JPH10156243A - Speed sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive reduction of pressure drop and to eliminate such danger that an operator is exposed to liquid chemicals by damage of a pipeline in relation to the pipeline of liquid chemicals in a speed sprayer. SOLUTION: The speed sprayer is equipped with a driver's seat part 2, a liquid chemical tank 3, a motor 7, a motor chamber 4 provided with a pump 8 for spray which is driven by the motor 7 and forcefeeds liquid chemicals to a spout head part 5, the above spout head part 5 in which a nozzle group 17 is faced and a fan part 6 toward the rear from the front on a self-traveling dolly 1. A pressure regulator 19 and solenoid on-off valves 20 are interposed between the above-nozzle group 17 and the pump 8 for spray. A pressure regulation switch 25 capable of regulating pressure by the pressure regulator 19 and a main open/close switch 27 of the solenoid on-off valves 20 are provided in the driver's seat part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical pipe for a speed sprayer, and more particularly to a proposal for reducing pressure loss and eliminating the risk of an operator being exposed to a chemical due to a pipe failure or the like.

[0002]

2. Description of the Related Art In FIG. 8, a self-propelled truck 1 of a speed sprayer includes a driver's seat 2 from the front to the rear,
A chemical tank 3, a motor room 4, a jet head 5, and a blower unit 6 are provided.

An engine 7 as a prime mover and a spray pump 8 rotated by the engine 7 are arranged in a prime mover room 4 laid out behind the chemical solution tank 3. The discharge hose 9 derived from 8 is once connected to a water separator 11 installed on the side of the driver's seat 10 of the driver's seat 2.

As shown in FIG. 9, a main cock 12 for spraying, a branch pipe 13 to be connected to a nozzle of a jet head described later, and a cock 14 for spray provided on these branch pipes 13 are provided in the water separator 11. , A pressure regulating valve 15 is arranged so that an operator can open and close the cock and adjust the pressure in the driver's seat 10.

[0005] A plurality of discharge hoses 16 connected to the branch pipes 13 are communicated with nozzle groups 17 of the jet head 5, and the chemicals ejected from these nozzle groups 17 are not shown in a specific structure. The air is sprayed from the known blower unit 6 on the air flow.

That is, according to the conventional structure having the above-described structure, the chemical discharged from the rear of the chemical tank 3 enters the water diversion branch 11 at the front of the self-propelled vehicle 1, from which the self-propelled vehicle 1 Flow to the jetting head 5 at the rear, the piping resistance of the discharge hose 9 and the discharge hose 16 is large, causing a great pressure loss.

[0007] Further, since the liquid separator 11 is disposed immediately beside the driver's seat 10 and the chemical liquid flows, the operator is exposed to the chemical liquid in the event of an accident (damage due to hose deterioration, etc.). This is a security problem.

[0008]

SUMMARY OF THE INVENTION The present invention reduces pressure loss due to pipe resistance during chemical spraying, and minimizes the risk of an operator being exposed to chemicals such as agricultural chemicals due to damage to hoses. The present invention extends to providing a speed sprayer that can be eliminated.

[0009]

According to the speed sprayer of the present invention, the driver's seat (2), the chemical liquid tank (3), the motor ( 7) a motor chamber (4) provided with a spray pump (8) driven by the motor (7) and capable of pumping a chemical solution to a jet head (5), and the jet head facing a nozzle group (17). (5) In a speed sprayer having a blower section (6), a pressure regulator (19) and an electromagnetic on-off valve (20) are provided between the nozzle group (17) and the spray pump (8). A pressure adjusting switch (25) for adjusting the pressure by the pressure adjusting device (19) and a main open / close switch (27) for the electromagnetic on / off valve (20) are provided in the driver's seat (2). This allows the operator to stay in the driver's seat Those capable of controlling the desired chemical spraying work.

[0010] The speed sprayer according to claim 2 is
A pressure gauge (24) is provided at the driver's seat (2) according to claim 1, and a pressure transmitter (22) is interposed between the pressure gauge (24) and the spray pump (8). And a first pipe (21) and a second pipe (23) which enable the pressure transmitter (22) to communicate with the spray pump (8) and the pressure gauge (24). Piping (21,
23) is a configuration in which water and liquid feed are sealed as a pressure transmitting liquid, and is configured to eliminate the risk of exposure of the operator to the chemical liquid in the driver's seat.

[0011] The speed sprayer according to claim 3 is:
The nozzle group (1) facing the spray pump (8) and the jet head (5) by connecting the solenoid on-off valve (20) of the claim 1
7), and between the solenoid on-off valve (20) and the spray pump (8), which can be selectively communicated or recirculated to the chemical liquid tank (3). A main open / close switch (27) and a main open / close switch capable of controlling the main open / close valve (43) are provided on an operation panel (26) provided in the driver's seat portion (2). Around (27), the nozzle group (1
Nozzle switches (28a-28) in accordance with the arrangement of 7)
The configuration of the electric system mainly provided by d) is defined, and an operation panel for controlling the electric system is arranged in the driver's seat to facilitate the operation.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention is shown in FIG.
This will be described in detail with reference to FIG. In the drawing, the same or equivalent parts as those of the conventional structure described in FIG. 8 are denoted by the same reference numerals.

First, in the overall plan view shown in FIG. 1, a self-propelled truck 1 of a speed sprayer has a driver's seat 2, a chemical liquid tank 3, a motor room 4, a jet head 5, a blower unit from the front to the rear. 6 are provided, and these arrangements themselves are not different from the conventional example.

On the side of an engine 7 as a prime mover installed in a prime mover room 4 laid out behind the chemical liquid tank 3, a spray pump 8 rotationally driven by the engine 7 is provided. A discharge hose 18 derived from the spray pump 8 passes through a power regulator 19 as a pressure regulating device and an electric ball valve 20 as an electromagnetic opening / closing valve, which will be described in detail later, and reaches the jet head 5, where the nozzle group 1
Squirted from 7.

On the other hand, the pressure guided from the spray pump 8 through the first pipe 21 to the pressure joint kit 22 as a pressure transmitter is applied to the operation of the driver's seat 2 through the second pipe 23. The pressure is led to a pressure gauge 24 disposed in front of the seat 10, and a pressure adjusting switch 25 of the spray pump 8 is provided near the pressure gauge 24. The pipe 23 is filled with fresh water or antifreeze.

An operation panel 26 (FIG. 2) provided in front of the driver's seat 2 and provided with the pressure gauge 24 and the pressure adjustment switch 25 is provided with a main open / close switch 27 of a push button type. Toggle nozzle switches 28a, 28b, 28 for starting and stopping spraying of the upper left, upper right, lower left, and lower right nozzle groups 17 so as to surround the main open / close switch 27.
c and 28 d are provided, and an operation display lamp 29 of the spray pump 8, an operation display lamp 30 of a blower (not shown) of the blower unit 6, and a water meter 31 in the chemical liquid tank 3 are arranged.

The details of the pressure joint kit 22 are shown in FIG. In this figure, a piston 32 is provided between a pipe 21 from the spray pump 8 and a pipe 23 to the pressure gauge 24.
And a cylinder 3 for sliding the piston 32 in a watertight manner.
3 is provided to transmit the pressure from the spray pump 8 to the pressure gauge 24 via the piston 32.

Next, as shown in FIG. 4 and FIG.
And a discharge port 36, 37 (FIG. 5) to the electric ball valve 20 as an electromagnetic on-off valve. In FIG. 5, reference numeral 38 denotes a pressure regulating motor, and 39 denotes a gear. , 40 are pressure regulating valves, 41 is a cock motor, 42 is a link, and 43 is a three-way cock as a main open / close valve.

In these figures, the gear 39 is rotated by rotating the pressure adjusting motor 38, and the gear 39 is rotated.
The three-way cock 43 is operated via the link 42 by rotating the grip 45 of the pressure regulating valve 40 left and right with the rod 44 attached thereto and operating the cock motor 41. In the figure, reference numeral 46 denotes a spill port for returning to the chemical solution tank 3.

As shown in FIGS. 6 and 7, each of the electric ball valves 20 includes two electric ball valves.
7, 48, discharge ports 49, 50 to the nozzle group 17, and a supply port 51 from the power regulator 19.

In the above configuration, the power regulator 19 provided with the pressure regulating valve 40 and the three-way cock 43 passes from the spray pump 8 on the side of the engine 7 laid out behind the chemical tank 3 through the discharge hose 16. Inlet and discharge hoses 48 and 49, and the electric ball valve 2
Enter 0. The electric ball valve 20 passes through several discharge hoses 16, reaches the jet head 5, and is sprayed from the nozzle group 17. At this time, as described above, the spraying operation and the pressure adjusting operation are performed by the main open / close switch 27, the nozzle switches 28a to 28d, on the operation panel 26 provided in front of the driver's seat 10.
It can be performed by operating the pressure adjustment switch 25.

As described above, by arranging the piping for the chemical solution behind the chemical solution tank 3, the piping distance can be shortened, and thus the pressure loss can be reduced. Since there is no chemical liquid pipe, the risk of exposure of the operator in the driver's seat to chemical liquids (pesticides) can be eliminated even if the pipe is damaged, and in particular, the space where the driver's seat is partitioned like a traveling car with a cabin This is particularly effective when a configuration is made.

[0023]

Since the present invention has the above-described structure, the pressure loss can be reduced by shortening the piping distance, and the danger of exposure to the operator due to the chemical liquid piping not reaching the driver's seat can be avoided. It has economic and security effects.

[Brief description of the drawings]

FIG. 1 is a plan view mainly showing a layout of a chemical pipe of a speed sprayer of the present invention.

FIG. 2 is a front view of an operation panel provided in a driver's seat.

FIG. 3 is a sectional view of a pressure transmitter (pressure joint kit).

FIG. 4 is a side view of a pressure regulator (power regulator).

5 is a front view of the device shown in FIG.

FIG. 6 is a front view of an electromagnetic switch (electric ball valve).

FIG. 7 is a side view of the electromagnetic switch shown in FIG. 6;

FIG. 8 is a plan view showing a layout of a conventional chemical pipe.

FIG. 9 is a plan view of a water separator in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled trolley 2 Driver's seat part 3 Chemical liquid tank 4 Engine room 5 Spout head 6 Blower part 7 Prime mover (engine) 8 Spray pump 17 Nozzle group 19 Pressure regulator (Power regulator) 20 Electromagnetic open / close valve (Electric ball valve) 21 First piping 22 Pressure transmitter (pressure joint kit) 23 Second piping 24 Pressure gauge 25 Pressure adjustment switch 27 Main open / close switch 43 Main open / close valve (3-way cock)

Claims (3)

[Claims] 1. A driver's seat (2), a chemical liquid tank (3), a prime mover (7), and a jet head (5) driven by the prime mover (7) from the front to the rear of the self-propelled vehicle (1). In a speed sprayer comprising a motor chamber (4) provided with a spray pump (8) capable of pumping a chemical solution to the nozzle, the jet head (5) facing a nozzle group (17), and a blower section (6), A pressure regulator (19) and an electromagnetic on-off valve (20) are interposed between the nozzle group (17) and the spray pump (8), and the pressure by the pressure regulator (19) can be adjusted. A speed sprayer comprising a pressure control switch (25) and a main open / close switch (27) of the electromagnetic on / off valve (20) disposed in the driver's seat (2). 2. A pressure gauge (24) is provided at the driver's seat (2), and a pressure transmitter (22) is interposed between the pressure gauge (24) and the spray pump (8). And a first pipe (21) and a second pipe (23) which enable the pressure transmitter (22) to communicate with the spray pump (8) and the pressure gauge (24). Piping (21,
The speed sprayer according to claim 1, wherein water and a liquid feed are enclosed as the pressure transmitting liquid in the pressure transmitting liquid. 3. A nozzle group (1) facing a spray pump (8) and a jet head (5) by using the electromagnetic on-off valve (20).
7), and between the solenoid on-off valve (20) and the spray pump (8), which can be selectively communicated or recirculated to the chemical liquid tank (3). A main open / close switch (27) and a main open / close switch capable of controlling the main open / close valve (43) are provided on an operation panel (26) provided in the driver's seat portion (2). Around (27), the nozzle group (1
Nozzle switches (28a-28) in accordance with the arrangement of 7)
2. The speed sprayer according to claim 1, wherein d) is provided.