JPS5811177Y2 - Duster powder rectifier - Google Patents

Description

[Detailed description of the invention] This invention is a powder rectifying device for a duster that uses a blower to blow out powder from the spray hole of a spray hose, and that rectifies the rotating air in the hose by the blower to prevent uneven distribution of the powder. This is related to.

Generally, in a duster that uses a blower to blow out powder from the spray hole of a spray hose, rotation occurs in the air at the bend in the blower's discharge pipe, and the powder that is continuously fed into the discharge pipe rotates in a linear manner. and will be sent.

In other words, the powder is sent continuously in a spiral,
For this reason, it is not possible to spray the powder evenly from each spraying hole of the spraying hose, and the powder is sprayed from the spraying hole located at the position of the spiral powder, but not from the other holes, which is the so-called uneven distribution. This phenomenon was occurring.

In order to prevent this rotation of the air, there is a conventional flow rectifier that is configured to prevent the rotation of the air by providing a protruding wall in the pipe in parallel with the axial direction and protruding toward the axial center, as shown in Figure 4. However, the rotation of the air near the center of the tube cannot be prevented, and this rotational force re-applies rotational force to the air near the outer periphery within the spraying hose, which has the disadvantage of being insufficient for even spraying.

This invention divides the inside of the pipe into multiple spaces using partition walls installed parallel to the axial direction in one part of the pipe, thereby preventing rotation of the air near the center and ensuring even distribution. The purpose of the present invention is to provide a powder rectifying device for a duster that can perform the following steps.

Examples will be explained below using the drawings.
In the figure, 1 is an engine, 3 is a blower driven by the engine 1, 5 is a discharge pipe of the blower 1, 7 is a powder tank, and 9 is a communication pipe that connects the bottom of the powder tank 7 and the discharge pipe 5, and 9 is a communication pipe that connects the bottom of the powder tank 7 and the discharge pipe 5. It is configured to be continuously fed into the discharge pipe 5.

11 is engine 1. Support body for supporting the blower 3 etc., 13
15 is a flexible pipe connected to the discharge pipe 5, and 15 is a spraying hose, which is usually made of a flexible material such as vinyl and has a closed tip, and spraying holes 17, 17, etc. provided on the lower surface along the entire length.
There are many rows of...

Reference numeral 19 denotes a rectifier tube that connects the spraying hose 15 to the discharge tube 5 via the flexible tube 13, and the interior is partitioned into a plurality of spaces by providing an appropriate number of partition walls in the axial and parallel directions. .

In the above configuration, when dispersing the powder, the blower 3 is rotated by the engine 1 and the powder in the powder tank 7 is continuously fed into the discharge pipe 5 through the communication pipe 9.

The blowing air causes rotational movement at the bent portion, but the rotational movement is blocked by the partition wall 21 in the rectifier pipe 19, and the spraying hose 1
5 and is sprayed from the spray holes 17, 17...

Since the partition wall 21 passes through the center of the shaft and partitions the inside of the rectifier tube 19 into a plurality of spaces, the rotational movement of the air at the center is also prevented, and the air is completely rectified and sent into the spray hose 15, completely distributing the air. This will result in even distribution.

As described above, the present invention consists of a rectifier tube provided in communication between a spraying hose provided with a dispersion hole and a blower discharge pipe, and a rectifier tube provided inside the rectifier tube in a direction parallel to the axial direction. Since it is a powder rectifying device such as a duster, which is equipped with a partition wall that divides the powder, it is possible to reliably prevent uneven powder dispersion, and because the structure is simple, it can be manufactured at low cost.

Note that in this embodiment, one partition wall is provided, but
The number of partition walls is not limited to one, but two partition walls may be provided perpendicularly to each other as shown in Fig. 3.If three or more partition walls are provided, the rectification effect will be further improved. be.

Further, the partition wall may be configured to be detachably attached to the rectifier tube.

Furthermore, the term "powder" as used in the present invention is not limited to so-called fine powder, but granular powders also have similar effects and belong to the present invention.

Further, the rectifying pipe may not be provided separately, but may be formed integrally with a part of the discharge pipe and the spraying hose.

In addition, FIG. 4 shows a conventional rectifier, where 23 is a rectifier tube, and 25, 25, . . . are projecting walls.

[Brief explanation of drawings]

Figure 1 is a perspective view of a duster equipped with the device of the present invention;
The figure is a perspective view of an embodiment of the present invention, FIG. 3 is a perspective view of another embodiment of the present invention, and FIG. 4 is a perspective view of a conventional rectifier. Explanation of symbols representing main parts of the drawing 3: Blower, 5
:Discharge pipe, 15: Spraying hose, 17: Spraying hole, 19: Rectifier pipe, 21: Partition wall.

Claims (1)

[Scope of utility model registration request] Spraying hose 15 provided with spraying holes 17.17...
and the discharge pipe 5 of the blower 3.
9; and a partition wall 21 provided inside the rectifier tube 19 in a direction parallel to the axial direction and dividing the inside of the rectifier tube 19.