JPH0123557Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust removal air nozzle that removes dust by jetting air.

Conventional air nozzles of this type simply spray air radially from a fixed injection port, and therefore cannot remove dust over a wide area.

This invention proposes an air nozzle for dust removal, which has a structure in which the injection port automatically rotates and moves depending on the air injection force, and can remove dust over a wide range and set the injection amount to an appropriate value. .

That is, referring to FIGS. 1 to 3 corresponding to the embodiments, the air nozzle of the present invention has a hollow holder 1 having a nipple 2 protruding from the upper side, and a plurality of intake holes 4 provided on the peripheral wall thereof. A bearing 6 is disposed within the holder 1, and the upper end of the pipe nozzle 3 is rotatably fitted and supported on the bearing 6.
This pipe nozzle 3 has a vertical upper end 7,
The middle part 8 is gently curved in the x direction, which is perpendicular to the axis, and the lower part 9 is gently curved in the y direction, which is perpendicular to the x direction, so that the jet nozzle 10 at the lower end is oriented diagonally downward. . In addition, in the nipple 2,
An inner pipe 12 whose lower end protrudes into the pipe nozzle 3 is inserted through the inner pipe 12 so as to be replaceable.

An embodiment thereof will be described below based on the drawings.

This air nozzle has a nipple 2 integrally protruding from the center of the upper surface of a cap-shaped holder 1, and
A pipe nozzle 3 is rotatably supported on the lower side of the holder 1.

The holder 1 has a plurality of air intake holes 4 extending through its peripheral wall. A ball bearing 6 is fitted and fixed inside the holder 1, that is, at the lower side of the air chamber 5 thereof.

The pipe nozzle 3 has an upper part 7 that is vertical, an intermediate part 8 that is gently curved in the x direction in FIG. It is gently curved, and the jet nozzle 10 at its lower end is directed diagonally downward. The upper end (base end) of the pipe nozzle 3 is supported by a ball bearing 6 without being pulled out.

A male thread 11 is formed on the outer peripheral surface of the nipple 2, and an inner pipe 12 is fitted into the nipple 2, passing through the air chamber 5 and having its lower end projecting into the pipe nozzle 3. This inner pipe 12 is fixed to the nipple 2 by a caulking material 13 stuffed into the upper end opening of the nipple 2.

This air nozzle is used by connecting the nipple 2 to an air supply pipe or the like, and the supplied air flows into the pipe nozzle 3 through the inner pipe 12 and is jetted diagonally downward from the jet nozzle 10. The air that entered the pipe nozzle 3 is
Since the pipe nozzle 3 is curved in the x and y directions as described above, the jet is ejected diagonally downward, drawing a circular arc trajectory centered on its axis, and as a reaction force, the pipe nozzle 3 is injected in the direction a in Figure 2. generates a torque of

This causes the pipe nozzle 3 to rotate in the direction a, and its jet port 10 to rotate, making it possible to inject air over a wide range. In addition, with the air injection from the pipe nozzle 3, the outside air around the holder 1 is sucked into the air chamber 5 through the intake hole 4, joins with the air from the inner pipe 12, and is injected together with it. The amount of air injection increases by the amount of outside air taken in from 4. By preparing a plurality of pipes with different inner diameters as the inner pipe 12 and using them interchangeably, the amount of air injection can be adjusted.

As is clear from the above description, according to the present invention, dust can be removed over a wide range by automatically rotating the pipe nozzle in response to air injection and allowing the pipe nozzle to rotate. Furthermore, the amount of air injection can be adjusted by replacing the inner pipe.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view, FIG. 2 is a bottom view, and FIG. 3 is a sectional view. DESCRIPTION OF SYMBOLS 1... Holder, 2... Nipple, 3... Pipe nozzle, 4... Intake hole, 6... Roller bearing, 7, 8, 9... Upper part, middle part, lower part of pipe nozzle, 10... ...Spout port, 12...Inner pipe.

Claims (1)

[Scope of utility model registration request] A plurality of intake holes 4 are provided in the peripheral wall of a hollow holder 1 having a nipple 2 protruding from the upper side, and a bearing 6 is disposed inside the holder 1.
The upper end of the pipe nozzle 3 is rotatably fitted and supported in the pipe nozzle 3, and the upper end 7 of the pipe nozzle 3 is vertical, the middle part 8 is gently curved in the X direction, which is the direction perpendicular to the axis, An inner pipe whose side portion 9 is gently curved in the y direction perpendicular to the x direction, directing the jet nozzle 10 at the lower end diagonally downward, and whose lower end protrudes into the pipe nozzle 3 into the nipple 2. An air nozzle for dust removal characterized in that a dust removal air nozzle is installed through the air nozzle in a replaceable manner.