KR200291449Y1 - Filtering device for vacuum cleaner - Google Patents

Abstract

The present invention relates to a filtering device of a vacuum cleaner. The cleaner of the present invention includes a main body 10 having a suction force generating means therein and a dust collecting container 21 which is detachably installed below the main body and which contains foreign substances. And an upper frame 32 forming a ring shape; A plurality of downward ribs 34 formed at regular intervals at a lower portion of the upper frame; And it is installed between the downward rib 34, the filtering device including a filter unit 36 for passing only the air after filtering the foreign matter is mounted. The filter part 36 may be formed of a nonwoven fabric and may be insert injection molded like a downward rib.

Description

Filtering device for vacuum cleaner

The present invention relates to a vacuum cleaner, and more particularly, to a filtering device of a vacuum cleaner configured to have a simpler structure.

A vacuum cleaner is a device that suctions air containing foreign substances into the inside by using suction power generated by a motor installed inside the main body, and filters foreign substances such as dust among them. It is classified.

The vacuum cleaner shown in FIG. 1 is configured to enable a relatively large dust collection, and exemplarily illustrates a conventional one used for a business having a large cleaning area. As shown, the vacuum cleaner includes a main body 10 in which suction means such as a motor is embedded, and a dust collecting container 21 installed below the main body 10. The dust collecting container 21 is detachably installed at the upper part of the frame 20, and a plurality of wheels 22a and 22b for moving are installed at the lower part of the frame 20, and the user grips and pushes the upper part of the frame 20. The handle 24 is installed.

In addition, a filter 26 is installed inside the dust collecting container 21. As shown in FIG. 3, the filter 26 includes an upper frame 26a forming a peripheral portion of an upper end portion, and a nonwoven fabric filtering portion 26b formed downward from the upper frame 26a and having a constant envelope shape. It consists of. The filter 26 is configured such that the upper frame 26a is supported inside the dust collecting container 21 by covering the open upper end of the dust collecting container 21, for example. Moreover, the said dust collecting container 21 is comprised so that attachment and detachment with the main body 10 using the clamp 23 are possible.

It can be seen that the expander 28 mounted on the bottom of the main body 10 is installed inside the dust collecting container 21. As shown in FIG. 2, the expander 28 includes a circular upper frame 28a fastened to and fixed to a bottom surface of the main body 10, and a plurality of support portions extending below the upper frame 28a. 28b). A constant space is formed between the support portions 28b.

The dilator 28 is for preventing the filtering part 26b from contracting inward by an air flow formed from the outside of the dust collecting container 21 to the center side during the operation of the vacuum cleaner. That is, when the vacuum cleaner is operated, air containing foreign matter is introduced into the dust collecting container 21 through the connection hose 12, and such an air flow acts inward from the outside of the filtering unit 26b. do. The filtering portion 26b made of the nonwoven fabric by the airflow may be contracted inward. The dilator 28 may be formed by the plurality of support portions 28b extending downward. It has a function to prevent the contraction inward.

The dust collecting container 21 is connected to the connection hose 12. And the outside of the connection hose 12 is connected to the extension pipe (14). The upper portion of the extension tube 14 is formed with a handle portion 14a so that the user can grip when using. In addition, the suction unit 16 is installed at the lower portion of the extension tube 14, so that the foreign substance can be sucked while being in close contact with the bottom surface to be cleaned.

Looking at the overall operation of the vacuum cleaner having such a configuration, by the suction force generated by the driving of the suction motor built in the main body 10, the suction unit 16 sucks air containing foreign matter on the bottom surface It will be. This air is sucked into the dust collecting chamber 21 through the extension pipe 14 and the connection hose 12.

The inside of the dust collecting container 21 passes through a filtering part 26b made of a nonwoven fabric. At this time, foreign matter stays on the outside of the filtering part 26b and only air passes through the inside. The air passing through the inside is air that is substantially filtered foreign matter, which is introduced into the body 10 via the expander (28). The air introduced into the main body 10 is completely exhausted to the outside of the main body 10 after the heat dissipation of the motor via the driving motor.

According to the conventional structure having the above-described configuration and operation, it is pointed out the disadvantage that the structure of the filter 26 and the dilator portion 28 becomes complicated. In other words, the filter 26 and the dilator 28 must be manufactured separately, and inconvenience to assemble them separately has been raised in the assembling process. Such a structure, as well as an increase in the number of components, appears to be an unfavorable disadvantage in improving productivity due to the complexity in the assembly process.

An object of the present invention is to provide a vacuum cleaner that can achieve a reduction in manufacturing cost and an improvement in productivity by implementing the structure of the filtering portion more simply.

1 is an exemplary perspective view of a conventional vacuum cleaner.

2 is an exemplary perspective view of a conventional expander.

3 is an exemplary perspective view of a conventional filter.

Figure 4 is an exemplary perspective view of the vacuum cleaner of the present invention.

5 is an exemplary perspective view of the filter member of the present invention.

Explanation of symbols on the main parts of the drawings

10 ..... Cleaner Body 12 ..... Connection Hose

14 ..... Extension tube 16 ..... Suction part

20 ..... Frame 21 ..... Dust Collector

22a, 22b ..... wheel 24 ..... handle

30 ..... Filtering device 32 ..... Upper frame

34 ..... Downward rib 36 ..... Filter section

38 ..... Connections

According to the present invention for achieving the above object, there is provided a vacuum cleaner having a main body with a built-in suction force generating means, and a dust collecting container which is detachably installed below the main body and includes a foreign substance; An upper frame forming a ring shape; A plurality of downward ribs extended at regular intervals at a lower portion of the upper frame; And installed between the down ribs, and comprises a filter unit for passing only the air after filtering the foreign matter; It is characterized in that it is installed on the bottom of the main body.

The filter unit may be formed of a material that filters foreign matter and passes air, and may be formed of, for example, a nonwoven fabric.

In addition, the filter part is preferably insert injection molded like a down rib.

And according to the embodiment of the present invention, the lower end of the plurality of downward ribs, the connecting portion for connecting to each other is formed, it is preferable that the connecting portion is formed integrally with the downward rib.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings. 4 is a perspective view of the vacuum cleaner to which the apparatus of the present invention is applied, and FIG. 5 is a perspective view of the filtering member of the present invention. In the following description of the present invention, the same components as in the prior art will be described with the same reference numerals.

First, the filtering member of the present invention will be described with reference to FIG. 5. The filtering device 30 of the present invention is a component in which a conventional filter and an expander are integrally molded. Looking at a specific configuration, the filtering device 30 includes a circular upper frame 32 formed on the upper portion, and a plurality of downward ribs 34 extending below the upper frame 32.

The upper frame 32 is formed in a ring shape, and has a fastening portion 32a in which a fastening hole for engaging the bottom surface of the main body 10 is formed. In addition, the downward rib 34 may be formed in plural from the lower side of the upper frame 32. For example, the downward rib 34 may be injection molded integrally with the upper frame 32. In addition, since the downward ribs 34 are formed into a plurality of parts having a predetermined interval at a lower portion of the circular upper frame 32, when viewed in plan view, the downward ribs 34 are arranged in a substantially circular shape, and are disposed between adjacent downward ribs 34. There is a regular interval.

And according to the present invention, the filter portion 36 made of a nonwoven fabric is provided between the downward rib 34. The filter portion 36 is made of a nonwoven fabric and configured to allow air to pass through and to filter foreign matter, and is attached between the plurality of downward ribs 34. By providing the filter unit 36 between the downward rib 34 in this way, it can be seen that it can have a function of combining the conventional expander and the filter.

As long as the filter unit 36 is configured to be attached between the downward ribs 34, the filter unit 36 may be fixed in any form. For example, when the upper frame 32 and the downward rib 34 are integrally injection molded, it is also possible to insert injection molding the filter part 36 between the downward rib 34.

Even if the filter unit 36 is not a non-woven fabric, it may be formed of any material as long as it can pass air and filter foreign substances, and may be formed of a known paper filter, a fiber filter, a synthetic resin filter, or the like. Of course it is also possible to use.

In addition, at the lower end of the downward rib 34, a connection part 38 capable of connecting the plurality of downward ribs 34 to each other is formed. By the connecting portion 38 will be able to sufficiently secure the strength of the down rib 34 and the filter portion 36 provided therebetween.

The upper frame 32, the down rib 34, and the connecting portion 38 are injection molded from a synthetic resin material, and may be integrally injection molded. And as described above, it will be possible to insert injection molding integrally with the filter portion 36.

Next, the operation of the vacuum cleaner according to the present invention will be described with reference to FIG. 4. The user can perform the cleaning by moving the vacuum cleaner while holding and pushing the handle 24 installed on the frame 20. When the vacuum cleaner starts to be driven, it is generated by the driving of the suction motor built into the main body 10. By the suction force, air containing foreign matter on the bottom surface is sucked into the suction unit 16. This air is introduced into the dust collector 21 through the extension pipe 14 and the connection hose 12.

The air introduced into the dust collecting container 21 passes through the filter part 36 between the down ribs 34 of the filtering device 30. Since the filter part 36 is made of a material capable of filtering foreign matters such as a nonwoven fabric, air is passed through, but foreign matters such as dust do not pass, and are filtered from the outside thereof.

The air passing through the inside is substantially filtered air, which is introduced into the main body 10 from the inside of the filtering device (30). The air introduced into the main body 10 is completely exhausted to the outside of the main body 10 after the heat dissipation of the motor via the driving motor.

As described above, according to the present invention, it can be seen that the basic technical idea is to configure the filtering device 30 in which the conventional expander and the filter are integrated to have a simple structure as compared with the conventional one.

And within the scope of the basic technical idea of the present invention as described above, many other modifications are possible to those skilled in the art, as well as the present invention should be interpreted based on the appended claims.

According to the present invention as described above, it can be seen that one filter device 30 is implemented by integrating a conventional expander and a filter. Therefore, as compared with the related art, it is possible to implement the filtering device structurally simple, it is possible to expect the effect of reducing the components and the productivity in the assembly process.

In addition, according to the present invention, since only the filtering device 30 is designed to be mounted inside the dust collecting container 21, the additional benefit of convenient discharge of foreign matter collected in the dust collecting container to the outside or management of the filtering member is convenient. You can also expect.

Claims (5)

In the vacuum cleaner having a main body (10) with a built-in suction force generating means, and a dust collector (21) which is detachably installed from below the main body and includes a foreign matter; An upper frame 32 forming a ring shape; A plurality of downward ribs 34 formed at regular intervals at a lower portion of the upper frame; And It is provided between the downward rib 34, and comprises a filter unit 36 for filtering only the foreign matter and then passing air; Filtering device, characterized in that installed on the bottom of the main body (10). The filtering device according to claim 1, wherein the filter part (36) is formed of a nonwoven fabric. The filtering device according to claim 1 or 2, wherein the filter part (36) is insert injection molded with respect to the downward rib. The filtering device according to claim 1 or 2, wherein the lower end portions of the plurality of downward ribs are formed with connecting portions (38) for connecting each other. The filtering device as claimed in claim 4, wherein the connection part is integrally formed with the downward rib.