JPH067801Y2 - Clog prevention device for electric dusting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a clogging prevention device for an electric dusting and granulating machine, which is mainly used for spraying agricultural chemicals.

(Prior art) To apply agricultural chemicals to agricultural products (including fruits),
Use a dusting granulator. This is because depending on the type of pesticide, there are powdery and granular ones, but if a dusting and granulating machine is used, any one of them can be satisfactorily sprayed. The conventional dusting and granulating machine is mainly of a type in which a handle is manually rotated. This dusting and granulating machine is equipped with a shutter between the storage part (tank) for the agricultural chemicals to be sprayed and the nozzle hose, so that even if the storage part contains pesticides at the end of the work, the pesticides will be transferred to the nozzle hose side. I try not to flow. This is because pesticides generally have high hygroscopicity, so if you leave the container and nozzle hose in communication,
This is because it absorbs moisture and clumps like a dango, and when it is next used, it clogs the nozzle hose and does not come out. In this case, such a situation does not occur if the shutter is closed.

(Problems to be solved by the device) However, it is not the machine expert but the farmer who uses the dusting and granulating machine, and it is tired by the work of one day, so forget to close the shutter. There are many. In this way, if the shutter is forgotten to be tightened after use, the pesticide solidifies into a dumpling and clogs the nozzle hose as described above. If the nozzle hose is clogged, it will not work until the next use unless the clog is removed. The present invention has been made for the purpose of solving this problem.

(Means for Solving the Problems) As a means for solving the above problems, the present invention uses an electric fan for pressure-feeding the material to be scattered, and installs a shutter between the accommodation portion of the material to be scattered and the nozzle hose. The configuration of the provided electric powder granulator is such that the shutter and the power switch of the motor for driving the electric fan are linked.

(Operation) With such a configuration, when the power switch is turned on for use, the shutter can be opened by the operation, and the shutter can be closed when the power switch is turned off after the work is completed. Therefore, it is possible to avoid clogging of pesticides without the user's awareness.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the whole of an electric powder-dispersion machine, in which 1 is a housing thereof and 2 is a band worn by a user on the body. A base end of the nozzle hose 3 is attached to the lower portion of the housing 1, and the base end communicates with an electric fan inside as described later. A nozzle 4 is attached to the tip of the nozzle hose 3. A nose 5 for operating a power switch, which will be described below, projects from a portion of the housing 1 opposite to the position where the nozzle hose 3 is attached.

2 and 3 show important parts inside FIG. In these drawings, reference numeral 6 denotes a storage section (tank) for storing the agricultural chemicals to be sprayed. The accommodating portion 6 expands so as to come into contact with the inner wall of the housing 1 at the upper portion (not shown), but the illustrated bottom portion 6a contracts in a hopper shape and has a small diameter. The bottom portion 6a of the accommodating portion 6 is flat, and a portion thereof has a hole 7 (a triangular hole in this embodiment) as shown in FIG. In FIG. 3, it is not shown because it is located on the other side of the shaft 8 which will be described next because of the cross-section.

The shaft 8 rotationally drives the fan 10 in the fan chamber 9 located in the lower portion of the housing portion 6, and the lower portion (not shown) is attached to the output shaft of the motor. The shaft 8 and the fan 10 are connected by a pin 11. The upper end of the shaft 8 reaches the inside of the housing portion 6, and a stirring fan 12 is attached to the portion to rotate the shaft 8 by rubbing the upper surface of the bottom portion 6a. This is to allow the pesticide to smoothly flow downward from the hole 7 when using the electric dusting and granulating machine. A plate 13 is provided so as to be located between the bottom portion 6a of the housing portion 6 and the fan chamber 9, and forms a shutter together with the hole 7. That is, the plate 13 has a substantially L-shape as shown in FIG. 2, and the tip portion forming the shutter is rotatably fitted to the shaft 8.

The plate 13 is located immediately below the bottom portion 6a, and when it is in the position shown in FIG. 2, the hole 7 is closed from below, so that the shutter is closed, and the plate 13 moves to the second position about the axis 8.
When rotating counterclockwise as shown in the figure, the hole 7 gradually expands and the shutter opens. As will be described later, a, b
Is a shutter opening adjustment range. A part of the plate 13 extends in the direction of the housing 1, and at its end,
A knob 5 located outside the housing 1 is attached. 14 is a slide stopper.

There is a stretchable portion 15 in the middle of the plate 13. The expansion / contraction part 15 expands / contracts by a distance 1 at the position of the knob 5, and by this expansion / contraction, a micro switch 16 as a power switch of a motor (not shown) attached to this part is turned on / off. . In this mechanism, when the knob 5 is pulled from the position shown by the solid line to the position shown by the broken line in FIG. 2, the arm 17 of the microswitch 16 is pushed by the tip of the adjusting screw 18 to turn on the circuit, and from that position in the figure. The circuit is designed to turn off when pushed to the left. As shown in FIG. 4, the slide stopper 14 is provided with a recess 14a at the off position of the micro switch 16, so that a part of the plate 13 is engaged. Reference numeral 19 in FIG. 2 indicates a lead wire connected to the microswitch 16.

The device thus configured operates as follows. First, a lid (not shown) provided on the upper part of the housing 1 is opened, pesticide is put into the housing portion 6, and the band 2 is attached to the front part of the body. Hold the nozzle hose 3 in this state,
Aim the nozzle 4 at the target agricultural product. Next, the knob 5 is pulled and the micro switch 16 is turned on. As a result, a motor (not shown) rotates and the fan 10 and the stirring fan 13 rotate at a predetermined rotation speed. When the knob 5 is pulled and the micro switch 16 is turned on, the portion of the plate 13 corresponding to the hole 7 is displaced from the lower part of the hole 7 to open the hole 7, so that the pesticide in the accommodating portion 6 does not move the hole 7. Pass through and enter the fan room 9. The pesticide that has entered the inside of the fan chamber 9 is guided to the nozzle hose 3 by the fan 10 and is sprayed from the nozzle hose 3 through the nozzle 4 to the agricultural products to which the nozzle 4 is directed. The shape of the plate 13 at the portion to which the knob 5 is attached is such that it has a downwardly projecting portion as shown in FIG.
Due to the relationship with the slide stopper 14, the knob 5 can be moved from the position a to the position b only when the micro switch 16 is turned on. When the knob 5 is moved from the position a to the position b, the positional relationship between the hole 7 and the plate 13 changes,
The opening degree of the shutter can be adjusted. Knob 5
Can also be fixed at the position b where the shutter is widest open. To finish the work and stop the motor, the knob 5 is returned to the position a and pushed to the left in FIGS. 2 and 3. As a result, the motor is stopped and the fan 10 and the stirring fan 12 are stopped. At this time, since the plate 13 closes the hole 7, the pesticide that has passed through the hole 7 is blocked. Therefore, unlike the conventional one, it does not absorb moisture and harden.

In the embodiment described above, the knob 5 is attached to the housing 1.
Although the micro switch 16 is turned on by pulling it toward the other side, this has another structure, for example, the arm 20 is provided separately from the plate 13 as shown in FIG. Is attached to the plate 13 by a shaft 21, and a micro switch 16 and a knob 5 are attached to the arm 20.
You may attach and. In this case, the micro switch 16 is turned on and off by holding the knob 5 and moving it up and down. The shutter can be opened and closed when spraying the pesticide only when the shutter is on, as shown in FIG. What is shown in FIGS. 7 to 9 is still another example. In this case, the micro switch 16 is turned on and off by turning the knob 5, and the plate 13 can be turned only when the micro switch is turned on. This mechanism enables the plate 13 to be rotated in the range of 90 ° as shown in FIG.
The arm 17 of the micro switch 16 when rotated by 0 °
Is pushed by the plate 13 to be turned on, and only at this time, the plate 13 can be rotated by the slide stopper 14. FIG. 8 shows the knob 5 with respect to the plate 13.
The structure in which the shaft 22 to which is attached is rotatably supported by the clip 23 is shown.

(Effect of the Invention) Since the present invention is configured as described above,
The shutter cannot be opened unless the motor power switch is turned on, and the shutter closes automatically when the power switch is turned off. It is possible to reliably prevent solids caused by forgetting to absorb the pesticide moisture.

[Brief description of drawings]

FIG. 1 is a front view of an electric dusting and granulating machine to which the present invention is applied, FIG. 2 is a sectional view taken along line II-II, and FIG. 3 is III-I of FIG.
FIG. 4 is a sectional view taken along the line II, FIG. 4 is a perspective view of FIG. 2 seen from the direction of arrow IV, FIG. 5 is a side view of the essential portion of another embodiment of the present invention, and FIG. FIG. 7 is a view as seen from the direction of arrow VI, FIG. 7 is a front view of the essential parts of still another embodiment of the present invention, and FIG.
7 is a plan view of the one shown in FIG. 7, and FIG. 9 is a side view of the microswitch portion shown in FIG. 1 ... Housing, 3 ... Nozzle hose 4 ... Nozzle, 5 ... Knob 6 ... Housing, 7 ... Hole 8 ... Shaft, 10 ... Fan 13 ... Plate, 15 ... Expansion / contraction section 16 ... …Microswitch

Claims (2)

[Scope of utility model registration request] 1. An electric duster using an electric fan for pressure-feeding a material to be scattered, and a shutter provided between an accommodation portion of the material to be scattered and a nozzle hose, the shutter and the motor for driving the electric fan. A clogging prevention device for an electric dusting and granulating machine, characterized by being linked with a power switch. 2. A shutter is formed by a hole and a plate which moves above the hole, a tip of the plate is projected to the outside of the housing to attach a knob, and a power switch of a motor is driven on a part of the plate. A clogging prevention device for an electric dusting and granulating machine according to claim 1, characterized in that a mechanism is provided.