JP2555740B2 - Spraying nozzle opening / closing device for pest control equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray nozzle opening / closing device for a control machine, and in particular, a spray nozzle of a boom is switched depending on a traveling direction of a vehicle to make a spray state uniform. The present invention relates to a spraying nozzle opening / closing device for a control machine.

[Prior Art] Conventionally, in this type of control machine, a boom that is long in the left-right direction is fixedly installed either in front of or behind the vehicle, and a plurality of spray nozzles are installed in parallel on the boom. Then, the chemical solution or fertilizer solution filled in the tank is pressurized by a pump and sprayed from each of the spray nozzles.

[Problems to be Solved by the Invention] In the above-described conventional control machine, it is difficult to turn the vehicle because the long boom protrudes to the left and right sides of the vehicle. In addition, when the control work is performed by changing the traveling direction forward and backward without turning the vehicle, there is a problem that the worker sprays the chemical liquid sprayed from the spraying nozzle on the traveling direction side.

Therefore, there is a technical problem to be solved in order to effectively perform the control work while turning the vehicle alternately forward and backward without turning the vehicle, and the present invention solves this problem. The purpose is to do.

[Means for Solving the Problems] The present invention has been proposed in order to achieve the above-mentioned object, and a center boom extending in the left-right direction of the vehicle is fixedly installed at either the front portion or the rear portion of the vehicle. Together with the left and right booms for spraying left or right movably,
A plurality of spray nozzles are installed side by side on each of the central boom and the dual-purpose boom, and when the vehicle travels with the central boom positioned in the front part of the traveling direction of the vehicle, the spray nozzles provided on the central boom are When the vehicle is closed, the spray nozzles provided on the left and right booms are opened, and when the vehicle travels in the direction opposite to the traveling direction, the spray nozzles on the central boom and the left and right booms are sprayed. It is intended to provide a spray nozzle opening / closing device for a defense machine, characterized in that the nozzle is formed so as to be opened.

[Operation] According to the present invention, the spray nozzles are arranged side by side on the central boom and the left and right booms, and the spray nozzles are formed so as to be openable and closable. The dual-purpose boom is movable, and for example, moves the boom to the left side of the vehicle when the vehicle moves forward, and moves the boom to the right side of the vehicle when the vehicle moves backward. Therefore, it is not necessary to project a long boom to the left and right sides of the vehicle, and the configuration can be simplified. Further, since the spray nozzle at the central portion of the vehicle is opened and closed according to the traveling direction of the vehicle to spray the chemical liquid or the like behind the worker in the traveling direction, the amount of sprayed chemical liquid or the like on the worker is reduced. Decrease. In addition, when the vehicle is moved forward and backward, it is possible to prevent double spraying on the same site, and uniform spraying is possible.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the attached drawings. FIGS. 1 and 2 show a pest control machine, in which a reference numeral (1) indicates a vehicle of a passenger management machine, and a tank (2) also serving as a seat is fixedly installed at a rear portion of the control machine. A spreading device (3) is attached to the front. The spraying device (3) is composed of a central boom (4) fixed in the left-right direction of the vehicle (1), a left-right combined boom (6) which is horizontally rotatable around a support rod (5), and the like. ing. A plurality of spray nozzles (7) (7) ... Are arranged in parallel at a predetermined interval on each of the booms (4) and (6), and each spray nozzle (7) (7) ... is a switching valve as will be described later. , Is connected to the tank (2) via a pump or the like.

The support rod (5) is rotatably erected on the center of the front surface of the vehicle (1). The support rod (5) is fixedly mounted with a boom (6) for both left and right, and a stay (8) is attached to the support rod (5). Support the left and right boom (6) so that it does not hang down. Therefore, the supporting rod (5) and the stay (8) as well as the boom (6) for both left and right are integrally formed so as to be rotatable in the horizontal direction. Also, the left and right combined boom (6)
The middle part (6a) is bendable, and when it is folded up at the middle part (6a) and stands up as shown by the chain line in Fig. 2, it protrudes to the left and right during non-working. Has been minimized.

FIG. 3 shows the structure of the piping portion of the spraying device (3). The inside of the tank (2) is filled with a chemical solution, and the chemical solution filtered by the strainer (9) is absorbed by a water hose (1
It reaches the pump (11) through (0), is pressurized by the pump (11), and is pressure-fed to the switching valve (13) through the water discharge hose (12). The switching valve (13) has two spray hoses (1) via line strainers (14) (14).
5) and (16) are connected, one spray hose (15) is connected to each spray nozzle (7) (7) of the central boom (4), and the other spray hose (16) is a dual-purpose boom. Connect to each spray nozzle (7), (7) ... of (6). An arm provided between the line strainer (14) (14) and the switching valve (13) with a ball valve (17) (18) interposed between the ball valve (17) and the operation panel (19). It is connected with (20) by push-pull wire (21).

Therefore, when the main speed change lever (22) is shifted to the reverse position (R), the arm (2
0) rotates and pulls the push-pull wire (21) to open the ball valve (17). On the other hand, when the main transmission lever (22) is shifted to the other forward position or to the other position, the arm (20) is rotated to the original position, the pull of the push-pull wire (21) is released, and the ball valve ( 17) is blocked. Therefore, the spray nozzles of the central boom (4) are opened only when the main shift lever (22) is in the reverse position (R), and all spray nozzles (7) (7) including the boom (6) for both left and right use are opened. The chemical solution is sprayed from. When the main transmission lever (22) is shifted to a forward position other than the reverse position (R), or when the vehicle (1) moves forward, the spray nozzles (7) of the central boom (4) are moved.
The chemical solution is not sprayed from (7) ..., but the chemical solution is sprayed only from the spray nozzles (7), (7) of the boom (6) for both left and right. Therefore, when the vehicle (1) moves forward, there is no spray in front of the worker, and the amount of chemical liquid directly exposed decreases,
The central boom (4) is sprayed when the vehicle (1), which has less influence on the operator, moves backward.

Further, when the vehicle (1) is switched between forward and backward, if the boom (6) for both left and right is rotated and set to the opposite position, the reciprocating movement of the vehicle (1) causes the central portion and the left and right side portions of the vehicle (1) to move. Preventive work can be performed, and duplicate spraying on the same site can be prevented. In FIG. 3, a pressure gauge (24) and a regulating valve (25) are attached to the switching valve (13), and the stirring nozzle (26) provided in the tank is connected to the switching valve (13) through the stirring hose. (27) is connected and the chemical liquid filled in the tank (2) is stirred by the stirring nozzle (26). Then, the residual liquid overflowing from the adjusting valve (25) is collected in the residual water hose (2
Passed through 8) and returned to tank (2).

FIG. 4 is a side view showing another embodiment, and FIG. 5 is a front view of the same, and the same reference numerals are used for the same components as those of the above-mentioned embodiment. A support frame (29) is provided on the spraying device (3) provided at the front part of the vehicle (1), and a central boom (4) is fixedly mounted on the support frame (29), and a boom for both left and right ( 30) is provided so as to be slidable in the left-right direction.

6 and 7 show the essential parts of the boom (30) for both left and right use. A mounting plate (31) is fixed to the support frame (29), and the mounting plate (31) can be mounted by removing the pins (32) (32) and changing the height in the vertical direction. A motor (33) is fixedly mounted on the back surface of the mounting plate (31) to remove the battery (3).
4) and connect the shaft of the motor (33) to the mounting plate (3
Fit the wire pulley (34) so that it projects from the front of (1). In addition, a wire pulley (3
Presser rollers (35) (35), (35) (3
5) is pivotally attached, and the left and right boom (30) is sandwiched between the respective presser rollers (35) (35) from above and below to be slidable in the left and right direction. The left and right combined boom (3
0) has a plurality of spray nozzles (7) (7) ...
Are arranged side by side, and the hose (36) and the pipe (37) are formed so as to pump the chemical liquid to the spray nozzles (7) (7). Locking pieces (38) are fixed to the left and right ends of the dual-purpose boule (30) to lock the ends of the wire (39), and the wire pulley (34) has the wire (39). Wind the middle part of. Further, the hose (36) arranged along the boom (30) for both left and right is wound around the hose reel (40).

The hose reel (40) is pivotally attached to the mounting plate (31) as shown in FIG. 7, and the rotary shaft (41) of the hose reel (40) is sprayed from the above-mentioned switching valve (13). The hose (16) is connected to the hose (36) (36) to pump the chemical solution under pressure. In addition, the rotation of the wire pulley (34) is rotated by the hose reel (4) via the belt (42).
0) and the rotation of the wire pulley (34) and the rotation of the hose reel (40) are synchronized. Therefore, in FIG. 6, the wire pulley (34) is rotated to rotate the wire (3
If the wire (39) is wound in one direction, one end of the wire (39) pulls one of the locking pieces (38), and the boom (30) for both left and right is held by the presser rollers (35) (35). , (35) (35)
Slide in one direction between. At that time, the hose reel (40) also rotates in synchronization with the wire pulley (34),
Wind the hose (36) in line with the slide of the boom (30) for both left and right. Therefore, the boom (3
The chemical liquid can be pressure-fed to the hose (36) regardless of whether the (0) is moved to the left or right, and the chemical liquid can be sprayed from the spray nozzles (7) (7).

Next, the nozzle valves (43) (43) ... Provided to the spray nozzles (7) (7) of the other embodiment will be described with reference to FIGS. 8 and 9. In FIG. 8, valve switches (44) (45) are projected from the vehicle (1) at positions near both ends of the central boom (4), and push-pull wires (46) (46) are attached. Remote control unit (4
It is configured to operate in 7). FIG. 9 is an enlarged view of the valve switch (44), in which the operating pieces (49) (50) are fixedly mounted on the front surface of the rotatable shaft (48). An arm (51) is fixed to the rear surface of the shaft (48), and the push-pull wire (46) is locked to one end of the arm (51). On the other hand, a nozzle valve (43) is provided between the spray nozzle (7) and the pipe (37), and a lever (52) having a V shape in front view is attached to the nozzle valve (43).

Then, as shown in the drawing, the push-pull pull wire (46) is tensioned to set the operating pieces (49) (50) to the upright state,
The boom (30) for both left and right, for example, to the right (arrow R direction)
Slide to the lever (52) by the actuating piece (50).
Rotates clockwise and the nozzle valve (43) is closed.
On the contrary, when the left and right boom (30) slides to the left (the direction of arrow L), the lever (52) is rotated counterclockwise by the operating piece (49) and the nozzle valve ( 43) opens. On the other hand, if the push-pull wire (46) is loosened and the actuating pieces (49) (50) are turned upside down, the valve opening / closing (4) will occur regardless of the slide of the left / right boom (30).
4) does not contact the lever (52) and the open / closed state of the nozzle valve (43) does not change. Although not shown, the other valve switch (45) is symmetrical to the valve switch (45), and when the left and right boom (30) slides in the right direction (arrow R direction), each nozzle It is formed so as to open the valves (43) (43) ....

Thus, as shown in FIG. 10, first, the left and right combined boom (30) is slid to the right side of the vehicle (1). At this time, since the nozzle valve between the valve switches (44) and (45) is closed by the valve switch (44) as described above, the spray nozzle (7) ( 7) ...
The chemical liquid is not sprayed from the spray nozzles, and the chemical liquid is sprayed only from the spray nozzles (7) (7) on the right side protruding portion of the vehicle (1). Therefore, when the vehicle (1) is moved forward and the control work is performed, if the nozzle valves of the spray nozzles (7), (7), ... Of the central boom (4) are closed, the sprayed chemical solution can be directly used. It is possible to prevent people from taking a bath. Then, while the vehicle (1) is moving forward, the chemical solution is sprayed on the portion (53) indicated by the chain line, then the vehicle (1) is stopped and the boom (30) for both left and right is slid to the left.

Then, the nozzle valves of the spray nozzles (7) (7) on the left side of the boom (30) for both left and right use are opened by the valve switch (44), and the valve switches (44) and (45) are opened. The nozzle valve between and is closed. Then, as described above with reference to FIG. 3, set the main shift lever (22) to the reverse position (R).
By doing so, the ball valve (17) of the switching valve (13) is opened, and the spray nozzles (7) (7) of the central boom (4) ...
The drug solution is sprayed from. Therefore, if the control work is performed while the vehicle (1) is moving backward, the chemical solution can be sprayed on the part (54) shown by the chain line.

Thus, the field work can be performed while the vehicle (1) is reciprocating back and forth.

Incidentally, the present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified one.

[Effects of the Invention] As described in detail in the above-mentioned one embodiment, the present invention is characterized by opening or closing the spray nozzle at the central portion when performing the control work while reciprocating the vehicle back and forth. It is possible to prevent double spraying by avoiding overlapping of the spraying range when moving forward and the spraying range when moving backward. As a result, the adverse effects of partial overspraying of the drug solution are eliminated. In addition, since the spray nozzle in the central portion is closed when the vehicle is moving forward, it is possible to prevent the driving operator from being directly exposed to the sprayed chemical liquid.

Thus, the present invention provides various effects such as a good working environment and effective control work.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of a pest control machine, FIG. 2 is a front view of the same, and FIG. 3 is an explanatory view showing a structure of a piping portion of a spraying device. FIG. 4 is a side view of the exterminating machine of another embodiment, FIG. 5 is a front view of the same, FIG. 6 is a plan view of a main part of a boom for both left and right, and FIG. 7 is a cross-sectional view of a hose reel, and FIG. FIG. 9 is a plan view of a main part showing an installed state of the valve switch, FIG. 9 is a perspective view of the same, and FIG. 10 is a plan view illustrating a procedure of the control work. (1) …… Vehicle, (4) …… Center boom (6) (30) …… Boom for both left and right (7) …… Spraying nozzle

Claims (1)

(57) [Claims] 1. A central boom extending in the left-right direction of the vehicle is fixedly installed on either the front part or the rear part of the vehicle, and a dual-purpose boom for spreading left and right or right is movably provided.
A plurality of spray nozzles are installed side by side on each of the central boom and the dual-purpose boom, and when the vehicle travels with the central boom positioned in the front part of the traveling direction of the vehicle, the spray nozzles provided on the central boom are When the vehicle is closed, the spray nozzles provided on the left and right booms are opened, and when the vehicle travels in the direction opposite to the traveling direction, the spray nozzles on the central boom and the left and right booms are sprayed. A spray nozzle opening / closing device for a control machine, characterized in that the nozzle is formed so as to be opened.