JP6777345B2 - Water air cushion boat for spraying chemicals - Google Patents

Description

The present invention relates to a water air cushion boat for spraying chemicals that sprays chemicals on paddy fields.

An air cushion boat (also called a hovercraft) that can be remotely controlled is used for spraying chemicals on paddy fields. The air cushion boat is equipped with a chemical tank, navigates paddy fields by remote control, and sprays chemicals from the chemical tank (Patent Document 1).

Usually, for paddy fields, weeding treatment that suppresses germination from weed seeds is performed as an initial weeding period for 2 to 3 weeks after planting, and then weeding that kills the germinated weeds as a medium-term weeding period. Processing is done. However, chemical spraying using the air cushion boat has a problem that it can be used only during the initial herbicide period. The air cushion boat is required to have a certain size because it is equipped with a large amount of liquid chemicals to be sprayed on the paddy field and is further equipped with a navigation control mechanism such as a large propeller. Therefore, during the initial herbicide period, the seedlings are not large, so that the seedlings are not damaged by the navigation of the air cushion boat, but during the middle herbicide period, the rice to be grown is navigated by navigation. It becomes an obstacle and may damage the rice during navigation.

The air cushion boat is expensive, and if it can be used only for a short period of time, it cannot be used by individual farmers or the like.

Utility Model Registration No. 3156410

Therefore, an object of the present invention is, for example, to provide a water air cushion boat for spraying chemicals, which can be used not only during the initial herbicide period, can be miniaturized, and can easily spray chemicals and control navigation.

In order to achieve the above object, the water-based air cushion boat for spraying chemicals of the present invention
It has a main body and a skirt,
The skirt part
Arranged around the bottom of the body
The main body
Equipped with a bottle mounting unit, nozzle injection unit, and injection direction control unit,
The bottle mounting portion is a mounting portion for a drug bottle.
The nozzle injection unit is an injection unit that ejects the medicine in the medicine bottle into the inside of the skirt part.
The injection direction control unit is a control unit for the injection direction by the nozzle injection unit, and is characterized by also serving as a navigation control unit for controlling the navigation of the main body.

According to the present invention, effective diffusion of the drug is possible by injecting the drug into the skirt portion, and navigation control of the main body is also possible by controlling the injection direction of the drug. Therefore, the water-based air cushion boat for spraying chemicals of the present invention can simplify the diffusion and navigation system of chemicals, and thus can be miniaturized.

FIG. 1 is a perspective view of the ACV1 for spraying a drug according to the first embodiment of the present invention. FIG. 2 is a perspective view of the ACV1 for spraying a drug according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the ACV1 for spraying a drug according to the first embodiment of the present invention. FIG. 4 is a schematic view showing a state of use of the chemical spraying ACV1 according to the first embodiment of the present invention in a paddy field.

The water air cushion boat for spraying chemicals of the present invention further has, for example, a rotor that rotates in the traveling direction of the main body.

In the water air cushion boat for spraying chemicals of the present invention, for example, the maximum width is less than the planting width of seedlings.

The water-based air cushion boat for spraying chemicals of the present invention further includes, for example, an injection pressure control unit, and the injection pressure control unit controls the injection pressure by the nozzle injection unit.

In the water air cushion boat for spraying chemicals of the present invention, for example, the mounting portion is a mounting portion for a 500 to 750 mL capacity bottle.

The water-based air cushion boat for spraying chemicals of the present invention further has, for example, a receiving unit for receiving maneuvering data from a maneuvering terminal.

According to the present invention, for example, in order to correct the navigation course of a surface cushion boat navigating on the water surface and to realize pinpoint spraying of chemicals, an image analysis camera and a sensor for remote sensing of a field are mounted. It is also possible to install auxiliary functions for growing and preserving rice. In addition, the aging of agricultural workers and labor shortage have become problems. According to the present invention, for example, in the work in a paddy field, the work efficiency of spraying a chemical such as a herbicide is improved, and the amount of spraying is increased. It also makes it possible to reduce and improve herbicide efficiency.

Next, an embodiment of the present invention will be described with reference to the drawings. The present invention is not limited or limited by the following embodiments. In each of the following figures, the same parts are designated by the same reference numerals. Unless otherwise specified, the explanations of the respective embodiments can be referred to each other's explanations. The water air cushion boat for chemical spraying of the present invention is also hereinafter referred to as an ACV (Air cushion vehicle) for chemical spraying.

[Embodiment 1]
FIG. 1, FIG. 2, and FIG. 3 show a schematic diagram of an ACV for spraying a drug according to the present embodiment. FIG. 1 is a perspective view of an ACV1 for spraying a drug, in which FIG. 1A shows a state before the drug bottle is mounted, and FIG. 1B shows a state in which the drug bottle 2 is mounted. Further, in FIG. 2, (A) is a perspective view of the upper main body 102 of the main body 10 in the chemical spraying ACV1, and (B) is a perspective view of the lower main body 101 and the skirt portion 20 of the main body 10 in the chemical spraying ACV1. It is a figure. FIG. 3 is a cross-sectional view of the chemical spraying ACV1 in use in the paddy field 30.

The drug spraying ACV1 has a main body 10 and a skirt portion 20. The main body 10 is formed of an upper main body 102 and a lower main body 101, and the upper main body 102 is a lid portion of the lower main body 101. For the main body 10, for example, a urethane foam material can be used from the viewpoint of weight reduction.

The skirt portion 20, also referred to as an air cushion, is arranged around the bottom portion of the main body 10. Specifically, the skirt portion 20 extends downward from the periphery of the bottom portion of the lower main body 101, and the region surrounded by the skirt portion 20 is a spatial region. The skirt portion 20 may be further provided with a floating ring on its side surface, for example. Examples of the floating ring include a urethane foam material and the like. By providing the floating ring, the buoyancy of the chemical spraying ACV1 can be further improved.

In the chemical spraying ACV 1, the main body 10 includes a bottle mounting unit 11, a nozzle injection unit 14, and an injection direction control unit 15. The main body 10 may further optionally include a rotor 12 and a camera 13. The main body 10 further includes, for example, a battery 17.

A drug bottle 2 containing a drug is mounted on the bottle mounting portion 11 of the main body 10. The type of the drug contained in the drug bottle 2 is not particularly limited, and examples thereof include a stock solution spray type flowable herbicide. The present invention is suitable for spraying a stock solution spraying type chemical, for example, because the chemical can be diffused into the irrigation water by nozzle injection, as will be described later. Further, by using the undiluted solution spraying type drug in this way, for example, the capacity of the drug bottle to be mounted can be reduced, so that the ACV1 for spraying the drug can also be miniaturized.

The shape of the bottle mounting portion 11 is not particularly limited, and for example, the mounted drug bottle 2 may be fixed. The size of the drug bottle 2 that can be mounted on the bottle mounting portion 11 is not particularly limited. As described above, for example, the size of the drug bottle 2 can be set to 500 to 750 mL because the size can be reduced by using the flowable herbicide. In the case of a conventional diluted and sprayed drug, for example, a 25 to 50 L drug tank may be mounted. Therefore, according to the present invention, the size of the drug bottle 2 to be mounted may be, for example, about 1/100. It is also possible to suppress it. The bottle of the flowable herbicide usually has a capacity of 500 to 750 mL, and a product that can be sprayed on about one paddy field with one bottle is common. Therefore, according to the present invention, by mounting these bottles, it is possible to spray the chemicals assuming the paddy field area per bottle.

In the chemical spraying ACV 1, the nozzle injection unit 14 is an injection unit that nozzle-injects the chemicals in the chemical bottle 2 mounted on the bottle mounting portion 11 into the skirt portion 20. The nozzle injection portion 14 is led out to the inside of the skirt portion 20, and is directly or indirectly communicated with the mounted drug bottle 2 via a tube. The nozzle shape of the nozzle injection unit 14 is not particularly limited, and examples thereof include a cylinder nozzle and, as a specific example, a pump pressure cylinder nozzle. It is preferable that the nozzle tip of the nozzle injection unit 14 is arranged so that its axial direction is inclined with respect to the water surface, for example. Thereby, for example, the injection angle inside the skirt portion 20 can be controlled, the floating navigation and the direction can be controlled by the airflow pressure in the oblique direction, and the stirring effect of the chemical in the water of the paddy field can be obtained. Is. Further, by having the nozzle injection unit 14, for example, air and chemicals can be mixedly injected and used as power for ascending navigation, so that it is not necessary to load a large engine and fuel for driving the engine. is there. For this reason, the basic driving of navigation can be supplemented with battery power, for example, and it is not necessary to install a heavy engine and fuel (for example, a mixed fuel of gasoline and engine oil), and the weight and size can be reduced. is there.

When the chemical spraying ACV1 is arranged in the paddy field, as shown in FIG. 3, the space inside the skirt portion 20 is in contact with the water surface of the paddy field 30. Then, by injecting the drug directly onto the water surface inside the skirt portion 20 by the nozzle injection section 14, the drug can be diffused onto the water surface. Further, the nozzle injection unit 14 can inject the chemical onto the water surface inside the skirt portion 20 to raise the chemical spraying ACV1.

According to the chemical spraying ACV1, since the chemical is sprayed onto the water surface inside the skirt portion 20, for example, the chemical can be suppressed from being scattered in the air and the herbicidal effect of the chemical can be improved. The number of nozzle injection units 14 is not particularly limited, and may be one or two or more.

The chemical spraying ACV 1 further includes an injection direction control unit 15 that controls the injection direction of the nozzle injection unit 14. According to the injection direction control unit 15, for example, the nozzle tip can be rotated, the inclination angle of the nozzle tip with respect to the water surface can be changed, and the like. The injection direction control unit 15 also serves as a navigation control unit that controls the navigation of the main body 10. The injection direction control unit 15 is, for example, a direction control servomotor. According to the servomotor, for example, as shown in FIG. 3, the nozzle tip of the nozzle injection unit 14 is rotated (arrow R direction in FIG. 3) to change the drug injection direction (arrow Y direction in FIG. 3). Can be done. When the ACV1 for spraying the chemical is swirled, the spraying direction of the chemical may be changed by, for example, the rotation of the nozzle injection unit 14. Specifically, for example, when turning to the right, for example, when turning the nozzle tip of the nozzle injection unit 14 toward the right rear direction and turning to the left, for example, when turning the nozzle tip of the nozzle injection unit 14 to the left rear. Turn in the direction.

The nozzle injection control unit may further include an injection pressure control unit that controls the injection pressure of the nozzle injection unit 14. The injection pressure control unit is a control unit for injection pressure by the nozzle injection unit 14, and also serves as a navigation control unit for controlling the navigation of the main body 10. Examples of the injection pressure control unit include an injection pump unit 18. According to the injection pressure control unit, for example, the navigation speed can be relatively promoted by relatively increasing the injection pressure, and the navigation speed can be relatively decreased by relatively decreasing the injection pressure. .. When rotating the drug spraying ACV 1, for example, the injection pressure from the nozzle injection section 14 is increased, the injection pump is kept rotating, and the cock valve for charging the drug from the drug bottle 2 is closed. , It is preferable to suspend the drug spraying.

The rotor 12 is a rotor that rotates in the traveling direction (arrow X direction) of the main body 10. The rotor 12 may be arranged in front of the main body 10 or in the rear, for example, but by arranging the rotor 12 in the front in the traveling direction, the paddy field to be navigated can be smoothed. Further, for example, weeds can be detected by the rotor 12 coming into contact with weeds in the paddy field, and weeds, suspended matter, etc. in the paddy field can be pushed into the water or the raised soil can be agitated into the water. The herbicidal effect of the chemicals sprayed on the water surface can be further improved.

The shape of the rotor 12 is not particularly limited, and for example, it is preferable that the surface of the rotor 12 has a spiral unevenness (also referred to as a spatula shape) in the axial direction.

Further, it is preferable that the rotor 12 has, for example, a right rotor and a left rotor, and the rotation speed can be controlled separately by a transmission gear. In this way, by controlling the right rotor and the left rotor separately and combining them with the control of the injection direction of the nozzle injection unit 14, for example, the turning of the chemical spraying ACV1 can be controlled. As a specific example, when the chemical spraying ACV1 is swiveled to the left, for example, the right rotor is rotated in the forward direction (traveling direction) and the rotation speed is increased, and the left rotor is rotated in the rear direction. Further, the nozzle of the nozzle injection unit 14 is rotated so that the injection direction is obliquely to the left and rearward. As a result, the drug spraying ACV1 can be swiveled to the left. Further, when the chemical spraying ACV1 is swiveled to the right, for example, the left rotor is rotated in the forward direction (traveling direction) and the rotation speed is increased, and the right rotor is reversed in the rear direction. Rotation is performed, and the nozzle of the nozzle injection unit 14 is further rotated so that the injection direction is obliquely to the right and backward. As a result, the drug spraying ACV1 can be swiveled to the right.

The rotor 12 may further include, for example, a pressure sensor mounting portion 16 on which a pressure sensor is mounted. Thereby, for example, an obstacle in contact with the rotor 12 during navigation can be detected. Further, when the rotor 12 steps down on the raised soil on the water surface and entrains it in the water, for example, it is useful for the function of increasing the rotation speed and cultivating, so that the pressure sensor (detects the vertical movement pressure of the rotor 12). It is also possible to use the trigger function (trigger) by.

In the chemical spraying ACV 1, the camera 13 is preferably arranged above the upper main body 102 of the main body 10 so that the front of the paddy field can be confirmed, for example. The type of the camera 13 is not particularly limited, and for example, a high-resolution camera for image analysis can be used. By mounting the camera 13 in this way and analyzing the image, for example, by spraying the drug pinpointly to a place where the water level is shallow where weeds are likely to grow, a place where many weeds are growing, etc., the whole It is also possible to reduce the amount of chemicals sprayed.

The size of the chemical spraying ACV1 is not particularly limited, and for example, as shown in FIG. 4, the maximum width is preferably less than, for example, the planting width (W) of the seedling 31 in the paddy field 30. With such a width, for example, even during the medium-term herbicide period, it is possible to prevent the rice from being damaged by navigation.

The navigation of the drug spraying ACV1 can be performed by, for example, a control terminal. In this case, the drug spraying ACV1 has, for example, a receiving unit that can be connected to the control terminal via a communication network and receives control data from the control terminal. The control terminal is not particularly limited, and examples thereof include a radio, a smartphone, and a tablet.

The communication line network is not particularly limited, and for example, a network using a known wireless communication means can be used. For example, when remote sensing data is transmitted to the cloud from an operation terminal, a smartphone or the like is used as the operation terminal. A form that can be formed is preferable. Examples of the network include WiFi, LAN (Local Area Network) and the like.

The drug spraying ACV1 can be used, for example, as follows. First, the drug bottle 2 is mounted on the mounting section 11 of the drug spraying ACV1. Then, in the paddy field, while navigating the ACV1 for spraying the chemical, the nozzle injection portion 14 ejects the chemical to the water surface inside the skirt portion 20. At that time, the navigation direction of the chemical spraying ACV1 can be controlled by controlling the injection direction from the nozzle injection unit 14 by the injection direction control direction 15.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the structure and details of the present invention within the scope of the present invention.

This application claims priority on the basis of Japanese application Japanese Patent Application No. 2017-254593 filed on 28 December 2017 and incorporates all of its disclosures herein.

According to the present invention, effective diffusion of the drug is possible by injecting the drug into the skirt portion, and navigation control of the main body is also possible by controlling the injection direction of the drug. Therefore, the water-based air cushion boat for spraying chemicals of the present invention can simplify the diffusion and navigation system of chemicals, and thus can be miniaturized.

1 Water air cushion boat for chemical spraying 10 Main body 101 Lower main body 102 Upper main body 11 Bottle mounting part 12 Rotor 13 Camera 14 Nozzle injection part 15 Injection direction control part 16 Pressure sensor mounting part 17 Battery 18 Injection pump 20 Skirt 2 Bottle 30 Paddy field 31 seedlings

Claims (6)

It has a main body and a skirt,
The skirt part
Arranged around the bottom of the body
The main body
Equipped with a bottle mounting unit, nozzle injection unit, and injection direction control unit,
The bottle mounting portion is a mounting portion for a drug bottle.
The nozzle injection unit is an injection unit that ejects the medicine in the medicine bottle into the inside of the skirt part.
The injection direction control unit is a control unit for the injection direction by the nozzle injection unit, and also serves as a navigation control unit for controlling the navigation of the main body. A water air cushion boat for spraying chemicals. The water-based air cushion boat for spraying chemicals according to claim 1, further comprising a rotor that rotates in the traveling direction of the main body. In addition, it is equipped with an injection pressure control unit.
The water air cushion boat for spraying chemicals according to claim 1 or 2, wherein the injection pressure control unit controls the injection pressure by the nozzle injection unit. The water-based air cushion boat for spraying chemicals according to any one of claims 1 to 3, wherein the maximum width is less than the planting width of seedlings. The water air cushion boat for spraying chemicals according to any one of claims 1 to 4, wherein the bottle mounting portion is a mounting portion for a 500 to 750 mL capacity bottle. The water-based air cushion boat for spraying chemicals according to any one of claims 1 to 5, further comprising a receiving unit for receiving maneuvering data from the maneuvering terminal.

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