JPH0739457U - Chemical sprayer - Google Patents

Abstract

(57) [Summary] [Purpose] A chemical spraying machine that has the effect of being able to discharge chemicals while freely traveling on the surface of water or mud by remote control and at the same time not requiring the sprayer to enter the water. For the purpose of providing. [Structure] An engine, a propeller, a ladder, and a chemical tank are mounted on the upper part of the hull, and chemicals such as pesticides can be sprayed while traveling on the water surface by wireless operation.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention can spray chemical liquids such as pesticides, fertilizers, coagulants, antifouling agents, etc. while traveling on the surface of water or mud by wireless operation, and can further control the discharge speed of the chemical liquid arbitrarily. The present invention relates to a liquid medicine spraying machine configured so as to be capable.

[0002]

[Prior art]

 Conventional methods for spraying liquid chemicals onto the surface of water such as paddy fields, ponds, and canals include the method of directly dropping the chemical solution into the water, and the method of using a human-powered or backpack type fog machine or a power method. A hose traction spray method using a sprayer is usually used. Recently, some spraying methods using manned or unmanned helicopters have been implemented.

[0003]

[Problems to be solved by the device]

 The conventional techniques described above have the following problems. Among the methods described in the prior art, methods other than helicopter spraying usually have slow spraying speeds because the sprayer needs to hold the chemical solution and spray hose to enter the water system, and work in deep water. Is difficult. Also, the sprayer may be exposed to the drug. Furthermore, helicopter spraying has a high spraying speed and is not affected by water depth, but it requires a high level of skill in its operation, and it requires multiple assistants to be placed in the surrounding area, making it impossible to work alone. It is possible. Moreover, since the atomized drug solution is sprayed in the air, the drug may be scattered to the surrounding environment other than the target object.

The present application has been made in view of such problems of the conventional technique, and an object of the present application is to provide the following things. The chemical sprayer is intended to provide a labor-saving chemical sprayer that allows the sprayer to work independently without entering the water system and has a high spraying speed.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is as follows. In other words, in the case of the present application, an engine, propeller, ladder, and chemical liquid tank are mounted on the upper part of the hull, and chemical liquids such as pesticides, fertilizers, coagulants, and antifouling agents are sprayed while traveling on the water surface or mud surface by wireless operation. It is a chemical sprayer that is configured to be able to. In this case, the muffler of the engine and the chemical liquid tank may be connected by a discharge pressure pipe, and a part of the exhaust gas may be guided to the chemical liquid tank to pressurize the inside of the chemical liquid tank. In addition, it has a structure that connects the muffler of the engine and the chemical liquid tank with an exhaust pressure pipe and guides a part of the exhaust gas to the chemical liquid tank, and adjusts the pressure in the chemical liquid tank according to the engine speed. Can be configured to adjust the chemical liquid discharge amount. Further, a chemical liquid valve capable of opening / closing and adjusting the opening degree by wireless operation can be attached to a part of the chemical liquid induction hose connected to the discharge port of the chemical liquid tank.

[0006]

【Example】

 Examples will be described with reference to the drawings. 1 is a chemical spraying machine of the present invention. Reference numeral 2 denotes a hull which is made entirely of a synthetic resin such as styrofoam and has a flat shape. A hollow portion 2A elongated in the front-rear direction is formed in the center of the upper surface, and a machine room 2B is formed behind the hull, and The machine room 2B is provided with a lid 2B1 which can be freely opened and closed. A case 3 is supported above the recess 2A through left and right supporting legs 3A planted in the recess, and an engine 4 is housed in this case, and a front and rear direction of the engine 4 is accommodated in the front. A working propeller 5 is attached. 4A is a muffler.

The propeller 5 is covered with a safety cover 5A. The safety cover is composed of a circular ring-shaped frame 5A1 located on the outer periphery of the propeller and a mesh 5A2 stretched on the front and rear surfaces of the ring-shaped frame. It is configured. Reference numeral 6 is a chemical liquid tank arranged at the tip of the recess 2A, and 7D is two chemical liquid induction hoses drawn from the lower rear portion of the chemical liquid tank. These chemical liquid induction hoses penetrate the bottom 2C of the hull. It is opened diagonally backward. 6A is a cap of the chemical solution supply port.

Reference numeral 8 denotes a rudder arranged on the upper rear surface of the hull, and the left and right parallel ladder units 8A, 8A are rotatably supported in the left and right directions on a plane with an axis projecting from above and below the front of the ladder unit as a fulcrum. Has been done. That is, the upper shaft is pivotally attached to the arm 3B pulled out from the case 3, and the lower shaft is loosely fitted in the receiving hole formed in the hull. The ladder units 8A and 8A are connected by a connecting link 8B.

The machine room 2B accommodates a receiver 9, a battery 9A, and a servo unit 10, and the servo unit includes an engine servo 10A and a ladder servo 10B. The engine servo 10A is connected to the engine by a throttle cable 10A1, and the ladder servo 10B is connected to the ladder by a connecting rod 10B1. An exhaust pressure pipe 4A1 is drawn out from the muffler 4A, and the tip of the exhaust pressure pipe is connected to the top surface of the chemical liquid tank in a communicating state. In the figure, 12 is an antenna.

Reference numeral 11 is a chemical liquid spraying machine of another embodiment. Reference numeral 2 denotes a hull which is made entirely of a synthetic resin such as styrofoam and has a flat shape. A hollow portion 2A elongated in the front-rear direction is formed in the center of the upper surface, and a machine room 2B is formed behind the hull, and The machine room 2B is provided with a lid 2B1 which can be freely opened and closed. A case 3 is supported above the recess 2A through left and right supporting legs 3A planted in the recess, and an engine 4 is housed in this case, and a front and rear direction of the engine 4 is accommodated in the front. A working propeller 5 is attached. 4A is a muffler.

The propeller 5 is covered with a safety cover 5A, which is composed of a circular ring-shaped frame 5A1 located on the outer periphery of the propeller and a mesh 5A2 stretched over the rear surface of the ring frame. ing. Reference numeral 6 denotes a chemical liquid tank disposed at the tip of the recess 2A, and reference numeral 7 denotes a chemical valve disposed at the center of the recess 2A. Two chemical solution guiding hoses 7A, 7A are drawn out from the chemical solution tank, pass through the interior of the chemical solution valve, penetrate the bottom portion 2C of the hull, and are opened obliquely rearward. 6A is a cap for the chemical supply port.

As shown in FIG. 8, the chemical liquid valve 7 has a box-shaped case 7B, projecting portions 7B1 projecting on the inner surfaces of the left and right walls of the case, and two pipes arranged in the front-back direction inside the case. It is composed of an elastic chemical liquid guiding hose 7A and an opening / closing cam 7C rotatably arranged at the center between these two chemical liquid guiding hoses 7A. The opening / closing cam is guided by a servo valve 10C for a chemical liquid valve which will be described later. When the state is orthogonal to the longitudinal direction of the hose 7A, the chemical liquid guiding hose is closed, and when the state is parallel to the longitudinal direction of the chemical liquid guiding hose 7A, the chemical liquid guiding hose is opened. Has been done. As a result, the opening / closing cam 7C can be rotated at an arbitrary angle from the orthogonal state to the parallel state by the chemical liquid valve servo 10C, whereby the opening degree of the chemical liquid guiding hose 7A can be arbitrarily adjusted.

Reference numeral 8 denotes a rudder disposed on the rear upper surface of the hull. The left and right parallel ladder units 8A, 8A are rotatably supported in the left and right directions on a plane with a shaft projecting vertically upward and forward of the ladder unit as a fulcrum. Has been done. That is, the upper shaft is pivotally attached to the arm 3B pulled out from the case 3, and the lower shaft is loosely fitted in the receiving hole formed in the hull. The ladder units 8A and 8A are connected by a connecting link 8B.

A receiver 9, a battery 9A, and a servo unit 10 are housed in the machine room 2B, and the servo unit includes an engine servo 10A, a ladder servo 10B, and a chemical liquid valve servo 10C. The engine servo 10A is connected to the engine by a throttle cable 10A1, the ladder servo 10B is connected to the ladder by a connecting rod 10B1, and the chemical liquid valve servo 10C is connected to a chemical liquid valve by a connecting rod 10C1. An exhaust pressure pipe 4A1 is drawn out from the muffler 4A, and the tip of the exhaust pressure pipe is connected to the top surface of the chemical liquid tank in a communicating state. In the figure, 12 is an antenna.

In order to achieve the above object, the chemical liquid spraying machine of the present invention has the following structure. Hull material Foam polystyrene (FRP cloth tension) Dimensions Length x width x height: 148 x 68 x 58 cm Weight empty 13.6 kg Engine type 2 cycle glow engine Displacement 35.0 cc Rotation speed 10,000 rpm (MAX) Output 4 ．1PS (MAX) Starting method Manual or electric starter Fuel type Alcohol fuel for model Fuel tank Capacity 1.0L Propeller length 19.5cm Number of sheets 2 Ladder length × width 13 × 29cm Number of blades 2 Chemical liquid tank Material Translucent polyethylene resin Capacity 5.0L Chemical liquid induction hose Inner diameter 8mm Length 27cm Number of tubes 2 Discharge control mechanism Muffler pressure method (3mm inner diameter connecting tube) and valve opening / closing method (remote control) are used in combination Running speed 250m / min

The test examples are as follows. 5 L of a flowable agent (specific gravity: 1.06, viscosity coefficient: 1,120 cps (18 ° C.)) was filled in a chemical liquid tank of the chemical liquid spraying machine described in the example, and the chemical liquid was discharged at an engine speed of 1500 rpm or an engine stopped state. An experiment was conducted. The results are shown in Table 1.

[0017]

[Table 1]

Next, the flowable agent was sprayed in the paddy field of the experiment. Each of the two paddy fields 13 used in the test had a width of 30 m, a length of 150 m, and an area of 4,500 m ² , one of which was a chemical spraying machine and one of which was manually sprayed. The results are shown in Table 2. FIG. 11 shows a spray path of the chemical spraying machine, and FIG. 12 shows a spray path of manual spraying.

[0019]

[Table 2]

The operation will be described together with the effects.

[0021]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. 1. Since it is possible to discharge the chemical liquid while freely traveling on the water surface or the mud surface by remote control, it is possible to perform spraying work alone without the need for an assistant. 2. Since the sprayer does not need to enter the water, it can be sprayed regardless of the depth of the water or the scaffolding. 3. As shown in the test example, the spraying efficiency was significantly improved. 4. The chemical pump is no longer needed because of the structure that guides the exhaust gas to the chemical tank. As a result, it has become possible to reduce the weight of the hull and reduce manufacturing costs. 5. Since the pressure inside the chemical tank increases or decreases according to the engine speed, the discharge rate of the chemical can be automatically adjusted according to the traveling speed. 6. For those equipped with a chemical valve, it is possible to adjust the discharge rate according to the viscosity of the chemical. 7. Even when traveling upwind, it is possible to finely adjust the discharge amount per distance, and to prevent leakage of the chemical liquid at the time of stoppage by setting the opening to zero.

[Brief description of drawings]

FIG. 1 is a rear perspective view of the present invention.

FIG. 2 is a front view of the above.

FIG. 3 is a perspective view with a part cut away.

FIG. 4 is a schematic plan view centering on a servo.

FIG. 5 is a schematic plan view centering on the exhaust pressure pipe.

FIG. 6 is a perspective view of the whole of another embodiment as viewed from the back side.

FIG. 7 is a perspective view with a part cut away.

FIG. 8 is a cross-sectional view of a chemical liquid valve.

FIG. 9 is a schematic plan view centering on a servo.

FIG. 10 is a schematic plan view centering on the exhaust pressure pipe.

FIG. 11 is a schematic plan view illustrating a spray path of the chemical sprayer.

FIG. 12 is a schematic plan view illustrating a spraying path of manual spraying.

[Explanation of symbols]

 1 chemical spraying machine 2 hull 3 case 4 engine 4A muffler 4A1 exhaust pressure pipe 5 propeller 6 chemicals tank 7 chemicals valve 7A, 7D chemicals induction hose 8 rudder 9 receiver 10 servo section 11 chemicals sprayer

Claims (4)

[Scope of utility model registration request] 1. An engine, a propeller, a ladder, and a chemical tank are mounted on the upper part of a hull, and chemical solutions such as pesticides, fertilizers, coagulants, and antifoulants are sprayed while traveling on the surface of water or mud by wireless operation. A chemical sprayer characterized by being configured so that 2. The chemical liquid tank according to claim 1, wherein the muffler of the engine and the chemical liquid tank are connected by an exhaust pressure pipe, and a part of the exhaust gas is guided to the chemical liquid tank to pressurize the inside of the chemical liquid tank. Chemical sprayer. 3. A structure in which a muffler of an engine and a chemical liquid tank are connected by an exhaust pressure pipe to guide a part of exhaust gas to the chemical liquid tank, and the pressure in the chemical liquid tank is adjusted according to the engine speed. The chemical solution sprayer according to claim 1, wherein the chemical solution discharge rate is adjusted accordingly. 4. The chemical liquid spraying machine according to claim 3, wherein a chemical liquid valve which can be opened / closed and adjusted by wireless operation is attached to a part of the chemical liquid induction hose connected to the discharge port of the chemical liquid tank.