JPH023779Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a dust removal device for a shaped filter suitable for use in a rectangular shaped filter used in a dust collector or a vacuum cleaner.

[Conventional technology]

Molded filters have a large filter area even though the filter external size is small, so they have high utility value as air filters and can exhibit excellent dust collection effects, and it is important to maintain this excellent dust collection effect for a long time. To do this, it is necessary to periodically or periodically brush off the dust adhering to the filter. There are various types of dust removal equipment that perform this type of dust removal, such as pulse jet type, backwash type, and vibration type. Dust removers are often used in small dust collectors and vacuum cleaners because they have a relatively simple structure and are easy to use.

Figure 5 shows an example of a vibrating (beating type) dust removal device conventionally used for rectangular molded filters. When the rotating shaft S is rotated manually or by a motor (not shown), the pin P hits the molded filter F and vibrates, thereby brushing off the adhering dust. The system is designed to allow you to do this.

[Problem that the invention attempts to solve]

In the dust removal device configured as described above, the pin P rotates around the rotation axis S and hits the shaped filter F by rotating along the locus PR with the radius R as shown in FIG. is stopped only at the distance L shown in the figure, and a non-dust removal area is created on both the left and right sides where no vibration is applied.In addition, at the top and bottom center of the molded filter F, the pin P hits the part close to the filter base FB. In this connection, there was a problem in that the vibrations were not transmitted to the center, so a sufficient dust removal effect could not be achieved.

In addition to the above-mentioned rectangular (square) shaped filter, there is also a cylindrical shaped filter having a substantially star-shaped (chrysanthemum-shaped) cross section. Among these molded filters, rectangular molded filters can be neatly attached to the external frame of a dust collector or vacuum cleaner when installed.
The overall installation volume can be reduced compared to the filter area, which has the advantage of wide range of use. On the other hand, in the case of a cylindrical molded filter, there is a problem that the dead space is large when it is attached to an external frame, and the total mounting volume is large compared to the filter area.

However, as mentioned above, rectangular molded filters have the problem that it is difficult to remove adhering dust and cannot obtain a sufficient dust removal effect. Large rectangular molded filters with a wide area have hardly been put into practical use, and the above-mentioned cylindrical molded filters, which can easily remove dust, have been put into practical use in many cases and are currently the mainstream.

[Means for solving problems]

The present invention was proposed in view of the above-mentioned points, and its purpose is to provide vibration to as many filter surfaces as possible, so that even a rectangular shaped filter can be sufficiently supported and is excellent. The purpose of the present invention is to provide a dust removal device for molded filters that exhibits a dust removal effect and that enables the practical use of rectangular molded filters that have a large area and are excellent in handling. In order to achieve this, a plurality of tapping protrusions are provided on the front surface of the beating plate rotated by the rotating shaft, with their positions slightly shifted in the radial direction around the rotating shaft, so that the rotation of the beating plate is prevented. Sometimes, each of these protrusions hits a filter to remove dust.

〔Example〕

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a dust removal device for a molded filter according to the present invention will be described in detail below with reference to the accompanying drawings.

Figures 1 and 2 are a front view and a cross-sectional view taken along line A-A of the beating board used in the present invention. A shaft 2 is attached, and a plurality of striking protrusions 3 are protruded from the front surface of the striking plate 1. These striking protrusions 3 are sequentially protruded in a radial direction centered on the rotating shaft 2 with their positions slightly shifted. In Fig. 1, 3a to 3i are each of the above protrusions 3.
... are added for convenience, and in this embodiment, a total of nine striking protrusions 3a to 3i are provided protrudingly, and among these striking protrusions, the protrusion 3a is the most protruding from the rotation axis.
It is configured to protrude far away from the rotary shaft 2, and then successively protrude closer to the rotating shaft 2 in the order of 3b to 3i.

Each of the striking protrusions 3 configured as described above is a rubber protrusion that is integrally molded on the front surface of a rubber plate 4 of the same shape adhered to the front surface of the striking plate 1, and each of the striking protrusions 3... As shown in Figure 2, the base 3S is thick and the tip 3T is thin so that it exhibits elasticity and durability. Further, numeral 5 in the figure indicates a gear integrally formed concentrically on the back surface of the beating plate 1.

3 and 4 show an embodiment of a dust removing device using the above-mentioned beating plate 1. In the figure, 6 is a filter frame in which a rectangular molded filter 7 is housed. It is rotatably attached to the inner surface of a cover plate 8, which is configured to be freely attached to the front opening 6a of the filter frame 6, using a rotating shaft 2. In the illustrated embodiment, a total of three beating plates 1... are attached to be rotatable in conjunction with gears 5... in accordance with the size of the molded filter 7, and each beating plate 1... has a striking portion. Each of the elements 3 is provided in a protruding manner so that its tip 3T comes into contact with (engages with) the tip surface of the molded filter 7 as shown in FIG. In addition, the rotating shaft 2 on which the striking plate 1 on the right side of the drawing is attached serves as a driving shaft.
When the rotary shaft 2 is rotated manually or by a motor, the striking plates 1 are rotated in conjunction with each other as shown by the arrows in FIG. 4.

In the illustrated embodiment, a total of three beating plates 1 are used to configure the dust removal device, but this number can of course be increased or decreased as appropriate depending on the size of the molded filter 7. When the molded filter 7 is small, one beating plate 1 can provide a sufficient dust removal effect. Reference numeral 9 in the figure indicates a suction air suction port formed in the cover plate 8. When the suction action of the blower is applied to the inside of the filter frame 6 through the suction port 9, dust is collected from the filter frame 6. Dust-containing air is sucked in from the port 6b side, and as it passes through the molded filter 7, dust is collected and separated, and only purified air enters the suction port 9.
It is configured to be exhausted through the

[Effect]

Since the dust removal device for molded filters according to the present invention has the configuration as described above, when the beating plate 1 is rotated with each of the tapping protrusions 3 in contact with the molded filter 7, each of the tapping protrusions 3... The pleat part (mountain fold part) of the filter 7 is struck to give vibration,
Brush off dust adhering to the filter surface to prevent clogging. In addition, each striking protrusion 3... is the rotating shaft 2
Since the protruding positions are shifted slightly in order in the radial direction with the center at
In this way, the shaped filter 7 is beaten, and the beating effect can be exerted on the entire surface of the shaped filter 7 to which the beating plate 1 corresponds.

Furthermore, as shown in the figure, the beating plate 1 is formed into a special approximately three-legged shape and has a gear 5 integrally formed on the back surface, so that a plurality of beating plates 1... If they are installed in combination as shown in Figs. 3 and 4, each of the striking protrusions 3 of adjacent striking plates 1 will strike their respective areas overlappingly, so that the space between adjacent striking plates 1 will be reduced. Dust can be removed by evenly hitting the molded filter 7 without creating a region where no dust is removed and the dust cannot be removed at all.

In addition, each tapping protrusion 3 is made of an elastic material such as rubber and has a thick base 3S and a thin tip 3T, so it exhibits excellent elasticity and durability and can accurately hit the molded filter 7. Not only can the molded filter 7 be vibrated, but also damage to the molded filter 7 can be prevented.

〔effect〕

As described above, according to the dust removal device for a shaped filter according to the present invention, by rotating the striking plate, each of the striking protrusions protruding from positions shifted in the radial direction can strike the shaped filter to improve its performance. In addition to being able to exhibit a dust removal effect, since each of the above-mentioned striking protrusions is configured to evenly strike all the corresponding surfaces of the molded filter, it is possible to exhibit the advantage that damage to the filter can be reduced. Furthermore, according to the present invention, dust can be removed by evenly hitting a rectangular molded filter regardless of its size, making it possible to use rectangular molded filters, which have been slow to be put to practical use in terms of dust removal. It has a simple structure and can be manufactured at low cost, so its practical value is extremely high.

[Brief explanation of the drawing]

Figure 1 is a front view of the beating plate used in the dust removal device for molded filters according to the present invention, and Figure 2 is the A-
3 is an exploded perspective view showing an example of the present invention, FIG. 4 is a front view thereof, FIG. 5 is a perspective view of a conventional device, and FIG. 6 is a front view thereof. . 1 is the beating board, 2 is the rotating shaft, 3 is the beating protrusion, 3S
is the root, 3T is the tip, and 7 is a rectangular molded filter.

Claims (1)

[Claims for Utility Model Registration] (1) On the front of the beating board rotated by the rotating shaft,
A plurality of striking protrusions are provided with their positions slightly shifted in the radial direction around the rotation axis, and each of these protrusions strikes the filter to remove dust when the beating plate rotates. A dust removal device for molded filters. (2) The above-mentioned utility model registration is characterized in that gears are provided concentrically on the back surface of the beating plate, and the meshing of the gears causes the plurality of beating plates to rotate in conjunction with each other. A dust removal device for a molded filter according to claim 1. (3) The molding according to claim 1 of the above-mentioned utility model registration claim, wherein the tapping protrusion is made of an elastic material such as a rubber material and is made thick at the base and thin at the tip side. Dust removal device for filters.