JPH09275876A - Spraying unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a spraying unit for applying an agrochemical to the fields, mounted with an atomizer so as to direct the extended line of liquid agrochemical application downward as compared to the undercarriages of a helicopter to prevent an applied liquid agrochemical from dripping as large-sized droplets at the undercarriages. SOLUTION: This spraying unit is designed to conduct an aerial application of a liquid agrochemical in a tank 7 by an atomizer 35 from a helicopter mounted with a pest controlling tank 7 and flying by wireless control. The atomizer 35 subject to position change between application position and housing position on response to the falling or raising of an arm 34 is set up so as to direct the extended line of liquid agrochemical application downward as compared to the undercarriages 4 of the helicopter, and the upper face C of liquid agrochemical application from the atomizer 35 is situated lower than the undercarriages 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray device for a remote-controlled helicopter used for spraying chemicals in a field.

[0002]

Conventionally, there is a technique of atomizing and spraying a liquid agent by providing an atomizer, but there is a problem that the liquid agent sprayed from the atomizer hits the leg of the helicopter and drops as a large water drop. there were.

[0003]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a remote control helicopter is equipped with a control tank and an atomizer for spraying the liquid agent in the tank is provided with an atomizer. The helicopter is equipped with an atomizer so that it is located below the leg, and the liquid sprayed from the atomizer does not splash onto the lower part of the leg and the liquid does not hit the leg. It is possible to eliminate the problem that the liquid agent adheres to and becomes large water droplets and drops.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a front explanatory view of a helicopter, FIG.
Is a side view of the helicopter. In the figure, (A) is a helicopter for unmanned flight by remote control. The main rotor (1) and the stabilizer (2) are attached to the helicopter (A).
It is provided on the upper side of the body (3) and the leg body (4) is fixed to the lower side of the body (3). A tail rotor (6) is provided at the rear end of the tail boom (5) on the rear side of the fuselage (3), and a fertilizer application tank (7) is fixed below the fuselage (3). The liquid (B) is sprayed in the air.

Further, an engine (9) and a transmission case (10) are mounted inside the body (3) via a main frame (8), and a muffler (11) and a fuel tank (12) are arranged. The engine (9) is started by a manual operation of pulling a lever, the main rotor (1) and the tail rotor (6) are driven by the engine (9), and a radio control transmitter (not shown) is operated by the operator at hand. To fly the helicopter (A). In addition, in FIG.
3) is a receiver for controlling the helicopter (A), and (14) is a monitor light.

Further, FIGS. 1, 3, 4, 5, 6,
As shown in FIG. 7, the receiving frames (16) and (17) are attached to the bolts (18) and (18) at the connecting portion between the main body (8) and the leaf spring support columns (15) (15) to which the legs (4) are attached.
The front and rear support plates (20) and (21) are fixed and fixed to the receiving frames (16) and (17) via the knob bolts (19) and (19).
To be detachably fixed. Further, the pest control frame (22) is fixed to the front support plate (20), the left and right pest control pumps (23) and (24) are attached to the lower surface side of the pest control frame (22), and the front and rear support plates (20) and (21) are buffered. Rubber (25) (2
The front and rear parts of the control tank (7) are connected via 5). Also, the left and right inlets (27) and (27) having the openable and closable caps (26) (26) are symmetrically connected to both sides of the pest control tank (7), and the chemical liquid movement regulating plate ( 28) Provided, even if the helicopter (A) is tilted to the left or right, the liquid agent (B) such as fertilizer or chemical solution inside the tank (7) moves toward the input port (27), and the center of gravity of the helicopter (A) moves left or right. It is configured to prevent this.

Further, the control tank (7) and the charging port (27) are integrally formed by blow molding.
As described above, the chemical liquid movement restricting plate (28) is formed of an elastic body, and locking projections (29) ... Are integrally formed on the charging port (27), and the recesses (3) of the restricting plate (28) ( 28
The operator takes a picture of a) ... by hand and transforms it, and the regulation plate (28)
Are engaged with and disengaged from the locking projections (29). The regulation plate (28) may be formed of a hard plate material.

As shown in FIGS. 3 and 6, the charging port (2
7) A step (27a) is formed inside the opening, and the cap (2
6) is opened to feed the liquid agent (B) to the step portion (27a). The step (27a) is used as a mark to introduce the liquid agent (B) so that an appropriate amount of the liquid agent (B) can be replenished. ing.

Further, a square tubular base frame (30) is fixed to the front support plate (20), and an arm substrate (32) is rotatably connected to the base frame (30) via a fulcrum shaft (31). , The arm substrate (32) is attached via the long hole (33) and the set screw (34) so that the angle can be freely changed,
The base end of the round pipe atomizer arm (34) is fixed to the arm substrate (32), and the atomizer (35) for spraying the liquid agent (B) is attached to the tip of the atomizer arm (34) with a stop bolt (36) which can be freely changed in angle. Install through.

Then, as shown in FIG. 1, the atomizer arm (34) is laid down substantially horizontally and extended to the lateral side of the body (3), and the atomizer arm (34) is erected substantially vertically to stand up to the body. The support position of the atomizer (35) can be changed to the storage position in which the atomizer (35) is extended above the portion (3), and the helicopter (A) can be transported and stored by compactly folding the atomizer arm (34). In addition, when a helicopter (A) lands with a servo motor (not shown) for undulating the atomizer arm (34) by remote operation, the atomizer arm (34) is moved in the upright direction by servo motor control when landing in a posture in which the helicopter (A) is tilted to the left and right. Adjust the angle to prevent the atomizer (35) from hitting the ground and being damaged.

Further, as is clear from FIG. 1, a remote control helicopter (A) is equipped with a control tank (7) and an atomizer (35) for spraying the liquid agent (B) in the tank (7) in the air. In the provided spraying device, the atomizer (35) is attached so that the liquid agent (B) spraying extension line of the atomizer (35) is below the leg body (4) of the helicopter (A), and the liquidizer spraying of the atomizer (35) is performed. The upper surface (C) is located lower than the leg body (4), the liquid agent (B) sprayed from the atomizer (35) is scattered to a portion lower than the leg body (4), and the liquid agent (B) is spread on the leg body (4). ), The liquid agent (B) adheres to the leg body (4) and drops into large water droplets unlike the conventional case. Moreover, the conventional problem that the liquid (B) attached to the leg (4) dries and the leg (4) becomes dirty can be eliminated.

Further, as shown in FIG. 9, a main body frame (37) is attached to the tip of the atomizer arm (34) through a set bolt (36) so that the angle can be adjusted, and an electric motor (fixed) to the frame (37). 38) and a spreading plate (4) fixed to the output shaft (39) of the motor (38).
0) and the spreading plate (4) fixed to the frame (37).
0) A spray cover (41) which is closed to the upper surface side, and an injection nozzle (40a) which penetrates the cover (41) and supplies the liquid agent (B) to the central portion of the upper surface of the spray plate (40). Prepare for 35). Then, the motor (38) is electrically connected to a battery (not shown) of the helicopter (A) through a power supply line (42) which is inserted into the inner hole of the atomizer arm (34), and the inside of the atomizer arm (34) is also connected. The injection nozzle (42) is communicatively connected to the pest control pump (23) through a liquid distribution pipe (43) which is inserted through the hole.

As described above, by rotating the atomizer (35) around the stop bolt (36) to change the mounting angle, the mounting angle of the atomizer arm (34) is kept substantially constant and the atomizer (35) is maintained. Of the atomizer (3) can be changed, for example, the liquid agent (B) can be prevented from being sprayed to the adjacent fields, and the atomizer (3)
The spray width of 5) can be corrected and the spray width of the liquid agent (B) can be prevented by adjusting the spray width of the liquid agent (B) in the final step. A servomotor (not shown) operated by remote control is connected between the atomizer arm (34) and the body frame (37), and the atomizer (35) is rotated around the stop bolt (36) by remote control of the servomotor. It is also possible to correct the spraying direction.

Further, the atomizer (35) is provided with the electric motor (38), and the spray plate (40) of the atomizer (35) is driven independently of the main rotor (1) of the helicopter (A). , The spreading plate (40) and the control pump (23) with the main rotor (1) stopped
, The cleaning tank is filled with water for cleaning, and the pump (23), the liquid distribution pipe (43), the spray plate (40), etc. are washed with water to discharge the residual liquid agent (B). By stopping (1), the washing and cleaning can be performed safely, and the power supply line (42) and the liquid distribution pipe (4)
3) is inserted into the atomizer arm (34),
The wire (42) and the pipe (43) are not damaged by being caught on plants or the like.

Further, as shown in FIGS. 5 and 10, a pipe cap (7a) is attached to the lower surface of the control tank (7),
A suction pipe (44) (44) and a return pipe (45) (45) between the left and right pest control pumps (23) (23) and the cap (7a).
The liquid agent (B) in the tank (7) is sucked into the pump (23) through the suction pipe (44), and the remainder of the sucked liquid agent (B) is returned to the tank (7) by the return pipe (45). Liquid agent (B) and a joining pipe (46) for returning the liquid through the pump and joining the liquid agent (B) discharged from each pump (23) (23).
Check valve that opens when the pressure exceeds a certain level (4
7) Servo motor (49) is provided between the flow dividing pipes (48) connecting the left and right liquid distribution pipes (43) and (43) via (47).
A ball valve (50) for opening and closing is provided, and after joining the liquid agent (B) from each pump (23) (23), the check valves (47) and (47) are connected to the left and right atomizers (47) via the valve (50). 35) to be sent to (35),
When the ball valve (50) is closed, the valve (5
0) and the check valve (47) in a closed state (40)
The liquid agent (B) is enclosed therein, and by closing the valve (50), the liquid agent (B) in the flow dividing pipe (48) can be prevented from dropping from the atomizer (35). An electromagnetic solenoid may be used instead of the servo motor (49).

Further, as shown in FIGS. 11 and 12, the inlet 27 can be provided only on the left side of the fertilizer application tank 7, and the left and right pest control pumps 23 and 23 can be offset forward and backward. Attach to the control frame (22),
By partially wrapping the offset pumps (23) (23) partly in the left-right width direction, the pumps (2
3) (23) can be installed compactly, and the capacity can be increased by the two pumps (23) (23) compared to a single pump structure, so that the liquid delivery amount can be easily increased.

Further, as shown in FIG. 13, a drip nozzle (51) for drip-spraying the liquid agent (B) is provided, and a pump (2) is provided.
3) The liquid agent (B) in the tank (7) to be delivered by 3) can be dropped in a drip form to spray the liquid agent (B) in a narrow area. For example, the herbicidal liquid agent (B) for paddy fields can be dropped on the paddy fields, It prevents the liquid agent (B) from being sprayed on the ridges or banks, and the muffler (1) is attached to the body (3) of the helicopter (A).
1) is provided, and the muffler (11) has left and right exhaust pipes (52).
(52) is attached, the dropping nozzle (51) is arranged between the left and right exhaust pipes (52) and (52), and the liquid agent (B) from the dropping nozzle (51) is discharged by the exhaust air from the exhaust pipe (52). ) Is dropped downward and the liquid agent (B) dropped due to the turbulent airflow generated by the main rotor (1) does not drop to the proper position, eliminating the conventional problem.

[0018]

As is apparent from the above embodiments, the present invention is an atomizer in which a control tank (7) is mounted on a remote control helicopter (A) and the liquid agent (B) in the tank (7) is sprayed in the air. In the spraying device provided with (35), the atomizer (35) is attached so that the liquid agent (B) dispersion extension line of the atomizer (35) is lower than the leg body (4) of the helicopter (A), The liquid agent (B) sprayed from the atomizer (35) does not scatter to a lower portion than the leg body (4), and the liquid agent (B) does not hit the leg body (4). It is possible to eliminate the problem that the liquid agent (B) adheres to and becomes large water droplets and drops.

[Brief description of drawings]

FIG. 1 is a front explanatory view of a helicopter.

FIG. 2 is a side view of a helicopter.

FIG. 3 is a front view of a control tank part.

FIG. 4 is a side view of the same.

FIG. 5 is an enlarged view of the same.

FIG. 6 is a plan view of the same.

FIG. 7 is an enlarged view of FIG.

FIG. 8 is a sectional view of the same oil.

FIG. 9 is an explanatory diagram of an atomizer.

FIG. 10 is an explanatory diagram of liquid agent piping.

FIG. 11 is a front view of a control tank portion showing another embodiment.

FIG. 12 is a plan view of the same.

FIG. 13 is a front explanatory view of a helicopter provided with a dropping nozzle.

[Explanation of symbols]

 (A) Helicopter (B) Liquid (4) Leg (7) Control tank (35) Atomizer

Claims (1)

[Claims] 1. A remote control helicopter equipped with a control tank and an atomizer for spraying the liquid agent in the tank in an atomizer, wherein the liquid agent spraying extension line of the atomizer is lower than the helicopter leg. An atomizer is attached to the atomizer.