KR20040043384A - Filter for vacuum cleaner - Google Patents

Abstract

PURPOSE: A filter for a vacuum cleaner is provided to improve the suction efficiency of the vacuum cleaner by increasing the surface area of a filter paper. CONSTITUTION: In a filter(200) for a vacuum cleaner, a filter body(210) includes a front surface(211) having a through hole(211a), a lower surface extended from the lower part of the front surface and having an opening, both side surfaces(213,214) extended from both sides of the front surface and having openings(213a,214a), a rear surface(215) extended from the lower surface and the side surface and having an opening(215a), and an upper opening(216). A porous filter paper(220) stops the openings, and is wrinkled. A cover(230) is detachably installed at the upper opening. The wrinkled surfaces of the filter paper are overlapped each other.

Description

Filter for vacuum cleaner {Filter for vacuum cleaner}

The present invention relates to a vacuum cleaner, and more particularly to a filter for a vacuum cleaner that can be reused semi-permanently.

In general, the vacuum cleaner uses the suction power generated at the suction port by the vacuum generator to suck dust and various foreign substances present on the surface to be cleaned together with the air, and separate the dust and foreign substances contained in the suction air by dust collection means. It has a configuration.

Here, a dust bag is widely used as the dust collecting means. This dust bag is a consumable and when it is full, it is separated from the vacuum cleaner and disposed of together with the foreign matter. Therefore, this replaceable dust bag is a factor to increase the maintenance cost of the vacuum cleaner.

On the other hand, in recent years, a filter that can be semi-permanently reused instead of a dust bag of a single use life has been developed. When the filter is full, the filter is separated from the cleaner body, washed, and then mounted on the cleaner body to collect the foreign matter.

1 and 2 show vacuum cleaners and permanent filters, filed previously by Applicant as an example of such a reusable filter (application number: 10-2002-0028321, filed on May 22, 2002).

As shown in FIG. 1 and FIG. 2, the permanent filter 100 includes a filter body 110 having an outer shape similar to the shape of the dust collecting chamber 11 of the cleaner body 10, the door 120, and the filter 130. )

The filter body 110 includes a front surface 111 having a first opening 111a, upper and lower surfaces 112 and 113 extending from the upper and lower surfaces of the front surface 111, and both sides of the front surface 112. It includes both sides 114 and 115 extending, and a rear surface 116 extending from the upper and lower surfaces 112 and 113 and both sides 114 and 115 and having a second opening 116a. Guide grooves 114a, 114b, 115a, and 115b for receiving fixing guides 12a, 12b, 13a, and 13b are formed on both side surfaces 114 and 115, respectively. In addition, the upper surface 112 is provided with a pair of gripping grooves (112a, 112b), thereby making it easy to grip the permanent filter 100, the mounting of the permanent filter 100 is convenient.

The door 120 is hinged to the first opening portion 111a of the front surface 111 so as to be rotatable open and close, and at the center thereof, a through hole 121 communicating with the air inlet hole 10a of the dust collecting chamber 11. Is formed.

The filter 130 is detachably mounted to the second opening 116a of the rear surface 116, and the filter 130 is maintained by the fixing means 140 and easily removed. The fixing means 140 is a filter mounting portion 141 provided inside the second opening 116a, a rib 142 having a fixing groove 142a, and a rectangular ring-shaped fixing ring inserted into the fixing groove 142a. 143. When the fixing ring 143 is inserted into the fixing groove 142 after the filter 130 is mounted on the filter mounting unit 141, the fixing ring 143 supports the front edge of the filter 130 to filter the filter ( The mounting state of 130 may be maintained. The filter 130 forms a discharge path of the air introduced through the air inlet hole 10a and at the same time serves to filter out fine dust included in the air again during the air discharge process.

The permanent filter 100 has guide grooves 114a, 114b, 115a, and 115b formed on both side surfaces 114 and 115 thereof, and fixed guides 12a, 12b, 13a, 13b) is attached to the dust collecting chamber 11 in a state where the 13b) is inserted. Therefore, the permanent filter 100 maintains a stable mounting state in which the through hole 121 and the air inlet hole 10a of the dust collecting chamber 11 coincide. When the vacuum motor (not shown) of the cleaner is driven, the air including dust and foreign matter introduced through the suction port (not shown) is collected by filtering the dust and foreign matter contained in the air from the air inlet 10a and the permanent filter 100. The purified air is discharged to the outside through the filter 130. On the other hand, when the foreign matter is filled in the permanent filter 100, the permanent filter 100 can be removed from the dust collecting chamber 11 of the cleaner body 10 to discard the foreign matter and re-installed.

However, the permanent filter 100 as described above, because the air introduced into the filter body 110 is discharged to the outside only through the second opening 116a of the rear surface 116 of the filter body 110. Compared to the volume of the filter body 110, the air passage area through which air can pass is relatively small. Therefore, the suction efficiency of the cleaner may be reduced, and the vacuum motor is likely to be overloaded.

In addition, since the area of the filter 130 that can filter out dust and foreign matters is smaller than that of the filter body 110, the filter 130 may be easily blocked by dust and foreign matters. There is discomfort to be given.

The present invention has been made in view of the above problems, an object of the present invention is to provide a vacuum cleaner filter that can increase the suction efficiency of the cleaner by increasing the air passage area and the filtering area of the permanent filter.

1 is a perspective view schematically showing the configuration of a permanent filter and a vacuum cleaner employing the same filed by the present applicant,

Figure 2 is an exploded perspective view showing the configuration of the permanent filter filed by the present applicant,

Figure 3 is an exploded perspective view showing the configuration of a vacuum cleaner filter according to a preferred embodiment of the present invention,

4A and 4B are cross-sectional views illustrating a state in which a vacuum cleaner filter is mounted in a dust collecting chamber of a vacuum cleaner according to a preferred embodiment of the present invention, and

5 is a plan view showing a state in which the filter for a vacuum cleaner according to a preferred embodiment of the present invention is mounted in the dust collecting chamber of the vacuum cleaner.

<Description of Symbols for Main Parts of Drawings>

200; filter 210; filter body

211; front 211a; through

212; 213,214; Both Sides

215; rear 216; open part

212a, 213a, 214a, 215a; openings217; extension

217a; guide rail 218; support protrusion

220; filter paper 230; cover

240; sealing means 241; sealing member

245; pressure ring 248; washer

250; handle

The vacuum cleaner filter according to the present invention for achieving the above object is installed to be detachable in the dust collecting chamber of the cleaner body, the vacuum to filter the foreign matter sucked with the air into the air inlet hole formed to be connected to the outside in the dust collecting chamber A vacuum cleaner filter comprising: a front surface having a through hole, a lower surface extending from a lower side of the front surface and having an opening, two side surfaces extending from both sides of the front surface and having openings, a rear surface extending from the lower surface and both sides and having an opening; A filter body comprising an upper opening; A porous filter paper installed to block the openings; And a cover detachably installed at the upper opening, wherein the filter paper is corrugated to overlap the surface thereof.

According to this, since the filter paper is wrinkled, the surface area of the filter paper is increased and the overall filtering area of the filter is increased. Therefore, the suction efficiency of a vacuum cleaner can be improved.

In the present invention having the above constitution, the filter paper is preferably corrugated in a constant pattern in which surfaces of a predetermined size overlap.

In addition, the front surface is provided with an extension portion to extend from the through hole, the extension portion is preferably provided with a sealing means for sealing between the air inlet hole and the through hole.

Here, the sealing means, the sealing member is installed on the extension portion so that the end thereof protrudes outwardly of the extension portion to be in close contact with the circumference of the air inlet; And pressing means for selectively pressing the sealing member toward the air inlet hole, wherein the pressing means includes: a spiral guide rail provided on an outer circumferential surface of the extension part; And a guide ring inserted into the guide rail on an inner circumferential surface thereof, and a pressure ring flowing back and forth through the extension part by the guide protrusion flowing along the guide rail.

The sealing member may include a tubular body installed to be inserted into the extension part; An adhesion part provided at one end of the body to protrude toward the outside of the extension part and the air inlet hole; And a backflow prevention part provided at the other end of the body to prevent backflow of dust and foreign matter in the filter body.

In addition, the filter body is provided with a handle rotatably provided with a pressing projection, the handle is preferably rotated by the pressing projection is provided on the outside of the cover the cover is in close contact with the filter body. .

In addition, the lower surface of the filter body is preferably provided with a support projection for separating the filter body from the bottom of the dust chamber by a predetermined interval.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the vacuum cleaner filter according to the present invention. For reference, in describing the present invention, the same reference numerals refer to the same parts as those in the related art.

As shown in FIG. 3, the vacuum cleaner filter 200 according to the present invention includes a filter body 210, a filter paper 220, a cover 230, and a sealing means 240.

The filter body 210 has a front surface 211 having a through hole 211a, a lower surface 212 extending from the lower side of the front surface 211, and both side surfaces 213 and 214 extending from both sides of the front surface 211. And a rear surface 215 and an upper opening 216 extending from the lower surface 212 and both side surfaces 213 and 214. Openings 212a, 213a, 214a, and 215a of predetermined sizes are formed in the lower surface 212, both side surfaces 213, 214, and the rear surface 215. In addition, an extension portion 217 is provided on the front side of the front surface 211 so as to extend from the through hole 211a, and a helical guide rail 217a is formed around the extension portion 217. In addition, both sides of the front surface 211 is provided with a fixing rail 211b into which the fixing guide 14 installed inside the dust collecting chamber 11 of the cleaner body 10 is inserted.

The support protrusion 218 is installed on the lower surface 212. The support protrusion 218 is for separating the lower surface 212 from the bottom of the dust collecting chamber 11 of the cleaner body 10 by a predetermined interval, and the lower surface 212 is the dust collecting chamber 11 by the supporting protrusion 218. By being spaced apart from the bottom by a predetermined interval, the air introduced through the through-hole 211a can easily escape to the outside of the filter body 210.

Rotating protrusions 219 are provided at the upper sides of the side surfaces 213 and 214, respectively. The rotating protrusion 219 is for installing a handle 250 that crosses the opening 216 of the filter body 210, and the rotating protrusion 219 is provided with insertion grooves provided at both ends of the handle 250. The handle 250 is rotatably installed with respect to the filter body 210 by being inserted into the 251. The pressing protrusions 252 are provided at the inner sides of both ends of the handle 250, respectively.

The filter paper 220 is made of a porous nonwoven material, and is installed to block openings 212a, 213a, 214a, and 215a of the filter body 210. This filter paper 220 is corrugated so that the surface may overlap. Accordingly, the surface area of the filter paper 220 exposed to the outside of the filter body 210 is larger than the size of the openings 212a, 213a, 214a, and 215a, whereby the air passage area of the filter 200 and The filtering area is increased.

The cover 230 is installed to cover the upper opening 216 of the filter body 210. A rubber sealing rubber 231 is installed around the inner circumferential surface of the cover 230, and a protrusion 232 rounded upward is provided on an outer side of the cover 230. When the handle 250 is rotated toward the cover 230, the pressing protrusions 252 at both ends of the handle 250 flow along the surface of the protrusion 232, and the protrusion body 232 and the cover 230 as a whole are disposed on the filter body. 210 is pressed to the side.

The sealing means 240 includes a sealing member 241 and the pressure ring 245. The sealing member 241 is a tubular body 242 which is installed to be inserted into the extension part 217, and an adhesive part 243 which is installed at one end of the body 242 so as to protrude outward from the extension part 217. And a reverse flow prevention part 244 installed at the other end of the body 242 to prevent backflow of dust in the filter body 210. The inner circumferential surface of the pressing ring 245 is provided with a guide protrusion 246 inserted into the helical guide rail 217a of the extension part 217, and a lever 247 for user operation is disposed on one side of the outer circumferential surface of the pressing ring 245. ) Is provided. A washer ring 248 may be installed between the contact portion 243 and the pressure ring 245 of the sealing member 241. When the user rotates the lever 247 clockwise, the guide protrusion 246 flows along the helical guide rail 217a and the pressure ring 245 is pushed outward of the extension 217. At this time, the end portion of the pressure ring 245 presses the contact portion 243 of the washer ring 248 and the sealing member 241 toward the air inlet hole 10a of the cleaner body 10, and the contact portion 243. The air inlet (10a) is in close contact with the wall surface of the cleaner body 10 is formed is deformed to seal between the air inlet (10a) and the through-hole (211a).

4A is a cross-sectional view illustrating a state in which the filter 200 as described above is mounted in the dust collecting chamber 11 of the cleaner body 10. As shown, the filter 200 is a fixing guide of the dust collecting chamber 11 to the fixing rail 211b (see FIG. 5) in a state where the cover 230 is in close contact with the filter body 210 by the handle 250. Since the filter 200 is mounted in the dust collecting chamber 11 so that the 14 (see FIG. 5) is inserted, the filter 200 has a stable mounting state in which the through hole 211a and the air inlet hole 10a of the dust collecting chamber 11 are matched. Will be maintained. 4B and 5, when the lever 247 of the pressure ring 245 is rotated by the user, the pressure ring 245 flows along the spiral guide rail 217a of the extension 217. While the close contact portion 243 of the sealing member 241 is in close contact with the air inlet hole (10a) side of the cleaner body 10 to seal between the air inlet hole (10a) and the through hole (211a).

When the vacuum motor 15 is driven, air including dust and foreign matter introduced through the suction port (not shown) is introduced into the filter body 210 through the air inlet hole 10a and the through hole 211a of the filter 200. . The dust and foreign substances contained in the air in the filter body 210 are collected and the purified air is filtered on the side surfaces 213 and 214, and the rear surface 215 and the bottom surface 212 of the filter body 210. Passed through 220 is discharged to the outside. At this time, the filter paper 220 is corrugated so that the surfaces overlap each other, and because the surface area exposed to the outside of the filter body 210 is large, the air passage area and dust from which the air in the filter body 210 escapes to the outside are large. Filtering area to filter and foreign matter is large. Therefore, the air sucked into the air inlet 10a can easily escape to the outside of the filter body 210 through the wide surface of the pleated filter paper 220, the filter paper 220 by the dust and foreign matter It is not easily clogged and prevents the vacuum motor from being overloaded.

According to the present invention as described above, openings are provided at both side surfaces, the rear surface and the lower surface of the filter body, and the filter paper provided to block the opening is corrugated so that the surface thereof overlaps, so that the surface area of the entire filter paper is large. Therefore, the air passage area through which the air sucked into the filter body can escape to the outside of the filter body is large, and the filtering area through which dust and foreign matter can be filtered is large. Therefore, the suction efficiency of the vacuum cleaner can be improved, and a filter that can be used for a long time without frequent cleaning like a conventional permanent filter can be implemented.

While the invention has been shown and described with respect to preferred embodiments for illustrating the principles of the invention, the invention is not limited to the construction and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (8)

In the vacuum cleaner filter which is installed to be detachable to the dust collecting chamber of the cleaner body, to filter the foreign matter sucked with the air in the air inlet formed to be connected to the outside of the dust collecting chamber, A filter including a front surface having a through hole, a lower surface extending from a lower side of the front surface and having an opening, both side surfaces extending from both sides of the front surface and having an opening, and a rear and upper opening extending from the lower surface and both sides and having an opening; Body; A porous filter paper installed to block the openings; And And a cover detachably installed at the upper opening portion. The filter paper is a vacuum cleaner filter, characterized in that the surface is pleated so as to overlap. The method of claim 1, The filter paper is a vacuum cleaner filter, characterized in that the pleated in a predetermined pattern that overlaps the surface of a predetermined size. The method of claim 1, The front surface is provided with an extension portion extending from the through hole, the extension portion is provided with a sealing means for sealing between the air inlet hole and the through hole filter for a vacuum cleaner. The method of claim 2, wherein the sealing means, A sealing member installed at the extension portion such that an end portion of the extension portion protrudes outward to be in close contact with the air inlet; And And pressing means for selectively pressing the sealing member toward the air inlet hole. The method of claim 3, wherein the pressing means, A spiral guide rail provided on an outer circumferential surface of the extension part; And And a guide ring inserted into the guide rail on an inner circumferential surface thereof, and a pressure ring flowing back and forth through the extension by the guide protrusion flowing along the guide rail. The method of claim 3, wherein the sealing member, A tubular body installed to be inserted into the extension part; An adhesion part provided at one end of the body to protrude toward the outside of the extension part and the air inlet hole; And And a backflow prevention part provided at the other end of the body to prevent backflow of dust and foreign matter in the filter body. The method of claim 1, A handle having a pressing protrusion is rotatably installed on the filter body, and the handle is rotated so that the cover is in close contact with the filter body by pressing the protrusion provided on the outside of the cover. Vacuum cleaner filter. The method of claim 1, The lower surface of the filter body is a vacuum cleaner filter, characterized in that the support projection for separating the filter body from the bottom of the dust collecting chamber by a predetermined interval.