JPH0441961Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a nozzle used in a chemical spraying device such as a boom sprayer.

[Prior Art] For example, the nozzle of a conventional chemical spraying device is
As shown in the figure, a plurality of nozzles b are formed at appropriate intervals in a spray pipe a that communicates with a chemical liquid tank (not shown) via a pressure feeding means (not shown), and these nozzles b The nozzle bodies c are respectively attached. A passage d whose one end communicates with the nozzle b is formed in the nozzle body c, a core e and a nozzle plate f are attached to the other end of the passage d by a cap g, and a passage d is connected to the nozzle plate f. One spray port h communicating with is formed approximately in the center. Note that i is a packing and j is a spacer.

[Problem to be solved by the invention] In general, it is necessary to adjust the amount of spraying for pest control depending on the type of crop and the growing state of the crop, but with the conventional nozzles, when adjusting the amount of spraying, it is necessary to The plate f must be replaced with a different spray nozzle h, and for example, in a boom sprayer, the number of nozzle plates f to be installed may exceed 50, which is extremely troublesome. .

[Means for Solving the Problems] This invention was made in view of the above-mentioned circumstances, and is intended for use in a nozzle of a chemical liquid spraying device in which a spray port is arranged in a spray pipe that communicates with a chemical liquid tank via a pressure feeding means. , a main body is attached to the nozzle, a passage having a proximal end communicating with the nozzle and a distal end branching into two is formed in the main body, and each of the branched passages is provided at the branching part of the passage. A switching means is provided in the form of approximately T-shaped communication passages that communicate with each other separately or simultaneously, and a spray nozzle is formed at the tip of each passage via a rotating member serving as a direction changing means in an arbitrary direction. This paper proposes a nozzle for a chemical spraying device.

[Embodiment] An embodiment of this invention will be described below based on the accompanying drawings.

Figure 1 is a side view of the nozzle of this invention, Figure 2 is a sectional view taken along the line A-A in Figure 1, and Figure 3 is a sectional view taken along line B-B in Figure 2. A spray pipe is connected to a chemical solution tank (not shown) via a pump (not shown) as a means, and a plurality of spray ports 2 are formed in the spray pipe 1 at appropriate intervals. Each of these nozzles 2 is fitted with a nozzle base member 4 in which a through hole 3 communicating with the nozzle 2 is formed.
A male threaded portion 5 is formed at the tip of the nozzle base member 4, and a cylindrical fitting 7 is removably attached to the male threaded portion 5 via a socket 6. A male threaded part 8 is formed at the tip of the fixture 7, and an O threaded part 8 is formed in the male threaded part 8.
Nozzle body 1 that can be divided into left and right parts via ring 9
0 is screw connected. The nozzle body 10 has a base end that communicates with the nozzle 2 via the fitting 7 and the through hole 3 of the nozzle base member 4, and a distal end that communicates with the branch portion 11.
A passage 12 is formed by branching into two.

Rotating members 13 and 14, which are direction changing means, are rotatably attached to the branched ends of the passage 12 of the nozzle body 10 through O-rings 15 and 16 in a water-tight manner. Through holes 17, 1 formed in members 13, 14
The proximal end portions of 8 are connected to the passages 12, respectively. The core 2 is inserted into the tips of the through holes 17 and 18 of these rotating members 13 and 14 via spacers 19 and 20.
1 and 22 are disposed, and nozzle plates 25 and 26 are disposed on the tip sides of the cores 21 and 22, each having spray ports 23 and 24 formed in the center thereof, and these spacers 19 and 20, 21, 22 and nozzle plate 2
5 and 26 are attached by caps 27 and 28, respectively. Note that 29 and 30 are nozzle plates 25 and 26.
The gaskets 31 and 32 that are attached in a water-tight manner are E-rings that prevent the rotating members 13 and 14 from falling off.

Further, a ball valve 34, which is a spherical switching means in which a substantially T-shaped passage 33 is formed, is interposed at the branching portion 11 of the passage 12 of the nozzle body 10 via a ball valve seat 35. The nozzle body 10 is formed with a communication hole 36 (shown in the third figure) that communicates with the outside from the branch portion 11, and the communication hole 36 has a rod 37 with one end protruding outward and an O-ring 38.
It is rotatably arranged in a water-tight manner via the The other end of the rod 37 is connected to the communication hole 36 of the ball valve 34.
It can be locked into a notch 34a formed on the side.
A lever 40 is fixed to the one end of the rod 37 with a nut 39. Note that 41 is a collar interposed between the communication hole 36 and the rod 37.

Since the nozzle according to this invention is as described above, the spray direction can be directed in any direction via the direction changing means 13 and 14 as shown in FIGS. 2 and 4, and furthermore, as shown in FIG. , Figures 6 and 7
As shown in the figure, by rotating the ball valve 34 by rotating the lever 40, the spray nozzle 2
The chemical solution can be sprayed from only one or both of 3 and 24.

[Effects of the invention] Since the nozzle of the chemical spraying device according to this invention is as described above, it has the following effects.

(1) By providing nozzle plates with different aperture diameters,
It is possible to respond continuously and easily to pest control actions in different fields by switching the lever.

(2) By spraying from both nozzles, it is possible to cope with irrigation operations that require a large amount of spray.

(3) Since it can be directed in any direction using the direction switching means, it is expected that the chemical solution will adhere well to the underside of the leaves.

[Brief explanation of the drawing]

Figure 1 is a side view of the nozzle of this invention, Figure 2 is a sectional view taken along the line A-A in Figure 1, Figure 3 is a sectional view taken along line B-B in Figure 2, and Figure 4 is a sectional view taken along line B-B in Figure 2. 5, 6 and 7 are schematic sectional views showing the operating state of the nozzle shown in FIG. The figure is a sectional view showing a conventional nozzle. In the figure, 1... spray pipe, 2... nozzle,
10... Nozzle body (main body), 11... Branch part,
12, 33... Passage, 13, 14... Rotating member (direction changing means), 23, 24... Spray port, 25,
26... Nozzle plate, 34... Ball valve (switching means), 40... Lever.

Claims (1)

[Scope of utility model registration request] In a nozzle of a chemical liquid spraying device, which has a nozzle disposed in a spray pipe that communicates with a chemical liquid tank via a pressure feeding means, a main body is attached to the nozzle, a base end communicates with the nozzle, and a distal end is bifurcated. A passage branching into two is formed in the main body, and a switching means is interposed in the branching portion of the passage to form a substantially T-shaped communication passage that communicates with each of the branched passages separately or simultaneously. A nozzle of a chemical liquid spraying device, in which a spray port is formed at the tip of each passage via a rotating member serving as a direction changing means in an arbitrary direction.