KR20230133588A - Cleaner - Google Patents

Abstract

The present invention relates to a vacuum cleaner, and includes a roller that assists the cleaning surface and a roller cover that prevents the roller from being separated from the vacuum cleaner head and can be easily removed, allowing the user to place it on the lower surface of the cleaner head. It includes a cleaner head that allows the rollers to be easily replaced, foreign matter accumulated on the rollers can be easily removed, the running performance of the rollers is maintained, damage to parts is prevented, and maintenance costs and time for the rollers are simplified. It's about vacuum cleaners.

Description

cleaner {CLEANER}

The present invention relates to a vacuum cleaner that performs cleaning while traveling on a cleaning surface, and more specifically, to a vacuum cleaner having a structure in which a roller that assists traveling on the cleaning surface during cleaning can be separated.

In general, a vacuum cleaner is a home appliance that sucks in small trash or dust by sucking air using electricity and fills the dust bin inside the product, and is commonly called a vacuum cleaner.

These vacuum cleaners can be divided into manual vacuum cleaners, in which the user moves the vacuum cleaner while performing cleaning, and automatic vacuum cleaners, in which the vacuum cleaner performs cleaning while traveling on its own. Depending on the type of cleaner, manual cleaners can be classified into canister-type cleaners, upright cleaners, hand-held cleaners, and stick-type cleaners.

In the past, canister-type vacuum cleaners were widely used as household cleaners, but recently, hand-held vacuum cleaners and stick vacuum cleaners, which provide improved convenience of use by providing a dust bin and vacuum cleaner body, are increasingly being used.

A canister-type vacuum cleaner has its main body and suction port connected by a rubber hose or pipe, and in some cases, it can be used by inserting a brush into the suction port.

The Hand Vacuum Cleaner is designed to maximize portability. Although it is light in weight, it is short in length, so there may be limitations depending on the surface you can sit on and clean. Therefore, it is used to clean localized areas, such as on a desk or sofa, or inside a car.

Stick vacuum cleaners can be used while standing, so you can clean without bending down. Therefore, it is advantageous for cleaning a large area while moving. While a handheld vacuum cleaner cleans narrow spaces, a stick vacuum cleaner can clean larger spaces and high places that cannot be reached by hand. Recently, stick vacuum cleaners have been provided in module types, allowing users to actively change the vacuum cleaner type for various purposes.

Methods for cleaning floors are largely divided into dry cleaning and wet cleaning. Dry cleaning is a method of cleaning by sweeping or sucking dust, and a conventional vacuum cleaner corresponds to this. Wet cleaning is a method of cleaning by wiping away dust with a wet cloth. In addition, during wet cleaning, there is also a method of sterilizing and cleaning by generating and spraying high temperature steam.

In general, a roller may be disposed on the lower side of the vacuum cleaner, which is in direct contact with the cleaning surface and assists the movement of the vacuum cleaner. However, parts such as rollers may become contaminated and worn as the vacuum cleaner is continuously used, and foreign substances such as hair may become entangled in them, which may reduce driving performance or generate noise. In this case, the entire configuration including the relevant part had to be disassembled to separate and replace it.

Additionally, if the roller was continuously used while its running performance was degraded due to foreign substances such as hair, there was a risk that excessive load would be applied to the roller and it could be damaged.

In addition, the above separation and replacement sometimes require skilled technicians, causing inconvenience to vacuum cleaner users such as labor costs.

Therefore, there is a need for a cleaner head that includes a structure that allows easy replacement of rollers that assist in traveling on the cleaning surface.

The vacuum cleaner according to the present invention is intended to solve the problems of the prior art described above. The roller that can be placed on the lower surface of the cleaner head can be easily replaced, foreign substances accumulated on the roller can be easily removed, and the roller can be easily replaced. It is a vacuum cleaner with a structure that maintains running performance, prevents damage to parts, and simplifies vacuum cleaner maintenance to save cost and time.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, the cleaner head of the cleaner according to an embodiment of the present invention includes a housing that forms an exterior and has a space inside, a cleaning member disposed in the space inside the housing and cleaning the cleaning surface, and the housing. A lower cover that covers the lower side and has a roller accommodating part recessed in the lower side, a roller that is detachably coupled to the inside of the roller accommodating part and is rotatable so as to roll on the cleaning surface, and is separable from the roller accommodating part and the roller. It is coupled and may include a flat roller cover that blocks separation of the roller.

Here, the roller receiving portion includes a vertically recessed cover groove, and the roller cover includes a cover body disposed in parallel with the lower cover and a cover coupling portion disposed perpendicular to the cover body, and the cover coupling portion , It may be disposed at one end of the cover body and inserted perpendicularly into the cover groove.

In addition, the roller receiving portion includes a hook groove horizontally recessed in the inner wall of the cover groove, and the cover coupling portion includes a cover hook protruding horizontally, and the cover hook is located at a position facing the hook groove. It may be disposed in and detachably coupled to the hook groove.

In addition, the roller includes a roller body formed in a cylindrical shape and a roller shaft disposed through the rotation center of the roller body, and the lower cover is recessed inside the roller receiving portion so that the inner wall forms a curved surface, so that the roller A roller groove into which a part of the main body is retracted, an inner wall of which is recessed to form a curved surface inside the roller receiving part, and one or more roller shaft grooves into which a part of the roller shaft is retracted, and which are formed to protrude vertically inside the roller receiving part to form the cover main body. It may include a cover support that supports.

In addition, the roller cover has a shaft support groove formed on the lower side of the cover body, which is vertically recessed so that the inner wall forms a curved surface, and into which a part of the roller shaft is vertically inserted, and which is vertically recessed on the lower side of the cover main body, so as to form the cover support. It may further include a cover support groove that is vertically retracted.

In addition, the roller shaft and the cover support block the horizontal movement of the cover main body, and the direction in which the roller shaft blocks the horizontal movement of the cover main body and the direction in which the cover support blocks the horizontal movement of the cover main body are It can be characterized as being orthogonal to each other.

Furthermore, the roller accommodating part further includes an auxiliary separation groove recessed in a horizontal direction opposite to the place where the roller is disposed based on the cover engaging part, and the cover engaging part has at least a portion located in the inner space of the auxiliary separating groove. When an external force is applied in a horizontal direction to the exposed portion of the cover coupling portion, the cover hook may be moved horizontally and separated from the hook groove.

In addition, the cover coupling part may be characterized in that a first cover groove is recessed in a portion exposed toward the separation auxiliary groove.

Here, the separation auxiliary groove may be characterized by forming an inclined surface whose depth becomes deeper as it approaches the cover coupling part.

Meanwhile, the cover body may be characterized in that a second cover groove is recessed on the lower side.

Meanwhile, the structure according to the present invention can also be applied to a robot cleaner.

The robot vacuum cleaner according to the present invention includes a housing that forms an exterior and has a space formed therein, a cleaning member disposed in the space inside the housing and cleaning the cleaning surface, and a roller receiving portion that covers the lower side of the housing and is recessed in the lower side. A lower cover, a roller detachably coupled to the inside of the roller accommodating portion and rotatably provided to roll on the cleaning surface, and a roller drive detachably connected to the roller and transmitting a rotational force to the roller to rotate the roller. It includes a motor, a flat roller cover that is detachably coupled to the roller accommodating part and the roller, and blocks separation of the roller, and a control unit that controls the cleaning member and the roller drive motor to control cleaning and running. can do.

Specific details of other embodiments are included in the detailed description and drawings.

According to the vacuum cleaner of the present invention, one or more of the following effects are achieved.

The cleaner head of the cleaner according to the present invention includes a roller that assists the cleaning surface and a roller cover that prevents the roller from being separated from the cleaner and can be easily separated, so that the user can place it on the lower surface of the cleaner head. It makes it easy to replace the rollers, makes it easy to remove foreign substances accumulated on the rollers, maintains the running performance of the rollers, prevents damage to parts, and simplifies the maintenance costs and time of the vacuum cleaner. there is.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned may be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a vacuum cleaner head according to an embodiment of the present invention.
Figure 2 is an exploded view of a cleaner head according to an embodiment of the present invention.
Figure 3 is a perspective view of a roller cover of a cleaner head according to an embodiment of the present invention.
4 to 6 are views showing the roller cover of a cleaner head according to an embodiment of the present invention from various angles.
Figure 7 is a view from below of the cleaner head according to an embodiment of the present invention.
Figure 8 is a diagram for explaining a roller receiving portion formed in a cleaner head according to an embodiment of the present invention.
Figure 9 is a cross-sectional view of a roller receiving portion formed in a cleaner head according to an embodiment of the present invention.
Figure 10 is a cross-sectional view of a roller and a roller cover coupled to a cleaner head according to an embodiment of the present invention.
Figure 11 is a diagram for explaining the application of a roller and a roller cover to a robot vacuum cleaner according to another embodiment of the present invention.
Figure 12 is a diagram for explaining a roller and a roller cover applied to a wet vacuum cleaner according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the cleaner head according to the present invention will be described with reference to the drawings.

In an embodiment of the present invention, a vacuum cleaner may refer to a cleaning device that is manually operated by a user. For example, a cleaner may be a vacuum cleaner, may perform dry and/or wet cleaning, and may refer to a canister vacuum cleaner, an upright vacuum cleaner, a handheld vacuum cleaner, or a stick vacuum cleaner.

In an embodiment of the present invention, a vacuum cleaner may refer to a cleaning device that automatically performs cleaning. For example, a vacuum cleaner may refer to a robot cleaner that can perform dry cleaning and/or wet cleaning as a vacuum cleaner.

The cleaner may include a main body (not shown) and a cleaner head (1). The main body (not shown) is a component that has a suction motor inside and provides suction power to the cleaner head (1). The cleaner head 1 is a component that cleans the cleaning surface using the cleaning member 150.

The main body may be connected to the extension pipe (A). The main body can be connected to the cleaner head (1) through an extension pipe (A). The main body generates suction force through a suction motor and can provide suction force to the cleaner head (1) through the extension pipe (A). External dust may enter the main body through the cleaner head (1) and extension tube (A).

The main body forms the outer shape, and a space is formed inside to store the main components. The main body may be equipped with a dust bin, dust separator, suction motor, filter, handle, control panel, and main battery.

The dust bin is a component that stores dust. The dust bin is in communication with the dust separator and can store dust separated from the dust separator.

The dust separator communicates with the extension pipe (A). The dust separation unit can separate dust sucked into the interior through the extension pipe (A) from the air.

The dust separator may be in communication with the dust bin. More specifically, the dust separator may be disposed inside the dust bin. Therefore, the dust separated from the dust separator is collected in the dust bin, and the air is discharged outside the dust separator.

The dust separation unit may be a cyclone that can separate dust by cyclonic flow.

The suction motor is a component that generates suction force to suck in air. The suction motor is accommodated within the main body. The suction motor generates suction force by rotation.

A filter is a component that filters foreign substances contained in the flowing air. The filter may include a pre-filter or HEPA filter.

The pre-filter is a filter placed upstream among the filters. It is formed in a mesh shape and primarily filters physically large dust. The pre-filter physically filters dust larger than the mesh gap and is a component that improves the lifespan of other filters.

HEPA filter stands for High Efficiency Particulate Air (HEPA) and is a component that filters fine dust. In general, HEPA filters filter fine dust using electrostatic force. The HEPA filter is placed downstream of the pre-filter.

The main body handle can be held by the user. The main body handle may be formed similarly to a cylindrical shape. Alternatively, the main body handle may be formed in the shape of a curved cylinder.

The control unit is a component that receives commands from the user. The control unit may consist of a plurality of buttons, and when the user presses the corresponding button, the corresponding command is performed. For example, the control unit may include an operation button and a stop button.

A main battery may be placed in the main body. The main battery is a component that stores electrical energy and supplies power to each component of the vacuum cleaner, including the suction motor.

The main battery can be detachably coupled to the vacuum cleaner.

The main battery can supply power to the vacuum cleaner head (1). Alternatively, the cleaner head 1 may receive power from a sub-battery.

The extension pipe (A) is a component that guides the air sucked in from the cleaner head (1) to the main body.

One end of the extension pipe (A) communicates with the cleaner head (1), and the other end communicates with the main body. Specifically, the rear end of the extension pipe (A) is connected to the main body, and the front end of the extension pipe (A) is connected to the cleaner head (1).

The extension pipe (A) is formed in a long cylindrical shape.

A rolling axis is formed along the longitudinal direction of the extension pipe (A). The rolling axis is an imaginary line extending in the forward and backward directions, and the cleaner head (1) can perform a rolling movement around the rolling axis.

Before explanation, to aid understanding, direction is defined as follows.

When a vacuum cleaner performs cleaning, the direction in which the cleaning surface is located may be referred to as downward, and the direction opposite to downward may be referred to as upward.

The direction from the center of the cleaner head 1 toward the cleaning member 150 may be referred to as the front, and the direction from the center of the cleaner head 1 toward the extension pipe A may be referred to as the rear.

Left and right sides can be defined based on the state looking forward from the center of the vacuum cleaner head (1).

The same direction as the longitudinal direction of the cleaner head 1 and/or the cleaning member 150 may be called the horizontal direction.

From another perspective, when the cleaner performs cleaning, the direction parallel to the cleaning surface may be called the horizontal direction.

The direction perpendicular to the plane formed by the flat plate of the cleaner head 1 and/or the lower cover 120 may be called the vertical direction.

From another perspective, when the cleaner performs cleaning, the direction perpendicular to the cleaning surface may be called the vertical direction.

From another perspective, when the vacuum cleaner performs cleaning, the direction equal to gravity can be called the vertical direction.

1 to 10 are diagrams for explaining an embodiment in which the cleaner head according to the present invention is applied to a vacuum cleaner manually operated by a user.

The cleaner head 1 shown in FIGS. 1 to 10 has a configuration that can be applied to a vacuum cleaner and can perform dry cleaning.

Below, the description of the present invention based on the vacuum cleaner shown in FIGS. 1 to 10 is merely an example, and as described above, the present invention can also be applied to a wet vacuum cleaner or robot cleaner (FIG. 11 and Figure 12).

Figure 1 is a perspective view of a cleaner head 1 including a roller 130 and a roller cover 140 according to an embodiment of the present invention. FIG. 2 is an exploded view of the roller 130 and roller cover 140 of the cleaner head 1 of FIG. 1.

The cleaner head (1) is a component that cleans the surface by sucking in external air or generating steam.

The cleaner head (1) is connected to the main body. Referring to FIG. 1, the cleaner head 1 may be connected to an extension pipe (A) and may be indirectly connected to the main body through the extension pipe (A).

The cleaner head 1 may include a housing 110.

The housing 110 is a component that forms the outer shape of the cleaner head 1 and creates a space inside to store other components.

Housing 110 is connected to the main body. Referring to Figure 1, the housing 110 is connected to the front end of the extension pipe (A), and the rear end of the extension pipe (A) is connected to the main body, so that the housing 110 can be indirectly connected to the main body through the extension pipe (A). there is. Alternatively, the housing 110 may be directly connected to the main body.

The meaning of ‘connection’ mentioned above can be interpreted in various ways. For example, an air passage extending from the housing 110 to the main body is formed, so that air containing dust can flow into the main body through the housing 110. Here, the housing 110 is electrically connected to the main body so that the main body can supply power to the housing 110.

An intake port may be disposed on the lower surface of the housing 110. The suction port is a component that receives suction power from the main body and sucks in dust existing on the floor to perform dry cleaning.

The cleaner head 1 may include a lower cover 120.

The lower cover 120 is a component that forms part of the lower surface of the cleaner head 1 and protects the parts inside the cleaner head 1.

The lower cover 120 covers the lower side of the housing 110 and can be detachably coupled.

The lower cover 120 may be formed in the shape of a flat plate to cover the lower surface of the housing 110.

The lower cover 120 may be formed in a structure that closes a portion of the lower surface of the housing 110 while leaving a portion of the portion open so that components that perform cleaning can be exposed to the outside.

A space may be formed on one side of the lower cover 120 in which the cleaning member 150 and a flow path through which air is sucked can be placed.

For example, the cleaning member 150 may be placed in front of the housing 110, and the lower cover 120 may be placed behind the cleaning member 150 at a predetermined distance apart.

When the lower cover 120 and the cleaning member 150 are disposed a predetermined distance apart, an air passage through which air containing dust is sucked in and flows from the cleaning surface may be formed between them.

From another perspective, the lower cover 120 may be formed in the shape of a plate that closes the lower surface of the cleaner head 1 except for the area occupied by the cleaning member 150 and the air passage on the lower surface of the cleaner head 1. there is.

The lower cover 120 may be spaced apart from the cleaning member 150 by a predetermined distance, while a portion of the flat plate forming the lower cover 120 may protrude toward the cleaning member 150 .

For example, both sides of the flat plate forming the lower cover 120 may protrude toward the cleaning member 150. Due to the protruding area of the upper plate, the lower cover 120 can be more stably coupled to the housing 110 over a larger area.

Additionally, various components necessary for the cleaner head 1, such as the roller 130 and the roller cover 140, may be placed on the protruding area of the upper flat plate.

From another perspective, the lower cover 120 may be formed to protect the components inside the cleaner head 1 by closing positions that do not have components necessary for cleaning, such as the cleaning member 150 or the air passage.

Above, an example of the shape of the lower cover 120 of the vacuum cleaner head 1 has been described, but the shape is not limited to the above example, and the lower cover 120 is the lower surface of the head of a typical vacuum cleaner. As a protective structure, it can be formed into various shapes.

The roller 130 is a component that is detachably coupled to the lower cover 120 and is rotatable so that it can roll on the cleaning surface.

The roller 130 is a component that allows the vacuum cleaner to run smoothly on the cleaning surface while maintaining an appropriate distance from the cleaning surface when performing cleaning.

The roller 130 may include a roller body 131 having a shape similar to a regular wheel and a roller shaft 132 penetrating the rotation center of the roller body 131.

The roller 130 may rotate around the roller shaft 132.

There may be a plurality of rollers 130, which reduce friction between the cleaner head 1 and the cleaning surface and play the role of a regular wheel that allows the cleaner head 1 to travel on the cleaning surface while performing cleaning. do.

A roller receiving portion 121 having a space therein so that the roller 130 can be inserted may be recessed in the lower surface of the lower cover 120.

The roller receiving portion 121 may be recessed upward from the lower surface of the lower cover 120.

The roller receiving portion 121 may be formed in plural pieces corresponding to the number of rollers 130.

A space is formed inside the roller receiving portion 121 to accommodate the roller 130.

One or more cover supports 1215 may be protruding from the roller receiving portion 121 to support the roller cover 140 and block horizontal movement of the roller cover 140.

A detailed description of the inner shape of the roller receiving portion 121 will be described later with reference to FIGS. 7 to 10.

The roller cover 140 is a component that is detachably coupled to the roller receiving portion 121 and the roller 130 and blocks the movement of the roller 130 so that the roller 130 is not separated from the lower cover 120. am.

The roller cover 140 may be formed in plural pieces corresponding to the number of rollers 130.

The roller cover 140 may be formed in the shape of a flat plate. As an example, the roller cover 140 may be formed in the shape of a flat plate bent at 90 degrees.

Here, in the roller cover 140, the flat plate disposed parallel to the lower cover 120 may be referred to as the cover body 141a, and the flat plate disposed perpendicular to the lower cover 120 may be referred to as the cover coupling portion 141b. can do.

The specific shape of the roller cover 140 will be described in more detail below with reference to FIGS. 3 to 7.

The roller 130 disposed in the roller receiving portion 121 of the lower cover 120 may be contaminated and worn as the cleaner head 1 of the vacuum cleaner performs cleaning, and running performance may deteriorate and noise may be generated. there is.

For example, when the cleaner head 1 performs cleaning, as it travels on the cleaning surface, foreign substances such as hair and dust present on the cleaning surface may become entangled in components such as the roller shaft 132.

Since the roller 130 continuously rotates as the cleaner head 1 performs cleaning, foreign substances once entangled on the roller shaft 132, etc. are continuously wound around the roller shaft 132, etc., and are strongly coupled, making removal difficult. It may not be possible.

If foreign matter wrapped around the roller shaft 132, etc. accumulates, rotation of the roller 130 may become difficult, and as a result, the running performance of the cleaner head 1 will be seriously reduced, and the user will have to use more force for cleaning. Discomfort may occur.

Furthermore, if the user continuously forces the roller 130 to rotate in a state where rotation of the roller 130 is impossible due to the accumulation of foreign substances wrapped around the roller shaft 132, etc., the roller 130 may be severely damaged due to friction with the cleaning surface. There is a risk of wear or damage.

In the past, since the roller 130 was not independently separated from the cleaner head 1, a complicated replacement process had to be performed or the cleaner head itself had to be replaced, which required excessive cost and time to solve the problem.

According to the present invention, a cleaner user can separate the roller 130 from the cleaner head 1 and remove foreign substances, or combine a new roller 130 to solve the problem of foreign substances accumulating inside the roller 130. It can be solved.

A specific embodiment in which the roller 130 is detachably coupled to the cleaner head 1 will be described in more detail below along with other drawings.

Figure 3 is a perspective view of the roller cover 140 of the cleaner head 1 according to an embodiment of the present invention. 4 to 6 are views showing the roller cover 140 of the cleaner head 1 according to an embodiment of the present invention from various angles.

The shape of the roller cover 140 according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6 as follows.

As described above, the roller cover 140 may include a cover body 141a disposed horizontally with the lower cover 120 and a cover coupling portion 141b disposed perpendicular to the lower cover 120.

The cover coupling portion 141b may be disposed at one end of the cover body 141a.

The cover coupling portion 141b is a component that is inserted perpendicularly into the cover groove 1213, which will be described later, and allows the roller cover 140 to be firmly fixed to the lower cover 120.

A cover hook 142 may be formed to protrude from the cover coupling portion 141b. The direction in which the cover hook 142 protrudes may be horizontal with respect to the state in which the roller cover 140 is coupled to the lower cover 120.

A first cover groove 144 may be recessed in the cover coupling portion 141b. The direction in which the first cover groove 144 is recessed may be horizontal, similar to the direction in which the cover hook 142 protrudes.

The first cover groove 144 will be described later along with a description of the separation auxiliary groove 1216.

The cover body 141a is a component that blocks the movement of the roller 130 so that the roller 130 does not separate from the lower cover 120.

On the lower side of the cover body 141a, a cover support groove 143 into which the cover support 1215 is vertically inserted may be formed.

The inner surface of the cover support groove 143 may be formed to be spaced apart from the cover support 1215 by a predetermined distance.

In the cover body 141a, a second cover groove 145 may be formed recessed on the side facing the cleaning surface, based on when the cleaner head 1 travels on the cleaning surface.

On the lower side of the cover body 141a, a shaft support groove 146 into which a portion of the roller shaft 132 is vertically inserted may be formed.

The inside of the shaft support groove 146 may be formed in a curved shape so that it is spaced apart from the roller shaft 132 by a predetermined distance.

Here, the direction in which the cover support groove 143 is depressed may be perpendicular to the direction in which the shaft support groove 146 is depressed.

Figure 7 is a view of the cleaner head 1 according to an embodiment of the present invention viewed from below. Figure 8 is a diagram for explaining the roller receiving portion 121 formed in the cleaner head 1 according to an embodiment of the present invention. Figure 9 is a cross-sectional view of the roller receiving portion 121 formed in the cleaner head 1 according to an embodiment of the present invention. Figure 10 is a cross-sectional view of the roller 130 and the roller cover 140 coupled to the cleaner head 1 according to an embodiment of the present invention.

A roller groove 1211 may be formed in the roller receiving portion 121 to accommodate the roller body 131. Specifically, the inner wall of the roller groove 1211 is formed in a curved shape and may be spaced a predetermined distance from the outer peripheral surface of the roller body 131.

The roller 130 may be arranged so that the rotation axis of the roller 130 is parallel to the longitudinal direction of the cleaner head 1 in order to assist the cleaner head 1 in moving back and forth. In this arrangement, the roller shaft 132 may also be arranged parallel to the longitudinal direction of the cleaner head 1.

The roller groove 1211 may be formed to accommodate the roller 130 whose rotation axis is arranged perpendicular to the longitudinal direction of the cleaner head 1, as shown above.

A roller shaft groove 1212 may be formed in the roller receiving portion 121 to accommodate the roller shaft 132.

The roller shaft groove 1212 may have an inner wall that is curved and may be formed to be spaced a predetermined distance from the outer peripheral surface of the roller shaft 132.

Since the roller shaft 132 penetrates the roller 130 and protrudes from both sides of the roller 130, two roller shaft grooves 1212 may also be formed on opposing inner surfaces of the roller groove 1211.

That is, two roller shaft grooves 1212 may be formed corresponding to positions where the roller shaft 132 protrudes through the roller 130.

The roller shaft groove 1212 supports the roller shaft 132 and serves to fix the roller shaft 132 so that it does not escape to the outside.

A cover groove 1213 may be formed in the roller receiving portion 121 so that the roller cover 140 can be coupled thereto.

The cover coupling portion 141b, one of the components of the roller cover 140, may be vertically inserted into the cover groove 1213.

The cover groove 1213 may include an inner wall that is formed to be spaced a predetermined distance apart from the cover coupling portion 141b when the plate-shaped cover coupling portion 141b is vertically inserted.

A hook groove 1214 may be recessed in the roller receiving portion 121 so that the cover hook 142 can be detachably coupled thereto.

The hook groove 1214 may be formed on at least a portion of the inner wall of the cover groove 1213. Specifically, the hook groove 1214 may be recessed in the inner wall corresponding to the position where the cover hook 142 is disposed when the cover coupling portion 141b is inserted into the cover groove 1213.

The cover hook 142 may be fixed to the hook groove 1214. When at least a portion of the cover hook 142 is caught in the hook groove 1214, vertical movement of the roller cover 140 is blocked.

The user can stably couple the roller cover 140 to the lower cover 120 by manipulating the roller cover 140 to hook the cover hook 142 into the hook groove 1214.

A cover support 1215 may be formed to protrude from the roller receiving portion 121 to support the cover body 141a.

The cover support 1215 may be formed to protrude between the roller groove 1211 and the cover groove 1213 inside the roller receiving portion 121.

The cover support 1215 may be inserted into the cover support groove 143 formed in the cover body 141a to support the cover body 141a.

When the cover support 1215 is coupled to the cover body 141a, horizontal movement of the lower cover 120 may be blocked.

A plurality of cover supports 1215 may be formed to protrude inside the roller receiving portion 121.

After the roller 130 is inserted into the roller receiving portion 121, the roller cover 140 may be coupled.

Specifically, the roller body 131 may be inserted into the roller groove 1211, the roller shaft 132 may be inserted into the roller shaft groove 1212, and then the cover coupling portion 141b may be inserted into the cover groove 1213. can be brought in.

The cover support 1215 may be inserted into the cover support groove 143 of the roller cover 140, and the roller shaft 132 may be coupled to the shaft support groove 146.

Since at least a portion of the roller shaft 132 is coupled to the roller shaft groove 1212, the remaining portion of the roller shaft 132 that is not coupled to the roller shaft groove 1212 may be coupled to the shaft support groove 146.

That is, the roller shaft 132 protrudes in two directions through the roller body 131, is simultaneously supported by the roller shaft groove 1212 and the shaft support groove 146, and is kept from falling out of the lower cover 120. can be protected.

Meanwhile, when the roller shaft 132 is coupled to the shaft support groove 146, horizontal movement of the roller cover 140 can be blocked. That is, the roller shaft 132 may serve as the rotation axis of the roller 130 and also block horizontal movement of the roller cover 140.

From another perspective, the shaft support groove 146 protects the roller shaft 132 from being separated from the outside of the lower cover 120 and at the same time blocks the horizontal movement of the roller cover 140 by the roller shaft 132. It can also perform the role of

As described above, the cover support 1215 may also be coupled to the cover support groove 143 to block horizontal movement of the roller cover 140.

Here, the direction in which the roller shaft 132 blocks the horizontal movement of the roller cover 140 and the direction in which the cover support 1215 blocks the horizontal movement of the roller cover 140 may be perpendicular to each other.

For example, when the direction in which the shaft support groove 146 is depressed and the direction in which the cover support groove 143 is depressed are perpendicular, the direction in which the roller shaft 132 blocks the horizontal movement of the roller cover 140 and the cover The direction in which the support 1215 blocks horizontal movement of the roller cover 140 may be perpendicular to each other.

From another perspective, when the longitudinal direction of the roller shaft 132 and the direction in which the cover support groove 143 is depressed are perpendicular to the direction in which the roller shaft 132 blocks the horizontal movement of the roller cover 140 and the cover support ( The direction in which 1215) blocks horizontal movement of the roller cover 140 may be orthogonal.

With this configuration, the roller cover 140 is formed to block horizontal movement in all horizontal directions, and thus can be more firmly fixed to the lower cover 120.

As a result, when the cover hook 142 of the cover coupling portion 141b is fastened to the hook groove 1214, the vertical movement of the cover coupling portion 141b is blocked, and the cover body coupled with the cover coupling portion 141b ( 141a) Additionally, vertical movement is blocked, and vertical movement of the entire roller cover 140 is blocked.

With this configuration, the roller cover 140 can be firmly fixed to the lower cover 120 by blocking movement in the horizontal direction, blocking vertical movement, and blocking movement in all directions in three dimensions.

When the roller cover 140 is firmly fixed to the lower cover 120, the cover body 141a may be arranged to close at least a portion of the roller 130.

Specifically, the roller cover 140 may be arranged so that the roller body 131 is open and moves across the cleaning surface, and the roller shaft 132 is arranged so as to close at least part of the roller to prevent the roller 130 from coming off. can do.

Meanwhile, a separation auxiliary groove 1216 may be formed in the roller receiving portion 121.

The position of the separation auxiliary groove 1216 can be explained based on the state in which the roller cover 140 is detachably coupled to the inside of the roller receiving portion 121 as described above.

The separation auxiliary groove 1216 may be recessed on the opposite side in the horizontal direction from where the roller 130 is disposed, based on the cover coupling portion 141b.

When the separation auxiliary groove 1216 is formed, at least a portion of the cover coupling portion 141b is exposed toward the separation auxiliary groove 1216.

The direction in which the cover coupling portion 141b is exposed may be the same as the direction in which the cover hook 142 protrudes from the cover coupling portion 141b.

In this case, the direction in which the separation auxiliary groove 1216 is arranged based on the cover coupling portion 141b may also be the same as the direction in which the cover hook 142 protrudes from the cover coupling portion 141b.

Here, when an external force is applied in the horizontal direction to the surface of the cover coupling portion 141b exposed toward the separation auxiliary groove 1216, the cover coupling portion 141b may be moved a predetermined distance in the horizontal direction, and the cover hook 142 ) It can also be moved in the horizontal direction and separated from the hook groove 1214.

The user inserts a finger, etc. into the separation auxiliary groove 1216 and presses the cover coupling portion 141b in the horizontal direction on the exposed surface toward the separation auxiliary groove 1216 to attach the cover hook 142 to the hook groove 1214. ), the roller cover 140 can be separated from the cover groove 1213, and then the roller 130 can be separated from the roller receiving portion 121.

The separated roller 130 can recover the driving performance that has been deteriorated due to foreign substances by removing hair and other foreign substances, and can also be replaced with a new roller 130.

Users can significantly save the time and cost previously required to restore driving performance.

Meanwhile, the separation auxiliary groove 1216 may include an inclined surface formed to become deeper as it approaches the cover coupling portion 141b.

When a user inserts a finger or a tool to separate the roller cover 140, the inclined surface may serve to guide the finger or tool to be drawn toward the cover coupling portion 141b.

Meanwhile, in the cover coupling portion 141b, a first cover groove 144 may be recessed on one surface exposed toward the separation auxiliary groove 1216.

For example, the first cover groove 144 may be formed to have a long rectangular cross-section so that a single-head screwdriver, etc. can be inserted, but the cross-sectional shape is not necessarily limited to this.

The user can more easily separate the roller cover 140 by inserting a tool such as a single-head screwdriver into the first cover groove 144 and applying pressure.

Meanwhile, a second cover groove 145 may be formed recessed on the lower side of the cover coupling portion 141b toward the cleaning surface.

For example, the second cover groove 145 may have a circular cross-section so that a user's finger, etc. can be inserted, but the cross-sectional shape is not necessarily limited to this.

The user inserts a finger or a tool into the second cover groove 145 and applies force in the horizontal direction to separate the cover hook 142 from the hook groove 1214 to attach the roller cover 140 to the lower cover 120. ) can be separated from.

Specifically, in order to separate the roller cover 140 from the lower cover 120, the user inserts a finger or a tool into the second cover groove 145 and applies force in a direction opposite to the horizontal direction in which the cover hook 142 protrudes. can be applied.

The user can selectively insert a tool such as a single-head screwdriver into the first cover groove 144 and press it, or insert a finger or the like into the second cover groove and press it. The roller cover 140 can be easily separated from the lower cover 120 by applying or combining it.

According to the structure of the cleaner head 1 of the present invention, the roller 130 and the roller cover 140 can be very firmly fixed to the lower cover 120 and at the same time can be separated very easily if the user wants to separate them. There is an advantage.

Figure 11 is a diagram for explaining the application of a roller and a roller cover to a robot vacuum cleaner according to another embodiment of the present invention.

The combined structure of the vacuum cleaner head 1 according to the present invention can also be applied to a robot vacuum cleaner equipped with an autonomous driving function.

Referring to FIG. 11, the robot cleaner 2 includes a housing 210 that forms the exterior of the robot cleaner 2 and has a space inside, and a lower cover 220 that covers the lower side of the housing 210 and protects the internal components. ) and a cleaning member 250 that cleans the cleaning surface is disposed.

The robot cleaner 2 is a cleaner capable of autonomous driving, which is detachably connected to the roller 230 and includes a roller drive motor (not shown) that transmits rotational force to the roller 230 to rotate the roller 230, and cleaning and It may further include a control unit (not shown) that controls the cleaning member 250 and the roller drive motor to control travel.

By placing the roller 230 and the roller cover 240 according to the present invention on the lower cover 220 of the robot cleaner (2), the user can easily replace the roller 230 and remove foreign substances to clean the robot cleaner (2). driving performance can be maintained.

The control unit may control whether and/or the rotation speed of the roller drive motor and control the driving of the cleaning member 250.

Since the detailed structure and coupling method of the roller 230 and the roller cover 240 are the same or similar to those described in FIGS. 1 to 10, detailed description will be omitted to avoid redundant description.

Figure 12 is a diagram for explaining a roller and a roller cover applied to a wet vacuum cleaner according to another embodiment of the present invention.

The wet cleaner 3 is a cleaning device that is equipped with a rotatable mop and performs wet cleaning.

Referring to FIG. 12, the wet cleaner 3 includes a housing 310 that forms the exterior of the wet cleaner 3 and has a space inside, and a lower cover 320 that covers the lower side of the housing 310 and protects the internal components. ) and a cleaning member 350 that cleans the cleaning surface is disposed.

By placing the roller 330 and the roller cover 340 according to the present invention on the lower cover 320 of the wet cleaner (3), the user can easily replace the roller 330 and remove foreign substances to clean the wet cleaner (3). driving performance can be maintained.

Since the detailed structure and coupling method of the roller 230 and the roller cover 240 are the same or similar to those described in FIGS. 1 to 10, detailed description will be omitted to avoid redundant description.

Although preferred embodiments of the present invention have been shown and described above, the scope of application of the present invention is not limited to the above vacuum cleaners, and of course, it can be applied to all commercially available vacuum cleaners.

The present invention is not limited to the specific embodiments described above, and various modifications can be made by those skilled in the art without departing from the gist of the invention as claimed in the patent claims. And these modified implementations should not be understood individually from the technical idea or perspective of the present invention.

1: Vacuum cleaner head
110: housing
120: lower cover
121: Roller receiving portion
130: roller
131: roller body
132: Roller axis
140: roller cover
141a: Cover body
141b: Cover coupling part
143: Cover support groove
144: first cover groove
145: Second cover groove
146: Axial support groove
150: Absence of cleaning
A: Extension tube
2: Robot vacuum cleaner
210: housing
220: lower cover
230: roller
240: roller cover
3: Wet vacuum cleaner
310: housing
320: lower cover
330: roller
340: roller cover

Claims (11)

A housing that forms an exterior and has a space inside;
a cleaning member disposed in a space inside the housing and cleaning a cleaning surface;
a lower cover that covers the lower side of the housing and has a roller receiving portion recessed in the lower side;
A roller that is detachably coupled to the roller receiving portion and rotatably moves on the cleaning surface; and
a flat roller cover that is detachably coupled to the roller receiving portion and the roller and blocks the roller from leaving;
A cleaner head containing a.
According to paragraph 1,
The roller receiving part,
A vertically recessed cover groove;
Including,
The roller cover is,
a cover body disposed parallel to the lower cover; and
a cover coupling portion disposed perpendicular to the cover body;
Including,
The cover coupling part,
A cleaner head disposed at one end of the cover body and inserted perpendicularly into the cover groove.
According to paragraph 2,
The roller receiving part,
a hook groove formed horizontally recessed in the inner wall of the cover groove;
Including,
The cover coupling part,
a cover hook that protrudes horizontally;
Including,
The cover hook is,
A cleaner head disposed in a position facing the hook groove and being detachably coupled to the hook groove.
According to paragraph 2,
The roller is,
A roller body formed in a cylindrical shape; and
a roller shaft disposed through the rotation center of the roller body;
Including,
The roller receiving part,
a roller groove whose inner wall is recessed to form a curved surface into which at least a portion of the roller body enters;
One or more roller shaft grooves whose inner walls are recessed to form a curved surface into which at least a portion of the roller shaft is inserted; and
a cover supporter that protrudes vertically and supports the cover body;
A cleaner head containing a.
According to paragraph 4,
The cover body is,
a shaft support groove in which the inner wall is vertically depressed to form a curved surface and into which at least a portion of the roller shaft is vertically inserted;
a cover support groove into which the cover support is vertically inserted;
A cleaner head further comprising:
According to clause 5,
The roller shaft and the cover support,
Coupled to the cover body to block horizontal movement of the cover body,
A cleaner head, wherein a direction in which the roller axis blocks horizontal movement of the cover body and a direction in which the cover support blocks the horizontal movement of the cover body are orthogonal to each other.
According to paragraph 3,
The roller receiving part,
a separation auxiliary groove recessed on the opposite side of the cover coupling portion in the horizontal direction from where the roller is disposed;
It further includes,
The cover coupling part,
At least a portion is exposed to the inner space of the separation auxiliary groove,
A cleaner head, wherein when an external force is applied in a horizontal direction to the exposed portion of the cover coupling portion, the cover hook is moved horizontally and separated from the hook groove.
In clause 7,
The cover coupling part,
A cleaner head characterized in that a first cover groove is recessed in a portion exposed toward the separation auxiliary groove.
In clause 7,
The separation auxiliary groove is,
A vacuum cleaner head characterized by a slope that becomes deeper as it approaches the cover joint.
In clause 7,
The cover body is,
A vacuum cleaner head characterized in that a second cover groove is recessed on the lower side.
A housing that forms an exterior and has a space inside;
a cleaning member disposed in a space inside the housing and cleaning a cleaning surface;
a lower cover that covers the lower side of the housing and has a roller receiving portion recessed in the lower side;
A roller that is detachably coupled to the roller receiving portion and rotatably moves on the cleaning surface; and
a roller drive motor detachably connected to the roller and transmitting rotational force to the roller;
a flat roller cover that is detachably coupled to the roller receiving portion and the roller and blocks the roller from leaving;
A robot vacuum cleaner including.

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