JP2001178348A - Soil disinfector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a soil disinfector so as to have a structure which does not discharge a chemical in larger amount than necessary when the chemical is packed into a feed pipe. SOLUTION: This soil disinfector 20 carries out disinfection of soil by feeding a chemical in a chemical tank 24 into plural chemical injecting nozzles 29 and 29 under pressure and injecting the chemical into soil. The soil disinfector 20 is constituted by mounting driving motors 28 having the same number as the feed pumps 27 thereon and each attaching and piping chemical feed pumps 27 and driving motors 28 to each of chemical injecting nozzles 29 to make each driving motor drivable each independently or all together or every arbitrary driving motor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil disinfection method for killing root worms and the like that occur in soil by injecting a chemical solution before cultivation in a field where horticultural crops and vegetables are grown. Machine technology.

[0002]

2. Description of the Related Art Conventionally, a soil disinfecting machine is mounted on a tractor at the rear of a tractor or a cultivator, and a chemical solution is injected into the soil by the soil disinfecting machine to kill pathogenic bacteria, root worms and the like generated in the soil. Techniques for performing this are known.

The chemical is stored in a chemical tank, sucked by a chemical delivery pump, pumped into a delivery pipe, and sent to a chemical injection nozzle at the rear of the machine. Conventionally, as shown in FIG.
At the rear end of 52, it is branched into a "Y" shape, and one chemical solution delivery pump 27 is connected to two chemical solution injection nozzles 29. In addition, two chemical solution delivery pumps 27
27 is driven by one motor 28, that is, the chemical solution delivery pumps 27 are connected via a transmission shaft 36 and are driven in conjunction with each other. In such a configuration, if the power supply of the drive switch 61 is turned “ON”, the two chemical liquid delivery pumps 27.
27 is driven, and the liquid medicine is pumped through the delivery pipes 52, 52, and branches into four liquid injection nozzles 29, 29, 29, 29.
It is sent to 29.

FIG. 5 is a specific example. Generally, FIG.
The number of the chemical solution delivery pumps is not limited to two, but may be plural,
Accordingly, a plurality of chemical liquid injection nozzles are also provided.

[0005]

However, in the prior art as shown in FIG. 5, when the spraying operation is started, the chemical delivery pumps 27 and the chemical injection nozzle 2 are used.
9, 29, 29, 29 and each delivery pipe 52.
Since there is no liquid in the liquid supply pump 52, the liquid
It is necessary to run idle the 7.27, and the chemical solution delivery pump 2
The performance varies depending on 7.27, so that the time required to fill the delivery pipes 52 with the liquid medicine also varies. As a result, in order to fill all the delivery pipes 52 with the chemical solution, the short delivery pipe 52 is first filled with the chemical solution, and then flows down until the inside of the long delivery pipe 52 is filled. The drug solution was released in vain. In addition, depending on the type of the chemical solution, when it diffuses into the air, a irritating odor is generated in some cases, which causes discomfort to the operator and the people near the soil sprayer 20.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to improve a soil disinfecting machine with a structure that does not allow the chemical solution to flow out more than necessary in the operation of filling the chemical solution into the delivery pipe.

[0007]

The above is the problem to be solved by the present invention. Next, means for solving the problem will be described. That is, in a soil disinfecting machine that sends a chemical solution in a chemical solution tank to a plurality of chemical solution injection nozzles and injects the same into the soil to perform sterilization and disinfection, a chemical solution delivery pump and a drive motor are attached to each of the chemical solution injection nozzles, and piping is performed. Each drive motor can be driven independently, all at once, or for each drive motor.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved and the configuration of the present invention are as described above, and an embodiment of the present invention shown in the accompanying drawings will be described below. FIG. 1 is a plan view of a tractor equipped with a soil disinfecting machine according to a first embodiment of the present invention, FIG. 2 is a perspective view of the soil disinfecting machine, and FIG. 3 is a front view of a tractor equipped with a chemical tank, a chemical delivery pump and the like. FIG. 4 is a plan view of a tractor equipped with a soil disinfecting machine according to a second embodiment of the present invention, and FIG. 5 is a plan view of a tractor equipped with a conventional soil disinfecting machine.

First, the configuration of a towing vehicle for towing the soil disinfecting machine 20 as a tractor will be schematically described. As shown in FIG. 1, the tractor includes a traveling vehicle 1 and a towing unit 10 connected to a rear portion of the traveling vehicle 1. Front and rear wheels of the traveling vehicle 1 have front wheels 2.2 and rear wheels, respectively. 3.3 is suspended. An engine, a battery 19, and the like are mounted in a hood 4 in front of the traveling vehicle 1, a steering handle 6 is disposed behind the hood 4, and a driver's seat 5 on which an operator sits is disposed behind the steering handle 6. Have been. In addition, fenders 7L and 7R on both sides of the driver's seat 5 include:
Various operating devices such as a main shift lever and a PTO shift lever are provided, and a foot accelerator pedal, a left and right brake pedal, a main clutch pedal, and the like are provided at the feet in front of the driver's seat 5.

As shown in FIGS. 1 and 2, the towing portion 10 includes a top link 11, a lower link 12 and a lower link 12.
The top link 11 and the lower link 12
-It is configured so that various working machines can be connected to 12 and towed.

The tow vehicle of the soil disinfecting machine 20 is not limited to a tractor, but may be a cultivator or the like.

Next, a description will be given of an overall configuration in a case where the tractor is the traveling vehicle 1 and the soil disinfecting machine 20 is mounted on the towing portion 10 thereof. As shown in FIGS. 1 and 2, top link masts 21 are provided at the front end of the mounting portion of the soil disinfecting machine 20, and the upper ends of the top link masts 21 are connected to the top link 11 of the tractor 10 of the tractor. At the lower end of the top link mast 21, there is a support rod 2.
The rear ends of the lower links 12 are pivotally connected to left and right pins 41 which project outward from the front ends of the support rods 22. In this way, the top link 11 and the lower link 12 are used for the soil disinfecting machine 20.
And can be supported and towed.

On the rear surface of the support rods 22, a "U" -shaped mounting frame 23 is fixedly mounted in plan view.
At the rear end of the mounting frame 23, the two arms 23
A pressure reducing roller 25 is rotatably supported between a and 23a, and is configured to press a field.

At the front end, the arm portions 23a and 2a
In the connecting portion 23b of the mounting frame 23 connecting the 3a,
Are disposed at regular intervals, and on the back of the liquid injection claws 26, 26,.
The chemical liquid injection nozzles 29 are provided so as to be set at a predetermined depth.

As shown in FIGS. 1 and 3, at the front of the traveling vehicle 1, a support frame 31 having a "U" shape in a plan view is fixed from both sides to the front.
On the upper surface of the front part of the support frame 31,
2 and 32 are fixedly mounted, and the chemical liquid tanks 24 and 24 are mounted on the chemical liquid tank mounting tables 32 and 32, respectively. In the two arm portions 31a constituting the support frame 31, a support plate 33 is laid transversely at an intermediate position in the longitudinal direction, and the same number of the chemicals as the chemical injection nozzles 29 are provided on the support plate 33. The delivery pumps 27 are fixedly provided. Thus, the chemical solution delivery pumps 27 are arranged side by side immediately after the chemical solution tanks 24 in a positional relationship. In addition, each chemical solution delivery pump 27
27 ... are motors 28, 28 ...
Are operated by a motor switch panel 60 described later disposed near the driver's seat 5 (the right fender 7R in the present embodiment).

The chemical solution delivery pump 27
.. and chemical liquid tanks 24, 24 are suction pipes 51, 51
, And the chemical solution delivery pump 27
Are connected by delivery pipes 52,. that's all,
The configuration of the soil disinfecting machine 20 has been schematically described. Next, the performance of the soil disinfecting machine 20 according to the present invention will be described with reference to comparison with a conventional example.

In a delivery pipe 52 connecting the chemical delivery pump 27 and the chemical injection nozzle 29, conventionally,
As shown in FIG. 5, the delivery pipes 52 are branched in a “Y” shape at the rear ends thereof, and are connected from one solution delivery pump 27 to two solution injection nozzles 29.

The two chemical delivery pumps 27 shown in FIG. 5 have a structure driven by one motor 28, that is, the two chemical delivery pumps 27
6 and are configured to be driven in conjunction with each other. The motor 28 and the battery 19 are connected to a wiring cord 68.
And a motor switch panel 60 is provided in the middle of the wiring and attached to the fender 7R.

In the delivery pipes 52, outflow confirmers 54 are provided in the middle of the pipe from the chemical delivery pump 27 to the chemical injection nozzle 29, and the outflow confirmers 54 are also provided on the motor switch board 60. Was arranged in.

The outflow confirmers 54 may be provided in the delivery pipes 52 near the chemical solution delivery pumps 27, and the location of the delivery pipes 52 is not particularly limited.

In this way, the operator drives and stops the chemical solution delivery pumps 27 while checking the chemical solution flowing through the delivery pipes 52 while sitting in the driver's seat 5.
That is, in order to send out the chemical, the power supply of the drive switch 61 is turned “ON”, the motor 28 is driven, and the two chemicals sending pumps 27 are simultaneously driven by the motor 28. 52 was fed under pressure, branched, and sent to four chemical liquid injection nozzles 29.29.29.29.

However, at the beginning of the spraying operation, the chemical solution delivery pump 27, 27 and the chemical solution injection nozzle 29, 29.2 are used.
Since the inside of the delivery pipes 52, 52 between the pipes 9 and 29 is not filled with the drug solution, the drug solution delivery pumps 27, 27 are operated idle to fill the drug solution. Since the lengths are different, the filling time varies, and the chemical liquid flows down from the previously filled delivery pipe 52 as it is. Further, depending on the type of the chemical liquid, when it diffuses into the air, an irritating odor is generated Some of them were uncomfortable to the operator and others near the soil sprayer 20.

The present invention has been made in view of the above points, and
An object of the present invention is to improve the soil disinfecting machine 20 so as to prevent the chemical solution from flowing out more than necessary when the chemical solution is filled in the inside of the second and second 52.

That is, the chemical solution delivery pump 2 according to the present invention.
As shown in FIG. 1, in a delivery pipe 52 connecting the chemical solution injection nozzle 29 and the chemical solution injection nozzle 29,
・ 27 ・ 27 and chemical liquid injection nozzle 29 ・ 29 ・ 29 ・ 29
Is the same number as the one-to-one correspondence, that is,
One chemical solution delivery pump 2 for each delivery pipe 52
7 and the chemical liquid injection nozzle 29 are connected.

A motor 28 is provided for each of the chemical solution delivery pumps 27, and the motors 28, 28, 28, 2
The drive switches 63, 63, 63, 63 are provided for every 8 so that they can be individually driven. Then, all the motors 28, 28, 28 are connected to the respective drive switches 63, 63, 63, 63.
All drive switches 62 for simultaneously driving the nozzles 28 can be connected in parallel, and a unit switch that can select an arbitrary chemical liquid injection nozzle 29 and drive it in combination can also be provided. Thus, the all-drive switch 62, the drive switches 63, 63, 63, 63 and the unit switches (not shown) are provided on the motor switch panel 60, and are disposed on the fender 7R on the right side of the driver's seat 5.

With this configuration, when the power is turned on and the work is started, there is a difference in the filling time in each of the delivery pipes 52, 52, 52, 52.・ 63 ・ 63 is all “O
The drive switch 63 is turned "OFF" sequentially from the delivery pipe 52 which has been filled after "N", and the chemical solution delivery pump 27 is sequentially stopped. Alternatively, drive switches 6 one by one
3 is turned "ON" to fill the delivery pipe 52 one by one with the drug solution and stop. In this manner, the chemical solution delivery pump 2
By stopping 7, the chemical solution is not wastedly released, and as a result, the odor due to the chemical solution can be prevented. When turning around during work or when resuming after interruption, all the drive switches 62 are set to “O”.
If "N", all the motors 28, 28, 28, 28 can be driven at the same time, and all the chemical liquid delivery pumps 27, 27, 27, 27 can be driven at the same time. In addition, if a unit switch is used, the ON / OFF operation can be easily performed by a single operation when the last strip is not disinfected or when the last strip is disinfected one by one.

Further, as a second embodiment according to the present invention, as shown in FIG. 4, the tank / pump support 30 is mounted on the towing unit 10, the traveling vehicle 1, or the soil disinfecting machine 20. It can also be arranged. Further, the drive switches 63, 63, 63
7, 27, 27, 27. In addition, all the drive switches 62 or unit switches are disposed on the motor switch panel 60, and the motor switch panel 60 is disposed on the fender 7R.

With this configuration, it is possible to configure the same operation as in the first embodiment. In this case, the weight balance is deteriorated, but the piping and wiring distance is shortened, the assembly can be simplified, and the cost can be reduced. Further, it can be easily attached and detached by the traction unit 10.

[0029]

The present invention is configured as described above.
The following effects are obtained. That is, in a soil disinfecting machine that sends a chemical solution in a chemical solution tank to a plurality of chemical solution injection nozzles and injects the same into the soil to perform sterilization and disinfection, a chemical solution delivery pump and a drive motor are attached to each of the chemical solution injection nozzles, and piping is performed. , Each drive motor independently,
Alternatively, by being configured to be able to be driven simultaneously or for each drive motor, a predetermined amount of a chemical solution can be filled in each pump or pipe, and an outflow of an excessive chemical solution can be prevented, so that a bad smell due to the chemical solution can be prevented. Spreading can also be suppressed.

[Brief description of the drawings]

FIG. 1 is a plan view of a tractor equipped with a soil sterilizer according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a soil sterilizer.

FIG. 3 is a perspective view of a front portion of a tractor on which a chemical solution tank, a chemical solution delivery pump, and the like are mounted.

FIG. 4 is a plan view of a tractor equipped with a soil sterilizer according to a second embodiment of the present invention.

FIG. 5 is a plan view of a tractor equipped with a conventional soil disinfecting machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running vehicle 7 Fender 9 Towing part 19 Battery 20 Soil disinfection machine 24 Chemical solution tank 26 Chemical solution injection claw 27 Chemical solution delivery pump 28 Motor 29 Chemical solution injection nozzle 52 Delivery pipe 62 Full drive switch 63 Drive switch

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Akihiro Hogami 6-5-12, Tsuchiyama, Himeji-shi, Hyogo Agri-Techno Yazaki Corporation (72) Inventor Shigeyoshi Maeda 6-5-1, Tsuchiyama, Himeji-shi, Hyogo No. Agri-Techno Yazaki Corporation F-term (reference) 2B121 AA16 AA20 CB13 CB14 CB25 CB32 CB42 EA25 FA06 FA15

Claims (1)

[Claims] 1. A soil disinfecting machine for disinfecting and disinfecting a soil by pumping a chemical solution in a chemical solution tank to a plurality of chemical solution injection nozzles and injecting the same into soil, wherein a chemical solution delivery pump and a drive motor are respectively mounted on each of the chemical solution injection nozzles. A soil disinfecting machine characterized in that each of the driving motors is independently or simultaneously driven or can be driven by an arbitrary driving motor.