KR20030017184A - Filter device for vacuum cleaner - Google Patents

Abstract

PURPOSE: A dust filter for a vacuum cleaner is provided to improve cleaning efficiency by removing small foreign matters stuck on the surface of a dust filter. CONSTITUTION: A dust filter for a vacuum cleaner comprises an assembling piece(25) having many assembling recesses(25a) connected with an assembling portion and a discharge guide hole(25b) identical to a discharge hole, an outer case(21) extending from the bottom face of the assembling piece and having many filtering holes(24a) formed on a cylindrical wall face(24) and a connecting portion(21a) in the lower end, a lower case(23) having an assembling unit(23a) fixed with a fixing portion, and filter bodies(22) received in the outer case.

Description

Filter for vacuum cleaners {Filter device for vacuum cleaner}

The present invention relates to a dust filter for a vacuum cleaner, and more particularly, after the large amount of dust is first filtered out of the air containing the foreign matter sucked through the suction unit by the separating plate of the dust container, fine dust is separated from the air. It relates to a vacuum filter dust filter configured to be detachable bent filter portion constituting a dust filter having a function to.

1 shows a configuration of a general vacuum cleaner. As shown, the vacuum cleaner includes a main body 1 having a built-in suction means for sucking air in the room, and a suction nozzle 2 into which air is introduced from the bottom surface by the suction force generated in the main body. .

On the other hand, the main body (1), and the lower body 5 is the suction means is received and fastened; The lower body 5 is composed of an upper body 6 having a built-in electric part (not shown) for controlling the vacuum cleaner so that the parts embedded in the lower body 5 are not exposed to the outside. In addition, wheels 8 are fastened to both sides of the body so that the main body 1 can smoothly move the bottom surface, and the wheels 8 have foreign substances separated from the air sucked through the suction nozzles 2. The discharge part 8a which the state air discharges from the main body 1 is comprised.

Between the main body 1 and the suction nozzle 2, a suction hose 3b made of a flexible material, an operation unit 4 connected to an end of the suction hose 3b, and the operation unit 4 ) And an extension tube 3a for connecting the suction nozzle 2 are sequentially installed, so that the suction force generated in the main body 1 can be transmitted to the suction nozzle 2.

When electricity is applied through the electric wire 9 connected to the built-in power supply part (not shown) of the main body 1, the vacuum cleaner will be in an operation standby state. At this time, if the user adjusts the suction step by using the button of the operation unit 4, the suction force suitable for each step is generated by the suction means built in the main body. The suction force generated through the suction means is transmitted to the suction nozzle 2 via the suction hose 3b and the extension pipe 3a which are fastened to the suction connector 3c. The air containing the foreign matter such as dust or lint is sucked by the suction force transmitted to the suction nozzle 2, and the air containing fine dust and the like is separated by the dust container 10 from the sucked air and the discharge part 8a is discharged. Cleaning is performed while the process of discharging to the outside of the main body (1).

As described above, the process of filtering foreign matter from the dust container 10 will be described with reference to the perspective view of FIG. 2. 2 illustrates a dust container 10 in a state in which a conventional dust filter 14 is fastened, and on one side, air introduced into the main body through a suction connection portion is guided to flow in a tangential direction along an inner wall of the dust container. A suction guide 12 is formed, and a separation plate 13 having a hole 13a formed therein is assembled so that a large amount of dust contained in the air introduced through the suction guide is assembled therein. The other outer wall of the part 12 is composed of a handle 15 formed to be easily detached from the main body (1). In the cover 11 configured to open and close the upper part of the dust container 10 configured as described above, an ejection opening 11a is formed at the center thereof, and a dust filter 14 is formed at the bottom edge of the ejection opening 11a. Is fastened.

For reference, FIG. 3 illustrates a cross-sectional view of the dust filter 14 in a state cut in the transverse direction. The filter body 14b of the dust filter 14 has a cylindrical shape in which pleats in the longitudinal direction are repeated in the circumferential direction. The lower fixing portion 14a for fixing and supporting the bottom of the filter body 14b is formed with a protruding rib 14a 'to surround the bottom of the filter body 14b. It is preferable that the filter body 14b of the dust filter 14 is formed of a material that can secure a certain strength or more and take shape upon cleaning in consideration of the strong flow of air. For example, it can also be comprised by the polyester material which can be utilized as a fiber material. In addition, the upper and lower fixing portions (not shown) and the lower fixing portion 14a for fixing and supporting the upper and lower portions of the filter body 14b are also configured to maintain the cylindrical shape of the filter body 14b, and at the same time, It may also be composed of possible synthetic resin materials.

Since the filter body 14b is able to expand the contact surface area with the flowing air by forming a plurality of pleats in the longitudinal direction, the dust collecting efficiency is maximized to the maximum. That is, it is filtered by the filter body 14b so that fine foreign matter is not included in the air discharged through the discharge port 11a. If fine foreign matter is accumulated on the surface of the filter body 14b of the dust filter 14 through this process, the flow of air is not smoothly made. Therefore, the foreign matter on the surface of the dust filter 14 should be brushed off or washed.

However, according to the conventional configuration as described above, the following disadvantages are pointed out.

When the dust filter 14 is separated from the cover 11, and when the foreign matter on the surface is brushed off or washed, there is a problem in that the foreign matter caught between the pleats of the filter body 14b cannot be removed. That is, the filter body 14b is made of a flexible material, but since the upper and lower portions are fixed to the upper fixing part and the lower fixing part, respectively, there is a limit in removing foreign matters between the wrinkles maintained at regular intervals.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dust filter for a vacuum cleaner which is configured such that the filter body can be easily separated or assembled in order to solve the problems as described above.

Another object of the present invention is to provide a dust filter for a vacuum cleaner that can maintain a constant dust collecting efficiency by effectively performing a cleaning operation for separating foreign matter from the dust filter.

1 is a perspective view of a general vacuum cleaner.

Figure 2 is a partial perspective view of a dust container for showing a state of mounting a conventional dust filter for a vacuum cleaner.

3 is a cross-sectional view for schematically showing the dust filter shown in FIG.

Figure 4 is a perspective view of the disassembled state to show the configuration of the dust filter for a vacuum cleaner according to the present invention.

Figure 5 is a cross-sectional view of the state cut in the transverse direction to show the filter body is built in the dust filter for a vacuum cleaner according to the present invention.

6 is a perspective view of a filter body according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

20 ..... Dust Filter 21 ..... Outer Case

21a ..... Fastening part 22, 32 ..... Filter body

23 ..... Lower Case 23a ..... Assembly

24 ..... wall 24a ..... hole

25 ..... Assembly 25a ..... Assembly groove

25b ..... Discharge Guide

The dust filter for a vacuum cleaner according to the present invention includes a plurality of assembling grooves formed to be fastened to an assembling portion formed at a bottom of a discharge port of a cover, and an assembling piece having an ejection guide formed at a center thereof to coincide with a discharge port. ; An outer case in which a plurality of filter holes are formed on a wall surface extending from the bottom of the assembly piece, and a fastening portion is formed at a lower end thereof; A lower case formed on an inner wall of the assembly part formed to be fixed to the fastening part; The technical gist of the present invention includes a filter body receivable inside the outer case.

The fastening part and the assembling part may be formed in a spiral shape so as to be assembled or separated by rotating.

In addition, the assembly piece and the lower case may be formed with a fixed rib in a portion where the top and bottom of the filter body abuts. The fixed rib is preferably molded to correspond to the shape of the filter body.

On the other hand, the outer case and the lower case is preferably molded in a cylindrical shape to minimize the resistance of the air. Of course, it is also possible to form the wall surface of the outer case in a polygon, the shape of the lower case fastened to the bottom of the outer case can also be molded to correspond to the outer case. The filter body embedded in the outer case is formed in the same shape as the outer case to facilitate the flow of air. That is, it is effective that the filter body of the dust filter is configured such that the outside of the filter body contacts the inner diameter of the outer case so as to be accommodated in the outer case.

In addition, the filter body may be configured in the form of a cylinder in which the upper and lower sides are open and wrinkled in the longitudinal direction. In addition, the filter body may be configured to be in an unfolded state, so that the upper and lower sides of the filter body may be deformed into a cylindrical shape to be accommodated inside the outer case.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings. For reference, in order to effectively explain the present invention, the same components as those of the general vacuum cleaner and the dust container will be used by using the reference numerals described with reference to FIGS.

Figure 4 shows a perspective view of the disassembled state to show the configuration of the dust filter for a vacuum cleaner according to the present invention. 5 is a cross-sectional view of the dust filter in a state in which the filter body is built in the transverse direction. As shown, the dust filter 20 is largely comprised of the outer case 21, the filter body 22, and the lower case 23. As shown in FIG. In addition, the assembly piece 25 formed at an upper portion of the outer case 21 is fastened to the bottom surface of the lid 11 of the dust container shown in FIG. 2. At this time, the fixing piece corresponding to the assembly groove 25a on the bottom surface of the cover 11 so that a plurality of assembly grooves 25a formed in the circumference of the assembly piece 25 can be inserted and fixed (not shown) Of course) is molded. As described above, the discharge guide port 25b is formed at the center of the assembly piece 25 of the outer case 21 assembled to the bottom of the cover 11, and the discharge guide port 25b is formed at the discharge port of the cover. 11a) must be assembled to match the position of the air flows smoothly.

On the other hand, the cylindrical wall surface 24 formed to extend downward from the assembly piece of the outer case 21 is formed with a plurality of filter holes 24a, the fastening portion 21a at the lower end of the wall surface 24 Is molded.

The bottom of the outer case 21 is open, and the lower case 23 is formed to freely open and close the lower end of the open outer case 21. In addition, an assembly portion 23a is formed on the inner wall of the lower case 23 so as to be assembled with the fastening portion 21a.

The filter body 22 accommodated inside the outer case 21 is pleated in the longitudinal direction, and has a cylindrical shape in which the upper and lower portions are open.

The dust filter 20 configured as described above, after storing the filter body 22 through the bottom of the open outer case 21, the bottom of the outer case 21 using the lower case 23. To close. At this time, the assembling portion 23a of the lower case 23 is engaged with the fastening portion 21a formed at the lower end of the outer case 21 to be fixed. The fastening part 21a and the assembling part 23a may be assembled while rotating in a spiral shape. In addition, the fastening portion 21a and the assembling portion 23a may be assembled to correspond to each other in the form of a protrusion and a groove.

The dust filter 20 assembled as described above is assembled to contact the bottom surface of the cover 11, and then closed on the upper part of the dust container 10 that was opened using the cover 11 so that the main body 1 of the vacuum cleaner 1. Will be able to proceed to cleaning by tightening. When proceeding with the cleaning, looking at the process of collecting dust in the dust container 10 as follows.

First, air containing foreign substances introduced into the main body 1 through the suction nozzle 2 is introduced into the dust container 10 along the suction guide 12. Among the foreign substances introduced into the dust container 10, the foreign substance having a large mass is separated to the bottom of the separator plate 13, and the foreign substance having a small mass flows with the moving air to escape through the discharge port 11a. Separated by the dust filter 20 is to be accumulated inside the dust bin. Looking at the process of separating the foreign matter by the dust filter 20, the bulky foreign matter does not pass through the plurality of filter holes 24a formed in the wall surface 24 of the outer case 21 is formed in a cylindrical shape And will build up on top of the separator. The fine foreign matter passing through the plurality of filter holes 24a does not pass through the filter body 22 configured in the outer case 21 and is separated from the moving air. The fine foreign matter thus separated is accumulated on the surface of the filter body 22. Then, the air separated by the filter body 22 is to be exhausted to the outside of the dust container 10 through the discharge port (11a) in communication with the discharge guide port (25b). As such, when the cleaning is repeatedly performed, when the air is prevented from flowing due to the fine foreign matter on the surface of the filter body 22, the cleaning efficiency is lowered. In order to prevent this phenomenon, it is preferable to clean the inside of the dust container 10 in accordance with the cleaning time.

In order to clean the dust container 10, first, the handle 15 is gripped and pulled to separate the dust container 10 from the main body 1 of the vacuum cleaner. Then, the cover 11 covering the upper part of the dust container 10 separated from the main body 1 is opened, and the dust container 10 is tilted to empty foreign matter collected therein. On the other hand, by removing the dust filter 20 is fastened to the bottom of the cover 11 to remove the lower case 23 from the outer case 21, the filter body that is stored inside the outer case 21 Pull out (22) to the outside. In this manner, the dust filter 20 in the separated state may be washed with water or a foreign substance on the surface by using a brush. At this time, when the filter body 22 to maintain the pleated state is pulled in the width direction of the pleats, the spacing between the pleats becomes wide, so that foreign substances between the pleats can be easily removed. In other words, being able to effectively remove foreign matters accumulated in the corners due to the wrinkles maintaining a constant interval is possible by temporarily disintegrating the corners while pulling the flexible filter body 22 from both sides. Will be.

Before closing the cover to the dust container cleanly removed foreign matter through the process as described above, the filter body is built through the bottom of the outer case and closes the bottom of the outer case opened to the lower case. In this way, the dust filter in which the filter body is embedded is fastened to contact the bottom of the cover, and the upper side of the dust container is closed with the cover. The dust can be fastened to the body to clean. That is, the dust container 10 can be seen that the assembly is completed and the cleaning can be performed when the order of separation in the reverse order.

On the other hand, although the filter body 22 shown in FIG. 4 has a cylindrical shape, according to another embodiment of the present invention, the filter body 32 in an unfolded state may be configured as shown in FIG. The filter body 32 unfolded in a rectangular shape can be achieved to achieve the object of the present invention, even if the filter body 32 is wound in a cylindrical shape so as to be received in contact with the inner wall of the outer case 21.

And, according to another embodiment of the present invention, it is also possible to form a fixed rib that can fix the upper and lower ends of the filter body (22, 32). The fixing rib is preferably formed on the inner bottom of the lower case 23 or the inner wall of the assembly piece 25 to be spaced apart from the wall surface 24 of the outer case 21 by a predetermined interval. That is, the shape of the filter body may be maintained only when the fixing ribs are molded by the interval corresponding to the pleat width of the filter bodies 22 and 32 accommodated to contact the wall surface 24. The shape of the filter bodies 22 and 32 embedded in the outer case 21 by the air flowing strongly through the plurality of filter holes 24a by the fixed ribs formed as described above can be completely prevented. It will be possible to increase the dust collection efficiency.

As described above, the configuration to maintain the shape of the filter body (22, 32) embedded in the outer case 21 is of course possible to be applied in various forms.

As described above, it is understood that the present invention has a basic technical idea that the filter body for separating fine dust and air can be stored or separated in the dust filter to facilitate the cleaning of the dust filter. Can be.

And within the scope of the basic technical spirit of the present invention as well as many other modifications are possible to those having ordinary skill in the art, the present invention will be construed by the appended claims.

According to the present invention configured as described above it can be expected the following effects.

According to the present invention is expected to improve the cleaning efficiency by removing fine foreign matter from the filter body pleated in the longitudinal direction. In addition, since the filter body is separated from the dust filter to be washed and built in, the shape of the filter body can be kept constant so that dust collection can be effectively performed.

Claims (8)

An outer case comprising an assembly piece having an ejection guide formed to be open at the center, a plurality of holes formed in the wall surface extending from the bottom surface of the assembly piece, and a fastening part formed at a lower end thereof; A lower case in which an assembly part is formed to be fixed to the inner wall by being coupled to the fastening part; Dust filter for a vacuum cleaner, characterized in that it comprises a filter body that can be stored or detached inside the outer case. According to claim 1, wherein the outer case and the lower case; Dust filter for vacuum cleaner, characterized in that formed into a cylindrical shape. According to claim 1, The fastening portion and the assembly portion; Dust filter for a vacuum cleaner, characterized in that each is formed by a spiral projection. According to claim 1, The fastening portion and the assembly portion; Dust filter for a vacuum cleaner, characterized in that the molded shape corresponding to each of the projection and groove. The method of claim 1, wherein the filter body; Pleat is formed in the longitudinal direction, the upper and lower portions are open, the dust filter for a vacuum cleaner, characterized in that it is stored so as to contact the inner wall of the outer case. According to claim 1 or 5, wherein the filter body; Pleat is formed in the longitudinal direction, the upper and lower portions of the vacuum cleaner dust filter, characterized in that made of a cylindrical. According to claim 1 or 5, wherein the filter body; The dust filter for vacuum cleaners, characterized in that the pleats are molded in the longitudinal direction, and the unfolded rectangular shape is rolled in a cylindrical shape and stored in an outer case. According to claim 1, The assembly piece and the lower case; A dust filter for a vacuum cleaner, characterized in that for forming a fixed rib in a portion where the top and bottom of the filter body abuts.