WO2022075580A1

WO2022075580A1 - Vacuum cleaner

Info

Publication number: WO2022075580A1
Application number: PCT/KR2021/011069
Authority: WO
Inventors: 이국행; 고무현; 양재성
Original assignee: 엘지전자 주식회사
Priority date: 2020-10-06
Filing date: 2021-08-20
Publication date: 2022-04-14
Also published as: EP4226828A1; US20230404337A1; KR20220045857A; CN216602698U

Abstract

A vacuum cleaner is disclosed. The vacuum cleaner comprises a cleaner body, a suction nozzle, a connection pipe, a first tool assembly, a second tool assembly, and a pipe assembly. The first tool assembly is detachably fixed to a body suction port of the cleaner body and has a first suction port which communicates with the body suction port. The second tool assembly is detachably fixed to the first tool assembly and has a second suction port which communicates with the body suction port. The pipe assembly is fixed to the rear of the connection pipe and detachably fixed to the second tool assembly. The first tool assembly, the second tool assembly, or the pipe assembly can be selectively detached from the cleaner body, and each tool (suction port) can be effectively used.

Description

Vacuum cleaner

The present invention relates to a vacuum cleaner, and to a vacuum cleaner having a plurality of different suction ports.

A vacuum cleaner is a device configured to suck dust and the like into the vacuum cleaner by the pressure difference of air.

The vacuum cleaner may include a cleaning main body and a suction nozzle. A motor is provided inside the cleaning main body, and the motor rotates to generate suction force. The suction force generated inside the cleaning main body is transmitted to the suction nozzle, and external dust may be sucked into the vacuum cleaner through the suction nozzle.

The vacuum cleaner may be classified into a canister type, an upright type, a handy/stick type, and the like, depending on the shape thereof.

In the canister type vacuum cleaner, a cleaning body having wheels is provided separately from the suction nozzle, and the cleaning body and the suction nozzle are connected through a hose.

The upright type cleaner is made by combining a cleaning main body and a suction nozzle together on a pusher.

The handy/stick type cleaner is provided with a handle on the cleaning main body, so that the user can hold and use the cleaning main body part. In the handy type vacuum cleaner, the main body and the suction nozzle are located relatively close, and in the stick type vacuum cleaner, the main body and the suction nozzle are located relatively far away.

Also, there is a robot cleaner in the vacuum cleaner, and the robot cleaner sucks dust and the like while moving by itself using various sensors.

The vacuum cleaner may include a plurality of suction nozzles. At this time, each suction nozzle may be formed in a different shape. For example, one of the suction nozzles is made to have a long suction port on the left and right to be suitable for normal floor cleaning, and the other suction nozzle is configured to have a narrow suction port to be suitable for cleaning a narrow gap, and The other suction nozzle may be formed in a form in which a brush is combined to shake off dust.

In relation to such a vacuum cleaner, Korean Patent Registration No. 1841455 (hereinafter, 'Prior Document 1') discloses a vacuum cleaner, and describes that a plurality of different nozzles can be replaced and used. In addition, Prior Document 1 discloses a cradle that can mount and store unused suction nozzles, thereby solving the inconvenience of storing unused suction nozzles and preventing loss.

Japanese Patent Registration No. 3545628 (hereinafter, 'Prior Document 2') in relation to a vacuum cleaner discloses an electric vacuum cleaner, and discloses an auxiliary suction body composed of an inner pipe, a nozzle body, a brush body, and a pipe cover.

As such, in the prior art, a plurality of different suction nozzles (suction ports) are provided for convenient use of the vacuum cleaner, but improvements are still required to improve the usability and usability of the suction nozzles.

In the case of Prior Document 1, a plurality of suction nozzles are individually provided, and in order to use each suction nozzle, individual separation and coupling must be performed in the cleaner body.

In the case of Prior Document 2, when the extension tube is separated from the auxiliary suction body, the nozzle body or the brush body can be used. However, the nozzle body cannot be used immediately, and the nozzle body must be moved forward in order to use the nozzle body. do. That is, the nozzle body cannot be used immediately when the user holds the handle with one hand and the extension tube with the other hand to separate it, and the user must move the nozzle body forward with the hand holding the extension tube.

Further, in the case of Prior Document 2, when the nozzle body is moved to the front of the brush body for use of the nozzle body, the brush body is coupled to the periphery of the nozzle body, and thus the brush body may interfere with the use of the nozzle body. In the case of a nozzle body, it is generally used for cleaning a relatively narrow gap, etc., but the brush body of Prior Document 2 may prevent the nozzle body from entering into a relatively narrow gap.

In a vacuum cleaner in which a suction nozzle having a basic suction port and a cleaning main body are connected through a connection pipe, when the connection pipe is separated from the cleaning main body, different suction ports have a structure and means that can be selectively and immediately used Describe a vacuum cleaner.

The present disclosure describes a vacuum cleaner having a structure and means in which the use of means constituting a crevice tool (or crevice nozzle) can be effectively made when the connecting pipe is separated from the cleaning main body.

The present disclosure describes a vacuum cleaner having a structure and means capable of preventing reduction of a passage through which dust moves when a connection pipe is coupled to a cleaning main body and a plurality of suction ports are accommodated in a tube extending from the connection pipe do.

The present disclosure provides a structure and means for effectively using a brush and a suction port in a state in which the connecting pipe is separated from the cleaning body, and effectively removing the brush alignment and dust, hair, etc. attached to the brush when the brush is not used Describe a vacuum cleaner with

The present disclosure describes a vacuum cleaner having a structure and means capable of completely blocking the exposure of the brush while the connecting pipe is coupled to the cleaning main body and the brush is not exposed when the connecting pipe is coupled to the cleaning main body.

According to one aspect of the subject matter described in the present application, the vacuum cleaner includes a cleaning main body, a connecting pipe connected to the cleaner main body, and a suction nozzle coupled to the connecting pipe.

The connection pipe extends along a first direction, which is a direction from the main body suction port toward the suction nozzle.

A first motor rotating to generate a suction force is provided inside the cleaning main body, and a main body suction port is provided in front of the cleaning main body in a first direction. The suction force generated inside the cleaning main body may be transmitted to the main body suction port, and may be sequentially transmitted to the connecting pipe and the suction nozzle.

The main body suction port may form an inlet of the cleaning main body through which external dust, air, etc. flows into the cleaning main body. The main body suction port may be formed in the form of a pipe along the first direction.

A first locking groove may be formed on an outer surface of the main body inlet.

The suction nozzle is provided with a basic suction port through which external air or dust is introduced. The suction force inside the cleaning body is transmitted to the basic suction port through the connection pipe. That is, the connecting pipe is located between the cleaning main body and the suction nozzle.

In some implementations, the connecting pipe is provided with a first connecting portion forming an inlet and a second connecting portion forming an outlet.

The cleaning main body is connected to the second connection part.

The suction nozzle is coupled to the first connection part. The suction nozzle may be detachably coupled to the first connection part.

According to one aspect of the subject matter described in the present application, the vacuum cleaner includes a first tool assembly, a second tool assembly, and a pipe assembly.

The first tool assembly may be provided with a first suction port communicating with the main body suction port, and may be detachably fixed to the main body suction port.

The first suction port may form an inlet of the first tool assembly through which external dust, air, etc. flows into the inside of the first tool assembly. The first suction port may be formed in a pipe shape along the first direction.

The second tool assembly includes a second suction port communicating with the main body suction port. The second tool assembly may be removably fixed to the first tool assembly.

The second suction port may form an inlet of the second tool assembly through which external dust, air, etc. flows into the inside of the second tool assembly. The second suction port may have a pipe shape along the first direction.

The pipe assembly may be fixed to the rear of the connecting pipe in the first direction. The pipe assembly may be removably fixed to the second tool assembly.

According to one aspect of the subject matter described in the present application, the first tool assembly may include a first body, a first lever, a first rotation body, and a second rotation body.

The first tool assembly may include a first elastic body.

The first body may be formed in a pipe shape along the first direction and may be coaxially coupled to the main body inlet.

The main body suction port may be fitted into the rear interior of the first body in the first direction.

A second locking groove may be formed in the first body. The second locking groove is formed on the outer surface of the first body.

The second locking groove may be formed on an outer surface of the first body from a front side in the first direction than the first lever.

The first lever may be pivotably coupled to the first body. The first lever may be configured to be caught or released from the main body suction port.

The first lever may be pivotably coupled to the first body based on a first lever shaft in a second direction perpendicular to the first direction. The first lever may include a first locking protrusion. The first locking protrusion is configured to protrude to the inside of the first body and be inserted into the first locking groove to be caught.

The first elastic body elastically supports the first lever so that the first locking protrusion protrudes into the first body.

The first rotating body and the second rotating body may be made symmetrical to each other.

The first rotating body may be pivotably coupled to the first body about a first rotating shaft at a front portion of the first body in the first direction. The first rotating body may include a first semi-pipe forming a part of the first suction port.

The first rotation axis may be parallel to the third direction. The third direction is a direction orthogonal to the first direction and the second direction.

The second rotation body may be pivotably coupled to a front portion of the first body in the first direction about a second rotation axis parallel to the first rotation axis. The second rotating body may include a second half tube forming a part of the first suction port.

The rotation direction of the first rotation body and the rotation direction of the second rotation body may be made in opposite directions to each other.

The first tool assembly may include a first rotation spring and a second rotation spring.

The first rotating spring elastically supports the first rotating body so that the first half tube forms the first suction port.

The second rotating spring elastically supports the second rotating body so that the second half tube forms the first suction port.

In some implementations, the first rotating body includes a first pressing part, and the second rotating body includes a second pressing part.

The first pressing part is made to extend to the other side from the first semi-tube with respect to the first rotational axis to protrude to the outside of the first body.

The second pressing part is configured to extend to the other side from the second semi-tube with respect to the second rotation axis to protrude to the outside of the first body.

The second tool assembly includes a second body.

The second body has a pipe shape along the first direction. A front edge of the second body in the first direction may form the second suction port.

The second body may be coaxially coupled to the first body to accommodate the first and second rotation bodies.

When the second body is coupled to the first tool assembly, the second body may be configured to press the first pressing part and the second pressing part so that the first half tube and the second half tube are opened from each other.

The first body may be fitted inside the rear of the second body in the first direction.

A first fixing groove and a second fixing groove may be formed in the second body. The first fixing groove and the second fixing groove are spaced apart from each other in the first direction on the outer surface of the second body.

In some implementations, the second tool assembly may include a second lever and a brush.

The second tool assembly may include a cover lever.

The second lever is pivotally coupled to the second body.

The second lever is configured to engage or release the first tool assembly. The second lever may be engaged with or released from the first body.

The second lever may be pivotably coupled to the second body with respect to a second lever shaft in the second direction. The second lever may include a second locking protrusion. The second locking protrusion is configured to protrude to the inside of the second body and be inserted into the second locking groove to be caught.

The second tool assembly may include a second elastic body. The second elastic body elastically supports the second lever so that the second locking protrusion protrudes inside the second body.

The brush may be coupled along a front edge of the second body to protrude forward in the first direction than the second body.

In some implementations the second tool assembly comprises a brush cover.

The brush cover is formed in a pipe shape along the first direction. The brush cover is movably coupled to the second body in the first direction or in a direction opposite to the first direction.

The brush cover may form the second suction port together with the second body.

The brush cover is configured to expose or shield the brush.

The brush cover may include a plurality of brush accommodating spaces partitioned from each other along the circumferential direction.

To this end, the brush cover may include an inner tube, an outer tube, and a plurality of partition walls.

The outer tube surrounds the inner tube to be spaced apart from the inner tube from the outside of the inner tube. The partition wall connects the inner tube and the outer tube between the inner tube and the outer tube. Each of the partition walls are spaced apart from each other and are repeatedly formed along the circumferential direction of the brush cover. A space surrounded by the inner tube, the outer tube, and the two partition walls becomes the brush accommodation space.

The cover lever may be pivotably coupled to the brush cover. The cover lever may be formed integrally with the brush cover. The cover lever includes a fixing protrusion. The fixing protrusion is configured to be inserted into the first fixing groove or the second fixing groove while the brush cover is moved in the first direction or in a direction opposite to the first direction with respect to the second body.

The brush may be accommodated in each of the brush accommodating spaces, and may be configured to protrude toward the front of the brush cover when the brush cover moves backward.

The brush cover may include a lever groove.

The lever groove is a hole penetrated inside and outside to expose the second lever, and is formed to extend forward from the rear edge in the first direction.

A third locking groove may be formed on the outer surface of the brush cover.

The third locking groove may be formed on an outer surface of the brush cover in front of the second lever in the first direction.

In some implementations, the pipe assembly comprises a third body and a third lever.

The third body has a pipe shape along the first direction. The third body may be fixed to a rear side of the connection pipe in the first direction, and may be configured to receive the second tool assembly.

The first tool assembly and the second tool assembly may be fitted into the rear of the third body.

The third lever is pivotally coupled to the third body.

The third lever may be configured to be latched or released from the second tool assembly.

The third lever may be pivotally coupled to the third body with respect to a third lever shaft in the second direction. The third lever may include a third locking protrusion. The third locking protrusion is configured to protrude to the inside of the third body and to be inserted into and caught in the third locking groove.

The pipe assembly may include a third elastic body. The third elastic body elastically supports the third lever so that the third locking protrusion protrudes into the third body.

In a state in which the brush cover moves forward in the first direction with respect to the second body so that the brush cover shields the brush, the third locking protrusion may be caught in the third locking groove.

In a state in which the brush cover moves backward in the first direction with respect to the second body so that the brush cover exposes the brush, the third locking protrusion is an outer surface of the brush cover in front of the third locking groove. can be made to reach

The pipe assembly may include a first tool button and a second tool button.

The first tool button may be movably coupled to the third body in a direction orthogonal to the first direction. The first tool button may be configured to rotate the second lever in a direction in which the second lever is disengaged.

The second tool button may be movably coupled to the third body in a direction orthogonal to the first direction. The second tool button may be configured to rotate the third lever in a direction in which the third lever is released.

As described above, the vacuum cleaner includes a first tool assembly, a second tool assembly and a pipe assembly. The first tool assembly having the first suction port is detachably fixed to the main body suction port of the cleaning main body, the second tool assembly having the second suction port is detachably fixed to the first tool assembly, and the pipe assembly is a connecting pipe It is fixed to the back of the and is removably fixed to the second tool assembly. When the connecting pipe is separated from the cleaning body, the first tool assembly and the second tool assembly may be separated from each other, or the second tool assembly and the pipe assembly may be separated from each other. Accordingly, the first suction port or the second suction port can be used selectively and immediately.

In an embodiment of the present invention, the first tool assembly and the second tool assembly may be separated from each other while the user holds the cleaning main body with one hand and the pipe assembly with the other hand, and in this case, the first tool Immediate use of the assembly is achieved. In addition, in an embodiment of the present invention, the second tool assembly and the pipe assembly may be separated from each other in a state in which the user holds the cleaning main body with one hand and the pipe assembly with the other hand, and in this case, the second tool Immediate use of the assembly is achieved. That is, the first tool assembly may be in a usable state by only one operation, and the second tool assembly may be in a usable state by only one operation.

In some implementations, the first tool assembly includes a first rotating body, a second rotating body, a first rotating spring, and a second rotating spring. The first rotating body includes a first half tube and the second rotation body includes a second half tube. When the second tool assembly is separated from the first tool assembly while being fixed to the pipe assembly, the first half tube and the second half tube rotate toward each other to form a first suction port. The first rotating body and the second rotating body can reach a crevice tool or crevice nozzle, and can be effectively used for cleaning a relatively narrow gap.

In some implementations, the first rotating body includes a first pressing portion and the second rotating body includes a second pressing portion. When the second body is coupled to the first tool assembly, the second body presses the first pressing part and the second pressing part toward the inner surface thereof, and rotates so that the first half tube and the second half tube are spread apart from each other. In an embodiment of the present invention, even if the means for widening the first half tube and the second half tube is not provided on the inside of the first half tube and the second half tube, the first half tube and the second half tube can be effectively opened, and the first A passage having a cross-sectional area of sufficient size for the movement of dust may be provided in the tool assembly.

In some implementations, the brush cover is provided with a brush receiving space. The brush accommodating space is provided by an inner tube, an outer tube, and a plurality of partition walls of the brush cover. The brush receiving space is repeatedly formed along the circumferential direction of the brush cover. When the brush is not in use, the brush cover moves forward against the second body, whereby each strand of the brush is inserted into the respective brush receiving space. Accordingly, individual strands constituting the brush may be aligned in a straight line along the first direction, and overall bending and deformation of the brush may be prevented. Also, when the brush is accommodated in the brush accommodating space, dust, hair, etc. attached to the brush can be effectively removed by being caught on the inner tube, outer tube and partition wall of the brush cover constituting the brush accommodation space.

In some implementations, the third locking protrusion engages the third locking groove with the brush cover moved forward in the first direction relative to the second body so that the brush cover shields the brush. Then, in a state in which the brush cover moves backward in the first direction with respect to the second body so that the brush cover exposes the brush, the third locking protrusion is made to contact the outer surface of the brush cover in front of the third locking groove. In this way, the second tool assembly and the pipe assembly can be coupled and fixed in a state in which the brush cover is moved to the front of the second body. Accordingly, it is possible to completely block the exposure of the brush while the connecting pipe is fixedly coupled to the cleaning main body, and it is possible to prevent dust, hair, etc. attached to or attached to the brush from adhering to the user's hand or the like.

In the vacuum cleaner according to the embodiment of the present invention, the first suction port of the first tool assembly and the second suction port of the second tool assembly each form a suction port other than the basic suction port of the suction nozzle. That is, the first tool assembly and the second tool assembly may form a nozzle different from the suction nozzle, and may be used as an accessory of a vacuum cleaner. The first body of the first tool assembly is partially inserted and coupled into the second body of the second tool assembly, and the first tool assembly and the second tool assembly are coupled to the pipe assembly inserted into the third body. In a state in which the suction nozzle, the connecting pipe, the pipe assembly, the second tool assembly, the first tool assembly and the cleaning main body are all coupled to each other, the first tool assembly and the second tool assembly forming nozzles (accessories) other than the suction nozzle are formed. Since it is inserted into the pipe assembly and provided, storage of the first tool assembly and the second tool assembly is easy, and also, when the use of the first tool assembly or the second tool assembly is necessary, immediate use can be achieved.

1 is a perspective view illustrating a vacuum cleaner according to an embodiment of the present invention.

FIG. 2A is a perspective view illustrating a vacuum cleaner according to an embodiment different from FIG. 1 , and FIG. 2B is a diagram illustrating a vacuum cleaner according to an embodiment different from FIGS. 1 and 2A .

3 is a cross-sectional view schematically illustrating a cleaning body.

4 is a view showing a state of use of the vacuum cleaner.

5 is a perspective view illustrating a state in which the cleaning main body, the first tool assembly, the second tool assembly, and the pipe assembly are coupled to each other in the vacuum cleaner.

6 is a perspective view illustrating a state in which the cleaning main body, the first tool assembly, the second tool assembly, and the pipe assembly are separated from each other in the vacuum cleaner of FIG. 5 .

7 is a cross-sectional view illustrating a state in which the cleaning main body, the first tool assembly, the second tool assembly, and the pipe assembly are coupled to each other.

8 is a perspective view illustrating a state in which only the cleaning main body is separated from the vacuum cleaner of FIG. 5 . Here, the first tool assembly, the second tool assembly, and the pipe assembly are coupled to each other.

9 is a perspective view illustrating a state in which the cleaning main body and the first tool assembly are separated from the vacuum cleaner of FIG. 5 .

10 is a perspective view illustrating a state in which the cleaning main body, the first tool assembly, and the second tool assembly are separated from the vacuum cleaner of FIG. 5 .

11 is a perspective view illustrating a state in which the cleaning main body and the first tool assembly are coupled to each other.

12 is an exploded perspective view showing the first tool assembly;

13A is a view showing a state in which the first rotating body and the second rotating body are in close contact with each other in the first tool assembly, and FIG. 13B is the first rotating body and the second rotating body in the first tool assembly. It is the drawing shown.

14 is a cross-sectional view illustrating a state in which the first tool assembly and the second tool assembly are coupled to each other.

15A is a perspective view illustrating a state in which the cleaning main body, the first tool assembly, and the second tool assembly are coupled to each other.

15B is a perspective view illustrating a state in which the brush cover is moved backward in the first direction in FIG. 15A .

16 is an exploded perspective view illustrating a second tool assembly.

17A is a cross-sectional view illustrating a state in which the cleaning main body, the first tool assembly, and the second tool assembly are coupled to each other, and FIG. 17B is a cross-sectional view illustrating a state in which the second lever is operated.

18 is a perspective view illustrating a state in which the second tool assembly is separated from FIG. 15A .

19A is a perspective view illustrating the cleaning main body, the first tool assembly, and the second tool assembly are coupled to each other, and FIG. 15B is a perspective view illustrating the brush cover moving backward in the first direction in FIG. 15A.

20 is a view illustrating a part of a second body of a second tool assembly.

21A is a cross-sectional view illustrating a second tool assembly, and FIG. 21B is a cross-sectional view illustrating a state in which the brush cover is moved backward in the first direction in FIG. 21A.

22 is an exploded perspective view showing the pipe assembly.

23A is a cross-sectional view illustrating a state in which the second tool button is pressed so that the third lever rotates, and FIG. 23B is a cross-sectional view illustrating a state in which the second tool assembly and the pipe assembly are separated.

24A is a cross-sectional view illustrating a state in which the first tool button is pressed so that the second lever rotates, and FIG. 24B is a cross-sectional view illustrating a state in which the second tool assembly fixed to the pipe assembly and the first tool assembly are separated.

25A is a cross-sectional view illustrating a second tool assembly and a pipe assembly, and FIG. 25B is a cross-sectional view illustrating a state when the brush cover is moved backward in the first direction in FIG. 25 .

26A is a perspective view illustrating a state in which the first tool assembly and the second tool assembly are separated according to an embodiment, FIG. 26B is a perspective view of the second tool assembly of FIG. 26A as viewed from another direction, and FIGS. 26C and 26D is a perspective view illustrating a state in which the first tool assembly and the second tool assembly of FIG. 26A are combined, viewed from different directions;

Hereinafter, in order to describe the present invention in more detail, embodiments according to the present invention will be described in more detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout the detailed description.

In describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

When an element is referred to as being "coupled" to another element, unless otherwise specifically limited, it is directly coupled to the other element or fixedly coupled to the other element; or It may be coupled to other components so that they do not move relative to each other.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

1 is a perspective view showing a vacuum cleaner 1 according to an embodiment of the present invention.

FIG. 2A is a perspective view illustrating the vacuum cleaner 1 according to an embodiment different from that of FIG. 1 , and FIG. 2B is a view showing the vacuum cleaner 1 according to an embodiment different from FIGS. 1 and 2A .

3 is a cross-sectional view schematically illustrating the cleaning main body 100 .

The vacuum cleaner 1 is configured to suck in external air and/or foreign substances such as dust and hair.

The vacuum cleaner 1 includes a cleaning main body 100 , a connecting pipe 200 , and a suction nozzle 300 . External air or the like is first introduced through the suction nozzle 300 and then moves to the cleaning main body 100 through the connection pipe 200 .

The cleaning main body 100 is configured to generate a suction force.

To this end, the cleaning main body 100 includes a motor (the first motor 110).

In one embodiment, each of the motors described in the embodiment of the present invention including the first motor 110 may be a DC motor, an AC motor, a universal motor, a BLDC motor, or a stepper motor.

A fan or an impeller may be coupled to the rotation shaft 111 of the first motor 110 of the cleaning main body 100 to rotate, and accordingly, when the first motor 110 rotates, the air flow is generated.

The first motor 110 and the fan or impeller coupled to the first motor 110 in the cleaning main body 100 rotate based on the rotation shaft 111, so that the pressure difference between the inside and the outside of the cleaning main body 100 is may be generated, and accordingly, suction force may be generated in the cleaning main body 100 .

The cleaning main body 100 is provided with a main body suction port 140 .

The main body suction port 140 is an inlet of the cleaning main body 100 , and dust, etc. introduced through the main body suction port 140 is accommodated in the cleaning main body 100 .

The suction nozzle 300 includes a basic suction port 311, which is a hole through which air and/or foreign substances are introduced. (See Fig. 4)

The connection pipe 200 connects the cleaning main body 100 and the suction nozzle 300 . The connection pipe 200 is made in the form of a pipe or tube, and forms a passage through which external air introduced through the basic suction port 311 moves toward the cleaning main body 100 .

The connection pipe 200 may be made of a relatively hard material so as not to be bent or deformed unintentionally. The connection pipe 200 may be made of plastic or metal, or may be made of these.

The connection pipe 200 includes a first connection part 210 and a second connection part 220 .

The first connection part 210 may form an inlet of the connection pipe 200 through which external air flows into the connection pipe 200, and the second connection part 220 has the connection pipe 200, and the air inside the cleaning main body ( The outlet of the connecting pipe 200 exiting toward the 100) can be achieved.

The first connection part 210 and the second connection part 220 may form both ends of the connection pipe 200 .

In one embodiment, while the cleaning main body 100 forms a fixed shape, the cleaning main body 100 may be fixedly connected to the second connection part 220 side of the connection pipe 200 . That is, the cleaning main body 100 and the connecting pipe 200 may be fixed to each other without moving separately from each other. In this case, the vacuum cleaner 1 may be formed in the form of a 'stick-type cleaner'.

In another embodiment, the cleaning main body is made to have a variable shape, and a part of the cleaning main body may be made to be movable relative to the connecting pipe 200 . In an embodiment, the cleaning main body 100 may be divided into a main body 101 , a main body suction port 140 , and a hose 102 . In the cleaning main body 100 , a motor for generating a suction force to the main body suction port 140 , etc. may be provided in the main body 101 . A flexible hose 102 may be coupled between the main suction port 140 of the cleaning main body 100 and the main body 101 . That is, the vacuum cleaner 1 may be configured such that the main body 101 and the connecting pipe 200 of the cleaner main body 100 can move separately. At this time, a separate handle 103 may be fixedly coupled to the main body suction port 140 . In this case, the vacuum cleaner 1 may be formed in the form of a 'canister-type cleaner' (refer to FIG. 2B).

Hereinafter, as shown in FIG. 1 or FIG. 2A , the main body suction port 140 is formed to be fixed to the cleaning main body 100 , and the cleaning main body 100 is connected to the second connection part 220 of the connecting pipe 200 . It will be described based on the form that is fixedly connected to the side.

In one embodiment, the cleaning main body 100 may include a handle 120 , a dust container 130 , a main body suction port 140 , and a battery 150 .

The handle 120 is formed on one side of the cleaning main body 100 . The handle 120 is shaped so that the user can hold it stably using his or her hand. The handle 120 may be formed on the side opposite to the body suction port 140 (opposite to the body suction port 140 ). If the main body suction port 140 is formed in the front of the cleaning main body 100, the handle 120 may be formed in the rear of the cleaning main body (100).

The cleaning main body 100 may be provided with an operation button 160 capable of operating the vacuum cleaner 1 at a position adjacent to the handle 120 .

The dust container 130 is a container configured to collect foreign substances such as dust separated from the air inside the cleaning main body 100 . Here, foreign substances such as dust introduced into the cleaning main body 100 may be separated from the air by a cyclone method. In addition, air separated from foreign substances in the cleaning main body 100 may be discharged to the outside of the cleaning main body 100 through a separate outlet 170 .

The dust container 130 may be detachably coupled to the cleaning main body 100 . The dust container 130 may be made transparent so that foreign substances collected therein can be visually confirmed from the outside.

The battery 150 is configured to supply power to each component constituting the vacuum cleaner 1 . The battery 150 may supply power to the first motor 110 of the cleaning main body 100 .

The main body suction port 140 forms an inlet of the cleaning main body 100 through which air, dust, etc. flows into the cleaning main body 100 . The main body suction port 140 may be formed in a shape protruding to the outside of the cleaning main body 100 .

The second connection part 220 of the connection pipe 200 may be fixedly connected to the body suction port 140 side.

However, in the embodiment of the present invention, the second connection part 220 of the connection pipe 200 is not directly connected to the body suction port 140, but the first tool assembly 400 provided between the connection pipe and the body suction port. , the second tool assembly 500 and the pipe assembly 600 are fixedly connected via the medium.

4 is a view showing a state of use of the vacuum cleaner 1 . In FIG. 4 , a passage (a passage through which air, dust, etc. moves, 301a) provided in the suction nozzle 300 is indicated by a dotted line.

Directions X1, Y1, and Z1 described in the embodiment of the present invention are directions orthogonal to each other, respectively. X1 may be a front direction of the vacuum cleaner 1 , Y1 may be a left direction of the vacuum cleaner 1 , and Z1 may be an upper direction of the vacuum cleaner 1 . X1 and Y1 may be in a direction parallel to the bottom surface B, and Z1 may be a direction perpendicular to the bottom surface B.

The user (U) can use the vacuum cleaner (1) in a state of holding the cleaning main body (100), at this time, the connection pipe (200) is inclined in the front and lower side of the user (U), the suction nozzle (300) ) may be located on the bottom surface (B) in front of the user (U). In this state, the use of the vacuum cleaner 1 may be a natural use state of the vacuum cleaner 1 .

In one embodiment, the suction nozzle 300 may have a structure suitable for sucking dust or the like in a state placed on the bottom surface B in front of the user U. To this end, the suction nozzle 300 itself may be configured such that the front and rear directions are separated from each other, and the up and down directions are separated from each other.

Assuming that the suction nozzle 300 is placed on a flat bottom surface B along the horizontal direction, the front direction (X1) and the left direction (Y1) of the suction nozzle 300 may be directions parallel to the horizontal direction, respectively. And, the upper direction (Z1) of the suction nozzle 300 may be a direction parallel to the vertical direction.

The suction nozzle 300 may be formed in a symmetrical shape.

As described above, the suction nozzle 300 includes a basic suction port 311 .

The basic suction port 311 may be the first inlet through which air and foreign substances are introduced into the vacuum cleaner 1, and the suction nozzle 300 may have various structures within the range including the basic suction port 311. there is.

A passage (suction nozzle passage, 301a) through which air, foreign substances, etc. move is formed inside the suction nozzle 300, and the basic suction port 311 forms an inlet of the passage 301a.

In one embodiment, the suction nozzle 300 may include a nozzle housing 301 and a connection neck 302 . The passage 301a communicates with the inside of the connection pipe 200 through the nozzle housing 301 and the connection neck 302 .

The nozzle housing 301 may be placed on the floor to move along the bottom surface (B). In this case, the basic suction port 311 may be formed on the bottom surface of the nozzle housing 301 .

For smooth movement of the nozzle housing 301 placed on the floor, a plurality of wheels (casters 303 ) may be formed on the lower surface of the nozzle housing 301 .

The nozzle housing 301 may include a nozzle head 310 and a nozzle neck 320 . The nozzle head part 310 may form a front part of the nozzle housing 301 , and the nozzle neck part 320 may form a rear part of the nozzle head part 310 .

The basic suction port 311 may be formed on the bottom surface of the nozzle head part 310 .

The nozzle neck portion 320 is formed in a tube shape and extends from the rear of the nozzle head portion 310 in the rearward direction. In the nozzle housing 301 , the nozzle neck part 320 is a portion coupled to the connection neck 302 , and the nozzle neck part 320 may be rotatably coupled to the connection neck 302 .

The connection neck 302 is a portion coupled to the connection pipe 200 in the suction nozzle 300 . The connection neck 302 is detachably coupled to the first connection part 210 , and when coupled, the connection neck 302 and the first connection part 210 are fixed to each other. The connection neck 302 may be made in the form of a tube, and the inside thereof communicates with the basic suction port 311 , and also communicates with the inside of the connection pipe 200 .

Foreign substances introduced from the suction nozzle 300 into the basic suction port 311 may move toward the connection pipe 200 through the inside of the nozzle neck part 320 and the inside of the connection neck 302 . A separate corrugated pipe 304 may be inserted into the nozzle housing 301 (in particular, the nozzle neck part 320) and the connection neck 302, and when the corrugated pipe 304 is provided, the basic suction port 311 The foreign substances (dust, etc.) introduced into the corrugated pipe 304 move toward the connection pipe 200 through the inside of the corrugated pipe 304 .

The connection neck 302 forms a rear portion of the suction nozzle 300 , and may be formed behind the nozzle housing 301 .

As described above, the nozzle housing 301 (the nozzle neck portion 320) and the connection neck 302 are rotatably coupled to each other. The nozzle housing 301 (nozzle neck part 320) and the connection neck 302 are rotatably coupled to each other based on the nozzle rotation shaft S1. The nozzle rotation shaft (S1) may be made parallel to the bottom surface (B).

In one embodiment, the suction nozzle 300 may be provided with a rotary cleaner 305 . The rotary cleaner 305 is generally formed in the form of a roller, and is rotatably coupled to the nozzle housing 301 (the nozzle head part 310) with respect to the central axis 305a thereof. The rotary cleaner 305 may be coupled to the bottom surface of the nozzle housing 301 (the nozzle head part 310) in front of the basic suction port 311. (See FIG. 1)

The rotary cleaner 305 may be formed in the same form as an agitator of a vacuum cleaner.

A motor (second motor 306 ) may be provided inside the suction nozzle 300 for rotation of the rotary cleaner 305 .

In one embodiment, the outer peripheral surface layer 305b including a brush and/or a brush and the like may be formed on the outer peripheral surface of the rotary cleaner 305 . The outer circumferential layer 305b of the rotary cleaner 305 may be disposed in contact with the bottom surface B or close to the bottom surface B, and the rotary cleaner 305 rotates to remove dust from the floor and the like through the basic suction port 311 ) can be swept or adsorbed.

In another embodiment, the suction nozzle 300 may be provided with a mop 307 (see FIG. 2). The mop 307 is made flat and is located on the bottom surface of the nozzle housing 301 (nozzle head 310). Doedoe, it may be coupled to the nozzle housing 301 (nozzle head portion 310) rotatably about the rotation shaft 307a perpendicular to the bottom surface (B) or substantially perpendicular to the bottom surface (B). Two mops 307 may be provided, and the two mops 307 may rotate in opposite directions. A motor (third motor 308 ) may be provided inside the suction nozzle 300 for rotation of the mop 307 .

As described above, the connection pipe 200 includes a first connection part 210 and a second connection part 220 . The direction from the first connection part 210 to the second connection part 220 may be the longitudinal direction of the connection pipe 200, and the direction from the second connection part 220 to the first connection part 210 is the connection pipe ( 200) in the longitudinal direction.

In the embodiment of the present invention, the longitudinal direction (axial direction) of the connection pipe 200 may be defined as the first direction (X2).

In the embodiment of the present invention, the direction from the main body suction port 140 to the suction nozzle 300 may be defined as the first direction (X2).

The direction in which the main body suction port 140 protrudes from the cleaning main body 100 may be defined as the first direction (X2), and, on the other hand, the direction in which the connection pipe is positioned relative to the cleaning main body 100 is the first direction (X2). ) can be

The main body suction port may be formed in the form of a tube protruding from the cleaning main body in the first direction.

In an embodiment of the present invention, the direction from the second connection part 220 to the first connection part 210 may be the first direction X2.

And, in the embodiment of the present invention, a direction orthogonal to the first direction X2 will be described as the second direction Y2. In a state in which the connecting pipe 200 is placed so that the longitudinal direction of the connecting pipe 200 is parallel to the floor surface B, the second direction Y2 may be made parallel to the floor surface B.

When the first direction X2 is a direction parallel to the front-rear direction, the second direction Y2 may be a direction parallel to the left-right direction.

A direction orthogonal to the first direction X2 and the second direction Y2 is defined as the third direction Z2. In particular, the third direction (Z2) may be a vertical direction when the connecting pipe 200 is laid down parallel to the flat floor in the horizontal direction, and when the connecting pipe 200 is erected vertically, the third direction (Z2) is the front can be direction.

In one embodiment, the connecting pipe may be formed in a shape in which its longitudinal direction is curved.

In another embodiment, the connecting pipe 200 may be formed in a form in which its longitudinal direction forms a straight line. That is, the connecting pipe 200 may be formed parallel to the first direction X2 , and the central axis of the connecting pipe 200 may be formed parallel to the first direction X2 .

Based on the first direction X2 , the first connection part 210 forms a part of the front side of the connection pipe 200 , and the second connection part 220 forms a part on the rear side of the connection pipe 200 .

The connecting pipe 200 may have a constant cross-section along its longitudinal direction (first direction X2), or may have a variable cross-section along its longitudinal direction.

The connection pipe 200 may be formed in a circular tube shape, or may be formed in a polygonal tube shape.

As described above, the connection neck 302 of the suction nozzle 300 is coupled to the first connection portion 210 of the connection pipe 200, and is also separated.

In a state in which the suction nozzle 300 is separated from the connection pipe 200 , a nozzle other than the suction nozzle 300 may be coupled to the first connection part 210 of the connection pipe 200 .

5 is a perspective view illustrating a state in which the cleaning main body 100 , the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 are coupled to each other in the vacuum cleaner 1 .

6 is a view showing a state in which the cleaning main body 100, the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 are separated from each other in the vacuum cleaner 1 of FIG. is a perspective view.

7 is a cross-sectional view illustrating a state in which the cleaning main body 100, the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 are coupled to each other.

8 is a perspective view illustrating a state in which only the cleaning main body 100 is separated from the vacuum cleaner 1 of FIG. 5 . Here, the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 are coupled to each other.

9 is a perspective view illustrating a state in which the cleaning main body 100 and the first tool assembly 400 are separated from the vacuum cleaner 1 of FIG. 5 . Here, the cleaning main body 100 and the first tool assembly 400 are coupled to each other, and the second tool assembly 500 and the pipe assembly 600 are coupled to each other.

10 is a perspective view illustrating a state in which the cleaning main body 100 , the first tool assembly 400 , and the second tool assembly 500 are separated from the vacuum cleaner 1 of FIG. 5 . Here, the cleaning main body 100 , the first tool assembly 400 , and the second tool assembly 500 are coupled to each other.

The vacuum cleaner 1 includes a first tool assembly 400 , a second tool assembly 500 , and a pipe assembly 600 .

Each of the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 described in the embodiment of the present invention may form a passage through which dust or the like moves. The first tool assembly 400 and the second tool assembly 500 described in the embodiment of the present invention may each form a suction port for sucking dust or the like. To this end, the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 described in the embodiment of the present invention may each include a configuration made of a pipe shape. In this case, in the configuration of the pipe shape, the axial direction may be parallel to the first direction X2 , and the axial direction may coincide with the first direction X2 .

The pipe described in the embodiment of the present invention is made in the form of a hollow pipe. The pipe described in the embodiment of the present invention may be formed in the form of a pipe forming a passage in the first direction X2. In the pipe described in the embodiment of the present invention, at least a portion of the outer diameter or inner diameter in the first direction (X2) may be made constant, or at least a portion of the outer diameter or inner diameter is deformed along the first direction (X2) can be in the form The pipe described in the embodiment of the present invention may have various cross-sectional shapes, for example, may be formed in a circular shape, an oval shape, or a polygonal shape.

The vacuum cleaner 1 may be used in which the cleaning main body 100 , the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 are fixedly coupled to each other.

In the vacuum cleaner 1, the cleaning main body 100, the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 may be separated from each other, respectively. (See FIG. 6)

In the vacuum cleaner 1 , the first tool assembly 400 , the second tool assembly 500 , and the pipe assembly 600 coupled to each other may be separated from the cleaner main body 100 (see FIG. 8 ). , the cleaning main body 100 may be used in combination with other nozzles.

In the vacuum cleaner 1 , the second tool assembly 500 and the pipe assembly 600 may be separated from the first tool assembly 400 . At this time, the cleaning main body 100 and the first tool assembly 400 may be coupled to each other. (See FIG. 9 ) In this case, the first tool assembly 400 itself forms a single nozzle, and the first Dust and the like may be sucked through the first suction port 405 of the tool assembly 400 .

In the vacuum cleaner 1 , the pipe assembly 600 may be separated from the second tool assembly 500 . At this time, the cleaning main body 100 , the first tool assembly 400 , and the second tool assembly 500 may be coupled to each other (see FIG. 10 ). In this case, the second tool assembly 500 is one by itself. Forming a nozzle of , dust and the like may be sucked through the second suction port 505 of the second tool assembly 500 .

11 is a perspective view illustrating a state in which the cleaning main body 100 and the first tool assembly 400 are coupled to each other. In this state, the user may operate the cleaning main body 100 to use the first tool assembly 400 as a nozzle for sucking dust or the like.

12 is an exploded perspective view illustrating the first tool assembly 400 .

The first tool assembly 400 includes a first suction port 405 communicating with the body suction port 140 . The first tool assembly 400 may be detachably fixed to the main body suction port 140 .

The first tool assembly 400 includes a first body 410 , a first lever 420 , a first rotation body 450 , and a second rotation body 460 .

Also, the first tool assembly 400 includes a first elastic body 430 , a first button cover 440 , a first rotation spring 470 , and a second rotation spring 480 .

The main body suction port 140 may be formed in the form of a pipe in the first direction. A first locking groove 141 may be formed on the outer surface of the main body suction port 140 .

The first locking groove 141 may be formed in the form of a concave groove on the outer surface of the main body suction port 140 .

In one embodiment, the first locking groove 141 may be formed in front of the body suction port 140 in the third direction Z2. Therefore, when the body suction port 140 is placed parallel to the bottom surface (B), it can be said that the first locking groove 141 is located above the body suction port 140, and the body suction port 140 is placed on the bottom surface (B) ) and when erected vertically, the first locking groove 141 can be said to be located in front of the main body suction port 140 .

The first body 410 is made to be detachable from the main body inlet 140 .

The first body 410 may be formed in a pipe shape along the first direction. The first body 410 may have a central axis direction parallel to the first direction X2 .

The first body 410 may be divided into a first rear portion 410a and a first front portion 410b.

In the first direction X2 , the first rear portion 410a forms a rear portion of the first body 410 , and the first front portion 410b forms a front portion of the first body 410 .

The outer diameter of the first front portion 410b may be smaller than the outer diameter of the first rear portion 410a.

A first opening 411 that is a through hole may be provided in the first body 410 .

The first opening 411 may be formed in the first rear portion 410a.

The first opening 411 is formed in front of the first body 410 in the third direction Z2 . The first opening 411 may be formed at a position corresponding to the first lever 420 , and in particular, may be formed at a position corresponding to the first locking protrusion 421 of the first lever 420 .

In one embodiment, the first body 410 and the main body suction port 140 may be coupled to each other while the main body suction port 140 is inserted into the first body 410 (while being fitted). That is, the main body suction port 140 is inserted into the first body 410 while moving in the first direction X2, so that the two can be combined.

The first body 410 and the main body inlet 140 are coupled to fit each other. That is, in a state in which the first body 410 and the main body inlet 140 are coupled, there is no flow between the first body 410 and the main body inlet 140 in a direction perpendicular to the first direction X2. .

The first button cover 440 shields the first opening 411 and is fixedly coupled to the first body 410 from the outside of the first lever 420 .

The first lever 420 includes a first locking protrusion 421 . Also, the first lever 420 further includes a first rotation center portion 422 and a first button portion 423 . The first locking protrusion 421, the first rotation center portion 422 and the first button portion 423 may all be integrally formed.

The first lever 420 is rotatably coupled to the first body 410 based on the first lever shaft S2 (pivot). The first lever 420 may be coupled to the first body 410 from the front in the third direction Z2 . The first lever shaft S2 of the first lever 420 may be parallel to the second direction Y2.

The first rotation center portion 422 forms a rotation shaft (first lever shaft S2) of the first lever 420. The first rotation center portion 422 is located at a position closer to the cleaning main body 100 than the first locking protrusion 421 . The first rotation center 422 may be supported on one side of the first body 410 .

The first locking protrusion 421 protrudes in the inner direction of the first body 410 . That is, the first locking protrusion 421 has a shape that protrudes in a direction opposite to the third direction Z2. The first locking protrusion 421 may protrude inwardly of the first body 410 through the first opening 411 . Depending on the degree of rotation of the first lever 420 with respect to the first body 410 , the first locking protrusion 421 may protrude more inward than the inner surface of the first body 410 , or the first The locking protrusion 421 may be located more outside than the inner surface of the first body 410 or located at the same position.

In a state in which the first locking protrusion 421 protrudes more inward than the inner surface of the first body 410 , the first locking protrusion 421 is inserted into and caught in the first locking groove 141 .

The first button portion 423 may be formed on the opposite side of the first locking protrusion 421 with respect to the first rotation center portion 422 . The first button portion 423 extends from the first rotation center portion 422 and protrudes out of the first button cover 440 . The first button part 423 is spaced apart from the outer surface of the first body 410 from the outside of the first body 410, and the user presses the first button part 423 and uses the first rotation center part 422 as a rotation axis. The first lever 420 may be rotated (pivoted).

The first elastic body 430 may be made of various materials and structures that are elastically deformed, and may be formed in the form of a leaf spring, a torsion spring, or a coil spring.

The first elastic body 430 elastically supports the first lever 420 such that the first locking protrusion 421 protrudes to the inside of the first body 410 . The first elastic body 430 elastically supports the first lever 420 so that the first locking protrusion 421 is inserted into the first locking groove 141 .

A first elastic body coupling portion 424 may be formed on the first lever 420 . The first elastic body coupling portion 424 may be formed integrally with other components constituting the first lever 420 . The first elastic body coupling portion 424 forms a space in which the first elastic body 430 is coupled between the first button cover 440 and the first elastic body portion 424 . When the first locking protrusion 421 is a surface facing the inside of the first body 410 , the first elastic body coupling unit 424 may be a surface facing the outside of the first body 410 .

When the main body suction port 140 is fully inserted into the first body 410 and no external force is applied (when a separate external force does not act on the first button part 423), the first elastic body 430 ), the state in which the first locking protrusion 421 is inserted into the first locking groove 141 is maintained. At this time, the fixed coupling (fastening) of the cleaning main body 100 (the main body suction port 140) and the first tool assembly 400 (the first body 410) is maintained.

When the body suction port 140 is inserted into the first body 410 and the first button 423 is pressed to rotate the first lever 420, the first elastic body 430 is compressed and the first locking protrusion (421) is separated from the first locking groove (141). Accordingly, the main body suction port 140 (cleaning main body 100 ) is in a detachable state from the first tool assembly 400 (the first body 410 ), and the user can remove the body suction port from the first tool assembly 400 . It can be separated by pulling 140 in a direction opposite to the first direction X2.

A second locking groove 412 may be formed on an outer surface of the first body 410 .

The second locking groove 412 may be formed in the first front part 410b.

The second locking groove 412 may be formed in the form of a concave groove on the outer surface of the first body 410 .

In one embodiment, the second locking groove 412 may be formed in front of the first body 410 in the third direction Z2. Therefore, when the first body 410 is placed parallel to the bottom surface B, the second locking groove 412 can be said to be located on the upper side of the first body 410, and the first body 410 is located on the floor. When erected perpendicular to the surface B, the second locking groove 412 can be said to be positioned in front of the first body 410 .

The first locking groove 141 is located in front of the first lever 420 in the first direction X2.

13A is a view illustrating a state in which the first rotating body 450 and the second rotating body 460 are in close contact with each other in the first tool assembly 400 , and FIG. 13B is the first rotating body 450 in the first tool assembly 400 . It is a view showing a state in which the rotating body 450 and the second rotating body 460 are separated from each other.

14 is a cross-sectional view illustrating a state in which the first tool assembly 400 and the second tool assembly 500 are coupled to each other.

When the first tool assembly 400 and the second tool assembly 500 are separated from each other, the first tool assembly 400 may be in the same state as in FIG. 13A, and the first tool assembly 400 and the second tool assembly ( When 500 is coupled to each other, the first tool assembly 400 may be in a state as shown in FIG. 13B .

Front ends of the first rotating body 450 and the second rotating body 460 based on the first direction X2 are located in front of the first body 410 , and the first rotating body 410 against the first body 410 ( As the 450 and the second rotating body 460 rotate (rotate in opposite directions), the first rotating body 450 and the second rotating body 460 may form a first suction port 405 .

The first rotating body 450 and the second rotating body 460 are rotatably coupled to the first body 410 , respectively. The first rotating body 450 and the second rotating body 460 may be rotatably coupled to the first front part 410b of the first body 410 .

The first rotating body 450 and the second rotating body 460 may be positioned on opposite sides of the first body 410 and may be symmetrical to each other. The first rotating body 450 and the second rotating body 460 may be symmetrical about a central plane CS orthogonal to the second direction Y2.

The rotation axis of the first rotation body 450 (the first rotation shaft S3 ) and the rotation axis of the second rotation body 460 (the second rotation shaft S4 ) may be parallel to the third direction Z2 .

The first rotating body 450 and the second rotating body 460 are coupled to the front portion of the first body 410 with respect to the first direction X2. The first rotating body 450 and the second rotating body 460 may be coupled to the front end of the first body 410 with respect to the first direction X2.

While the first rotating body 450 and the second rotating body 460 are rotated in opposite directions with respect to the first body 410, the front ends of the first rotating body 450 and the second rotating body 460 are respectively. These can be rotated away from each other (see Fig. 13b), and each front end can be rotated so that they are closer to each other (see Fig. 13a).

As will be described later, when the first tool assembly 400 and the second tool assembly 500 are coupled to each other, the second body 510 of the second tool assembly 500 rotates the first rotation body 450 and The second rotating body 460 is rotated while pressing, and the first rotating body 450 and the second rotating body 460 are placed in a state in which their front ends are separated from each other by the second body 510 .

When the second tool assembly 500 is separated from the first tool assembly 400 (the first body 410 ), the first rotation body 450 and the second rotation body 460 are attached to the second body 510 . is not supported, and accordingly, the first rotating body 450 and the second rotating body 460 may rotate in opposite directions so that their respective front ends are close to each other.

Accordingly, the first rotating body 450 and the second rotating body 460 may form a first suction port 405 communicating with the inside of the main body suction port 140 .

When the first rotating body 450 and the second rotating body 460 form the first suction port 405, the first rotating body 450 and the second rotating body 460 are combined with each other to form a single tube make up That is, the first suction port 405, which is a hole opened at the front end of the pipe formed by the combination of the first rotating body 450 and the second rotating body 460, is provided, and the first rotating body 450 and the second rotating body 450 are provided. The first body 410 is coupled to the back of the tube formed by the combination of the entire 460 .

The first suction port 405 forms an inlet through which air, dust, etc. are introduced into the first body 410 and the cleaning main body 100, and within this range, the first rotating body 450 and the second rotating body 460 are formed. ) can be formed in various forms.

For the formation of the first suction port 405 , the first rotating body 450 and the second rotating body 460 may be generally formed in a half tube shape. That is, the first rotating body 450 and the second rotating body 460 forming a symmetrical semi-tubular shape form a completed tube in a state in which the first rotating body 450 and the second rotating body 460 are closely coupled to each other, and the first rotating body 450 and the second rotating body 450 are formed. When the two rotating bodies 460 are spread apart from each other, it may be formed in a form in which two half-length tubes are provided.

As such, in the vacuum cleaner 1 according to the embodiment of the present invention, the first rotating body 450 and the second rotating body 460 form a 'variable nozzle'.

In addition, the variable nozzle (the first rotating body 450 and the second rotating body 460) is used as a new nozzle other than the suction nozzle 300, and when the suction nozzle 300 is referred to as a first nozzle, the variable nozzle corresponds to the second nozzle.

Since the variable nozzle (the first rotating body 450 and the second rotating body 460) is coupled to the connecting pipe 200 and/or the cleaning main body 100, there is no risk of loss, and there is no risk of loss other than the suction nozzle 300. Since the variable nozzle can be used as soon as the first tool assembly 400 is separated from the connecting pipe 200 for use of another nozzle, the convenience of use can be significantly improved.

In addition, the first rotation body 450 and the second rotation body 460 are in close contact with the inner peripheral surface of the second body 510 when the first tool assembly 400 and the second tool assembly 500 are coupled to each other. In particular, since the first rotating body 450 and the second rotating body 460 are each made in a semi-tubular shape, they can be closely attached to the inner circumferential surface of the second body 510, and the first rotation It is possible to minimize the increase in volume by the entire 450 and the second rotating body 460, and to form a passage of sufficient size for the movement of dust.

The first rotating body 450 includes a first half tube 451 and a first pressing part 452 .

The first half tube 451 is generally formed in a semi tube shape, and includes a first edge 451a and a second edge 451b that are parallel to each other.

The first half tube 451 includes a first half tube wall 451c that forms a wall between the first edge 451a and the second edge 451b.

The first pressing portion 452 extends to the other side from the first half tube 451 with respect to the first rotational shaft S3.

With respect to the first rotational shaft (S3), when the first half tube 451 generally forms a front portion, the first pressing portion 452 may form a rear portion. Compared to the first half tube 451 , the first pressing part 452 may be made very small.

The first rotating body 450 is rotatably coupled to the first body 410 based on the first rotating shaft S3. At this time, the first half tube 451 protrudes from the first body 410 in the first direction (X2), and the first pressing part 452 extends from the first body 410 in the second direction (Y2). can be formed into a protruding shape.

A first pressing hole 415 is formed in the first body 410 . The first pressing hole 415 may be a hole penetrating the first body 410 , and the first pressing hole 415 may be a hole penetrating the first body 410 substantially parallel to the second direction Y2 . there is. The first pressing hole 415 may be formed in the first front part 410b.

In a state in which the first rotating body 450 is coupled to the first body 410 , the first pressing part 452 may protrude to the outside of the first body 410 through the first pressing hole 415 . The degree of protrusion of the first pressing part 452 through the first pressing hole 415 in a state in which the first half tube 451 and the second half tube 461 rotate inward as close to each other as possible to form the first suction port 405 . is made the largest, and the degree of protrusion of the first pressing part 452 through the first pressing hole 415 in a state in which the first half tube 451 and the second half tube 461 are rotated to the outside as far as possible from each other made the smallest

The second rotating body 460 includes a second half tube 461 and a second pressing part 462 .

The second half tube 461 is generally formed in a semi tube shape, and includes the third edge 461a and the fourth edge 461b that are parallel to each other. The second half tube 461 is symmetrical with the first half tube 451 about the central plane CS.

The second half tube 461 includes a second half tube wall 461c that forms a wall between the third edge 461a and the fourth edge 461b.

When the first half tube 451 and the second half tube 461 come close to each other to form the first suction port 405 and are in close contact with each other, the first half tube wall 451c and the second half tube wall 461c are spaced apart from each other. The first semi-tubular wall 451c and the second semi-tubular wall 461c may have a shape in which the distance between them becomes narrower toward the front in the first direction X2. That is, the first half tube 451 and the second half tube 461 forming the first suction port 405 may have a shape in which the cross-sectional area thereof becomes narrower toward the front in the first direction X2.

The second pressing part 462 extends to the other side from the second half tube 461 with respect to the second rotation shaft S4.

With respect to the second rotation shaft S4, when the second half tube 461 generally forms a front portion, the second pressing portion 462 may form a rear portion. However, compared to the second half tube 461, the second pressing portion 462 may be made very small.

The second rotating body 460 is rotatably coupled to the first body 410 based on the second rotating shaft S4. At this time, the second half tube 461 protrudes from the first body 410 in the first direction X2 , and the second pressing part 462 extends from the first body 410 in the second direction Y2 . It can form a protruding shape in the opposite direction of

A second pressing hole 416 is formed in the first body 410 . The second pressing hole 416 may be a hole penetrating the first body 410 , and the second pressing hole 416 may be a hole penetrating the first body 410 substantially parallel to the second direction Y2 . there is. The second pressing hole 416 may be formed in the first front part 410b.

In the first body 410 , the first pressing hole 415 and the second pressing hole 416 may be formed on opposite sides of each other. When the first pressing hole 415 is formed on the left side of the first body 410 , the second pressing hole 416 may be formed on the right side of the first body 410 .

In a state in which the second rotating body 460 is coupled to the first body 410 , the second pressing part 462 may protrude to the outside of the first body 410 through the second pressing hole 416 . The degree of protrusion of the second pressing part 462 through the second pressing hole 416 in a state in which the first half tube 451 and the second half tube 461 rotate inward as close to each other as possible to form the first suction port 405 . is the largest, and the degree of protrusion of the second pressing part 462 through the second pressing hole 416 in a state in which the first half tube 451 and the second half tube 461 are rotated to the outside as far as possible from each other made the smallest

The second pressing part 462 is symmetrical with the first pressing part 452 about the central surface CS.

The vacuum cleaner 1 may include a first rotating spring 470 and a second rotating spring 480 .

The first rotation spring 470 and the second rotation spring 480 may be formed in various spring shapes elastically deformed, respectively. The first rotation spring 470 and the second rotation spring 480 may each be formed in the form of a leaf spring. The first rotational spring 470 and the second rotational spring 480 may be symmetrical with respect to the central surface CS.

The first rotating spring 470 has a part fixed to the first rotating body 450 and the other part fixed to the first body 410, the front end of the first rotating body 450 (first direction X2) The front end based on) elastically supports the first rotating body 450 so that it rotates toward the second rotating body 460 .

The second rotating spring 480 is partly fixed to the second rotating body 460 and the other part is fixed to the first body 410, the front end of the second rotating body 460 (first direction X2). The front end based on) elastically supports the second rotating body 460 so that it rotates toward the first rotating body 450 .

As will be described later, the second body 510 may be formed in a pipe shape generally along the first direction. When the first tool assembly 400 and the second tool assembly 500 are coupled to each other, the front of the first body 410 is inserted from the rear of the second body 510 in the first direction X2.

The second body 510 includes a pressing surface 515 forming a rear inner circumferential surface in the first direction X2. The pressing surface 515 may form an inner peripheral surface of the second rear portion 510a. The pressing surface 515 may have a shape in which an inner diameter increases toward the rear in the first direction X2 .

When the pressing surface 515 is coupled to the first body 410 and the second body 510 , the front of the first body 410 in the first direction X2 is the back of the second body 510 . When inserted, the first pressing part 452 and the second pressing part 462 are pressed and the first rotating body 450 and the second rotating body 460 are rotated.

When the first body 410 and the second body 510 are coupled to each other, the first pressing portion 452 is pressed by the pressing surface 515 so that the first half tube 451 rotates outward, and the pressing surface When the second pressing part 462 is pressed by 515 and the second half tube 461 is rotated outward, and the first body 410 and the second body 510 are coupled to each other, the first half tube 451 and the second half tube 461 are spread apart from each other and maintained in close contact with the inner surface of the second body 510 .

When the first body 410 and the second body 510 are separated from each other, the first rotating body 450 is rotated by the first rotating spring 470 , and the second rotating body 450 is rotated by the second rotating spring 480 . The rotating body 460 rotates, and the first half pipe 451 and the second half pipe 461 come close to each other to form a first suction port 405 .

When the first rotating body 450 and the second rotating body 460 form the first suction port 405, the first corner 451a is in close contact with the third corner 461a, and the second corner 451b is It is in close contact with the fourth corner 461b.

When the first rotating body 450 and the second rotating body 460 form the first suction port 405 , the cross-sectional area of the inner space of the first rotating body 450 and the second rotating body 460 is in the first direction. It may be formed in a shape that becomes narrower toward the front of (X2). That is, the first inlet 405 may be formed to have a relatively narrow interval, and the width of the first inlet 405 may be smaller than the inner diameter of the first body 410 .

When the first rotating body 450 and the second rotating body 460 form the first suction port 405, the combined first rotating body 450 and the second rotating body 460 is a single crevasse tool ( It can form a crevice tool or crevice nozzle).

15A is a perspective view illustrating a state in which the cleaning main body 100, the first tool assembly 400, and the second tool assembly 500 are coupled to each other. In this state, the user may operate the cleaning main body 100 to use the second tool assembly 500 as a nozzle for sucking dust or the like.

15B is a perspective view illustrating a state in which the brush cover 550 is moved backward in the first direction X2 in FIG. 15A . Even in this state, the user can operate the cleaning main body 100 to use the second tool assembly 500 as a nozzle for sucking dust or the like.

16 is an exploded perspective view showing the second tool assembly 500 .

17A is a cross-sectional view illustrating a state in which the cleaning main body 100, the first tool assembly 400, and the second tool assembly 500 are coupled to each other, and FIG. 17B is a state in which the second lever 520 is operated. It is one cross section.

18 is a perspective view illustrating a state in which the second tool assembly 500 is separated from FIG. 15A .

The second tool assembly 500 has a second suction port 505 communicating with the first body 410 . The second tool assembly 500 may be detachably fixed to the first tool assembly 400 .

The second tool assembly 500 includes a second body 510 and a second lever 520 .

Also, the second tool assembly 500 includes a second elastic body 530 .

The second body 510 has a pipe shape along the first direction. The front edge of the second body 510 in the first direction X2 may form the second suction port 505 .

The second body 510 may have a central axis direction parallel to the first direction X2 .

The front edge of the second body 510 in the first direction X2 may be formed such that a front portion in the third direction protrudes more forward in the first direction X2 than a rear portion in the third direction. That is, when viewed from the side, the front edge of the second body 510 forming the second suction port 505 of the second tool assembly 500 in the first direction X2 may be formed to have an oblique shape.

The second body 510 is configured to be detachable from the first body 410 . The first body 410 is fitted into the rear of the second body 510 in the first direction X2 . The second body 510 may be coaxially coupled to the first body 410 to accommodate the first rotation body 450 and the second rotation body 460 .

The second body 510 may be divided into a second rear portion 510a and a second front portion 510b.

In the first direction X2 , the second rear portion 510a forms a rear portion of the second body 510 , and the second front portion 510b forms a front portion of the second body 510 .

The outer diameter of the second front portion 510b may be smaller than the outer diameter of the second rear portion 510a.

When the second body 510 and the first body 410 are coupled, the first front part 410b of the first body 410 fits into the second rear part 510a of the second body 510. can be fitted to fit.

The outer peripheral surface of the second rear portion 510a of the second body 510 may be formed to substantially coincide with or completely coincide with the outer peripheral surface of the first rear portion 410a of the first body 410 . That is, in a state in which the first body 410 and the second body 510 are coupled to each other, there may be no step difference between the outer peripheral surface of the first rear part 410a and the outer peripheral surface of the second rear part 510a.

A first fixing groove 517 and a second fixing groove 518 may be formed on the outer surface of the second body 510 (see FIG. 20). The first fixing groove 517 and the second fixing groove 518 ) is spaced apart from the outer surface of the second body 510 in the front and rear directions in the first direction X2. When the first fixing groove 517 is a groove formed relatively forward in the first direction X2 , the second fixing groove 518 is a groove formed relatively rearward in the first direction X2 .

The first fixing groove 517 and the second fixing groove 518 may be formed in the second front part 510b.

A second opening 511 that is a through hole may be provided in the second body 510 . The second opening 511 may be formed in the second rear portion 510a.

The second opening 511 is formed in front of the second body 510 in the third direction Z2 . The second opening 511 may be formed at a position corresponding to the second lever 520 , and in particular may be formed at a position corresponding to the second locking protrusion 521 of the second lever 520 .

The second opening 511 is formed behind the second body 510 in the first direction X2 . The second opening 511 may be formed at the rear end of the second body 510 in the first direction X2 .

In an embodiment, the second body 510 and the first body 410 may be coupled to each other while the first body 410 is inserted into the second body 510 (as fitted). That is, the first body 410 is inserted into the second body 510 while moving in the first direction X2, so that the two can be combined.

The second body 510 and the first body 410 are tightly coupled to each other. That is, in a state in which the second body 510 and the first body 410 are coupled to each other, there is no flow between the second body 510 and the first body 410 in a direction perpendicular to the first direction X2. can

The second lever 520 includes a second locking protrusion 521 . In addition, the second lever 520 further includes a second rotation center portion 522 and a second button portion 523 . The second locking protrusion 521, the second rotation center portion 522 and the second button portion 523 may all be integrally formed.

The second lever 520 is rotatably coupled to the second body 510 based on the second lever shaft S5 (pivot). The second lever 520 may be coupled to the second body 510 from the front in the third direction Z2 . The second lever shaft S5 of the second lever 520 may be parallel to the second direction Y2 .

The second rotation center portion 522 forms a rotation shaft (second lever shaft S5) of the second lever 520 . The second rotation center portion 522 is located at a position farther from the cleaning main body 100 than the second locking protrusion portion 521 . The second rotation center portion 522 may be supported on one side of the second body 510 .

The second locking protrusion 521 protrudes in the inner direction of the second body 510 . That is, the second locking protrusion 521 protrudes in a direction opposite to the third direction Z2. The second locking protrusion 521 may protrude inwardly of the second body 510 through the second opening 511 . Depending on the degree of rotation of the second lever 520 with respect to the second body 510 , the second locking protrusion 521 may protrude more inward than the inner surface of the second body 510 , or the second The locking protrusion 521 may be located more outside than the inner surface of the second body 510 or located at the same position.

In a state in which the second lever 520 is rotated in the direction in which the second locking protrusion 521 faces the inside of the second body 510, the second locking protrusion 521 is inserted into the second locking groove 412. made to take

The second button part 523 may be formed on the opposite side of the second locking protrusion 521 with respect to the second rotation center part 522 . The second button part 523 is spaced apart from the outer surface of the second body 510 from the outside of the second body 510, and the user presses the second button part 523 to use the second rotation center part 522 as the rotation axis. The second lever 520 may be rotated (pivoted).

The second elastic body 530 may be made of various materials and structures that are elastically deformed, and may be formed in the form of a leaf spring, a torsion spring, or a coil spring.

The second elastic body 530 elastically supports the second lever 520 so that the second locking protrusion 521 protrudes to the inside of the second body 510 . The second elastic body 530 elastically supports the second lever 520 so that the second locking protrusion 521 is inserted into the second locking groove 412 .

A second elastic body coupling portion 524 may be formed on the second lever 520 . The second elastic body coupling portion 524 may be formed integrally with other components constituting the second lever 520 . The second elastic body coupling part 524 may be an inner surface of the second button part 523 .

When a separate external force does not act while the first body 410 is inserted into the second body 510 (when a separate external force does not act on the second button unit 523), the second elastic body 530 ), the state in which the second locking protrusion 521 is inserted into the second locking groove 412 is maintained. At this time, the fixed coupling (fastening) of the first tool assembly 400 (first body 410) and the second tool assembly 500 (second body 510) is maintained.

When the second lever 520 is rotated by pressing the second button unit 523 in a state in which the first body 410 is inserted into the second body 510, the second elastic body 530 is elastically deformed and the second The locking protrusion 521 is separated from the second locking groove 412 . Accordingly, the first body 410 (the first tool assembly 400 ) is in a state detachable from the second tool assembly 500 (the second body 510 ), and the user can use the second tool assembly 500 . The first body 410 may be separated by pulling it in a direction opposite to the first direction X2.

19A is a perspective view illustrating the cleaning main body 100, the first tool assembly 400, and the second tool assembly 500 are coupled to each other, and FIG. 15B is the brush cover 550 in FIG. 15A in the first direction. It is a perspective view showing the state moving to the rear of (X2).

20 is a view illustrating a part of the second body 510 of the second tool assembly 500 .

21A is a cross-sectional view illustrating the second tool assembly 500, and FIG. 21B is a cross-sectional view illustrating the brush cover 550 moving backward in the first direction X2 in FIG. 21A.

The second tool assembly 500 may include a brush 540 and a brush cover 550 .

The second tool assembly 500 may include a cover lever 554 .

The brush 540 includes a plurality of strands 541 . The strands 541 constituting the brush 540 may be made of or include fibers, hairs, plastics, or wires. Each strand 541 is formed generally along the first direction X2 (the longitudinal direction of the strand is parallel to the first direction X2).

The brush 540 may be fixedly coupled along the front edge of the second body 510 to protrude forward in the first direction X2 than the second body 510 . The brush 540 may be formed on a part or all of the front edge of the second body 510 in the first direction X2 . The brush 540 may be formed to have a predetermined pattern or to have a predetermined interval along the circumferential direction of the front edge of the second body 510 in the first direction X2 .

The brush cover 550 is formed in a pipe shape along the first direction. The brush cover 550 may form a second suction port 505 together with the second body 510 .

The brush cover 550 is movably coupled to the second body 510 in a first direction (X2) or a direction opposite to the first direction (X2).

When the brush cover 550 moves forward in the first direction X2 with respect to the second body 510 , the front end of the brush cover 550 in the first direction X2 is greater than the front end of the second body 510 . protrudes further forward. When the brush cover 550 moves as far forward in the first direction X2 as possible with respect to the second body 510 , the front end of the brush cover 550 in the first direction X2 is the same as the front end of the brush 540 . Or it can protrude further.

The brush cover 550 is configured to expose or shield the brush 540 fixed to the second body 510 . The brush cover 550 is configured to expose or shield the front of the brush 540 fixed to the second body 510 in the first direction X2.

When the brush cover 550 moves backward in the first direction X2 with respect to the second body 510 , the brush 540 is exposed. When the brush cover 550 moves to the rear in the first direction X2 with respect to the second body 510 as far as possible, the brush 540 is exposed to the maximum.

Hereinafter, when the brush cover 550 is moved as far forward in the first direction (X2) as possible with respect to the second body 510 and the brush 540 is in a state accommodated in the brush cover 550, the brush cover 550 The position of is referred to as a first position (see FIGS. 15A and 19A ), and the brush cover 550 moves to the rear of the first direction X2 with respect to the second body 510 as far as possible so that the brush 540 moves to the brush cover ( The position of the brush cover 550 is referred to as a second position when in the state exposed to the outside of the 550 (see FIGS. 15b and 19b).

The second tool assembly 500 constituting the second suction port 505 is used as a new nozzle other than the suction nozzle 300 , and the second tool assembly 500 may correspond to the third nozzle.

Since the third tool assembly 500 is coupled to the connection pipe 200 and/or the cleaning main body 100 , there is no fear of loss, and it is removed from the connection pipe 200 for use of nozzles other than the suction nozzle 300 . As soon as the second tool assembly 500 is separated, the second tool assembly 500 constituting the third nozzle can be used, thereby remarkably improving the usability.

In addition, when the brush cover 550 is moved to the rear in the first direction X2 to expose the brush 540, another type of nozzle can be formed, thereby further improving ease of use.

The brush cover 550 may be coupled to the second body 510 in a shape surrounding the second body 510 . To this end, the outer diameter of the brush cover 550 may be larger than the outer diameter of the second body 510 .

The brush cover 550 and the second body 510 are tightly coupled to each other. That is, in a state in which the brush cover 550 and the second body 510 are coupled, there may be no flow between the brush cover 550 and the second body 510 in a direction perpendicular to the first direction X2. .

The brush cover 550 may be coupled to the second front portion 510b of the second body 510 . When the brush cover 550 moves in the first direction X2 or the second direction Y2 with respect to the second body 510 , the second rear portion 510a may always be exposed.

The outer circumferential surface of the brush cover 550 may be substantially identical to or completely coincident with the outer circumferential surface of the second rear portion 510a of the second body 510 . That is, in a state in which the brush cover 550 and the second body 510 are coupled and the brush cover 550 is moved to the rear in the first direction X2 as much as possible, the outer surface of the brush cover 550 and the second rear It may be formed so that there is no step difference between the outer surfaces of the part 510a.

The brush cover 550 may include a plurality of brush accommodating spaces 550a partitioned from each other along the circumferential direction. The brush accommodating space 550a may be formed in the front portion of the brush cover 550 in the first direction X2.

The brush cover 550 may include an inner tube 551 , an outer tube 552 , and a plurality of partition walls 553 .

The inner tube 551 and the outer tube 552 are formed in a pipe shape along the first direction, respectively.

In a state in which the second body 510 and the brush cover 550 are coupled, the inner tube 551 is located inside the second body 510 and the outer tube 552 is located outside the second body 510 . can do. In this case, the inner tube 551 may contact the inner surface of the second body 510 , and the outer tube 552 may contact the outer surface of the second body 510 .

The inner tube 551 and the outer tube 552 may be formed such that front ends in the first direction X2 protrude to the same extent.

The outer tube 552 surrounds the inner tube 551 to be spaced apart from the inner tube 551 from the outside of the inner tube 551 .

The partition wall 553 connects the inner tube 551 and the outer tube 552 between the inner tube 551 and the outer tube 552 . The partition wall 553 is repeatedly formed along the circumferential direction of the brush cover 550 . Each of the partition walls 553 is spaced apart from each other.

The partition wall 553 may be formed in front of the inner tube 551 and the outer tube 552 in the first direction X2 .

A space surrounded by the inner tube 551 , the outer tube 552 , and the two partition walls 553 becomes the brush accommodation space 550a.

The cross-sectional area, volume, shape, etc. of each brush accommodating space 550a may be made constant along the circumferential direction of the brush cover 550 or may be made substantially constant.

A portion of the brush 540 is accommodated in each brush accommodating space 550a provided in the brush cover 550, respectively.

The cover lever 554 may be rotatably (pivotably) coupled to the brush cover 550 . The cover lever 554 may be rotatably coupled to the outer tube 552 of the brush cover 550 .

When an external force is applied to the cover lever 554 coupled to the brush cover 550, the cover lever 554 rotates against the brush cover 550, and when the applied external force is removed, the cover lever 554 returns to its original position. It can be made to rotate in reverse. To this end, the second tool assembly 500 may include an elastic means, and the brush cover 550 and the cover lever 554 may be connected to each other by the elastic means. That is, when an external force is applied to the cover lever 554 and the cover lever 554 rotates against the brush cover 550, the elastic means is elastically deformed to store the elastic force, and when the applied external force is removed, the elastic means is activated. While elastically recovering, the cover lever 554 may be reversely rotated to its original position.

In one embodiment, the cover lever 554 may be formed separately from the brush cover 550 and then pivotally coupled to the brush cover 550 . In this case, the separate elastic means for connecting the brush cover 550 and the cover lever 554 may be provided.

In another embodiment, the cover lever 554 may be formed integrally with the brush cover 550 . In this case, the cover lever 554 and the brush cover 550 may be connected by a pair of connecting bridges 554c. Also, at this time, the cover lever 554 , the brush cover 550 , and the connecting bridge 554c may be elastically deformable and may be made of a material such as plastic or metal. The connecting bridge 554c is made to be elastically deformable. The connecting bridge 554c forms the elastic means. The connecting bridge 554c forms a rotation axis of the cover lever 554 . A pair of connecting bridges 554c are respectively formed on opposite sides of the cover lever 554 and are connected to the brush cover 550 .

The cover lever 554 includes a fixing button 554a and a fixing protrusion 554b. The fixing button 554a and the fixing protrusion 554b are formed on opposite sides with respect to the rotation axis of the cover lever 554 (eg, the connecting bridge 554c).

The fixing protrusion 554b protrudes to the inside of the cover lever 554 and the inside of the brush cover 550 .

The fixing protrusion 554b includes the first fixing groove 517 or the second when the brush cover 550 moves in the first direction X2 or the opposite direction to the first direction X2 with respect to the second body 510. It is made to be inserted into the fixing groove (518).

When the brush cover 550 is in the first position, the fixing protrusion 554b is inserted and caught in the first fixing groove 517. At this time, if no external force is applied to the cover lever 554, the brush cover 550 is fixed in the first position.

When the brush cover 550 is in the second position, the fixing protrusion 554b is inserted and caught in the second fixing groove 518. At this time, if no external force is applied to the cover lever 554, the brush cover 550 is fixed in the second position.

When the user rotates the cover lever 554 by pressing the fixing button 554a, the fixing protrusion 554b is separated from the first fixing groove 517 or the second fixing groove 518 and the jamming can be released. At this time, the brush The cover 550 may move in the first direction X2 or in a direction opposite to the first direction X2 with respect to the second body 510 . Accordingly, the brush cover 550 can be adjusted to be in the first position or the second position.

On the other hand, in a state in which the user presses the fixing button 554a and the fixing protrusion 554b is released from the first fixing groove 517 or the second fixing groove 518 and the locking is released, the second body 510 is When the brush cover 550 is moved forward in the first direction X2 , the brush cover 550 may be completely separated from the second body 510 . Accordingly, it is possible to form the second tool assembly 500, which is easy to maintain.

The brush cover 550 may include a lever groove 555 .

The lever groove 555 is a hole penetrated inside and outside to expose the second lever 520 , and is formed to extend forward from the rear edge in the first direction X2 . The lever groove 555 may be formed to penetrate the outer tube 552 in and out.

The brush cover 550 may include a third locking groove 556 .

The third locking groove 556 is formed on the outer surface of the brush cover 550 . The third locking groove 556 may be formed in the form of a concave groove on the outer surface of the brush cover 550 , or may be formed in the form of a hole penetrating the brush cover 550 .

In one embodiment, the third locking groove 556 may be formed in front of the second tool assembly 500 (brush cover 550) in the third direction Z2. Therefore, when the central axis of the brush cover 550 is placed parallel to the bottom surface B, the third locking groove 556 can be said to be located on the upper side of the second tool assembly 500, and the brush cover 550. When the central axis of the bottom surface (B) is erected perpendicular to the third locking groove (556) can be said to be located in front of the second tool assembly (500).

The third locking groove 556 may be formed in the outer tube 552 of the brush cover 550 . The third locking groove 556 and the lever groove 555 may be connected to each other.

The third locking groove 556 may be formed on the outer surface of the brush cover 550 in front of the second lever 520 in the first direction X2.

22 is an exploded perspective view showing the pipe assembly 600 .

23A is a cross-sectional view illustrating a state in which the second tool button 670 is pressed so that the third lever 620 rotates, and FIG. 23B shows a state in which the second tool assembly 500 and the pipe assembly 600 are separated. It is one cross section.

24A is a cross-sectional view illustrating a state in which the first tool button 660 is pressed so that the second lever 520 rotates, and FIG. 24B is a second tool assembly 500 and the first tool fixed to the pipe assembly 600 . It is a cross-sectional view showing a state in which the assembly 400 is separated.

The pipe assembly 600 is fixedly coupled to the rear of the connection pipe 200 in the first direction X2. The pipe assembly 600 may be fixedly coupled to the second connection part 220 of the connection pipe 200 . The pipe assembly 600 may be removably fixed to the second tool assembly 500 .

The pipe assembly 600 may be detachably attached to the cleaning main body 100 . To this end, the first body coupling part 180 may be formed in the cleaning main body 100 , and the second body coupling part 680 may be formed in the pipe assembly 600 .

The first body coupling unit 180 may be formed directly below the body suction port 140 , and the second body coupling unit 680 may be formed at the rear side of the pipe assembly 600 in the first direction (X2). there is.

One of the first body coupling part 180 and the second body coupling part 680 may be formed in a protrusion shape, and the other may be formed in a groove shape into which the protrusion is inserted. In one embodiment, the first body coupling part 180 may be formed in a groove shape, and the second body coupling part 680 may be formed in a protrusion shape to fit snugly into the first body coupling part 180 . .

Since the first body coupling part 180 and the second body coupling part 680 are formed, the vacuum cleaner may have a more stable coupling structure as a whole.

On the other hand, the cleaning main body 100 and the suction nozzle 300 may be electrically connected to each other, in this case, the electrical connection between the cleaning main body 100 and the suction nozzle 300 is the first body coupling unit 180 and the second body It may be made through the coupling part 680 . In one embodiment, the first terminal is formed in the first body coupling portion 180, the second terminal is formed in the second body coupling portion 680, the first body coupling portion 180 and the second body coupling portion When the 680 is coupled to each other, while the first terminal and the second terminal are in contact with each other, an electrical connection between the cleaning main body 100 and the suction nozzle 300 may be made.

The pipe assembly 600 includes a third body 610 and a third lever 620 .

Also, the pipe assembly 600 includes a second button cover 650 , a first tool button 660 and a second tool button 670 .

The third body 610 is configured to be detachable from the second tool assembly 500 .

The third body 610 may be formed in a pipe shape along the first direction. The third body 610 may have a central axis direction parallel to the first direction X2 .

The first tool assembly 400 and the second tool assembly 500 may be inserted into the rear of the third body 610 in the first direction X2 .

A third opening 611 that is a through hole may be provided in the third body 610 .

The third opening 611 is formed in front of the third body 610 in the third direction Z2 . The third opening 611 may be formed at a position corresponding to the third lever 620 , and in particular, may be formed at a position corresponding to the third locking protrusion 621 of the third lever 620 .

A fourth opening 612 that is a through hole may be provided in the third body 610 .

The fourth opening 612 is formed in front of the third body 610 in the third direction Z2 . The fourth opening 612 may be formed at a position corresponding to the second lever 520 when the second tool assembly 500 and the pipe assembly 600 are coupled, and in particular, of the second lever 520 . It may be formed at a position corresponding to the second button unit 523 .

In the first direction X2 , the fourth opening 612 may be formed immediately behind the third opening 611 .

In an embodiment, the third body 610 and the second tool assembly 500 may be coupled to each other while the second tool assembly 500 is inserted (fitted) into the third body 610 . That is, the second tool assembly 500 is inserted into the third body 610 while moving in the first direction X2, so that the two can be combined.

In a state in which the second tool assembly 500 is inserted into the third body 610 of the pipe assembly 600, the third body 610 of the pipe assembly 600 has the first tool assembly 400 therein. All or most of may be accommodated. To this end, the length of the third body 610 in the first direction X2 may be longer than the length of the first body 410 and the length of the second body 510 .

The third body 610 and the second tool assembly 500 are tightly coupled to each other. That is, in a state in which the third body 610 and the second tool assembly 500 are coupled, the flow in the direction orthogonal to the first direction X2 between the third body 610 and the second tool assembly 500 is It can be done without

The second button cover 650 is fixedly coupled to the third body 610 from the outside of the third lever 620 .

A first button hole 651 and a second button hole 652 are formed in the second button cover 650 .

The first button hole 651 and the second button hole 652 are holes passing through the second button cover, respectively, and are spaced apart from each other in the first direction (X2). The first buttonhole 651 is formed at a relatively rear side in the first direction X2, and the second buttonhole 652 is formed at a relatively front side in the first direction X2.

The first tool button 660 is inserted into the first button hole 651 and is configured to move in a third direction or a direction opposite to the third direction.

The second tool button 670 is inserted into the second button hole 652 and is configured to move in a third direction or a direction opposite to the third direction.

The third lever 620 includes a third locking protrusion 621 . In addition, the third lever 620 further includes a third rotation center portion 622 and a third button portion 623 . The third locking protrusion 621, the third rotation center portion 622, and the third button portion 623 may all be integrally formed.

The third lever 620 is rotatably coupled to the third body 610 based on the third lever shaft S6 (pivot). The third lever 620 may be coupled to the third body 610 from the front in the third direction Z2 . The third lever shaft S6 of the third lever 620 may be parallel to the second direction Y2.

The third rotation center portion 622 forms a rotation shaft (third lever shaft S6) of the third lever 620 . The third rotation center portion 622 is located at a position closer to the cleaning main body 100 than the third locking protrusion 621 . The third rotation center portion 622 may be supported on one side of the third body 610 .

The third locking protrusion 621 protrudes in the inner direction of the third body 610 . That is, the third locking protrusion 621 has a shape that protrudes in a direction opposite to the third direction Z2. The third locking protrusion 621 may protrude inwardly of the third body 610 through the third opening 611 . Depending on the degree of rotation of the third lever 620 with respect to the third body 610 , the third locking protrusion 621 may protrude more inward than the inner surface of the third body 610 , or the third The locking protrusion 621 may be located more outside than the inner surface of the third body 610 or located at the same position.

In a state in which the third locking protrusion 621 protrudes more inward than the inner surface of the third body 610 , the third locking protrusion 621 is inserted into and caught in the third locking groove 556 .

The third button portion 623 may be formed on the opposite side of the third locking protrusion 621 with respect to the third rotation center portion 622 . The third button portion 623 extends from the third rotation center portion 622 and protrudes out of the third body 610 . The third button part 623 is spaced apart from the outer surface of the third body 610 from the outside of the third body 610 .

In a state in which the second button cover 650 and the second tool button 670 are coupled to the third body 610 , the third opening 611 and the third lever 620 are not exposed from the outside. And at this time, the third button part 623 is located just inside the second tool button 670 , and the inside of the second tool button 670 may contact the outside of the third button part 623 .

The user may press the third button part 623 by pressing the second tool button 670 inward, and accordingly, the third lever 620 is rotated (pivoted) with the third rotation center part 622 as the rotation axis. ) can be done.

The third elastic body 630 may be made of various materials and structures that are elastically deformed, and may be formed in the form of a leaf spring, a torsion spring, or a coil spring.

The third elastic body 630 elastically supports the third lever 620 so that the third locking protrusion 621 protrudes to the inside of the third body 610 . The third elastic body 630 elastically supports the third lever 620 so that the third locking protrusion 621 is inserted into the third locking groove 556 .

A third elastic body coupling portion 624 may be formed on the third lever 620 . The third elastic body coupling portion 624 may be formed integrally with other components constituting the third lever 620 . The third elastic body coupling part 624 forms a space to which the third elastic body 630 is coupled between the second tool button 670 and the second tool button 670 . The third elastic body coupling portion 624 may form a portion opposite to the third locking protrusion 621 . When the third locking protrusion 621 is a portion facing the inside of the third body 610 , the third elastic body coupling unit 624 may be a portion facing the outside of the third body 610 .

When a separate external force does not act in a state in which the brush cover 550 of the second tool assembly 500 is inserted into the third body 610 (the third button unit 623 does not have a separate external force applied) Case) The state in which the third locking protrusion 621 is inserted into the third locking groove 556 by the third elastic body 630 is maintained. At this time, the coupling (fastening) of the brush cover 550 (the second tool assembly 500) and the pipe assembly 600 (the third body 610) is maintained.

When the second tool assembly 500 is inserted into the third body 610 and the second tool button 670 is pressed to press the third button part 623 to rotate the third lever 620, the 3 The elastic body 630 is compressed and the third locking protrusion 621 is separated from the third locking groove 556 . Accordingly, the second tool assembly 500 (brush cover 550) is in a detachable state from the pipe assembly 600 (the third body 610), and the user removes the second tool assembly from the pipe assembly 600. (500) may be separated by pulling in the opposite direction to the first direction (X2).

In a state in which the second button cover 650 and the first tool button 660 are coupled to the third body 610 , the fourth opening 612 is not exposed from the outside. In a state in which the second tool assembly 500 and the pipe assembly 600 are coupled to each other, the second button part 523 is located just inside the first tool button 660 , and the The inner side may contact the outer side of the second button unit 523 .

A pressing protrusion 662 protruding inward may be formed inside the first tool button 660 . The pressing protrusion 662 of the first tool button 660 may be inserted into the fourth opening 612 to protrude into the third body 610 .

The user may press the second button part 523 by pressing the first tool button 660 inwardly, and accordingly, the pressing protrusion 662 presses the second button part 523, and the second rotation The second lever 520 may be rotated (pivoted) using the central portion 522 as a rotation axis.

The pipe assembly 600 may include a fourth elastic body 640 .

The fourth elastic body 640 may be made of various materials and structures that are elastically deformed, and may be formed in the form of a leaf spring, a torsion spring, or a coil spring.

The fourth elastic body 640 presses the first tool button 660 to the outside of the third body 610 . The fourth elastic body 640 may be interposed between the first tool button 660 and the third body 610 .

In this way, even in a state in which the second tool assembly 500 and the pipe assembly 600 are coupled to each other, the first tool button 660 is pressed to engage the first tool assembly 400 and the second tool assembly 500. can be released.

When the second tool assembly 500 is inserted into the third body 610 and the first tool button 660 is pressed to press the second button part 523 to rotate the

second lever

520, 2 The elastic body 530 is compressed and the second locking protrusion 521 is separated from the second locking groove 412 . Accordingly, the first tool assembly 400 (first body 410) is separated from the second tool assembly 500 (second body 510) and the pipe assembly 600 (third body 610). In this state, the user can separate the first tool assembly 400 from the pipe assembly 600 and the second tool assembly 500 coupled to each other in a direction opposite to the first direction X2.

A first mark 661 may be formed on an outer surface of the first tool button 660 , and a second mark 671 may be formed on an outer surface of the second tool button 670 .

The first mark 661 may be printed or engraved on the outer surface of the first tool button 660 , and the second mark 671 may be printed or engraved on the outer surface of the second tool button 670 . there is.

The first mark 661 may be formed in a shape, shape, etc. similar to or identical to that of the first suction port 405 so as to intuitively associate the first suction port 405 . The second mark 671 may have a shape, shape, etc. similar to or identical to that of the second suction port 505 so as to intuitively associate the second suction port 505 .

25A is a cross-sectional view showing the second tool assembly 500 and the pipe assembly 600, and FIG. 25B is a view showing the state when the brush cover 550 is moved backward in the first direction X2 in FIG. It is a cross section.

In the embodiment of the present invention, the brush cover 550 is moved forward in the first direction (X2) with respect to the second body 510 so that the brush cover 550 shields the brush 540 and is caught by the third The protrusion 621 may be caught in the third locking groove 556 . When the second tool assembly 500 is inserted into the third body 610 and the brush cover 550 is in the first position, the third locking protrusion 621 of the third lever 620 is the third locking part. It is inserted into the groove 556 and can be caught. That is, the pipe assembly 600 and the second tool assembly 500 are fastened.

In a state in which the brush cover 550 moves backward in the first direction X2 with respect to the second body 510 so that the brush cover 550 exposes the brush 540, the third locking protrusion 621 is 3 It may be made to contact the outer surface of the brush cover 550 in front of the locking groove 556 . When the second tool assembly 500 is inserted into the third body 610 and the brush cover 550 is in the second position, the third locking protrusion 621 of the third lever 620 is the third locking part. It is not caught in the groove 556 and is located in front of the third locking groove 556 in the first direction X2. That is, the pipe assembly 600 and the second tool assembly 500 are not completely coupled. In this state, when the second tool assembly 500 is moved backward in the first direction X2 relative to the pipe assembly 600, the pipe assembly 600 and the second tool assembly 500 are separated from each other.

When the second tool assembly 500 is inserted into the third body 610 when the brush cover 550 is in the second position, the brush 540 of the second tool assembly 500 moves to the third body 610 . ) may come into contact with the inner circumferential surface, and if the second tool assembly 500 and the pipe assembly 600 are combined in this state, the coupling may not be performed properly, and bending deformation of the brush 540 may occur. In the embodiment of the present invention, in order to prevent such a problem from occurring, the coupling between the second tool assembly 500 and the pipe assembly 600 can be completed when the brush cover 550 is in the first position.

26A is a perspective view illustrating a state in which the first tool assembly 400 and the second tool assembly 500 are separated according to an embodiment, and FIG. 26B is the second tool assembly 500 of FIG. 26A from a different direction. 26C and 26D are perspective views illustrating a state in which the first tool assembly 400 and the second tool assembly 500 of FIG. 26A are combined, viewed from different directions.

On the inner surface of the second tool assembly 500, a first guide 513 and a second guide 514 for guiding the first rotation body 450 and the second rotation body 460 to spread apart from each other are formed. can

In an embodiment, the first guide and the second guide may be formed on the inner surface of the second body 510 of the second tool assembly 500 . In another embodiment, when the brush cover 550 is provided, the first guide 513 and the second guide 514 may be formed on the inner surface of the brush cover 550 .

The first guide 513 and the second guide 514 are respectively formed on opposite sides of the inner surface of the second tool assembly 500 . On the inner surface of the second tool assembly 500 , when the first guide 513 is formed at the upper side, the second guide 514 may be formed at the lower side. On the inner surface of the second tool assembly 500, when the first guide 513 is formed in the front relative to the third direction Z2, the second guide 514 is located in the rear relative to the third direction Z2. can be formed.

The first guide 513 and the second guide 514 each protrude inward from the inner surface of the second tool assembly 500 . In addition, the first guide 513 and the second guide 514 may each be formed in a wedge shape that is pointed in a direction opposite to the first direction X2.

When the first tool assembly 400 and the second tool assembly 500 are coupled, the first guide 513 enters between the first edge 451a and the third edge 461a and the first edge 451a. and the third corner 461a are spaced apart from each other, and the second guide 514 enters between the second corner 451b and the fourth corner 461b while entering the second corner 451b and the fourth corner 461b. make them spread apart from each other.

The first guide 513 and the second guide 514 allow the first half tube 451 and the second half tube 461 to spread apart from each other and remain in close contact with the inner surface of the second tool assembly 500 .

In the foregoing, specific embodiments of the present invention have been described and illustrated, but the present invention is not limited to the described embodiments, and those of ordinary skill in the art may make various changes to other specific embodiments without departing from the spirit and scope of the present invention. It will be appreciated that modifications and variations are possible. Accordingly, the scope of the present invention should not be defined by the described embodiments, but should be defined by the technical idea described in the claims.

A vacuum cleaner according to an embodiment of the present invention includes a first tool assembly, a second tool assembly, and a pipe assembly. The first tool assembly, the second tool assembly, or the pipe assembly can be selectively separated from the cleaning main body, and industrial applicability is remarkable in that each tool (suction port) is effectively used.

Claims

A cleaning main body generating a suction force to the main body suction port, a suction nozzle having a basic suction port to introduce dust, and a vacuum cleaner positioned between the cleaning main body and the suction nozzle so that the suction force is transmitted to the basic suction port, the suction at the main body suction port As a vacuum cleaner comprising a connecting pipe extending along a first direction toward the nozzle,

a first tool assembly having a first suction port communicating with the main body suction port and being detachably fixed to the main body suction port;

a second tool assembly having a second suction port communicating with the main body suction port and being detachably fixed to the first tool assembly; and

Further comprising a pipe assembly fixed to the rear of the connecting pipe in the first direction and removably fixed to the second tool assembly,

Vacuum cleaner.
The method of claim 1,

The first tool assembly,

a first body formed in a pipe shape along the first direction and coaxially coupled to the main body inlet;

a first lever pivotally coupled to the first body and configured to be caught or released from the main body inlet;

a first rotating body pivotally coupled to a first rotational axis in the front portion of the first body in the first direction and including a first semi-pipe forming a part of the first suction port; and

A second rotating body including a second semi-pipe that is pivotally coupled to a front portion of the first body in the first direction about a second axis of rotation parallel to the first axis of rotation, and forms a part of the first suction port; containing,

Vacuum cleaner.
3. The method of claim 2,

The first tool assembly,

A first rotational spring for elastically supporting the first rotational body and a second rotational spring for elastically supporting the second rotational body so that the first half tube and the second half tube form the first suction port,

The first rotating body includes a first pressing part extending to the other side from the first semi-pipe with respect to the first rotating shaft and protruding to the outside of the first body,

The second rotating body includes a second pressing part extending to the other side from the second semi-pipe with respect to the second rotating shaft and protruding to the outside of the first body,

The second tool assembly is formed in the form of a pipe in the first direction, the front edge of the first direction forms the second suction port, and when coupled to the first tool assembly, the first semi-pipe and the second tool assembly Containing a second body made to press the first pressing part and the second pressing part so that the two half tubes are spread apart from each other,

Vacuum cleaner.
The method of claim 1,

The second tool assembly,

a second body formed in a pipe shape along the first direction, the front edge of the first direction forming the second suction port;

a second lever pivotably coupled to the second body and configured to engage or release the first tool assembly; and

Comprising a brush coupled to the front edge of the second body to protrude forward in the first direction than the second body,

Vacuum cleaner.
5. The method of claim 4,

The second tool assembly,

A brush cover formed in a pipe shape along the first direction and movably coupled to the second body in the first direction or in a direction opposite to the first direction to expose or shield the brush;

Vacuum cleaner.
The method of claim 1,

The second tool assembly,

a second body formed in a pipe shape along the first direction, the front edge of the first direction forming the second suction port;

a second lever pivotably coupled to the second body and configured to engage or release the first tool assembly;

A plurality of brush accommodating spaces formed in a pipe shape along the first direction and partitioned from each other along the circumferential direction are provided and are movably coupled to the second body in the first direction or in a direction opposite to the first direction. brush cover; and

It is fixed along the front edge of the second body so as to protrude forward in the first direction than the second body, and is accommodated in each of the brush accommodating spaces. Containing a brush made to protrude,

Vacuum cleaner.
7. The method of claim 6,

The brush cover,

A hole penetrated inside and outside to expose the second lever, comprising a lever groove extending forward from the rear edge in the first direction,

Vacuum cleaner.
3. The method of claim 2,

The second tool assembly,

It is made in the form of a pipe along the first direction, the front edge of the first direction forms the second suction port, and is coaxially coupled to the first body to accommodate the first rotating body and the second rotating body a second body;

a second lever pivotally coupled to the second body and configured to be latched or released from the first body; and

Comprising a brush fixed along the front edge of the second body so as to protrude forward in the first direction than the second body,

Vacuum cleaner.
The method of claim 1,

The pipe assembly,

a third body formed in a pipe shape along the first direction, fixed to a rear side of the connection pipe in the first direction, and accommodating the second tool assembly; and

a third lever pivotally coupled to the third body and configured to engage or disengage from the second tool assembly;

Vacuum cleaner.
10. The method of claim 9,

The second tool assembly,

a second body formed in a pipe shape along the first direction, the front edge of the first direction forming the second suction port;

a second lever pivotally coupled to the second body and configured to engage or disengage from the first tool assembly; and

and a brush coupled to the front portion of the second body in the first direction,

The pipe assembly,

a first tool button coupled to the third body reciprocally in a direction perpendicular to the first direction and configured to rotate the second lever in a direction in which the second lever is disengaged; and

A second tool button coupled to the third body to be reciprocally movable in a direction perpendicular to the first direction, and configured to rotate the third lever in a direction in which the third lever is disengaged,

Vacuum cleaner.
The method of claim 1,

The main body suction port is made in the form of a pipe along the first direction, a first locking groove is formed on the outer surface,

The first tool assembly,

a first body in the form of a pipe along the first direction, the body suction port being fitted into the rear inside of the first direction;

A first pivotally coupled to the first body based on a first lever shaft in a second direction orthogonal to the first direction, protruding inside the first body to be inserted into and caught in the first locking groove a first lever on which a locking protrusion is formed;

a first elastic body elastically supporting the first lever so that the first locking protrusion protrudes into the first body;

The first body is pivotably coupled about a first rotational axis in a third direction orthogonal to the first direction and the second direction from the front of the first body in the first direction, and forms a part of the first suction port. A first rotating body including a semi-tube; and

A second rotating body including a second semi-pipe which is pivotally coupled about a second axis of rotation parallel to the first axis of rotation at the front of the first body in the first direction, and which forms a part of the first suction port; containing,

Vacuum cleaner.
The method of claim 1,

The first tool assembly,

It is made in the form of a pipe along the first direction, is coupled coaxially to the main body suction port, and includes a first body having a second locking groove formed on an outer surface thereof,

The second tool assembly,

a second body formed in a pipe shape along the first direction, the front edge of the first direction forming the second suction port, and the first body being fitted into the rear inside;

a second pivotally coupled to the second body with respect to a second lever shaft in a second direction perpendicular to the first direction, protruding inward of the second body to be inserted into and caught in the second locking groove a second lever formed with a locking protrusion;

a second elastic body elastically supporting the second lever so that the second locking protrusion protrudes into the second body;

a brush fixedly coupled to the front edge of the second body so as to protrude forward in the first direction than the second body; and

It is made in the form of a pipe along the first direction, is formed in the third locking groove on the outer surface, and moves in the first direction or in the opposite direction to the first direction on the second body to expose or shield the brush. It includes a brush cover that is possibly coupled,

The pipe assembly,

a third body formed in the form of a pipe along the first direction, fixed to a rear side of the connecting pipe in the first direction, and into which the first tool assembly and the second tool assembly are fitted;

A third locking protrusion that is pivotably coupled to the third body based on the third lever shaft in the second direction, protrudes inside the third body and is inserted into and caught in the third locking groove, is formed. 3 lever; and

Comprising a third elastic body for elastically supporting the third lever so that the third locking protrusion protrudes into the third body,

Vacuum cleaner.
13. The method of claim 12,

In a state in which the brush cover moves forward in the first direction with respect to the second body so that the brush cover shields the brush, the third locking protrusion is caught in the third locking groove,

In a state in which the brush cover is moved backward in the first direction with respect to the second body so that the brush cover exposes the brush, the third locking protrusion is an outer surface of the brush cover in front of the third locking groove. made to reach

Vacuum cleaner.
The method of claim 1,

The second tool assembly,

The first fixing groove and the second fixing groove are formed in a pipe shape along the first direction and spaced apart from each other in the first direction on the outer surface, and the front edge of the first direction forms the second suction port. a second body;

a second lever pivotably coupled to the second body and configured to engage or release the first tool assembly;

a brush coupled to a front edge of the second body to protrude forward in the first direction than to the second body;

a brush cover formed in a pipe shape along the first direction and movably coupled to the second body in the first direction or in a direction opposite to the first direction to expose or shield the brush; and

and a cover lever pivotably coupled to the brush cover and having a fixing protrusion formed to be inserted into and caught in the first fixing groove or the second fixing groove,

Vacuum cleaner.
A cleaning main body generating a suction force in the main body suction port, a suction nozzle provided with a basic suction port through which dust is introduced, and a first direction extending from the main body suction port toward the suction nozzle so that the suction force is transmitted to the basic suction port As a vacuum cleaner comprising a connection pipe coupled between the cleaning main body and the suction nozzle,

A first body formed in a pipe shape along the first direction and coaxially coupled to the main body suction port, a first lever pivotably coupled to the first body and configured to be caught or released from the body suction port, symmetrical to each other and the a first tool assembly pivotally coupled to a front portion of a first body in the first direction, respectively, and including a first rotating body and a second rotating body forming a first suction port;

A second body formed in the form of a pipe along the first direction, a front edge of the first direction forms a second suction port, and is coaxially coupled to the first body to accommodate the first rotating body and the second rotating body. , a second tool assembly including a second lever pivotably coupled to the second body and configured to be caught or released from the first body, and a brush coupled to a front edge of the second body in the first direction. ; and

A third body formed in the form of a pipe along the first direction and fixed to the rear side of the first direction of the connection pipe and coaxially coupled to the second body to receive the second body, pivoting on the third body A third lever coupled to the second body to be latched or released from the second body, a first tool button for rotating the second lever to release the second lever, and the third lever to unlock the third lever 3 Further comprising a pipe assembly comprising a second tool button for rotating the lever,

Vacuum cleaner.
16. The method of claim 15,

The first rotating body,

a first semi-pipe which is pivotably coupled with respect to a first rotational axis at a front portion of the first body in the first direction and forms a part of the first suction port; and

and a first pressing part extending to the other side from the first semi-pipe with respect to the first rotational axis and protruding to the outside of the first body,

The second rotating body,

a second semi-pipe which is pivotably coupled with respect to a second axis of rotation parallel to the first axis of rotation at a front portion of the first body in the first direction, and forms a part of the first inlet; and

and a second pressing part extending to the other side from the second half tube with respect to the second rotation axis and protruding to the outside of the first body,

The second body is configured to press the first pressing part and the second pressing part so that the first half tube and the second half tube are spread apart from each other when coupled to the first body,

Vacuum cleaner.
16. The method of claim 15,

The second tool assembly,

A brush cover formed in a pipe shape along the first direction and movably coupled to the second body in the first direction or in a direction opposite to the first direction to expose or shield the brush;

Vacuum cleaner.
16. The method of claim 15,

The second tool assembly,

A plurality of brush accommodating spaces formed in a pipe shape along the first direction and partitioned from each other along a circumferential direction to accommodate a portion of the brush, respectively, are provided in the second body in the first direction or the first direction Including a brush cover that is movably coupled in the opposite direction of

Vacuum cleaner.
18. The method of claim 17,

The main body suction port is made in the form of a pipe along the first direction, and includes a first locking groove formed on the outer surface,

The first body includes a second locking groove formed on the front outer surface of the first lever than the first lever,

The first lever is pivotally coupled to the first body based on a first lever shaft in a second direction perpendicular to the first direction, protrudes inward of the first body and is inserted into the first locking groove Including a first locking protrusion made to be caught,

The first tool assembly includes a first elastic body that elastically supports the first lever so that the first locking protrusion protrudes into the first body,

The second lever is pivotably coupled to the second body with respect to a second lever shaft in the second direction, protrudes inward of the second body, and is inserted into and caught in the second locking groove. including a locking protrusion,

The second tool assembly includes a second elastic body that elastically supports the second lever so that the second locking protrusion protrudes into the second body,

The brush cover includes a third locking groove formed on an outer surface in front of the second lever in the first direction,

The third lever is pivotally coupled to the third body with respect to a third lever shaft in the second direction, protrudes inward of the third body, and is inserted into and caught in the third locking groove. including a locking protrusion,

The pipe assembly includes a third elastic body that elastically supports the third lever so that the third locking protrusion protrudes into the third body,

Vacuum cleaner.
18. The method of claim 17,

The second body includes a first fixing groove and a second fixing groove formed to be spaced apart in the front and rear in the first direction on the outer surface,

The second tool assembly,

and a cover lever pivotably coupled to the brush cover and having a fixing protrusion formed to be inserted into and caught in the first fixing groove or the second fixing groove,

Vacuum cleaner.