JPH0448840Y2 - - Google Patents

Description

[Detailed description of the invention] <<Purpose of the invention>><Field of industrial application> The present invention relates to a chemical spraying device used for pest control, sterilization, and fertilization of crops in greenhouses, etc. In particular, the present invention relates to a device that can automatically travel within a greenhouse or the like to spray chemicals.

<Background of the invention> Conventionally, chemical spraying devices for controlling pests and diseases on crops in greenhouses etc. include manual pump-type chemical sprayers carried on the backs of workers, backpack-type misting devices powered by the same, and A hand-held nozzle pipe called a ridge spray nozzle, which is equipped with one to several nozzles, was used. However, with these chemical spraying devices, the operator must enter the greenhouse and spray the chemicals, and when working in a sealed greenhouse, the worker must work with a large amount of mist of the chemicals that fills the greenhouse. There was a major health and safety problem in that people could inhale it. For this reason, the need for chemical spraying work using unmanned equipment has recently attracted attention. Automatic chemical spraying devices have been developed in which the automatic chemical spraying device is suspended and can be used for mobile spraying. However, these methods require the installation of chemical spray equipment and other necessary equipment in every greenhouse, which requires a large amount of money, and although the necessity is recognized, small-scale farmers still do not The current situation is that it has not been put into practical use. In addition, due to the location where this type of automatic chemical spraying equipment is used, cultivated soil may adhere to the rails, or chemicals may accumulate on other travel-related equipment, which is a common problem with overly precise equipment. They could not withstand rough use, and there was no one that was necessarily optimal in this respect.

<Technical matters for which the development was attempted> The present invention was developed in view of this background, and can withstand relatively rough handling or working environments such as in greenhouses where it is desired to spray chemicals as needed. This was an attempt to develop a self-propelled chemical spraying device, which made it possible to perform unmanned chemical spraying work in all greenhouses without the need for separate equipment inside the greenhouse.

<<Composition of the invention>><Means for achieving the purpose> In other words, the self-propelled chemical spraying device of the present invention is equipped with a chemical tank, a pump, and a spray pipe on a machine frame equipped with a self-propelled traveling device, and sprays while moving. In an apparatus for spraying chemicals on crops, the wheels constituting the traveling device are provided with at least four wheels in the front, back, left, and right under the machine frame, and furthermore, guide rollers are provided on the sides of the machine frame in the vicinity of the wheels to abut against the side walls of the ridges, etc. It is characterized by the provision of at least four units in the front, rear, left and right, and is intended to achieve the above-mentioned objective.

<Examples> The present invention will be specifically described below based on illustrated examples. First, reference numeral 1 is a self-propelled chemical spraying device of the present invention, which uses the passage S provided between the ridges L in the greenhouse H as a running path, and plants in the ridges L while self-propelled. Spray chemical W on crop A. Of course, as it is, the self-propelled chemical spraying device 1
The road winds in a meandering direction, making it impossible to always travel in a straight line. Therefore, in the present invention, as a characteristic configuration, the guide roller 20 is installed so as to protrude laterally than the width of the machine frame 3 of the self-propelled chemical spraying device 1, and this guide roller 20 is placed in contact with the side wall B of the passage S. By using this as a guide wall and regulating the direction of travel, the vehicle always travels in a straight line. Next, the configuration of each part including the guide roller 20 will be specifically explained. First, the machine frame 3 consists of a base part 4 assembled from angle materials or the like, and a support frame 5 formed by bending pipe materials or the like to support the base part 4 from below. One end is raised upward, and this raised part is used as a handle 6. A drug tank T is mounted on the upper surface of the platform 4, and on the top of the drug tank T there is a charging lid 8 that closes the charging port for the drug W, and the charging lid 8 is pressed from above. , a clamp 9 is provided for holding. Furthermore, a pump P, a motor M for driving the pump P, and a battery 10 for supplying voltage to the motor M are mounted on the support frame 5 below the drug tank T. A supply pipe 11 is connected from the drug tank T to a pump P, and a pressure feed pipe 12 is further connected from the pump P so as to be raised upward. A pressure gauge 13 is provided at the upper end of this pressure feed pipe 12, and a pressure feed port 1 is provided in the middle part.
4 are provided in a number corresponding to the number of spray pipes 15. Further, the pressure feed port 14 and the spray pipe 15 are connected by a pressure feed hose 16, and a plurality of nozzles 17 for spraying the drug W in the form of a mist are provided at various locations on the spray pipe 15 that stands up in the vertical direction. There is. A traveling device 19 loaded with the above-mentioned equipment and traveling is installed at the bottom of the self-propelled chemical spraying device 1. This traveling device 19 has a battery 1
0 drives the running motor 21, and the power of this running motor 21 is transmitted through transmission members such as chains and sprockets to at least one of the front and rear wheels of the four wheels 22 provided in pairs on the front and rear. Or configured to convey to each. Further, a switch 23 is provided in front and rear of the support frame 5 to change the running direction or to stop the vehicle. The aforementioned guide rollers 20 are also attached to the support frame 5 via support arms 24, and at least four of them are arranged to extend out to the sides of the machine frame, corresponding to the four wheels 22, respectively. established in Furthermore, the handle 6 of the support frame 5 has an operation box 26 with a hand switch 25 on the top, and the top of the drug tank T has controls for controlling the spray amount of the drug W, the running speed of the traveling device 19, switching the traveling direction, stopping, etc. A control device 27 is mounted thereon.

The self-propelled chemical spraying device 1 of the present invention has the above-described specific configuration, and the pressure feeding route for the chemical W and the operation sequence will be explained below. First, as a preparation, the input lid 8 of the drug tank T is removed, and the necessary amount of medicine W is inputted from the input port.After the injection, the input lid 8 is again placed on the tank and held by the clamp 9 from above. Also, check the state of charge of the battery 10 and charge it if necessary. Then, by operating the hand switch 25 of the operation box 26, the self-propelled chemical spraying device 1 is
starts. That is, voltage is supplied from the battery 10 to the motor M for driving the pump P and the travel motor 21 of the travel device 19, and the medicine W starts to be sprayed and the robot starts to travel. During this traveling, the guide roller 20, which is a characteristic feature of the present invention, moves straight while contacting the side wall B between the ridges. On the other hand, when spraying the medicine W, the medicine W is suctioned and pressure-fed from the medicine tank T through the supply pipe 11 to the pump P, flows through the pressure-feeding hose 16 from the pressure-feeding port 14 provided in the pressure-feeding pipe 12, and is sprayed. It reaches the pipe 15 and is sprayed from the nozzle 17 in the form of mist. Of course nozzle 1
The flow rate of the medicine W to be injected from 7 is set in advance by a flow rate adjusting device such as a regulator (not shown) or a solenoid valve operated in response to a command from the control device 27. Furthermore, since the running speed is largely related to the amount of sprayed medicine W, it is set in correlation with the flow rate of medicine W injected from the nozzle 17. When the forward stroke ends, the switch 23 comes into contact with an operation piece (not shown), and the traveling direction is switched from the forward stroke to the backward stroke. In this case, in the retreat process, the drug W
If there is no need to spray, the motor M of the pump P is not activated, only the traveling motor 21 of the traveling device 19 is activated, and the self-propelled chemical spraying device 1 is moved backward to return to its original position. In the backward step, as in the forward step, when spraying the drug W, the robot returns to its original position while spraying the drug W based on the value set in advance based on the relationship between the flow rate of the drug W and the traveling speed as described above. Then, when it returns to its original position, switch 2
The switch 23 located on the opposite side from the switch 3 comes into contact with an operation piece (not shown) to stop the spraying and running of the medicine W. Further, if the amount of sprayed medicine W is still insufficient in one round trip, the above steps are repeated. When the spraying work of the chemical agent W is completed, the greenhouse is moved to the next greenhouse and the above operation is repeated.

Although the above is a description of the illustrated embodiment, there are various other aspects. For example, it is desirable that the mounting position of the support arm 24 of the guide roller 20 can be adjusted as appropriate depending on the width of the passage S. Moreover, a small motor may be mounted as a drive source in place of the battery 10. Further, the mounting direction of the spray pipe 15 is not limited to the vertical direction, and may be appropriately switched to the horizontal direction when the width of the ridge L is wide. Furthermore, if there is any obstacle, it may be detected in advance or a separate switch may be provided to stop the operation. Further, even if the passage S is not made of concrete or the like and there is no side wall B, these greenhouses H can be sufficiently handled by installing two relatively inexpensive pipes or the like so as to abut the guide rollers 20. Although the present invention has been mainly described for use in a greenhouse, it can also be used outdoors in cultivated land.

<<Effects of the invention>> The present invention has the structure described above, and the drug W
It is equipped with various equipment essential for the spraying work, a traveling device 19, and a control device 27, and also uses guide rollers 20 as a means for regulating the traveling direction, so that it can self-propel within the greenhouse H etc. and spray chemicals. It can be done reliably. In particular, in the case of the present invention, at least four wheels 22 are provided so that the device 1 can move roughly straight along the furrow, which is the traveling position, and furthermore, when the device 1 approaches excessively the side wall of the furrow during traveling, In order to correct this, at least four guide rollers 20 extending laterally are also provided, so that the vehicle can travel more reliably within the greenhouse H and the like.

Furthermore, the present invention does not require any costly accessory equipment for the greenhouse H, and therefore can be fully introduced even to small-scale farmers, and has extremely high utility value from an industrial perspective.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the self-propelled chemical spraying device of the present invention in use, FIG. 2 is a side view of the same, FIG. 3 is a front view of the same, and FIG. 4 is a perspective view showing the running state. 1...Self-propelled chemical spraying device, 3...Machine frame, 4...
...Base, 5...Support frame, 6...Handle, 8...
...Charging lid, 9...Clamp, 10...Battery,
11... Supply pipe, 12... Pressure feeding pipe, 13... Pressure gauge, 14... Pressure feeding port, 15... Spraying pipe, 16...
Pressure feed hose, 17... nozzle, 19... traveling device, 20... guide roller, 21... running motor, 22... wheel, 23... switch, 24...
Support arm, 25... Hand switch, 26... Operation box, 27... Control device, A... Crop, B
...Side wall, H...greenhouse, L...ridge, M...motor, P...pump, S...passage, T...chemical tank, W...medicine.

Claims (1)

[Scope of utility model registration request] In an apparatus for spraying chemicals on crops while moving, a machine frame equipped with a self-propelled traveling device is equipped with a chemical tank, a pump, and a spray pipe, and the wheels constituting the traveling device are disposed at least forward and backward below the machine frame. A self-propelled chemical spraying device characterized in that it has four wheels on the left and right sides, and is further provided with at least four guide rollers on the sides of the machine frame in the vicinity of the wheels, which come into contact with the side walls of the ridges, etc.