KR101903229B1 - Robot Cleaner - Google Patents

Abstract

A robot cleaner according to an embodiment of the present invention includes: a main body for filtering and discharging air sucked into the robot cleaner; A water bottle unit detachably mounted on a lower surface of the main body, the water bottle being mounted on the water bottle; A filling space formed inside the water bottle unit and storing water supplied to the water-wet bottle; A water supply unit mounted on a lower surface of the water bottle unit for supplying water in the filling space to the wet-cloth; An air inflow portion that is recessed from the upper surface of the water bottle unit into the filling space and extends toward the bottom surface of the filling space to form an inflow passage for the outside air; And an air hole which is opened at a lower end of the air inflow portion and allows outside air to flow into the inside of the filling space.

Description

Robot Cleaner {Robot Cleaner}

The present invention relates to a robot cleaner.

Generally, a vacuum cleaner is a household appliance that sucks and removes foreign matters on the floor. A vacuum cleaner in which such a cleaner is automatically cleaned is referred to as a robot cleaner. The robot cleaner sucks and removes foreign matters on the floor while moving by the driving force of the motor operated by the rechargeable battery.

On the other hand, in recent years, a robot cleaner having a configuration for wiping a floor surface as well as a suction of foreign matter has been introduced. In addition, a robot cleaner has been introduced that allows water to be supplied to the structure for wiping so that the water is not dried but can be entirely cleaned.

Korean Patent Laid-Open Publication No. 10-2015-0014351 discloses a robot cleaner which is provided with a rake plate configured to supply water to the lower rear side of a robot body and a wet cloth on a lower portion of the rake plate, Lt; / RTI >

However, in the above-described conventional technique, a water supply portion for supplying water is formed on the lower surface of the mop plate on which the wet cloth is touched, but an air hole for allowing air to flow into the water pocket is not formed.

Therefore, when the water is supplied to the mop through the water supply unit, the air can not be smoothly supplied into the water bottle. As a result, the water pressure inside the water bottle is lowered and the water supply can not be smoothly performed.

Also, even if a certain amount of air can flow through the water supply unit, since the water supply unit is formed on the lower surface of the mop plate, the scale is accumulated during use for a long period of time and the water supply unit is blocked. Accordingly, there is a problem that air can not be supplied stably and the supply of water is not smooth.

SUMMARY OF THE INVENTION An object of the present invention is to provide a robot cleaner in which a water bottle unit in which waterbaths are mounted and water to be supplied to the waterbath is stored, and water in the waterbath units can be stably supplied to the waterbath.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a robot cleaner in which an air hole for regulating the air pressure in a filling space is formed in a water bottle unit and a problem that the air hole is clogged by foreign matter or scale is prevented.

SUMMARY OF THE INVENTION An object of the present invention is to provide a robot cleaner in which a water bottle unit is formed by fusing and bonding a plurality of members so that fusion bonding can be stably performed.

A robot cleaner according to an embodiment of the present invention includes a main body for filtering and discharging air sucked into the robot cleaner; A water bottle unit detachably mounted on a lower surface of the main body, the water bottle being mounted on the water bottle; A filling space formed inside the water bottle unit and storing water supplied to the water-wet bottle; A water supply unit mounted on a lower surface of the water bottle unit for supplying water in the filling space to the wet-cloth; A guide groove formed on an upper surface of the water bottle unit and having an inclined surface extending obliquely toward one end of the water bottle unit to which the waterbath is attached; An air inflow portion that is recessed from the upper surface of the inclined surface toward the inside of the filling space and extends toward the bottom surface of the filling space to form an inflow passage for the outside air; And an air hole that is opened at a lower end of the air inlet and allows outside air to flow into the filling space.

The air hole is opened when the water level inside the filling space is lower than the distance between the lower end of the air inlet and the lower surface of the filling space, and the water level in the filling space is lower than the water level of the air inlet Characterized in that it is clogged by water when it is more than a distance apart between the filling spaces.

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The guide groove is formed at a position corresponding to the auxiliary wheel so that the auxiliary wheel is allowed to pass through the inclined surface when the water bottle unit is mounted on the lower surface of the main body. .

A shielding member mounting portion for inserting and mounting the water supply unit is formed in a lower surface of the water bottle unit. A supply hole communicating with the filling space and being shielded by the water supply unit is formed in the shield member mounting portion .

The water supply unit may include: a shielding member mounted on the shielding member mounting portion to shield the supply hole; And a water transfer member which is mounted on the shield member and absorbs the water inside the filling space and transfers the water to the wet-cloth, wherein a part of the water transfer member is exposed to the outside and is in contact with the wet-cloth, And is exposed to the inside of the filling space through the supply hole.

The water-transmitting member is formed of a fabric material.

The shielding member is formed of a material that is elastically deformable.

Further, the shielding member is formed with an insertion mounting portion protruding in a shape corresponding to the supply hole and coupled with the supply hole.

In addition, a transmitting member mounting portion through which the water transmitting member is inserted into the filling space is formed inside the insertion mounting portion.

The transmission member mounting portions are formed at a spaced apart position, and both ends of the water transmitting member pass through the pair of transmission member mounting portions and are positioned inside the filling space.

The upper surface of the filling space is formed with a transmitting member guide for guiding the water transmitting member exposed to the inside of the filling space to the lower surface of the filling space.

The water bottle unit includes: an upper member forming an upper surface of the water bottle unit; And a lower member coupled to a lower surface of the upper member and forming a lower surface of the water bottle unit, wherein the filling space is formed between the upper member and the lower member.

The lower member joint portion and the upper member joint portion which are in contact with and joined to each other are formed on the lower surface of the upper member and the lower member, and the upper member joint portion and the lower member joint portion are joined by ultrasonic welding.

The lower member joining portion is formed so as to be depressed upwardly so as to be accommodated in the upper member joining portion, and the upper member joining portion is horizontally formed with the upper face of the upper member joining portion being horizontally formed; And a vertical portion formed to be perpendicular to the plane member is formed to be in contact with a side surface of the upper member joint portion.

The support member is formed on the upper surface of the lower member so as to protrude upward and to contact the lower surface of the upper member when the upper member and the lower member are engaged with each other to support the upper member.

A support portion engaging portion is formed at a position corresponding to the support portion on the lower surface of the upper member, in which an end portion of the support portion is fitted.

First, a filling space for storing water to be supplied to the wet-cloth is formed in a water-bottle unit to which the wet-cloth is mounted, and the water-inlet unit is formed with an air inflow portion that forms an inflow passage of the outside air into the filling space. At this time, the air inflow portion is recessed from the upper surface of the water bottle unit to the inside of the filling space, extends toward the bottom surface of the filling space, and an air hole is formed at the lower end of the air inflow portion. Therefore, when the water level inside the filling space is a water level at which the lower end of the air inflow portion is submerged, the air hole is clogged with water, thereby preventing a large amount of water from being supplied to the waterbottl due to high water pressure due to a high water level. When the water level inside the filling space is lower than the lower end of the air inlet, the air holes are not blocked, and even when a low water pressure due to a low water level is formed, water is smoothly supplied to the water- That is, the internal air pressure is controlled according to the water level in the filling space, so that the amount of water supplied to the wet-cloth can be adjusted to a certain level.

Second, since the air inlet is formed on the top surface of the water container unit, the air inlet is prevented from being clogged by the foreign matter and scale inside the filling space. Therefore, it is possible to supply stable water to the wet cloth, thus effectively cleaning the water.

Third, the air inlet is formed in the guide groove recessed on the upper surface of the water container unit. Accordingly, in a state where the water bottle unit is mounted on the lower surface of the main body of the robot cleaner, even when the upper surface of the water bottle unit and the lower surface of the robot cleaner come into contact or are located adjacent to each other, the air can be smoothly moved to the air inlet through the guide groove.

Fourth, the guide groove is formed with an inclined surface inclined toward one end of the water bottle unit, and the air inlet is formed on the surface of the guide groove. Therefore, when the water inside the filling space is pushed out through the air inlet, the water is moved to the wet-cloth along the slope and absorbed by the wet-cloth, so that the water can be prevented from being stuck on the upper surface of the water- .

Fifth, the guide groove is provided so that the auxiliary wheels pass through the inclined surface when the water bottle unit is mounted. That is, since the auxiliary wheels are moved along the guide grooves when the water bottle unit is mounted, the mounting position of the water bottle unit is guided. Therefore, the water bottle unit can be easily mounted at the correct position of the main body, and convenience is improved.

Sixth, the water supply unit provided on the lower surface of the water bottle unit includes a water transfer member that absorbs the water inside the filling space and transfers the water to the wet-cloth. At this time, a part of the water-transmitting member is exposed to the inside of the filling space and a part of the water-transmitting member is exposed to the outside to be brought into contact with the wet-cloth. That is, since the water transfer member transmits water by direct contact with the wet-cloth, the amount of water to be supplied is controlled in accordance with the change of the water-absorbing capacity of the wet-cloth according to the wetness of the wet-cloth. Therefore, stable water supply to the wet cloth can be prevented, and the problem of the wet cloth becoming excessively wet can be prevented.

Seventh, a guide is provided on the upper surface of the filling space to guide the water-transmitting member exposed downward into the filling space, so that the water-transmitting member can be positioned in contact with the lower surface of the filling space. Therefore, even when the water level inside the filling space is low, the water can be easily absorbed and the residual water can be used more effectively.

Eighth, the overall shape of the water bottle unit is formed by the combination of the upper member and the lower member, and the upper member and the lower member are joined by ultrasonic welding. In the portion where the upper member and the lower member are in contact with each other, , And a horizontal flat surface portion is formed. Therefore, when ultrasonic welding is performed, the ultrasonic wave is stably transmitted, so that the upper member and the lower member can be stably fused, and defective fusion can be prevented.

Ninthly, by forming a support portion protruding upward on the upper surface of the lower member to support the lower surface of the upper member, it is possible to effectively prevent the deformation of the filling space formed between the lower member and the upper member, and the durability .

1 is a perspective view showing a state in which a water bottle unit of a robot cleaner according to an embodiment of the present invention is mounted on a main body.
2 is a perspective view showing a state where a water bottle unit of a robot cleaner according to an embodiment of the present invention is mounted on a main body.
3 is a perspective view showing an upper structure of a water tub unit according to an embodiment of the present invention.
4 is a perspective view showing a bottom structure of a water bottle unit according to an embodiment of the present invention.
5 is an exploded perspective view of a water bottle unit according to an embodiment of the present invention.
FIG. 6 is an exploded perspective view of FIG. 5 as viewed from below.
7 is a cross-sectional view showing the cross-sectional structure of the air inlet by cutting the water tank unit of FIG. 3 on the basis of 7-7 '.
FIG. 8 is an incision view showing a structure in which the water bottle unit is cut in reference to FIG. 4 with reference to 8-8 '.
FIG. 9 is a cut-away view showing a structure in which the water tank unit is cut along the line 9-9 'in FIG.
FIG. 10 is a view showing in detail the structure of the upper member joining portion and the lower member joining portion according to the embodiment of the present invention. FIG.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It should be understood, however, that there is no intention to limit the spirit of the invention to the embodiments shown, and that other embodiments falling within the spirit of the invention or other inventions contemplated by way of addition, alteration, .

FIG. 1 is a perspective view showing a state in which a water bottle unit of a robot cleaner according to an embodiment of the present invention is mounted on a body, FIG. 2 is a perspective view showing a state in which a water bottle unit of a robot cleaner according to an embodiment of the present invention is mounted on a body, to be.

The main body 110 of the robot cleaner 100 may be formed in a polyhedral shape including an upper surface, a bottom surface, and a rim surface. Hereinafter, for the sake of convenience, the front surfaces of the main body 110 corresponding to the front and rear sides in the traveling direction of the main body 110 will be referred to as the front surface and the rear surface of the main body 110, respectively. A side surface of the main body 110 positioned between the front and rear surfaces of the main body 110 is referred to as a side surface of the main body 110.

A nozzle opening 111 may be formed in the bottom surface of the main body 110. The nozzle opening 111 may be defined as a portion in which air containing foreign matter is sucked into the inside of the main body 110. The nozzle opening 111 may be formed by cutting a part of the front surface of the bottom surface of the main body 110.

And a discharge port 112 may be formed on one side of the rim of the main body 110. The discharge port 112 may be defined as a place where the air sucked into the main body 110 is discharged to the outside of the main body 110 in a state where foreign matter is filtered. In the present embodiment, the discharge port 112 may be located on one side of the rear surface of the main body 110.

Inside the main body 110, a suction device may be provided. The suction device may be provided to suck air containing foreign matter through the nozzle opening 111 and to provide a suction force for discharging the filtered air through the discharge port 112. [

The main body 110 may be provided with an agitator 140. The agitator 140 may be installed inside the main body 110 corresponding to the upper portion of the nozzle opening 111. The agitator 140 may remove foreign substances from the object to be cleaned through the nozzle opening 111.

The main body 110 may be provided with a wheel 150 for moving the robot cleaner 100. The wheels 150 may include driving wheels 151 and auxiliary wheels 152. The driving wheel 151 may be rotated by a driving force provided from a driving motor for driving the main body 110. [ The auxiliary wheel 152 may be provided to support the main body 110 at a position spaced apart from the driving wheel 151 by rolling movement of the main body 110.

Meanwhile, a pair of guide ribs 113 may be provided on the bottom surface of the main body 110. The guide ribs 113 may serve to guide the movement of the water bottle unit 20 when the water bottle unit 20 to be described later is attached to or detached from the main body 110. The guide ribs 113 may be spaced apart from each other on the bottom surface of the main body 110 and extend longitudinally on the bottom surface of the main body 110.

At this time, the pair of guide ribs 113 may be relatively wide in spacing between the rear ends of the guide ribs 113 in comparison with the front end thereof, so that the water bottle unit 20 can be inserted easily. Therefore, the water bottle unit 20 can be guided by the pair of guide ribs 113 and mounted in the main body 110 at a predetermined position.

On the bottom surface of the main body 110, a first fixing part 115 and a second fixing part 117 for limiting forward movement of the water bottle unit 20 may be formed.

The first fixing part 115 may be formed such that a part of the main body 110 protrudes downward. The first fixing part 115 may be positioned at the rear end of the main body 110 corresponding to the rear of the rear end of the guide rib 113.

The first fixing part 115 may be located at the center of the width of the main body 110 in the transverse direction. In addition, the first fixing part 115 may be rotatably mounted on the auxiliary wheel 152. At this time, the auxiliary wheel 152 may further protrude downward from the first fixing part 115. Therefore, when the water bottle unit 20 is slidably mounted on the main body 110, the friction between the water bottle unit 20 and the main body 110 is reduced by contacting the water bottle unit 20, It is possible to make smooth movement possible.

When the water bottle unit 20 is moved forward along the guide ribs 113, the fixing ribs 228 of the water bottle unit 20 are inserted and fixed to the first fixing parts 115 A first securing slot 116 may be formed. The first fixing slot 116 may be formed to be recessed from one side of the first fixing part 115 and open rearward so that the fixing ribs 228 of the water bottle unit 20 can be inserted. have.

Meanwhile, the second fixing part 117 may be formed such that a part of the main body 110 protrudes downward. The second fixing part 117 may be positioned in front of the front end of the guide rib 113. At this time, the second fixing portions 117 may be provided as a pair of left and right spaced apart from each other, and may be positioned on the front end side of the pair of guide ribs 113, respectively.

The second fixing part 117 is provided with a second fixing part 117 to which the engagement protrusion 212 of the water bottle unit 20 is inserted and fixed when the water bottle unit 20 is moved forward along the guide rib 113. [ A locking slot 118 may be formed. The second fixing slot 118 may be recessed from one side of the second fixing part 117 and open rearward so that the latching protrusion 212 of the water bottle unit 20 can be inserted.

When the fixed ribs 228 and the locking protrusions 212 are inserted into the first fixing part 115 and the second fixing part 117, the forward movement of the water bottle unit 20 is restricted, Can be located at the correct mounting position of the second housing (20).

The fixing ribs 228 and the locking protrusions 212 are formed on the bottom surface of the main body 110 in a state in which the water bottles 20 are inserted into the first fixing portions 115 and the second fixing portions 117, The restricting portion 130 may be formed so as not to be detached.

The restricting portion 130 may be defined as a portion where the restricting rib 227 of the water bottle unit 20 is inserted and locked. The restricting portion 130 may be located behind the first fixing portion 115 and may be located at the center of the width of the main body 110 in the transverse direction.

The restricting portion 130 includes an inlet / outlet opening 132 through which the restricting rib 227 is inserted and locked when the water bottle unit 20 is slid forward along the guide ribs 113, And a moving member 131 that is vertically moved inside the entrance / exit opening 132.

The entrance / exit opening 132 may be recessed from the bottom surface of the main body 110. The rear end may be inclined so as to guide the entry / exit of the restricting ribs 227.

The restricting rib 227 is elastically deformable at one side of the water bottle unit 20 so that it can be selectively engaged with the inlet and outlet opening 132 by elastic deformation when the water bottle unit 20 is moved back and forth have.

Meanwhile, the moving member 131 may be provided with an elastic member on the inner side. Accordingly, when the restricting rib 227 is inserted into the entry / exit opening 132, the moving member 131 can be moved upward. When the restricting rib 227 is detached from the entry / exit opening 132, it can be moved downward by the elastic force of the elastic member. At this time, the lower end of the moving member 131 may be moved downward to be positioned at the same height as the lower end of the entrance / exit opening 132.

Meanwhile, the main body 110 may be provided with a sensing device for sensing whether the water bottle unit 20 is mounted. The sensing device may be located inside the entrance opening 132, and the moving member 131 may provide a function of a button for sensing the sensing device. For example, a switch for detecting mounting of the water bottle unit 20 may be provided on the inside of the entrance opening 132, and the switch may be operated by moving the movable member 131 up and down. Therefore, the robot cleaner 100 can provide different operation modes depending on whether the water bottle unit 20 is mounted or not.

Meanwhile, the water bottle unit 20 is detachably provided to the main body 110 and may be provided so that a water-wet can be installed. 7 and 50) filled with water to be supplied to the wet-cloth can be formed in the water bottle unit 20.

The water bottle unit 20 may be formed in a plate shape having a predetermined area and height. For example, as shown in FIG. 1, the body 110 may be formed in a plate shape which is formed on a part of the bottom surface and a part of the rear surface.

The overall shape of the water bottle unit 20 can be formed by the combination of the upper member 200 and the lower member 300.

In detail, the upper member 200 may be provided to form an upper structure of the water bottle unit 20. The upper member 200 includes a water container forming part 210 that forms the filling space 50 by engaging with the lower member 300 and a water container forming part 210 in which the user removes the water container unit 20 And an operation unit 220 for operating. At this time, the area of the water bottle unit 20 in which the filling space 50 is formed can be defined as a water bottle.

The lower part 300 may be formed to block the recessed space of the bottom of the water container forming part 210. Therefore, the filling space 50 may be formed between the water bottle forming part 210 and the lower member 300.

Meanwhile, the operation unit 220 may not be provided as a part of the upper member 200, but may be provided as a part of the lower member 300. That is, the water bottle can be formed by coupling the water bottle forming part 210 and the lower member 300 of the upper member 200, and the operation part 220 is formed integrally with the water bottle forming part 210 Or may be integrally formed with the lower member 300. In the present embodiment, a structure in which the operating portion 220 is provided as a part of the upper member 200 will be described in detail.

The filling space 50 may be formed in a front half portion of the water bottle unit 20 and the water bottle forming portion 210 may be defined as a front end portion of the upper member 210. The operation unit 220 may be defined as a rear half of the upper member 210.

The bucket forming part 210 may be formed with the locking protrusion 212. The locking protrusion 212 may be defined as a portion inserted into the second fixing slot 118 when the water bottle unit 20 is mounted on the main body 110. That is, the locking protrusion 212 may be inserted into the second fixing slot 118 and fixed to the second fixing portion 117. For this purpose, the latching protrusion 212 may protrude forward from the front edge of the bucket forming part 210.

The operation unit 220 can be extended from the rear end of the water container forming unit 210 as a part operated by a user to move the water container unit 20 horizontally to the main body 110. The operation unit 220 is formed in a shape corresponding to the rear surface of the main body 110 in a state where the water bottle unit 20 is mounted on the main body 110 and is in contact with the back surface of the main body 110 .

A second opening 222 may be formed between the operating portion 220 and the water tub forming portion 210. The second opening 222 may be formed by cutting a part of the operating part 220 and may be formed at a position corresponding to the first fixing part 115. Interference between the first fixing part 115 and the water bottle unit 20 can be avoided in a state where the water bottle unit 20 is mounted to the main body 110 by the second opening part 222. [

The manipulation unit 220 may include the fixed ribs 228. The fixed rib 228 may be defined as a portion inserted into the first fixing slot 116 when the water bottle unit 20 is mounted on the main body 110. That is, the fixing ribs 228 may be inserted into the first fixing slots 116 and fixed to the first fixing portions 115. The fixing ribs 228 may protrude from one side of the operation unit 220 corresponding to the rear end of the second opening 222, and may be elongated in the left and right direction.

The restricting ribs 228 may be formed on the operating portion 220. The restricting rib 228 may be defined as a portion confined to the restricting portion 130 when the water bottle unit 20 is mounted on the main body 110. The restricting ribs 228 may protrude upward from one side of the manipulation part 220 and may be elastically deformable. In detail, the restricting ribs 228 may be positioned on one side of the manipulation part 220 adjacent to the fixed ribs 228. An incision 229 may be formed on one side of the manipulation part 220 adjacent to the constraining rib 228 for elastic deformation of the constraining rib 228.

A first opening 221 may be formed in the operation unit 220. The first opening 221 may be provided so that air can be discharged through the discharge port 112 in a state where the water bottle unit 20 is mounted on the main body 110. The first opening part 221 may be formed by cutting a part of the operation part 220 corresponding to the discharge port 112 with the water bottle unit 20 mounted on the main body 110 have.

The operation unit 220 may be formed with a grip unit 223. The grip portion 223 may protrude rearward from the upper end of the operation portion 220.

FIG. 3 is a perspective view showing a top structure of a water bottle unit according to an embodiment of the present invention, and FIG. 4 is a perspective view showing a bottom structure of a water bottle unit according to an embodiment of the present invention.

The operation unit 220 may be formed to extend in the vertical direction and have a predetermined height so as to cover the rear surface of the main body 110.

The second opening 222 may be formed between the bucket forming portion 210 and the operation portion 220. The fixed ribs 228 may protrude from one side of the operation unit 220 corresponding to the rear end of the second opening 222.

The fixing rib 227 may be positioned behind the fixing rib 228, and at least a part of the fixing rib 227 may be integrally formed with the fixing rib 228. The restricting ribs 227 may protrude upward from the fixing ribs 228. Therefore, when the fixing ribs 228 are inserted into the first fixing portions 115, the fixing ribs 227 are inserted into the fixing portions 130 located behind the first fixing portions 115, And can be constrained. In addition, cutouts 229 for resilient deformation of the restricting ribs 227 may be formed on the left and right sides of the restricting ribs 227.

On the other hand, a mop fixing member 40 for fixing the wet-cloth can be provided on the upper surface of the water container forming part 210. For example, the mop fixing member 40 may be a Velcro, and the wet cloth may be provided with a relative Velcro which is fixed to the mop fixing member 40.

The mop fastening member 40 may be provided at the front end portion and the rear end portion of the water tub forming portion 210, and may be provided at the front end portion and the rear end portion so as to be adjacent to the left and right end portions, respectively. Therefore, the user can fix both sides of the wet cloth to the mop fastening member 40 after the wet cloth covers the bottom surface of the water bottle unit 20 corresponding to the water bottle forming part 210. At this time, one side of the wet-cloth is fixed to the mop fixing member 40 provided at the front end of the water-bottle forming part 210, and the other side of the wet-cloth is passed through the second opening 222, And may be fixed to a mop fastening member 40 provided at a rear end of the mop 210.

The front end portion and the rear end portion of the water container forming portion 210 having the mop fastening member 40 may be inclined. Therefore, the user can easily attach / detach the wet cloth because the mop fixing member 40 is inclined. A plurality of protrusions may be formed at the front and rear ends of the water-bottle forming unit 210 at a portion where the wet-cloth covers the bottom of the water-bottle unit 20 and then folds. Therefore, the water-wet can be more firmly fixed to the water tub unit 20 by the plurality of projections and flow can be prevented.

On the other hand, a water injecting portion 230 may be formed on the upper surface of the water container forming portion 210, in which a water inlet (Figures 5 and 233) is drilled to supply water into the filling space 50 . The water injector 230 may be provided with a cap 30 for opening and closing the water inlet 233.

In addition, a depressed guide groove 260 may be formed on the upper surface of the water container forming part 210. The guide groove 260 has a function of allowing the initial mounting position of the water bottle unit 20 to be aligned by inserting the auxiliary wheel 152 when the water bottle unit 20 is slid and mounted on the main body 110 Can be provided.

In detail, the guide groove 260 may be recessed from the upper surface of the water container forming part 210, and may be formed to open forward. The guide groove 260 may be formed at a position corresponding to the auxiliary wheel 152 when the water bottle unit 20 is mounted at the correct position on the main body 110. That is, the guide groove 260 may be formed at the center of the left and right widths on the upper surface of the water container forming part 210. When the water bottle unit 20 is moved forward from the rear side in order to mount the water bottle unit 20 to the main body 110, the auxiliary wheel 152 is provided in front of the guide groove 260, Inserted into the guide groove 260 through the guide opening 262, and can be moved along the guide groove 260. Accordingly, the water tank unit 20 can be aligned with the initial mounting position by the auxiliary auxiliary wheel 152 and the guide groove 260.

The guide opening 262 may be formed to have a greater width in the transverse direction than the rear region, and may be formed to be larger toward the front. Therefore, when the water bottle unit 20 is initially installed, the auxiliary wheel 152 can be guided to the inside of the guide groove 260 more easily, and the water bottle unit 20 can be smoothly mounted have.

In addition, an air inflow part 270 for regulating the air pressure inside the filling space 50 may be formed in the water container forming part 210.

The air inlet 270 may be formed on the bottom surface of the guide groove 260. At this time, the inclined surface 261 may be formed on the bottom surface of the guide groove 260. The inclined surface 261 may be inclined downward toward the front. Therefore, when the water in the filling space 50 is discharged through the air inlet 270, the water can be guided forward along the inclined surface 261 and absorbed by the wet cloth.

The lower member 300 may be provided to shield the lower portion of the filling space 50 and may be coupled with the upper member 200 such that a portion of the lower member 300 coupled with the upper member 200 is completely hermetically sealed , So that water in the filling space 50 can not be leaked.

The lower member 300 may be provided to form the majority of the area wrapped by the wet cloth on the lower surface of the water bottle unit 20. [ The lower member 300 may be provided in a plate shape and the lower surface may be formed in a completely flat state. Accordingly, the water-wet can be adhered to the lower surface of the lower member 300 in a state of being mounted on the water-bottle unit 20, and can be provided so as to be supported by the lower member 300, have.

The lower member 300 may be provided with a water supply unit for supplying water in the filling space 50 with a wet-cloth. The water supply unit includes a water transfer member 70 for absorbing water in the filling space 50 and transferring the water to the wet-cloth, and a water supply unit 70 mounted on the lower member 300, And may include a shield member 60 that provides a supply passage.

A plurality of the shielding members 60 may be provided on the lower member 300. For example, the lower member 300 may be provided symmetrically to the left and right sides of the center of the lateral width of the lower member 300, and the lower member 300 may be positioned on the pair of lateral lines.

FIG. 5 is an exploded perspective view of a water bottle unit according to an embodiment of the present invention, and FIG. 6 is an exploded perspective view of the water bottle unit viewed from below.

The water injecting part 230 of the upper member 200 may be formed with a stepped stopper part 232 which is recessed from the upper surface of the water container forming part 210. The injection port 233 may be formed at the center of the plug seat 232.

The plug seating part 232 is a part that is seated in a state where the plug 30 shields the injection port 233 and has a shape corresponding to the plug 30 and a shape corresponding to the height of the plug 30 As shown in FIG. The injection port 233 may be formed in the upper surface of the water container forming part 210 as a passage for injecting water into the filling space 50.

The water injecting part 230 may be formed with a stopper holding groove 231 for inserting a finger for lifting up and opening one side of the stopper 30 by the user. The stopper holding groove 231 may extend from one side of the stopper seating portion 232 and may be recessed more deeply than the stopper seating portion 232.

The stopper 30 includes a stopper body 31 that is seated on the stopper seat 232 and a stopper grip 32 protruding from the stopper body 32 toward the stopper groove 231, And a cap fixing part 33 fixed to one side of the upper member 200.

The stopper holding portion 32 may protrude to cover a part of the upper end of the stopper holding groove 231. Accordingly, the user can insert the finger into the stopper holding groove 231, lift the stopper 32, and open the stopper 30.

The stopper fixing part 33 may protrude downward from one side of the stopper body 31. The stopper fixing part 33 may be formed at one side of the stopper mounting part 232 with a groove or hole Can be formed.

A sealing portion 34 protruding in a shape corresponding to the injection port 233 may be formed on the lower surface of the stopper body 31. The sealing portion 34 may be inserted into the injection port 233 when the plug 30 shields the injection port 233 and the injection port 233 may contact the inner circumferential surface of the injection port 233, It can be confidential.

In the meantime, the lower member 300 can be formed in its overall shape by the plate-like lower member body 310. The lower member body 310 may be formed in a shape corresponding to the lower end of the filling space 50, and the lower surface may be formed flat.

The lower member body 310 may be formed with a shielding member mounting portion 320 on which the shielding member 60 is mounted. The shielding member mounting portion 320 may be formed in a number corresponding to the number of the shielding members 60. In the present embodiment, a pair of shielding member mounting portions 320 will be described in detail.

The shield member mounting portion 320 may be formed at a position symmetrical to both left and right sides of the center of the lateral width of the lower member body 310. The shield member mounting portion 320 may include a pair of linear Respectively.

The lower surface of the shielding member 60 and the lower surface of the lower member body 310 may be positioned on the same plane when the shielding member 60 is mounted. In detail, the shielding member mounting portion 320 may be recessed from the lower surface of the lower member body 310 and protrude from the upper surface of the lower member body 310. At this time, the shielding member mounting portion 320 may be recessed at a height corresponding to the height of the shielding member 60, and may be formed in a shape corresponding to the shape of the shielding member 60.

A supply hole 330 may be formed in the inner surface of the shielding member mounting part 320 to provide a passage through which water in the filling space 50 can be moved by the wet-cloth. The supply hole 330 may be formed in the inner surface of the shield member mounting portion 320.

The shielding member 60 includes a shielding member body 61 formed in a shape corresponding to the shielding member mounting portion 320 and a shielding member body 61 extending from the upper surface of the shielding member body 61, (Not shown). The shielding member 60 may be formed of an elastic material such as urethane or rubber.

The shielding member body 61 may be inserted into the shielding member mounting portion 320 and be formed into a shape corresponding to the supply hole 330. The insertion receiving portion 62 may be inserted into the supply hole 330 in a state where the shielding member body 61 is inserted into the shielding member mounting portion 320. The insertion receiving portion 62 may be provided so as to be in tight contact with the inner surface of the supply hole 330 to provide a tight seal between the inner surface of the supply hole 330 and the outer surface of the insertion mounting portion 62.

Meanwhile, a transmitting member mounting portion 63 to which the water transmitting member 70 is mounted may be formed on one side of the shielding member body 61.

The transfer member mounting portion 63 is provided so that the water transfer member 70 can be exposed to the inside of the filling space 50 through the shield member body 61 from the outside of the shield member body 61 . In detail, the transmitting member mounting part 63 may be formed by cutting a part of the shielding member body 61 and penetrating the shielding member body 61. At this time, the transmitting member mounting portion 63 may be formed in the inner region of the insertion mounting portion 62. That is, the insertion receiving portion 62 may protrude from an outer region of the transmitting member mounting portion 63.

In addition, the transmission member mounting portion 63 may be formed at a position spaced apart from each other such that both ends of the water transmission member 70 are inserted. At this time, the transfer member mounting portion 63 is smaller than the circumference of the water transfer member 70 so that water is not leaked between the gap with the water transfer member 70 in a state where the water transfer member 70 is inserted . ≪ / RTI > The shielding member 60 is formed of an elastic material so that the cut inner surface of the transmitting member mounting portion 63 can be provided to elastically bend the periphery of the water transmitting member 70. Therefore, in the state that the water transfer member 70 is mounted on the transfer member mounting portion 63, water in the filling space 50 can be transferred to the outside only through the water transfer member 70.

Meanwhile, the water transfer member 70 may be formed of various materials capable of absorbing and transmitting water. For example, the water transfer member 70 may be formed of a fabric material, and more specifically, may be formed of a nonwoven fabric.

The water transfer member 70 may have a length such that both ends of the water transfer member 70 are inserted into the transfer member mounting portion 63 and then both ends thereof are in contact with the lower surface of the filling space 50.

A guide 280 for guiding the end portion of the water transfer member 70 to the lower surface of the filling space 50 may be formed on the lower surface of the water container forming portion 210 of the upper member 200 have.

The transfer member guide 280 may be formed at a position corresponding to the transfer member mounting portion 63 on the lower surface of the water container forming portion 210. The transmission member guide 280 may protrude downward from the lower surface of the water container forming part 210.

The transfer member guide 280 includes a first guide 281 guiding both ends of the water transfer member 70 away from each other in a direction opposite to the first guide 281, And a second guide 282 that guides the second guide 282 toward the bottom surface of the second guide plate 50.

The first guide 281 may be positioned vertically above the transmitting member mounting portion 63. The first guide 281 may protrude at a maximum center portion and may extend upward from the center portion toward the outer side. That is, the first guide 281 may protrude from the lower surface of the water container forming part 210 in a V shape. Accordingly, the water-transmitting member 70 can be guided along both inclined surfaces of the first guide 281 so that the opposite ends thereof are away from each other.

The second guides 282 may be formed at positions opposite to each other with respect to the first guide 281. The second guide 282 may protrude downward toward the outer side with respect to the first guide 281. Accordingly, the water transfer member 70 can be guided downward along the inclined surfaces of the pair of second guides 282 to face the bottom surface of the filling space 50.

The first guide 281 and the pair of second guides 282 are arranged in the forward and backward directions on the lower surface of the water container forming part 210 to guide both ends of the water transfer member 70 forward and backward And may be provided so as to guide downward. At this time, the water transfer member 70 needs to be aligned so that both ends thereof face the inclined surfaces of the first guide 281 and the second guide 282. For this purpose, markings may be provided on the lower surfaces of the shielding member 60 and the lower member body 310 to align the shielding member 60 by rotating the shielding member 60.

Of course, the transmitting member guide 280 may be formed such that the first guide 281 is formed in a conical shape and the second guide 282 is provided in the same shape as a ring formed around the first guide 281 . That is, the water-transmitting member 70 may be provided so as to be guided to the transmitting member guide 280 without rotating the shielding member 60 and aligning the position.

The support member 340 may be formed on the lower member body 310 to improve the engaging force when the upper member 200 and the lower member 300 are coupled with each other and prevent the deformation of the filler space 50 . The support portion 340 may protrude upward from the upper surface of the lower member body 310. A plurality of the support portions 340 may be provided. In this embodiment, a structure in which the support portions 340 are provided as a pair will be described in detail.

The support part 340 may be formed at the center position of the left area and the center position of the right area when the lower member body 310 is bisected right and left. At this time, the support portion 340 may be located at the outer end of the shielding member mounting portion 320.

The support portion coupling portion 290 may be formed at a position corresponding to the support portion 340 on the lower surface of the water container forming portion 210 to receive the upper end of the support portion 340. The support portion coupling portion 290 may protrude from a lower surface of the water container forming portion 210 and a support portion insertion portion 291 may be formed at a central portion of the support portion coupling portion 290. The upper end of the support portion 340 may be held in contact with the inner upper surface of the support portion coupling portion 290 while being inserted into the support portion insertion portion 291. Therefore, the filling space 50 can be prevented from being twisted and deformed by the coupling structure of the supporting part 340 and the supporting part coupling part 290. In addition, when the upper member 200 and the lower member 300 are engaged, the coupling position may be aligned.

Of course, it is also possible that the support portion 340 is formed on the upper member 200 and the support portion coupling portion 290 is formed on the lower member 300.

The air inlet portion 270 formed in the water container forming portion 210 may be formed on the bottom surface of the guide groove 260 and extend downward. The air inlet 270 may be formed at the center of the width of the water container forming part 210.

The air inflow part 270 may be provided to adjust the air pressure in the filling space 50 to provide a function of supplying a predetermined amount of water to the wet-cloth through the water transfer member 70 have.

7 is a cross-sectional view showing the cross-sectional structure of the air inlet by cutting the water tank unit of FIG. 3 on the basis of 7-7 '.

Referring to FIG. 3, the air inlet 270 may be formed on the inclined surface 210 of the guide groove 260. The guide groove 260 is recessed from the upper surface of the water container forming part 210 so that the air inlet part 270 is formed on the upper surface of the water container forming part 210, The air can be smoothly flowed without being clogged.

The air inflow part 270 may extend downward from the lower surface of the inclined surface 261 and extend to a position adjacent to the bottom surface of the filling space 50. That is, the air inlet 270 may extend to a position adjacent to the upper surface of the lower member body 310. At this time, the lower end of the air inlet 270 may be adjacent to the upper surface of the lower member body 310 and spaced apart by a predetermined distance.

The air inlet 271 may be formed with an air hole 271. The air hole 271 communicates the external space with the filling space 50 so that external air flows into the filling space 50 As shown in Fig. The air hole 271 may be formed to penetrate the center of the air inlet 270 and open to the upper surface of the inclined surface 261 and open to the lower end of the air inlet 270.

According to the structure of the air inflow part 270, when there is a large amount of water in the filling space 50, the air hole 271 is blocked by water, so that the air pressure inside the filling space 50 is lowered, When water is little in the filling space 50, the air hole 271 is opened so that the air pressure inside the filling space 50 can be equal to the atmospheric pressure. Accordingly, by opening and closing the air hole 271 according to the amount of water, the amount of water supplied to the water transfer member 70 can be adjusted to a certain level.

In detail, when a large amount of water is filled in the filling space 50 and air can flow into the filling space 50, a large amount of water is supplied to the water transfer member 70 due to the high water pressure, A problem may arise in which the water is supplied to the wet-cloth through the water- However, according to the structure according to the present embodiment, when the filling space 50 is filled with a large amount of water, the lower end of the air inflow part 270 may be submerged in water. When the lower end of the air inlet 270 is submerged in water, the air hole 271 is blocked by water, so that the outside air can not flow into the filling space 50. Therefore, when water is supplied to the water transfer member 70, the air pressure inside the filling space 50 is lowered, and the amount of water supplied to the water transfer member 70 is regulated. Therefore, it is possible to prevent a problem that the wet cloth becomes excessively wet and the cleaning can not be performed smoothly.

When water is continuously supplied to the wet cloth through the water transfer member 70 to reduce the amount of water in the filling space 50, water is smoothly supplied to the water transfer member 70 due to low water pressure. As shown in FIG. However, according to the structure of the present embodiment, when the amount of water in the filling space 50 is smaller than the height of the lower end of the air inflow portion 270, the air hole 271 can be opened . That is, outside air flows into the filling space 50 through the air hole 271, so that the air pressure in the filling space 50 can be adjusted to the atmospheric pressure. Accordingly, water can be smoothly supplied to the water transfer member 70 even when the water pressure is low as the amount of water is small. Therefore, it is possible to efficiently use the remaining water while preventing the wet cloth from drying.

Meanwhile, the air inlet 270 extends downward from the upper surface of the filling space 50, and the lower end of the air inlet 270 is spaced apart from the lower surface of the filling space 50. Therefore, it is possible to prevent the air hole 271 from being clogged by the foreign matter introduced into the filling space 50 and the scale generated by the water.

FIG. 8 is an incision view showing a structure in which the water bottle unit is cut in reference to FIG. 4 with reference to 8-8 '.

Referring to FIG. 8, the shielding member 60 may be formed with the shielding member mounting portion 320 while mounted on the shielding member mounting portion 320. The lower surface of the shielding member 60 may be positioned on the same plane as the lower surface of the lower member body 310.

Meanwhile, the water transfer member 70 may be mounted at both ends of the shield member 60 by inserting the both ends into the pair of the transmission member mounting portions 63. The both ends of the water transfer member 70 are guided to be away from each other in the opposite direction by the first guide 281 in the filling space 50, And can be guided downward toward the bottom surface of the filling space 50. At this time, both ends of the water transfer member 70 may be provided so as to absorb residual water inside the filling space 50 in contact with the lower surface of the filling space 50.

A part of the water transfer member 70 may be exposed to the outside of the shielding member 60. That is, in a state in which both ends of the water transfer member 70 are inserted into the transfer member mounting portion 63, a part of the water transfer member 70 is inserted into the spaced- And can be exposed to the lower surface of the transfer member mounting portion 63. The portion of the water transfer member 70 exposed to the outside can be in contact with the wet cloth. Accordingly, the water transfer member 70 can suck water through the portion located inside the filling space 50 and directly transfer the water to the wet-cloth through the portion exposed to the outside.

At this time, since the water transfer member 70 transmits water by direct contact with the wet-cloth, the amount of water to be supplied can be adjusted according to the change of the water-absorbing capacity of the wet-cloth according to the wetness of the wet-cloth. Therefore, stable water supply to the wet cloth can be prevented, and the problem of the wet cloth becoming excessively wet can be prevented.

FIG. 9 is a cut-away view showing a structure in which the bucket unit is cut in reference to 9-9 'in FIG. 4, and FIG. 10 is a sectional view showing the structure of the upper member joining portion and the lower member joining portion according to the embodiment of the present invention, Fig.

9, a recessed space serving as the filling space 50 may be formed on the bottom surface of the water tank forming part 210 of the upper member 200, and the lower member 300 may be formed in the water tank forming part 210, May be coupled to the upper member 200 to shield the recessed space of the bottom surface of the base 210.

The upper member 200 may be formed with a lower member joining portion 215 on which a peripheral end of the lower member 300 is mounted. The lower member joining portion 215 may be formed along the circumference of the recessed space of the upper member 200 and may be stepped to accommodate the circumferential end of the lower member 300. The lower member 300 may be in contact with the inner surface of the lower member joining portion 215 while the peripheral surface and the upper edge of the lower member 300 are in contact with the lower member joining portion 215.

When the lower member 300 is accurately positioned and mounted on the lower member joining portion 215, the support portion 340 of the lower member 300 is supported by the support portion coupling portion 290 of the upper member 200 Can be inserted. That is, the upper end of the support portion 340 may be inserted into the support portion insertion portion 291 and be in contact with the inner upper surface of the support portion insertion portion 291. Accordingly, the support portion 340 supports the upper member 200 to prevent the deformation of the filling space 50, and when the lower member 300 is seated on the lower member joining portion 215, Can be maintained.

Meanwhile, the upper member 200 and the lower member 300 may be fusion bonded by one of the ultrasonic welding, vibration welding, and heat welding methods.

The ultrasonic welding method is a welding method in which an ultrasonic wave is generated up and down to frictionally weld two parts. The vibration welding method is a method in which a component is moved left and right to generate friction and fuse. In the heat fusion method, a hot plate is inserted between the upper jig and the lower jig, and heat is applied to the fused surfaces of the respective components to dissolve and heat the components.

Hereinafter, the upper member 200 and the lower member 300 are coupled by ultrasonic welding.

The lower member joining portion 215 is provided with a vertical portion 216 which is in contact with the circumferential surface of the lower member 300 and is perpendicular to the circumferential surface of the lower member 300, A flat surface portion 217 formed to be horizontal can be formed.

The upper member joining portion 316 may be formed at a peripheral end portion of the lower member 300 coupled to the lower member joining portion 215. The upper surface of the upper member joining portion 316 may be formed horizontally so as to be in surface contact with the plane portion 217 and the circumferential surface of the upper member joining portion 316 may be vertically .

A fused protrusion 315 protruding from the upper surface of the upper member bonding portion 316 may be formed before the lower member 300 is fused to the upper member 200. The fused protrusions 315 protrude from the upper surface of the upper member joining portion 316 and may be formed along the periphery of the lower member 300.

When the fusing projection 315 is positioned so as to be in contact with the flat surface portion 217 of the lower member bonding portion 215 and the ultrasonic waves are generated vertically in the upper member 200 and the lower member 300, The fused protrusion 315 melts to fuse the upper member 200 and the lower member 300 together. The upper member joining portion 316 is also connected to the plane portion 217 and the vertical portion 216. The lower member joining portion 215 has a vertical flat portion 217 perpendicular to the horizontal flat portion 217, And is perpendicular to the horizontal plane. Therefore, when the ultrasonic welding is performed, the ultrasonic wave is stably transmitted through the surface perpendicular to the horizontal surface, and the fusion protrusion 315 can be stably melted and fused, thereby preventing defective fusion.

Although the fused protrusions 315 are formed on the lower member 300 in the above description, the fused protrusions 315 may be formed on the upper member 200. The fused protrusion 315 may be additionally formed on the upper end of the support portion 340 or the support portion coupling portion 290 so that the coupling force between the upper member 200 and the lower member 300 is increased It will be possible.

Claims (17)

A main body for filtering and discharging the air sucked into the inside;
A water bottle unit detachably mounted on a lower surface of the main body, the water bottle being mounted on the water bottle;
A filling space formed inside the water bottle unit and storing water supplied to the water-wet bottle;
A water supply unit mounted on a lower surface of the water bottle unit for supplying water in the filling space to the wet-cloth;
A guide groove formed on an upper surface of the water bottle unit and having an inclined surface extending obliquely toward one end of the water bottle unit to which the waterbath is attached;
An air inflow portion that is recessed from the upper surface of the inclined surface toward the inside of the filling space and extends toward the bottom surface of the filling space to form an inflow passage for the outside air;
And an air hole which is opened at a lower end of the air inflow portion and allows outside air to flow into the inside of the filling space. The method according to claim 1,
The air hole
Wherein when the water level inside the filling space is lower than the distance between the lower end of the air inlet and the lower surface of the filling space,
Wherein when the water level inside the filling space is equal to or greater than the distance between the lower end of the air inlet and the bottom of the filling space, the robot cleaner is clogged with water. delete The method according to claim 1,
The main body is provided on its lower surface with auxiliary wheels rotated when the main body is traveling,
Wherein the guide groove is formed at a position corresponding to the auxiliary wheel, and the auxiliary wheel passes through the inclined surface when the water bottle unit is mounted. The method according to claim 1,
Wherein a water supply unit is mounted on a lower surface of the water bottle unit,
Wherein the shielding member mounting portion is formed with a supply hole communicating with the filling space and shielded by the water supply unit. 6. The method of claim 5,
The water supply unit includes:
A shielding member attached to the shielding member mounting portion to shield the supply hole;
And a water-transmitting member mounted on the shielding member, the water-absorbing member absorbing water in the filling space and transferring the water to the wet-cloth,
Wherein a part of the water transfer member is exposed to the outside and is brought into contact with the wet-cloth, and a part of the water is passed through the shielding member and the supply hole to be exposed into the filling space. The method according to claim 6,
Wherein the water transfer member is formed of a fabric material. The method according to claim 6,
Wherein the shielding member is formed of an elastically deformable material. The method according to claim 6,
Wherein the shielding member is formed with an insertion mounting portion protruding in a shape corresponding to the supply hole and coupled with the supply hole. 10. The method of claim 9,
And a transmission member mounting portion in which the water transmission member is inserted through the inside of the filling space is formed inside the insertion mounting portion. 11. The method of claim 10,
A pair of the transfer member mounting portions are formed at positions spaced apart from each other,
Wherein the water transfer member is located at an inner side of the filling space with both ends passing through the pair of transfer member mounting portions. The method according to claim 6,
Wherein the upper surface of the filling space is formed with a transmitting member guide for guiding the water transmitting member exposed to the inside of the filling space to the lower surface of the filling space. The method according to claim 1,
The water bottle unit includes:
An upper member forming an upper surface of the water bottle unit;
And a lower member coupled to a lower surface of the upper member and forming a lower surface of the water container unit,
Wherein the filling space is formed between the upper member and the lower member. 14. The method of claim 13,
A lower member joining portion and an upper member joining portion, which are in contact with and joined to each other, are formed around the lower surface of the upper member and the lower member,
Wherein the upper member joint portion and the lower member joint portion are joined by ultrasonic welding. 15. The method of claim 14,
The lower member joining portion is recessed upwardly to be accommodated in the upper member joining portion,
In the lower member joined portion,
A flat portion formed on the upper surface of the upper member joint portion so as to be in contact with and horizontally;
And a vertical portion formed to be perpendicular to the side surface of the upper member joint portion so as to intersect with the planar portion. 14. The method of claim 13,
On the upper surface of the lower member,
And a support portion for supporting the upper member is formed in contact with the lower surface of the upper member when the upper member and the lower member are engaged. 17. The method of claim 16,
Wherein a support portion coupling portion is formed at a position corresponding to the support portion on a lower surface of the upper member, the support portion coupling portion having an end portion of the support portion fitted therein.

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