JP2011156345A - Brush assembly of vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a brush assembly of a vacuum cleaner whose dust separation efficiency is improved and whose pressure loss is reduced though it is compact. <P>SOLUTION: The brush assembly includes a brush unit which is provided with a casing part having contact with a surface to be cleaned and a cyclone dust collection unit one end of which is connected with the brush unit and the other end of which is connected with an extension pipe of the vacuum cleaner. The cyclone dust collection unit is provided with: a cyclone flow passage, which takes in a part of the air discharged from the brush unit and which separates dust in the air by centrifugation; and a bypass flow passage, which immediately transfers the remaining air discharged from the brush unit to the extension pipe. The center axis of the cyclone flow passage is parallel to that of the extension pipe. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a brush assembly of a vacuum cleaner provided with a cyclone dust collector.

  Generally, a canister type vacuum cleaner sucks in air containing dust from the vacuum cleaner via a brush assembly, and the dust is separated by a dust collector built into the main body of the vacuum cleaner via an extension tube and flexible hose. Then, it is an apparatus for discharging the purified air to the outside of the main body of the vacuum cleaner.

  Among the canister type vacuum cleaners, Korean Patent Publication No. 2007-0087357 discloses a structure in which an auxiliary dust collecting device is provided between a brush assembly and an extension tube assembly. The vacuum cleaner having such a structure sucks outside air through the brush assembly, and after the dust is primarily separated by the auxiliary dust collector, the purified air passes through the extension pipe and the flexible hose, and the main body of the vacuum cleaner. The fine dust is secondarily separated by being introduced into the dust collector.

  However, in the vacuum cleaner disclosed in Korean Patent Publication No. 2007-0087357, the auxiliary dust collecting device is provided so as to protrude outward with respect to the extension tube, so that the volume of the overall brush assembly increases. Inconvenient when cleaning a narrow space or a complex structure space.

  In addition, since the auxiliary dust collector is provided so as to protrude at right angles to the extension pipe, after the outside air flowing into the brush assembly is changed to a right angle direction and passes through the auxiliary dust collector, the direction of the right angle is again Move to the extension pipe. Thus, a sudden change in direction of the outside air induces a considerable pressure loss, which causes a problem of reducing the overall cleaning efficiency of the vacuum cleaner.

  In addition, there is a problem in that the efficiency of cleaning is reduced because the fine dust floating away from the surface to be cleaned and floating in front of the brush assembly cannot be sucked.

  Moreover, since only the drum brush is provided, it has been insufficient to efficiently collect the hair and pet hair on the surface to be cleaned.

Korean Patent Publication No. 2007-0087357

An object of the present invention is proposed to solve the above-described conventional problems, and is a compact vacuum cleaner with improved dust separation efficiency and reduced pressure loss. It is to provide a brush assembly.

In order to achieve the above-mentioned object, a brush assembly according to the present invention includes a brush unit having a casing portion that is in contact with a surface to be cleaned, one end connected to the brush unit, and the other end to an extension pipe of a vacuum cleaner. A cyclone dust collecting unit coupled to the cyclone dust collecting unit, wherein the cyclone dust collecting unit receives a part of the air discharged from the brush unit and centrifuges dust in the air; and the brush A bypass flow path that immediately moves the remaining air discharged from the unit to the extension pipe, and the center axis of the cyclone flow path is parallel to the center axis of the extension pipe.
The center axis of the cyclone channel and the center axis of the extension pipe may be configured to be eccentric.
The cyclone dust collecting unit includes a dust cylinder having a bypass air inflow port communicating with the bypass channel on a bottom surface, and a cyclone having a cyclone air inlet port disposed in the dust cylinder and communicating with the cyclone channel on the bottom surface. A cylinder, a holding shaft provided at the center of the cyclone cylinder, a turning guide member that is provided between the cyclone cylinder and the holding shaft, and that ascends and turns the air flowing into the cyclone cylinder, and the dust cylinder One end of the vacuum cleaner may be separably fixed, and the other end may include an air discharge pipe coupled to an extension pipe of the vacuum cleaner.
The cyclone dust collecting unit may further include an inlet guide member that extends from a bottom surface of the cyclone cylinder and guides air flowing into the cyclone cylinder.
The cyclone dust collecting unit may further include a separation lever member that connects or separates the dust cylinder and the air discharge pipe.
The cyclone dust collecting unit may further include a pair of partition walls that divide a space between the dust cylinder and the cyclone cylinder into a dust accommodating chamber and the bypass flow path.

  The cyclone dust collecting unit may further include a dust discharge button for selectively allowing outside air to flow into the dust storage chamber in order to move the dust stored in the dust storage chamber to the main body of the vacuum cleaner.

  A dust guide member extending downward may be provided on a bottom surface of the air discharge pipe.

  Furthermore, at least a part of the cyclone dust collection unit may be configured to be transparent so that the inside of the cyclone dust collection unit can be visually confirmed from the outside.

  An object of the present invention is to provide a brush unit having a casing part for sucking dust on a surface to be cleaned, one end connected to the brush unit, the other side connected to an extension pipe of a vacuum cleaner, and discharged from the brush unit. A cyclone dust collection unit that separates dust by flowing in air and discharges purified air to the extension pipe, and the center axis of the cyclone dust collection unit is aligned with the center axis of the extension pipe The casing part is also achieved by a brush assembly including a plurality of front suction ports for sucking in fine dust that is separated from the surface to be cleaned and floats forward.

  The brush unit may be configured to further include a shutter member that is rotatably provided on a front bottom surface of the casing portion and scrapes hair and pet hair on a surface to be cleaned.

  The cyclone dust collecting unit includes an outer cylinder having an air inlet through which one side of a bottom surface passes, an inner cylinder disposed inside the outer cylinder so as to communicate with the air inlet, and a center of the inner cylinder A holding shaft provided on the inner cylinder, a turning guide member provided between the inner cylinder and the holding shaft, for ascending and swirling the air flowing into the inner cylinder, and an air discharge coupled to an upper end of the outer cylinder And a tube.

  A dust storage chamber for storing dust is formed between the outer cylinder and the inner cylinder, and the cyclone dust collecting unit vacuums the dust stored in the dust storage chamber by selectively flowing outside air. You may comprise so that the opening-and-closing knob moved to the main body of a machine may be further provided.

  An outside air inflow hole may be formed through the outer cylinder, and the open / close knob may be elastically held by the brush unit so as to selectively open and close the outside air inflow hole.

  An inclined guide member that is formed so as to be inclined downward from the bottom surface of the outer cylinder and that collects air discharged from the brush unit and guides it to the air inlet may be provided.

  The inclined guide member includes a first portion formed to be inclined downward from a lower end of the holding shaft, and a pair of second portions extending on both sides of the first portion and facing a predetermined angle. You may comprise.

  At least a part of the cyclone dust collecting unit may be configured to be transparent so that it can be visually confirmed from the outside.

  According to the present invention, since the central axis of the dust cylinder is provided in parallel with the central axis of the extension pipe, the brush assembly is compact, and a space having a narrow and complicated structure can be easily cleaned.

  The present invention can increase the degree of freedom in designing the bypass flow path by configuring the cyclone flow path to be eccentric while being parallel to the central axis of the extension pipe.

  According to the present invention, the pressure loss due to the change in the air flow can be greatly reduced by proceeding forward in the air flow through the cyclone flow path and the bypass flow path without a sudden change of direction.

  In the present invention, a part of the air discharged from the brush unit moves to the extension pipe through the cyclone flow path, and the remaining air immediately moves to the extension pipe through the bypass flow path without going through the cyclone flow path. This has the effect of increasing the dust separation efficiency and reducing the pressure loss.

  In the brush assembly of the present invention, since the cyclone dust collecting unit is arranged so as to have the same central axis as the extension pipe of the vacuum cleaner, the brush assembly is not only compact, but also in front of the upper casing. Since the suction port is formed and can suck up to the fine dust floating away from the surface to be cleaned, there is an effect of improving the cleaning efficiency.

  Further, since the hair and pet hair on the surface to be cleaned can be collected and sucked by the shutter member, there is an effect of improving the cleaning efficiency.

  Further, since the inclined guide member is formed on the bottom surface of the outer cylinder and guides air to the air inlet side, there is an effect of improving the dust collection efficiency in the cyclone dust collection unit.

  Further, since the outer cylinder is made of a transparent material and the dust accommodated in the dust accommodating chamber can be confirmed with the naked eye from the outside, there is an effect that the user can feel satisfaction by confirming the cleaning state.

It is a perspective view showing the state where the brush assembly concerning a 1st embodiment of the present invention was connected with the extension pipe. FIG. 2 is an exploded perspective view of the brush assembly of FIG. 1. It is sectional drawing which shows the state by which the external air inflow hole was closed by the dust discharge button in FIG. It is sectional drawing which shows the state by which the external air inflow hole was open | released by the dust discharge button in FIG. It is the perspective view which looked at the cyclone dust collection unit of FIG. 1 from the front. FIG. 6 is a cross-sectional view taken along line VI-VI displayed in FIG. 5. It is a perspective view which shows the cyclone dust collection air discharge pipe and separation lever member of FIG. It is a perspective view of the brush assembly of the vacuum cleaner which concerns on 2nd Embodiment of this invention. It is the perspective view which looked at the brush assembly of Drawing 8 from the bottom. It is the disassembled perspective view which decomposed | disassembled a part of brush assembly of FIG. It is the top view which removed the upper casing of the brush assembly in FIG. It is a perspective view which shows the shutter member shown in FIG. It is a figure which shows the state of a shutter member when the brush assembly of FIG. It is a figure which shows the state of a shutter member when the brush assembly of FIG. 8 advances. It is a perspective view which shows the cyclone dust collecting unit of the state which removed the opening / closing knob with the brush assembly of FIG. FIG. 9 is a cross-sectional view illustrating a state where an outside air inflow hole is closed by an opening / closing knob in the brush assembly of FIG. 8. FIG. 9 is a cross-sectional view illustrating a state where an outside air inflow hole is opened by an opening / closing knob in the brush assembly of FIG. 8.

  Hereinafter, with reference to FIGS. 1-7, the brush assembly 10 which concerns on 1st Embodiment of this invention is demonstrated.

  As shown in FIGS. 1 to 4, the brush assembly 10 according to the first embodiment of the present invention includes a brush unit 100 and a cyclone dust collection unit 200.

  The brush unit 100 is for sucking air from the surface to be cleaned, and includes a casing part 110, a neck part 120, a drum brush 130, and a turbine fan 140.

  The casing part 110 includes an upper casing 111 and a lower casing 112. These upper and lower casings 111 and 112 are coupled to each other to form an internal space of the casing portion 110.

  A plurality of ribs 113 are provided on the opened bottom surface of the lower casing 112, and a plurality of bottom suction ports 114 are formed. Air including dust on the surface to be cleaned is sucked into the internal space of the casing portion 110 through the bottom suction port 114.

  The neck portion 120 collects air containing dust sucked into the internal space of the casing portion 110 and discharges it to the downstream side, and is coupled to the rear of the casing portion 110. As shown in FIG. 2, a stepped groove 122 is formed on one surface of the neck portion 120, and a pair of rotation shaft holes 124 are formed on both sides of the groove 122.

  The drum brush 130 is rotatably provided in the internal space of the casing part 110 and removes dust on the surface to be cleaned. The drum brush 130 includes a cylindrical drum brush body 131 that is rotatably provided on both sides of the casing portion 110, and a plurality of brushes 133 formed on the outer peripheral surface of the drum brush body 131. One ends of the plurality of brushes 133 are in contact with the surface to be cleaned through the bottom suction port 114 while rotating. Accordingly, when the drum brush body 131 is rotated, the plurality of brushes 133 strike the surface to be cleaned and easily separate dust attached to the surface to be cleaned.

  The turbine fan 140 is provided in the internal space of the casing portion 110, is disposed at a certain distance from the drum brush 130 on the downstream side of the drum brush 130, and is rotated by the air drawn into the internal space of the casing portion 110. Provided.

  The turbine fan 140 and the drum brush 130 are connected by a belt (not shown), and the drum brush 130 is rotated in conjunction with the turbine fan 140. In this case, a pulley (not shown) may be provided on the rotating shaft of the turbine fan 140, and a belt (not shown) may surround the pulley (not shown) and the drum brush body 131.

  The cyclone dust collecting unit 200 is provided such that one side is connected to the rear end of the neck portion 120 and the other side is connected to an extension pipe (P) of the vacuum cleaner. In the cyclone dust collecting unit 200 according to the embodiment of the present invention, only a part of the outside air discharged through the neck portion 120 flows in, filters dust, and discharges purified air to the extension pipe (P). The remaining air discharged through the neck 120 is immediately discharged to the extension pipe (P).

  The cyclone dust collecting unit 200 includes a dust cylinder 210, a cyclone cylinder 220, a holding shaft 230, a turning guide member 240, an air discharge pipe 250, an inlet guide member 260, a dust discharge button 270, and a separation lever member 280.

  As shown in FIGS. 2, 3, and 6, the dust cylinder 210 is a transparent material and has a cylindrical shape. The upper part of the dust cylinder 210 is opened entirely, and the lower part is opened only partially. The lower part is sealed with a low plate 212, and the remaining part is opened to bypass air inlet. 214 is formed. The lower part of the dust cylinder 210 is coupled to the neck part 120, and the air exhaust pipe 250 is separably coupled to the other side. An outside air inflow hole 215 is formed through one side of the lower outer surface of the dust cylinder 210, and a screw thread 218 is formed on the upper outer peripheral surface.

  The cyclone cylinder 220 has a shape with an open top and is provided inside the dust cylinder 210. A cyclone air inlet 222 is formed in the bottom surface of the cyclone cylinder 220, and air discharged through the neck portion 120 flows into the cyclone cylinder 220 through the cyclone air inlet 222. The center axis (x2) of the cyclone cylinder 220 is arranged eccentrically in parallel with the center axis of the dust cylinder 210 and has a length shorter than the height of the dust cylinder 210.

  In the cyclone cylinder 220, a swirling air flow, that is, a cyclone flow path (f <b> 1) is formed inside the cyclone cylinder 220 by the swirling guide member 240 through which air flows through the cyclone air inlet 222. The central axis of the cyclone channel (f1) has the same axis (x1) as the central axis of the cyclone cylinder 220.

  As shown in FIGS. 2, 5, and 6, a pair of partition walls 225 are provided along the longitudinal direction between the cyclone cylinder 220 and the dust cylinder 210, and the gap between the cyclone cylinder 220 and the dust cylinder 210 is provided. Divide into two spaces. A dust accommodating chamber (C1) is formed between the cyclone cylinder 220 and the dust cylinder 210 in a portion where the low plate 212 of the dust cylinder 210 is formed, and a bypass flow path (f2) is formed in a portion where the low plate 212 is not formed. Is formed. At this time, since the center axis (x1) of the cyclone cylinder 220 is slightly decentered in parallel with the center axis of the dust cylinder 210, the width of the dust accommodating chamber (C1) is formed smaller than the width of the bypass flow path (f2). Is done.

  The holding shaft 230 is provided in a rod shape at the center of the cyclone cylinder 220 and has a length shorter than the height of the cyclone cylinder 220.

  The swivel guide member 240 is provided such that a spiral plate connects the cyclone cylinder 220 and the holding shaft 230, and swirls air including dust that has flowed into the cyclone cylinder 220 upward.

  As shown in FIGS. 2 to 7, the air discharge pipe 250 is formed in a cylindrical shape, one side is detachably fixed to the opened upper portion of the dust cylinder 210 by a separation lever member 280, and the other side is a vacuum cleaner. To the extension pipe (P). A cylindrical cyclone outlet 251 is provided at the center of the lower surface of the air exhaust pipe 250, and a bypass air outlet 253 is formed on one side of the bottom surface of the air exhaust pipe 250 so as to be separated from the cyclone outlet 251. Therefore, the purified air discharged from the cyclone flow path (f1) flows into the cyclone outlet 251 and is discharged to the extension pipe (P) through the air discharge pipe 250 and is discharged from the bypass flow path (f2). After flowing into the air discharge pipe 250 via the bypass air outlet 253, the air is discharged to the extension pipe (P).

  The central axis of the air discharge pipe 250 is the same axis (x2) as the central axis of the extension pipe (P), and is parallel to the central axis of the cyclone cylinder 220, that is, the central axis (x1) of the cyclone flow path (f1). Arranged to be slightly eccentric.

  The central axes of the dust cylinder 210, the air discharge pipe 250, and the extension pipe (P) that form the outer shape of the cyclone dust collection unit 200 are eccentric in parallel. Therefore, the size of the bypass channel (f2) can be designed freely and optimally, and the air flow can be prevented from being suddenly broken by the forward air flow. Further, since the cyclone dust collecting unit 200 is disposed in parallel with the extension pipe in a cylindrical shape connecting the brush unit 100 and the extension pipe (P) without protruding outside the extension pipe (P), the brush assembly The volume of the three-dimensional object 10 becomes compact, and the user can more conveniently clean a narrow and complicated space.

  A pair of streamline dust guide members 255 are symmetrically extended downward on both sides of the bottom surface of the air discharge pipe 250 to guide the dust, and to connect the air discharge pipe 250 and the dust cylinder 210. To guide. As shown in FIGS. 5 and 7, the dust guide member 255 has a linear shape on one surface that contacts the inner surface of the dust cylinder, but the other surface that guides the dust is formed in a streamlined manner, so that the dust is stagnant. Without being discharged from the cyclone outlet 251 smoothly. That is, the dust moving flow path that moves from the dust containing chamber (C1) to the cyclone outlet 251 is streamlined by the dust guide member 255, and can be discharged without a dust stagnation section when the stored dust is discharged.

  A blocking plate 257 is formed on the bottom surface of the air discharge pipe 250. The shielding plate 257 includes a semicircular first portion 257a having the same diameter as the cyclone cylinder 220, and a second portion 257b extending outward from both side ends of the first portion 257a.

  The inlet guide member 260 extends downward from the bottom surface of the cyclone cylinder 220 so as to surround a part of the cyclone air inlet 222 and to partition the cyclone air inlet 222 and the bypass air inlet 214. A part of the air discharged through the neck portion 120 is guided to the cyclone air inlet 222 by the inlet guide member 260.

  The dust discharge button 270 is for selectively opening and closing the outside air inflow hole 215 formed in the dust cylinder 210, and is rotatably provided in the rotary shaft hole 124 formed in the neck portion 120.

  The dust discharge button 270 includes an opening / closing portion 272 that seals the outside air inflow hole 215, and a push portion 274 that is formed to extend to the rear side of the opening / closing portion 272. A rotation shaft 278 is formed on both sides of the dust discharge button 270 and is inserted into the rotation shaft hole 124 formed in the neck portion 120. The pushing portion 274 is disposed so as to be seated in the groove 122 formed in the neck portion 120, and the opening / closing portion 272 is disposed so as to protrude from the rear end of the neck portion 120 and cover the outside air inflow hole 215.

  A pair of springs (not shown) are provided between the rotary shaft hole 124 and the rotary shaft 278. After pressing the dust discharge button 270, if the external force is removed, the dust discharge button 270 is removed by the spring (not shown). May be configured to return to the original position.

  The separation lever member 280 is rotatably provided in the air discharge pipe 250 with the air discharge pipe 250 being separated or fixed to the dust cylinder 210. A pair of coupling ribs 282 are formed on the inner surface of the lower portion of the separation lever member 280 along the inner week surface so as to couple with the thread 218 of the dust cylinder 210 (see FIG. 7).

  Therefore, if the separation lever member 280 is rotated in one direction (clockwise) after aligning the position of the air exhaust pipe 250, the coupling rib 282 is coupled with the thread 218, and the air exhaust pipe 250 is fixed to the dust cylinder 210. can do.

  That is, if the dust guide member 255 and the shielding plate 257 of the air discharge pipe 250 are inserted into the dust cylinder 210, the dust guide member 255 is accommodated in the dust accommodating chamber (C1), and the first portion 257a of the shielding plate 257 is obtained. Is connected to the upper surface of the cyclone cylinder 220, and the second portion 257 b of the blocking plate 257 is connected to the upper surface of the partition wall 225. That is, the position of the air discharge pipe 250 in the dust cylinder 210 is aligned by the dust guide member 255 and the blocking plate 257, and then the separation lever member 280 can be rotated to fix the air discharge pipe 250 to the dust cylinder 210. . Further, the blocking plate 257 is connected to the upper surface of the cyclone cylinder 220 and the upper surface of the partition wall 225, and the cyclone flow path (f 1) and the bypass flow path (f 2) are isolated at the upper portion of the dust cylinder 210.

  Hereinafter, as shown in FIGS. 3 to 5, the operation of the brush assembly 10 of the vacuum cleaner according to the first embodiment of the present invention will be described.

  For reference, FIG. 3 is a cross-sectional view of the brush assembly 10 showing a state where the outside air inflow hole 215 is closed, and FIG. 4 shows a state where the outside air inflow hole 215 is opened by the dust discharge button 270. 10 is a cross-section.

  As shown in FIG. 3, while the open / close portion 272 of the dust discharge button 270 closes the outside air inflow hole 215, air containing dust flows into the internal space of the casing 110 from the surface to be cleaned through the bottom suction port 114. Is done.

  The air that flows into the internal space of the casing part 110 is discharged through the neck part 120. Part of the air discharged from the neck portion 120 is guided to the cyclone air inlet 222 by the inlet guide member 260 and then flows into the cyclone cylinder 220. The air that has flowed into the cyclone cylinder 220 is guided by the turning guide member 240 to generate a swirling airflow, and dust contained in the air is centrifuged by the swirling airflow. That is, dust and air are separated by the cyclone flow path (f1) formed in the cyclone cylinder 220.

  The separated dust is stored in the dust storage chamber (C1), and the purified air is discharged through the cyclone outlet 251 through the air discharge pipe 250 to the extension pipe (P).

  The remaining air discharged from the neck portion 120 flows into the bypass flow path (f2) through the bypass air inlet 214 and immediately passes through the air outlet pipe 250 through the bypass outlet 253 and extends to the extension pipe (P ).

  The air thus discharged into the extension pipe (P) is sucked into a dust collector (not shown) installed in the main body (not shown) of the vacuum cleaner through a flexible hose (not shown). After the fine dust is secondarily separated, it is discharged outside the main body of the vacuum cleaner.

  As shown in FIG. 3, the cyclone dust collecting unit 200 according to the embodiment of the present invention has a swirling airflow (f1) formed in a cyclone flow path in the cyclone cylinder 220 in a state where the opening / closing part 272 closes the outside air inlet hole 215. ) Is stored in the dust storage chamber (C1), and the user can check the dust stored in the dust storage chamber (C1) through the transparent dust cylinder 210. Therefore, satisfaction can be felt by being able to confirm the state where cleaning was performed while observing the separated dust with the naked eye.

  In the brush assembly 10 according to the embodiment of the present invention, only a part of the air discharged from the neck portion 120 is purified through the cyclone flow path (f1) and then discharged to the extension pipe (P). Reduced pressure loss increases overall vacuum cleaner cleaning efficiency.

  The brush assembly 10 according to the embodiment of the present invention can adjust the ratio of the suction flow rate that flows into the cyclone cylinder 220 according to the diameter of the cyclone cylinder 220, and the suction according to the diameter of the cyclone cylinder 220 through experiments. Experiments on the flow rate and dust separation efficiency were performed to obtain the results shown in Table 1. As shown in Table 1, the amount of air flowing into the cyclone cylinder 220 in the air exhausted through the neck portion 120 increases as the diameter of the cyclone cylinder 220 increases, and dust separation occurs. It can be seen that the efficiency also increases. It can also be seen that in the cyclone cylinder 220 having the same diameter, the ratio of the suction flow rate and the dust separation efficiency increase depending on whether or not the inlet guide member 260 is installed.

本発明の実施形態に係るブラシ組立体１０は、サイクロン流路（ｆ１）の中心軸（ｘ１）が延長管（Ｐ）の中心軸（ｘ２）と平行に偏心され、ネック部１２０を介して排出される空気の一部がサイクロン筒２２０の下部のサイクロン空気流入口２２２に流入され、サイクロン筒２２２の中心軸、すなわち、サイクロン流路部（ｆ１）の中心軸（ｘ１）に対して上昇する旋回気流が形成されてホコリが分離された後、サイクロン筒２２０の上部に配置するサイクロン出口２５１を経て空気排出管２５０を介した後、延長管（Ｐ）に排出される。すなわち、本発明の実施形態に係るブラシ組立体１０は、サイクロン流路（ｆ１）の空気の進行方向がネック部１２０から排出される空気の進行方向に対して急激な方向転換することなく順方向に進み、サイクロン流路（ｆ１）からサイクロン出口２５１に排出される空気の進行方向が急激な方向転換することなく延長管（Ｐ）に向く方向であるため、圧力損失を減らすことができると共に、全体的な掃除効率の向上が図れる。

In the brush assembly 10 according to the embodiment of the present invention, the center axis (x1) of the cyclone flow path (f1) is eccentric in parallel with the center axis (x2) of the extension pipe (P), and is discharged through the neck portion 120. A part of the air to be introduced flows into the cyclone air inlet 222 at the lower part of the cyclone cylinder 220 and turns upward with respect to the central axis of the cyclone cylinder 222, that is, the central axis (x1) of the cyclone flow path portion (f1). After the airflow is formed and dust is separated, the air is discharged to the extension pipe (P) after passing through the air discharge pipe 250 through the cyclone outlet 251 disposed at the upper part of the cyclone cylinder 220. That is, in the brush assembly 10 according to the embodiment of the present invention, the air traveling direction of the cyclone flow path (f1) does not change rapidly with respect to the traveling direction of the air discharged from the neck portion 120. Since the traveling direction of the air discharged from the cyclone flow path (f1) to the cyclone outlet 251 is the direction toward the extension pipe (P) without sudden change of direction, the pressure loss can be reduced, The overall cleaning efficiency can be improved.

  On the other hand, according to the present invention, a certain amount of dust is stored in the dust storage chamber (C1), and the dust stored in the dust storage chamber (C1) is placed downstream of the cyclone dust collection unit 200, that is, the main body of the vacuum cleaner (not shown). May be discharged). When the user presses the push part 274 of the dust discharge button 270, as shown in FIG. 4, the opening / closing part 272 of the dust discharge button 270 rotates and the open / close part 272 is separated from the outside air inflow hole 215. 215 is opened.

  The air that has flowed into the dust chamber (C1) through the outside air inflow hole 215 flows to the air discharge pipe 250 through the cyclone outlet 251. After the dust stored in the dust storage chamber (C1) is discharged to the air discharge pipe 250 through the cyclone outlet 251 by this flow, the dust collector in the main body of the vacuum cleaner (FIG. Move to (not shown). At this time, as shown in FIG. 5, the dust moving from the dust storage chamber (C1) to the air discharge pipe 250 is suddenly changed by the streamline dust guide member 255 formed on the bottom surface of the air discharge pipe 250. Therefore, the flow loss of dust is reduced because it flows along the moving direction of the streamline. That is, when there is no dust guide member 255, the dust moving from the dust containing chamber (C1) to the cyclone outlet 251 of the air discharge pipe 250 is flowed in a direction changed at right angles, so that a part of the dust passes through the cyclone outlet 251. Although it does not move to the air discharge pipe 250 and remains in the dust cylinder 210, when there is a dust guide member 255, dust is guided by the streamlined dust guide member 255 and shows a streamlined flow. All dust is not moved into the dust cylinder 210 but moved to the air discharge pipe 250 via the cyclone outlet 251.

  In this way, when the user operates the dust discharge button 270, the dust stored selectively can be removed, and the process of removing the dust stored in the dust storage chamber (C1) is performed using the transparent dust cylinder 210. Through the naked eye.

  In the brush assembly 10 according to the embodiment of the present invention, the separation lever member 280 is rotated counterclockwise to separate the air discharge pipe 250 from the dust cylinder 210, and then stored in the dust storage chamber (C1) of the dust cylinder 210. Dust can be removed through the open top.

  If the dust removal is completed, the dust guide member 255 formed on the bottom surface of the air discharge pipe 250 is sandwiched between the dust cylinders 210, the positions are aligned, and then the separation lever member 280 is rotated clockwise to discharge the air. The tube 250 is fixed to the dust cylinder 210.

  Hereinafter, a brush assembly 50 including a cyclone dust collecting unit according to a second embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 8, the brush assembly 50 including the cyclone dust collection unit according to the second embodiment includes a brush unit 500 and a cyclone dust collection unit 600.

  As shown in FIGS. 8 to 11, the brush unit 500 is for sucking air from the surface to be cleaned, and includes a casing portion 510, a neck portion 530, a drum brush 550, a turbine fan 560, and a shutter member 580. .

  The casing unit 510 includes an upper casing 511 and a lower casing 512. These upper and lower casings 511 and 512 are joined together to form an internal space of the casing portion 510. A plurality of ribs 513 are provided on the opened bottom surface of the lower casing 512 to form a plurality of bottom surface suction ports 514. Air including dust on the surface to be cleaned is sucked into the internal space of the casing portion 510 through the bottom surface suction port 514.

  A plurality of front suction ports 515 are formed on the front surface of the upper casing 511. Four front suction ports 515 are formed at the center of the upper casing 511 in the longitudinal direction, and four are formed at the edges. Fine dust floating away from the surface to be cleaned is sucked through the plurality of front suction ports 515.

  The neck portion 530 collects air containing dust sucked into the internal space of the casing portion 510 and discharges it to the downstream side, and is coupled to the rear of the casing portion 510. As shown in FIG. 10, a stepped groove 532 is formed on one surface of the neck portion 530, and a pair of rotating shaft holes 534 is formed on both sides of the groove 532.

  The drum brush 550 is rotatably provided in the internal space of the casing 510.

  As shown in FIG. 11, the drum brush 550 includes a cylindrical drum brush body 551, and a plurality of brushes 552 are implanted on the outer peripheral surface of the drum brush body 551. One ends of the plurality of brushes 552 are in contact with the surface to be cleaned through the bottom suction port 514 while rotating. Accordingly, when the drum brush body 551 is rotated, the surface to be cleaned is hit by the plurality of brushes 552, and dust attached to the surface to be cleaned can be easily separated.

  The turbine fan 560 is provided in the internal space of the casing portion 510, is disposed at a certain distance from the wake side with respect to the drum brush 550, and is provided to be rotated by the air sucked into the internal space of the casing portion 510. It is done. Such rotation of the turbine fan 560 is transmitted to the drum brush 550 by a belt member 570 provided between the turbine fan 560 and the drum brush 550.

  As shown in FIGS. 9 and 12, the shutter member 580 includes a rotating body 581, a substantially rectangular shutter plate 583, and a pair of inclined pieces 585 provided on both side ends of the shutter plate 583.

  The rotating body 581 is coupled to a shaft member 584 that is hinged to the lower casing 512 and is rotated integrally with the shaft member 584.

  The shutter plate 583 extends from the outer peripheral surface of the rotating body 581, and is provided with a plurality of blocking portions 583 a that are spaced apart from each other, and both sides that are formed to extend from the outer peripheral surface of the rotating body 581 on both sides of the blocking portion 583 a. An end 583b is provided. A plurality of air inflow grooves 583c are formed between the plurality of blocking portions 583a. The blocking portion 583a is configured to have a slightly shorter length than the side end portions 583b. Accordingly, the shutter plate 583 is hingedly rotated by the lower casing 512 in conjunction with the rotation of the rotation body 581, and the rotation axis thereof is arranged in parallel with the rotation axis of the drum brush 550.

  The inclined pieces 585 are provided at both end portions 583b of the shutter plate 583, respectively, and one end of each inclined piece 585 is fixedly coupled to the rotating body 581. The inclined piece 585 is provided such that the width of the inclined piece 585 has the same length as the width of the both end portions 583 b of the shutter plate 583. The inclined piece 585 is disposed so as to have a certain angle with respect to the shutter plate 583. An auxiliary inclined piece 588 for guiding the shutter member 580 so that the shutter member 580 can be smoothly rotated is provided between both side end portions 583b of the shutter plate 583 and the inclined piece 585. Similar to the inclined piece 585, the auxiliary inclined piece 588 is provided so that it can come into contact with the surface to be cleaned at one end.

  As described above, the shutter member 580 includes the rotating body 581, the shutter plate 583, and the inclined piece 585, thereby reducing the area of the air inlet formed between the lower casing 512 of the casing portion 510 and the surface to be cleaned. Can be adjusted.

  When the user moves the casing portion 510 backward, the shutter plate 583 rotates clockwise, and as shown in FIG. 13, both end portions 583 b of the shutter plate 583 are brought into contact with the surface to be cleaned, and the shutter plate 583 is moved. It becomes an upright state with respect to a to-be-cleaned surface, and the hair and pet hair which are on a to-be-cleaned surface can be scraped together. When the shutter plate 583 is in the upright state, the interval between the lower casing 512 and the surface to be cleaned is the narrowest state. Therefore, the amount of air flowing into the internal space of the casing portion 510 through the air inlet is reduced, while the vacuum pressure applied to the surface to be cleaned through the bottom suction port 514 is increased.

  On the other hand, when the user advances the casing portion 510, the shutter plate 583 rotates counterclockwise, and the inclined piece 585 of the shutter member 580 comes into contact with the surface to be cleaned as shown in FIG. It becomes. The blocking portion 583a of the shutter plate 583 is disposed so as to have a certain inclination with respect to the surface to be cleaned so that the separation distance from the surface to be cleaned is further separated, and thereby, between the lower casing 512 and the surface to be cleaned. The interval of is maximized. Accordingly, the amount of air that flows into the internal space of the casing unit 510 through the air inlet increases, and lump-like hair or pet hair collected by the shutter plate 583 when the casing unit 510 moves backward is absorbed by the bottom surface inlet 514. Can be easily inhaled.

  The cyclone dust collecting unit 600 is provided so as to be connected to the rear end of the neck portion 530 and separates dust by flowing in air including dust discharged from the internal space of the casing portion 510 through the neck portion 530. , For exhausting purified air.

  As shown in FIGS. 8, 10, 15, and 16, the cyclone dust collecting unit 600 includes an outer cylinder 610, an inner cylinder 620, a holding shaft 630, a turning guide member 640, an air discharge pipe 650, and an inclined guide member 660. And an open / close knob 670.

  The outer cylinder 610 is made of a transparent material having a cylindrical shape with an open top, and is connected to the neck portion 530 and the air discharge pipe 650. An air inlet 617 is formed through the bottom surface of the outer cylinder 610, and an outside air inflow hole 615 is formed through the lower outer surface of the outer cylinder 610.

  The inner cylinder 620 has a cylindrical shape with an open top and is provided inside the outer cylinder 610. The inner cylinder 620 is arranged to have the same central axis as the outer cylinder 610 and has a length shorter than the height of the outer cylinder 610. A part of the bottom surface of the inner cylinder 620 is cut open so that the inside of the inner cylinder 620 communicates with the air inlet 617 of the outer cylinder 610. Between the inner cylinder 620 and the outer cylinder 610, a dust storage chamber C1 'in which separated dust is stored is formed.

  The holding shaft 630 has a rod shape and is provided on the central axis of the inner cylinder 620 so as to have a length shorter than the height of the inner cylinder 620.

  The turning guide member 640 is provided so that a spiral plate connects between the inner cylinder 620 and the holding shaft 630, and ascends and turns air including dust that has flowed into the inner cylinder 620.

  The air discharge pipe 650 is formed in a funnel shape and discharges purified air from which dust has been separated, and is connected to an upper portion of the opened outer cylinder 610. The central axis of the air discharge pipe 650 coincides with the central axis of the outer cylinder 610. The air discharge pipe 650 includes an inclined portion 651 that is connected to the upper portion of the outer cylinder 610, and a cylindrical portion 653 that extends from the inclined portion 651. The cylindrical portion 653 is connected to an extension pipe (not shown) used in a normal vacuum cleaner. The central axis of the air discharge pipe 650 is arranged to have the same central axis as the central axis of the extension pipe (not shown). The air discharge pipe 650 is formed with a dust outflow prevention member 655 that extends from the end of the cylindrical portion 653 toward the inside of the inclined portion 651 so as to become thinner.

  The center axis of the cyclone dust collecting unit 600 of the embodiment of the present invention is the same as the center axis of the extension pipe (not shown), and the cyclone dust collection unit 600 does not protrude outside the extension pipe (not shown). Since the brush unit 500 and the extension pipe (not shown) are formed in a pipe shape, the volume of the brush assembly 50 is reduced, and the user can use the brush assembly 50 conveniently. Can do.

  The inclined guide member 660 collects air discharged through the neck portion 530 and guides it to the air inlet 617 formed on the bottom surface of the outer cylinder 610. The outer cylinder 610 is connected to the neck portion 530. If they are joined, they are arranged to be inserted into the neck portion 530. The inclined guide member 660 is formed so as to be inclined from the bottom surface of the outer cylinder 610, and is extended from both sides of the first portion 661 and the first part 661 formed to be inclined downward from the center of the bottom surface of the outer cylinder 610. The second portion 663, 665 may be configured to be inclined downward from the bottom surface of the outer cylinder 610.

  The first portion 661 and the pair of second portions 663 and 665 are formed to face each other at a predetermined angle with the first portion 661 as a center, and the air discharged from the neck portion 530 is the second portion 663 of the inclined guide member 660. Collected by 665.

  The first portion 661 and the second portions 663 and 665 are formed so as to be inclined with respect to the bottom surface of the outer cylinder 610, and the air discharged from the neck portion 530 faces the bottom surface of the outer cylinder 610 facing the right angle with the air traveling direction. It is guided smoothly without colliding and guided to the air inlet 617.

  As shown in FIGS. 10 and 16, the opening / closing knob 670 is for selectively opening and closing the outside air inflow hole 615 formed in the outer cylinder 610, and the rotation shaft hole 534 formed in the neck portion 530. It is provided rotatably.

  For this purpose, the opening / closing knob 670 includes an opening / closing part 672 that seals the outside air inflow hole 615 and a pushing part 674 formed on the rear side of the opening / closing part 672. A rotation shaft 678 is formed on both sides of the opening / closing knob 670 and is inserted into a rotation shaft hole 534 formed in the neck portion 530 so as to be rotatable. The pushing portion 674 is disposed so as to be seated in a groove 532 formed in the neck portion 530, and the opening / closing portion 672 is disposed so as to protrude from the rear end portion of the neck portion 530 and cover the outside air inflow hole 615. . A pair of springs 676 is provided between the rotation shaft hole 534 and the rotation shaft 678. Therefore, if the external force is removed after the opening / closing knob 670 is pushed, the opening / closing knob 670 is returned to the original position by the spring 676.

  Hereinafter, the operation of the brush assembly 50 according to the second embodiment will be described with reference to FIGS. 16 and 17.

  16 is a cross-sectional view of the brush assembly 50 showing the outside air inflow hole 615 closed by the open / close knob 670, and FIG. 17 shows the brush assembly 50 showing the outside air inflow hole 615 opened by the open / close knob 670. FIG.

  As shown in the figure, in a state where the opening / closing part 672 of the opening / closing knob 670 closes the outside air inflow hole 615, air including dust flows into the internal space of the casing part 510 from the surface to be cleaned through the bottom surface suction port 514. Then, air including dust that is separated from the surface to be cleaned and floats in front of the casing 510 through the front suction port 515 flows into the internal space of the casing 510.

  The air that has flowed into the internal space of the casing portion 510 is discharged through the neck portion 530, and flows into the inner cylinder 620 after being guided to the air inlet 617 by the inclined guide member 660. The air that has flowed into the inner cylinder 620 is guided by the turning guide member 640 to form a swirling airflow, and dust contained in the air is centrifuged by the swirling airflow. The centrifuged dust is stored in the dust storage chamber C1 ′, and the purified air is discharged through the air discharge pipe 650, passes through an extension pipe (not shown) connected to the air discharge pipe 650, and then flexible. After the fine dust is secondarily separated by sucking into a dust collector (not shown) built in the main body (not shown) of the vacuum cleaner through a hose (not shown), the vacuum cleaner Discharged outside the main body.

  As shown in the figure, in a state where the opening / closing portion 672 closes the outside air inflow hole 615, dust separated from the swirling airflow generated inside the inner cylinder 620 is stored in the dust containing chamber C1 '.

  Since the user can check the dust stored in the dust storage chamber C1 ′ through the transparent outer cylinder 610, the user can check the state of cleaning while observing the separated dust with the naked eye, You can feel satisfaction.

  In addition, the brush assembly 50 according to the embodiment of the present invention has a front suction port 515 formed on the front surface of the upper casing 511 and sucks in fine dust floating away from the surface to be cleaned. Since the fine dust can be separated at 600, the cleaning efficiency is further improved.

  Moreover, since the hair and pet hair on the surface to be cleaned can be scraped together by the shutter member 580 and separated by the cyclone dust collecting unit 600, the cleaning efficiency is further improved.

  A certain amount of dust is stored in the dust storage chamber C1 ′, and the dust stored in the dust storage chamber C1 ′ is discharged downstream of the cyclone dust collection unit 600, that is, to the main body (not shown) of the vacuum cleaner. When the user presses the pushing portion 274 of the opening / closing knob 670, as shown in FIG. 10, the opening / closing knob 670 rotates to separate the opening / closing portion 672 from the outside air inflow hole 615, and the outside air inflow hole 615 is opened.

  When the outside air flows into the outside air inflow hole 615, the outside air that has flowed in flows into the air discharge pipe 650, and the dust stored in the dust storage chamber C1 ′ is discharged through the air discharge pipe 650 by this flow, It moves to the dust collector (not shown) in the main body of a vacuum cleaner via an extension pipe (not shown).

  In this manner, the user can selectively remove the dust stored by operating the opening / closing knob 670, and the process of removing the dust stored in the dust storage chamber C1 'can be confirmed with the naked eye.

100, 500 Brush unit 110, 510 Casing part 114 Bottom suction port 130, 550 Drum brush 140, 560 Turbine fan 200, 600 Cyclone dust collection unit 210 Dust cylinder 220 Cyclone cylinder 230, 630 Holding shaft 240, 640 Swivel guide member 250, 650 Air discharge pipe 260 Inlet guide member 270 Dust discharge button 280 Separation lever member 511 Upper casing 512 Lower casing 514 Bottom suction port 515 Front suction port 530 Neck portion 580 Shutter member 581 Rotating body 583 Shutter plate 585 Inclination piece 588 Auxiliary inclination piece 610 Outer cylinder 615 Outside air inflow hole 617 Air inlet 620 Inner cylinder 660 Inclined guide member 661 First portion 663, 665 Second portion 670 Opening / closing knob 672 Opening / closing portion 674 Pushing portion C1 ′ E Li-containing chamber

Claims (17)

A brush unit having a casing portion that is in contact with the surface to be cleaned;
A cyclone dust collecting unit having one end connected to the brush unit and the other end connected to an extension pipe of a vacuum cleaner,
The cyclone dust collecting unit has a cyclone flow path for centrifuging dust in the air by flowing a part of the air discharged from the brush unit, and the remaining air discharged from the brush unit as the extension pipe. A vacuum passage brush assembly, wherein the center axis of the cyclone passage is parallel to the center axis of the extension pipe.   The brush assembly of a vacuum cleaner according to claim 1, wherein the center axis of the cyclone flow path and the center axis of the extension pipe are eccentric. The cyclone dust collecting unit is
A dust cylinder having a bypass air inflow port communicating with the bypass channel on the bottom surface;
A cyclone cylinder disposed in the dust cylinder and having a cyclone air inlet communicating with the cyclone flow path on a bottom surface;
A holding shaft provided at the center of the cyclone cylinder;
A turning guide member that is provided between the cyclone cylinder and the holding shaft, and that ascends and turns the air flowing into the cyclone cylinder;
One end is separably fixed to the upper end of the dust cylinder, and the other end is an air discharge pipe coupled to an extension pipe of the vacuum cleaner,
The brush assembly of a vacuum cleaner according to claim 1, comprising:   The vacuum cleaner brush according to claim 3, wherein the cyclone dust collecting unit further includes an inlet guide member that extends from a bottom surface of the cyclone cylinder and guides air flowing into the cyclone cylinder. Assembly.   4. The brush assembly of a vacuum cleaner according to claim 3, wherein the cyclone dust collecting unit further includes a separation lever member that connects or separates the dust cylinder and the air discharge pipe. 5.   The vacuum according to claim 4, wherein the cyclone dust collecting unit further includes a pair of partition walls that divide a space between the dust cylinder and the cyclone cylinder into a dust storage chamber and the bypass flow path. Vacuum cleaner brush assembly.   The cyclone dust collecting unit further includes a dust discharge button for selectively allowing outside air to flow into the dust storage chamber in order to move the dust stored in the dust storage chamber to the main body of the vacuum cleaner. The brush assembly for a vacuum cleaner according to claim 6.   The brush assembly for a vacuum cleaner according to claim 7, wherein a dust guide member extending downward is provided on a bottom surface of the air discharge pipe.   The brush assembly of a vacuum cleaner according to claim 1, wherein at least a part of the cyclone dust collection unit is configured to be transparent so that the inside of the cyclone dust collection unit can be visually confirmed from the outside. A brush unit having a casing for sucking dust on the surface to be cleaned;
A cyclone in which one end is connected to the brush unit, the other side is connected to an extension pipe of a vacuum cleaner, the air discharged from the brush unit flows in to separate dust, and the purified air is discharged to the extension pipe A dust collecting unit,
The center axis of the cyclone dust collecting unit is positioned in line with the center axis of the extension pipe,
The casing portion has a plurality of front suction ports for sucking in fine dust floating away from the surface to be cleaned,
A brush assembly for a vacuum cleaner, comprising:   The vacuum cleaning according to claim 10, wherein the brush unit further includes a shutter member that is rotatably provided on a front bottom surface of the casing portion and scrapes hair and pet hair on a surface to be cleaned. Machine brush assembly. The cyclone dust collecting unit is
An outer cylinder having an air inlet through which one side of the bottom surface penetrates;
An inner cylinder disposed inside the outer cylinder so as to communicate with the air inlet;
A holding shaft provided at the center of the inner cylinder;
A turning guide member that is provided between the inner cylinder and the holding shaft, and that ascends and turns the air flowing into the inner cylinder;
An air discharge pipe coupled to the upper end of the outer cylinder;
The brush assembly of a vacuum cleaner according to claim 10, comprising:   A dust storage chamber for storing dust is formed between the outer cylinder and the inner cylinder, and the cyclone dust collecting unit vacuums the dust stored in the dust storage chamber by selectively flowing outside air. The brush assembly of a vacuum cleaner according to claim 12, further comprising an opening / closing knob that is moved to the main body of the machine.   14. The outer cylinder has an outside air inflow hole formed therethrough, and the opening / closing knob is elastically held by the brush unit so as to be able to selectively open and close the outside air inflow hole. A brush assembly of a vacuum cleaner as described in 1.   The vacuum cleaner according to claim 12, further comprising an inclined guide member that is formed to be inclined downward from a bottom surface of the outer cylinder and collects air discharged from the brush unit and guides the air to the air inlet. Machine brush assembly. The inclined guide member is
A first portion formed to be inclined downward from a lower end of the holding shaft;
A pair of second portions extending on opposite sides of the first portion and facing a predetermined angle;
The brush assembly of a vacuum cleaner according to claim 15, comprising:   The brush assembly of the vacuum cleaner according to any one of claims 10 to 16, wherein at least a part of the cyclone dust collecting unit is configured to be transparent and can be confirmed with the naked eye from the outside.

Images