KR20160065611A - Nozzle for a cleaner and vacuum cleaner - Google Patents

Abstract

The present invention relates to a cleaner nozzle. According to an embodiment of the present invention, the cleaner nozzle comprises: a suction unit provided with an inlet, and a rotation cleaning unit to clean a bottom by a rotating operation; and a nozzle frame to which the suction unit is connected to be separable, and which is provided with an operating apparatus to operate the rotation cleaning unit. As such, the cleaner nozzle in accordance with the present invention is able to enhance a user convenience.

Description

[0001] The present invention relates to a nozzle for a vacuum cleaner,

The present invention relates to a nozzle of a vacuum cleaner and a vacuum cleaner.

Background Art Generally, a vacuum cleaner sucks dust-containing air using a suction force generated by a suction motor mounted inside a cleaner main body, and then filters the dust in a dust separator.

Such a vacuum cleaner can be distinguished as a cleaner of a canister type in which a suction nozzle for suctioning dust is provided separately from the main body and connected by a connecting device, and an upright type vacuum cleaner in which a suction nozzle is rotatably connected to the main body .

In Korean Patent Laid-Open Publication No. 10-2009-0121813, a nozzle of a vacuum cleaner is disclosed.

The nozzle of the vacuum cleaner includes a main nozzle having a main suction port and an auxiliary nozzle selectively received in the main nozzle and having an auxiliary suction port. The main nozzle is provided with an agitator.

According to such a nozzle of the vacuum cleaner, since the entire suction area is increased in a state in which the auxiliary nozzle is drawn out to the main nozzle, the area which can be cleaned is increased but the floor is cleaned in the area corresponding to the suction port of the auxiliary nozzle There is a problem that can not be done.

Also, in the case of the prior art, there is a problem that various types of nozzles can not be used because the nozzles are connected to the main body.

In addition, in the case of the prior art, since the left and right widths of the nozzles become long, there is an advantage that it is impossible to clean a narrow gap.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vacuum cleaner and a nozzle of a vacuum cleaner capable of a narrow gap cleaner.

It is also an object of the present invention to provide a vacuum cleaner and a nozzle of a vacuum cleaner in which cleaning convenience for the user is improved.

It is also an object of the present invention to provide a vacuum cleaner nozzle capable of cleaning the floor in the entire area of the suction port even if the area of the suction port is variable and the area of the suction port is increased.

According to one aspect of the present invention, there is provided a nozzle of a vacuum cleaner including: a suction unit having a rotary cleaning unit for cleaning a floor surface by a rotating operation; And a nozzle frame detachably connected to the suction unit and including a driving device for driving the rotary cleaning unit.

In addition, when the suction unit is connected to the nozzle frame, the rotary cleaning unit may be connected to the driving device.

The driving unit may include a rotation driving unit and a transmission unit for transmitting the power of the rotation driving unit. The transmission unit may be exposed to the outside in a state where the suction unit is separated from the nozzle frame.

The rotation driving unit may be rotated by air flowing through the nozzle frame.

In addition, the rotation driving unit may include a hollow for air to flow, and a plurality of blades may be provided on an inner circumferential surface of the rotation driving unit.

In addition, the rotation driving unit may include a plurality of gears for engaging with the transmission unit.

The suction unit may further include a connection unit connected to the rotary cleaning unit and connected to the delivery unit in a state where the suction unit is coupled to the nozzle frame.

In addition, the transmission unit may be a gear, and the connection unit may include a plurality of gears for engaging with the transmission unit.

The suction unit may include an air flow path through which the sucked air flows, and the nozzle frame may include a flow hole through which the air passing through the air flow path flows.

Further, the suction portion may have a shape in which the longitudinal length is greater than the lateral width.

The suction unit may include a fixed nozzle connected to the nozzle frame, and a movable nozzle slidably connected to the fixed nozzle in the front-rear direction of the suction unit.

In addition, the rotary cleaning unit may include a plurality of cleaning units to be adjusted in length by movement of the movable nozzle.

The plurality of cleaning units may include a first cleaning unit rotatably supported by the fixed nozzle and a second cleaning unit slidably coupled to the first cleaning unit and rotatably supported by the movable nozzle. .

The nozzle frame may further include a joint part connected to the nozzle frame, and a connection pipe connected to the joint part and communicating with the nozzle frame, wherein the joint part is configured such that the nozzle frame rotates about two or more axes .

The joint part may include a first rotating part rotatably connected to the nozzle frame, and a second rotating part rotatably connected to the first rotating part and rotatably connected to the connection pipe.

The first rotary part may be rotatably connected to the nozzle frame by 360 degrees, and the second rotary part may be rotatably connected to the connection pipe by 360 degrees.

The apparatus may further include a connection hose communicating the nozzle frame and the connection pipe, the connection hose passing through the first rotation part and the second rotation part.

According to another aspect of the present invention, there is provided a nozzle of a vacuum cleaner, comprising: a suction unit having a suction port through which air is sucked; A connection hose connected to the suction unit; A connection pipe connected to the connection hose; And a joint part connecting the suction part and the connection pipe so that the suction part can be bent with respect to the connection pipe, wherein the joint part includes: a first rotation part rotatably connected to the suction part; And a second rotating part rotatably connected to the first rotating part and rotatably connected to the first rotating part.

According to another aspect of the present invention, there is provided a vacuum cleaner comprising: a vacuum cleaner body having a suction motor; A suction nozzle communicating with the cleaner main body and sucking air on a bottom surface thereof; And a connection mechanism for connecting the suction nozzle and the cleaner main body, wherein the suction nozzle comprises: a suction part having a rotation cleaning part for cleaning the bottom surface by a rotation operation; And a nozzle frame connected to the suction unit in a detachable manner and including a driving device for driving the rotary cleaning unit while the rotary cleaning unit is connected.

According to the proposed invention, since the suction portion is detachably coupled to the nozzle frame, various types of suction portions can be connected to the nozzle frame.

Further, since the longitudinal length of the body of the suction nozzle is larger than the lateral width, the user can move the suction nozzle forward and rearward as well as moving the suction nozzle leftward and rightward. Therefore, since the suction nozzle can be moved according to the user, the cleaning convenience of the user can be improved. That is, the user can clean the bottom surface by moving the suction nozzle to the left and right, such as writing the floor using the broom.

Further, since the front and rear lengths of the body are larger than the left and right widths, there is an advantage that the suction nozzle can be inserted and cleaned with a narrow gap.

In addition, when the length of the suction portion is increased, not only the total area of the suction port is increased but also the length of the rotary cleaning portion corresponding to the increased suction port is increased, so that the area to be cleaned is increased and at the same time, .

1 is a perspective view of a vacuum cleaner according to a first embodiment;
2 and 3 are exploded perspective views of the suction nozzle according to the first embodiment.
4 is a perspective view of a support portion in which a rotation drive portion and a rotation drive portion are installed;
5 is a perspective view of the suction unit according to the first embodiment;
6 is a cross-sectional view showing the internal structure of the suction nozzle according to the first embodiment.
7 is a perspective view of the suction nozzle according to the second embodiment;
FIG. 8 is a view showing a bottom structure of the suction nozzle of FIG. 7; FIG.
9 is a perspective view showing a rotary cleaning unit according to the second embodiment;
10 is a view showing a state in which the second cleaning unit according to the second embodiment is supported by the movable nozzle.
11 is a view showing a state where the movable nozzle is coupled to the fixed nozzle according to the second embodiment.
12 is a cross-sectional view taken along line B-B 'in Fig.
13 is a perspective view of the suction nozzle according to the third embodiment.
FIG. 14 is a view showing a suction nozzle according to a third embodiment bent in a horizontal direction; FIG.
15 is a view showing a joint according to the third embodiment;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

In the present specification, the term "floor surface" means not only a living room or a floor surface of a room, but also a cleaning surface such as a carpet.

FIG. 1 is a perspective view of a vacuum cleaner according to a first embodiment, and FIGS. 2 and 3 are exploded perspective views of a suction nozzle according to a first embodiment.

1 to 3, a vacuum cleaner 1 according to an embodiment of the present invention includes a vacuum cleaner body 10 having a suction motor (not shown) for generating a suction force, And a suction device 20 for sucking air and foreign substances on the bottom surface.

The cleaner main body 10 may include at least one wheel and a dust container 110 in which dust separated from the air is stored.

The suction device 20 may include a suction nozzle 30 capable of moving along the bottom surface and a connection mechanism for connecting the suction nozzle 30 to the cleaner main body 10.

The connection mechanism includes an extension pipe 24 connected to the suction nozzle 30, a handle 22 connected to the extension pipe 24, a connection 22 connecting the handle 22 to the cleaner main body 10, And may include a hose 23.

The suction nozzle 30 may include a nozzle frame 310 and a suction unit 340 detachably connected to the nozzle frame 310.

The suction nozzle 30 may further include a connection pipe 380 connected to a rear portion of the nozzle frame 310. The extension pipe (24) may be connected to the connection pipe (380). The connection pipe 380 may be rotatably connected to the nozzle frame 310.

The suction unit 340 may include a body 341 forming an external shape. The body 341 may be formed in a rectangular parallelepiped shape. Alternatively, the body 241 may be formed in a cylindrical shape having a substantially semicircular cross section.

The front and rear lengths of the body 341 may be larger than the left and right widths. The shape of the body 341 is not limited as long as the longitudinal length of the body 341 is larger than the width of the body 341.

According to the present embodiment, since the front and rear lengths of the body 341 are larger than the left and right widths, the user can move the suction nozzle 30 back and forth, have. Therefore, since the suction nozzle 30 can be moved according to the user, the user's convenience of cleaning can be improved. That is, the user can clean the bottom surface by moving the suction nozzle to the left and right, such as writing the floor using the broom.

Further, since the front and rear lengths of the body 341 are larger than the left and right widths, there is an advantage that the suction nozzle can be inserted and cleaned with a narrow gap.

The body 341 may include a suction port 343 for sucking air. The suction port 343 may be formed on the bottom surface of the body 341. The suction port 343 may have a longitudinal length greater than a lateral width.

The nozzle frame 310 may include a frame body 311.

The first coupling portion 312 is provided on one of the nozzle frame 310 and the suction portion 340 and the second coupling portion 342 coupled to the first coupling portion 312 is provided on the other . For example, the first coupling portion 312 may be a hook, and the second coupling portion 342 may be a hole or a groove to which the hook is coupled.

The suction unit 340 may further include a rotation cleaning unit 350 for cleaning the bottom surface. The rotary cleaning unit 350 is disposed at a position corresponding to the suction port 343 and may be rotatably installed in the body 341. [

The rotary cleaning unit 350 may include a brush bristles 351. The brush bristles 351 may blow up the dust on the bottom surface toward the suction port 343 during the rotation of the rotary cleaning unit 350.

The frame body 311 may include a flow hole 314 through which the air sucked through the suction port 343 flows. The frame body 311 may be formed with a flow path through which the air and dust flowing through the flow holes 314 flow. The flow path communicates with the connection pipe (380).

The nozzle frame 310 may further include a driving unit 320 for driving the rotary cleaning unit 350.

When the suction unit 340 is connected to the nozzle frame 310, the power of the driving unit 320 may be transmitted to the rotary cleaning unit 350.

The driving unit 320 may include a rotation driving unit 321 and a transmission unit 330 connected to the rotation driving unit 321.

The driving device 320 will be described later with reference to the drawings.

FIG. 5 is a perspective view of the suction unit according to the first embodiment, and FIG. 6 is a cross-sectional view illustrating the internal structure of the suction nozzle according to the first embodiment.

3 to 6, the rotation driving unit 321 may be rotatably installed on the supporting unit 332. [ The support portion 332 may be fixed to the frame body 311.

The supporting portion 332 may have a hole 333 through which the rotation driving portion 321 passes. The rotation driving part 321 may be positioned in the hole 333.

The rotation driving part 321 may be formed in a cylindrical shape including a hollow 322. The air passing through the flow hole 314 of the frame body 311 can pass through the hollow 322 of the rotation driving part 321.

The inner circumferential surface of the rotation driving part 321 may include a plurality of blades 323 arranged in a direction of air flow and a slanting direction. The plurality of blades 323 may be disposed circumferentially spaced from the inner circumferential surface.

The rotation driving part 321 can be rotated by the plurality of blades 323 in the course of air passing through the hollow 322 of the rotation driving part 321. [

The outer diameter of the rotation driving part 321 may be smaller than the inner diameter of the support part 332. One or more bearings 336 may be disposed between the outer circumferential surface of the rotation drive portion 321 and the inner circumferential surface of the support portion 332.

A receiving groove 325 may be formed on the outer circumferential surface of the rotation driving portion 321 to receive the bearing 336. The receiving groove 325 may be formed in the circumferential direction of the rotation driving part 321.

A receiving groove 334 for receiving the bearing 336 may be formed on the inner circumferential surface of the support portion 332. The receiving groove 334 may be formed in the circumferential direction on the inner circumferential surface of the support portion 332.

Therefore, the rotation driving part 321 can be smoothly rotated by the bearing 336 while being supported by the support part 332 in the course of air flow.

A plurality of gears 324 may be formed on the outer circumferential surface of the rotation driving portion 321 in the circumferential direction.

The transmission portion 330 can be engaged with the gear 324 of the rotation driving portion 321. The transmission unit 330 may be a bevel gear, for example. The transfer unit 330 may be rotatably installed in the frame body 311.

When the suction unit 340 is detached from the nozzle frame 310, the delivery unit 330 may be exposed to the outside.

The suction unit 340 may further include a connection unit 354 to which the rotation cleaning unit 350 is connected and a support unit 353 to support the connection unit 354. [

The support portion 353 may be fixed to the body 341 while being accommodated in the body 341.

The connection portion 354 may be formed in a cylindrical shape and may include a plurality of gear teeth 355 which can be engaged with the transmission portion 355.

The support portion 353 may include a hole 353a through which the connection portion 354 passes. A bearing 356 may be provided between the inner circumferential surface of the support portion 353 and the outer circumferential surface of the connection portion 354. [

A receiving groove 353b for receiving the bearing 356 may be formed on the inner circumferential surface of the support portion 353. [ A receiving groove 357 for receiving the bearing 356 may be formed on the outer circumferential surface of the connecting portion 354.

An air flow path 346 may be formed between the support portion 353 and the bottom surface of the body 341 while the support portion 353 is received in the body 341. [

Hereinafter, the operation of the suction nozzle will be described.

When the suction motor provided in the cleaner main body 10 operates, air including dust can be sucked into the suction unit 340 through the suction port 343 by the suction force generated by the suction motor.

The air introduced into the suction unit 340 through the suction port 343 flows through the air flow path 346 and then through the flow hole 314 of the nozzle frame 310.

The air that has passed through the flow hole 314 of the nozzle frame 310 flows into the connection pipe 380 after passing through the hollow 322 of the rotation driving part 321.

The rotation driving unit 321 rotates while the air passes through the hollow 322 of the rotation driving unit 321. When the rotation driving unit 321 is rotated, the rotational force of the rotation driving unit 321 is transmitted to the rotation cleaning unit 350 by the transmission unit 330 and the connection unit 354. [

Therefore, the rotary cleaning unit 350 may be rotated, and the rotary cleaning unit 350 may clean the floor during the rotation of the rotary cleaning unit 350.

According to the present embodiment, the shape of the suction unit 340 may vary. Since the suction unit 340 is detachably coupled to the nozzle frame 310, various types of suction units 340 may be connected to the nozzle frame 310.

For example, after the first type suction part is separated from the nozzle frame, the suction part of the second type may be connected to the nozzle frame. Therefore, the suction unit can be replaced according to the cleaning area.

FIG. 7 is a perspective view of the suction nozzle according to the second embodiment, and FIG. 8 is a view showing a bottom structure of the suction nozzle of FIG.

The present embodiment is the same as the first embodiment in other portions, but is characterized in that the length of the suction portion can be adjusted.

That is, in the present embodiment, the structure of the nozzle frame, the connection structure between the nozzle frame and the suction portion, and the rotation force of the driving device provided in the nozzle frame are transmitted to the rotation cleaning portion provided in the suction portion, Is omitted.

7 and 8, the suction nozzle 40 according to the present embodiment may include a nozzle frame 410 and a suction unit 420 detachably connected to the nozzle frame 410 .

The suction unit 420 may include a fixed nozzle 430 and a movable nozzle 440 movably connected to the fixed nozzle 430. The movable nozzle 440 may be slidably connected to the fixed nozzle 430.

Therefore, the length of the suction portion 420 can be varied by moving the movable nozzle 440 relative to the fixed nozzle 430.

The fixed nozzle 430 may include a first suction port 431 and the movable nozzle 440 may include a second suction port 441. The entire area of the suction port can be varied by the movement of the movable nozzle 440.

The suction unit 420 may further include a rotation cleaning unit 450 for cleaning the floor surface by a rotating operation.

The length of the rotary cleaning unit 450 can also be varied by the movement of the movable nozzle 440.

Hereinafter, the structure of the rotary cleaning unit 450 will be described.

FIG. 9 is a perspective view showing the rotary cleaning unit according to the second embodiment.

9, the rotary cleaning unit 450 according to the present embodiment may include a first cleaning unit 451 and a second cleaning unit 461 that is connected to the first cleaning unit 451 so as to be movable .

The first cleaning unit 451 may be rotatably installed in the fixing nozzle 430. The second cleaning unit 461 may be slidably coupled to the first cleaning unit 451 in the longitudinal direction of the first cleaning unit 451. In addition, the second cleaning unit 461 may be rotatably supported by the movable nozzle 440.

The first cleaning unit 451 may include a brush member 452. The brush member 452 may be slidably connected to the first cleaning unit 451 in the longitudinal direction of the first cleaning unit 451

The first cleaning unit 451 may include a first connection unit 453 connected to the second cleaning unit 461. The second cleaning unit 461 may include a second connection unit 462 connected to the first connection unit 453.

Either one of the first connection portion 453 and the second connection portion 462 may be a protrusion and the other may be a receiving recess into which the protrusion is inserted.

In FIG. 9, for example, the first connection portion 453 is a receiving groove, and the second connection portion 462 is a protrusion.

The second connection portion 462 may be connected to the first connection portion 453 in a sliding manner at a side of the first cleaning portion 451.

The second cleaning unit 461 may be slid in the longitudinal direction of the first cleaning unit 451 while the second connection unit 462 is connected to the first connection unit 453. [ That is, the first connection part 453 and the second connection part 462 serve as guide rails for sliding movement of the second cleaning part 461.

At this time, for smooth sliding of the second cleaning unit 461, the contact surfaces of the first connection unit 453 and the second connection unit 462 may be rounded.

The second cleaning unit 461 may further include a brush supporter 463 to which a brush member 464 is connected.

The second connection portion 462 may be provided with a shaft 465. The shaft 465 provides a rotation center of the rotary cleaning unit 450.

10 is a view showing a state in which the second cleaning unit according to the second embodiment is supported by the movable nozzle.

Referring to FIG. 10, the movable nozzle 440 may include a bearing 444 to which the shaft 465 of the second cleaning unit 461 is connected.

The movable nozzle 440 is provided with a bearing mounting portion 442 on which the bearing 444 is mounted. The bearing 444 is prevented from moving in the longitudinal direction and the radial direction of the rotary cleaning part 450 with respect to the bearing installation part 442 in a state where the bearing 444 is installed on the bearing installation part 442. The bearing 444 can move together with the movable nozzle 440 by the movement of the movable nozzle 440.

As the bearing 444 moves with the movable nozzle 440, the second cleaning part 461 having the shaft 465 connected to the bearing 440 can move together.

That is, according to the present invention, the second cleaning unit 461 is rotatably supported by the movable nozzle 440 and can move together with the movable nozzle 440.

When the movable nozzle 440 moves in the direction of increasing the length of the fixed nozzle 430, the second cleaning unit 461 may be drawn out from the fixed nozzle 430.

The second cleaning unit 461 is connected to the movable nozzle 440 while the movable nozzle 440 is slid with respect to the fixed nozzle 430. In this state, 451 to clean the bottom surface facing the second suction port. That is, the first cleaning unit 451 can clean the bottom surface facing the first suction port, and the second cleaning unit 461 can clean the bottom surface facing the second suction port.

11 is a view showing a state where the movable nozzle is coupled to the fixed nozzle according to the second embodiment, and FIG. 12 is a sectional view cut along the line B-B 'of FIG.

9 to 12, the suction nozzle 40 according to the present embodiment is configured such that when the movable nozzle 440 moves in the direction of increasing the length with respect to the fixed nozzle 430, 440) to limit the movement of the first and second actuators (440, 440).

The restriction mechanisms 432 and 446 are provided on the other one of the guide grooves 446 provided on the inner surface of the body of the movable nozzle 440 and the outer surface of the body of the fixed nozzle 430, And guide protrusions 432 accommodated in the guide grooves 446.

For example, in FIG. 12, the guide groove 446 is provided in the movable nozzle 440, and the guide protrusion 432 is provided in the fixed nozzle 430.

The guide groove 446 may be long in the front-rear direction of the suction nozzle 40. Therefore, the guide protrusion 432 can be moved in the guide groove 446 while the guide protrusion 432 is received in the guide groove 446.

The guide protrusion 432 is positioned at the left end of the guide groove 446 in a state where the length of the suction unit 420 is maximized. The guide protrusion 432 may be positioned at the right end of the guide groove 446 in a state where the length of the suction unit 420 is minimized.

9, the second cleaning unit 461 maintains a state connected to the first cleaning unit 451 while the length of the suction unit 420 is maximized.

Therefore, according to the present embodiment, the restriction mechanism 432, 446 can prevent the movable nozzle 440 from being separated from the fixed nozzle 430.

In the above embodiment, the restriction mechanisms 432 and 446 are provided in the bodies of the fixed nozzle and the movable nozzle, respectively. Alternatively, the restriction mechanisms 432 and 446 may be provided in the first and second cleaning units. That is, one of the first cleaning unit and the second cleaning unit may have a guide groove, and the other may include a guide protrusion received in the guide groove.

Therefore, when the length of the suction unit is increased, not only the total area of the suction port is increased but also the length of the rotary cleaning unit corresponding to the increased suction port is increased, The cleaning area can be effectively cleaned.

In the above embodiment, the movable nozzle is manually slid with respect to the fixed nozzle, but it is also possible that the movable nozzle is automatically slid by the driving device. For example, the fixed nozzle is provided with a driving device, and when the driving device is driven, the movable nozzle can be slid with respect to the fixed nozzle. The driving device may include a motor, for example. In order for the motive power of the motor to be transmitted to the movable nozzle, the driving device may include one or more gears. For example, a pinion gear may be connected to the motor, and a rack gear may be provided in the body of the movable nozzle.

In this case, the handle may be provided with an input unit for inputting a command for driving the driving device.

As another example, the movable nozzle may be connected to an elastic member. The elastic member may be fixed to the fixed nozzle and the movable nozzle, and may provide an elastic force to the movable nozzle to move the movable nozzle in a direction in which the length of the suction portion is increased.

In this case, the suction nozzle may include a fixing mechanism for fixing the position of the movable nozzle in a state where the length of the suction part is minimized. For example, the fixed nozzle may be provided with a hook, and the movable nozzle may be provided with a hook coupling portion to which a hook is coupled. The hook may be coupled to the hook engagement portion in a state where the length of the suction portion is minimized.

In this case, when the coupling between the hook and the hook coupling portion is released, the movable nozzle is slid by the elastic force of the elastic member to increase the length of the suction portion.

FIG. 13 is a perspective view of the suction nozzle according to the third embodiment, FIG. 14 is a view showing a suction nozzle according to the third embodiment bent in a horizontal direction, FIG. 15 is a view showing a joint according to the third embodiment to be.

In this embodiment, the other parts are the same as those of the second embodiment, except that the joint part is connected to the suction part so that the suction part can be bent in the horizontal direction with respect to the connection pipe. Therefore, only the characteristic parts of the present embodiment will be described below.

13 to 15, the suction nozzle 50 according to the present embodiment includes a suction unit, a joint unit 540 connected to the suction unit, a connection pipe 530 connected to the joint unit 540, . ≪ / RTI >

The suction unit may include a first nozzle 510 and a second nozzle 520 slidably connected to the first nozzle 510.

The suction nozzle 50 may further include the rotation cleaning unit described in the second embodiment. However, unlike the second embodiment, the driving device 320 of the first embodiment may be provided inside the first nozzle 510. [

The joint part 540 may include a first rotation part 541 rotatably connected to the first nozzle 510 and a second rotation part 543 rotatably connected to the connection pipe 530 have.

Each of the rotation parts 541 and 543 may be formed into a hollow cylindrical shape, for example. The first rotation part 541 may be rotated 360 degrees about a rotation center extending in a direction parallel to an air flow direction flowing in the first nozzle 510.

A groove 541a may be formed in the outer circumferential surface of the first rotation part 541 in the circumferential direction and a protrusion 511 may be formed in the first nozzle 510 to be received in the groove 541a.

The second rotation part 543 may be rotated 360 degrees about a rotation center extending in a direction parallel to the air flowing direction in the connection pipe 530.

Grooves 545 may be formed on the inner circumferential surface of the second rotation part 543 in the circumferential direction. The connection pipe 531 may be provided with a protrusion 531 accommodated in the groove 545.

The second rotation part 543 may be rotatably connected to the first rotation part 541. The first rotation unit 541 may include a first connection unit 542 and the second rotation unit 543 may include a second connection unit 544 connected to the first connection unit 542. The second rotation part 543 may be rotated with respect to the first rotation part 541 while the second connection part 544 is connected to the first connection part 542. [

At this time, the second rotation part 543 may be rotated with respect to the first rotation part 541 on the basis of a rotation center extending in a direction intersecting the air flow direction in the first nozzle.

The suction nozzle 50 may further include a connection hose 550 having a flow path for communicating the first nozzle 510 and the connection pipe 530. One end of the connection hose 550 may be fixed to the first nozzle 510 and the other end may be fixed to the connection pipe 530. The connection hose 550 may be a flexible hose, . The connection hose 550 may pass through the first rotation part 541 and the second rotation part 543.

Therefore, according to the present embodiment, since the joint portion 540 allows the suction portion to be bent at various angles with respect to the connection pipe about two or more axes, the convenience of cleaning is improved.

In the above embodiment, the driving unit is provided in the suction unit. Alternatively, the suction nozzle 50 may include the nozzle frame of the first embodiment, and the suction unit may be connected to the nozzle frame. In this case, the joint part 540 may be connected to the nozzle frame and the connection pipe.

That is, in the structure of the first embodiment, it is also possible that the connection pipe is connected to the nozzle frame by a joint part. In this case, the first rotary part may be connected to the nozzle frame, and the second rotary part may be connected to the connection pipe.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: cleaner main body 30: suction nozzle
310: nozzle frame 320: driving device
321: rotation driving part 330:
340: suction unit 350:

Claims (19)

A suction unit having a rotary cleaning unit for cleaning the bottom surface by a rotating operation; And
Wherein the suction portion is removably connected to the nozzle frame and includes a driving device for driving the rotary cleaning portion. The method according to claim 1,
And wherein the rotary cleaning unit is connected to the driving unit when the suction unit is connected to the nozzle frame. 3. The method of claim 2,
The driving device includes a rotation driving unit and a transmission unit for transmitting power of the rotation driving unit,
Wherein the delivery portion is exposed to the outside while the suction portion is separated from the nozzle frame. The method of claim 3,
Wherein the rotation driving portion is rotated by air flowing through the nozzle frame. 5. The method of claim 4,
Wherein the rotation driving part includes a hollow for air to flow and a plurality of blades are provided on an inner circumferential surface of the rotation driving part. The method of claim 3,
And the rotation driving unit is provided with a plurality of gears for engaging with the transmission unit. The method of claim 3,
Wherein the suction portion further includes a connection portion connected to the rotary cleaning portion and connected to the transmission portion in a state where the suction portion is coupled to the nozzle frame. 8. The method of claim 7,
The transmitting portion is a gear,
Wherein the connecting portion is provided with a plurality of gears for engaging with the transmitting portion. The method according to claim 1,
Wherein the suction unit includes an air flow path through which the sucked air flows,
Wherein the nozzle frame includes a flow hole through which air passing through the air flow path flows. The method according to claim 1,
Wherein the suction portion has a shape in which the longitudinal length is greater than the left and right width. The method according to claim 1,
Wherein the suction unit includes a fixed nozzle connected to the nozzle frame, and a movable nozzle slidably connected to the fixed nozzle in the front-rear direction of the suction unit. 12. The method of claim 11,
Wherein the rotary cleaning unit includes a plurality of cleaning units to be adjusted in length by movement of the movable nozzle. 13. The method of claim 12,
The plurality of cleaning units may include:
A first cleaning unit rotatably supported by the fixed nozzle,
And a second cleaning unit slidably connected to the first cleaning unit and rotatably supported by the movable nozzle. The method according to claim 1,
A joint part connected to the nozzle frame,
And a connection pipe connected to the joint portion and communicating with the nozzle frame,
Wherein the joint portion allows the nozzle frame to be rotatable about two or more axes with respect to the connecting tube. 15. The method of claim 14,
The joint part includes a first rotating part rotatably connected to the nozzle frame,
And a second rotating part rotatably connected to the first rotating part and rotatably connected to the connecting pipe. 16. The method of claim 15,
Wherein the first rotating portion is rotatably connected to the nozzle frame by 360 degrees,
And the second rotary part is rotatably connected to the connection tube by 360 degrees. 16. The method of claim 15,
And a connection hose communicating the nozzle frame and the connection pipe, the connection hose passing through the first rotation part and the second rotation part. A suction unit having a suction port through which air is sucked;
A connection hose connected to the suction unit;
A connection pipe connected to the connection hose;
And a joint part for connecting the suction part and the connection pipe so that the suction part can be bent with respect to the connection pipe,
The joint part includes a first rotating part rotatably connected to the suction part,
And a second rotation part rotatably connected to the connection pipe and rotatably connected to the first rotation part. A vacuum cleaner main body having a suction motor;
A suction nozzle communicating with the cleaner main body and sucking air on a bottom surface thereof; And
And a connection mechanism for connecting the suction nozzle and the cleaner main body,
Wherein the suction nozzle includes: a suction unit including a rotary cleaning unit for cleaning the bottom surface by a rotating operation; And
And a driving device removably connected to the suction part and capable of driving the rotary cleaning part while the rotary cleaning part is connected.

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