JPS6150024B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an agricultural chemical sprayer, especially from several ridges.
This invention relates to an improvement in a sprayer for disinfecting crops with more than 10 rows of crops while a single worker is walking, using a long multi-head nozzle equipped with a spray nozzle corresponding to each row. It is.

Conventional multi-head spout pipes have nozzles screwed onto a round metal pipe at equal intervals, which requires a large amount of time and effort to manufacture, as the connecting cylinder for nozzle screwing must be attached to the round pipe by welding. In the case of a long nozzle that requires more than 10 nozzles, the tip side bends, so generally two nozzles are installed and both nozzles are attached to one long support pole, which reduces the weight of the nozzle. It has the disadvantage of being extremely large.

This invention solves the above-mentioned conventional drawbacks.
The purpose is to provide a multi-head nozzle nozzle that does not bend even without a support rod, is lightweight and easy to handle, has an extremely simple nozzle mounting structure, and can be provided at low cost. be.

The structure of the present invention will be explained below based on the attached drawings. In Fig. 1, A is a multi-head spout pipe in a pesticide sprayer, and this jet pipe has a hanging rod 1 near one end.
A handle 2 is provided at one end, and the suspension rod 1 is connected to the shoulder strap 3, and the jet pipe A is connected to the shoulder strap 3 by operating the handle 2.
is supported in a horizontal position. 4 is a pesticide pressure feeding hose.

The multi-head jet pipe A has a jet pipe main body 5 and a required number of nozzles 6.
It is made up of.

The jet tube main body 5 is a lightweight rectangular shaft made of pultrusion molded aluminum or reinforced plastic material, and has a circular shaft hole 7 formed therethrough, and communicates with the shaft center hole 7 in one wall of the jet pipe main body. Circular holes 8 are formed at required intervals, and a connecting cylinder portion 9 at the tail end of the nozzle 6 is caulked into the circular holes to prevent it from coming out.

A plug body 10 was also caulked into both ends of the jet tube main body 5, a pipe-shaped pin 11 was inserted to prevent it from coming out, and the connection part 12 of the pesticide pressure-feeding hose was also caulked into a circular hole formed on one side. However, the hose connection can also be directly caulked into the shaft center hole 7. 13 indicates the hose fitting. The illustrated nozzle 6 is an example of what is commonly called a curved nozzle.
The mist droplet injection port 14 is formed with a horizontal notch, and the chemical liquid ejected from the orifice 15 flows through the mist droplet injection port 14.
While contacting the back wall, it spreads along the top wall along the transition curved surface between the back wall and the top wall in a curtain-like manner. The mist nozzle 14 is directed downward in FIG.

This invention has the structure as described above, and the main body of this multi-head jet pipe is a rectangular shaft made of lightweight material, and a circular hole passes through the shaft center, so it is lightweight and does not bend. , therefore, a long type with more than 10 nozzles does not require a support rod1.
In addition, the nozzle connection hole is a simple circular hole into which the connecting tube at the tail end of the nozzle is swaged, making the nozzle installation structure extremely simple and significantly reducing manufacturing costs. It has excellent effects such as As the nozzle 6's caulking and retaining structure, the diameter of the connecting cylinder part 9 in the nozzle is made slightly larger than the diameter of the circular hole 8 in the jet pipe 5, and a small ridge 16 is formed on the outer peripheral surface of the rear end of the connecting cylinder part. By making it so, it can be completely prevented from coming off.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of a multi-head spout in a usage mode; FIG. 2 is an enlarged, partially cutaway bottom view of a portion of the multi-head jet pipe;
FIG. 3 is a perspective view of only a portion of the jet tube body same as above. A...Multi-headed jet pipe, 5... Main part of the jet pipe, 7... Axial hole, 8... Circular hole, 6... Nozzle, 9... Connection tube, 16... Small flange.

Claims (1)

[Scope of Claims] 1. Consists of a jet pipe main body and a required number of nozzles, the jet pipe main body is formed as a rectangular shaft made of lightweight material with a circular shaft center hole penetrating therethrough, and one wall of the jet pipe main body has the above-mentioned A multi-head spout pipe for an agrochemical sprayer, characterized in that circular holes communicating with an axial hole are formed at required intervals, and a connecting cylinder at the tail end of the nozzle is caulked into the circular holes to prevent it from coming off. 2. The nozzle caulking retainer is characterized in that the diameter of the connecting cylinder at the tail end of the nozzle is slightly larger than the diameter of the circular hole in the main body of the jet, and a small ridge is formed on the outer peripheral surface of the rear end of the connecting cylinder. A multi-head spout pipe for an agricultural chemical sprayer according to claim 1.