JP2000117161A - Small-sized foaming and sprinkling apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized spinkling apparatus reduced in the danger of the suction of a chemical soln., capable of confirming a sprinkling part at a glance and also reduced in the consumption of the chemical soln. SOLUTION: A chemical soln. tank 11 is provided to the upper part in a casing 10 and a pump 13, a compressor 17, the battery 25 of the motor driving them and a pressure control valve 15 are arranged in the casing 10 of the lower part of the tank 11. By this constitution, the chemical soln. in the tank 11 is sucked from a suction pipe 12 by a pump 13 to be sent to an emitting pipe 14 under pressure and mixed with air sent from a compressor 17 by an air sending pipe 18 to be foamed in a foaming pipe 20 and this foam is ejected from the nozzle 22 of the leading end of hose 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backpacking type or portable foaming apparatus.

[0002]

2. Description of the Related Art For example, when spraying a chemical solution on a small-scale farm or the like, a backpack type or portable type sprayer as shown in FIG. 2 is used. This sprayer is provided with a chemical solution tank 2 on an upper portion of a casing 1 having a size just enough to carry, and accommodates a pump 3, a battery 4, a pressure regulating valve 5 and the like driven by a DC motor in a lower portion of the tank 2. A nozzle 7 is attached to a hose 6 extending from the pump 3 to spray a chemical solution.

[0003]

In the above-mentioned sprayer, there is a problem that a chemical solution is atomized, so that there is a risk that an operator may inhale the chemical solution, and that a spraying location cannot be visually confirmed, resulting in dispersion of the spraying. In addition, there is a problem that a relatively large amount of the chemical solution is consumed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small-sized spraying device which has a low risk of inhaling a chemical solution, makes it easy to see the spraying portion at a glance, and consumes a small amount of the chemical solution.

[0005]

In order to solve the above problems, in the foaming and spraying apparatus of the present invention, a chemical solution tank is provided at an upper portion of a cylindrical casing, and a pump for sucking a chemical solution from the tank is provided in a lower space of the casing. Thus, a compressor for supplying air to the chemical solution for foaming, and a power supply for a drive motor of the pump and the compressor are arranged.

It is preferable that a pressure regulating valve is attached to a discharge line of the pump, and the pressure regulating valve and the tank are connected by a spill line.

[0007] A pressure switch for turning on and off the power supply may be arranged in an air supply line of the compressor.
Further, it is preferable to provide a check valve in the air supply line.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. As shown in the drawing, a liquid tank 11 is disposed in an upper part of the cylindrical casing 10, and a pump 13 connected to the tank 11 by a suction pipe 12 is disposed in a lower part of the casing 10 of the tank 11. . The pump 13 is preferably a gear pump driven by a DC motor. The discharge port of the pump 13 is connected to a water discharge pipe 14.
A spill pipe 16 returning to 1 is provided. An end of the water discharge pipe 14 is connected to an air supply pipe 18 for compressed air from a compressor 17 via a check valve 19.
A foaming tube 20 extends from an abutting portion of the hose and an air supply tube 18 and is connected to a hose 21. A nozzle 22 is attached to the end of the hose 21, and the operation of a lever 23 causes injection and stop of bubbles. A pressure switch 24 is provided downstream of the check valve 19 of the air supply pipe 18, and opens and closes a power supply circuit of the battery 25 in response to the operation of the lever 23. The pump 13 and the pressure regulating valve 1
5, compressor 17, check valve 19, pressure switch 2
4. The equipment and piping such as the battery 25
It is compactly stored in the lower space of the tank 11 inside. In the tank 11, a solution in which a foaming agent (surfactant), a stabilizer, and the like are mixed in a chemical solution is put, but only a solution of a surfactant or only a solution in which a surfactant and a stabilizer are mixed. You may. This is because even if a chemical solution is not particularly mixed, it can penetrate through the pest of the pest and make it difficult to breathe. Also, a backpack belt may be attached to the casing 10,
Casters can be attached.

Now, when the lever 23 of the nozzle 22 is pulled,
Since the pressure in the air supply pipe 18 decreases instantaneously, the pressure switch 24 detects this and closes the power supply circuit, the state is maintained, and the pump 13 and the compressor 17 operate. As a result, the liquid is discharged from the tank 11 to the water discharge pipe 14 through the suction pipe 12. At that time, the discharge pressure is about 2 kg / cm ² and the water discharge amount is about 1.5 l by the pressure regulating valve 15.
/ Min. On the other hand, air is pressure-fed from the compressor 17. The pressure is preferably about 1 kg / cm ² , and the air supply is preferably about 30 Nl / min. The liquid foams at a place where the liquid from the pump 13 and the air from the compressor 17 are mixed, and is ejected from the nozzle 22 through the hose 21 from the foam tube 20. The surplus liquid controlled by the pressure regulating valve 15 returns from the spill pipe 16 to the tank 11. Further, the discharge amount of the pump 13 and the air supply amount of the compressor 17 are not limited to the above. 1:15
The ratio may be in the range of up to 20.

When the lever 23 of the nozzle 22 is returned, the pressure in the air supply pipe 18 rises instantaneously, and the pressure switch 24 is opened to maintain that state, so that the pump 13 and the compressor 17 are stopped. I do. The nozzle 22
And a pressure switch 24 can be provided by providing a switch interlocking with the lever 23. The capacity of the tank 11 is usually about 10 to 20 l, preferably about 15 l.

[0011]

According to the present invention, as described above, equipment such as a pump and a compressor can be compactly stored and foamed in a small size baggage type or portable type casing. On a farm or the like, the spraying of air bubbles that has not been conventionally performed can be easily performed. Further, unlike the spraying of the medicine, there is little danger of the worker inhaling the chemical solution, and since the sprayed portion can be visually confirmed, the dispersion of the spray is eliminated. In addition, since the volume of the medicinal solution is 20 times or more, it can be spread more widely than spraying, and it adheres to plants for a long time to maintain the effect.

In addition, a surfactant alone has an effect of controlling pests without mixing a pesticide in a chemical solution, and is useful for preventing pollution by a pesticide.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a foaming and spraying apparatus of the present invention.

FIG. 2 is a longitudinal sectional view showing a conventional spray device.

[Description of Signs] 1 casing 2 tank 3 pump 4 battery 5 pressure regulating valve 6 hose 7 nozzle 10 casing 11 tank 12 suction pipe 13 pump 14 water discharge pipe 15 pressure regulating valve 16 spill pipe 17 compressor 18 air supply pipe 19 check valve 20 foaming pipe 21 Hose 22 Nozzle 23 Lever 24 Pressure switch 25 Battery

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B121 CB01 CB23 CB28 CB42 CB47 CB51 CB53 CB61 CB62 CB66 DA61 EA21 EA26 FA05 4F033 RA14 RD02 RD09 RE07

Claims (4)

[Claims] 1. A chemical solution tank is provided at an upper portion of a casing,
A small foaming and spraying device in which a pump for sucking a chemical solution from the tank, a compressor for supplying the chemical solution and foaming, and a power supply for a drive motor for the pump and the compressor are arranged in a lower space of the casing. 2. The small foaming and spraying apparatus according to claim 1, wherein a pressure regulating valve is attached to a discharge line of the pump, and the pressure regulating valve and the tank are connected by a spill line. 3. The small foaming and spraying apparatus according to claim 1, wherein a pressure switch for turning on and off the power supply is arranged in an air supply line of the compressor. 4. A check valve is provided in the air supply line.
A small-sized foam spraying apparatus according to item 1.