JPH0376166B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a small-sized dust collector, and more particularly to a small-sized dust collector using a filter and having good operability and maintainability.

[Background of the invention]

A dust collector that purifies the air by collecting dust floating in the air in a room or the like generally has a structure as disclosed in Japanese Patent Application Laid-open No. 4411/1983. In this structure, as shown in FIG. 4, a motor 22, a fan 23, a filter 24, a dust box 25, etc. are sequentially arranged in the outer frame container 21 from above, and the dust-containing air is discharged from the lower side of the outer frame container 21. is sucked by the suction force of the fan 23 from the suction port 26 formed in the
The configuration was such that only dust was collected by the filter 24 and only clean air was discharged from the discharge port 27 via the fan 23. Further, the dust collected by the filter 24 is guided on the partition plate 29 on the upper surface of the filter 24 via a roller 28, and a dust removal lever 31 equipped with a dust device 30 that comes into contact with the filter 24 is moved as shown in FIG. The dust box 25 installed below is removed by pulling and moving it by hand.
The dust collected in the dust box 25 is disposed of by removing the clamp 32 and taking the dust box 25 out, as shown in FIG.

In the conventional dust collector configured as described above, the filter 24 and the dust box 25 are separately provided, and the dust removing device 30 is required, so that the volume of the dust collector becomes large and there is a drawback that the dust collector becomes large. Due to the large size of the dust collector, the installation location is limited, and it may not be possible to install it near the dust source and it may be necessary to install it far away using duct piping.
In this case, a problem arises in that a dust collector with a large capacity corresponding to the piping pressure loss must be used, which is uneconomical. In addition, it takes time and effort to dispose of the dust in the dust box 25, and the filter 2
4 was not easy to remove, and since the dust box 25 and filter 24 were separate parts, there was a problem that even if dust was stored in excess of the capacity of the dust box 25, it could not be detected, and the dust box 25 could not be pulled out. .

[Purpose of the invention]

The present invention has been made in view of the above points, and
The purpose is to provide a dust collector that is small and easy to maintain.

[Summary of the invention]

The present invention provides a filter installed in a small dust collector,
The filter is formed into an almost cylindrical shape with a circumferential surface folded into a corrugated shape, an upper surface with an opening through which dust-containing air flows in, and a closed lower surface, and the filter is detachable from the outer frame container of the dust collector. The desired purpose is achieved by disposing the dust collector above the fan which is rotated by the dust collector's motor.

[Embodiments of the invention]

Hereinafter, one embodiment of a small dust collector according to the present invention will be described with reference to the drawings.

An embodiment of the present invention is shown in FIGS. 1, 2, and 3. The outer frame container 1 of the dust collector is divided into three parts by partition plates 2 and 3.
A motor 4 is fixedly attached to the partition plate 3, and a rotating shaft 4a of the motor 4 passes through the partition plate 3 and protrudes upward, and a fan 5 is fixedly attached to the upper end of the rotating shaft 4a. An air intake port 6 is formed in the center of the upper partition plate 2, and a plurality of fan discharge ports 7 are formed near the periphery of the lower partition plate 3, and these partition plates 2 and 3 are each formed with bolts 8. and 9 are fixed to the outer frame container 1.
A discharge port 10 is provided on the outer periphery near the bottom of this outer frame container 1.
is provided. Reference numeral 11 denotes a switch for the motor 4 provided outside the outer frame container 1.

The filter 12 is removably disposed within the outer frame container 1 above the partition plate 2, and its structure is as shown in FIG. In the figure, the filter material 13 has a substantially cylindrical shape that has been folded into a corrugated shape, and a blind plate-like filter frame 14 is fixed to the lower end surface of the filter material 13, and an opening 15a is formed in the center of the upper end surface. A filter frame 15 is fixedly mounted, and two filter handles 16 are fixedly mounted on the upper surface of the filter frame 15. The filter 12 configured in this manner is placed on the upper end surface of the outer frame container 1 via the filter frame 15, and the upper lid 18 is placed on top of the outer frame container 1 via the cover 17.
is provided. An opening 15a is formed at the center of the filter frame 15 in the center of the upper lid 18.
A suction port 18a is provided at a position aligned with the
Further, the outer frame container 1 is airtightly sealed at at least two locations on the peripheral edge of the upper lid 18. Further, a clamp 19 provided at the upper end of the outer frame container 1 is locked via the packing 17, and a position facing the filter furnace material 13 on the inner surface of the outer frame container 1 by the upper lid 18 is provided. A plurality of springs 20 are provided, and as the filter furnace material 13 rotates, it hits the top of the filter furnace material 13 and removes adhering dust from the filter furnace material 13.

The operation of this embodiment configured as described above will be explained below. When the switch 11 is turned on, the fan 5 directly connected to the motor 4 rotates to create a negative pressure inside the outer frame container 1. This negative pressure causes the suction port 18
Dust is sucked together with air from the source through the hood, duct, etc. connected to filter 1.
2, only the dust is collected, and the clean air is sent to the fan outlet 7 via the fan 5 as shown by the arrow in FIG.
It is discharged to the outside through the discharge port 10. To dispose of the dust collected in the filter 12, remove the lock with the clamp 19, remove the top cover 18, take out the filter 12 by holding the filter handle 16 and pulling it up, and remove the dust collected inside the filter 12. Dispose of at a disposal site. At this time, the dust adhering to the filter material 13 can be removed by holding the filter handle 16 with both hands with the filter 12 placed in the outer frame container 1 and slightly pulling up and rotating the filter handle 16 so that the spring 20 can remove the top of the filter material 13. Dust can be dropped into the filter 12 by tapping.

According to this embodiment configured as described above, there is no need for a dust box or a dust removal device that was required in the conventional example, so the dust collector of the same capacity can be downsized to 1/2 or less of the conventional volume. is possible,
Since it can be installed near the dust source, there is no need for piping work, which was required in the past, making it economical, and at the same time, it can easily adapt to layout changes. Also filter 1
Since the dust collected in step 2 can be easily disposed of and the filter 12 is removed at the time of disposal, wear and damage of the filter 12 can be inspected at the same time, and the dust collector can be used safely and effectively for a long period of time. In addition, since the motor 4 is located at the bottom, the center of gravity is lowered, improving installation stability and reducing accidents such as damage caused by falling. Even if the noise level is a dust collector, the noise level is actually low, making it possible to use it even in quiet workplaces. Furthermore, if more than a certain amount of dust accumulates in the filter 12, the pressure loss of the filter increases and suction becomes impossible, so that the dust cannot accumulate beyond its capacity, which is effective in terms of maintenance and safety.

〔Effect of the invention〕

As described above, according to the present invention, the filter is formed by folding the circumferential surface into a corrugated shape, has an opening on the top surface, and closes the bottom surface, and is removably attached to the outer frame container of the dust collector, so it is small and easy to maintain. It is possible to provide a dust collector with good performance.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a small dust collector according to the present invention, FIG. 2 is an external perspective view of FIG. 1, FIG. 3 is an external perspective view of the filter shown in FIG. 1, and FIG.
The figure is a partially cutaway external perspective view showing a conventional dust collector, FIG. 5 is a perspective view showing the dust removal operation shown in FIG. 4, and FIG. 6 is a perspective view showing the state in which the dust box shown in FIG. 4 is pulled out. . 1... Outer frame container, 4... Motor, 5... Fan, 12
...Filter, 13...Filter material, 14, 15...
Filter frame, 15a...opening.

Claims (1)

[Claims] 1 Consists of a motor, a fan rotationally driven by the motor, a filter that separates and collects dust from the dust-containing air sucked by the fan, and an outer frame container for housing these components. In a small dust collector, the filter is formed into a substantially cylindrical shape having a circumferential surface folded into a corrugated shape, an upper surface provided with an opening through which dust-containing air flows in, and a closed lower surface, and the filter is 1. A small dust collector, characterized in that it is detachably attached to a frame container and is disposed above a fan that is rotationally driven by the motor.