JP2549149Y2 - Speed sprayer blower structure - Google Patents

Description

[Detailed description of the invention] [Industrial applications]

The present invention relates to a blower structure of a speed sprayer used for spraying a medicine in an orchard or the like.

[Prior art]

Conventionally, a speed sprayer generally used in an orchard or the like is a method in which a chemical liquid is supplied to a large number of injection nozzles that are opened at an air outlet provided along an outer periphery of an airflow fan of an axial blower provided at a rear part of an airframe. The chemical liquid supplied and sprayed from the large number of injection nozzles is diffused by blowing air from a blower, and is spread over a wide area at a time. That is, the blower is provided in a state in which the wind-tunnel suction port is exposed at the rear part of the body of the speed sprayer, and a strong suction force by a rotating action of an impeller provided inside the wind-turbine causes the surroundings inside the wind-turbine of the blower. After the air was sucked, the air was diffused together with the chemical from the air outlet.

[Problems to be solved by the invention]

As described above, a speed sprayer provided with a blower having an impeller at the rear with its suction port exposed, for example, on the day when the wind blows, or particularly in the autumn or shelf orchard, the power of the blower is increased. Along with the surrounding air sucked into the wind tunnel by a strong suction force, the leaves of the tree falling from above are sucked into the suction port side and easily adhere to the protective net covering the suction port. In some cases, they could adhere, and the air blowing performance for spraying the medicine was sometimes reduced. Therefore, the present invention enhances the effect of preventing the fallen leaves from sucking, so that the leaves of the trees, the hay on the ground, the fallen leaves, etc. do not adhere to the protection net of the suction port of the blower provided in an exposed state. It is another object of the present invention to provide a blower structure that does not lower the blowing performance of spraying a medicine.

[Means for Solving the Problems]

In view of the above object, the present invention has a configuration in which a cover formed of a net of an appropriate length that extends outward from the periphery of the suction port of the blower and covers at least an upper portion of the suction port is provided. .

[Action]

According to the present invention, a cover 8 composed of a net of a suitable length, in particular, leaves of trees falling from above extending from the periphery of the suction port 5a of the blower 3 to cover at least the upper part of the suction port 5a. As a result, the air is prevented from entering the blower and does not adhere to the protection net 7 of the suction port 5a as in the related art, and therefore, the blowing performance for spraying the medicine is not reduced. Further, when the cover 8 is formed of a net, the surface area for air suction of the blower is not reduced, and the blow performance is not reduced.

【Example】

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 shows a conventional general speed sprayer. In the figure, 1 is an internal combustion engine for traveling or the like, 2 is a chemical liquid tank, 3 is an axial flow blower, 4 is a chemical liquid injection nozzle, 5 is a wind tunnel of the blower, 5a is a suction port, and 5b is a wind tunnel. This is an air outlet provided along the outer periphery. In the speed sprayer having the above-described configuration, an operator performs a driving operation while sitting in a driver's seat, drives the blower 3 while running, and places the chemical solution from the injection nozzle 4 on the discharge wind to spray the liquid around. In the blower 3, a suction opening 5 a opened at the rear end of the wind tunnel 5 is covered with a protective net 7. The present invention comprises a net of an appropriate length which extends outward from the periphery of the suction port 5a opened at the rear end of the wind tunnel 5 constituting the blower 3 and covers at least the upper part of the suction port 5a. A cover 8 is provided, the details of which are shown in FIG. 1 and FIG. In the embodiment shown in the figure, the cover 8 is a plate cover 8a provided in a shelf shape below the suction port 5a, and the cover 8 extends outward from the periphery of the suction port 5a to cover at least the upper part of the suction port 5a. It is composed of a net cover 8b having a length. According to the present invention having the above-described structure, the leaves of trees falling near the intake port 5a of the blower 3 or the net cover 8b or the plate cover 8a even if there is hay or defoliation on the ground.
Is prevented from adhering to the protection net 7 of the suction port 5a as in the prior art. The cover 8, specifically, a mesh cover 8b of an appropriate length that extends outward from the peripheral edge of the suction port 5a and covers at least the upper portion of the suction port 5a by using a commercially available wire mesh, can be used as a blower. Since the surface area for air suction is not reduced, the air blowing performance is not reduced, and it can be produced at low cost, which is preferable.

[Effect of the invention]

ADVANTAGE OF THE INVENTION According to this invention, a leaf etc. can be effectively prevented from adhering to the protective net of the inlet of a blower, and the effect of not lowering the blowing performance of a medicine spraying is acquired.

[Brief description of the drawings]

1 is a perspective view of a speed sprayer embodying the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view of a conventional speed sprayer embodying the present invention. 3 ... Blower, 4 ... Injection nozzle, 5a ... Suction port, 8 ...
…cover.

Claims (1)

(57) [Scope of request for utility model registration] 1. A speed, comprising: a cover (8) extending from a peripheral edge of a suction port (5a) of a blower (3) outwardly and formed of a net having an appropriate length to cover at least an upper part of the suction port (5a). Sprayer blower structure.