JPH0337723Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a nozzle device, for example, which has a handle integrally formed on the nozzle base and is used to spray a chemical onto trees or the like by holding the handle. It is.

[Conventional technology]

Conventional spray nozzle devices of this type have a fixed orientation in a straight or curved manner with respect to the handle, and the spray angle is adjusted by adjusting the swirl chamber using an adjustment knob.

[Problem that the invention attempts to solve]

Conventional nozzle devices such as those described above are heavy due to the complicated mechanism for adjusting the spray angle.
There was a problem with the high cost.

This invention was made to solve these problems, and aims to provide a convenient nozzle device that has a simple structure, is lightweight, inexpensive, and can change the spray angle and stop spraying using a switching knob. do.

[Means for solving problems]

The nozzle device according to this invention includes a ball that is inserted into the head of a nozzle base so as to create a space around the head and has a nozzle opening along the jetting direction of the nozzle base, and a head of the nozzle base. a switching knob that is provided externally and rotates the ball so that the nozzle can change direction on the nozzle direction line; and a switching knob that is attached to the head opening of the nozzle base and matches the nozzle on the straight line of injection. A cap having a center hole and an outer hole provided around the center hole, and a center hole that is provided directly or indirectly on the outlet side of the cap and that communicates with the center hole and the outer hole. a core having an outer circumferential groove; and a first seal body provided on the nozzle base so as to be in sliding contact with the outer circumferential surface of the ball and abutting around the inlet side of the nozzle when the nozzle is on a straight injection line. , a second seal body that is provided on the inlet side of the mouthpiece so as to be in sliding contact with the outer peripheral surface of the ball, and that comes into contact with the periphery of the outlet side of the nozzle when the nozzle is on the straight injection line. .

[Effect]

In this device, when the ball is set in the straight forward position using the switching knob, the jetting hole matches the center opening of the core through the center hole of the cap, and liquid is jetted straight forward, and when the ball is set in the spreading position using the switching knob, the liquid is jetted out. When the hole matches the outer circumferential groove of the core through the outer hole of the cap, the liquid is diffused and sprayed, and when the ball is set to the stop position using the switching knob, the ejection hole does not match either the center hole or the outer hole of the cap. Since the liquid is not sprayed, the spray angle can be changed and the spray stopped using a switching knob, and the mechanism is simple.

[Example of idea]

An embodiment of this invention will be described with reference to FIGS. 1 to 5. Figure 1 is a partially longitudinal side view, Figure 2 is a half cross-sectional side view of the core, and Figure 3 is a line drawn from Figure 1.
FIG. 4 is the same cross-sectional view as FIG. 3 showing the diffusion position, and FIG. 5 is the same cross-sectional view as FIG. 3 showing the stop position. In the figure, 1
1 is a nozzle base body on which a handle part 2 is integrally formed, which has a chamber 3 inside the head opening 1a, and has a base part 1.
b is connected to a liquid feeding drive unit (not shown).
A ball 4 is inserted into the chamber 3 so as to create a space around it, and has a straight ejection hole 4a.
Reference numeral 5 designates a switching knob for horizontally rotating the ball 4, which is rotatably mounted in the head vertical hole 1c of the nozzle base 1. Reference numeral 6 denotes a cap attached to the head opening 1a of the nozzle base 1, and has a center hole 6a that coincides with the ejection hole 4a on a straight injection line, and a plurality of outer holes 6b provided around the center hole 6a. . A first annular seal 7 is fitted into the nozzle base 1 so as to be in sliding contact with the outer peripheral surface of the ball 4, and comes into contact with the periphery of the inlet side of the nozzle 4a when the nozzle 4a is on the straight injection line. A second annular seal 8 is fitted on the inlet side of the mouthpiece 6 so as to be in sliding contact with the outer peripheral surface of the ball 4, and comes into contact with the periphery of the outlet side of the nozzle 4a when it is on the straight injection line. Reference numeral 9 denotes a double tube attached to the cap 6, with an inner tube 9a communicating with the center hole 6a of the cap 6, and an outer tube 9b communicating with the outer hole 6b of the cap 6. A core 10 is attached to the tip of the inner tube 9a of the double tube 9, and has a center opening 10a communicating with the inner tube 9a and a spiral groove 10b communicating with the outer tube 9b. Reference numeral 11 denotes a nozzle cylinder that holds the core 10 and is attached to the tip of the outer tube 9b of the double tube 9. 12
is the hood attached to the nozzle cylinder 11, 13 is the hood 1
The spout plate is fitted into the spout 2 and has a spout 13a. 14 is Patsukin.

Next, the operation will be explained. When the switching knob 5 is set to the straight forward position as shown in FIGS.
Therefore, the chemical liquid from the nozzle base 1 enters the inner tube 9a from the nozzle hole 4a through the center hole 6a, passes through the center opening 10a of the core 10, and enters the nozzle 1 of the nozzle plate 13.
The fuel is injected straight ahead from 3a. Furthermore, when the switching knob 5 is set to the diffusion position as shown in FIG. 4, the ejection hole 4a of the ball 4 matches the outer hole 6b of the nozzle 6, so that the chemical liquid from the nozzle base 1 flows from the ejection hole 4a to the outer hole. 6b and enters the outer tube 9b, and the core 10
The spray plate 1 is ejected spirally through the spiral groove 10b.
It is diffused and sprayed from the nozzle 13a of No.3. Furthermore, the fifth
When the switching knob 5 is set to the stop position as shown in the figure, the nozzle hole 4a of the ball 4 does not align with either the center hole 6a or the outer hole 6b of the nozzle 6, so that the chemical liquid from the nozzle base 1 flows through the nozzle hole 4a. It does not enter the tank and is not sprayed.

In the above embodiment, the cap 6 is shown in FIGS. 6 and 7.
As shown in the figure, a separate structure may be used in which a base body 6A and a base core 6B fitted therein are separated.

In the above embodiment, the core 10 is indirectly provided on the outlet side of the cap 6 through the double tube 9, but as shown in FIG. It can also be fitted.

[Effect of idea]

As described above, this invention does not have a special mechanism for adjusting the spray angle, so the structure is simple, lightweight and inexpensive, and the switch knob allows you to change the spray angle and stop the spray. The effect is that you can get something useful.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal side view showing an embodiment of the invention, FIG. 2 is a half-section side view of the core, and FIG. 3 is a sectional view taken along the line - in FIG. 1, showing the straight position. Figure 4 is the same cross-sectional view as Figure 3 showing the diffusion position;
The figure is the same sectional view as Figure 3 showing the stop position, Figure 6 is a half-section side view showing another embodiment of the cap, Figure 7 is a view of Figure 6 seen from the left, and Figure 8 is the invention. FIG. 3 is a partially cutaway side view showing another embodiment of the invention. In the figure, 1 is a nozzle base, 1a is a head opening,
4 is a ball, 4a is a spout hole, 5 is a switching knob, 6
is the base, 6a is the center hole, 6b is the outer hole, 7 is the first
8 is a second seal body, 9 is a double pipe,
9a is an inner tube, 9b is an outer tube, 10 is a core, 10a is a center opening, 10b is an outer circumferential groove, and 11 is a jet cylinder.
Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] (1) A ball that is inserted into the head of a nozzle base so as to create a space around it and has a nozzle opening along the jetting direction of the nozzle base, and the nozzle base a switching knob that is provided outside the head and rotates the ball so that the nozzle can change direction on the nozzle direction line; A cap having a center hole that coincides with the center hole and an outer hole provided around the center hole; a core having an outer circumferential groove communicating with the hole; and a first core provided on the nozzle base so as to be in sliding contact with the outer circumferential surface of the ball and abutting around the inlet side of the nozzle when the nozzle is on a straight injection line. a seal body, and a second seal body provided on the inlet side of the mouthpiece so as to be in sliding contact with the outer circumferential surface of the ball and abutting around the outlet side of the nozzle when the nozzle is on a straight injection line;
When the ball is set in the straight forward position using the switching knob, the jetting hole matches the center opening of the core through the center hole of the base and the liquid is injected straight, and the ball is set in the spreading position using the switching knob. Then, the ejection hole matches the outer circumferential groove of the core through the outer hole of the cap, and the liquid is diffused and sprayed.Further, when the ball is set to the stop position by the switching knob, the ejection hole passes through the center hole of the cap and A nozzle device characterized in that the nozzle does not match any of the outer holes and no liquid is sprayed. (2) The nozzle device according to claim 1, wherein the outer peripheral groove of the core is a spiral groove. (3) In the case where the core is indirectly attached to the mouthpiece by a double tube, the core is held in a nozzle tube, the outer tube of the double tube is connected to the nozzle tube, and the double tube is connected to the nozzle tube. Utility model registration claim 1 or 2 in which the inner pipe is communicated with the center opening of the core
The spout device described in Section 1.