JPH0418679Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a control device for a power sprayer that sprays a liquid agent such as a liquid in the form of a mist onto agricultural crops under high pressure.

``Prior Art'' There is a known method for remotely controlling each operating section of a power sprayer body using radio control or the like.

``Problems that the invention seeks to solve'' However, in the case of this type of radio control, it is difficult to operate reliably due to a drop in the reception level of the radio waves and interference caused by obstacles, especially when the radio waves are in the same house. Moreover, when a plurality of such power sprayers are operating at close range, not only is the influence large, but additional antennas and the like must be installed, making it difficult to make the system more compact.

``Means for Solving the Problems'' Therefore, the present invention provides a remote control member that operates each actuator of this machine in the nozzle part that sprays the liquid sent out from the spray machine main body, and combines these parts with this machine. The operating member is electrically connected to each actuator portion through at least one of a connecting hose interposed between the nozzle portions or a liquid agent in the connecting hose.

``Effect'' According to the present invention, by using the hose or the liquid in the hose as a medium to perform the operation using, for example, ultrasonic waves, it is possible to reduce the reception level due to obstacles and interference, etc., just like with wired cables. Reliable remote control is possible with no travel, and even if multiple power sprayers are operating in the same house or close together, there is no mutual influence, and there is no need to install separate antennas, making the system more compact. It is something that can be achieved.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is an explanatory diagram of the main parts of the power sprayer according to the present invention, and Fig. 2 is an overall external view. It is of a portable type and is configured to be used together with a chemical solution tank (not shown).

The pump section 2 includes a pulley 5 that is interlocked and connected to the output shaft of the engine 1 via a V-belt 4, a crankcase 6 that converts the rotational output transmitted via the pulley 5 into a reciprocating output of a plunger, and the plunger. It consists of a plunger pump 7 that suctions and pumps the chemical liquid through reciprocating motion, and an air chamber 9 having a pressure regulator 8 is integrally connected to the pump 7, and a hose 1 is connected to the discharge port 9a of the plunger pump 7.
0 is connected.

Further, a winding device 13, which is a reel for the hose 10, is mounted on the frame 11 of the power sprayer A via an intermediate base 12, and this winding device 13 is attached to a support frame 14 with a drum shaft. 15
The hose winding drum 16 is rotatably mounted on the shaft via the hose winding drum 16.

The drum shaft 15 is interlocked and connected to the output shaft 17 of the power sprayer A via a power transmission mechanism B, and the output shaft 17 is connected to the first intermediate shaft via a pair of worm gears 18 and 19. 20
In addition, the first intermediate shaft 20 is connected to the sprockets 21 and 2.
2 and chain 23 to the second intermediate shaft 24, and the second intermediate shaft 24 is connected to a pair of bevel gears 25, 2.
A reel clutch 27 is connected to the first intermediate shaft 20 and is operatively connected to the drum shaft 15 via a reel clutch 27 through a reel clutch 27 which appropriately cuts off the drive to the sprocket 21.
The clutch 27 is solenoid 28 that the clutch 27 is turned on and off. During the input operation, the drum 16 is rotated by the rotational force of the output shaft 17 to wind up the hose 10 that has been fed out.

29 is a slide shaft 3 attached to the frame 17.
This is a hose winding guide that is attached so as to be slidable left and right through the hose.

The nozzle 31, which is a spout section attached to the tip of the hose 10, has a tip 32, and a ceramic microphone-shaped oscillator 33 is provided on the main body of the nozzle 31 on the proximal end side of the tip 32, with an insulating member 34 interposed therebetween. At the same time, a ceramic microphone type receiver 36 is provided via an insulating member 37 to a hose fitting 35 for attaching the base end of the hose 10 to the pump 7 side. An ultrasonic oscillation circuit 38 is connected to the oscillator 33, and an accelerator switch 40 for starting and stopping the engine, a reel switch 41 for turning on the reel clutch 27, and the pump 7 are connected between the circuit 38 and a power source 39. A liquid supply valve changeover switch 7a for stopping the delivery of chemical liquid from the liquid supply valve and a pressure adjustment dial switch 42 of the pressure adjustment device 8 are interposed, and the respective ultrasonic waves are controlled based on the operation of these switches 40, 41, 7a, and A signal is outputted from the oscillator 33 and transmitted to the receiver 36 using the chemical liquid in the hose 10 as a medium.

On the other hand, the receiver 36 is connected to a control circuit 44 via an ultrasonic receiving circuit 43, and includes an accelerator solenoid 45 for turning on the accelerator of the engine 1, and a reel clutch solenoid 46 for turning on the reel clutch 27. Then, the liquid medicine is discharged from the discharge port 9a by adjusting the spring pressure of the pressure regulating valve in the pressure regulating device 8 and the liquid supply valve operating solenoid 7b which returns the chemical solution sent out from the pump 7 to the tank and stops its delivery. The control circuit 44 includes a pressure regulating motor 47 that changes the pressure, and transmits an ultrasonic signal oscillated by the oscillator 33 via the oscillation circuit 38 based on the operation of each of the switches 40, 41, 7a, and 42 into the hose 10. The solenoid 45, 46, 7b and the pressure regulating motor 47 are operated by receiving the chemical liquid into the receiver 36 and inputting it into the control circuit 44 via the receiving circuit 43. In other words, each of the switches 40, 41, 7a,
42 is incorporated, and each of these switches 40,
41, 7a, and 42 are configured to start and stop the engine 1 of the main body of the sprayer A, drive the winding device 13 to take up the winding device, stop sending out the chemical solution, or adjust the discharge pressure of the chemical solution, respectively.

The present embodiment is constructed as described above, and when spraying the chemical solution, the clutch 27 is kept in the disconnected state, so that the hose 10 can be drawn out for a length until it reaches the predetermined spraying position due to the free rotation of the drum 16. Minutes will be held. During the spraying operation at such a spraying position, each operation of the accelerator solenoid 45, the reel clutch solenoid 46, the liquid feeding valve operation solenoid 7b, and the pressure regulating motor 47, which are the actuator parts of the main body of the sprayer A, is controlled by the operation provided on the nozzle 31. Each switch 40, 4 on the panel 48
This is performed by operations 1, 7a, and 42, which not only improves work efficiency since there is no need to return to machine A each time, but also improves safety because it allows emergency response.

In addition, in the above-described embodiment, a configuration was shown in which the ultrasonic output is transmitted to the main unit A side using the medicinal liquid in the hose 10 as a medium, but by forming the hose 10 with an ultrasonic conductor, the hose 10 itself can be transmitted. It may be configured to transmit ultrasonic output as a medium, and in this case, it can be used without any problem even in a state where there is no chemical solution, such as at the start of work.

Further, since the ceramic microphones used in the oscillation and receivers 33 and 36 can be used for both oscillation and reception, as shown in FIG. The engine abnormality detection circuit 50 for detecting the abnormally high temperature of the oscillator 3 is connected to the oscillator 3.
3 is connected to an alarm device 52 that detects an abnormally high temperature of the engine 1 via an ultrasonic receiving circuit 51, and contrary to the above, an abnormality on the side of the machine A is transmitted to the nozzle 31 side and the operator is notified. It's good as well.

"Effects of the Invention" As is clear from the above embodiments, the present invention has the advantage that each actuator part 45,
A remote control member 48 is provided to operate the actuators 6, 47, and 7b. Since the parts 45, 46, 47, and 7b are electrically connected, for example, an ultrasonic operation signal from the nozzle part 31 is transmitted to the machine A side using the hose 10 or the liquid agent in the hose 10 as a medium to remove obstacles such as obstacles. It enables reliable remote control similar to wired operation without lowering the reception level or interference due to interference, even when using a similar power sprayer A in the same house or at a close distance.
Even if multiple units are in operation, there is no mutual influence, and the system can be made more compact by eliminating the need for separate receiving and oscillating equipment such as antennas.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the main parts, FIG. 2 is an explanatory diagram of the overall appearance, and FIG. 3 is an explanatory diagram showing another modified structural example. 10... Hose, 31... Spout part, 45, 4
6, 47, 7b... actuator section, 48...
Remote control member, A... sprayer.

Claims (1)

[Scope of utility model registration request] A remote control member for operating each actuator of the machine is installed in the nozzle part that sprays the liquid sent out from the spray machine main body, and at least one of the connection hose interposed between the machine and the nozzle part or the liquid in the connection hose is provided. A control device for a power sprayer, characterized in that the operating member is electrically connected to each actuator section through.