JP2538310Y2 - Sprayer for speed sprayer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a speed sprayer in which a spray pipe having a spray nozzle is rotatably provided in a base solution pipe, and the spray nozzle faces a discharge port of a blower. And a spraying device.

[Conventional technology]

As this type of spraying apparatus, for example, Japanese Utility Model Publication No. Sho 63-30516
What is shown in the gazette is provided.

In this spraying device, since the spray tube having the spray nozzle is rotatably provided on the base solution tube, by appropriately rotating the spray tube, the direction of the spray nozzle can be adjusted according to a desired spray pattern and a spray direction. Was adjustable.

[Problems to be solved by the invention]

However, in the conventional spraying device, the rotatable attachment of the spray pipe to the base liquid pipe is performed by projecting the support inner pipe only on one side of the base liquid pipe, and opening the inner hole of the support inner pipe. This has been done by communicating with the inner hole of the base liquid tube and screwing the spray tube to the outside of the support inner tube in a liquid-tight and rotatable manner. For this reason, when an excessive external force is applied to the spray tube, the force is concentrated only on the base of the supporting inner tube, that is, on one side of the base solution tube, so that the installation of the spray tube is unstable. The threaded portion between the support inner tube and the spray tube, that is, the threaded portion is worn out, which is apt to occur, and there is a problem in durability.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spraying device for a speed sprayer which has a stable installation of a spray pipe and high durability.

[Means for solving the problem]

In order to solve the above problem, the present invention provides a spraying device for a speed sprayer, in which a spray pipe having a spray nozzle is rotatably provided in a base liquid pipe, and the spray nozzle faces a blower outlet of a blower. Opened support outer tubes are provided on both sides of the base solution tube so as to protrude coaxially with each other, the inner holes of the respective support outer tubes communicate with the respective inner holes of the base solution tube, and the spray tubes are supported by the respective support tubes. A communication hole that is rotatably inserted into the inner hole of the outer tube and penetrates the base solution tube, and a communication hole that communicates the inner hole of the spray tube with the inner hole of the base solution tube is provided at the penetrating portion of the spray tube. And a structure in which a seal member seals between the support outer tubes and the spray tube on both sides of the base solution tube.

[Action]

According to the present invention, since the spray pipe is rotatably supported by each of the support outer pipes protruding on both sides of the base solution pipe, the external force acting on the spray pipe passes through each of the support outer pipes. As a result, it is dispersed on both sides of the base liquid pipe, and the installation of the spray pipe is stabilized.

Further, in the present invention, the spray tube is rotatably inserted into the inner hole of each support outer tube protruding from both sides of the base solution tube, and is screwed by a screw portion as in the conventional spraying device. Since this is not the case, it is difficult for rattling to occur after many years of use, and durability is improved.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a rear side view showing an example of a speed sprayer 1 equipped with a spraying device according to an embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. FIG. 4 is a perspective view showing the main part of FIG.
The figure is a sectional view taken along the line VV in FIG.

The speed sprayer 1 has a chemical tank 3 mounted substantially at the center of the traveling vehicle 2, and an exhaust port 6 of an axial blower 5 having a suction port 4 at the rear end of the body is opened in a mountain shape adjacent to the chemical tank 3, This is a general configuration in which a plurality of spray nozzles 7 face each other in a chevron shape along the air outlet 6. A pump (not shown) is provided near the outer peripheral edge of the air outlet 6 from the chemical liquid tank 3. A base solution pipe 8 having an introduction pipe 28 for guiding the chemical solution pumped through the base solution is provided in a substantially fan shape. Although the base solution tube 8 is divided into three parts, a left side, an upper side, and a right side, the number of the sections may be changed as appropriate.

Each of the spray nozzles 7 is fixed to a spray pipe 9 disposed along the longitudinal direction of the body, and
As shown in FIGS. 3 and 4, the base fluid pipe 8 is rotatably provided.

That is, supporting outer tubes 10 and 11 having open ends are respectively provided coaxially and protrudingly on both front and rear sides of the base liquid tube 8, and the inner holes 10a and 11a of the supporting outer tubes 10 and 11 respectively correspond to the base liquid. The tube 8 communicates with an inner hole (a passage for a chemical solution) 8a. Further, the spray pipe 9 is provided with inner holes 10a, 11b of the support outer pipes 10, 11, respectively.
And penetrates through the base solution tube 8.
In the penetrating portion of the spray pipe 9, an inner hole of the spray pipe 9 is provided.
There is provided a communication hole 9b for connecting 9a to the inner hole 8a of the base solution tube 8, and the liquid passes through the inner hole 8a of the base solution tube 8, the communication hole 9b of the spray tube 9 and the inner hole 9a. The fuel is sprayed from the spray nozzle 7. Further, O-rings 12 and 13 as seal members are provided between the support outer tubes 10 and 11 and the spray tube 9 on both front and rear sides of the base solution tube 8, respectively, and are sealed so that the chemical solution does not leak. I have.

In the case of the embodiment shown in the drawings, the spray tube 9 is prevented from coming off in the axial direction by a flange portion 14 formed at the rear end of the spray tube 9 and a wind guide plate 15 described later.

Further, the air guide plate 15 is detachably attached to a portion of the spray pipe 9 on the side of the spray nozzle 7 on the front side of the base liquid pipe 8 with a screw 16 as shown in FIGS. 4 and 5. By rotating the spray pipe 9, the direction of the spray nozzle 7 and the direction of the air guide plate 15 can be simultaneously adjusted. Usually they are oriented in the same direction. In the case of the illustrated example, as shown in FIG. 1, the air discharge passage is divided into three passages by two rectifying cylinders 17 and 18 disposed in the blower 5, but FIG. As shown in the figure, the left and right lower wind guide plates 15 are configured for three passages, the middle wind guide plate 15 is configured for two passages, and the upper wind guide plate 15 is configured for a general passage. The side's ability to guide air has been enhanced. Although the air guide plate 15 can be attached to all the spray tubes 9 in practice, a part thereof is omitted in FIG. The shape and the like of the air guide plate 15 are not limited to the illustrated example, and may be attached to only some of the spray pipes 9 in some cases.

As shown in FIG. 3, lower air guide plates 19 are provided at lower portions on both sides of the air outlet 6. The lower air guide plate 19
Is rotatably provided by a pivot 40 with respect to the body, controls the wind direction of the skirt portion on both sides of the discharge port 6 according to the rotation, expands and reduces the fan-shaped spray on both the left and right sides, It can also be used for spraying on slopes.

Further, as shown in FIG. 3, the spray tubes 9 and the lower air guide plate 19 are linked by a link mechanism. That is, a screw member 29 serving as a blind plug for closing the rear end portion is provided at a rear end portion of the spray tube 9 opposite to the mounting side of the air guide plate 15 with the base solution tube 8 interposed therebetween. The moving arm 20 is detachably fixed by a nut 21. And
The swinging ends of the spray tube rotating arms 20 are detachably linked to each other by a connecting plate (a connecting rod or the like) 21. Further, a link plate 24 is also connected by a connecting plate 24 between an interlocking arm 23 fixed to one end of a turning rod 22 rotatably supported on the lower side of the fuselage and the lowermost spray tube turning arm 20. A swing arm fixed to the other end of the rotating rod 22
25 and the lower air guide plate 19 are also linked by a connecting plate 26. Each of the spray tube rotation arms 20 is provided with a plurality of connection holes 20a for linking with the connection plates 21, so that the connection locations can be changed easily and appropriately. Further, the spray tube rotating arm 20
A drive rod 27 operated by an electric actuator or the like (not shown) is linked to the drive rod 27. Therefore, the driving rod 27
Is operated, the spray pipes 9 and the lower air guide plate 19 are simultaneously rotated via the respective connection plates 21 and the spray pipe rotating arms 20 and the like, and the respective spray nozzles 7, the air guide plate 15, and the lower air guide plate are rotated. The direction of 19 can be simultaneously adjusted at a desired angle, and the spray form can be changed. In addition, the spray pipes 9 and the lower air guide plate 19 of each group on the left and right with respect to the fuselage center line are configured to interlock independently, and the left and right groups can be moved separately. It can also be used as a device.

According to the spraying device of the present invention having the above configuration, the spray pipe 9
Are the outer supporting pipes 10 and 11 protruding from both sides of the base solution pipe 8.
Therefore, the force acting on the spray pipe 9 is applied to the base solution pipe 8 via the support outer pipes 10 and 11.
And the spray tube 9 is stably mounted. Further, the spray pipe 9 is rotatably inserted into the inner holes 10a, 11a of the support outer pipes 10, 11 protruding on both front and rear sides of the base liquid pipe 8, as in the conventional spraying apparatus described above. Since this is not due to the screwing of the threaded portions, rattling hardly occurs due to long-term use, and the durability is improved.

Further, in the case of the embodiment shown in the drawings, the following advantages can be obtained.

That is, in the spraying apparatus disclosed in the above-mentioned Japanese Utility Model Publication No. Sho 63-30516, a link mechanism for interlocking the spray pipe with the air guide plate fixed to the spray pipe having the spray nozzle is attached. In order to obtain a desired spray pattern according to the tree shape), it was extremely difficult to replace the air guide plate with a different size or shape, whereas in the case of the embodiment shown in the drawings, the spray pipes 9 were linked. Since the link mechanism is not provided on the air guide plate 15, there is an advantage that the air guide plate 15 can be easily replaced.

Further, in the case of the embodiment shown in the drawings, each of the spray tube rotating arms 20 is detachably fixed to the spray tube 9, and the swinging ends thereof are detachably linked to each other by a connecting plate 21 so as to be detachably linked. Since a plurality of coupling holes 20a are provided in the pipe turning arm 20, each of the arms 20 is replaced with one having a different length, and a coupling position (connection point) with the coupling plate 21 is changed. As a result, the link ratio can be freely changed. For this reason, the amount of rotation of each spray pipe 9 can be freely set in conjunction with each other, and there is an advantage that the desired spray pattern can be easily adjusted according to the target field.

[Effect of the invention]

ADVANTAGE OF THE INVENTION According to this invention, while attachment of a spray pipe is stabilized, durability is improved and effects, such as adjustment work being easily performed, are acquired.

[Brief description of the drawings]

FIG. 1 is a rear side view showing an example of a speed sprayer equipped with a spraying device according to an embodiment of the present invention, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. FIG. 4 is a perspective view showing a main part, FIG. 4 is a vertical sectional view of the main part, and FIG. 5 is a cross-sectional view taken along the line VV in FIG. 5 ... Blower, 6 ... Outlet, 7 ... Spray nozzle, 8 ... Base liquid pipe, 9 ... Spray pipe, 9b ... Communication hole, 10,11 ... Support outer pipe, 12,13
... O-ring (seal member).

Claims (1)

(57) [Scope of request for utility model registration] A spray tube having a spray nozzle is provided in a base solution tube.
In the spraying device of the speed sprayer, which is rotatably provided at the spray nozzle 7 and faces the outlet 6 of the blower 5, the supporting outer tubes 10 and 11 having open ends are placed on both sides of the base solution tube 8. Protruding coaxially with each other, the inner holes 10a, 11a of the supporting outer tubes 10, 11 are respectively inserted into the inner holes of the base solution tube 8.
8a, the spray pipe 9 is rotatably inserted into the inner holes 10a, 11a of the support outer pipes 10, 11 to penetrate the base liquid pipe 8, and the spray pipe 9 is inserted into the penetrating portion of the spray pipe 9. Is provided with a communication hole 9b for communicating the inner hole 9a of the spray tube 9 with the inner hole 8a of the base solution tube 8. On each side of the base solution tube 8, the supporting outer tubes 10, 1 are provided.
A spraying device for a speed sprayer, characterized in that the space between 1 and said spray pipe 9 is sealed by sealing members 12 and 13.