JPS5833808Y2 - Auxiliary tank device for power sprayer - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a piping system for a power sprayer in which a main tank is attached to the rear of an I-actor and an auxiliary tank is attached to the front.

A power sprayer is attached to a tractor via a three-point link, but when the main tank is filled with water, the weight is shifted to the rear and the front wheels float, so the weight of the power sprayer is restricted.

In order to overcome this limitation, attempts have been made to provide an auxiliary tank at the front of the tractor to balance the front and back.

However, this method requires cumbersome manual operations when supplying water, spraying, or when the area to be sprayed is small and the amount of chemical solution is small, and it is difficult to maintain a uniform concentration of chemical solution in the front and rear tanks. However, there are still many problems that pose a practical problem, such as insufficient stirring and the risk of the drug settling on the bottom.

The purpose of this invention is to provide a piping device that can solve the above problems, and its gist is that the bottom surface of the auxiliary tank is set higher than the bottom surface of the main tank, and the top surface is set lower than the top surface of the main tank, so that both tanks The lower part communicates with the main tank so that it can be opened and closed, and the upper part always runs inside, and the spillway of the water pipe connected to the discharge side of the high-pressure pump is switchably connected to the main tank and the auxiliary tank, and a stirring nozzle is installed in the injection part. It is in.

The device of this invention and its operation will be explained based on the embodiment shown in the drawings.As shown in FIG. Install auxiliary tanks 3 and 3'.

The bottoms of the auxiliary tanks 3, 3' are higher than the bottom of the main tank 2, and the tops are lower than the top of the main tank.

In the pipeline shown in FIG. 2, when water is supplied, the water supply strainer 4 is put into a water storage tank, from which water passes through the water supply hose 5 and the first three-way switching valve 6, and then enters the inlet of the high-pressure pump 7.

The liquid coming out of the discharge port of the high pressure pump 7 passes through the high pressure hose 8, the water distribution pipe 9, the pressure regulating valve 10, the surplus water hose 11, the second 3-way switching valve 12, the auxiliary tank water injection hose 13, and the stirring nozzle 14.
．． It enters the auxiliary tank 3°3' from 14'.

Furthermore, the liquid in the auxiliary tank flows into the main tank 18 via the communication hose 15, the return hose 16, and the on-off valve 17.

As water supply progresses, the water level in both tanks rises, but
First, the auxiliary tanks 3 and 3' are filled with water, and the overflow hose 1
9 also flows into the main tank 18.

When the on-off valve 17 is closed, the liquid flows from the return hose 16 through the check valve 20 and into the main tank 18 from the stirring nozzle 21.

Since the nozzle 21 has a narrow outlet area, the flow rate is fast and a sufficient stirring effect is achieved.

During spraying work, the first 3-way switching valve 6 is switched to supply the chemical liquid in the main tank 18 to the high-pressure pump 7 to perform the spraying work, but the chemical liquid in the auxiliary tanks 3 and 3' is transferred to the communication hose 15 and the return hose 16. , is transferred to the main tank 18 through the on-off valve 17.

When the liquid level in the main tank begins to fall from the upper surface of the auxiliary tanks 3, 3', air enters the auxiliary tank through the overflow hose 19 and lowers the liquid level.

When supplying a small amount of water only to the main tank 18, the second three-way switching valve 12 is switched, and the chemical solution is directly injected into the main tank 18 from the stirring nozzle 21 via the main tank water injection hose 22 and stirred.

At this time, the on-off valve 17 is closed to block the passage to the auxiliary tanks 3, 3, and the auxiliary tank is left empty. However, since the amount of water supplied to the main tank 18 is small, there is a risk of the tractor losing its balance. That's not it.

As mentioned above, in the device of this invention, not only the liquid volumes in the main tank and the auxiliary tank are always balanced in terms of weight, but also the concentration of the chemical liquid is always kept uniform due to communication.

The complicated operations that were previously required when spraying, filling up with water, and filling a small amount of water are completely eliminated, so you can work more efficiently.

[Brief explanation of drawings]

FIG. 1 is a side view of a tractor equipped with the device of this invention, and FIG. 2 is a fluid circuit diagram of the device of FIG. 1: Tractor, 3: Auxiliary tank, 9: Diversion pipe, 11: Spill water pipe, 12: 3-way switching valve, 13: Auxiliary tank injection pipe, 14.21: Stirring nozzle, 6: Return pipe, 17: On-off valve, 18: Main tank, 19: Overflow pipe, 20: Check valve, 22: Main tank water filling pipe.

Claims (2)

[Scope of utility model registration request] (1) The upper surface of the auxiliary tank mounted on both sides of the front of the tractor is lower than the upper surface of the main tank at the rear of the tractor, and its lower surface is higher than the lower surface of the main tank, and the lower surface of the auxiliary tank is lower than the lower surface of the main tank. An on-off valve is provided in the return pipe leading to the lower part, an overflow pipe is provided from the top surface of the auxiliary tank to the top of the main tank, and an auxiliary tank water filling pipe enters the auxiliary tank from one outlet of the three-way switching valve. 3.
A main tank water injection pipe is provided that enters the main tank from the other outlet of the three-way switching valve, and the return pipe and the main tank water injection pipe are connected via a check valve, and the main tank water injection pipe is connected to the inlet of the three-way switching valve. An auxiliary tank device for a power sprayer characterized by connecting a whole wooden pipe line of a water distribution pipe. (2) Utility Model Registration The device according to claim 1, characterized in that a stirring nozzle is provided at the outlet of each water injection pipe.