JPS5830031Y2 - dust collector - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a turbine-type dust collector used as a vacuum cleaner at construction sites and the like.

BACKGROUND ART Suction type vacuum cleaners have been widely used in general households.

This is done in such a way that light dust on tatami mats or carpets is drawn out into a cloth bag or the like by the suction force of the air generated by the rotation of the fan.

However, such household vacuum cleaners are not suitable for cleaning construction sites, parks, or gardens where gravel, pebbles, etc. are scattered, because their suction action is insufficient.

Furthermore, vacuum cleaners that use suction do not have the ability to separate pebbles from dust and selectively absorb only dust.
Furthermore, when the suction power is extremely strong, there is the inconvenience that even unnecessary pebbles may be sucked in.

The present invention was developed in view of these conventional problems, and in particular, air intake is performed by a turbine rotated by a motor, etc., and a shaft individually formed in the turbine is used. The pressurized air generated by the rotation of the fan is sent back to the dust suction port and blown onto the ground, etc., causing gravel and pebbles to be scattered, thereby selectively inhaling only dust and making cloth bags for it. To provide a turbine-type duster which can be effectively housed in a dust machine.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway perspective view of a dust collector 1 according to the present invention, and 2 is a truck having wheels 3. As shown in FIG.

On this truck 2, a long case 4 and a short case 5 that open toward the front are attached.

FIG. 2 is a detailed cross-sectional view of the dust collector 1. A conical cylinder 6 is fixed inside the case 5, and a duct 8 is provided in the gap 7 between the cylinder 6 and the case 5. ing.

Reference numeral 9 denotes a truncated cylindrical turbine, and a pipe 10 is fixed to the central end of the turbine. One end of this pipe 10 is connected to the side plate 4a of the case 4 through a bearing 11, and the other end is connected to a lattice-shaped turbine through a bearing 12. It is rotatably supported by the net mounting plate 13.

Further, an axial fan 14 is provided on the outer periphery of the tip of the pipe 10.
is installed.

A cover 9' is provided so as to surround the pipe 10 and the axial fan 14 and to rotate in synchronization with the pipe 10.
A plurality of axial fans 22 arranged in rows and columns are attached to this cover 9'.

Furthermore, a substantially truncated cylindrical cover 15 and a pipe 16 fixed to the center thereof are arranged in front of the opening of the turbine 9 and the pipe 10, and the pipe 10 is rotatably related to the pipe 16. It is being

17 is an outside air suction chamber formed at the base of the cover 15;
Air introduced in the direction of arrow a from the through hole in the front part of the cover 15 is sucked into the cover 15, and is also drawn into the suction chamber 17 and the bar 15 from the tip of the pipe 16 through the through hole 18 bored in the pipe 16. Air is introduced in the directions indicated by the arrows.

Note that the through hole 18 can also be covered with a net.

Further, a through hole is provided in the inclined surface 15a of the cover 15 so that outside air can be introduced into the cover 15 and the turbine 9.

A through hole 19 is bored in the pipe 10 in the turbine 9, and the air introduced into the through hole 19 in the directions of the arrows a and l) is led out.

It should be noted that a net is optionally stretched over the through hole 19 as well.

Reference numeral 20 is a bracket for fixing the cover 15 on the trolley 2, and 21 is a handle for operating the trolley 2.

As mentioned above, 22 is a plurality of rows and rows of axial fans protruding from the outer periphery of the cover 9' formed to surround the pipe 10 and the axial fan 14.
A pipe communicates the gap 24 between the cover 9' and the cylinder 6 and the duct 8 via a filter, and is attached to the case side plate 4a.

Reference numeral 25 denotes a motor case in which a motor is housed, and a pulley 27 is fixed to a rotating shaft 26 of the motor case.

Also, a large diameter pulley 28 is attached to the end of the pipe 10, and a bell) 28 is installed between these pulleys 27 and 28.
A is stretched.

A pipe 29 has a bellows-shaped pipe 30 connected to the right end thereof, and is fixed on the motor case 25 via a bracket 31.

Note that the end of the pipe 10 is rotatably connected to the adjacent pipe 29.

At the end of the pipe 30 is a dust collection bag 3 made of a jute bag, a net bag, etc.
2 is installed.

On the other hand, a bellows-shaped pipe 33 is connected to the tip of the pipe 16, and a dust collecting pipe 34 and a dust collecting cover 35 as shown in FIGS. 1 and 3 are connected to the end of this pipe.

Moreover, one small-diameter blow-off pipe 36 is provided on the opening side of the dust collecting cover 35, sandwiching the opening end of the dust collecting pipe 34, and these pipes join together outside the dust collecting cover 35 to form a single unit. It is connected to a main pipe 37, and the end of this pipe 37 is connected to the duct 8 via a valve 38.

The dust collecting pipe 34 is branched at its tip as shown in FIG. 4, and its open ends 34 a and 34 b are connected to the dust collecting cover 3.
5 at a predetermined interval on the opening side of the pipe 3.
7 can be branched into three blow-off pipes 36 and arranged as shown.

Next, the operation of the dust collector 1 will be described.

First, the dust collection cover 35 is brought close to the ground, and power is supplied to the motor.

The motor rotates and the pipe 10 is driven via the belt 28a.

Due to this rotation, both the axial fans 14 and 22 of the turbine 9 rotate at high speed, and a high-pressure air suction force is exerted within the cover 9' of the turbine 9 and between it and the tube 6. do.

Therefore, together with the outside air flowing through the suction chamber 17 in the direction of the arrow a, a part of the air flowing inside the pipe 16 flows inside the cover 9' in the direction of the arrow d, and the pressurized air flows through the pipe 16.
At this time, the air flowing in the pipe 10 in the direction of arrow C is sucked toward the rear end of the pipe 10, merges with the air in the direction of arrow d, and rapidly flows in the direction of arrow C. It passes through the pipe 29 and the bellows-shaped pipe 30 in the direction e.

In this way, the dust collection pipe 3 passes through the bellows-shaped pipe 33.
4 and the dust collection cover 35 act on a large air suction force, sucking in dust M on the ground and storing it in the dust collection bag 32.

Also, while the turbine 9 is rotating, the gap 24 also has a
Due to the rotation of the axial fan 22, outside air passes at high speed and high pressure in the direction of the arrow f through the net stretched over the rope mounting plate 13, and is sent to the blowout pipe 36 through the pipes 23 and 37, where it is collected. High pressure air is blown out to the ground facing the dust cover 35.

As a result, pebbles and dust on the ground are blown up by the high-pressure air, and the blown-up dust is separated from relatively heavy pebbles, sucked into the dust collection pipe 34, and stored in the dust collection bag 32. do.

In other words, the dispersed dust can be separated from gravel and pebbles that do not need to be sucked in and removed from the ground.

FIG. 5 shows another dust collection cover 38.

This dust collection cover 38 is divided into two chambers 3 by an inclined partition plate 39.
It is separated into chambers 9a and 39b, and a dust collection pipe 34 is directly connected to the top of chamber 39a.

Further, a rubber piece 40 is attached to the lower part of the partition plate 39 so as to hang down, and a lattice part 41 having rods arranged side by side is stretched on the upper part so as to separate the two chambers 39 a and 39 b. There is.

Furthermore, a compartment 42 is provided in the chamber 39 b, into which another blow-off pipe 38 continuous to the blow-off pipe 36 is guided, and the end of the pipe 43 is connected to the chamber 39 b.
It is made to protrude toward one side in a.

Reference numeral 44 denotes a valve that automatically opens when the load of pebbles and the like collected thereon exceeds a predetermined value.

In such a dust collection cover 38, dust and pebbles on the ground facing the cover 38 are sucked up by the suction air flow inside the dust collection pipe 34, but the above-mentioned blow-off pipe 4
The sucked-up airflow is scattered by the air jet ejected from 3.

For this reason, light dust is drawn into the dust collection pipe 34, but pebbles and the like pass through the lattice section 41 and accumulate on the valve 44, and when their weight reaches a predetermined value, the valve 44 opens and falls to the ground. .

In this way, only dust can be separated from pebbles and the like and stored in the dust collection bag 32.

As explained above, according to the present invention, since the axial fans are individually formed in the turbine, the main suction is performed by one axial fan, and the pressurized air is jetted out by the other axial fan. Because of this, the pumping of pressurized air by the axial fan, which performs the main suction, is not diminished.

Also, since two axial fans are installed in the turbine, the number of parts can be reduced, making it more economical.

Therefore, when cleaning the ground outdoors at construction sites, parks, gardens, etc., the dust that should be removed can be separated from gravel and the like and efficiently absorbed into the dust bag.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a turbine-type dust collector according to the present invention, Fig. 2 is a sectional view thereof, Fig. 3 is a sectional view of its dust collecting cover, and Fig. 4 is another embodiment of the dust collecting cover. FIG. 5 is a vertical sectional view of still another embodiment. 1... Dust collector, 9... Turbine, 10
...Pipe, 14゜22 ... Axial fan, 26 ... Motor shaft, 34 ... Dust collection pipe, 35 , 38 ...・Dust collection cover, 36.
43...Blowout pipe.

Claims (1)

[Scope of utility model registration request] A turbine rotated by an appropriate drive source, a dust collection pipe placed at the tip of the turbine and having a dust collection cover at the tip, and a bellows-shaped pipe placed at the rear end of the turbine and having a dust collection bag at the rear end. In a dust collector consisting of
The turbine has an axial fan in a pipe rotatably supported in the center, and a plurality of axial fans arranged in rows on a cover that surrounds the pipe and rotates in synchronization with the pipe, The dust collection pipe is arranged adjacent to the tip of the pipe, and the bellows-shaped pipe is arranged adjacent to the rear end of the pipe, and the pipe is connected to the bellows-shaped pipe near the part adjacent to the pipe. Shape the hole,
Pressure air generated by rotating an axial fan attached to the pipe is sent to the bellows-shaped pipe through a hole, and air from the dust collection pipe is sucked into the bellows-shaped pipe through the pipe, and the cover is A dust collector characterized by blowing out pressurized air generated by synchronously rotating an axial fan attached to a dust collector into a dust collector cover.