CN108601493B

CN108601493B - Vacuum cleaner with a vacuum cleaner head

Info

Publication number: CN108601493B
Application number: CN201780011005.6A
Authority: CN
Inventors: 孙正圭; 南普铉; 朴材容; 裵世焕
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2016-02-29
Filing date: 2017-02-27
Publication date: 2021-09-07
Anticipated expiration: 2037-02-27
Also published as: EP3424388B1; CN207384195U; JP2019504715A; RU2696639C1; CN108601493A; TWI626032B; AU2017227407A1; EP3424388A1; AU2017227407B2; EP3424388A4; TW201731442A

Abstract

The present invention provides a vacuum cleaner, the vacuum cleaner of an embodiment of the present invention includes: a cleaner body provided with a suction motor for generating suction force; and a suction hose, which is communicated with the cleaner body and sucks air containing dust; the cleaner body includes: a body portion; a dust collecting barrel provided in the body part, having a suction port through which air sucked through the suction hose flows and a storage space for collecting dust; and a cover member provided with a connector having one side connected with the suction hose, the cover member selectively shielding at least a portion of the dust collecting tub; the connector is aligned in a manner of corresponding to the air inflow direction of the suction inlet when the cover component shields one side of the dust collecting barrel.

Description

Vacuum cleaner with a vacuum cleaner head

Technical Field

The present invention relates to a vacuum cleaner.

Background

Generally, a vacuum cleaner is an apparatus that sucks dust, foreign substances, and the like present on a surface to be cleaned by a suction motor provided in a main body and filters the dust, foreign substances, and the like from the main body.

The vacuum cleaner as described above can be distinguished as: an upright (up-right) type vacuum cleaner in which a suction nozzle is connected to a body and moves together with the body, and a canister type vacuum cleaner in which a suction nozzle is connected to a body through an extension pipe, a handle, a hose, etc.

Korean laid-open patent publication No. 10-2012-0004100 (published: 1/12/2012) discloses a horizontal vacuum cleaner.

The prior art vacuum cleaner disclosed in the prior art document includes: a suction motor disposed at the body and generating a suction force; a dust separating device for separating dust and air sucked by the suction force of the suction motor; and a dust collecting container for trapping the dust separated in the dust separating apparatus.

The air containing dust flows into the inflow pipe arranged on the body through the suction nozzle and the connecting part under the action of the suction force of the suction motor. The air is sucked into the interior of the dust separating apparatus through an inflow pipe. In the process that the air sucked into the dust separating device flows in the dust separating device, the dust contained in the air is separated. The dust separated in the dust separating device is collected in the dust collecting container through a dust discharging part.

In addition, the inflow pipe extends upward inside the body from the lower portions of the dust separating device and the dust collecting container toward the inlet of the dust separating device (see fig. 3 of the prior art). With the above-described structure, in the vacuum cleaner of the related art, the flow loss is generated by friction in the process of the sucked air flowing through the inflow pipe. Thereby, the amount of air flowing into the dust separating apparatus will be reduced, and the suction force of the vacuum cleaner will be reduced.

Disclosure of Invention

Problems to be solved by the invention

The invention aims to provide a vacuum cleaner, which can minimize the air flow loss in the cleaner body.

Another object of the present invention is to provide a vacuum cleaner in which a battery can be easily mounted on a cleaner body.

Another object of the present invention is to provide a vacuum cleaner in which a cleaner body is supported at two points by moving wheels.

Another object of the present invention is to provide a vacuum cleaner which improves traveling stability of a cleaner body.

Another object of the present invention is to provide a vacuum cleaner which prevents a cleaner body from being overturned backward.

Technical scheme for solving problems

In order to minimize the flow loss of air inside the cleaner body, a vacuum cleaner according to an aspect of the present invention includes: dust catcher body and suction hose, the dust catcher body includes: a body portion; a dust collecting barrel provided in the body part and having a suction port for sucking air through the suction hose and a storage space for collecting dust; and a cover member provided with a connector having one side connected with the suction hose, the cover member selectively shielding at least a portion of the dust collecting tub; the connector is aligned in a manner of corresponding to the air inflow direction of the suction inlet when the cover component shields one side of the dust collecting barrel.

A vacuum cleaner according to another aspect of the present invention includes: dust catcher body and suction hose, the dust catcher body includes: a dust collecting barrel provided with a suction inlet connected with the suction hose and a storage space for storing dust flowing in through the suction inlet; and a cover member combined with the dust collecting tub; the cover member is provided with a connector for connecting the suction hose and the dust collection tub, and air flowing into the suction port from the connector is guided downward and moves toward the storage space.

A vacuum cleaner according to still another aspect of the present invention includes: dust catcher body and suction hose, the dust catcher body includes: a dust collecting barrel provided with a suction inlet for air to flow in; and a cover member combined with the dust collecting tub; the cover member is provided with a connector, one side of the connector is connected with the suction hose, the other side of the connector is connected with the suction inlet, and the suction inlet is arranged on the upper surface of the dust collection barrel.

A vacuum cleaner according to still another aspect of the present invention includes: the method comprises the following steps: a cleaner body provided with a suction motor for generating suction force; a suction hose communicating with the cleaner body and sucking air containing dust; a dust collecting barrel arranged in front of the cleaner body, wherein a part of the front of the dust collecting barrel is exposed to the outside; a cover member rotatably mounted on the cleaner body, the cover member covering the dust collection tub from above; a suction port formed in the dust collection tub in an open manner and shielded by the cover member, the suction port forming a passage through which air containing dust sucked through the suction hose flows into the dust collection tub; and a connector formed on the cover member in an opening manner on the same extension line as the suction port, the suction hose being connected to the connector to form a passage extending to the suction port.

A first sealing portion is formed at an open end of the connector, a second sealing portion is formed at an open end of the suction port opposite to the first sealing portion, the second sealing portion is formed in a shape corresponding to the first sealing portion, and the first sealing portion and the second sealing portion are coupled to each other when the cover member is closed, thereby maintaining airtightness between the connector and the suction port.

A first seal portion formed in an inclined manner is formed at an end portion of the connector having an opening, a second seal portion is formed at an end portion of the suction port having an opening, the end portion being opposite to the first seal portion, the second seal portion being inclined at the same angle as the first seal portion, and the first seal portion and the second seal portion are brought into close contact with each other when the cover member is closed.

The first sealing portion and the second sealing portion have slopes such that the lower end thereof protrudes toward the front side to which the suction hose is connected.

The first sealing portion and the second sealing portion are made of an elastic material, and the first sealing portion and the second sealing portion are respectively mounted on the connector and the suction port.

The connector and the end of the suction hose connected to the connector and the suction port are aligned on the same extension line.

The cover member receives an upper portion of the dust collection tub in a closed state to restrain the dust collection tub.

The dust collector body is provided with a placing part extending forwards, the placing part supports the lower surface of the dust collecting barrel from the lower part, the lower end and the upper end of the dust collecting barrel are restrained by the placing part and the cover component, and the dust collecting barrel is exposed to the outside through the space between the placing part and the cover component.

A vacuum cleaner according to still another aspect of the present invention includes: a cleaner body provided with a suction motor; the cleaner body includes: a body portion; a moving wheel for moving the body part; and a battery detachably provided at the rear of the main body and capable of supplying power to the main body; the main body is rotatable with reference to a rotation center of the moving wheel, and when the battery is separated from the cleaner body, a weight center of the main body is located forward with reference to a vertical line passing through the rotation center of the moving wheel.

Effects of the invention

In the present invention, since the connector is aligned in a manner of being consistent with the air inflow direction of the suction inlet of the dust collecting barrel, the resistance acting on the flowing air is reduced, thereby the flow loss can be minimized. As a result, the suction efficiency of the vacuum cleaner can be improved by reducing the flow loss of air.

Further, the cover member only shields a part of the dust collecting bucket, so that the dust collecting bucket is exposed to the outside, thereby enabling a user to easily confirm the amount of dust collected in the dust collecting bucket.

The first sealing part forming one end of the connector formed on the cover member and the second sealing part forming one end of the suction port formed on the dust collecting barrel have inclined surfaces corresponding to each other, so that the first sealing part and the second sealing part are closely attached to each other without interference when the cover member rotates, and thus, the structure of air-tightness can be realized.

In particular, the first sealing part and the second sealing part are made of elastic materials and can be pressed and fixed with each other, and in a state that the cover member is closed, the first sealing part and the second sealing part can be pressed and tightly attached, so that air flowing into the suction port through the connector is prevented from leaking, and the suction performance of the vacuum cleaner can be improved.

Further, by providing a sealing member between the connector and the suction port of the dust bucket, airtightness between the connector and the dust bucket can be ensured.

In addition, the distance between the end of the suction hose and the suction inlet of the dust collecting barrel is short, which is favorable for ensuring the space inside the cleaner body.

Further, the suction hose, the connector and the suction port can be aligned on the same extension line, so that the flow resistance can be minimized in the process of flowing the air discharged from the suction hose to the suction port.

Further, since the end of the suction hose is inserted into the connector and extends to a position close to the suction port, the air discharged from the suction hose can be efficiently introduced into the suction port.

In the vacuum cleaner of the present invention, the weight center is positioned in front and rotated forward in a state that the battery is separated from the main body, so that the battery can be easily combined with the cleaner main body.

Also, the cleaner body is supported at two points by a pair of moving wheels, so that it can easily move across obstacles such as thick carpets, quilts, etc.

In addition, since the battery is mounted at the lower side of the cleaner body, the weight center of the cleaner body moves downward, thereby improving the driving stability of the cleaner body.

Further, the support portion is provided behind the main body portion, so that the main body portion can be prevented from turning backward.

Drawings

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

Fig. 2 is a view showing a state where the cleaner body of fig. 1 is separated from the suction device.

Fig. 3 is a view illustrating a state in which the dust collection tub of fig. 2 is separated from the body part.

Fig. 4 is a perspective view of the cleaner body with the cover member open.

Fig. 5 is a longitudinal sectional view of fig. 5.

Fig. 6 is a perspective view of the cleaner body when the cover member is closed.

Fig. 7 is a longitudinal sectional view of fig. 6.

Fig. 8 is a perspective view showing a state where the cleaner body is coupled to the suction device.

Fig. 9 is a longitudinal sectional view of fig. 8.

Fig. 10 is a view showing a state in which a main body of a cleaner body according to another embodiment of the present invention is inclined forward.

Fig. 11 is a view showing a state where the main body is inclined rearward.

Fig. 12 is a diagram showing a structure of a support portion of another embodiment of the present invention.

Fig. 13 is a view sequentially showing a state where a battery is coupled to the cleaner body.

Fig. 14 is a view sequentially showing a state where the battery is separated from the cleaner body.

Detailed Description

Hereinafter, some embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the case where reference numerals are given to constituent elements in respective drawings, the same reference numerals will be given to the same constituent elements as much as possible even if they are shown in different drawings.

Also, in describing the structural elements of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish one structural element from another structural element, and are not intended to limit the nature, order, or sequence of the corresponding structural elements. It should be noted that when a structural element is referred to as being "connected", "coupled" or "coupled" to another structural element in the specification, the structural element may be directly connected or coupled to the other structural element, but the case where another structural element is "connected", "coupled" or "coupled" between the structural elements may also be included.

Referring to fig. 1, a vacuum cleaner 1 of an embodiment of the present invention includes a cleaner body 10 and a suction device 20.

The cleaner body 10 is provided with a suction motor for generating suction force. The suction device 20 may guide air containing dust toward the cleaner body 10 while the suction motor is driven and generates suction force.

The inhalation device 20 may comprise: a suction unit 21 for sucking dust on a cleaning surface (floor surface, for example); a

connection part

22, 23, 24 for connecting the suction part 21 to the cleaner body 10. The

connection portions

22, 23, 24 may include: an extension pipe 24 connected to the suction part 21; a handle 22 connected to the extension pipe 24; a suction hose 23 for connecting the handle 22 to the body 10.

The cleaner body 10 includes a body portion 110 for forming an external appearance as a whole.

The cleaner body 10 may further include a moving wheel 102 rotatably coupled to the body 110. The moving wheels 102 may be provided in a pair and may be coupled to both sides of the body part 110, respectively.

The body 110 may be provided with a grip 104(grip) for a user to hold. The user can hold the handle portion 104 when it is desired to lift or tilt the body portion 110.

The cleaner body 10 may further comprise a battery 106 for supplying power.

The battery 106 may be detachably coupled to the body part 110. In the case where the battery 106 is coupled to the body part 110, the battery 106 may be integrated with the body part 110. Thereby, the battery 106 will move together with the body portion 110.

The battery 106 may supply all the power required for the driving of the vacuum cleaner 1. The battery 106 may be a secondary battery that can be charged and discharged. A power line (not shown) for supplying a commercial power source may be additionally connected to the battery 106.

The cleaner body 10 further includes a dust collection tub 120 for storing dust sucked through the suction device 20. The dust collection tub 120 may be formed in a cylindrical shape as shown in the drawings, but the present invention is not limited to such a shape.

The dust collecting tub 120 may be provided with a suction port 124 for sucking dust. The suction inlet 124 may be disposed at an upper surface of the dust collection tub 120 as shown in the drawing. Accordingly, the air flowing into the suction port 124 is guided downward and moves to the storage space.

The dust collecting tub 120 may be detachably mounted to the body part 110. The dust collecting tub 120 may have an inner portion formed to collect dust flowing into the suction port 124.

The dust collecting tub 120 may be disposed in front of the body 110, and at least a portion of a side surface of the dust collecting tub 120 may be made of a transparent material, so that a user can confirm dust collected in the storage space.

The vacuum cleaner 1 may include a dust separating part (not shown) for separating air and dust sucked in the suction device 20 from each other. The dust separating part may be manufactured as an article additional to the dust collection tub 120 or as a module with the dust collection tub 120. For example, the dust separating part may be provided inside the dust collection tub 120, and the dust separated from the dust separating part may be collected below the dust collection tub 120.

Fig. 2 is a view illustrating a state where the cleaner body of fig. 1 is separated from the suction device, and fig. 3 is a view illustrating a state where the dust collection tub of fig. 2 is separated from the body part.

Referring to fig. 2 and 3, the cleaner body 10 may include a connector 134 connected to the suction device 20. The connector 134 may be directly connected to the suction hose 23, and air containing dust may flow into the connector 134. That is, one side of the connector 134 is coupled to the suction hose 23, and the other side is coupled to the suction port 124. Thereby, the connector 134 connects the suction hose 23 and the suction port 124.

The connector 134 may communicate with the dust collection tub 120. Thereby, the air flowing in the suction hose 23 may flow into the dust tub 120 through the connector 134.

A suction port 124 through which dust flows may be provided at one side of the dust collection tub 120. The suction inlet 124 may be provided at an upper portion (or an upper surface portion) of the dust collection tub 120 as shown in the drawings.

The suction port 124 may be formed to face forward. The front is a portion where the suction hose 23 is located with respect to the cleaner body 10.

Also, as shown, the connector 134 may be disposed at an upper portion of the dust collection tub 120. By disposing both the suction port 124 and the connector 134 at the upper portion of the dust collection tub 120, the length of the flow path of the air flowing in from the suction hose 23 can be minimized.

The suction hose 23 may be provided with

fitting portions

231, 232, 233(fitting) for improving airtightness when being coupled with the connector 134.

The sealing

portions

231, 232, and 233 allow the suction hose 23 to be attached to and detached from the connector 134. The sealing

portions

231, 232, 233 may be constructed in a multi-sectional structure as shown.

The sealing

parts

231, 232, 233 may include a first sealing part 231, a second sealing part 232, and a third sealing part 233. The first and

second sealing portions

231 and 232 are inserted into the connector 134. The first and

second sealing portions

231 and 232 may be collectively referred to as an insertion portion, and may be referred to as a first insertion portion and a second insertion portion, respectively. The third sealing portion 233 is disposed outside the connector 134. The third sealing portion 233 is in contact with an end of the connector 134 and can limit an insertion depth of the insertion portion.

The cleaner body 10 further includes a cover member 130 movably provided to the body 110.

The cleaner body 10 may further include a coupling member 13 coupling the cover member 130 and the body 110. For example, the cover member 130 is rotatably connected to the main body 110 by the connecting member 13.

The connector 134 may be provided at the cover member 130. Thereby, the connector 134 can move together with the cover member 130.

The cover member 130 may shield at least one side of the dust collection tub 120. The cover member 130 may be combined with the dust collection tub 120 while shielding at least one side of the dust collection tub 120. The cover member 130 may be combined with the dust collection tub 120 in a state that it is closed, and may be separated from the dust collection tub 120 in a state that the cover member 130 is opened.

For example, the cover member 130 may be coupled to an upper portion of the dust collection tub 120.

As shown in fig. 3, the dust collection tub 120 is separable from the body part 110.

A seating portion 108 for seating the dust collection tub 120 may be provided at the body portion 110. As shown in the drawing, the settling part 108 may be disposed at a lower portion of the dust collection tub 120. A coupling portion (not shown) for coupling with a bottom surface portion of the dust collection tub 120 may be formed at the seating portion 108.

The bottom of the dust collecting tub 120 may be referred to as one side of the dust collecting tub 120, and the top of the dust collecting tub 120 may be referred to as the other side of the dust collecting tub 120. The cover member 130 is coupled to the dust collection tub 120 at an upper side of the dust collection tub 120, and thus, the cover member 130 may be considered to be disposed at a position opposite to the installation part 108.

Hereinafter, the state in which the cover member 130 is opened and the state in which the cover member is closed will be specifically described.

Fig. 4 is a perspective view of the cleaner body when the cover member is opened, fig. 5 is a longitudinal sectional view of fig. 5, fig. 6 is a perspective view of the cleaner body when the cover member is closed, and fig. 7 is a longitudinal sectional view of fig. 6.

Referring to fig. 4 to 7, when the cover member 130 is opened, a user may grip the handle portion 104 and lift the cover member 130 upward or rotate it rearward. Conversely, when the cover member 130 is closed, the user may put down the cover member 130 to the lower side or rotate it toward the front.

In case that the cover member 130 is opened, the user can take out the dust collection tub 120 to the outside. At this time, the suction port 124 of the dust collection tub 120 is exposed to the outside.

At least one side of the dust collection tub 120 is shielded by the cover member 130 in a state where the cover member 130 is closed. When one side of the dust collection tub 120 is shielded by the cover member 130, the suction port 124 will also be shielded by the cover member 130.

However, since the cover member 130 does not shield the side surface of the dust collection tub 120, the side surface of the dust collection tub 120 is exposed to the outside. Accordingly, since at least a portion of the side surface of the dust collection tub 120 is made of a transparent material, a user can visually check the amount of dust collected in the storage space inside the dust collection tub 120.

When the suction port 124 is shielded by the cover member 130, the suction port 124 will come into contact with the outlet portion of the connector 134. Thereby, the connector 134 communicates with the suction port 124. At this time, the connector 134 may be aligned in such a manner as to coincide with the inflow direction of air in the suction port 124.

A first space 135 is formed inside the connector 134, and a second space 125 is formed inside the suction port 124. When the cover member 130 is closed, the first space part 135 and the second space part 125 are directly connected.

When the cover member 130 is closed, the rear end of the connector 134 and the front end of the suction opening 124 are in close contact with each other to form an airtight state, and the air passing through the connector 134 can flow into the dust collection tub 120 through the suction opening 124 without leaking to the outside.

Hereinafter, a more detailed description will be given, and for convenience of description, a direction (left side in fig. 5) in which the suction hose 23 is connected is defined as a front direction, and a direction in which the dust collection tub 120 is in contact with is defined as a rear direction (right side in fig. 5).

The open rear end of the connector 134 may extend toward the inside of the cover member 130, and when the cover member 130 is closed, it may extend to a position corresponding to the open front end of the suction port 124.

A first sealing portion 136 may be formed at a rear end of the connector 134, and a second sealing portion 126 may be formed at a front end of the suction port 124. The first and second sealing

parts

136 and 126 may be formed in corresponding shapes at positions facing each other, and may be configured in a shape to be closely attached to and coupled with each other when the cover member 130 is closed.

More specifically, the first sealing portion 136 may be formed to be inclined, and may be formed to have an inclination toward the front from the upper side toward the lower side. The second sealing portion 126 may be formed to be inclined in the same direction as the first sealing portion 136, and may be formed to have an inclination toward the front from the upper side toward the lower side.

In addition, the directions of the inclined surfaces of the first and second sealing

parts

136 and 126 may be formed to correspond to the rotational direction in which the cover member 130 is opened and closed. The directions of the inclined surfaces of the first and second sealing

parts

136 and 126 may be formed to correspond to a tangent of a rotation radius of the cover member 130.

That is, the rotation center of the cover member 130 is located at the rear end of the cover member 130, and the first and

second sealing portions

136 and 126 may be inclined to have the same slope as the tangent line of the rotation radius of the cover member 130 so that the first and

second sealing portions

136 and 126 located apart from the rotation center of the cover member 130 are naturally slid and closely attached to each other during the rotation of the cover member 130.

With the inclined structure of the first sealing portion 136 and the second sealing portion 126, the cover member 130 can be sealed effectively without interference between the connector 134 and the suction port 124 during the rotational operation of closing the cover member 130.

The interior of the connector 134 and the interior of the suction port 124 may be formed with a first space 135 and a second space 125, respectively, and in this case, the rear end of the first space 135 and the front end of the second space 125 may have sizes corresponding to each other. Further, the first seal portion 136 and the second seal portion 126

It may be formed to have the same inclined surface, and thus, the first and

second space parts

135 and 125 may have a structure to be completely communicated in a state where the cover member 130 is closed.

In addition, the first sealing portion 136 and the second sealing portion 126 may be formed together at the time of molding the connector 134 and the suction port 124. That is, the first sealing portion 136 and the second sealing portion 126 may be formed of plastic materials, respectively, and may be integrally molded with the connector 134 and the suction port 124.

Sealing members for air-tightness may be installed at the first and second sealing

parts

136 and 126 as needed. The sealing member may be formed at the periphery of the ends of the first and second sealing

parts

136 and 126, which are open, and may be installed at more than one of the first and second sealing

parts

136 and 126. The sealing member may be composed of a material having elasticity such as rubber, silicone, sponge, or the like. Thereby, when the lid member 130 is closed, the first sealing portion 136 and the second sealing portion 126 are completely hermetically sealed by the compression of the sealing member. And, elasticity is provided when the cover member 130 is closed or opened, thereby buffering an impact when the cover member 130 is closed and performing initial rotation more easily when the cover member 130 is opened.

Of course, the first and second sealing

parts

136 and 126 may be formed of an additional material having elasticity as needed. That is, the first and second sealing

parts

136 and 126 may be fixedly installed at the rear end of the connector 134 and the front end of the suction port 124 after being additionally molded by a material having elasticity, such as rubber, silicon, sponge, etc.

At this time, the first and second sealing

parts

136 and 126 may be installed in an inclined manner, or surfaces thereof contacting each other may be formed in an inclined manner. The first and second sealing

parts

136 and 126 having elasticity may have a predetermined thickness so as to be compressed with each other in a state where the cover member 130 is closed. The first sealing portion 136 and the second sealing portion 126 formed of an elastic material allow the first sealing portion 136 and the second sealing portion 126 to be completely airtight, and allow the cover member 130 to be opened and closed with ease while absorbing impact.

Further, in the case where the first seal portion 136 and the second seal portion 126 are formed of an elastic material, the first seal portion 136 and the second seal portion 126 are pressed and attached to each other when the lid member 130 is closed. Accordingly, in the state where the cover member 130 is closed, the first sealing portion 136 and the second sealing portion 126 can be brought into close contact in a mutually compressed state, and the air-tightness between the connector 134 and the suction port 124 can be further improved.

Hereinafter, a case where the suction hose 23 is attached to the connector 134 will be described.

Fig. 8 is a perspective view showing a state where the cleaner body is coupled to the suction device, and fig. 9 is a longitudinal sectional view of fig. 8.

Referring to fig. 8 and 9, the suction hose 23 is connected to the connector 134. The front end (left side in fig. 9) of the connector 134, to which the suction hose 23 is connected, may be defined as an inlet portion, and the rear end (right side in fig. 9) of the discharged air may be defined as an outlet portion. The outlet portion of the connector 134 may face and contact the suction port 124.

At this time, the outlet portion of the connector 134 may communicate with the suction port 124, and the first sealing portion 136 of the connector 134 and the second sealing portion 126 of the suction port 124 may be closely attached to each other, so that the connector 134 and the suction port 124 may be in a completely communicated state.

In detail, the air discharged from the suction hose 23 may sequentially flow into the dust collection tub 120 through the first and

second space parts

135 and 125. A flow path connecting the first and

second space portions

135 and 125 to the dust collecting tub 120 may be defined as a suction flow path F.

As shown in the drawing, the air flows into the suction port 124 from the connector 134, and then is guided downward to move into the storage space.

The suction flow path F can be divided into a first flow path defined by the first space section 135 and a second flow path defined by the second space section 125.

When the connector 134 is connected to the suction port 124, the first space 135 and the second space 125 are connected to each other, thereby forming one flow path connecting the first flow path and the second flow path.

In the above state, the first sealing part 136 and the second sealing part 126 are in close contact with each other, the flow paths are connected in a straight line, and the suction hose 23 is also attached to the connector 134 in a straight line, so that the air flowing in through the suction hose 23 can flow in a straight line state toward the dust collection tub 120 at the shortest distance.

As described above, the air tightness between the suction hose 23 and the connector 134 can be maintained by the sealing

parts

231, 232, and 233.

The first, second, and

third sealing portions

231, 232, and 233 may be increased in diameter in this order. Thereby, a step is generated between the first sealing part 231 and the second sealing part 232, and a step is also generated between the second sealing part 232 and the third sealing part 233.

The first and second sealing

parts

231 and 232 are inserted into the first space part 135.

The connector 134 may be provided with

boss portions

134a, 134 b. At least a part of the sealing

parts

231, 232, 233 can be locked by the

boss parts

134a, 134b to restrict the insertion range. Further, the

boss portions

134a and 134b are in surface contact with the sealing

portions

231, 232, and 233, so that airtightness between the sealing

portions

231, 232, and 233 and the first space portion 135 can be improved.

The

boss portions

134a, 134b may include a first boss portion 134a and a second boss portion 134 b.

The first boss portion 134a may be provided inside the first space portion 135. An end of the second sealing portion 232 may contact the first boss portion 134 a.

The second boss portion 134b may be disposed at an outer side of the connector 134. An end of the third sealing portion 233 may contact the second boss portion 134 b.

The suction hose 23 may be aligned in line with the air flow direction in the first space part 135. This reduces the resistance acting on the air discharged from the suction hose 23 and flowing into the first space portion 135.

As described above, in the vacuum cleaner 1 according to the present invention, the suction hose 23, the connector 134, and the suction port 124 are arranged in a row, and therefore, the resistance acting on the air discharged from the suction hose 23 is minimized. The boss portion 134a of the suction hose 23 may extend to a position close to the suction port 124 in a state of being inserted into the connector 134. Thereby, the suction hose 23 is aligned with the suction port 124 inside the connector 134. Thereby, the air discharged from the suction hose 23 can directly flow toward the suction port 124.

Also, the first and

second sealing portions

136 and 126 formed on the connector 134 and the suction port 124 can be closely attached to each other in an inclined state, so that an airtight state is effectively maintained, and thus leakage of air can be prevented.

This minimizes the loss of the air flow inside the cleaner body 10, and as a result, improves the suction efficiency of the vacuum cleaner 1.

The present invention can be implemented in various other embodiments in addition to the aforementioned embodiments.

In the structure of other embodiments of the present invention, the remaining structure excluding a part of the structure will be the same as the foregoing embodiments, the same names will be used for the same structure, and detailed description thereof will be omitted.

Fig. 10 is a view showing a state in which a main body of a cleaner body according to another embodiment of the present invention is inclined forward. Fig. 11 is a view showing a state where the main body is inclined rearward. Fig. 12 is a diagram showing a structure of a support portion according to another embodiment of the present invention.

Referring to fig. 10 to 12, the cleaner body 1000 includes a body portion 1110, a moving wheel 1120, and a battery 1130.

The body portion 1110 may be provided with a dust collection tub 1105 for storing dust sucked through the suction device 1160. The pair of moving wheels 1120 may be coupled to both sides of the body part 1110, respectively. The battery 1130 may be detachably coupled to the body part 1110.

In the cleaner body 1000, a portion where the connector 1103 is disposed may be defined as a front portion and a portion where the battery 1130 is disposed may be defined as a rear portion with reference to a vertical line V passing through a rotation center of the moving wheel 1120. The forward rotation of the main body 1110 means that the main body 1110 rotates counterclockwise in the drawing (see fig. 10), and the backward rotation of the main body 1110 means that the main body 1110 rotates clockwise (see fig. 11).

The cleaner body 1000 may further include a driving part for driving the moving wheel 1120. The cleaner body 1000 may control the driving of the moving wheel 1120 by the control unit based on detection information of a detection unit for detecting the movement of the cleaner body 1000.

In the case where the sensing part is in an OFF (OFF) state, the moving wheel 1120 may not be driven. In this case, the body part 1110 is inclined according to the position of the weight center. For example, when the weight center of the main body 1110 is located in front of a vertical line V passing through the rotation center of the moving wheel 1120, the main body 1110 is inclined forward as shown in fig. 10, and when the weight center of the main body 1110 is located behind the vertical line V, the main body 1110 is inclined rearward as shown in fig. 11.

When the detecting portion is turned ON (ON), the control portion may control the driving of the moving wheel 1120 so that the weight center of the body portion 1110 is positioned ON a vertical line V passing through the rotation center of the moving wheel 1120. In this case, as shown in fig. 11, the bottom surface B of the body 1110 may be spaced apart from the floor surface G.

The cleaner body 1000 may further include a rear wheel unit 1140. The rear wheel unit 1140 is disposed behind the bottom surface of the main body 1110, and performs a function of restricting a backward inclination angle of the main body 1110.

The rear wheel unit 1140 may further include an extension 1144. An auxiliary wheel 1142 may be rotatably coupled to one side of the extension portion 1144. The other side of the extension 1144 can be rotatably connected to the body 1110 via the shaft 1146. In addition, the extension 1144 can rotate upward or downward within a-a'.

The rear wheel unit 1140 may further include an elastic member 1150. For example, the elastic member 1150 may be a torsion spring. One end 1152 of the elastic member 1150 may be supported by the body portion 1110 and the other end 1153 of the elastic member 1150 may be supported by the extension 1144. The elastic member 1150 applies an elastic force to rotate the extension 1144 clockwise in the drawing.

When the main body 1110 is inclined forward to the maximum extent, the front portion of the bottom surface B of the main body 1110 may contact the floor surface G. This can limit the maximum rotation angle to the front of the main body 1110.

Conversely, when the body portion 1110 is inclined rearward, the rear wheel unit 1140 may contact the floor surface G. This can limit the maximum rotation angle to the rear of the main body 1110. This prevents the main body 1110 from being overturned forward or backward.

When the main body 1110 is rotated to the maximum rearward, the bottom surface B of the main body 1110 and the floor surface G may form a predetermined angle θ. In this case, the angle θ between the bottom surface B of the main body 1110 and the floor surface G may be approximately 17 ° to 20 °.

A cover 1131 may be provided over the battery 1130. The cover 1131 may be exposed to the outside in a state where the battery 1130 is mounted on the main body 1110. Thus, the cover 1131 may form at least a portion of the profile of the body portion 1110. The user can separate the battery 1130 from the main body 1110 or couple the battery 1130 to the main body 1110 without disassembling the main body 1110.

The process of removing the battery 1130 from the body portion 1110 will be described in detail below. However, the following description is limited to the case where the weight center of the main body 1110 is located forward when the battery 1130 is removed from the main body 1110, and the weight center of the main body 1110 is located rearward when the main body 1110 is coupled with the battery 1130.

Fig. 13 (a) is a view showing a state where the battery 1130 is separated from the main body 1110, fig. 13 (b) is a view showing a state where the battery 1130 is coupled to the main body 1110, and fig. 13 (c) is a view showing a state where the main body 1110 is inclined rearward.

A battery coupling portion 1107 for coupling the battery 1130 is formed in the body portion 1110. The battery combining part 1107 may be formed by a portion of the body part 1110 being recessed.

The battery coupling portion 1107 is formed at the lower side of the body portion 1110, whereby the battery 1130 is coupled at the lower side of the body portion 1110. For example, in a state where the battery 1130 is attached to the main body 1110, the center of weight of the battery 1130 may be located below the rotation center of the moving wheel 1120.

Accordingly, when the battery 1130 is coupled to the main body 1110, the weight center of the main body 1110 moves downward, and thus, the driving stability of the cleaner body 1000 can be improved.

The battery 1130 is coupled to the lower side of the body part 1110, which is advantageous in that driving stability is improved, but since the battery 1130 needs to be coupled to the lower side of the body part 1110, a user may have inconvenience in coupling the battery 1130.

However, in a state where the battery 1130 is separated in the body part 1110, the center of weight of the body part 1110 may be positioned in front of a vertical line passing through the center of the moving wheel 1120. Thus, when the battery 1130 is separated from the main body 1110, the main body 1110 may be inclined forward with the moving wheel 1120 as a center.

As the main body 1110 is inclined forward, the front portion of the bottom surface of the main body 1110 comes into contact with the floor surface, and at this time, the battery coupling portion 1107 is inclined upward. Thereby, the user can easily couple the battery 1130.

The battery 1130 is coupled to the main body 1110 in an inclined direction by a coupling guide provided in the battery coupling portion 1107. Specifically, the insertion direction S of the battery 1130 may form an acute angle with the vertical line V and the floor surface. Accordingly, when the front portion of the bottom surface of the main body 1110 contacts the floor surface, the insertion direction S of the battery 1130 forms an acute angle with the floor surface.

When the battery 1130 is coupled to the body part 1110, the weight center of the body part 1110 may move backward. That is, in a state where the battery 1130 is coupled to the main body 1110, the center of weight of the main body 1110 may be located behind a vertical line passing through the center of the moving wheel 1120.

That is, when the battery 1130 is coupled to the main body 1110, the main body 1110 may be inclined rearward about the moving wheel 1120. At this time, the rear wheel unit 1140 is selectively brought into contact with the floor surface. At this time, the bottom surface B of the main body 1110 forms a predetermined angle θ with the floor surface G.

Specifically, (a) of fig. 14 shows a state before the battery 1130 is separated from the body portion 1110, and (b) of fig. 14 shows a state where the battery 1130 is separated from the body portion 1110.

To separate the battery 1130 from the body part 1110, a user may directly apply force to the body part 1110, thereby tilting the body part 1110 in a forward direction. Next, the user may separate the battery 1130 in a direction opposite to the insertion direction S.

When the battery 1130 is separated from the main body 1110, the weight center of the main body 1110 moves forward. Thus, the main body 1110 can maintain a forward inclined state.

As described above, in the vacuum cleaner according to the present invention, the main body 1110 is rotated backward in a state where the battery 1130 is mounted on the main body 1110, so that the bottom surface of the main body 1110 is spaced apart from the floor surface. That is, the body 1110 may be supported at two points by the moving wheel 1120 while traveling. In this case, the cleaner body 1000 can more easily cross an obstacle, and the running friction acting on the moving wheels 1120 will be reduced, and thus, the labor required when the user moves the cleaner body 1000 can be reduced.

When the battery 1130 is separated from the main body 1110, the weight center of the main body 1110 moves forward, and the main body 1110 rotates forward, so that the battery coupling portion 1107 provided at the rear lower side of the main body 1110 rises. Thereby, the user can easily couple the battery 1130 to the battery coupling portion 1107.

Industrial applicability

According to the embodiments of the present invention, the suction efficiency of the vacuum cleaner can be improved, and thus, the present invention has high industrial applicability.

Claims

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

the method comprises the following steps:

a cleaner body provided with a suction motor for generating suction force; and

a suction hose communicated with the cleaner body to suck air containing dust,

the cleaner body includes:

a body portion;

a dust collecting barrel detachably mounted on the main body and having a suction port for allowing air sucked through the suction hose to flow therein and a storage space for collecting dust; and

a cover member having a connector connected to the suction hose at one end thereof and rotatably connected to the body at the other end thereof, the cover member selectively shielding an upper surface of the dust collecting tub,

the suction inlet protrudes from the upper surface of the dust collection barrel and is formed in a manner of facing forwards, the front is the part where the suction hose is positioned by taking the dust collector body as a reference,

the connector includes:

an inlet part to which the suction hose is connected; and

an outlet part closely attached to the suction port when the cover member shields the upper surface of the dust collecting barrel,

the connector extends in a straight line state so that the air flow direction of the inlet portion and the air flow direction of the outlet portion are the same,

a first sealing portion is formed at the outlet portion,

a second seal portion is provided at the suction port in close contact with the first seal portion,

the first sealing part and the second sealing part are formed with their lower ends inclined toward a direction closer to the inlet portion of the connector than the upper end,

the inclination of the first sealing portion and the second sealing portion is formed to have the same slope as a tangent of a rotation radius of the cover member,

a first space part is formed inside the connector, a second space part is formed inside the suction port,

when the cover component rotates to shield the upper surface of the dust collecting barrel, the connector is aligned in a mode of being consistent with the air inflow direction of the suction inlet, the first sealing part and the second sealing part are tightly attached, and the first space part of the connector and the second space part of the suction inlet are connected in a straight line,

the air sucked through the suction hose flows in from the first space of the connector to the second space of the suction port along the air inflow direction by a suction flow path which is a flow path connected from the first space and the second space to the dust collection barrel, and then is guided downward and moved to the storage space of the dust collection barrel.

2. The vacuum cleaner of claim 1,

further comprising a sealing member installed at the first sealing part and the second sealing part to maintain airtightness.

3. The vacuum cleaner of claim 1,

the suction hose is provided with a close-contact portion for maintaining airtightness with the connector, and at least a part of the close-contact portion is inserted into the connector.

4. The vacuum cleaner of claim 3,

a boss portion is provided inside the connector, and the boss portion contacts a part of the sealing portion to limit an insertion range of the sealing portion.

5. The vacuum cleaner of claim 1,

when the cover component shields one side of the dust collecting barrel, the side part of the dust collecting barrel is exposed to the outside,

at least a part of the side surface of the dust collecting barrel is made of transparent material, so that the user can confirm the dust collected in the storage space.

6. The vacuum cleaner of claim 1,

further comprising:

a connecting member that rotatably connects the cover member to the body portion.

7. The vacuum cleaner of claim 1,

the cover member is provided with a handle portion to be gripped by a user.

8. The vacuum cleaner of claim 1,

the body part is provided with a placing part for placing the dust collecting barrel.