JPH11103628A - Sub-boom injector for injecting machine for liquid into soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject sub-boom injector capable of easily injecting a liquid into soil near the roots of fruit trees where any operating vehicles hardly approach. SOLUTION: This sub-boom injector is used for devices injecting a liquid into soil wherein a main beam 3 with nozzles 1 is mounted on a vehicle and a liquid in a tank 6 is set to be emitted from the nozzles 1 by opening a valve 2 in obedience with a controller 8 while being moved to a liquid supply circuit 7 by drive of a pump 5, the sub-boom injector comprising a portable sub-boom 13 provided with a nozzle 11 and valve 12 fixed to a hose 10 connectable to the liquid supply circuit 7 through a hose connector 9 and a harness 15 adapted to open and close the valve 12 of the sub-boom 13 and connected to the controller 8 through a harness connector 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sub-injection device in a soil liquid injector that is mounted on a vehicle body such as a tractor and injects a liquid such as a soil disinfectant into the soil while moving.

[0002]

A soil liquid injection device mounted on a tractor body is easily limited to an area in which the body is easy to travel, and requires work in a narrow place such as an orchard root or the like. It can be difficult to do.

[0003]

According to the present invention, a main beam 3 having a nozzle 1 is mounted on a vehicle body, and a pump 5 drives a liquid in a tank 6 to a liquid supply circuit 7 while supplying a liquid from a controller 8 to the liquid supply circuit 7. A submersible boom 13 having a nozzle 10 and a valve 12 in a hose 10 connectable to the liquid supply circuit 7 by a hose connector 9 in a soil liquid injector in which the nozzle 2 is ejected by opening the valve 2.
And a harness 15 connected to the controller 8 by a hearth connector 14 to open and close the valve 12 of the sub-boom 13 is provided.

[0004]

When the liquid injection work is performed while driving while being seated on the vehicle body 4, the liquid in the tank 6 is driven by the pump 5 while the valve 2 is opened and closed by the operation via the controller 8. The main beam 3 is injected into the soil from the nozzle 1 via the supply circuit 7 and the valve 2. When the sub-injection device is used, the hose connector 9 of the sub-boom 13 and the connector 14 of the harness 15 are connected to the liquid supply circuit 7 and the controller 8 so that the sub-boom 13
By operating the valve 12 at the controller 8 through the controller 8,
By opening and closing with the output from the harness 15, the liquid can be injected into the soil from the nozzle 11 of the sub-boom 13.

As described above, when the liquid is injected into the soil using the sub-injection device, the hose connector 9 of the sub-boom 13 is connected to the liquid supply circuit 7 side, and the harness connector 14 is connected to the controller 8 side. By doing so, the worker can move the valve 1 away from the vehicle body 4 at a portable position.
While performing the two operations, the liquid supply operation can be performed by receiving and interlocking the liquid supply from the liquid supply circuit 7 and the controller 8 on the vehicle body 4 side, so that the liquid can be easily injected into a special place. Can be.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vehicle body 4 is of a four-wheel drive type in which a front wheel 17 and a rear wheel 18 steered by a steering handle 16 are driven by an engine E mounted on a front portion to travel. The soil liquid injector A is mounted on a three-point link mechanism 20 which is lifted and lowered by the lift arm 19 of FIG. 21 is a fender, 22 is a cockpit, and 23 is a safety frame.

The liquid injector A is driven by a tank 6 for storing liquid and a power take-off shaft 24 on the side of the vehicle body 4 to pump the liquid in the tank 6 to a liquid supply circuit 7, and the liquid supply circuit 7. A main boom 3 having a nozzle 1 for ejecting liquid sent through the main boom, a controller 8 for opening and closing the outflow of liquid to the main boom 3, a switch box 25 for operating the controller 8, and the like.

In the liquid supply circuit 7, a pressure regulating valve 26, an accumulator 27, a switching valve 28, an electromagnetic solenoid valve 2 and the like are arranged.
A liquid such as a chemical solution or a fertilizer, which is inhaled from the tank, can be injected into the soil at high pressure from the nozzles 1 of the main booms 3 provided on the left and right sides of the tank 6 at the rear side. Reference numeral 29 denotes a hose for returning surplus liquid to the tank 6.

The valve 2 and the switching valve 28 of the liquid supply circuit 7 are connected to the valve switch S of the switch box 25.
By operating W, it is opened and closed and adjusted via the controller 8, and the operator can operate while sitting on the cockpit 22. 30 is a battery. In the liquid supply circuit 7, a hose connector 32 is provided for an extraction hose 31 that is switched via a switching valve 28. A harness connector 34 is provided on the take-out harness 33 on the controller 25 side.

The valve switch SW includes an ejection switch SW1 for operating and ejecting the valve 2, and an interval for adjusting or changing an intermittent opening / closing operation interval of the valve 2 which is pulse-operated by setting an interval of electromagnetic output. It has a switch SW2, an amount switch SW3 for adjusting the ejection amount, a valve changeover switch SW4 for selecting any one of the plurality of valves 2 from the electromagnetic solenoid valves V1, V2, and V3. The electromagnetic valves V1 and V2 are used as a field effect blowing device, and a time chart t is set between the two valves V1 and V2 in a time chart. The electromagnetic valve V3 is used as an orchard ejection device.

The sub-injection device B includes a hose 10 having a hose connector 9 which is attached to and detached from a hose connector 32 of the liquid supply circuit 7, a valve 12 and a sub-boom 13 having a nozzle 11, and a harness connector on the controller 8 side. And a harness 15 for opening and closing the valve 12. 35
Is a handle for operating the sub-boom 13 and can be carried around with the handle 35. The handle 35 has a switch lever 36 inside the handle 35, and the switch lever 36 is also operated through the controller 8 through the controller 8. The valve 12 can be opened and closed. Further, a switch capable of operating the switching valve 28 is also provided on the handle 3.
It may be provided near five parts. The pulse output signal of the valve 12 is set to be the same as that of the electromagnetic valve V3.

In the operation of injecting the liquid into the soil by the sub-injection device B, the connector 9 of the hose 10 is disconnected from the extraction hose 3.
The connector 14 of the harness 15 is connected to the connector 34 of the harness 33, and the switching valve 28 is switched to the sub-boom 13 by a switch operation in the switch box 25, and the handle 35
The valve 12 is opened by the switch lever 36, and the liquid in the liquid supply circuit 7 flows through the hose 10 into the sub-boom 13 and is injected from the nozzle 11 into the soil.

In FIG. 6, the point different from the above example is that the controller 8 controls the valve 12 of the sub-injection apparatus B as described above.
In a mode in which the electromagnetic valve V3 intermittently outputs and intermittently ejects, the valve 12 is provided integrally with the sub-boom 13, and the interval between the nozzle 11 and the valve 12 is shortened to eliminate the connection by a hose. . Thus, the intermittent ejection by the intermittent output pulse from the controller 8 is accurately performed without breaking. Nozzle 11 and valve 1
In a configuration in which the distance between the valve 1 and the valve 12 is lengthened or connected by a hose, the ejection interval is often long or fast, so that intermittent ejection cannot be performed due to the pressure waveform characteristic of the pulse, or Although it has a drawback such that the characteristics are overlapped and it becomes the same as continuous ejection, such a defect is reduced in the above configuration.

7 to 10, a difference from the above example is that a float 37 is provided in the tank 6, and a float switch SW5 which is turned on and off by the up and down movement of the float 37 is actuated. When the float 37 moves down due to a decrease of a certain amount of liquid or less and the float switch SW5 is turned on, the ejection of the valve 2 is automatically stopped, and the pressure of the pump 5 is reduced to perform a high-pressure liquid ejection operation. Configure to stop. At the time of the return, since the self-return is not performed, the reset switch SW6 is pressed to return. At the time of this automatic stop, the lift cylinder 38
Is output to raise the main boom 3, the valve 2 unit, and the like to bring them into a non-working state. This stop is automatically performed by the upper limit stop limit switch SW7.

In order to prevent the pump 5 from running idle,
When the float switch SW5 is turned on, the input electromagnetic clutch 39 input from the power take-off shaft 24 of the pump 5 is turned off, and the pump 5 is stopped. When the clutch 39 is engaged, the reset switch SW6 is pressed to prevent self-recovery. In FIG. 12, the point different from the above example is that the inside of the manifold 40 of the liquid injecting device of the two-liquid mixing mode is alternately connected to the single path 41 and the multiple path 42 while repeating separation and merging, for example, Water from tank 43 and tank 4
By mixing the two liquids with the liquid chemical from 4 and directly supplying the liquid to the liquid supply circuit 7 such as the pump 5 or the tank 6, the liquid chemical is rapidly and efficiently stirred and mixed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a liquid supply circuit.

FIG. 2 is a block diagram of a liquid injector control unit and a time chart thereof.

FIG. 3 is a control flowchart thereof.

FIG. 4 is a side view of the tractor.

FIG. 5 is a rear view thereof.

FIG. 6 is a block diagram of a liquid supply circuit showing a partially different embodiment.

FIG. 7 is a block diagram of liquid injector control according to another embodiment.

FIG. 8 is a control flowchart thereof.

FIG. 9 is a block diagram of the liquid supply circuit.

FIG. 10 is a block diagram showing another embodiment of the present invention;

FIG. 11 is a control flowchart thereof.

FIGS. 12A and 12B are a front sectional view and a plan view of a manifold part showing another embodiment.

[Explanation of symbols]

 1 Nozzle 2 Valve 3 Main Boom 4 Body 5 Pump 6 Tank 7 Liquid Supply Circuit 8 Controller 9 Hose Connector 10 Hose 11 Nozzle 12 Valve 13 Sub Boom 14 Harness Connector 15 Harness

Claims (1)

[Claims] 1. A main beam (3) having a nozzle (1) is mounted on a vehicle body, and a pump (5) drives a liquid in a tank (6) to a liquid supply circuit (7) while feeding a liquid from a controller (8) to a valve (2).
In a soil liquid injector that ejects from the nozzle 1 by opening the hose, a configurable sub-boom 13 having a nozzle 11 and a valve 12 is provided on a hose 10 connectable to the liquid supply circuit 7 with a hose connector 9, and Controller 8
And a harness 15 connected to a hearth connector 14 for opening and closing the valve 12 of the sub-boom 13.