JPH09322692A - Upper spraying unit of self-propelled pest-controlling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the spraying of a chemical solution upward and downward from a high position by using a swingable pest-controlling machine loaded on a mobile vehicle. SOLUTION: An upper spraying part F is placed at the rear upper position of a swingable spraying part. The upper spraying part F is fixed in a state whose vertical position is adjustable, and the upper spraying part F is constructed so that it can spray toward backside against the moving direction. Further, the base of a nozzle 1.1 of the upper spraying part is rotatably fixed on a supporting tube having a horizontal shaft so that the base can vertically rotate to adjust the spraying direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for spraying a chemical liquid from a high position upward and downward by utilizing a rocking type control machine mounted on a traveling vehicle.

[0002]

2. Description of the Related Art Conventionally, a driving unit is arranged at a front part of an airframe,
2. Description of the Related Art A self-propelled pest control device in which a chemical liquid tank is disposed at a rear portion thereof, a power sprayer or an engine is disposed at a rear portion thereof, and a spraying section for spraying a chemical liquid at a rear end portion of the fuselage is known. A plurality of nozzles are arranged in the left-right direction in the spraying section, and a plurality of these nozzles are arranged every three rows to form a three-divided shape of the left, right, and upper parts in the center, and spraying can be controlled independently. ing. For example, when traveling between trees, the pumping of the chemical solution to the nozzle of the central spraying section is stopped and the chemical solution is sprayed from the nozzles on the left and right sides.

[0003]

However, there is no problem in the case of shrub and fruit trees such as mandarin oranges in the case of stopping the conventional spraying from the central spraying section and spraying only from the left and right sides. Trees with high height such as persimmons and persimmons can be sprayed evenly on the branches and leaves in the lower part when the leaves are overgrown, but the chemical solution may not be able to reach the branches and leaves above the trees. there were. In addition, in the conventional rocking type sprayer, the spray from each nozzle is rotated in an elliptical shape, and by spraying on the leaves that are swaying by the spray, spraying on the back surface of the leaves is possible. However, in the upper part of the tree, the momentum of the spray was weakened, and the repainting on the surface of the leaves was insufficient. As a result, uneven spraying occurred on the branches and leaves above the trees. Therefore, in order to spray the upper branches and leaves of the tree overgrown with leaves, the chemical solution is sprayed upward and downward from a high position near the upper part of the tree,
There has been a demand for a control machine that eliminates the uneven spraying on the branches and leaves above the trees.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. In a self-propelled control machine that sprays by spraying a plurality of spray nozzles arranged in a fan shape in the front, rear, left, and right directions, an upper spray section is provided above and above the swing spray section.
The upper spray unit was attached so that the vertical position could be adjusted, and the upper spray unit was configured to spray backward in the traveling direction. Further, in the upper spraying section, a base of the nozzle is rotatably attached to a pivot pipe having an axis in the horizontal direction, and the spraying direction can be adjusted by rotating the nozzle up and down.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view of a self-propelled control machine equipped with an upper spray section according to the present invention, FIG. 2 is a rear view of a self-propelled control apparatus also equipped with an upper spray section, and FIG. FIG. 4 is a rear view showing a mounting portion that enables the same, FIG. 4 is a partial cross-sectional side view showing the mounting portion, FIG. 5 is a side sectional view showing a fixing mechanism for fixing the extension pipe, and FIG. FIG. 7 is a cross-sectional view, FIG. 7 is a piping diagram for pumping the chemical liquid to the spraying unit and the upper spraying unit, and FIG. 8 is a plan view partially sectional view showing the upper spraying unit that pivotally supports the nozzle of the present invention. FIG. 4 is a rear view showing the upper spraying part of the present invention.

First, a self-propelled pest control device according to the present invention will be described with reference to FIG. A chassis 9 is fixedly mounted on a crawler traveling device A formed by winding left and right crawlers 10, and an operation unit B is formed in front of the chassis 9; a traveling lever is provided in front of the operation unit B. The arranged operation column 12 is provided upright. A driver's seat 11 is disposed at the left and right center of the rear of the driver B, and a side column is provided on the left side of the driver's seat 11 with a main shift lever and cocks 21 and 22 for opening and closing spray. On the chassis 9 behind the driver's seat 11, the chemical solution tank 13 is provided from the front.
In the middle part, an engine E for traveling drive and power sprayer drive, a transmission case, a hose reel 15 for hand spraying,
The battery 19 and the power sprayer 2 are installed, and these are covered with the cover 14. At the rear end, there is arranged a oscillating spray unit 17 in which a plurality of nozzles 1,... Are arranged in an arc shape, which is covered with a spray unit cover 16. It is configured to swing simultaneously. A lower spraying portion 27 projects downward from both sides of the oscillating spraying portion 17 and sprays outward to the lower spraying portion 27 so that the nozzle 1 can be sprayed on the root of a fruit tree or a shrub.
・ 1 is installed. The spray unit is configured in this way.

Next, the structure of the spray unit 17 will be described with reference to FIG.
This will be described with reference to FIG. The outside of the rocking spray unit 17 is covered with a spray unit cover 16, and the left, middle and right spray units 17L, 17M, 17R are housed in the spray cover 16.
Are arranged in a fan shape in the rear view, and the lower spray portion 27 is projected below the lower end portions of the left and right spray portions 17L and 17R. Each of the left-middle-right spray sections 17L, 17M, 17R and the lower spray section 2
A plurality of nozzles 1, 1, ... Are projectingly provided on the outer peripheral portion of 7, and each of the nozzles 1, 1 ,.

Then, as shown in FIG. 7, the main cock 21 and the spray cock 22 arranged on the side column pump the chemical solution in the chemical solution tank 13 sucked by the power sprayer 2 to the original cock 21. There is. The source cock 21 is a three-way switching valve, one of the secondary sides is connected to the spray cock 22, and the return side hose is connected to the other. The sprinkling cocks 22 are branch cocks 22L, 22M, 22 on the left center and right side.
It is made of R, branches from the original cock 21 in three directions, and can be opened and closed by branch cocks 22L, 22M, and 22R, respectively, which are connected to the left, middle, and right spray sections 17L, 17M, and 17R, respectively. In addition, the left and right branch cocks 22L / 2
Branch pipes 24, 24 are further connected to the 2R, and are connected to the left and right lower spray portions 27, 27 via the lower cocks 23.

Next, the mounting structure of the upper spraying portion F of the present invention arranged on the rear portion of the chassis 9 will be described. A bumper 25 is provided at the rear of the chassis 9 so as to project rearward.
An upper spraying part F is fixed to the rear part of the bumper 25 by a mounting part C. As shown in FIGS. 3 and 4, the mounting portion C is a fixed plate 28, a support tube 29 fixed to the rear surface of the fixed plate 28, and a tubular body slidably fitted in the support tube 29. The extension pipe 30 includes the extension pipe 30.
An upper spraying section F is fixed to the upper end of the. Holes 28b are opened at the left and right ends of the fixing plate 28, and bolts 31 and 31 are inserted into the holes 28b and fixed to the rear surface of the bumper 25. As a structure in which the mounting table is integrally formed, the mounting plate 28a is projected forward from one side of the upper portion of the fixed plate 28, and the upper cock 53 for switching the pressure feed of the chemical liquid to the upper spraying section F described later is fixedly provided. We are trying to simplify the assembly.

A lower portion of a support cylinder 29 having an axial center in the vertical direction is fixedly installed at a central position on the rear surface of the fixed plate 28, and a lower portion of an extension pipe 30 is inserted into the support cylinder 29 to extend the fixed pipe 28. The upper spraying part F of the present invention is provided on the upper end of the pipe 30.
Is fixed. In addition, in order to fix the extension pipe 30 at an arbitrary upper and lower position, an insertion hole 29 is formed in an upper portion of the support cylinder 29.
a is opened, and the insertion hole 29a is formed on the outer peripheral surface of the support cylinder 29.
By fixing the screw nut 32 having the same shaft center as the fixed screw nut, screwing the knob screw 33 into the screw nut 32, and abutting the end of the knob screw 33 against the extension pipe 30,
The extension pipe 30 can be fixed at an arbitrary upper and lower position.
Further, the hose guide 3 is provided in the upper and lower middle portions of the support cylinder 29.
4 is fixed.

Further, as another embodiment for fixing the extension pipe 30 at an arbitrary height, it can be constructed as shown in FIGS. That is, the arm 3 formed in an L-shape in side view
6, a knob screw 33 is inserted into one side of the arm 36, a pressing metal fitting 35 is fixed to the other end of the arm 36, and the pressing metal fitting 35 is formed into a substantially U-shape in a plan view with an open end. It is inserted inside 29 and arranged so that it can abut against the extension pipe 30. Then, similarly to the above, the screw nut 32 is attached to the support cylinder 2
The knob screw 33 is fixedly mounted on the base plate 9 so that the tip of the knob screw 33 is brought into contact with the side surface of the pressing member 35. Therefore, the extension pipe 30 is inserted into the support tube 29, the extension pipe 30 is adjusted to an appropriate height, and the knob screw 33 is attached.
When the screw is tightened, the extension pipe 30 can be fixed by the tip end of the knob screw 33 coming into contact with and pressing the pressing fitting 35. The arm 36 prevents the pressing fitting 35 from falling off.

Next, the piping structure of the chemical liquid hose 50 for feeding the chemical liquid to the upper spray section F will be described. The upper cock 53 is mounted and fixed by the U bolt 37 on the mounting plate 28a formed above the fixing plate 28 shown in FIGS. As shown in FIG. 7, the upper cock 53 is interposed in the middle of a chemical solution hose 51 that pumps the chemical solution to the spraying section 17M from a branch cock 22M at the center of the spray cock 22. The upper cock 53 is a three-way switching valve. One of the secondary sides of the upper cock 53 is connected to the spray section 17M at the center, the other is connected to one end of the chemical solution hose 50, and the other end of the chemical solution hose 50 is connected. Connecting pipe 40 of the upper spraying section F
Connected to the bottom. The upper cock 53 is the lever 5
4 can be rotated and switched, and it is configured to spray to either the central spray unit 17M or the upper spray unit F. The upper cock 53 may be arranged on the side column of the operating section B.

Next, the upper spraying portion F of the present invention arranged above the extension pipe 30 will be described with reference to FIGS. 8 and 9. The upper spray part F has a cylindrical connecting pipe 40 having a shaft center in the vertical direction, a branch pipe 41, 41 projecting from the upper part of the connecting pipe 40 in the left-right direction, and the branch pipe 41.
Elbow pipe 42 for fixing the outer peripheral surface of the elbow pipe, and the elbow pipe 4
It is composed of a nozzle 1 which is rotatably supported at the end of 2 in a vertically rotatable manner.

At the lower part of the connecting pipe 40, a chemical solution hose 5 is provided.
0 is connected, and the middle part of the connecting pipe 40 is supported on the upper portion of the extension pipe 30 by using the fixed body 39. Branch pipes 41, 41 project obliquely left and right rearward from the upper part of the connecting pipe 40, and the elbow pipes 42.4 are connected to the branch pipes 41, 41.
2 is fixed. The elbow pipe 42 is formed in an L shape in a plan view, the pipe 42a at one end is fitted and fixed to the branch pipe 41, and the pipe 42b at the other end is fixed to the pivotal support pipe 43.
3, one end of an arm tube 45 extending in a direction perpendicular to the axis of the arm tube 3 is rotatably fitted outside and fixed by a nut 49 via a contact tube 44. In addition, several holes 43a are opened in the outer fitting portion of the arm pipe 45 of the pivotal support pipe 43 so that the drug solution can pass therethrough.

The nozzle tube 1a, which is the main body of the nozzle 1, is fitted into the tube portion 45b of the arm tube 45. The base portion 45a of the arm pipe 45 has an end surface of the fitting cylinder 42b,
The fitting cylinder 4 is sandwiched between the one side surface of the contact cylinder 44 and
A seal groove 42c is formed in an annular shape on the contact surface of 2b, a seal member 46 is fitted into the seal groove 42c, and a seal groove 44a is similarly formed on the contact surface of the contact cylinder 44 to seal the seal. Even if the member 47 is fitted and the nozzle 1 is rotated, the chemical liquid does not leak from the space between the arm tube 45 and the fitting cylinder 42b and the contact cylinder 44, and the frictional resistance allows the chemical solution to have an arbitrary angle. I am trying to maintain it.

With this structure, when spraying while traveling between trees, when the lever 54 of the upper cock 53 is switched to spray from the upper spray section F, the spray sections on the left and right are sprayed from below. It can be sprayed on the surface of the upper leaves of trees that cannot be sprayed with 17L and 17R.
Further, by loosening the knob screw 33 for fixing the extension pipe 30 and sliding the extension pipe 30 upward, spraying to a higher position is possible. By rotating it upwards as shown by the chain double-dashed line,
The drug solution can be sprayed upward, and the spray height of the drug solution can be increased. By rotating the nozzle 1 downward, the chemical liquid can be sprayed downward.

[0017]

Since the present invention is constructed as described above, it has the following effects. That is, by disposing the upper spraying section above the rear part of the airframe as described in claim 1, it is possible to spray from the upper part of the tree, and the spraying can be performed only by spraying from the side and the lower side with the swing spraying section. It will be possible to spray even on areas that cannot be covered, and it is possible to eliminate uneven spraying on the branches and leaves. Further, while the oscillating sprayer sprays upward and sideways, the upper sprayer sprays backward from the rear of the oscillating sprayer. There is no overlap with the flow, it does not reduce the momentum of the spray, it is possible to improve the spraying performance on the whole tree, it is possible to spray a wide range from the top to the bottom of the tree in one stroke work. The reciprocating work such as double coating can be eliminated, and the working time can be shortened.

According to the second aspect of the present invention, the nozzle mounting angle of the upper spraying section can be changed up and down, so that the spraying can be performed by adjusting the angle according to the target to be sprayed. It is possible to perform the spraying work according to the kind and growing condition, and by using the upper spraying, the work suitable for various fields can be performed.

[Brief description of drawings]

FIG. 1 is an overall side view of a self-propelled control machine equipped with an upper spray section of the present invention.

FIG. 2 is a rear view of the self-propelled control machine, which is also equipped with an upper spray section.

FIG. 3 is a rear view showing a mounting portion that allows the switching valve to be mounted and fixed.

FIG. 4 is a partial cross-sectional view of a side view showing the mounting portion.

FIG. 5 is a side sectional view showing a fixing mechanism for fixing the extension pipe.

FIG. 6 is a bottom sectional view showing a fixing mechanism of the same.

FIG. 7 is a piping diagram for pumping a chemical solution to a spraying section and an upper spraying section.

FIG. 8 is a partial cross-sectional plan view of an upper spraying section pivotally supporting the nozzle of the present invention.

FIG. 9 is a rear view showing the upper spray section of the present invention.

[Explanation of symbols]

 F Upper spray part 1 Nozzle 17 Swing spray part 30 Extension pipe 43 Pivot pipe

Claims (2)

[Claims] 1. A self-propelled insect control machine having a swinging spraying section for spraying by spraying the spraying section, in which a plurality of nozzles are arranged in a fan shape, in a front-rear, left-right direction, and above the swinging spraying section. An upper spraying unit of a self-propelled insect control machine, characterized in that a spraying unit is provided, the upper spraying unit is attached so as to be adjustable in vertical position, and the upper spraying unit sprays backward in the traveling direction. 2. The upper spraying unit according to claim 1, wherein the base of the nozzle is rotatably attached to a pivot pipe having a horizontal axis, and the spraying direction can be adjusted by rotating the nozzle up and down. The upper spray section of the self-propelled control machine characterized by the above.