JPH051329Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a liquid spraying device that is particularly suitable for use in termite extermination work and the like.

(Prior Art) For example, conventionally, organic chlorine-based chemicals with low toxicity to fish have been used to exterminate termites.

(Problems to be solved by the invention) However, organic chlorine-based chemicals have high residual toxicity, and if the mixed solution left after work is dumped at the site, the problem of environmental pollution will occur.

Recently, organic phosphorus-based chemicals with low residual toxicity have been used, but these chemicals are highly toxic to fish, and it is of course impossible to dump the surplus chemicals, and there is a risk of air pollution during transportation. It becomes a problem.

(Means for Solving the Problem) Therefore, the present invention provides a constant water level water tank, a water pump, a chemical solution pump, and a mixer inside the housing, and allows the drug stock solution and water to be supplied separately from the outside. It is an object of the present invention to provide an automatic chemical mixing and dispersing device that is easy to handle and can be operated safely.

(Example) Next, the present invention will be described in detail based on an example shown in the drawings.

A housing 1 having an appropriate shape receives water from the outside through a ball tap 3 or the like, and has a drain port 33.
A constant water level tank 2 is equipped with an overflow pipe 36 and always stores a certain amount of water, a water pump 4 with a large discharge amount driven by an electric motor (not shown), etc., and an adjustment knob 9 of a control circuit 8 are operated from the outside. IC motor 35 whose rotation speed is variable by
A chemical liquid pump 7 with a small discharge amount driven by, etc. is provided.

A water supply hose 5 and a surplus water hose 6 are disposed between the water tank 2 and the water pump 4, and a water discharge hose 10
is communicated with the mixer 18 via the check valve 16.

Next, a chemical suction hose 11 is connected to the suction side of the chemical pump 7, and a chemical discharge hose 12 connected to the discharge side is communicated with the mixer 18 via the check valve 17.

An appropriate mixer 18 may be used, but
In the illustrated example, the simplest T-shaped cheese is used, the chemical liquid discharge hose 12 from the chemical liquid pump 7 is connected to its central inlet, and the discharge hose 10 from the water supply pump 4 is connected to one of the direct current parts, The spray liquid is sent out as a mixture of water and a chemical stock solution at a desired magnification to the spray liquid discharge hose 19 connected to the other side. An opening/closing knob 20 is provided at the end of the spray liquid discharge hose 19.

Incidentally, an air bleeding hose 15 having an opening/closing knob 21 at its end is connected to the discharge side of the chemical pump 7.

Furthermore, from the discharge side of the chemical liquid pump 7, the safety valve 1
3, the chemical solution return hose 14 is communicated with the downstream side of the opening/closing knob 21 of the air release hose 15.

The spray liquid discharge hose 19, the air bleed hose 15, the chemical suction hose 11, and the ball tap 3
Hose connection fittings 23, 2 are attached to the ends of the
4, 25, and 34, and a spraying nozzle 27 connected to each from outside the housing 1,
It is provided so that an external air bleeding hose 28, an external chemical suction hose, and a water supply hose 31 connected to a water source such as a water faucet 32 can be connected.

In addition, a pressure gauge 22, an opening/closing knob 20, and an air release hose 1 are installed on the spray liquid discharge hose 19.
It is preferable that the opening/closing knob 21 interposed in the opening/closing knob 5 and the adjustment knob 9 of the chemical liquid pump 7 are also disposed on the surface of the housing 1 at a position where they can be easily seen and operated.

In the illustrated embodiment, the discharge amount of the chemical pump 7 is adjusted by changing the rotation speed of the IC motor 35, but a mechanical adjustment mechanism such as changing the stroke of the pump using a cam device may also be used. Of course.

When the spraying device according to the present invention is used for termite extermination, for example, the water tank 2 has a capacity of 5 to 10 liters, the water pump 4 has a discharge pressure of 10 kg/cm ² ,
Discharge rate is approximately 10l/min, and the discharge pressure of chemical pump 7 is 15
It is preferable that the spray nozzle 27 has a discharge rate of about 4 to 5 l/min at a pressure of about 5 Kg/cm ² and a discharge rate of ^about 30 to 300 cc/min.

(Operation/Effect) Since the automatic chemical mixing and dispersing device according to the present invention is constructed as described above, the housing 1 is brought to the work site, and each hose 26, 28, 29, 31 is connected to each hose connection fitting 23, 24, 25 and 34, the water is stored in the water tank 2, the stop 20 of the spray chemical discharge hose 19 is closed, the stop 21 of the air bleed hose 15 is opened, and the external air bleed hose 28 and the external chemical suction hose are connected to 29 into the drug stock solution container 30, and adjust the adjustment knob 9 to a position corresponding to the desired spray concentration.

In this state, both pumps 4 and 7 are operated, and when the drug stock solution comes out to the external air bleed hose 28, the hole 21 of the air bleed hose 15 is closed, and the hole 20 of the spray liquid discharge hose 19 is opened. By doing so, it is possible to spray a chemical solution of a desired concentration from the spraying nozzle 27.

At the end of the work, the external chemical solution suction hose 29 is pulled up from the drug stock solution container 30, and the spraying nozzle 27 continues to spray until the chemical solution no longer comes out from the external air venting hose 28, and then both pumps 4 and 7 are stopped. By closing both the pots 20 and 21 and tightening the faucet 32, the piping inside the device becomes clean, and the water remaining in the water tank 2 can be thrown away by opening the drain port 33. Further, the drug stock solution container 30 can be sealed and safely transported.

Therefore, according to the present invention, the drug stock solution and water remaining at the end of the work can be safely treated separately, and since the devices are integrated into one housing, handling is extremely easy. .

[Brief explanation of the drawing]

The figure is a schematic explanatory diagram of an embodiment of the present invention. 1... Housing, 2... Constant water level tank, 4... Water pump, 7... Chemical liquid pump, 18... Mixer.

Claims (1)

[Scope of utility model registration request] A constant water level water tank 2, a water pump 4, a chemical liquid pump 7 with variable discharge amount, and a mixer 18 connected to the discharge sides of these pumps 4 and 7 are housed in the housing 1. A chemical solution automatic mixing and dispersing device characterized in that pipes 26, 29, and 31 from a dispersing nozzle 27, a drug stock solution container 30, and a water source 32 are detachably provided from the outside.