. The liquid introducing cylinder 2 enters the inside through the opening on the one end 21 side. The spray liquid that has entered the spray liquid introducing cylinder 2 tries to escape to the opening on the side of the other end 22, but since the partition wall portion 23 is provided, the penetration liquid provided near the peripheral edge of the partition wall portion 23 is penetrated. It passes through the hole 23a and enters the gap 25 formed in an annular shape around the spherical portion 32 of the rocking body 3. At this time,
When the tilt angle of the oscillating body 3 is small as shown in FIG. 1,
That is, when the angle formed by the central axis of the spray liquid introducing cylinder 2 and the central axis of the oscillator 3 is small, the spherical portion 3 of the oscillator 3 is used.
Opening portion 33a of the liquid passage hole 33 opening on the surface of
Is located within a range surrounded by the small-diameter packing 24. As a result, the spray liquid that has entered the gap 25 cannot enter the liquid passage hole 33 of the oscillating body 3, and the spray of the spray liquid is blocked.

The oscillating body 3 is tilted in an arbitrary direction in which the spray liquid is sprayed by a predetermined angle or more, and the opening 33a of the liquid passage hole 33 opening on the surface of the spherical body portion 32 of the oscillating body 3 is filled with a small packing 24. When it is located outside of, the opening 33a communicates with the gap 25, as shown in FIG. as a result,
As shown by the arrow in FIG. 2, the spray liquid that has entered the gap 25 is jetted into the spray nozzle 4 through the liquid passage hole 33 of the rocking body 3, and the pores 42 of the spray nozzle 4 are further injected.
It is jetted out from a. Therefore, according to the present embodiment, when the rocking body 3 is in a substantially straight positional relationship with respect to the spray liquid introducing cylinder 2, the spray of the spray liquid is interrupted, and when in a positional relationship inclined by a predetermined angle or more, the spray liquid is sprayed. Liquid will be ejected. Therefore, when interrupting the spraying of the chemical liquid or the like, the operator only has to make the oscillating body 3 substantially straight with respect to the spray liquid introducing cylinder 2, and when spraying the chemical liquid or the like. In the above, it is only necessary to tilt the rocking body 3 in a desired spraying direction, and a mark or the like for externally determining the communication state is unnecessary.

By the way, according to the present embodiment, in spraying the spray liquid, it is necessary to incline the oscillating body 3 by a predetermined angle or more, so that the swing liquid 3 should be moved in a direction substantially straight with respect to the central axis of the spray liquid introducing cylinder 2. The spray liquid cannot be sprayed. However, a spray solution such as a chemical solution is usually sprayed on the back surface of a plant leaf for control. That is, it is usual to use the oscillating body 3 facing upward, and there is almost no need for spraying in a direction substantially straight with respect to the central axis of the spray liquid introducing cylinder 2, and the spray nozzle of this type of greenhouse spray device. The attached joint can sufficiently fulfill its function.

[0017]

According to the joint with a spray nozzle of the present invention,
The spray liquid can be jetted in a desired direction simply by inclining the oscillating body by a predetermined angle or more. Therefore, it is not necessary to provide a mark for indicating the jettable state on the outer surface of the spray nozzle, which contributes to simplification of the spraying work.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a connection cutoff state of a joint with a spray nozzle according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a communication state of a joint with a spray nozzle according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a conventional joint with a spray nozzle.

[Explanation of symbols]

 1 Fitting with spray nozzle 2 Spray liquid introduction tube 3 Oscillator 4 Spray nozzle

Claims (1)

[Claims] 1. A spraying liquid introducing cylinder having one end connected to a spraying liquid supply pipe, and a connection having one end connected to the other end side of the spraying liquid introducing pipe and having an opening in a wall portion on the other end side. A tube, an oscillating body having a tip end side projecting from the opening, and a sphere portion provided on the rear end side oscillatably connected to the spray liquid introducing tube through a connecting tube, and a tip end side of the oscillating body. In a joint with a spray nozzle having a spray nozzle provided, the spray liquid introducing cylinder is provided with a partition wall portion having a predetermined number of through holes in the vicinity of the peripheral edge avoiding the vicinity of the center, and is connected to the partition wall portion. There is a substantially annular gap formed around the spherical portion of the rocking body between the wall portion on the other end side of the cylinder, and the rocking body is inclined at a predetermined angle in any direction with respect to the spray liquid introducing cylinder. By doing so, the gap and the liquid passage hole formed along the central axis of the oscillator can communicate with each other. Spray nozzle attached fittings, characterized in.