CN216602698U - Vacuum cleaner with a vacuum cleaner head - Google Patents

Abstract

The present invention provides a vacuum cleaner, the vacuum cleaner of an embodiment of the present invention includes: a cleaner body generating suction at a suction port of the body; a suction nozzle having a basic suction port into which dust flows; and a connection pipe located between the cleaner body and the suction nozzle to transmit the suction force to the basic suction port, extending from the body suction port in a first direction as a direction toward the suction nozzle, the vacuum cleaner further comprising: a first tool assembly having a first suction port communicating with the main body suction port and 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 detachably fixed to the first tool assembly; and a pipe assembly fixed to a rear side of the connection pipe in the first direction and detachably fixed to the second tool assembly.

Description

Vacuum cleaner with a vacuum cleaner head

Technical Field

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having a plurality of suction ports different from each other.

Background

A vacuum cleaner is a device that uses a pressure difference of air to suck dust and the like into the interior of the vacuum cleaner.

The vacuum cleaner comprises a cleaner body and a suction nozzle. A motor is provided inside the cleaner body, and such a motor can generate suction force by rotation. The suction force generated inside the cleaner body can be transmitted to the suction nozzle, and external dust, etc. can be sucked into the vacuum cleaner through the suction nozzle.

Vacuum cleaners can be classified into a horizontal type, a vertical type, a hand/stick type, etc. according to their forms.

In the horizontal type cleaner, a cleaner body with wheels and a suction nozzle are separately provided, respectively, and the cleaner body and the suction nozzle are connected by a hose.

In the vertical type dust collector, a dust collector body and a suction nozzle are combined together on a push rod.

In a hand/wand type cleaner, a handle is provided at a cleaner body so that a user can hold a portion of the cleaner body and use it. In a hand-held cleaner, a cleaner body and a suction nozzle are arranged relatively close to each other, and in a stick-type cleaner, the cleaner body and the suction nozzle are arranged relatively far from each other.

In addition, a vacuum cleaner is a robot cleaner, and the robot cleaner uses a plurality of sensors to automatically move and suck dust and the like.

The vacuum cleaner includes a plurality of suction nozzles. In this case, the nozzles may be configured in different forms. For example, one nozzle may be configured to have a left and right elongated suction port suitable for cleaning a normal floor surface, the other nozzle may be configured to have a suction port with a narrow width suitable for cleaning a narrow gap, and the other nozzle may be configured to incorporate a brush to shake off dust.

In connection with such a vacuum cleaner, a vacuum cleaner is disclosed in korean patent laid-open No. 1841455 (hereinafter, "prior document 1"), and it is described that a plurality of suction nozzles different from each other can be used alternatively. Further, in the prior art document 1, a rack is disclosed which can store unused nozzles, thereby eliminating inconvenience in storing unused nozzles and preventing loss thereof.

In relation to a vacuum cleaner, japanese patent No. 3545628 (hereinafter, "prior document 2") discloses an electric vacuum cleaner in which an auxiliary suction body composed of an inner tube, a nozzle body, a brush body, and a tube cover is disclosed.

As described above, the related art has a plurality of suction nozzles (suction ports) different from each other in order to conveniently use the vacuum cleaner, but improvement is still required in order to improve convenience of use and utilization rate of the suction nozzles.

In the case of the prior document 1, the plurality of suction nozzles are individually provided, and it is necessary to individually separate and couple the suction nozzles to the cleaner body for use.

In the case of the prior document 2, when the extension pipe is separated from the auxiliary suction body, the suction nozzle body or the brush body can be used, but the suction nozzle body cannot be used immediately, and the suction nozzle body needs to be moved forward in order to use the suction nozzle body. That is, in a state where the user holds the handle with one hand and holds the extension pipe with the other hand and separates the extension pipe, the user cannot use the nozzle body immediately, and the user needs to move the nozzle body to the front side with the hand holding the extension pipe.

In the case of the prior document 2, when the nozzle body is moved to the front side of the brush body in order to use the nozzle body, the brush body is coupled to the periphery of the nozzle body, and thus the use of the nozzle body may be hindered by the brush body. In the case of a nozzle body, which is generally used for cleaning a relatively narrow gap or the like, the brush body of the prior document 2 may prevent the nozzle body from entering the relatively narrow gap.

SUMMERY OF THE UTILITY MODEL

The present invention describes a vacuum cleaner in which a suction nozzle having a basic suction port and a cleaner body are connected by a connection pipe, the vacuum cleaner having a structure and a unit capable of selectively using suction ports different from each other at once when the connection pipe is separated from the cleaner body.

A vacuum cleaner having a structure and a unit capable of effectively realizing the use of a unit constituting a crevice tool (crevice tool) when a connecting pipe is separated from a cleaner body.

A vacuum cleaner having a structure and a unit capable of preventing a passage for dust from being reduced when a connection pipe is coupled to a cleaner body and a plurality of suction ports are received inside a pipe extending from the connection pipe.

A vacuum cleaner having a structure and a unit that effectively enables the use of a brush and a suction port in a state where a connection pipe is separated from a cleaner body, and that can align the brush and effectively remove dust, hair, etc. adhered to the brush when the brush is not used.

A vacuum cleaner having a structure and a unit capable of completely cutting off the exposure of a brush in a state where a connection pipe is coupled to a cleaner body and preventing the brush from being exposed when the connection pipe is coupled to the cleaner body is described.

According to one aspect of the subject matter described in the present invention, a vacuum cleaner is constituted by a cleaner body, a connection pipe connected to the cleaner body, and a suction nozzle combined with the connection pipe.

The connection pipe extends from the body suction port in a first direction that is a direction toward the suction nozzle.

The cleaner body is provided therein with a first motor that generates suction force by rotating, and a body suction port is provided in front of the cleaner body in a first direction. The suction force generated in the cleaner body is transmitted to the body suction inlet and can be sequentially transmitted to the connecting pipe and the suction nozzle.

The body suction inlet may constitute an inlet of the cleaner body through which external dust, air, etc. flow into the cleaner body. The body suction port may be configured in a tube shape along the first direction.

A first locking groove may be formed on an outer side surface of the body suction port.

The suction nozzle is provided with a basic suction port into which external air, dust, or the like flows. The suction force in the cleaner body is transmitted to the basic suction port through the connection pipe. That is, the connection pipe is located between the cleaner body and the suction nozzle.

In some embodiments, the connection pipe is provided with a first connection portion constituting an inlet and a second connection portion constituting an outlet.

The cleaner body is connected to the second connection portion side.

The suction nozzle is combined at the first connection part side. The suction nozzle may be detachably coupled to the first coupling portion.

In accordance with one aspect of the subject matter described in this disclosure, a vacuum cleaner is constructed comprising a first tool assembly, a second tool assembly, and a tube assembly.

The first tool assembly has a first suction port communicating with the main body suction port, and is detachably fixed to the main body suction port.

The first suction port may constitute an inlet of the first tool assembly into which external dust, air, or the like flows. The first suction port may be formed in a tube shape along the first direction.

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

The second suction port may constitute an inlet of the second tool assembly into which external dust, air, and the like flow. The second suction port may be configured in a tube shape along the first direction.

The tube assembly may be fixed to a rear side of the connection tube in the first direction. The tube assembly may be detachably fixed to the second tool assembly.

According to one aspect of the subject matter described in the present disclosure, the first tool assembly is constituted by a first body, a first lever, a first rotating body, and a second rotating body.

The first tool assembly includes a first elastic body.

The first body may be configured in a tube shape along the first direction, and may be coaxially coupled to the body suction port.

The body suction port may be sandwiched in the rear side 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 an outer side surface of the first body.

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

The first lever may be pivotably (pivot) coupled to the first body. The first lever may be locked to or unlocked from the body suction port.

The first lever may be pivotably coupled to the first body with reference to a first lever axis in a second direction orthogonal to the first direction. The first lever includes a first engaging protrusion. The first locking protrusion protrudes toward the inside of the first body, and is inserted into the first locking groove and locked.

The first elastic body elastically supports the first lever so that the first locking protrusion protrudes toward the inside of the first body.

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

The first rotating body may be pivotally coupled to a front portion of the first body in the first direction about a first rotation axis. The first rotating body includes a first half pipe constituting a part of the first suction port.

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

The second rotating body may be pivotally 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 includes a second half pipe constituting a part of the first suction port.

The rotation direction of the first rotating body and the rotation direction of the second rotating body may be configured to be opposite to each other.

The first tool assembly includes a first rotary spring and a second rotary spring.

The first rotating spring elastically supports the first rotating body such that the first half pipe constitutes the first suction port.

The second rotating spring elastically supports the second rotating body such that the second half pipe constitutes the first suction port.

In some embodiments, the first rotating body includes a first pressing portion, and the second rotating body includes a second pressing portion.

The first pressing portion extends to a side different from the first half pipe with reference to the first rotating shaft and protrudes to the outside of the first body.

The second pressing portion extends to a side different from the second half pipe with reference to the second rotation shaft and protrudes to the outside of the first body.

The second tool assembly includes a second body.

The second body is configured in a tube shape along the first direction. The first-direction front side frame of the second body may constitute the second suction port.

The second body may be coaxially coupled to the first body in such a manner as to accommodate the first rotating body and the second rotating body.

When the second body is coupled to the first tool assembly, the second body may press the first pressing part and the second pressing part to open the first half pipe and the second half pipe from each other.

The first body may be sandwiched inside a rear side of the second body in the first direction.

The second body may have a first fixing groove and a second fixing groove formed therein. The first fixing groove and the second fixing groove are spaced apart from each other in the front-rear direction of the outer side of the second body facing the first direction.

In some embodiments, the second tool assembly includes a second rod and a brush.

The second tool assembly includes a cover rod.

The second lever is pivotably coupled to the second body.

The second lever is locked to the first tool assembly or unlocked. The second lever may be locked to or unlocked from the first body.

The second lever may be pivotably coupled to the second body with reference to a second lever axis in the second direction. The second lever includes a second locking protrusion. The second locking protrusion protrudes toward the inside of the second body, and is inserted into the second locking groove and locked.

The second tool assembly includes a second elastic body. The second elastic body elastically supports the second lever so that the second locking projection projects toward the inside of the second body.

The brush may be coupled along a front side frame of the second body in such a manner as to protrude further toward a front side of the first direction than the second body.

In some embodiments, the second tool assembly includes a brush cover.

The brush cover is configured in a tube shape along the first direction. The brush cover is coupled to the second body so as to be movable in the first direction or a direction opposite to the first direction.

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

The brush cover exposes or shields the brush.

The brush cover may be provided with a plurality of brush accommodating spaces partitioned from each other along a front side frame thereof.

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

The outer tube surrounds the inner tube outside the inner tube in a spaced apart relationship from the inner tube. The bulkhead connects the inner tube and the outer tube between the inner tube and the outer tube. The partition walls are spaced apart from each other and repeatedly formed along a front side frame of the brush cover. A space surrounded by the inner tube, the outer tube, and the two partition walls becomes the brush accommodating space.

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

The brushes may be accommodated in the respective brush accommodating spaces, and when the brush cover moves to the rear side, the brushes protrude to the front side of the brush cover.

The brush cover comprises a rod groove.

The rod groove is a hole that penetrates inward and outward to expose the second rod, and the rod groove is configured to extend forward from a rear side angle in the first direction.

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

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

In some embodiments, the tube assembly includes a third body and a third rod.

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

The first tool assembly and the second tool assembly may be inserted into a rear side of the third body.

The third lever is pivotably coupled to the third body.

The third lever may be locked to or unlocked from the second tool assembly.

The third lever may be pivotably coupled to the third body with reference to a third lever axis in the second direction. The third lever includes a third locking projection. The third catching protrusion protrudes toward an inner side of the third body so as to be inserted into the third catching groove and branch off.

The tube assembly includes a third elastic body. The third elastic body elastically supports the third lever so that the third locking projection projects toward the inside of the third body.

The third locking protrusion may be locked to the third locking groove in a state where the brush cover is moved forward in the first direction with respect to the second body such that the brush cover shields the brush.

The third locking protrusion may contact an outer side surface of the brush cover in front of the third locking groove in a state where the brush cover is moved to a rear side in the first direction with respect to the second body such that the brush cover is exposed from the brush.

The pipe assembly comprises a first tool button and a second tool button.

The first tool button may be coupled to the third body so as to be capable of reciprocating in a direction orthogonal to the first direction. The first tool button may rotate the second lever in a direction in which the second lever is released from the locking.

The second tool button may be coupled to the third body so as to be capable of reciprocating in a direction orthogonal to the first direction. The second tool button may rotate the third lever in a direction in which the locking is released.

As described above, the vacuum cleaner includes the first tool assembly, the second tool assembly, and the pipe assembly. A first tool assembly having a first suction port is detachably fixed to a main body suction port of a cleaner body, a second tool assembly having a second suction port is detachably fixed to the first tool assembly, and a pipe assembly is fixed to a rear side of a connection pipe and detachably fixed to the second tool assembly. When the connection pipe is separated from the cleaner 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. This enables the first suction port or the second suction port to be selectively used immediately.

In the embodiment of the present invention, in a state where the user holds the cleaner body with one hand and the pipe assembly with the other hand, the first tool assembly and the second tool assembly can be separated from each other, in which case immediate use of the first tool assembly is achieved. Further, in the embodiment of the present invention, in a state where the user holds the cleaner body with one hand and the pipe assembly with the other hand, the second tool assembly and the pipe assembly can be separated from each other, in which case immediate use of the second tool assembly is achieved. That is, the first tool assembly can be brought into a usable state by only one operation, and the second tool assembly can be brought into a usable state by only one operation.

In some embodiments, 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 comprises a first half-pipe and the second rotating body comprises a second half-pipe. When the second tool assembly is separated from the first tool assembly in a state where the second tool assembly is fixed to the tube assembly, the first half tube and the second half tube rotate to the side close to each other and constitute the first suction port. The first rotating body and the second rotating body can constitute a crevice tool (crevice tool or crevice nozzle), and can be effectively used for cleaning a relatively narrow crevice.

In some embodiments, the first rotating body includes a first pressing portion, and the second rotating body includes a second pressing portion. When the second body is combined with the first tool assembly, the second body presses the first pressing part and the second pressing part by utilizing the inner side surface of the second body, and the first pressing part and the second pressing part are rotated to enable the first half pipe and the second half pipe to be mutually opened. In the embodiment of the present invention, even if there is no unit for expanding the first half pipe and the second half pipe from each other inside the first half pipe and the second half pipe, the first half pipe and the second half pipe can be effectively expanded, and a passage having a sectional area of a sufficient size for dust to move can be provided inside the first tool assembly.

In some embodiments, a brush housing space is provided in the brush cover. The brush containing space is composed of an inner tube, an outer tube and a plurality of partition walls of the brush cover. The brush accommodating space is repeatedly formed along the front side frame of the brush cover. When the brush is not used, the brush cover moves to the front side with respect to the second body, whereby the respective strips of the brush are inserted into the respective brush accommodating spaces. Thereby, the respective strips constituting the brush can be aligned straight along the first direction, and bending, deformation, and the like of the brush as a whole can be prevented. When the brush is accommodated in the brush accommodating space, dust, hair, etc. adhered to the brush are caught by the inner tube, the outer tube, and the partition wall of the brush cover constituting the brush accommodating space, so that the dust, hair, etc. can be effectively removed.

In some embodiments, the third locking protrusion is locked to the third locking groove in a state where the brush cover is moved forward in the first direction with respect to the second body so as to shield the brush. Further, the third locking projection contacts the outer side surface of the brush cover in front of the third locking groove in a state where the brush cover is moved rearward in the first direction with respect to the second body such that the brush cover is exposed from the brush. As described above, the second tool assembly and the pipe assembly can be coupled and fixed in a state where the brush cover is moved to the front side of the second body. Thus, the brush can be completely cut off in a state that the connecting pipe is fixedly connected with the dust collector body, and the situation that dust, hair and the like adhered or stuck on the brush are adhered to the hand of a user can be prevented.

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 respectively constitute other suction ports than the basic suction port of the suction nozzle. That is, the first tool assembly and the second tool assembly may constitute a suction nozzle different from the suction nozzle, and may be used as an accessory of the vacuum cleaner. A part of the first body of the first tool assembly is inserted into the second body of the second tool assembly and coupled thereto, and the first tool assembly and the second tool assembly are coupled to a pipe assembly inserted into the third body. In a state where the suction nozzle, the connection pipe, the pipe assembly, the second tool assembly, the first tool assembly, and the cleaner body are coupled to each other, since the first tool assembly and the second tool assembly constituting the other suction nozzle (fitting) than the suction nozzle are inserted into the pipe assembly, the first tool assembly and the second tool assembly can be stored easily, and the first tool assembly or the second tool assembly can be used immediately when the first tool assembly or the second tool assembly needs to be used.

Drawings

Fig. 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 that of fig. 1, and fig. 2B is a view illustrating a vacuum cleaner according to an embodiment different from that of fig. 1 and 2A.

Fig. 3 is a sectional view schematically showing the cleaner body.

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

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

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

Fig. 7 is a sectional view showing a state where the cleaner body, the first tool assembly, the second tool assembly, and the pipe assembly are coupled to each other.

Fig. 8 is a perspective view illustrating a state where only the cleaner body is separated in the vacuum cleaner of fig. 5. Wherein the first tool assembly, the second tool assembly and the tube assembly are in a state of being coupled to each other.

Fig. 9 is a perspective view illustrating a state where the cleaner body and the first tool assembly are separated in the vacuum cleaner of fig. 5.

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

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

Fig. 12 is an exploded perspective view showing the first tool assembly.

Fig. 13A is a view showing a state where 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 a view showing a state where the first rotating body and the second rotating body are spread apart from each other in the first tool assembly.

Fig. 14 is a sectional view showing a state where the first tool assembly and the second tool assembly are coupled to each other.

Fig. 15A is a perspective view showing a state where the cleaner body, the first tool assembly, and the second tool assembly are coupled to each other.

Fig. 15B is a perspective view illustrating a state in which the brush cover moves to the rear side in the first direction in fig. 15A.

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

Fig. 17A is a sectional view showing a state where the cleaner body, the first tool assembly, and the second tool assembly are coupled to each other, and fig. 17B is a sectional view showing a state where the second lever is operated.

Fig. 18 is a perspective view showing a state where the second tool assembly is separated in fig. 15A.

Fig. 19A is a perspective view illustrating a state in which the cleaner body, the first tool assembly, and the second tool assembly are coupled to each other, and fig. 19B is a perspective view illustrating a state in which the brush cover is moved to the rear side in the first direction in fig. 19A.

Fig. 20 is a view showing a part of the second body of the second tool assembly.

Fig. 21A is a sectional view showing the second tool assembly, and fig. 21B is a sectional view showing a state in which the brush cover is moved to the rear side in the first direction in fig. 21A.

Fig. 22 is an exploded perspective view showing the tube assembly.

Fig. 23A is a sectional view showing a state where the second tool key is pressed for rotation of the third lever, and fig. 23B is a sectional view showing a state where the second tool assembly and the pipe assembly are separated.

Fig. 24A is a sectional view showing a state where the first tool button is pressed for rotation of the second lever, and fig. 24B is a sectional view showing a state where the second tool assembly fixed on the tube assembly is separated from the first tool assembly.

Fig. 25A is a sectional view showing the second tool assembly and the pipe assembly, and fig. 25B is a sectional view showing a state in which the brush cover is moved to the rear side in the first direction in fig. 25A.

Fig. 26A is a perspective view showing a state where a first tool assembly and a second tool assembly of an embodiment are separated, fig. 26B is a perspective view of the second tool assembly of fig. 26A viewed from another direction, and fig. 26C and 26D are perspective views of a state where the first tool assembly and the second tool assembly of fig. 26A are combined viewed from directions different from each other.

Detailed Description

Hereinafter, in order to more specifically describe the present invention, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Like reference numerals refer to like structural elements throughout the scope of the embodiments of the present invention.

In describing the embodiments disclosed in the present specification, if it is determined that a detailed description of a related known art would obscure the technical idea of the embodiments disclosed in the present specification, a detailed description thereof will be omitted. The accompanying drawings are only for the purpose of facilitating understanding of the embodiments disclosed in the present specification, and are not intended to limit the technical spirit of the present invention, but rather, to cover all modifications, equivalents, and alternatives included in the technical spirit and scope of the present invention.

The terms first, second, etc. containing ordinal numbers may be used to describe various structural elements, but the structural elements are not limited by the terms. The terms are used only for the purpose of distinguishing one structural element from other structural elements.

If a structural element is referred to as being "connected" or "in contact with" another structural element, it may be directly connected or in contact with the other structural element, but it is also understood that other structural elements may be present therebetween. Conversely, if a structural element is referred to as being "directly connected" or "directly contacting" another structural element, it is understood that no other structural element is present therebetween.

If it is mentioned that a structural element is "coupled" to another structural element, unless otherwise specifically defined, it may be directly coupled to the other structural element, fixedly coupled to the other structural element, or coupled to the other structural element in a manner such that relative movement does not occur.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

In the present application, the terms "comprises" or "comprising" are used merely to specify the presence of the features, numerals, steps, actions, structural elements, components, or combinations thereof described in the specification, and are not intended to preclude the presence or addition of one or more other features, numerals, steps, actions, structural elements, components, or combinations thereof.

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

Fig. 2A is a perspective view showing a vacuum cleaner 1 of an embodiment different from that of fig. 1, and fig. 2B is a view showing the vacuum cleaner 1 of an embodiment different from that of fig. 1 and 2A.

Fig. 3 is a sectional view schematically showing the cleaner body 100.

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

The vacuum cleaner 1 includes a cleaner body 100, a connection pipe 200, and a suction nozzle 300. The external air, etc. first flows in through the suction nozzle 300 and then moves toward the cleaner body 100 through the connection pipe 200.

The cleaner body 100 is a structural element for generating suction force.

For this purpose, the cleaner body 100 includes a motor (first motor 110).

In one embodiment, the motors described in the embodiments of the present invention including the first motor 110 may be respectively composed of a direct current motor, an alternating current motor, a general motor, a BLDC motor, a stepping motor, or the like.

A fan (fan), an impeller (impeller), or the like may be coupled to the rotating shaft 111 of the first motor 110 of the cleaner body 100 to rotate, and thus, a flow of air is generated when the first motor 110 rotates.

Inside the cleaner body 100, the first motor 110 and the fan or the impeller coupled to the first motor 110 are rotated with respect to the rotation shaft 111, so that a pressure difference may be generated between the inside and the outside of the cleaner body 100, and a suction force may be generated in the cleaner body 100.

The cleaner body 100 has a body suction port 140.

The body suction port 140 is an inlet of the cleaner body 100, and dust and the like flowing in through the body suction port 140 are accommodated in the cleaner body 100.

The suction nozzle 300 has a basic suction port 311 (refer to fig. 4) as a hole into which air and/or foreign substances flow.

The connection pipe 200 connects the cleaner body 100 and the suction nozzle 300. The connection pipe 200 is configured in a pipe (pipe or tube) shape, and forms a passage through which the external air or the like flowing in through the base suction port 311 moves toward the cleaner body 100.

To avoid unintended bending or deformation, the connection tube 200 may be constructed of a stronger material. The connection tube 200 may be formed of plastic or metal, or include these materials.

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

The first connection part 210 may constitute an inlet of the connection pipe 200 through which external air flows into the connection pipe 200, and the second connection part 220 may constitute an outlet of the connection pipe 200 through which air inside the connection pipe 200 escapes toward the cleaner body 100.

The first connection part 210 and the second connection part 220 may constitute both side end parts of the connection pipe 200.

In one embodiment, the cleaner body 100 is configured to be fixed, and the cleaner body 100 is fixedly coupled to the second coupling part 220 side of the connection pipe 200. That is, the cleaner body 100 and the connection pipe 200 may be configured to be fixed to each other without being moved independently from each other. In this case, the vacuum cleaner 1 may be configured in a "stick cleaner" form.

In another embodiment, the cleaner body may be configured to be variable in its form, and a portion of the cleaner body may be configured to be movable relative to the connection pipe 200. In one embodiment, the cleaner body 100 can be divided into a body 101, a body suction opening 140, and a hose 102. In the cleaner body 100, a motor or the like for generating suction force to the body suction port 140 may be provided inside the body portion 101. A gently curved hose 102 may be coupled between the body suction port 140 of the cleaner body 100 and the body portion 101. That is, in the vacuum cleaner 1, the body part 101 of the cleaner body 100 and the connection pipe 200 may be individually moved, respectively. At this time, the additional handle 103 may be fixedly coupled to the body suction opening 140. In this case, the vacuum cleaner 1 may be configured in a "canister cleaner" mode (see fig. 2B).

Hereinafter, as shown in fig. 1 or 2A, a description will be given with reference to a form in which the main body suction port 140 is fixedly formed in the cleaner main body 100 and the cleaner main body 100 is fixedly connected to the second connection portion 220 side of the connection pipe 200.

In one embodiment, the cleaner body 100 may include a handle 120, a dust bucket 130, a body suction opening 140, and a battery 150.

The handle 120 is formed at one side of the cleaner body 100. The handle 120 is configured to be stably held by a user's hand. The handle 120 may be formed at a side opposite to the body suction port 140 (an opposite side of the body suction port 140). When the body suction opening 140 is formed at the front side of the cleaner body 100, the handle 120 may be formed at the rear side of the cleaner body 100.

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

The dust bucket 130 is a container configured to collect foreign substances such as dust separated from air inside the cleaner body 100. In this case, impurities such as dust flowing into the cleaner body 100 can be separated from the air by a cyclone method. In addition, the air separated from the foreign substances inside the cleaner body 100 may be discharged to the outside of the cleaner body 100 through the additional discharge port 170.

The dust bucket 130 may be detachably coupled to the cleaner body 100. The dust bucket 130 may be formed to be transparent so that impurities trapped inside thereof can be visually confirmed from the outside.

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

The body suction port 140 constitutes an inlet of the cleaner body 100 through which air, dust, etc. flow into the cleaner body 100. The main body suction port 140 may be formed to protrude to the outside of the cleaner main body 100.

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

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 fixedly connected through the medium of the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 disposed between the connection pipe and the body suction port.

Fig. 4 is a diagram showing a use state of the vacuum cleaner 1. The passage (passage through which air, dust, etc. move, 301a) provided inside the suction nozzle 300 is indicated by a dotted line in fig. 4.

The directions X1, Y1, and Z1 described in the embodiments of the present invention are directions orthogonal to each other. 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 can be parallel to the floor surface B, and Z1 can be perpendicular to the floor surface B.

The user U can use the vacuum cleaner 1 while holding the cleaner body 100, and at this time, the connection pipe 200 can be placed obliquely toward the lower front side of the user U, and the suction nozzle 300 is positioned on the floor surface B on the front side of the user U. In such a 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 be configured to be suitable for sucking dust and the like in a state of being placed on the front floor surface B of the user U. For this, the suction nozzle 300 may be configured to distinguish front and rear directions from each other and to distinguish up and down directions from each other by itself.

Assuming that the suction nozzle 300 is placed on a flat floor surface B in 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 configured in a left-right symmetrical manner.

As described above, the suction nozzle 300 is configured to include the basic suction port 311.

The basic suction port 311 may be the first inlet through which air and foreign substances flow into the vacuum cleaner 1, and the suction nozzle 300 may have various configurations within a range having such a basic suction port 311.

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

In one embodiment, the nozzle 300 is comprised of a nozzle housing 301 and a connecting neck 302. The passage 301a communicates with the inside of the connection tube 200 through the nozzle housing 301 and the connection neck 302.

The nozzle housing 301 may be configured to be placed on the floor and moved along the floor surface B. At this time, the basic suction port 311 may be formed at the bottom surface of the nozzle housing 301.

In order to realize smooth movement of the nozzle housing 301 placed on the floor, a plurality of wheels (caster wheels 303) may be formed on the bottom surface of the nozzle housing 301.

The nozzle housing 301 may be constructed to include a nozzle head 310 and a nozzle neck 320. The nozzle head 310 may constitute a front side portion of the nozzle housing 301, and the nozzle neck 320 constitutes a rear side portion of the nozzle head 310.

The primary intake opening 311 may be formed in the bottom surface of the nozzle head 310.

The nozzle neck 320 is formed in a tube shape and extends from the rear side of the nozzle head 310 toward the rear side. In the nozzle housing 301, the nozzle neck 320 is a portion combined with the connection neck 302, and the nozzle neck 320 and the connection neck 302 may be combined in such a manner as to be rotatable with each other.

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

The foreign substances flowing from the suction nozzle 300 to the basic suction port 311 may pass through the inside of the nozzle neck 320 and the inside of the connection neck 302 and move toward the connection pipe 200 side. An additional bellows 304 may be inserted into the nozzle housing 301 (particularly, the nozzle neck 320) and the connection neck 302, and in the case of such a bellows 304, the foreign substances (dust, etc.) flowing into the basic suction port 311 pass through the inside of the bellows 304 and move toward the connection pipe 200.

The connection neck 302 constitutes a rear side portion of the suction nozzle 300 and may be formed at a rear side of the suction nozzle housing 301.

As described above, the nozzle housing 301 (nozzle neck 320) and the connection neck 302 are rotatably coupled to each other. The nozzle housing 301 (nozzle neck 320) and the connecting neck 302 are rotatably coupled to each other with reference to the nozzle rotation axis S1. The nozzle rotation axis S1 may be formed parallel to the floor surface B.

In one embodiment, a rotary cleaner 305 may be provided at the suction nozzle 300. The rotary cleaner 305 is substantially configured in a roller form, and is rotatably coupled to the nozzle housing 301 (nozzle head 310) with the center axis 305a thereof as a reference. The rotary cleaner 305 may be coupled to a bottom surface of the nozzle housing 301 (nozzle head 310) at a position more forward than the basic suction port 311 (refer to fig. 1).

The rotary cleaner 305 may be constructed in the form of an agitator (agitator) such as a vacuum cleaner.

In order to realize the rotation of the rotary cleaner 305, a motor (second motor 306) may be provided inside the suction nozzle 300.

In one embodiment, an outer circumferential surface layer 305b including brushes and/or lint may be formed on the outer circumferential surface of the rotary cleaner 305. The outer peripheral surface layer 305B of the rotary cleaner 305 may be disposed in contact with or close to the floor surface B, and as the rotary cleaner 305 rotates, dust on the floor surface or the like may be swept or sucked toward the base suction port 311.

In another embodiment, a cloth 307 (see fig. 2A and 2B) may be provided in the suction nozzle 300. The wiper 307 is formed flat and coupled to the bottom surface of the nozzle housing 301 (nozzle head 310), and may be coupled to the nozzle housing 301 (nozzle head 310) so as to be rotatable about a rotation shaft 307a perpendicular to the floor surface B or substantially perpendicular to the floor surface B. The wiper 307 may be two wiper 307, and the two wiper 307 may rotate in opposite directions to each other. To achieve the rotation of the cloth 307, a motor (third motor 308) may be provided inside the suction nozzle 300.

As described above, the connection pipe 200 includes the first connection portion 210 and the second connection portion 220. A direction from the first connection part 210 toward the second connection part 220 may be a length direction of the connection pipe 200, and a direction from the second connection part 220 toward the first connection part 210 may be a length direction of the connection pipe 200.

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

In an embodiment of the present invention, a direction from the body suction opening 140 toward the suction nozzle 300 may be defined as a first direction X2.

In the cleaner body 100, a direction in which the body suction port 140 is convexly formed may be defined as a first direction X2, and in addition, a direction in which the connection pipe is located with respect to the cleaner body 100 may be a first direction X2.

The main body suction port may be formed in a pipe shape protruding in the first direction from the cleaner main body.

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

In the embodiment of the present invention, a direction orthogonal to the first direction X2 is defined as a second direction Y2. In a state where the connection pipe 200 is placed such that the longitudinal direction of the connection pipe 200 is parallel to the floor surface B, the second direction Y2 may be configured to be 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.

Further, a direction orthogonal to the first direction X2 and the second direction Y2 is defined as a third direction Z2. In particular, the third direction Z2 may be a vertical direction when the connection pipe 200 is laid horizontally in parallel with a horizontally flat floor surface, and the third direction Z2 may be a front direction when the connection pipe 200 is vertically laid.

In one embodiment, the connecting tube may be formed in a curved shape in a longitudinal direction thereof.

In another embodiment, the connection pipe 200 may be formed in a linear shape in a longitudinal direction thereof. That is, the connection pipe 200 may be configured to be parallel to the first direction X2, and the central axis of the connection pipe 200 may be configured to be parallel to the first direction X2.

The first connection part 210 constitutes a part of the front side of the connection pipe 200 and the second connection part 220 constitutes a part of the rear side of the connection pipe 200 with reference to the first direction X2.

The connection pipe 200 may have a constant cross section along the longitudinal direction (the first direction X2) or may have a variable cross section along the longitudinal direction.

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

As described above, the connection neck 302 of the suction nozzle 300 is coupled to and separated from the first connection part 210 of the connection tube 200.

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

Fig. 5 is a perspective view illustrating a state in which the cleaner 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.

Fig. 6 is a perspective view illustrating a state in which the cleaner body 100, the first tool assembly 400, the second tool assembly 500, and the tube assembly 600 are separated from each other in the vacuum cleaner 1 of fig. 5, respectively.

Fig. 7 is a sectional view illustrating a state where the cleaner body 100, the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 are coupled to each other.

Fig. 8 is a perspective view illustrating a state where only the cleaner body 100 is separated in the vacuum cleaner 1 of fig. 5. Wherein the first tool assembly 400, the second tool assembly 500, and the tube assembly 600 are in a state of being coupled to each other.

Fig. 9 is a perspective view illustrating a state where the cleaner body 100 and the first tool assembly 400 are separated in the vacuum cleaner 1 of fig. 5. Wherein the cleaner 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.

Fig. 10 is a perspective view illustrating a state where the cleaner body 100, the first tool assembly 400, and the second tool assembly 500 are separated in the vacuum cleaner 1 of fig. 5. Wherein the cleaner 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.

The first tool assembly 400, the second tool assembly 500, and the tube assembly 600 described in the embodiments of the present invention may respectively form channels in which dust and the like move. The first tool assembly 400 and the second tool assembly 500 described in the embodiments of the present invention may respectively constitute suction ports for sucking dust and the like. Therefore, the first tool assembly 400, the second tool assembly 500, and the tube assembly 600 described in the embodiment of the present invention are each configured to include a structural element configured in a tube shape. In this case, the axial direction of the structural element configured in the tube form may be parallel to the first direction X2, and the axial direction may be coincident with the first direction X2.

The tube described in the embodiment of the present invention is configured in the form of a hollow tube (pipe). The tube described in the embodiment of the present invention may be configured in a tube state constituting a passage of the first direction X2. The tube described in the embodiment of the present invention may be configured such that the outer diameter or the inner diameter of at least a part thereof is constant along the first direction X2, or may be configured such that the outer diameter or the inner diameter of at least a part thereof is deformed along the first direction X2. The tube described in the embodiment of the present invention may be variously configured in the shape of its cross section, and for example, it may be configured in a circular shape, an oval shape, a polygonal shape, or the like.

In the vacuum cleaner 1, the cleaner body 100, the first tool assembly 400, the second tool assembly 500, and the pipe assembly 600 may be fixedly coupled to each other and used.

In the vacuum cleaner 1, the cleaner 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 body 100 (see fig. 8). In this case, the cleaner body 100 may be used in combination with another suction nozzle.

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 cleaner body 100 and the first tool assembly 400 may be coupled to each other (refer to fig. 9). At this time, the first tool assembly 400 may form a suction nozzle by itself, and suck dust, etc. through the first suction port 405 of the first 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 cleaner body 100, the first tool assembly 400, and the second tool assembly 500 may be coupled to each other (see fig. 10). At this time, the second tool assembly 500 may form a suction nozzle by itself, and suck dust, etc. through the second suction port 505 of the second tool assembly 500.

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

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

The first tool assembly 400 has a first suction port 405 communicating with the body suction port 140. The first tool assembly 400 is detachably fixed to the body suction port 140.

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

The first tool assembly 400 includes a first elastic body 430, a first key cover 440, a first rotating spring 470, and a second rotating spring 480.

The body suction port 140 may be configured in a tube shape along the first direction. A first locking groove 141 may be formed on an outer side surface of the body suction port 140.

The first locking groove 141 may be formed in a groove shape recessed from the outer surface of the main body suction port 140.

In one embodiment, the first catching groove 141 may be formed at a front side of the body suction port 140 in the third direction Z2. Therefore, when body suction port 140 is placed parallel to floor surface B, first locking groove 141 may be located above body suction port 140, and when body suction port 140 is placed vertically to floor surface B, first locking groove 141 may be located in front of body suction port 140.

The first body 410 is detachably attached to the main body suction port 140.

The first body 410 may be configured in a tube shape along a first direction. The first body 410 may be configured such that the central axis direction thereof is parallel to the first direction X2.

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

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

The first body 410 may be provided with a first opening 411 as a hole to be penetrated.

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

The first opening 411 is formed at the front side 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 particularly, may be formed at a position corresponding to the first catching protrusion 421 of the first lever 420.

In an embodiment, the first body 410 and the body suction port 140 may be combined with each other as the body suction port 140 is inserted (sandwiched) into the first body 410. That is, as the body suction port 140 moves in the first direction X2 and is inserted into the first body 410, the body suction port and the first body can be coupled to each other.

The first body 410 and the body suction port 140 are exactly combined with each other. That is, in a state where the first main body 410 and the main body suction port 140 are coupled, free movement in a direction orthogonal to the first direction X2 does not occur between the first main body 410 and the main body suction port 140.

The first button cover 440 covers the first opening 411 and is fixedly coupled to the first body 410 at an outer side of the first lever 420.

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

The first lever 420 is rotatably (pivotally) coupled to the first body 410 with reference to the first lever axis S2. The first lever 420 may be coupled to the first body 410 at a front side of the third direction Z2. The first lever axis S2 of the first lever 420 may be configured in parallel with the second direction Y2.

The first rotation center portion 422 constitutes a rotation axis (first lever axis S2) of the first lever 420. The first rotation center portion 422 is located closer to the cleaner body 100 than the first latching protrusion 421. The first rotation center part 422 may be supported at one side of the first body 410.

The first latching protrusion 421 protrudes toward the inner side of the first body 410. That is, the first latching protrusion 421 is configured to protrude in the opposite direction of the third direction Z2. The first latching protrusion 421 may protrude toward the inside 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 inward from the inner surface of the first body 410, or the first locking protrusion 421 may be located outward from the inner surface of the first body 410 or at the same position.

In a state where the first locking protrusion 421 protrudes inward from the inner surface of the first body 410, the first locking protrusion 421 is configured to be inserted into the first locking groove 141 and locked.

The first key portion 423 may be formed on the opposite side of the first latching protrusion 421 centering on the first rotation center portion 422. The first key portion 423 extends from the first rotation center portion 422 and protrudes to the outside of the first key cover 440. The first key part 423 is spaced apart from the outer surface of the first body 410 at the outer side of the first body 410, and a user can rotate (pivot) the first lever 420 about the first rotation center part 422 as a rotation axis by pressing the first key part 423.

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

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

A first elastomer coupling portion 424 may be formed at the first rod 420. The first elastomer bond 424 may be integrally formed with other structural elements forming the first stem 420. The first elastic body coupling part 424 forms a space for coupling the first elastic body 430 with the first button cover 440. When the first latching protrusion 421 is a surface facing the inner side of the first body 410, the first elastic body coupling part 424 may be a surface facing the outer side of the first body 410.

In a state where the body suction port 140 is completely inserted into the first body 410, when no additional external force is applied (when no additional external force is applied to the first key portion 423), the first elastic body 430 maintains the state where the first locking protrusion 421 is inserted into the first locking groove 141. At this time, the fixed coupling (fastening) of the cleaner body 100 (body suction port 140) and the first tool assembly 400 (first main body 410) is maintained.

In a state where the body suction port 140 is inserted into the first body 410, when the first lever 420 is rotated by pressing the first key part 423, the first elastic body 430 is compressed, and the first latching protrusion 421 escapes from the first latching groove 141. Accordingly, the body suction port 140 (the cleaner body 100) is separated from the first tool assembly 400 (the first main body 410), and the user can pull the body suction port 140 from the first tool assembly 400 in the direction opposite to the first direction X2 to separate the body suction port from the first tool assembly 400.

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

The second locking groove 412 may be formed at the first front portion 410 b.

The second locking groove 412 may be configured in a groove shape recessed from the outer surface of the first body 410.

In an embodiment, the second latching groove 412 may be formed at a front side of the first body 410 in the third direction Z2. Therefore, when the first body 410 is placed in parallel with the floor surface B, the second locking groove 412 may be considered to be positioned on the upper side of the first body 410, and when the first body 410 is placed vertically to the floor surface B, the second locking groove 412 may be considered to be positioned on the front side of the first body 410.

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

Fig. 13A is a view showing a state where 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 a view showing a state where the first rotating body 450 and the second rotating body 460 are opened from each other in the first tool assembly 400.

Fig. 14 is a sectional view illustrating a state where 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 a state as shown in fig. 13A, and when the first tool assembly 400 and the second tool assembly 500 are coupled to each other, the first tool assembly 400 may be in a state as shown in fig. 13B.

The first and second rotating bodies 450 and 460 may form the first suction port 405 as the tips of the first and second rotating bodies 450 and 460 are positioned in front of the first body 410 with reference to the first direction X2 and the first and second rotating bodies 450 and 460 rotate (rotate in opposite directions) with respect to the first body 410.

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

The first and second rotating bodies 450 and 460 may be located at opposite sides from each other, and may be symmetrical to each other, centering on the first body 410. The first rotating body 450 and the second rotating body 460 may be symmetrical about a center plane CS perpendicular to the second direction Y2.

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

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

The first and second rotating bodies 450 and 460 rotate in opposite directions around the first body 410, and the tips of the first and second rotating bodies 450 and 460 can rotate so as to be apart from each other (see fig. 13B), and the tips can rotate so as to approach each other (see fig. 13A).

As 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 presses the first rotating body 450 and the second rotating body 460 to rotate, and the front ends of the first rotating body 450 and the second rotating body 460 are in a state of being spread apart 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 and second rotating bodies 450 and 460 are not supported by the second body 510, and thus, the first and second rotating bodies 450 and 460 may rotate in opposite directions to each other such that the respective front ends thereof approach each other.

Thus, the first rotating body 450 and the second rotating body 460 can constitute the 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 one tube form. That is, the first suction port 405, which is an open hole, is provided at the tip of the tube formed by combining the first rotating body 450 and the second rotating body 460, and the first body 410 is coupled to the rear side of the tube formed by combining the first rotating body 450 and the second rotating body 460.

The first suction port 405 is an inlet through which air, dust, etc. flow into the first body 410 and the cleaner body 100, and the first rotating body 450 and the second rotating body 460 may be variously configured within such a range.

In order to form the first suction port 405, the first rotating body 450 and the second rotating body 460 may be respectively configured in a substantially half pipe (half tube) form. That is, in a state where the first rotating body 450 and the second rotating body 460, which constitute a half-pipe form symmetrical to each other, are closely coupled to each other, when the first rotating body 450 and the second rotating body 460 are opened apart from each other, one pipe formed as a completed one may be configured as two pipes having each half.

As described above, in the vacuum cleaner 1 according to the embodiment of the present invention, the first rotating body 450 and the second rotating body 460 constitute a "variable nozzle".

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

Since the variable suction nozzle (the first and second rotating bodies 450 and 460) is coupled to the connection pipe 200 and/or the cleaner body 100, there is no possibility of loss, and since the variable suction nozzle can be used immediately when the first tool assembly 400 is separated from the connection pipe 200 in order to use a suction nozzle other than the suction nozzle 300, it is possible to remarkably improve convenience of use.

Further, when the first tool assembly 400 and the second tool assembly 500 are coupled to each other, the first and second rotating bodies 450 and 460 may be closely positioned on the inner circumferential surface of the second body 510, and particularly, since the first and second rotating bodies 450 and 460 are respectively formed in a half pipe shape, they may be closely attached on the inner circumferential surface of the second body 510, and thus, an increase in volume due to the first and second rotating bodies 450 and 460 may be minimized, and a passage having a sufficient size for dust to move may be formed.

The first rotating body 450 includes a first half pipe 451 and a first pressing portion 452.

The first half pipe 451 is substantially configured in a half pipe form, and includes a first corner 451a and a second corner 451b as corners parallel to each other.

The first half pipe 451 is formed by a first half pipe wall 451c forming a wall surface between a first corner 451a and a second corner 451 b.

The first pressing portion 452 extends to a side different from the first half pipe 451 with reference to the first rotation axis S3.

When the first half pipe 451 substantially constitutes the front portion with reference to the first rotation shaft S3, the first pressing portion 452 may constitute the rear portion. The first pressing portion 452 can be configured to be very small compared to the first half pipe 451.

The first rotating body 450 is rotatably coupled to the first body 410 with reference to the first rotation axis S3. At this time, the first half pipe 451 may be formed to protrude from the first body 410 in the first direction X2, and the first pressing portion 452 may be formed to protrude from the first body 410 in the second direction Y2.

The first body 410 is formed with a first pressing hole 415. The first pressing hole 415 is a hole penetrating the first body 410, and the first pressing hole 415 may be a hole penetrating the first body 410 substantially in parallel with the second direction Y2. The first pressing hole 415 may be formed at the first front portion 410 b.

In a state where 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 first pressing part 452 of the first pressing hole 415 is configured to have the maximum protrusion degree in a state where the first half pipe 451 and the second half pipe 461 are rotated inward to the maximum extent so as to configure the first suction port 405, and the first pressing part 452 of the first pressing hole 415 is configured to have the minimum protrusion degree in a state where the first half pipe 451 and the second half pipe 461 are rotated outward to the maximum extent so as to be spaced apart from each other.

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

The second half tube 461 is substantially configured in a half tube shape, and includes the third corner 461a and the fourth corner 461b as corners parallel to each other. The second half pipe 461 is symmetrical to the first half pipe 451 about the center plane CS.

The second half pipe 461 includes a second half pipe wall 461c forming a wall surface between the third corner 461a and the fourth corner 461 b.

When the first half pipe 451 and the second half pipe 461 are closely attached to each other in such a manner as to constitute the first suction port 405, the first half pipe wall 451c and the second half pipe wall 461c are spaced apart from each other. The first half pipe wall 451c and the second half pipe wall 461c may be configured such that the distance therebetween becomes narrower toward the front side of the first direction X2. That is, the first half pipe 451 and the second half pipe 461 constituting the first suction port 405 may be configured such that the cross-sectional area of the inside thereof becomes narrower toward the front side in the first direction X2.

The second pressing portion 462 extends to a side different from the second half pipe 461 with reference to the second rotation axis S4.

When the second half pipe 461 substantially constitutes the front side portion with reference to the second rotation shaft S4, the second pressing portion 462 may constitute the rear side portion. However, the second pressing portion 462 can be formed to be very small compared to the second half pipe 461.

The second rotating body 460 is rotatably coupled to the first body 410 with reference to the second rotation axis S4. In this case, the second half tube 461 may be formed to protrude from the first body 410 in the first direction X2, and the second pressing portion 462 may be formed to protrude from the first body 410 in the direction opposite to the second direction Y2.

The first body 410 is formed with a second pressing hole 416. The second pressing hole 416 is a hole penetrating the first body 410, and the second pressing hole 416 may be a hole penetrating the first body 410 substantially in parallel with the second direction Y2. The second pressing hole 416 may be formed at the first front portion 410 b.

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

In a state where 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 first half pipe 451 and the second half pipe 461 are configured to be maximally protruded by the second pressing portion 462 of the second pressing hole 416 in a state of being rotated inward to be maximally close to each other so as to configure the first suction port 405, and configured to be minimally protruded by the second pressing portion 462 of the second pressing hole 416 in a state of being rotated outward to be maximally far from each other so that the first half pipe 451 and the second half pipe 461 are configured to be maximally apart from each other.

The second pressing portion 462 is symmetrical to the first pressing portion 452 about the central plane CS.

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

The first and second rotating springs 470 and 480 may be formed in various spring forms that are elastically deformed. The first and second rotating springs 470 and 480 may be respectively configured in a leaf spring form. The first and second rotating springs 470 and 480 may be symmetrical to each other about the central plane CS.

The first rotating spring 470 is partially fixed to the first rotating body 450 and partially fixed to the first body 410, and the first rotating spring 470 elastically supports the first rotating body 450 such that the tip (tip based on the first direction X2) of the first rotating body 450 rotates toward the second rotating body 460.

A part of the second swiveling spring 480 is fixed to the second swiveling body 460 and the other part is fixed to the first body 410, and the second swiveling spring 480 elastically supports the second swiveling body 460 such that the tip of the second swiveling body 460 (the tip with respect to the first direction X2) swivels toward the first swiveling body 450.

As described later, the second body 510 may be constructed in a tube shape substantially along the first direction. When the first tool assembly 400 and the second tool assembly 500 are coupled to each other, the front side of the first body 410 is inserted behind the first direction X2 of the second body 510.

The second body 510 includes a pressing surface 515 constituting a rear inner circumferential surface in the first direction X2. The pressing surface 515 may constitute an inner circumferential surface of the second rear portion 510 a. The pressing surface 515 may be configured such that the inner diameter thereof increases toward the rear side in the first direction X2.

When the first body 410 and the second body 510 are coupled, the pressing surface 515 presses the first pressing portion 452 and the second pressing portion 462 to rotate the first rotating body 450 and the second rotating body 460 when the front side of the first body 410 in the first direction X2 is inserted to the rear side of the second body 510.

When the first body 410 and the second body 510 are coupled to each other, the first half pipe 451 is rotated outward by pressing the first pressing portion 452 with the pressing surface 515, and the second half pipe 461 is rotated outward by pressing the second pressing portion 462 with the pressing surface 515, and when the first body 410 and the second body 510 are coupled to each other, the first half pipe 451 and the second half pipe 461 are opened and maintained in a state of being closely attached to 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 460 is rotated by the second rotating spring 480, the first half pipe 451 and the second half pipe 461 approach each other and form the 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 closely attached to the third corner 461a, and the second corner 451b is closely attached to the fourth corner 461 b.

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 may be configured such that the cross-sectional area of the inner space thereof becomes narrower toward the front side in the first direction X2. That is, the first suction port 405 may be configured to have a relatively narrow interval, and the width of the first suction port 405 may be smaller than the inner diameter of the first body 410.

When the first and second rotating bodies 450 and 460 form the first suction port 405, the combined first and second rotating bodies 450 and 460 may be constructed in a form of a crevice tool (or crevice nozzle).

Fig. 15A is a perspective view illustrating a state in which the cleaner body 100, the first tool assembly 400, and the second tool assembly 500 are coupled to each other. In this state, the user can use the second tool assembly 500 as a suction nozzle for sucking dust and the like by operating the cleaner body 100.

Fig. 15B is a perspective view illustrating a state in which the brush cover 550 in fig. 15A moves to the rear side in the first direction X2. In this state, the user may operate the cleaner body 100 to use the second tool assembly 500 as a suction nozzle for sucking dust, etc.

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

Fig. 17A is a sectional view illustrating a state where the cleaner body 100, the first tool assembly 400, and the second tool assembly 500 are coupled to each other, and fig. 17B is a sectional view illustrating a state where the second lever 520 is operated.

Fig. 18 is a perspective view illustrating a state where the second tool assembly 500 is separated in 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 rod 520.

The second tool assembly 500 includes a second elastic body 530.

The second body 510 is configured in a tube shape along the first direction. The front frame of the second body 510 in the first direction X2 may constitute the second suction port 505.

The central axis direction of the second body 510 may be parallel to the first direction X2.

The front side frame of the second body 510 in the first direction X2 may be configured such that a front side portion in the third direction protrudes forward in the first direction X2 than a rear side portion in the third direction. That is, when viewed from the side, the front side frame of the first direction X2 of the second body 510 that constitutes the second suction port 505 of the second tool assembly 500 may be formed in a diagonal line shape.

The second body 510 is configured to be detachable from the first body 410. The first body 410 is inserted inwardly of the rear side of the first direction X2 of the second body 510. The second body 510 may be coaxially coupled to the first body 410 to receive the first rotating body 450 and the second rotating body 460.

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

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

When the second body 510 and the first body 410 are combined, the first front portion 410b of the first body 410 may be just clipped inside the second rear portion 510a of the second body 510.

The outer circumferential surface of the second rear portion 510a of the second body 510 may be configured to substantially or completely coincide with the outer circumferential surface of the first rear portion 410a of the first body 410. That is, in a state where the first body 410 and the second body 510 are coupled, there may be no step between the outer circumferential surface of the first rear portion 410a and the outer circumferential surface of the second rear portion 510 a.

A first fixing groove 517 and a second fixing groove 518 may be formed on an outer surface of the second body 510 (see fig. 20). The first and second fixing grooves 517 and 518 are spaced apart from the outer surface of the second body 510 in the first direction X2. When the first fixing groove 517 is a groove relatively formed at the front side in the first direction X2, the second fixing groove 518 is a groove relatively formed at the rear side in the first direction X2.

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

The second body 510 may be provided with a second opening 511 as a through hole. The second opening 511 may be formed at the second rear portion 510 a.

The second opening 511 is formed at the front side 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 particularly, may be formed at a position corresponding to the second catching protrusion 521 of the second lever 520.

The second opening 511 is formed at the rear side of 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 with reference to the first direction X2.

In an embodiment, the second body 510 and the first body 410 may be coupled to each other as the first body 410 is inserted (sandwiched) into the second body 510. That is, the first body 410 is moved in the first direction X2 and inserted into the second body 510, so that the combination of the two can be achieved.

The second body 510 and the first body 410 may be just combined with each other. That is, in a state where the second body 510 and the first body 410 are coupled, free movement in a direction orthogonal to the first direction X2 does not occur between the second body 510 and the first body 410.

The second lever 520 includes a second catching protrusion 521. The second lever 520 further includes a second rotation center portion 522 and a second key portion 523. The second locking protrusion 521, the second rotation center portion 522, and the second key portion 523 may be integrally formed.

The second lever 520 is rotatably (pivotally) coupled to the second body 510 with reference to a second lever axis S5. The second lever 520 may be coupled to the second body 510 at a front side of the third direction Z2. The second lever axis S5 of the second lever 520 may be configured in parallel with the second direction Y2.

The second rotation center portion 522 constitutes a rotation axis of the second lever 520 (second lever axis S5). The second rotation center portion 522 is located farther from the cleaner body 100 than the second latching protrusion 521. The second rotation center part 522 may be supported at one side of the second body 510.

The second locking protrusion 521 protrudes toward the inside of the second body 510. That is, the second locking projection 521 is configured to project in a direction opposite to the third direction Z2. The second latching protrusion 521 may protrude toward the inside 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 further inward than the inner surface of the second body 510, or the second locking protrusion 521 may be located further outward than the inner surface of the second body 510 or at the same position.

In a state where the second lever 520 is rotated in a direction toward the inside of the second body 510, the second locking protrusion 521 is inserted into the second locking groove 412 and locked.

The second key portion 523 may be formed on the opposite side of the second locking protrusion 521 centering on the second rotation center portion 522. The second key portion 523 is spaced apart from the outer side surface of the second body 510 at the outer side of the second body 510, and a user can rotate (pivot) the second lever 520 by pressing the second key portion 523 with the second rotation center portion 522 as a rotation axis.

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

The second elastic body 530 elastically supports the second lever 520 such that the second latching protrusion 521 protrudes toward the inside of the second body 510. The second elastic body 530 elastically supports the second lever 520 such that the second latching protrusion 521 is inserted into the second latching groove 412.

A second elastic body coupling portion 524 may be formed at the second lever 520. The second elastomer bonding portion 524 may be integrally formed with other structural elements constituting the second rod 520. The second elastic body coupling portion 524 may be an inner side surface of the second key portion 523.

In a state where the first body 410 is inserted into the second body 510, when no additional external force is applied (when no additional external force is applied to the second key portion 523), the second elastic body 530 maintains a state where the second locking protrusion 521 is inserted into the second locking groove 412. 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) will be maintained.

When the second lever 520 is rotated by pressing the second key part 523 in a state where the first body 410 is inserted into the second body 510, the second elastic body 530 is elastically deformed and the second latching protrusion 521 escapes from the second latching groove 412. Thus, the first body 410 (first tool assembly 400) is separated from the second tool assembly 500 (second body 510), and the user can pull the first body 410 from the second tool assembly 500 in the direction opposite to the first direction X2 to separate the first body.

Fig. 19A is a perspective view illustrating a state in which the cleaner body, the first tool assembly 400, and the second tool assembly 500 are coupled to each other, and fig. 19B is a perspective view illustrating a state in which the brush cover 550 is moved to the rear side of the first direction X2 in fig. 19A.

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

Fig. 21A is a sectional view showing the second tool assembly 500, and fig. 21B is a sectional view showing a state in which the brush cover 550 is moved to the rear side of the first direction X2 in fig. 21A.

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

The second tool assembly 500 includes a cover rod 554.

The brush 540 includes a plurality of strips 541. The strips 541 constituting the brush 540 are made of or include fibers, bristles, plastic, metal wires, or the like. Each strip 541 is formed substantially along the first direction X2 (the length direction of the strip is parallel to the first direction X2).

The brush 540 may be fixedly coupled along the front side rim of the second body 510 in such a manner as to protrude more to the front side of the first direction X2 than the second body 510. The brush 540 may be formed at a part or all of the front side frame of the first direction X2 of the second body 510. The brushes 540 may be configured to have a predetermined pattern or a predetermined interval along the outer circumferential direction of the front side frame of the first direction X2 of the second body 510.

The brush cover 550 may be configured in a tube shape along the first direction. The brush cover 550 may constitute the second suction port 505 together with the second body 510.

The brush cover 550 is coupled to the second body 510 to be movable in a direction opposite to the first direction X2 or the first direction X2.

When the brush cover 550 moves forward in the first direction X2 with respect to the second main body 510, the front end of the brush cover 550 in the first direction X2 protrudes forward than the front end of the second main body 510. When the brush cover 550 is maximally moved 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 may protrude forward or forward as the front end of the brush 540.

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 side of the brush 540 fixed to the second body 510 in the first direction X2.

When the brush cover 550 is moved rearward in the first direction X2 with respect to the second body 510, the brush 540 is exposed. When the brush cover 550 is maximally moved rearward in the first direction X2 with respect to the second body 510, the brush 540 is maximally exposed.

Hereinafter, the position of the brush cover 550 when the brush cover 550 is moved to the maximum in the front direction X2 with respect to the second body 510 to place the brush 540 in the inside of the brush cover 550 is referred to as a first position (see fig. 15A and 19A), and the position of the brush cover 550 when the brush cover 550 is moved to the maximum in the rear direction X2 with respect to the second body 510 to place the brush 540 in the state of being exposed to the outside of the brush cover 550 is referred to as a second position (see fig. 15B and 19B).

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

Since the third tool assembly 500 is coupled to the connection pipe 200 and/or the cleaner body 100, there is no possibility of loss, and since the second tool assembly 500 constituting the third suction nozzle can be used immediately when the second tool assembly 500 is separated from the connection pipe 200 in order to use other suction nozzles than the suction nozzle 300, it is possible to remarkably improve convenience of use.

Further, when the brush cover 550 is moved to the rear side in the first direction X2 to expose the brush 540, a nozzle of another embodiment can be configured, and the convenience of use can be further improved.

The brush cover 550 may be coupled to the second body 510 in a state of surrounding the second body 510. To this end, the brush cover 550 may have an outer diameter greater than that of the second body 510.

The brush cover 550 and the second body 510 are fittingly combined with each other. That is, in a state where the brush cover 550 and the second body 510 are coupled, free movement in a direction orthogonal to the first direction X2 does not occur between the brush cover 550 and the second body 510.

When the second body 510 and the first body 410 are combined, the first front portion 410b of the first body 410 may be just clipped inside the second rear portion 510a of the second body 510.

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

The outer circumferential surface of the brush cover 550 may be configured to substantially or completely coincide with the outer circumferential surface of the second rear portion 510a of the second body 510. That is, in a state where the brush cover 550 and the second body 510 are coupled and the brush cover 550 is moved to the rear side in the first direction X2 to the maximum extent, there may be no step between the outer side surface of the brush cover 550 and the outer side surface of the second rear portion 510 a.

The brush cover 550 may be provided with a plurality of brush accommodating spaces 550a partitioned from each other along a front side frame thereof. The brush accommodating space 550a may be formed at a front portion of the brush cover 550 in the first direction X2.

The brush cover 550 includes an inner tube 551, an outer tube 552, and a plurality of partitions 553.

The inner tube 551 and the outer tube 552 are each configured in a tube shape along the first direction.

In a state where the second body 510 and the brush cover 550 are coupled, the inner tube 551 may be positioned inside the second body 510, and the outer tube 552 may be positioned outside the second body 510. At this time, the inner tube 551 may contact the inner side surface of the second body 510, and the outer tube 552 may contact the outer side surface of the second body 510.

The inner tube 551 and the outer tube 552 may be configured such that front side ends thereof in the first direction X2 protrude to the same extent as each other.

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

The partition 553 connects the inner tube 551 and the outer tube 552 between the inner tube 551 and the outer tube 552. Partition walls 553 are repeatedly formed along the front side frame of the brush cover 550. The partition walls 553 are spaced apart from each other.

The partition 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 a brush housing space 550 a.

The sectional area, volume, pattern, etc. of each brush housing space 550a may be constantly or substantially constantly configured along the front side frame of the brush cover 550.

Each brush accommodating space 550a provided in the brush cover 550 accommodates a part of the brush 540.

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

When an external force is applied to the cap rod 554 coupled to the brush cap 550, the cap rod 554 may be rotated with respect to the brush cap 550, and when the applied external force is removed, the cap rod 554 may be reversely rotated to an original position. To this end, the second tool assembly 500 may include an elastic unit with which the brush cover 550 and the cover rod 554 are connected to each other. That is, the elastic means may elastically deform and store elastic force when external force is applied to the cap rod 554 to rotate the cap rod 554 with respect to the brush cover 550, and elastically restore and reversely rotate the cap rod 554 to an original position when the applied external force is removed.

In one embodiment, the cover rod 554 may be separately formed from the brush cover 550 and then be pivotally coupled to the brush cover 550. At this time, there may be an additional said elastic unit connecting the brush cover 550 and the cover rod 554.

In another embodiment, the cap rod 554 may be integrally formed with the brush cap 550. At this time, the cap rod 554 and the brush cap 550 may be connected using a pair of connection bridges 554 c. In this case, the cap rod 554, the brush cap 550, and the connecting bridge 554c may be made of a material such as plastic or metal that can be elastically deformed. The connecting bridge portion 554c is configured to be elastically deformable. The connection bridge 554c constitutes the elastic unit. The connecting bridge 554c constitutes a rotation shaft of the cover rod 554. A pair of connecting bridge parts 554c are formed at opposite sides of the cap rod 554, respectively, and are connected to the brush cap 550.

The cover rod 554 includes a fixing button 554a and a fixing protrusion 554 b. The fixing key 554a and the fixing protrusion 554b are formed on opposite sides with reference to a rotation axis (e.g., a connection bridge 554c) of the cover rod 554.

The fixing protrusion 554b protrudes toward the inside of the cover rod 554 and the inside of the brush cover 550.

When the brush cover 550 is moved in the opposite direction of the first direction X2 or the first direction X2 with respect to the second body 510, the fixing protrusion 554b is inserted into the first fixing groove 517 or the second fixing groove 518 and is locked.

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

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

When the user presses the fixing button 554a to rotate the cover lever 554, the fixing protrusion 554b may escape from the first fixing groove 517 or the second fixing groove 518 to release the locking, and at this time, the brush cover 550 may move in a direction opposite to the first direction X2 or the first direction X2 with respect to the second body 510. Thus, the brush cover 550 can be adjusted to be located at the first position or the second position.

In addition, in a state where the user presses the fixing button 554a to escape the fixing protrusion 554b from the first fixing groove 517 or the second fixing groove 518 and release the locking, when the brush cover 550 is moved forward in the first direction X2 with respect to the second body 510, the brush cover 550 may be completely separated from the second body 510. This enables the second tool assembly 500 to be easily maintained and managed.

The brush cover 550 is formed to include a rod groove 555.

The bar groove 555 is a hole penetrating inward and outward to expose the second bar 520, and is configured to extend forward from a rear side edge in the first direction X2. Rod slot 555 may be configured to extend through outer tube 552 in an outward and inward direction.

The brush cover 550 includes a third locking groove 556.

The third catching groove 556 is formed at an outer side surface of the brush cover 550. The third locking groove 556 may be formed in a groove shape recessed from the outer side surface of the brush cover 550 or in a hole shape penetrating the brush cover 550.

In an embodiment, the third catching groove 556 may be formed at a front side of the second tool assembly 500 (the brush cover 550) in the third direction Z2. Therefore, in the case where the center axis of the brush cover 550 is placed parallel to the floor surface B, the third catching groove 556 may be considered to be located on the upper side of the second tool assembly 500, and in the case where the center axis of the brush cover 550 is placed vertically to the floor surface B, the third catching groove 556 may be considered to be located on the front side of the second tool assembly 500.

A third catching groove 556 may be formed at the outer tube 552 of the brush cover 550. Third catch groove 556 and rod groove 555 may engage each other.

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

Fig. 22 is an exploded perspective view showing the tube assembly 600.

Fig. 23A is a sectional view showing a state where the second tool button 670 is pressed for rotation of the third lever 620, and fig. 23B is a sectional view showing a state where the second tool assembly 500 and the tube assembly 600 are separated.

Fig. 24A is a sectional view illustrating a state where the first tool button 660 is pressed for rotation of the second lever 520, and fig. 24B is a sectional view illustrating a state where the second tool assembly 500 fixed on the tube assembly 600 is separated from the first tool assembly 400.

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

The pipe assembly 600 is detachably attached to the cleaner body 100. For this, the cleaner body 100 may be formed with the first body coupling part 180, and the pipe assembly 600 may be formed with the second body coupling part 680.

The first body coupling part 180 may be formed right under the body suction port 140, and the second body coupling part 680 may be formed at the rear side of the pipe assembly 600 in the first direction X2.

One of the first and second body coupling parts 180 and 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 form, and the second body coupling part 680 is formed in a protrusion form to be inserted into the first body coupling part 180 just.

By forming the first and second body coupling parts 180 and 680, the vacuum cleaner can have a more stable coupling structure as a whole.

In addition, the cleaner body 100 and the suction nozzle 300 may be electrically connected to each other, and at this time, the electrical connection of the cleaner body 100 and the suction nozzle 300 is constructed through the first and second main body coupling parts 180 and 680. In one embodiment, the first terminal is formed at the first body coupling part 180 and the second terminal is formed at the second body coupling part 680, and when the first and second body coupling parts 180 and 680 are coupled to each other, the electrical connection between the cleaner body 100 and the suction nozzle 300 can be achieved by contacting the first and second terminals to each other.

The tube assembly 600 includes a third body 610 and a third rod 620.

The tube assembly 600 includes a second key cover 650, a first tool key 660, and a second tool key 670.

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

The third body 610 may be configured in a tube shape along the first direction. The central axis direction of the third body 610 may be parallel to the first direction X2.

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

The third body 610 may be provided with a third opening 611 as a hole therethrough.

The third opening 611 is formed at the front side 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 particularly, may be formed at a position corresponding to the third catching protrusion 621 of the third lever 620.

The third body 610 may be provided with a fourth opening 612 as a through hole.

The fourth opening 612 is formed at the front side 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 tube assembly 600 are combined, and particularly, may be formed at a position corresponding to the second key part 523 of the second lever 520.

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

In an embodiment, the third body 610 and the second tool assembly 500 may be coupled to each other as the second tool assembly 500 is inserted (sandwiched) into the third body 610. That is, the second tool assembly 500 is moved in the first direction X2 and inserted into the third body 610, so that the combination of the two can be achieved.

In a state where the second tool assembly 500 is inserted into the third body 610 of the tube assembly 600, the third body 610 of the tube assembly 600 may be configured to receive all or most of the first tool assembly 400 therein. For this, in the first direction X2, the length of the third body 610 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 exactly coupled to each other. That is, in a state where the third body 610 and the second tool assembly 500 are coupled, free movement in a direction orthogonal to the first direction X2 does not occur between the third body 610 and the second tool assembly 500.

The second button cover 650 is fixedly coupled to the third body 610 at an outer side of the third lever 620.

First key hole 651 and second key hole 652 are formed in second key cover 650.

The first key hole 651 and the second key hole 652 are holes penetrating the second key cover, and are spaced from each other in the first direction X2. The first key hole 651 is formed at an opposite rear side of the first direction X2, and the second key hole 652 is formed at an opposite front side of the first direction X2.

The first tool key 660 is inserted into the first key hole 651 and moved in a third direction or a direction opposite to the third direction.

The second tool key 670 is inserted into the second key hole 652 and moved in the third direction or a direction opposite to the third direction.

The third lever 620 includes a third catching protrusion 621. The third lever 620 further includes a third rotation center portion 622 and a third key portion 623. The third catching protrusion 621, the third rotation center portion 622, and the third key portion 623 may be integrally formed.

The third lever 620 is rotatably (pivotally) coupled to the third body 610 with reference to the third lever axis S6. The third lever 620 may be coupled to the third body 610 at a front side in the third direction Z2. The third lever axis S6 of the third lever 620 may be configured in parallel with the second direction Y2.

The third rotation center portion 622 constitutes a rotation shaft of the third lever 620 (third lever shaft S6). The third rotation center portion 622 is located closer to the cleaner body 100 than the third catching protrusion 621. The third rotational center portion 622 may be supported at one side of the third body 610.

The third catching protrusion 621 protrudes toward the inside of the third body 610. That is, the third locking projection 621 is configured to project in a direction opposite to the third direction Z2. The third catching protrusion 621 may protrude toward the inside of the third body 610 through the third opening 611. The third catching protrusion 621 may protrude more inward than the inner side surface of the third body 610 or the third catching protrusion 621 may be located more outward than the inner side surface of the third body 610 or the same position according to the degree of rotation of the third lever 620 with respect to the third body 610.

In a state where the third locking protrusion 621 protrudes inward from the inner surface of the third body 610, the third locking protrusion 621 is inserted into the third locking groove 556 and locked.

The third key portion 623 may be formed on the opposite side of the third catching protrusion 621 centering on the third rotation center portion 622. The third key portion 623 extends from the third rotation center portion 622 and protrudes outward of the third body 610. The third key portion 623 is spaced apart from the outer side of the third body 610 at the outer side of the third body 610.

In a state where 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 rod 620 are not exposed to the outside. Further, at this time, the third key portion 623 is positioned just inside the second tool key 670, and the inside of the second tool key 670 may contact the outside of the third key portion 623.

The user presses the third key portion 623 by pressing the second tool key 670 inward, thereby rotating (pivoting) the third lever 620 about the third rotation center 622.

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

The third elastic body 630 elastically supports the third lever 620 such that the third catching protrusion 621 protrudes toward the inside of the third body 610. The third elastic body 630 elastically supports the third lever 620 such that the third catching protrusion 621 is inserted into the third catching groove 556.

A third elastomer bond 624 may be formed at the third shaft 620. The third elastomeric bond 624 may be integrally formed with other structural elements forming the third shaft 620. The third elastic body coupling portion 624 forms a space for coupling the third elastic body 630 with the second tool button 670. The third elastic body coupling parts 624 may constitute opposite side portions of the third catching protrusion 621. When the third catching protrusion 621 is a portion toward the inside of the third body 610, the third elastic body coupling part 624 may be a portion toward the outside of the third body 610.

In a state where the brush cover 550 of the second tool assembly 500 is inserted into the third body 610, in a case where no additional external force is applied (in a case where no additional external force is applied to the third key portion 623), the third elastic body 630 maintains a state where the third locking protrusion 621 is inserted into the third locking groove 556. At this time, the coupling (fastening) of the brush cover 550 (second tool assembly 500) and the tube assembly 600 (third body 610) is maintained.

In a state where the second tool assembly 500 is inserted into the third body 610, when the third lever 620 is rotated by pressing the second tool key 670 to press the third key portion 623, the third elastic body 630 is compressed, and the third catching protrusion 621 escapes from the third catching groove 556. Thus, the second tool assembly 500 (the brush cover 550) is separated from the tube assembly 600 (the third body 610), and the user can pull the second tool assembly 500 from the tube assembly 600 in the direction opposite to the first direction X2 to separate the second tool assembly.

The fourth opening 612 is not exposed to the outside in a state where the second button cover 650 and the first tool button 660 are coupled to the third body 610. In a state where the second tool assembly 500 and the tube assembly 600 are coupled to each other, the second key part 523 is positioned just inside the first tool key 660, and the inside of the first tool key 660 may contact the outside of the second key part 523.

A pressing protrusion 662 protruding inward may be formed at an inner side of the first tool button 660. The pressing protrusion 662 of the first tool button 660 may be inserted into the fourth opening 612 and protrude toward the inside of the third body 610.

The user can press the second button part 523 by pressing the first tool button 660 in an inner direction, and thus the pressing protrusion 662 presses the second button part 523 and can rotate (pivot) the second lever 520 about the second rotation center part 522.

The tube assembly 600 includes a fourth elastic body 640.

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

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 key 660 and the third body 610.

As described above, even in a state where the second tool assembly 500 and the tube assembly 600 are coupled to each other, the fastening (locking) between the first tool assembly 400 and the second tool assembly 500 can be released by pressing the first tool button 660.

In a state where the second tool assembly 500 is inserted into the third body 610, when the second lever 520 is rotated by pressing the first tool key 660 to press the second key part 523, the second elastic body 530 is compressed, and the second latching protrusion 521 escapes from the second latching groove 412. Thus, the first tool assembly 400 (first body 410) is separated from the second tool assembly 500 (second body 510) and the tube assembly 600 (third body 610), and the user can separate the first tool assembly 400 by pulling the first tool assembly 400 in the direction opposite to the first direction X2 from the tube assembly 600 and the second tool assembly 500 coupled to each other.

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

The first mark 661 may be formed by printing or imprinting on an outer side surface of the first tool key 660, and the second mark 671 may be formed by printing or imprinting on an outer side surface of the second tool key 670.

In order to intuitively associate the first suction port 405, the first marking 661 may be formed of a pattern, a shape, or the like similar or identical to that of the first suction port 405. In order to intuitively associate the second suction port 505, the second flag 671 may be formed of a pattern, a form, or the like similar or identical to that of the second suction port 505.

Fig. 25A is a sectional view showing the second tool assembly 500 and the tube assembly 600, and fig. 25B is a sectional view showing a state in which the brush cover 550 in fig. 25A is moved to the rear side of the first direction X2.

In the embodiment of the present invention, the third catching protrusion 621 may catch the third catching groove 556 in a state where the brush cover 550 is moved to the front side of the first direction X2 with respect to the second body 510 in such a manner that the brush 540 is shielded by the brush cover 550. When the second tool assembly 500 is inserted into the third body 610 and the brush cover 550 is located at the first position, the third catching protrusion 621 of the third lever 620 may be inserted into the third catching groove 556 and caught. That is, the fastening of the tube assembly 600 and the second tool assembly 500 will be achieved.

In a state where the brush cover 550 is moved to the rear side of the first direction X2 with respect to the second body 510 such that the brush 540 is exposed from the brush cover 550, the third catching protrusion 621 may contact the outer side surface of the brush cover 550 in front of the third catching groove 556. When the second tool assembly 500 is inserted into the third body 610 and the brush cover 550 is located at the second position, the third catching protrusion 621 of the third lever 620 is not caught by the third catching groove 556 and is located in front of the third catching groove 556 in the first direction X2. That is, the fastening of the tube assembly 600 and the second tool assembly 500 will not be completely achieved. In this state, when the second tool assembly 500 is moved to the rear side in the first direction X2 with respect to the tube assembly 600, the tube assembly 600 and the second tool assembly 500 are separated from each other.

When the brush cover 550 is located at the second position, the brush 540 of the second tool assembly 500 may contact the inner circumferential surface of the third body 610 when the second tool assembly 500 is inserted into the third body 610, and in such a state, when the second tool assembly 500 and the tube assembly 600 are combined, the combination may not be well achieved, and the bending deformation of the brush 540 may occur. In the embodiment of the present invention, in order to avoid such a problem, the coupling between the second tool assembly 500 and the tube assembly 600 can be accomplished when the brush cover 550 is located at the first position.

Fig. 26A is a perspective view illustrating a state where the first tool assembly 400 and the second tool assembly 500 of the embodiment are separated, fig. 26B is a perspective view of the second tool assembly 500 of fig. 26A as viewed from another direction, and fig. 26C and 26D are perspective views illustrating a state where the first tool assembly 400 and the second tool assembly 500 of fig. 26A are coupled as viewed from directions different from each other.

A first guide 513 and a second guide 514 for guiding the first rotating body 450 and the second rotating body 460 to be expanded from each other may be formed at an inner side surface of the second tool assembly 500.

In one embodiment, the first guide and the second guide may be formed on an inner side 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 at an inner side surface of the brush cover 550.

The first guide 513 and the second guide 514 are formed on opposite sides of the inner side surface of the second tool assembly 500, respectively. In the inner side 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. In the inner side surface of the second tool assembly 500, when the first guide 513 is formed at the opposite front side of the third direction Z2, the second guide 514 may be formed at the opposite rear side of the third direction Z2.

The first guide 513 and the second guide 514 protrude inward from the inner side surface of the second tool assembly 500, respectively. Further, the first guide 513 and the second guide 514 may be respectively configured in a sharp wedge shape protruding 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 corner 451a and the third corner 461a and opens the first corner 451a and the third corner 461a to each other, and the second guide 514 enters between the second corner 451b and the fourth corner 461b and opens the second corner 451b and the fourth corner 461b to each other.

The first guide 513 and the second guide 514 spread the first half pipe 451 and the second half pipe 461 apart from each other and maintain a state of being closely attached to the inner side surface of the second tool assembly 500.

While specific embodiments of the present invention have been described and illustrated, the present invention is not limited to the described embodiments, and those skilled in the art will appreciate that various modifications and variations can be made to the present invention without departing from the spirit and scope of the utility model. Therefore, the scope of the present invention should be determined not by the embodiments described but by the technical ideas described in the claims.

Industrial applicability

The 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 cleaner body, and the present invention has a significant industrial applicability in terms of efficiently realizing the use of each tool (suction port).

Claims (10)

1. A vacuum cleaner in which, in a vacuum cleaner,

the method comprises the following steps:

a cleaner body generating suction at a suction port of the body;

a suction nozzle having a basic suction port into which dust flows; and

a connection pipe located between the cleaner body and the suction nozzle and extending from the body suction port in a first direction as a direction toward the suction nozzle to transmit the suction force to the basic suction port,

further comprising:

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

and a pipe assembly fixed to a rear side of the connection pipe in the first direction and detachably fixed to the second tool assembly.

2. The vacuum cleaner of claim 1,

the first tool assembly includes:

a first body configured in a tube shape along the first direction and coaxially coupled to the body suction port;

a first lever pivotally coupled to the first body and locked to the body suction port or unlocked therefrom;

a first rotating body pivotally coupled to a front portion of the first body in the first direction about a first rotation axis, and including a first half pipe constituting a part of the first suction port; and

and a second rotating body pivotally coupled to a front portion of the first body in the first direction about a second rotation axis parallel to the first rotation axis, and including a second half pipe constituting a part of the first suction port.

3. The vacuum cleaner of claim 2,

the first tool assembly includes a first rotation spring elastically supporting the first rotating body and a second rotation spring elastically supporting the second rotating body such that the first half pipe and the second half pipe constitute the first suction port,

the first rotating body includes a first pressing portion extending to a side different from the first half pipe with reference to the first rotating shaft and protruding to an outside of the first main body,

the second rotating body includes a second pressing portion extending to a side different from the second half pipe with reference to the second rotating shaft and protruding to the outside of the first body,

the second tool assembly includes a second body configured in a tube shape along the first direction, and a front side frame of the first direction configures the second suction port, and when the second body is coupled to the first tool assembly, the second body presses the first pressing portion and the second pressing portion to open the first half tube and the second half tube.

4. The vacuum cleaner of claim 1,

the second tool assembly includes:

a second body configured in a tube shape along the first direction, and a front side frame of the first direction configures the second suction port;

a second lever pivotally coupled to the second body and locked to the first tool assembly or unlocked; and

and a brush coupled to a front side frame of the second body in such a manner as to protrude toward a front side of the first direction compared to the second body.

5. The vacuum cleaner of claim 1,

the second tool assembly includes:

a second body configured in a tube shape along the first direction, and a front side frame of the first direction configures the second suction port;

a second lever pivotally coupled to the second body and locked to the first tool assembly or unlocked;

a brush cover configured in a tube shape along the first direction, having a plurality of brush accommodating spaces partitioned from each other along a front side frame thereof, and coupled to the second body to be movable in the first direction or a direction opposite to the first direction; and

and brushes fixed along the front side frame of the second body in a manner of protruding to the front side of the first direction compared with the second body and accommodated in the brush accommodating spaces, wherein when the brush cover moves to the rear side, the brushes protrude to the front side of the brush cover.

6. The vacuum cleaner of claim 1,

the tube assembly includes:

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

and a third lever pivotally coupled to the third body and locked to or unlocked from the second tool assembly.

7. The vacuum cleaner of claim 6,

the second tool assembly includes:

a second body configured in a tube shape along the first direction, and a front side frame of the first direction configures the second suction port;

a second lever pivotally coupled to the second body and locked to the first tool assembly or unlocked; and

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

the tube assembly includes:

a first tool button coupled to the third body so as to be capable of reciprocating in a direction orthogonal to the first direction, and configured to rotate the second lever in a direction in which the second lever is released from the locking; and

and a second tool button coupled to the third body so as to be capable of reciprocating in a direction orthogonal to the first direction, and configured to rotate the third lever in a direction in which the locking is released.

8. The vacuum cleaner of claim 1,

the body suction port is configured in a pipe shape along the first direction, and a first locking groove is formed on the outer side surface of the body suction port,

the first tool assembly includes:

a first body configured in a tube shape along the first direction, and inserted into the body suction port inside a rear side in the first direction;

a first lever pivotally coupled to the first body with reference to a first lever shaft in a second direction orthogonal to the first direction, and having a first locking protrusion protruding inward of the first body to be inserted into the first locking groove and locked;

a first elastic body elastically supporting the first lever so that the first locking protrusion protrudes toward the inside of the first body;

a first rotating body pivotally coupled to a front side of the first body in the first direction about a first rotation axis in a third direction orthogonal to the first direction and the second direction, and including a first half pipe constituting a part of the first suction port; and

and a second rotating body pivotally coupled to a front side of the first body in the first direction about a second rotation axis parallel to the first rotation axis, and including a second half pipe constituting a part of the first suction port.

9. The vacuum cleaner of claim 1,

the first tool assembly includes a first body configured in a tube shape along the first direction, coaxially coupled to the body suction port, and having a second locking groove formed on an outer side surface thereof,

the second tool assembly includes:

a second body configured in a tube shape along the first direction, the second body having a front frame in the first direction constituting the second suction port, and the first body being inserted into a rear interior of the second body;

a second lever pivotally connected to the second body with a second lever axis in a second direction orthogonal to the first direction as a reference, and having a second locking protrusion protruding inward of the second body and inserted into the second locking groove to be locked;

a second elastic body elastically supporting the second lever so that the second locking protrusion protrudes toward the inside of the second body;

a brush fixedly coupled to a front side frame of the second body in such a manner as to protrude toward a front side of the first direction compared to the second body; and

a brush cover configured in a tube shape along the first direction, a third locking groove formed on an outer side surface of the brush cover, and coupled to the second body so as to be movable in the first direction or a direction opposite to the first direction to expose or shield the brush,

the tube assembly includes:

a third body configured in a tube shape along the first direction, fixed to a rear side of the connection tube in the first direction, and into which the first tool assembly and the second tool assembly are inserted;

a third lever pivotally connected to the third body with a third lever axis in the second direction as a reference, and having a third locking protrusion protruding inward of the third body to be inserted into the third locking groove and locked; and

and a third elastic body elastically supporting the third lever such that the third catching protrusion protrudes toward the inside of the third body.

10. The vacuum cleaner of claim 1,

the second tool assembly includes:

a second body configured in a tube shape along the first direction, a first fixing groove and a second fixing groove spaced apart from each other in the front-rear direction along the first direction being formed on an outer surface of the second body, and a front frame in the first direction constituting the second suction port;

a second lever pivotally coupled to the second body and locked to the first tool assembly or unlocked;

a brush coupled to a front side frame of the second body in such a manner as to protrude toward a front side of the first direction compared to the second body;

a brush cover configured in a tube shape along the first direction, and coupled to the second body to be movable in the first direction or a direction opposite to the first direction so as to expose or shield the brush; and

and a cover lever pivotally coupled to the brush cover, and having a fixing protrusion inserted into the first fixing groove or the second fixing groove and locked thereto.

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