KR20110088888A

KR20110088888A - Brush assembly for vacuum cleaner

Info

Publication number: KR20110088888A
Application number: KR1020100008605A
Authority: KR
Inventors: 오장근
Original assignee: 삼성전자주식회사
Priority date: 2010-01-29
Filing date: 2010-01-29
Publication date: 2011-08-04

Abstract

PURPOSE: A brush assembly of a vacuum cleaner is provided to improve cleaning efficiency and make a structure light and compact. CONSTITUTION: A brush part(100) includes a casing part for inhaling the dust of the side to be cleaned(110). A cyclone dust collection part(200) includes one side connected to the brush part and the other part connected to the extended pipe of the vacuum cleaner. The cyclone dust collection part separates the dust from the air, discharged from the brush part, and discharges the purified air through the extended pipe.

Description

Brush assembly for vacuum cleaner

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

In general, the canister vacuum cleaner sucks air including dust on the surface to be cleaned through the brush assembly, enters the dust collector built into the vacuum cleaning body through the extension pipe and the flexible hose, separates the dust, and vacuums the purified air. It is a device for discharging to the outside of the cleaning main body.

Among such canister vacuum cleaners, Korean Patent Laid-Open Publication No. 2007-0087357 installs an auxiliary dust collector between a brush assembly and an extension tube assembly to separate dust sucked from the brush assembly from the auxiliary dust collector and then purged air. Disclosed is a configuration in which fine dust is secondarily introduced into the dust collector of the vacuum cleaner main body through an extension tube and a flexible hose.

However, since the vacuum cleaner disclosed in Korean Patent Laid-Open Publication No. 2007-0087357 is installed to protrude outward with respect to the extension pipe, it has an inconvenience when using a narrow space or a complicated structure space through the volume of the brush assembly. .

In addition, the fine dust floating in the front of the brush assembly separated by the surface to be cleaned could not be sucked, there was a problem that the cleaning efficiency is not good.

Moreover, since only the drum brush was provided, it was not enough to efficiently scrape the hair and pet hair on the surface to be cleaned.

The present invention has been made to solve the conventional problems as described above, and an object of the present invention is to provide a brush assembly of a vacuum cleaner having a compact structure and improved cleaning efficiency.

In order to achieve the above object of the present invention, the brush assembly of the present invention comprises a brush unit having a casing portion for sucking dust on the surface to be cleaned; And a cyclone dust collecting unit having one end connected to the brush unit and the other side connected to the extension tube of the vacuum cleaner to introduce the air discharged from the brush unit to separate dust and discharge the purified air to the extension tube. The central axis of the cyclone dust collecting unit is located in line with the central axis of the extension pipe, the casing portion is characterized in that it comprises a plurality of front suction openings for sucking the fine dust floating in the front spaced apart from the surface to be cleaned.

The brush unit may be configured to further include a shutter member rotatably installed on the front bottom surface of the casing part to scrape hair or pet hair on the surface to be cleaned.

The cyclone dust collecting unit, the outer cylinder having an air inlet through which one side of the bottom surface; An inner cylinder disposed inside the outer cylinder to communicate with the air inlet; A support shaft installed at the center of the inner cylinder; A pivoting guide member installed between the inner cylinder and the support shaft to pivot up the air introduced into the inner cylinder; It may be configured to include; and an air discharge pipe coupled to the top of the outer cylinder.

A dust accommodating chamber is formed between the outer cylinder and the inner cylinder, and the cyclone dust collecting unit further includes an opening and closing knob for selectively introducing external air to move the dust stored in the dust accommodating chamber to the vacuum cleaner body. Can be configured to

The external air inlet hole is formed through the outer cylinder, and the opening and closing knob may be configured to be elastically rotatably supported by the brush unit to selectively open and close the external air inlet hole.

It is formed to be inclined downward from the bottom of the outer cylinder is inclined guide member for collecting the air discharged from the brush unit to guide the air inlet; may be configured to include.

The inclined guide member may include a first portion formed to be inclined downward from a lower end of the support shaft; and a pair of second portions extending to both sides of the first portion and facing at a predetermined angle.

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 above, in the brush assembly of the present invention, since the cyclone dust collecting unit is disposed to be the same central axis as the extension tube of the vacuum cleaner, the brush assembly is not only compact, but also the front suction port is formed on the front surface of the upper casing, Since even the fine dust floating in space can be sucked, the cleaning efficiency is improved.

In addition, since the hair of the surface to be cleaned and the hair of the pet can be sucked by the shutter member, the cleaning efficiency is improved.

In addition, the inclined guide member is formed on the bottom surface of the outer cylinder to guide the air to the air inlet side has the effect of improving the dust collection efficiency in the cyclone dust collecting unit.

In addition, since the outer cylinder is formed of a transparent material, the dust accommodated in the dust accommodating chamber can be visually checked from the outside, so that the user feels satisfaction by checking the cleaning state.

1 is a perspective view of a brush assembly of a vacuum cleaner according to an embodiment of the present invention,
2 is a perspective view of the brush assembly of FIG. 1 viewed from the bottom;
3 is an exploded perspective view illustrating a part of the brush assembly of FIG. 1,
4 is a plan view from which the upper casing of the brush assembly of FIG. 1 is removed;
5 is a perspective view illustrating the shutter member shown in FIG. 1;
6 is a view showing a state of the shutter member when the brush assembly of FIG.
7 is a view illustrating a state of the shutter member when the brush assembly of FIG. 1 is advanced,
8 is a perspective view illustrating a cyclone dust collecting unit in a state in which the opening and closing knob is removed from the brush assembly of FIG. 1,
9 is a cross-sectional view showing a state in which the external air inlet hole is closed by the opening and closing knob in the brush assembly of FIG.
10 is a cross-sectional view illustrating a state in which the external air inlet hole is opened by the opening / closing knob in the brush assembly of FIG. 1.

Hereinafter, a nozzle assembly 10 having a cyclone dust collecting unit according to an embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1, the brush assembly 10 having the cyclone dust collecting unit according to the present embodiment includes a brush unit 100 and a cyclone dust collecting unit 200.

1 to 4, the brush unit 100 is for sucking air from the surface to be cleaned and includes a casing part 110, a neck part 130, a drum brush 150, a turbine fan 160, and a shutter. The member 180 is included.

The casing part 110 includes an upper casing 111 and a lower casing 112. These upper and lower casings 111 and 112 are combined with each other to form an inner space of the casing portion 110. A plurality of ribs 113 are installed on the open bottom surface of the lower casing 112 to form a plurality of bottom suction holes 114. Air including dust on the surface to be cleaned is sucked into the inner space of the casing unit 110 through the bottom suction port 114.

A plurality of front suction openings 115 are formed on the front surface of the upper casing 111. Four front suction openings 115 are formed in the center of the longitudinal direction of the upper casing 111, four are formed at each of the edges. Fine dust floating and spaced apart from the surface to be cleaned is sucked through the plurality of front suction holes 115.

The neck part 130 collects air including dust sucked into the inner space of the casing part 110 and discharges it to the downstream side, and is coupled to the rear of the casing part 110. Referring to FIG. 3, a stepped groove 132 is formed on one surface of the neck portion 130, and a pair of rotation shaft holes 134 is formed on both sides of the groove 132.

The drum brush 150 is installed to be rotatable in the inner space of the casing 110.

Referring to FIG. 4, the drum brush 150 includes a cylindrical drum brush body 151, and a plurality of brush brushes 152 are planted on the outer circumferential surface of the drum brush body 151. One end of the plurality of brush brushes 152 is in contact with the surface to be cleaned through the bottom suction port 114. Accordingly, when the drum brush body 151 is rotated, the surface to be cleaned is applied by the plurality of brush brushes 152, so that the dust stuck to the surface to be cleaned can be easily separated.

The turbine fan 160 is installed in the inner space of the casing unit 110 and is disposed to be spaced a predetermined distance to the downstream side with respect to the drum brush 150 so that it can be rotated by the air sucked into the inner space of the casing unit 110. Is installed. The rotation of the turbine fan 160 is transmitted to the drum brush 150 by the belt member 170 provided between the turbine fan 160 and the drum brush 150.

2 and 5, the shutter member 180 includes a rotating body 181, a substantially rectangular shutter plate 183, and a pair of inclined pieces 185 provided at both ends of the shutter plate 183. ).

The rotation body 181 is coupled to the shaft member 184 hinged to the lower casing 112 is rotated integrally with the shaft member 184.

The shutter plate 183 extends from the outer circumferential surface of the rotating body 181, and is formed to extend from the outer circumferential surface of the rotating body 181 to both sides of the plurality of blocking portions 183a and the blocking portion 183a formed to be spaced apart from each other. Both side ends 183b are provided. A plurality of air inlet grooves 183c are formed between the plurality of blocking units 183a. The blocking unit 183a is configured to have a length slightly smaller than both side ends 183b. Thus, the shutter plate 183 is hinged in the lower casing 112 in conjunction with the rotation of the rotation body 181, the rotation shaft is disposed in parallel with the rotation axis of the drum brush (150).

The inclined pieces 185 are provided at both side end portions 183b of the shutter plate 183, and one end of each inclined piece 185 is fixedly coupled to the rotation body 184. The width of the inclined piece 185 is provided to have the same length as the width of both side ends 183b of the shutter plate 183. The inclined plate 185 is disposed to have a predetermined angle with respect to the shutter plate 183. An auxiliary inclined piece 188 is provided between both side ends 183b of the shutter plate 183 and the inclined piece 185 to guide the rotation of the shutter member 180 smoothly. The auxiliary inclined piece 188 is provided to be in contact with the surface to be cleaned at one end like the inclined piece 185.

As described above, the shutter member 180 includes a rotation body 181, a shutter plate 183, and an inclined plate 185, thereby providing an air inlet formed between the lower casing 112 and the surface to be cleaned of the casing 110. The area can be adjusted.

When the user reverses the casing unit 110, the shutter plate 183 rotates in a clockwise direction, and as shown in FIG. 6, both end portions 183b of the shutter plate 183 come into contact with the surface to be cleaned and the shutter plate 183. It is in an upright position with respect to the surface to be cleaned, and the hair or pet hair on the surface to be cleaned can be scraped and collected. When the shutter plate 183 is in an upright state, the gap between the lower casing 112 and the surface to be cleaned is the narrowest. Therefore, the amount of air introduced into the inner space of the casing unit 110 through the air inlet is reduced while the vacuum pressure applied on the surface to be cleaned through the bottom suction port 114 is increased.

On the other hand, when the user advances the casing unit 110, the shutter plate 183 rotates in the counterclockwise direction, and as shown in FIG. 7, the inclined plate 185 of the shutter member 180 is in contact with the surface to be cleaned and is standing upright. do. The blocking part 183a of the shutter plate 183 is disposed to have a constant inclination with respect to the surface to be cleaned so that the separation distance from the surface to be cleaned is further reduced, and thus the distance between the lower casing 112 and the surface to be cleaned is maximized. Therefore, the amount of air introduced into the inner space of the casing unit 110 through the air inlet increases, the bottom of the inlet suction hole of the hair or pet hair in the form of lumps scraped by the shutter plate 183 when the casing unit 110 is reversed It can be easily sucked into 114.

The cyclone dust collecting unit 200 is installed to be connected to the rear end of the neck part 130, and separates and purifies the dust by introducing air including dust discharged through the neck part 130 from the inner space of the casing part 110. To exhaust the air.

1, 3 and 8, 9, the cyclone dust collecting unit 200 is the outer cylinder 210, the inner cylinder 220, the support shaft 230, the swing guide member 240, the air discharge pipe 250 , The inclined guide member 260, the opening and closing knob 270.

The outer cylinder 210 is formed of a transparent material having an open top in a cylindrical shape, and is connected to the neck portion 130 and the air discharge pipe 250. An air inlet 217 is formed through the bottom of the outer cylinder 210, and an external air inlet hole 215 is formed through the lower outer surface of the outer cylinder 210.

The inner cylinder 220 has a cylindrical shape with an open top, and is installed inside the outer cylinder 210. The inner cylinder 220 is disposed to have the same central axis as the outer cylinder 210 and has a length smaller than the height of the outer cylinder 210. A portion of the bottom surface of the inner cylinder 220 is cut to communicate the inside of the inner cylinder 220 and the air inlet 217 of the outer cylinder 210. A dust accommodating chamber C1 is formed between the inner cylinder 220 and the outer cylinder 210 to accommodate the separated dust.

The support shaft 230 is installed in a rod shape to have a length smaller than the height of the inner cylinder 220 on the central axis of the inner cylinder 220.

The pivot guide member 240 is installed so that the spiral plate is connected between the inner cylinder 220 and the support shaft 230 to elevate the air including the dust introduced into the inner cylinder 220.

The air discharge pipe 250 is formed in a funnel shape to discharge the purified air from which the dust is separated, and is connected to the upper portion of the open outer cylinder 210. The central axis of the air discharge pipe 250 is coincident with the central axis of the outer cylinder 210. The air discharge pipe 250 is composed of an inclined portion 251 of the lower light reciprocating portion connected to the upper portion of the outer cylinder 210, and a cylindrical portion 253 extending from the inclined portion 251. The cylindrical portion 253 is connected to an extension tube (not shown) used in a conventional vacuum cleaner. The central axis of the air discharge pipe 250 is disposed to have the same central axis as the central axis of the extension pipe (not shown). The air discharge pipe 250 has a dust leakage preventing member 255 extending from the end of the cylindrical portion 253 toward the inside of the inclined portion 251.

The central axis of the cyclone dust collector 200 of the present embodiment is the same as the central axis of the extension pipe (not shown), so that the cyclone dust collector 200 does not protrude outward from the extension pipe (not shown), and the brush unit 100 and the extension pipe (not shown). By forming a pipe shape connecting the si), the volume of the brush assembly 10 is compact, and when the user uses the brush assembly 10, it can be used without any inconvenience.

The inclined guide member 260 collects the air discharged through the neck part 130 to guide the air inlet 217 formed at the bottom of the outer cylinder 210, and the outer cylinder 210 is coupled to the neck portion 130. If so, it is arranged to be inserted into the neck portion 130. The inclined guide member 260 is formed to be inclined from the bottom of the outer cylinder 210, the first portion 261 formed to be inclined downward from the center of the bottom of the outer cylinder 210, and the outer cylinder to extend from both sides of the first portion 261 The second portion 263 and 265 may be configured to be inclined downward from the bottom of the 210.

The first portion 261 and the pair of second portions 263 and 265 are formed to face each other with respect to the first portion 261 at a predetermined angle so that the air discharged from the neck portion 130 is inclined guide member 260. Are gathered by second portions 263 and 265.

The first and second portions 261 and 263 and 265 are formed to be inclined with respect to the bottom of the outer cylinder 210 such that the air discharged from the neck portion 130 faces the air traveling direction at a right angle. It is guided smoothly without hitting the air inlet 217.

3 and 9, the opening and closing knob 270 is for selectively opening and closing the external air inlet hole 215 formed in the outer cylinder 210, and rotates to the rotating shaft hole 134 formed in the neck portion 130. It is possible to install.

To this end, the opening and closing knob 270 is provided with an opening and closing portion 272 to seal the external air inlet hole 215, and a pressing portion 274 formed on the rear side of the opening and closing portion 272. Rotating shafts 278 are formed at both sides of the opening / closing knob 270 and are inserted into the rotating shaft holes 134 formed in the neck portion 130 to be rotatably installed. The pressing part 274 is disposed to be seated in the groove 132 formed in the neck part 130, and the opening and closing part 272 protrudes from the rear end of the neck part 130 to cover the external air inflow hole 215. Is placed. A pair of springs 276 is provided between the rotation shaft hole 134 and the rotation shaft 278. Therefore, after pressing the open / close knob 270, when the external force is removed, the open / close knob 270 is returned to its original position by the spring 276.

Hereinafter, the operation of the brush assembly 10 according to the present embodiment will be described with reference to FIGS. 9 and 10.

For reference, FIG. 9 is a cross-sectional view of the brush assembly 10 showing the state in which the external air inlet hole 215 is closed by the open / close knob 270, and FIG. 10 is the external air inlet hole 215 by the open / close knob 270. ) Is a cross-sectional view of the brush assembly 10 showing the open state.

Referring to FIG. 9, in a state in which the opening and closing portion 272 of the opening and closing knob 270 is closing the external air inlet hole 215, air containing dust from the surface to be cleaned is passed through the bottom suction port 114 to the casing portion 110. Into the inner space of the air, the air containing the dust floating in front of the casing unit 110 is separated from the surface to be cleaned through the front suction opening 115 is introduced into the inner space of the casing unit (110).

Air introduced into the inner space of the casing part 110 is discharged through the neck part 130 and guided to the air inlet 217 by the inclined guide member 260 and then introduced into the inner cylinder 220. The air introduced into the inner cylinder 220 is guided by the turning guide member 240 to form a swirling airflow, and the dust contained in the air is centrifuged by the swirling airflow. The centrifuged dust is stored in the dust accommodating chamber (C1), the purified air is discharged through the air discharge pipe 250, after passing through an extension pipe (not shown) connected to the air discharge pipe 250, a flexible hose (not shown) ) Is sucked into the dust collector (not shown) built in the vacuum cleaning base (not shown), and the fine dust is secondarily separated, and then discharged to the outside of the vacuum cleaning base.

As illustrated in FIG. 9, in the state where the opening and closing portion 272 is closing the external air inlet hole 215, the dust separated from the swirling air generated inside the inner cylinder 220 is stored in the dust accommodating chamber C1.

Since the user can see the dust stored in the dust accommodating chamber C1 through the transparent outer cylinder 210, the user can confirm the state of cleaning while observing the separated dust with the naked eye and can feel the satisfaction.

In addition, the brush assembly 10 according to the present embodiment is a front suction port 115 is formed on the front surface of the upper casing 111, the fine dust floating off from the surface to be cleaned, the cyclone dust collecting unit 200 Since fine dust can be separated from, cleaning efficiency is further improved.

In addition, since the shutter member 140 can scrape the hair on the surface to be cleaned or the hair of the pet to separate it from the cyclone dust collecting unit 200, the cleaning efficiency can be further improved.

A certain amount of dust is stored in the dust accommodating chamber C1, and the user opens or closes the knob to discharge the dust stored in the dust accommodating chamber C1 downstream of the cyclone dust collector 200, that is, the vacuum cleaner main body (not shown). When pressing the pressing portion 274 of 270, as shown in Figure 10, the opening and closing knob 270 is rotated, while the opening and closing portion 272 is spaced apart from the external air inlet hole 215, the external air inlet hole 215 is opened. .

When the external air flows into the external air inlet hole 215, the introduced external air flows to the air discharge pipe 250, and the dust stored in the dust accommodating chamber C1 is flowed through the air discharge pipe 250 by this flow. It is discharged to move to the dust collector (not shown) inside the vacuum cleaning base through the extension tube (not shown).

In this way, the user can empty the selectively stored dust by operating the opening and closing knob 270, it is possible to visually check the process of emptying the dust stored in the dust receiving chamber (C1).

100 ... brush unit 110 ... casing part
111 ... upper casing 112 ... lower casing
114.Front intake 115 Front intake
130.Neck section 150.Drum brush
160 ... turbine fan 180 ... shuttle member
181.Rotating body 183 ... Shutter plate
185 Inclination 188 Secondary Inclination
200 ... Cyclone Dust Collector 210
215.Outside air inlet 217 ... Air inlet
220 ... inner cylinder 230 ... support shaft
240 ... Turning guide member 250 ... Air exhaust pipe
260 ... inclined guide member 261 ... first part
262 ... Part 2 270 ... Knob
272 ... opening and closing 274 ... press
C1 ... dust chamber

Claims

A brush unit having a casing portion for sucking dust on the surface to be cleaned;
And a cyclone dust collecting unit having one end connected to the brush unit and the other side connected to the extension tube of the vacuum cleaner to introduce air discharged from the brush unit to separate dust and discharge the purified air to the extension tube.
The central axis of the cyclone dust collecting unit is located in line with the central axis of the extension pipe,
The casing part is a brush assembly of the vacuum cleaner, characterized in that it comprises a plurality of front suction openings for sucking the fine dust floating in the front spaced apart from the surface to be cleaned.

The method of claim 1, wherein the brush unit,
The brush assembly of the vacuum cleaner further comprises a shutter member rotatably installed on the front bottom surface of the casing to scrape hair or pet hair on the surface to be cleaned.

According to claim 1, wherein the cyclone dust collecting unit,
An outer cylinder having an air inlet through which one side of the bottom passes;
An inner cylinder disposed inside the outer cylinder to communicate with the air inlet;
A support shaft installed at the center of the inner cylinder;
A pivoting guide member installed between the inner cylinder and the support shaft to pivot up the air introduced into the inner cylinder; And
Brush assembly of a vacuum cleaner comprising a; air discharge pipe coupled to the top of the outer cylinder.

The method of claim 3, wherein
A dust accommodating chamber is formed between the outer cylinder and the inner cylinder to store dust.
The cyclone dust collecting unit, the brush assembly of the vacuum cleaner further comprises an opening and closing knob for selectively introducing external air to move the dust stored in the dust chamber to the vacuum cleaner body.

The method of claim 4, wherein
The outer cylinder is formed through the external air inlet hole,
The opening and closing knob of the vacuum cleaner, characterized in that the elastically rotatably supported by the brush unit to open and close the external air inlet hole.

The method of claim 3, wherein
And an inclined guide member formed to be inclined downward from the bottom of the outer cylinder to collect air discharged from the brush unit and to guide the air inlet to the air inlet.

The method of claim 6, wherein the inclined guide member
A first portion formed obliquely downward from a lower end of the support shaft; and
Brush assembly of a vacuum cleaner, comprising a pair of second portions extending to both sides of the first portion and facing at a predetermined angle.

The method according to any one of claims 1 to 8,
At least a part of the cyclone dust collecting unit is transparent, the brush assembly of the vacuum cleaner, characterized in that visible from the outside.