JPH07213962A - Electromotive spraying device - Google Patents

Abstract

PURPOSE:To uniformly stir a chemical fluid and provide safety and easiness while preventing a harmful chemical fluid from sticking to hands or from being breathed in by providing one motor with both normal and reverse function; pumping up a chemical fluid and stirring the fluid. CONSTITUTION:This electromotive spraying device has a bottom-having cylindrical chemical fluid tank 1, an operational case 7 installed on the upper part of the chemical fluid tank 1, a motor 2 set in the operational case 7, and a pump 3 attached to an axle 8 of the motor 2. A reversing switch 6 of the motor 2 is additionally installed besides a driving switch 5 to operate the electromotive spraying device and the pumping work and the stirring work of the pump 3 are carried out by reversely rotating the motor 2 by the reversing switch 6. That is, after the chemical fluid and a diluting liquid such as water are poured quantitatively to the chemical tank 1 and the reversing switch 6 is turned to the reversing side, the motor starts reverse rotation, and the pump 3 sends air to the chemical tank 1 and stirs the contents of the chemical tank 1 in foaming state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric spraying machine for pumping and spraying a chemical solution from a chemical solution tank.

[0002]

2. Description of the Related Art As an electric spraying machine used for horticulture, a chemical solution in a chemical solution tank is pumped up by a pump and sent to a spray nozzle connected to the pump. It is known to be sprayed.

[0003] Normally, the chemical solution is put into the chemical solution tank with a fixed amount of water and a fixed amount of water, and the mixture is agitated by human means. It is known that it can be sprayed all over the place.

[0004]

The chemical solution must be agitated as much as possible with a stock solution and a diluting solution such as water, and must be mixed and then sprayed until the sprayed chemical solution has a gusset concentration and the spraying effect cannot be exhibited. There is. However, depending on the drug solution, the undiluted solution may be harmful if it is directly touched by the hand or the skin or if gas is inhaled, so stirring by human means is shunned.

Further, when the specific gravity of the chemical liquid is extremely lighter than that of water, the chemical liquid and water may be separated into two layers in the tank, and it may not be possible to uniformly mix them by stirring by human means. The advent of a non-hazardous and easy-mixing device is awaited.

[0006]

In order to solve the above problems, the present invention comprises a pump 3 driven by a motor 2 above a chemical liquid tank 1, and an electric motor equipped with a spray nozzle 4 connected to this pump 3. In the sprayer, a reversing switch 6 for the motor 2 is provided in addition to the operation switch 5 for operating the electric sprayer, and the reversing switch 6 rotates the motor 2 in the forward and reverse directions to perform the suction operation and the stirring operation of the pump 3. It is an electric sprayer that is designed to be used.

[0007]

In operation, the reversing switch 6 is operated after the chemical solution and the diluting solution such as water are put into the chemical solution tank 1 by a predetermined amount.
Is switched to the reverse rotation side, the motor 2 performs a reverse rotation operation and the pump 3 sends air into the chemical liquid tank 1 to stir the chemical liquid tank 1 in a foaming state. Next, when the reverse rotation switch 6 is switched to the forward rotation side and the operation switch 5 is turned on, the pump 3 pumps up the chemical solution and sends it to the spray nozzle 4, and sprays the chemical solution from the tip of the spray nozzle 4 to the object. .

[0008]

EXAMPLES Next, the structure will be described with reference to the drawings showing the examples. 1 is a cylindrical liquid medicine tank with a bottom, 7 is an operation case attached to the upper part of the liquid medicine tank 1, and 2 is provided in the operation case 7. The motor 3 is a pump attached to the shaft 8 of the motor 2, and the pump 3 is generally a gear pump. When the pump 3 rotates in the normal direction, it pumps up the chemical solution in the chemical solution tank 1 and sprays the chemical solution from a spray nozzle. On the other hand, if reversed, the spray nozzle 4
Air is sucked from the side, air is fed into the chemical liquid tank 1, and while the air is continuously fed, the chemical liquid tank 1 foams and agitates the chemical liquid.

Reference numeral 5 is an operation switch provided in the operation case 7, and when the operation switch 5 is turned on / off, the motor 2
Perform a stop operation. Reference numeral 6 is a reversing switch also provided in a proper position of the operation case 7. As shown in the circuit diagram of FIG. 2, if a three-terminal double-pole double-throw switch is used, only the reversing switch 6 can be used regardless of whether the operation switch is turned on or off. Since the motor 2 can be rotated in the reverse direction, the pump 3 can perform an air blowing operation into the chemical liquid tank 1.

That is, the neutral contacts a and b of the double-pole, double-throw switches 6a and 6b forming the reversing switch 6 are connected to the power source 9, and the reversing switch 6 is one switch 6a.
, And the positive contact e of the other switch 6b are connected to the terminal 2a of the motor 2, and the other terminal 2b of the motor 2 is connected to the positive contact b of the one switch 6a via the operation switch 5. It is connected to the.

Further, the other terminal 2b of the motor 2 is directly connected to the reverse contact f of the other switch 6b, and when the reverse switch 6 is switched to the reverse contact side, the motor 2 immediately reversely rotates to perform the stirring operation. To do. Further, when the reverse switch 6 is switched to the positive contact side, the motor 2 is normally rotated by the conduction of the operation switch 5, and the normal spraying operation is performed.

Reference numeral 1a denotes an opening of the upper edge of the chemical liquid tank 1 having an external thread, and 7a denotes a fitting projection provided on the bottom of the operation case 7 having an internal thread, the fitting projection 7a and the chemical solution tank. The liquid medicine tank 1 and the operation case 7 are integrally assembled by screwing the upper edge opening 1a of the first screw 1.

Reference numeral 3a designates a tank-side chemical liquid hose which hangs down into the chemical liquid tank 1 directly connected to the pump 3, and 4a designates a nozzle-side chemical liquid hose which connects the pump 3 and the spray nozzle 4, and when the motor 2 is normally rotated, When the chemical solution in the chemical solution tank 1 is pumped up and the chemical solution is jetted from the spray nozzle 4 and the motor 2 is reversed, air is sucked from the spray nozzle 4 and the chemical solution hose 4
Air is sent into the chemical liquid tank 1 through a.3a to stir the chemical liquid.

Reference numeral 10 is a liquid supply port of the liquid chemical tank 1, 11 is a cap of the liquid supply port 10, and 12 is a filter attached to the liquid supply port. Air blown into the liquid chemical tank 1 during the stirring operation causes the filter 12 to flow. When it is passed and discharged, the filter 12 has a function of suppressing the blowing of bubbles that try to flow out together with the air.

[0015]

According to the present invention having the above-mentioned constitution and operation,
By performing forward / reverse operation using one motor 2, it has both functions of pumping up the chemical solution in the chemical solution tank 1 and sending air into the chemical solution tank 1 to stir the chemical solution.
The stirring of the chemical liquid does not require any human means, and the stirring is performed uniformly, and it has safety and convenience that the harmful chemical liquid does not come into contact with the hand or inhale harmful gas. .

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a product of the present invention.

FIG. 2 is a circuit diagram showing an example of an electric circuit according to the present invention.

[Explanation of symbols]

 1 Chemical Solution Tank 2 Motor 3 Pump 4 Spray Nozzle 5 Operation Switch 6 Reverse Switch

Claims (1)

[Claims] 1. An electric sprayer equipped with a pump 3 driven by a motor 2 above a chemical liquid tank 1, and a spray nozzle 4 connected to this pump 3, wherein an operation switch 5 for operating the electric sprayer is provided. An electric sprayer in which a reverse rotation switch 6 for the motor 2 is additionally provided, and the reverse rotation switch 6 rotates the motor 2 forward and backward to perform the suction operation and the stirring operation of the pump 3.