JPH019648Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a simple sprayer used for home gardening and the like.

[Background technology]

Conventionally, this type of sprayer is generally equipped with only a single tank, and when exterminating pests, etc., a commercially available chemical solution is mixed with water in the water tank, diluted appropriately, and then sprayed.

However, it is rare that all of the liquid mixture in the tank is consumed, and the chemical liquid used may be different each time. In such a case, in the past, the unused mixed liquid in the tank had to be discarded one by one, and the tank had to be cleaned, which was troublesome, uneconomical, and dangerous.

[Purpose of the invention] In view of the above, this invention provides a tank for the chemical liquid in addition to the water tank so that the water and the chemical liquid can be used without having to be mixed together before spraying, thereby ensuring safe management. The purpose is to make it easy to use and to make it easy to change the concentration of the chemical solution the next time it is used.

[Summary of the idea]

In order to achieve the above objectives, this invention outlines the following:
When the water in the water tank is sucked up by the pump and ejected from the jet nozzle, the chemical solution in the chemical solution tank is inhaled with the flow rate adjusted in the middle of the water supply pipe.
This liquid mixture is sprayed from a jet nozzle. Next, the details will be explained based on the drawings.

〔Example〕

1 to 3 show a first embodiment of the present invention. 1 and 2, this sprayer has a plastic upper case 2 with a handle 1 integrally formed on the upper end, and a plastic case 2 that is removably connected to the lower part of the upper case 2 via a clamp fitting 3. It has a water tank 4 and a jet nozzle 7 connected via a hose to a discharge port 5 provided in a part of the upper case 2, and the discharge port 5 and the water tank 4 are connected by a water supply pipe 8. ing.

Inside the upper case 2, a pump 9, a motor 10 that drives the pump, and a battery (not shown) that is the power source for the motor 10 are housed. Power switch 1
When 1 is operated, the pump 9 is driven and the water tank 4 is
The water inside is sucked up and discharged to the spout nozzle 7 through the water supply pipe 8.

In the sprayer having such a structure, the present invention separately includes a chemical liquid tank 12, connects this chemical liquid tank 12 and the middle part of the water supply pipe 8 with a chemical liquid supply pipe 13, and also connects the chemical liquid tank 12 and the middle part of the water supply pipe 8 with a flow rate in the middle of the chemical liquid supply pipe 13. A control valve 14 is provided.

The chemical tank 12 is removably housed in a recess 15 formed in a part of the upper part 4a of the water tank 4.

As the chemical liquid tank 12, the chemical liquid container at the time of purchase may be used as is, or a dedicated tank may be prepared.

The chemical liquid supply pipe line 13 consists of a main pipe 16 that is removably connected to the chemical liquid tank 12, and a plurality of branch pipes 17 of different diameters that are connected to the water supply pipe line 8, and each branch pipe 17 has an open end 17a. is water supply pipe 8
All of the opening ends 17 are plunged into the constricted part 8a with the same amount of plunge, and each opening end 17 has a narrowed inner diameter.
The end face of a is parallel to the flow of water in the water supply pipe 8.

Each branch pipe 17 and the main pipe 16 are connected via a flow rate control valve 14, and this flow rate control valve 14 continues the communication between each branch pipe 17 and the main pipe 16 individually. The continued operation is performed using the same number of buttons 20 as the number of branch pipes 17 arranged in parallel on the operation panel 19 on the outer surface of the upper case 2. Although not shown in the drawings, the water tank 4 and the chemical solution tank 12 are each provided with an inlet, an air vent hole, an outlet, and the like at appropriate locations.

When using this, first, the chemical liquid tank 12 containing the intended chemical liquid is inserted into the recess 15 of the water tank 4.
In preparation for this, the main pipe 16 of the chemical liquid supply conduit 13 is inserted into the chemical liquid tank 12. Next, when the pump 9 is driven, the water in the water tank 4 is sucked up and flows through the water supply pipe 8, and the chemical liquid in the chemical liquid tank 12 is absorbed by the action of the water flow when it passes through the constricted part 8a of the pipe line 8. is smoothly sucked up, flows into the water supply pipe 8 from the open end 17a of the branch pipe 17 of the chemical solution supply pipe 13, mixes with water, and is ejected from the ejection nozzle 7 in the form of mist. In order to bring the chemical solution to a predetermined concentration at this time, the flow rate of the chemical solution can be adjusted by selectively operating each button 20 via the flow rate control valve 14.

If you use another chemical solution, please use the chemical solution tank 1.
All you have to do is replace 2.

[Modified example]

Although the entire illustrated example is as described above, the present invention is not limited thereto, and the water supply pipe 8 as shown in FIG.
Each branch pipe 1 of the chemical solution supply pipe 13 facing the constricted part 8a of
The opening end 17a of No. 7 is directed toward the downstream side of the water flow and is tapered to increase the opening area. In addition, the arrangement of the opening end 17a can be changed in various ways.

[Effect of idea]

As explained above, the sprayer according to the present invention is
A chemical liquid tank 12 is provided separately from the water tank 4, and the chemical liquid in the chemical liquid tank 12 is connected to a branch pipe 1 in the middle of a water supply pipe 8 that communicates the water tank 4 and the jet nozzle 7.
7, it is possible to save the trouble of discarding the remaining liquid and cleaning the inside of the water tank 4 when changing the drug type, and also the trouble of mixing the drug solution and water, making it safe and easy to handle. .

In particular, the branch pipes 17 that communicate between the chemical tank 12 and the water supply pipe 8 are made of a plurality of pipes with different diameters, and each branch pipe 17 is independently and individually controlled to open and close using the flow rate control valve 14. Since it is designed to be adjustable, the types of drug solution concentrations are not limited to the number of branch pipes 17, but can be obtained by opening and closing a plurality of branch pipes 17 in arbitrary combinations. As the number of branch pipes 17 increases, the types of chemical concentration can be increased exponentially, making it extremely useful as a sprayer for a wide variety of garden crops.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view illustrating the sprayer according to the present invention, Fig. 2 is a perspective view thereof, and Fig. 3 is a perspective view showing the inside of the connection between the water supply pipe and the chemical liquid supply pipe. It is. FIG. 4 is an internal perspective view of a connecting portion between a water supply pipe and a chemical liquid supply pipe, showing another embodiment of the present invention. 4... Water tank, 7... Spray nozzle, 8... Water supply pipe, 12... Chemical solution tank, 14... Flow rate control valve.

Claims (1)

[Scope of utility model registration request] Water supply pipe 8 sucks water from inside the water tank 4
In the sprayer, which sprays from the jet nozzle 7 through the water, a chemical liquid tank 12 containing the chemical liquid is separately provided, and a plurality of chemical liquid tanks 12 are installed in the middle of the water supply pipe 8, one end of which communicates with the inside of the chemical liquid tank 12. A sprayer characterized in that each opening end 17a on the other end side of branch pipes 17 having different pipe diameters is connected in communication and is equipped with a flow rate control valve 14 that can independently and individually adjust the opening and closing of each branch pipe 17. .