JPH0454842Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a jet hose structure for a power spreader that can spray powdered chemicals from above crops.

[Conventional technology]

Conventionally, in a power spreader, a long jet hose extending from the machine has a number of nozzles for ejecting powdered chemicals and air, each facing downward at predetermined intervals in the longitudinal direction. The sprayer is positioned above the crops and is moved in a direction perpendicular to the longitudinal direction of the jet hose to perform spraying work.

[Problem that the invention aims to solve] Therefore, when spraying to the roots of crops, the air volume must be increased, and when the air volume increases, the jet hose will float higher and the spraying effect will be reduced. If the amount of powdered chemicals is reduced, the amount of powdered chemicals transported by the air is not adequate, or if natural wind blows between the jet hose and the crop from the side, the powdered chemicals may be scattered. As a result, the spraying effect decreases. It had the following problems.

[Means for solving problems]

The present invention solves this problem and makes it possible to spray properly and reliably.Therefore, the blower hose, which only blows air, is aligned with the jet hose and is combined with the jet hose over its entire length. The blower hose extends and is provided on both sides of each outlet of the jet hose, with each outlet opening downward away from the outlet.

[Effect]

Therefore, since air is jetted downward from both sides of each spout of the jet hose, the jet hose can be appropriately floated while jetting an appropriate amount of medicine from each spout of the jet hose. In addition, the air ejected from both sides forms an air curtain, blocking the natural wind that tries to blow in from the sides and preventing powdered chemicals from scattering into the sky.
This means that it can reach the roots of the crops in a good manner.

〔Example〕

Next, the embodiment shown in the drawings will be described.

A is a backpack-type power sprayer, with a chemical tank 7 above the engine 5 and blower 6 installed side by side.
A metering chamber 8 is provided below the drug tank 7, which communicates with the lower part of the tank and into which air can be blown from the blower 6, and is configured similarly to the conventional structure. A partition plate 10 partitions the inside of the tip side of the blower 6 extending from the outer circumferential side of the blower 6 to form both air passages 9 that can blow air to each side.
a, 9b are formed, and a powder discharge pipe 11 extending from the metering chamber 8 is extended into one air passage 9a.

A bent pipe 13 with a bellows pipe 12 that can be handled is connected to one end thereof, and the other end of the bent pipe 13 is connected to the distal end side of the discharge pipe 9 for communication, and the inside of the bent pipe 13 is a partition plate that can be connected to the partition plate 10. Divided into two by 14 to create both air passages 1
3a, 13b, and the distal end 11a of the powder discharge pipe 11 is extended inward on the starting end side of one air passage 13a, and rotated by an outer lever 15 into the other air passage 13b. The metering valve 16 is mounted on a shaft.

The bellows pipe 12 connected to one end of the bent pipe 13 is partitioned by an inner wall so as to communicate with both the air passages 13a and 13b, and has connecting portions so as to connect the tip end to the jet hose 2 and the blower hose 3, respectively. Each hose is tightened and fixed with a band or the like.

That is, a large number of jet ports 1 are arranged at regular intervals on the lower surface.
The starting end side of the jet hose 2 formed with the above-mentioned jet hose 2 is connected to the connecting portion of the air passage 13a of the bellows pipe 12.

Further, on both sides of the jet hose 2, both blower hoses 3, 3 are formed by combining them so as to extend along the entire length thereof, and the starting ends of both the blower hoses are joined to form a single blower hose. The bellows pipe 12 is connected to the connecting portion of the air passage 13b.

On the lower surfaces of the two blower hoses 3, 3, which are on both sides of each jet nozzle 1 in the jet hose 2, there are jet nozzles 4, which are spaced apart on both sides of the jet nozzle 1 and are directed downward in the same way as the jet nozzle 1. .

Therefore, when carrying out pest control work, the fourth
As shown in the figure, a worker carrying this machine A on his back and a worker holding the end of the hose stand on both sides of the road, stretch the hose, and move in a direction perpendicular to the hose to carry out the work as before. In this state, powdered chemicals are ejected downward along with air from each spout 1 of the jet hose 2 as shown by arrow A, and both jet nozzles on both sides of each spout 1 are sprayed downward. Air will be ejected downward from 4 and 4 as shown by the arrow B. Therefore, even if an appropriate amount of air is discharged from nozzle 1, the air from both nozzles 4 and 4 will be The spraying causes the hose to rise to the surface appropriately, and both jet ports 4, 4
The air from each side creates an air curtain, so even if natural wind blows from the side as shown by arrow C, it will be blocked, and powdered chemicals will not be scattered into the sky like in the conventional type. It will reach the roots of the crops without needing to do anything.

Note that by adjusting the amount of air blown with the metering valve 16, the degree of floating of the hose and the degree of formation of the air curtain can be adjusted.

Fig. 5 and Fig. 6 show another embodiment, in which the blowing hose 3 is made into a single unit and is combined above the jet hose 2, and extends diagonally downward from both blowing ports 4, 4 located slightly above. It is constructed so that it can blow a jet of air.

7 and 8 show still another embodiment, in which a jet hose 2 is installed inside the blower hose 3.
It is constructed so that air can be emitted diagonally downward from both blowholes 4, 4.

Note that the configurations of the curved pipe, the bellows pipe, and the connection structure of the hose to the bellows pipe are not limited to the configurations of the embodiments. It's also good.

[Effect of idea]

In this way, the present invention makes it possible to blow air downward from both sides of each spout 1 that ejects powdered medicine, so that the air can be blown out in an appropriate amount with just the right amount of air. This means that even when the hose is injected from the side, the entire hose can be floated well, and air curtains can be created on both sides, so that natural wind blowing from the side can prevent the powder from forming. It is possible to prevent the chemicals from scattering into the air, and it also makes it possible to sufficiently spray the chemicals on the crops, making it possible to carry out pest control work efficiently and with good workability. have

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the main parts of an embodiment of the present invention.
Figure 2 shows part of the power spreader, Figure 3 shows the second
4 is an explanatory diagram of the working state, FIG. 5 is a sectional view of another embodiment, FIG. 6 is a side view thereof, and FIG. 7 is yet another embodiment. FIG. 8 is a side view thereof. 1... spout, 2... jet hose, 3...
Blower hose, A...this machine, 4...blow outlet.

Claims (1)

[Scope of utility model registration request] A power sprayer configured by extending from the machine A a long jet hose 2, each of which has a large number of jet ports 1 facing downward at predetermined intervals in the longitudinal direction, for spouting powdered chemicals and air, and only blows air. The blower hose 3 is installed along the jet hose 2 and extends from the machine A over its entire length, and the blower hose 3 on both sides of each spout 1 of the jet hose 2 includes:
A jet hose structure characterized in that each jet hose 4 is formed so as to open downward away from the jet port 1.