KR200155786Y1 - Suction device of vacuum cleaner - Google Patents

Abstract

The present invention relates to a suction device of a vacuum cleaner, the purpose of which is to improve the suction device provided in the extension tube end portion to reduce the manufacturing cost and to facilitate the use of a cleaner.

The suction device of the vacuum cleaner according to the present invention is integrally formed by combining the suction port 31 for cleaning the gap at the tip of the extension pipe 15, and for cleaning the wide bottom surface of the opening 311 of the suction port 31. The suction body 32 is attached and detachably coupled. Accordingly, due to the unification of the parts of the suction port 31, there is no fear of loss of manufacturing cost. In addition, there is an advantage that the vacuum cleaner can be easily used because it is possible to clean the gap or to clean the wide bottom surface by attaching and detaching the suction body (32).

Description

Suction device of vacuum cleaner

The present invention relates to a suction device of a vacuum cleaner, and more particularly, to a suction device used for cleaning a gap and a suction device used for cleaning a wide bottom surface, which can be used more easily by a vacuum cleaner suction device. It is about.

In general, the vacuum cleaner is a suction force is generated by the pressure difference between the inside and the outside of the cleaning main body, by which the foreign matter is sucked and collected by the air by the dust is cleaned. 1 shows the overall configuration of a conventional vacuum cleaner that performs this function.

As shown in the related art, a conventional vacuum cleaner is composed of a main body 1 having a dust bag 1a and a motor 1b, a suction body 5, an extension tube 4, a handle 3, and the like. Extension tube 4 is connected to the main body 1 through the hose (2) to perform a flow path function for guiding the foreign material suction with the air, the suction body 5 is coupled to the other end of the extension tube (4) . The bottom surface of the suction body 5 is formed with a wide opening (not shown) in the longitudinal direction, through which the first suction in the cleaning surface of the foreign matter with the air.

Therefore, when the motor 16 is driven by the user's operation, suction force is generated, and air is sucked at a considerable speed through the suction body 5, the extension tube 4, and the hose 2. In addition, the foreign matter such as dust present on the cleaning surface is sucked through the opening of the suction body 5 together with the suction air and collected in the dust bag 1a in the main body 1, thereby performing cleaning.

Such a vacuum cleaner cleans a wide bottom surface while holding the handle 3 and moving the suction body 5, and when the narrow gap is to be cleaned, it is inappropriate to use the suction body 5 having a large opening. Therefore, in the case of narrow clearance cleaning, the suction body 5 is separated from the extension pipe 4, and then the pipe-shaped clearance cleaning suction port 6 having a small opening is assembled to the other end of the extension pipe 4 to perform cleaning.

However, the conventional vacuum cleaner may be lost because the suction port 6 for cleaning the gap is manufactured as a separate part, and the manufacturing cost is increased due to the part dualization. In addition, according to the part to be cleaned, the inlet 6 and the suction body 5 alternately attached and detached at the other end of the extension pipe 5, so that the use thereof is not easy.

The present invention is to solve this problem, the purpose of the present invention is to integrate the narrow inlet for cleaning the narrow inlet to the end of the extension tube, and to attach and detach the suction body used for cleaning the wide bottom surface in the lower end of the inlet It is to provide a suction device of a vacuum cleaner, which facilitates its use and reduces manufacturing costs and prevents loss by unifying parts of the suction port.

1 is a perspective view of a conventional vacuum cleaner.

Figure 2 is a perspective view schematically showing the overall structure of the vacuum cleaner according to the present invention.

3 is a cross-sectional view showing a coupling state between the suction port and the suction body according to the present invention.

Figure 4 is a perspective view showing a part of the coupling structure of the suction port and the suction body according to the present invention.

5 is an exploded perspective view of the suction port and the suction body according to the present invention.

* Explanation of symbols for main parts of the drawings

31: inlet 311: opening

312: groove 32: suction

321: connector 322: opening

323: stopper 324: cutout

325: projection

The present invention for achieving the above object, in the vacuum cleaner having a main body with a built-in motor and a dust bag for collecting the foreign matter, a hose and an extension tube for guiding the foreign material suction with the air into the main body, the tip of the extension tube A normal coupler is provided at the upper end so as to be connected in communication with the upper end, and a vertical width is narrower than the diameter of the coupler at the lower end, and the opening is formed to expand so that foreign matter is easily sucked in cleaning the gap. In order to be able to be combined, the upper and the horizontal width of the inlet opening is formed in the upper part of the opening portion of the inlet is generally the same as the vertical width and the width of the opening is formed in the lower portion of the opening of the inlet opening wider than the width of the opening for easy cleaning Suction body formed by the side, cut into three sides at both ends of the connector of the suction body When the suction body is coupled, the engaging part provided with a hemispherical protrusion protruding in the center so as to be inserted in contact with the inner surface of the suction port and the opening part, and the projection of the engaging piece is seated and coupled to the opening of the suction port to prevent separation of the suction body. It is characterized by including a groove formed concave in the inner surface.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. Figure 2 shows the overall structure of the vacuum cleaner according to the present invention, Figures 3 to 5 shows a coupling structure of the suction port and the suction body according to the present invention.

The vacuum cleaner according to the present invention generates a suction force and connects the main body 10 in which the foreign matter is collected and the suction device 30 in which the foreign matter is first sucked, the main body 10 and the suction device 30. It consists of the extension pipe 15 etc. which are large.

The main body 10 includes a motor 12, which is a suction force generating means, and a dust bag 11 for collecting foreign matter. And the extension pipe 15 is to connect the main body 10 and the suction device 30, the suction device 30 is coupled to the front end, the handle 14 and the flexible hose 13 is coupled to the rear end It communicates with the inside of the main body 10 through this. Accordingly, foreign matters such as dust sucked together with air through the suction device 30 are collected in the dust bag 11.

On the other hand, the suction device 30 is composed of a suction inlet 31 for cleaning the narrow gap coupled to the end of the extension pipe 15 and the suction body 32 for cleaning the wide bottom surface, its structure is shown in FIGS. Referring to Figure 5 in more detail as follows.

First, the suction port 31 used when cleaning the narrow gap is integrally coupled to the distal end of the extension pipe 15. To this end, the upper end of the suction port 31 is provided with a cylindrical coupling hole 313 formed to have a diameter of D, and is integrally coupled to the front end of the extension pipe 15 made of a pipe shape. And the lower end of the inlet 31 is provided to gradually expand in the horizontal direction from the coupler 313, the opening 311 is opened in the vertical width of L1 and the horizontal width of L2 to facilitate the air suction on the bottom of the lower end Formed. At this time, the vertical width (L1) of the opening 311 is preferably configured to be smaller than the diameter (D) of the coupler 313 so that the suction force evenly spread over the entire opening 311.

The suction body 32 is coupled to the lower end of the suction port 31 integrally provided at the distal end of the extension pipe 15 when cleaning the wide bottom surface. To this end, the upper end of the suction body 32 is formed with a connector 321 stepped to be coupled to the opening 311 of the suction port 31, the opening portion having a width of L5 on the bottom of the lower end of the suction body 32 322 is formed. The connector 321 is configured such that the vertical width L3 and the horizontal width L4 are substantially the same as the opening part 311 of the suction port 31 and the vertical width L1 and the horizontal width L2. It is fitted to the open portion 311 is coupled. In addition, the width L5 of the opening portion 322 of the suction body 32 may be wider in the horizontal direction than the width L2 of the opening portion 311 of the suction port 31 so as to facilitate the cleaning of the wide bottom surface. desirable.

In addition, in order to facilitate the attachment and detachment of the suction body 32, and to prevent the separation thereof, the engaging pieces 323 having the projections 325 are symmetrically provided at both ends of the connector 321, and the suction port ( The recess 311 is formed in the inner surface of the opening 311 of the 31 so that the projection 325 is elastically seated. The engaging piece 323 is formed by vertically cutting a portion of the side end of the connector 321 to have three sides, which is separated from the connector 321 by the notch 324 to have an elastic force. And the projection 325 is prepared to protrude in a hemispherical shape in the center of the engaging piece 323, the groove 312 formed symmetrically on the inner surface of the opening 311 of the suction port 31 when the suction body 32 is coupled Resilient seated on That is, when the connector 321 of the suction body 32 is forcibly pushed into the suction port 31 opening 311, the locking piece 323 is inserted into the elastic member while being elastically deformed by the protrusion 325 and fully inserted. When the projection 325 is restored to be seated in the groove 312.

Accordingly, the protrusion 325 formed on the engaging piece 323 is elastically caught in the groove 312, so that the suction body 32 is integrally coupled to the opening 311 of the suction port 31. At this time, the suction body 32 is not separated from the suction port 31 without applying an artificial force by the elastic force of the locking piece 323.

First, as described above, when the wide bottom surface is to be cleaned, the suction device 32 is configured to elastically couple the suction body 32 to the opening 311 of the suction port 31. In this state, the user grabs the handle 14 and moves the suction body 32 along the floor cleaning surface to perform the cleaning operation. The cleaning surface is opened through the opening 322 of the suction body 32 formed in a wide width L5. Of foreign matter is sucked with the air, which is guided into the main body 10 through the extension pipe 15 and the hose 13 is collected in the dust bag (11).

When the narrow gap is to be cleaned, the suction body 32 is disassembled from the suction port 31. Since the suction body 32 is elastically coupled by the locking piece 323 provided with the protrusion 325, when the suction body 32 is pulled downward, the suction body 32 is separated from the opening 311 of the suction port 31. In this state, if the opening 311 of the suction port 31 is close to the corner or the gap, the foreign matter is sucked together with the air and is collected in the dust bag 11. At this time, the suction port 31 is provided to expand toward the open portion 311 side of the lower end from the coupling hole 313 of the upper end, the air intake is made easier. On the other hand, when the suction body 32 is recombined to the opening 311 of the suction port 31, the wide bottom surface can be easily cleaned again.

Therefore, the inlet 31 for cleaning the gap is integrally configured at the lower end of the extension pipe 15, and the inlet 31 for cleaning the wide bottom surface is attached to the lower end of the inlet 31 so as to be detachably coupled. Of course, there is no need to store the inlet 31 separately, and there is no fear of loss. In addition, disassembling the suction body 32 coupled by the elastic force of the engaging piece 323 can facilitate the clearance cleaning through the suction port 31 of the lower end of the extension pipe (15).

As described in detail above, the suction device of the vacuum cleaner according to the present invention is integrally formed by combining the suction port for cleaning the gap at the tip of the extension tube, the suction port can be attached and detached for cleaning the wide bottom surface in the opening Are combined. Accordingly, the unit cost of the suction device is reduced to reduce manufacturing costs and there is no fear of losing the suction port. In addition, there is an advantage that the vacuum cleaner can be easily used because it is possible to clean the gap or to clean a wide bottom surface through the detachable suction.

Claims (1)

A main body 10 having a motor 12 for generating a suction force and a dust bag 11 for collecting foreign matters therein, and a hose 1 13 and an extension pipe 15 for guiding foreign substances suction with air into the main body 10. In the vacuum cleaner equipped with a conventional coupling sphere 313 made of a diameter of the upper end portion D is provided so as to communicate with the front end of the extension tube 15 and the lower portion than the diameter (D) of the coupling sphere 313 Longitudinal width (L1) is formed narrow and the inlet port 31, the opening portion 311 is formed to extend to the horizontal width of L2 so that foreign matter is easily sucked when cleaning the gap, attaching and detaching to the opening portion 311 of the suction port 31 The connector 321 has a vertical width (L3) and a horizontal width (L4) is formed at the upper end of the suction port 31 and generally the same as the opening (311) vertical width (L1) and horizontal width (L2) Is provided and is formed wider than the opening portion 311 horizontal width (L2) of the suction port 31 at the lower end The suction body 32 having an opening portion 322 having a width of L5 for easy cleaning of the surface is formed by cutting to have three sides at both end portions of the connector 321 of the suction body 32. The engaging piece 323, the projection of the locking piece 323 is provided so that the hemispherical projection 325 is protruded in the center so as to be inserted into contact with the inner surface of the suction port 31 and the opening 311 when elastically deformed inward. The suction device of the vacuum cleaner, characterized in that it has a recess (12) is recessed in the inner surface of the opening portion (311) of the suction port (31) so as to prevent the separation of the suction body (32) is seated.