Station of cleaning robot

Abstract

Disclosed is a station docked to a cleaning robot, the station comprising: a washing chamber for washing a pad provided on the cleaning robot; a water supply chamber in which water to be supplied to the washing chamber is stored; and a wastewater chamber for storing water introduced from the washing chamber, the wastewater chamber including a vacuum pump provided to form a negative pressure therein, a floor valve provided to open and close the vacuum pump, and a wastewater inlet provided to allow wastewater to flow in, wherein a first partition wall and a second partition wall extending in opposite directions to each other may be provided between the vacuum pump and the wastewater inlet.

Description

Cleaning robot station

[0001] The present disclosure relates to a station for washing, sterilizing, and drying a pad of a cleaning robot.

[0002] A cleaning robot is a device that automatically cleans an area by autonomously navigating through the area to be cleaned and sucking up foreign substances, such as dust, from the floor surface without user operation.

[0003] Conventional cleaning robots perform floor cleaning using a dry method of sucking up dust from the floor surface. Cleaning robots that perform dry cleaning could not suck up foreign matter adhering to the floor surface or foreign matter larger than a certain size. As a result, there was a problem where foreign matter remained on the floor surface even after the cleaning operation was completed.

[0004] Recently, research and development are underway on cleaning robots capable of not only dry cleaning by sucking up dust but also wet cleaning by wiping the floor surface with water using a pad provided on the bottom surface of the cleaning robot's main body.

[0005] A cleaning robot capable of dry cleaning and wet cleaning received power from a station and performed charging based on docking to a station.

[0006] In addition, as the cleaning robot docked at the station, the cleaning robot's pad was received into the washing chamber, where washing, sterilization, and drying of the pad were performed. For such a cleaning robot, maintenance of the washing chamber provided at the station and the wastewater chamber that stores the wastewater generated by washing the cleaning robot's pad are necessary to ensure the hygiene and cleanliness of both the cleaning robot and the station.

[0007] One aspect of the present disclosure provides a station with a reduced size of the sewage chamber.

[0008] One aspect of the present disclosure provides a station including a double partition structure so that wastewater introduced through a wastewater inlet does not flow over to the vacuum pump side.

[0009] One aspect of the present disclosure provides a station comprising a wastewater chamber having an improved drainage structure to facilitate the discharge of wastewater that has passed to the vacuum pump side.

[0010] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.

[0011] A station according to the concept of the present disclosure is a station docked to a cleaning robot, comprising a cleaning chamber for cleaning a pad provided on the cleaning robot, a water supply chamber for storing water supplied to the cleaning chamber, and a wastewater chamber for storing water introduced from the cleaning chamber, wherein the wastewater chamber comprises a vacuum pump provided to form negative pressure inside, a floor valve provided to open and close the vacuum pump, and a wastewater inlet provided to allow wastewater to flow in, and between the vacuum pump and the wastewater inlet, a first partition wall and a second partition wall extending in opposite directions are provided.

[0012] A station according to the concept of the present disclosure is a station docked to a cleaning robot, comprising: a cleaning chamber for cleaning a pad provided on the cleaning robot; a water supply chamber for storing water supplied to the cleaning chamber; and a wastewater chamber for storing water introduced from the cleaning chamber, comprising a vacuum pump provided to form negative pressure inside, a floor valve provided to open and close the vacuum pump, and a wastewater inlet provided to allow wastewater to flow in. The wastewater chamber comprises a plate portion formed on an inner surface and provided with the wastewater inlet, the vacuum pump, and the floor valve, and the plate portion is provided to be inclined multiple times so that wastewater introduced to the upper part of the plate portion is discharged.

[0013] FIG. 1 is an exemplary diagram of a cleaning system according to one embodiment of the present disclosure.

[0014] FIG. 2 is an exemplary diagram of a cleaning system station and a cleaning robot docked to the station according to one embodiment of the present disclosure.

[0015] FIG. 3 is a detailed example diagram of a cleaning robot of a cleaning system according to one embodiment of the present disclosure.

[0016] FIG. 4 is an exemplary diagram of the front area of ​​the internal area of ​​a station of a cleaning system according to one embodiment of the present disclosure.

[0017] FIG. 5 is an exemplary diagram of the rear side area of ​​the internal area of ​​a station of a cleaning system according to one embodiment of the present disclosure.

[0018] FIG. 6 is an exemplary diagram of the rear area of ​​the internal area of ​​a station of a cleaning system according to one embodiment of the present disclosure.

[0019] FIG. 7 is a perspective view of a water tank according to one embodiment of the present disclosure.

[0020] FIG. 8 is an exploded view of a water tank according to one embodiment of the present disclosure.

[0021] FIG. 9 is a top view of a water tank according to one embodiment of the present disclosure, cut along the line A-A' in FIG. 7.

[0022] FIG. 10 is a side cross-sectional view of a water tank according to one embodiment of the present disclosure, cut along the line B-B' in FIG. 9.

[0023] FIG. 11 is a side cross-sectional view of a water tank according to one embodiment of the present disclosure, cut along the line C-C' in FIG. 9.

[0024] FIG. 12 is a side cross-sectional view taken along the line C-C' in FIG. 9 of a water tank according to one embodiment of the present disclosure, showing the cover separated from the water tank.

[0025] FIG. 13 is a cross-sectional perspective view of a water tank according to one embodiment of the present disclosure, cut along the line C-C' in FIG. 9.

[0026] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and various modifications that may replace the embodiments and drawings of this specification may exist at the time of filing this application.

[0027] Additionally, the same reference numerals or symbols presented in each drawing of this specification represent parts or components that perform substantially the same function.

[0028] Additionally, the singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0029] Additionally, in this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0030] Additionally, the terms "part," "module," and "component" may be implemented in hardware or software. Depending on the embodiments, a plurality of "parts," "modules," and "components" may be implemented as a single component, or a single "part," "module," or "component" may include a plurality of components.

[0031] Furthermore, the terms used in this specification are for describing embodiments and are not intended to limit or / or restrict the disclosed invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0032] Additionally, terms including ordinal numbers, such as "first," "second," etc., used herein may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any one of a plurality of related described items.

[0033] Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0034] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0035] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0036] Meanwhile, terms such as "up-and-down direction" and "front-and-back direction" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0037] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0038] In the following, the +X direction indicated in the drawing may point to the front of the station, and the -X direction may point to the rear of the station. For example, the front of the station may be the direction in which the docked cleaning robot is located. The +Y direction indicated in the drawing may point to the left of the station, and the -Y direction may point to the right of the station. The +Z direction indicated in the drawing may point to the top of the station, and the -Z direction may point to the bottom of the station.

[0039] FIG. 1 is an exemplary diagram of a cleaning system according to one embodiment of the present disclosure. FIG. 2 is an exemplary diagram of a cleaning system station according to one embodiment of the present disclosure and a cleaning robot docked to the station. FIG. 3 is a detailed exemplary diagram of a cleaning robot of a cleaning system according to one embodiment of the present disclosure.

[0040] As illustrated in FIGS. 1 and 2, the cleaning system (1) may include a cleaning robot (100) and a station (200). The cleaning robot (100) may be referred to as a robot vacuum cleaner. The station (200) may be referred to as a cleaning robot station or a charging station.

[0041] The cleaning robot (100) can clean the floor surface of the cleaning area while moving along the floor surface of the cleaning area. The floor surface may be referred to as the surface to be cleaned.

[0042] The cleaning robot (100) can perform dry cleaning and wet cleaning. The cleaning robot (100) can also perform only wet cleaning.

[0043] When performing dry cleaning, the cleaning robot (100) can suck up dirt on the floor surface of the cleaning area. When performing wet cleaning, the cleaning robot (100) can wipe the floor surface of the cleaning area. The dirt on the floor surface can be wiped away by the cleaning robot wiping the floor surface. Here, dirt can be a general term for foreign substances such as dust, hair, and food crumbs.

[0044] The cleaning robot (100) can be mounted on the station (200). The cleaning robot (100) can be placed on the station (200). The cleaning robot (100) can be docked on the station (200).

[0045] When the cleaning robot (100) is docked at the station (200), at least a portion of the cleaning robot (100) can be placed in the receiving space (210a) formed at the station (200).

[0046] The cleaning robot (100) can move from the cleaning area to the station (200) while cleaning, or move from the cleaning area to the station (200) after cleaning is completed.

[0047] When the cleaning robot (100) moves from the cleaning area to the station (200), the state of the cleaning robot may include at least one of the following states: a state requiring charging, a state requiring emptying of dirt from the dust collection chamber, a state where the water level of the water tank (116) is below a reference level, a state where the moisture content of the pad (140) is below a reference moisture content, a state where the pad (140) needs to be washed, a state where the pad (140) needs to be sterilized, and a state where the pad (140) needs to be dried.

[0048] The station (200) can be arranged to dock with the cleaning robot (100).

[0049] The station (200) can charge the battery of the docked cleaning robot (100), collect dirt collected in the dust collection chamber of the docked cleaning robot (100), supply water to the water tank (116) of the docked cleaning robot (100), wash and sterilize the pad (140) of the docked cleaning robot (100), and allow the pad (140) of the docked cleaning robot (100) to dry.

[0050] Hereinafter, with reference to FIGS. 1 to 3, a cleaning robot that interacts with a cleaning robot station according to one embodiment of the present disclosure will be described.

[0051] As illustrated in FIG. 3, the cleaning robot (100) may include a first body (110). The first body (110) may be referred to as a vacuum cleaner body.

[0052] The first main body (110) can form the overall exterior of the cleaning robot (100). Components constituting the cleaning robot (100) can be accommodated inside the first main body (110).

[0053] The cleaning robot (100) may include a first suction port (111) provided on the lower surface of the first main body (110) and through which dirt on the floor surface is sucked in. The first suction port (111) may be referred to as the first dirt suction port.

[0054] A cleaning robot (100) may include a first exhaust port (112) for discharging air sucked in through a first suction port (111) provided in a first main body (110). The first exhaust port (112) may be an air exhaust port. The first exhaust port (112) may be provided in multiple numbers. Each of the multiple first exhaust ports (112) may be composed of multiple holes.

[0055] The cleaning robot (100) may include a first suction motor (not shown) for generating suction force. By the suction force generated by the first suction motor, air and dirt can be sucked into the cleaning robot (100) through the first suction port (111). By the suction force generated by the first suction motor, the air and dirt sucked into the cleaning robot (100) are filtered by a filter, and the air from which dirt has been removed can be discharged to the outside of the cleaning robot (100) through the first discharge port (112).

[0056] The first suction motor may be placed on the air passage formed between the first suction port (111) and the first discharge port (112). The filter may be placed on the air passage formed between the first suction port (111) and the first discharge port (112).

[0057] The cleaning robot (100) may include a dust collection chamber (115) that stores dirt and / or air sucked in through a first suction port (111).

[0058] The cleaning robot (100) may further include a water tank (116) that receives water from the station (200) and stores the supplied water when the cleaning robot (100) is provided in the first main body (110) and docked to the station (200).

[0059] The cleaning robot (100) may include a water inlet (117) provided in the first main body (110). When the cleaning robot (100) is docked to the station (200), the water inlet (117) may be connected to the station (200) and may guide water from the station (200) to the water tank (116) of the cleaning robot (100).

[0060] The cleaning robot (100) may include a plurality of wheels that are provided on the first body (110) and move the first body (110). The plurality of wheels may include at least two wheels. In the present embodiment, the first wheel (121), the second wheel (122), and the third wheel (123) are described as examples of the plurality of wheels.

[0061] The cleaning robot (100) may further include a driving motor (not shown) connected to at least one of the first and second wheels (121, 122) and generating power to rotate at least one wheel.

[0062] At least one of the first and second wheels (121, 122) can receive power from a driving motor and rotate by the transmitted power, thereby allowing the cleaning robot (100) to move forward, backward, or change its direction of movement. The first and second wheels (121, 122) may be referred to as the main wheel (121).

[0063] A third wheel (123) may be provided for the stable driving of the cleaning robot (100). The third wheel (123) may rotate in response to the movement of the first body (110). That is, the third wheel (123) may be provided so as not to be provided with separate power. The third wheel (123) may be referred to as an auxiliary wheel (122).

[0064] The cleaning robot (100) may include a brush (130) that strikes the floor surface to scatter dirt on the floor surface. The dirt scattered by the brush (130) may be introduced into the first suction port (111) along with air.

[0065] The brush (130) may include a first brush (131) disposed inside the first suction port (111) and rotatably provided relative to the first body (110), and a second brush (132) disposed adjacent to the edge of the first body (110) and rotatably provided. The first brush (131) may be referred to as the main brush (131). The second brush (132) may be referred to as the side brush (132).

[0066] The rotation axis of the second brush may be an axis in a direction perpendicular to the rotation axis of the first brush. For example, if the rotation axis of the first brush is an axis in a direction parallel to the bottom surface, the rotation axis of the second brush may be an axis in a direction perpendicular to the bottom surface.

[0067] The cleaning robot (100) may include a pad (140) provided on the lower surface of the first body (110) and provided on the first body (110). The cleaning robot (100) may include a pad motor (not shown) for rotating the pad (140).

[0068] The pad (140) can clean the floor surface by rotating it by a pad motor. The pad (140) can be detachably provided on the lower surface of the first main body (110).

[0069] The pad (140) may be rotatably provided with respect to the first main body (110). The pad (140) can wipe away dirt or stains from the bottom surface.

[0070] The pad (140) may be one or more, and there is no limit to the number of pads. The pad (140) may be referred to as a cleaning pad, a wet pad, a mop, or a wet mop.

[0071] The pad (140) can receive water from the water tank (116) when the cleaning robot is in a cleaning state or docking state.

[0072] When the cleaning robot (100) is docked at the station (200), the pad (140) can be supplied with water and steam from the station (200) and rotated by the pad motor. At this time, the pad (140) can be washed.

[0073] The cleaning robot (100) may include a battery (not shown) that supplies power required to operate the cleaning robot (100). The battery may be a rechargeable battery.

[0074] The cleaning robot (100) may include a first charging terminal (151). The first charging terminal (151) may be electrically connected to a battery. When the cleaning robot (100) is docked to the station (200), the first charging terminal (151) of the cleaning robot (100) may be electrically connected to the second charging terminal (218, see FIG. 4) of the station (200).

[0075] As the first charging terminal (151) is electrically connected to the second charging terminal (218), the battery of the cleaning robot (100) can be charged. As the cleaning robot (100) is electrically connected to the second charging terminal (218), the station (200) can recognize the docking of the cleaning robot and can charge the battery while the cleaning robot (100) is docked to the station (200).

[0076] The cleaning robot (100) may include an obstacle sensor (170) for detecting obstacles present in the cleaning area, provided in the first main body (110).

[0077] The obstacle sensor (170) can detect the location of an obstacle. The location of the obstacle may include the direction and distance of the obstacle.

[0078] The components of the cleaning robot corresponding to FIGS. 1 to 3 are merely examples of components of the cleaning robot, and the components of the cleaning robot are not limited thereto.

[0079] Hereinafter, a station according to one embodiment of the present disclosure will be described with reference to FIGS. 4 to 6.

[0080] FIG. 4 is an exemplary diagram of the front area of ​​the interior area of ​​a station of a cleaning system according to one embodiment of the present disclosure. FIG. 5 is an exemplary diagram of the rear side area of ​​the interior area of ​​a station of a cleaning system according to one embodiment of the present disclosure. FIG. 6 is an exemplary diagram of the rear area of ​​the interior area of ​​a station of a cleaning system according to one embodiment of the present disclosure.

[0081] For convenience of explanation, the description of configurations of the cleaning robot (100) that are substantially identical or similar to those described with reference to FIGS. 1 to 3 may be omitted or briefly described below.

[0082] Referring to FIGS. 4 through 6, the station (200) may include a second body (210) that forms the overall appearance of the station (200). The second body may be referred to as the station body and may be referred to as the body. The second body (210) may be provided with a receiving space (210a) for receiving at least a part of the cleaning robot (100).

[0083] The station (200) may further include a base (220) that guides the cleaning robot (100) so that at least a part of the cleaning robot (100) is accommodated in the receiving space (210a) of the station body (210).

[0084] The base (220) can be detachably coupled to the second body (210).

[0085] The base (220) may include a wheel mounting portion (223) on which the first and second wheels (121, 122) of the cleaning robot (100) are mounted. The cleaning robot (100) docked at the station (200) may not be detached from the station (200) by the wheel mounting portion (223).

[0086] The station (200) may include a second charging terminal (218) that is electrically connected to a first charging terminal (151) of the cleaning robot (100). As the second charging terminal (218) of the station (200) and the first charging terminal (151) of the cleaning robot (100) are electrically connected, the battery of the cleaning robot (100) can be charged. That is, the cleaning robot (100) can be charged while docked to the station (200).

[0087] The station (200) may include a second suction port (224) provided in the base (220). The second suction port may be referred to as a second dirt suction port. The second suction port (224) may be connected to the dust collection chamber (115) of the docked cleaning robot (100). Through the second suction port (224), dirt collected in the dust collection chamber (115) of the cleaning robot may move into the station (200).

[0088] The station (200) may include a second suction motor (225). The second suction motor (225) may generate a suction force to suck up dirt from the dust collection chamber (115). The second suction motor (225) may provide a suction force to the second suction port (224). By the suction force of the second suction motor (225), the dirt from the dust collection chamber (115) may move to the dirt chamber (303) along the second dirt suction port (224) and the dirt collection duct.

[0089] The station (200) may include a washing chamber (230).

[0090] The washing chamber (230) may be provided inside the receiving space (210a) of the second main body (210). The washing chamber (230) may be provided in the base (220). The washing chamber (230) may be provided by at least a portion of the upper surface of the base (220) being recessed downward.

[0091] The cleaning chamber (230) may accommodate the pad (140) of the docked cleaning robot. The cleaning chamber (230) may be provided with a shape corresponding to the shape of the pad (140). The cleaning chamber (230) may be a space for cleaning the pad (140) of the docked cleaning robot.

[0092] The washing chamber (230) can receive water. The washing chamber (230) can receive water from the water supply chamber (301).

[0093] The station (200) may include a cleaning frame (240). The cleaning frame (240) may be detachably mounted to the cleaning chamber (230). The cleaning frame (240) may be arranged to contact the pad (140) of the docked cleaning robot.

[0094] The cleaning robot (100) can rotate the pad (140) based on cleaning the pad (140). As the pad (140) rotates while in contact with the cleaning frame (240), the pad (140) can be cleaned by friction between the pad (140) and a plurality of protrusions.

[0095] The station (200) may include a heating device (250) disposed inside the second main body (210).

[0096] The heating device (250) can generate high-temperature water and / or steam. For example, the heating device (250) can heat water to 40°C or higher, or heat it to 100°C or higher to turn it into steam. The high-temperature water and / or steam generated by the heating device (250) can be supplied to the washing chamber (230). The high-temperature water and / or steam supplied to the washing chamber (230) can wash and sterilize the pad (140) of the cleaning robot.

[0097] The station (200) may include a water supply pipe connected to an external water source and a drainage pipe connected to an external drainage channel.

[0098] The station (200) may include a water supply chamber (301) that is connected to a water supply pipe to receive water from an external water source and receives and stores the water supplied from the external water source.

[0099] The water stored in the water supply chamber (301) can be supplied to at least one of the water tank (116) of the cleaning robot (100), the pad (140) of the cleaning robot (100), the washing chamber (230), and the heating device (250).

[0100] The station (200) may include a first water supply unit (217) connected to a water supply chamber (301). The first water supply unit (217) can supply water from the water supply chamber (301) to the cleaning robot (100).

[0101] The first water supply unit (217) of the station (200) can be connected to the water inlet (117) of the docked cleaning robot (100). Water discharged from the first water supply unit (217) can be stored in the water tank (116) of the cleaning robot (100) after flowing into the water inlet (117).

[0102] The station (200) may include a second water supply unit (241) that communicates with the washing chamber (230). The second water supply unit (241) may receive water stored in the water supply chamber (301) and supply it to the washing chamber (230). Water discharged from the second water supply unit (241) may be received in the washing chamber (230). Water discharged from the second water supply unit (241) may be used to wash the pad (140). Here, water after washing the pad (140) of the cleaning robot or water discharged after being supplied to the pad (140) may be referred to as wastewater.

[0103] The station (200) may include a wastewater chamber (302) that transfers wastewater generated at the station (200) to an external drainage channel.

[0104] The wastewater chamber (302) can receive and store wastewater discharged from the washing chamber (230). The wastewater chamber (302) can be arranged to be separated from the water supply chamber (301).

[0105] The wastewater chamber (302) and the water supply chamber (301) can be detachably mounted on the second body (210).

[0106] The user can detach the water supply chamber (301) from the second body (210) to add water to the water supply chamber (301) or to clean it. After adding water to the water supply chamber (301) or cleaning it, the user can attach the water supply chamber (301) to the second body (210).

[0107] The user can detach the wastewater chamber (302) from the second body (210) to empty or clean the wastewater chamber (302). After emptying or cleaning the wastewater chamber (302), the user can attach the wastewater chamber (302) to the second body (210).

[0108] The station (200) may include a dirt chamber (303). The dirt chamber (303) may store dirt collected from the dust collection chamber (115) of the cleaning robot (100).

[0109] The waste chamber (303) can be detachably mounted on the second body (210). The user can detach the waste chamber (303) from the second body (210) to empty or clean the waste chamber (303). After emptying or cleaning the waste chamber (303), the user can mount the waste chamber (303) back onto the second body (210).

[0110] The station (200) may include a drying device (270) that generates drying air for drying the pad (140).

[0111] The drying device (270) can provide drying air to the washing chamber (230). The drying device (270) can supply drying air to the pad (140) placed in the washing chamber (230). The drying air may be referred to as hot air or drying air. For example, after washing and / or sterilizing the pad (140), the station (200) can supply drying air to the pad (140) placed in the washing chamber (230).

[0112] The station (200) may include a drying duct (271). The drying duct (271) may guide drying air. The drying duct (271) may guide air blown by a fan (272) and heated by a heater (273) to a base (220). The drying duct (271) may be in communication with the base (220). The drying duct (271) may be in communication with a drying air supply unit (242). The drying duct (271) may be in communication with a washing chamber (230) through the drying air supply unit (242).

[0113] The station (200) may include a water supply pump (311), a first pump (21) and a second pump (22), may include a plurality of pipes, and may include at least one valve.

[0114] A valve provided in a station according to one embodiment of the present disclosure may include a first valve (23) and a second valve (24). Meanwhile, the first valve (23) and the second valve (24) are not limited by the ordinal numbers "first" and "second".

[0115] A plurality of pipes provided in a station according to one embodiment of the present disclosure may include a first pipe (201), a second pipe (202), a third pipe (203), a fourth pipe (204), a fifth pipe (205), a sixth pipe (206), a seventh pipe (207), an eighth pipe (208), and a ninth pipe (209). Here, the ordinal numbers of "first," "second," "third," "fourth," "fifth," "sixth," "seventh," "eighth," and "ninth" do not limit the configuration of each pipe.

[0116] The water supply pump (311) can be connected to the water supply chamber (301), the first valve (23), the first pipe (201), and the second pipe (202).

[0117] The water supply pump (311) can be connected to the water supply chamber (301) through the first pipe (201). The water supply pump (311) can be connected to the first valve (23) through the second pipe (202).

[0118] The water supply pump (311) can be placed between the water supply chamber (301) and the first valve (23).

[0119] The water supply pump (311) can pump water stored in the water supply chamber (301). For example, power to flow water can be generated as the internal components (e.g., piston, rotor, or impeller) of the water supply pump (311) rotate.

[0120] Water pumped by the water supply pump (311) can be delivered to at least one of the washing chamber (230), the heating device (250), the pad (140) of the cleaning robot, and the water tank (116) of the cleaning robot.

[0121] The first valve (23) can be connected to the second pipe (202), the third pipe (203), and the sixth pipe (206).

[0122] The first valve (23) can connect the second pipe (202) and the sixth pipe (206), or connect the second pipe (202) and the third pipe (203). The first valve (23) can selectively open the sixth pipe (206) and the third pipe (203).

[0123] The first valve (23) may be provided to regulate the flow of water pumped by the water supply pump (311).

[0124] The second valve (24) can be connected to the third pipe (203), the fourth pipe (204), and the fifth pipe (205).

[0125] The second valve (24) can connect the third pipe (203) and the fourth pipe (204), or connect the third pipe (203) and the fifth pipe (205). The second valve (24) can selectively open the fourth pipe (204) and the fifth pipe (205).

[0126] The second valve (24) can control the flow of water guided by the third pipe (203). That is, the second valve (24) can cause the water guided by the third pipe (203) to flow to the second water supply unit (241) or the heating device (250).

[0127] The first pump (21) can be connected to the sewage chamber (302), the seventh pipe (207), and the eighth pipe (208). The first pump (21) may be referred to as a suction pump.

[0128] The first pump (21) can be connected to the sewage chamber (302) through the seventh pipe (207).

[0129] The first pump (21) can be connected to the air discharge hole through the eighth pipe (208).

[0130] The first pump (21) can be placed between the sewage chamber (302) and the base (220).

[0131] The first pump (21) can pump air from the sewage chamber (302). The air inside the sewage chamber (302) can be discharged from the sewage chamber (302) by the first pump (21).

[0132] The wastewater in the washing chamber (230) can be collected by pumping the air inside the wastewater chamber (302) with the first pump (21). For example, when the air inside the wastewater chamber (302) is discharged to the outside, the inside of the wastewater chamber (302) becomes negative pressure, and the wastewater contained in the washing chamber (230) can flow into the wastewater chamber (302).

[0133] FIG. 7 is a perspective view of a water tank according to one embodiment of the present disclosure. FIG. 8 is an exploded view of a water tank according to one embodiment of the present disclosure.

[0134] The station (200) may include a cover (304) provided on the upper part of the wastewater chamber (302) and the water supply chamber (301). The cover (304) may be provided to cover the opening (302a) of the wastewater chamber (302).

[0135] A shielding plate (341) may be provided on the lower surface of the cover (304). In other words, the cover (304) may include a shielding plate (341) on its lower surface. The shielding plate (341) may be provided in an approximate "L" shape. The shielding plate (341) may be provided to extend downward.

[0136] The shielding plate (341) may include a first partition wall (341a) and a plate portion (341b) that are orthogonal to each other. The shielding plate (341) may include a connecting portion (341c) that is folded between the first partition wall (341a) and the plate portion (341b) to connect the first partition wall (341a) and the plate portion (341b).

[0137] When the cover (304) is installed, the first bulkhead (341a) may be arranged to be positioned on the upper side of the plate portion (320). A detailed description of the first bulkhead (341a) will be provided later in the following drawings.

[0138] The wastewater chamber (302) may be provided to store wastewater generated while cleaning the pad (140) of the cleaning robot (100). The wastewater chamber (302) may include a vacuum pump (306) and a wastewater inlet (307).

[0139] A vacuum pump (306) may be provided to create negative pressure inside the wastewater chamber (302). As negative pressure is created inside the wastewater chamber (302), a wastewater inlet (307) may be provided to allow wastewater to flow into the wastewater chamber (302).

[0140] The wastewater chamber (302) may include a floor valve that closes the vacuum pump (306) to stop the inflow of wastewater when sufficient wastewater flows in. The floor valve may be configured to close the suction port of the vacuum pump (306) as the water level of the wastewater stored in the wastewater chamber (302) rises.

[0141] A plate portion (320) may be provided on one inner side of the wastewater chamber (302). In other words, the wastewater chamber (302) may include a plate portion (320). The plate portion (320) may be formed by folding and recessing one side of the wastewater chamber (302) inward. In other words, the plate portion (320) may be formed by folding one inner side of the wastewater chamber (302) so that it protrudes inwardly from the wastewater chamber (302).

[0142] The plate portion (320) may be provided to include a flat upper surface and a side provided in a vertical direction as it protrudes from the upper part of the inner surface of the wastewater chamber (302). A vacuum pump (306), a wastewater inlet (307), and a floor valve may be provided on the upper surface of the plate portion (320).

[0143] As a vacuum pump (306) and a wastewater inlet (307) are provided on the upper surface of the plate portion (320), wastewater introduced from the wastewater inlet (307) can be partially introduced into the upper surface of the plate portion (320).

[0144] Specifically, when wastewater flows in through the inlet (307a) of the wastewater inlet section (307), the wastewater can be sprayed into the interior of the wastewater chamber (302) by the negative pressure formed inside the wastewater chamber (302). The sprayed wastewater can fall downward by gravity after colliding with the shielding plate (341) provided on the lower side of the cover (304). At this time, most of the wastewater falls to the bottom of the wastewater chamber (302) and can be stored in the wastewater chamber (302).

[0145] However, if a large amount of wastewater is introduced through the wastewater inlet (307), some of the wastewater may be introduced into the upper surface of the plate portion (320) provided at the top of the wastewater chamber (302) rather than the bottom of the wastewater chamber (302).

[0146] If wastewater flowing into the upper surface of the plate portion (320) is not discharged from the upper surface of the plate portion (320) to the lower part of the wastewater chamber (302), the foul odor of the wastewater may leak out of the wastewater chamber (302) through a vacuum pump (306) connected to the outside of the wastewater chamber (302). Accordingly, this may cause discomfort to the user.

[0147] Specifically, the plate portion (320) may be provided with a protruding projection (325) for installing a floor valve. The protruding projection (325) may be provided to protrude upward from the upper surface of the plate portion (320).

[0148] A floor valve can be provided vertically to one inner side of a wastewater chamber (302) in which a plate portion (320) is formed. Accordingly, the size of the wastewater chamber (302) according to one embodiment of the present invention can be minimized.

[0149] The floor valve can be coupled to the mounting portion (325a) of the protruding flange (325). As the floor valve is provided vertically with respect to one inner side of the wastewater chamber (302) in which the plate portion (320) is formed, the protruding flange (325) to which the floor valve is coupled can be provided parallel to one inner side of the wastewater chamber (302) in which the plate portion (320) is formed.

[0150] In other words, the protruding ridge (325) is provided at the edge of the plate portion (320) so that it can be provided between the vacuum pump (306) and the lower part of the wastewater chamber (302). Accordingly, when wastewater flowing into the upper surface of the plate portion (320) flows toward the vacuum pump (306), it may be blocked by the protruding ridge (325) and unable to flow to the lower part of the wastewater chamber (302).

[0151] Accordingly, the plate portion (320) may be provided with a drainage structure for wastewater, and the drainage structure for wastewater formed in the plate portion (320) is described in detail in the following drawings.

[0152] The wastewater chamber (302) may be provided with a partition structure to prevent wastewater flowing into the upper surface of the plate portion (320) through the wastewater inlet portion (307) from flowing toward the vacuum pump (306).

[0153] Specifically, the wastewater chamber (302) may include a partition structure provided between the vacuum pump (306) and the wastewater inlet (307). In the wastewater chamber (302), the upper space of the plate section (320) may be partitioned by the partition structure.

[0154] In other words, the wastewater chamber (302) may include a first space (327) and a second space (326) partitioned by a partition structure.

[0155] The wastewater inlet (307) may be provided in the first space (327). The vacuum pump (306) and the floor valve may be provided in the second space (326). The vacuum pump (306) may be provided inside the second space (326).

[0156] The first space (327) may be provided to be enclosed by the inner surface of the wastewater chamber (302) and the cover plate (341) of the cover (304). The second space (326) may be provided to be enclosed by the inner surface of the wastewater chamber (302) and the second partition wall (322) and the protruding ridge (325).

[0157] A wastewater chamber (302) according to one embodiment of the present invention may be provided such that wastewater flowing into the wastewater chamber (302) is prevented from flowing into a second space (326) by means of a partition structure. However, wastewater may flow into the second space (326) despite the partition structure.

[0158] Accordingly, a wastewater chamber (302) according to one embodiment of the present invention may be provided so that wastewater flowing into the second space (326) is discharged to the outside of the second space (326). The wastewater discharged to the outside of the second space (326) may be discharged to the bottom of the wastewater chamber (302) and stored in the bottom of the wastewater chamber (302).

[0159] A detailed description of the partition structure that prevents wastewater flowing into the wastewater chamber (302) from flowing into the second space (326) and the drainage structure provided to discharge the wastewater flowing into the second space (326) will be described later in the following drawings.

[0160] FIG. 9 is a top view of a water tank according to one embodiment of the present disclosure, cut along the line A-A' in FIG. 7. FIG. 10 is a side cross-sectional view of a water tank according to one embodiment of the present disclosure, cut along the line B-B' in FIG. 9. FIG. 11 is a side cross-sectional view of a water tank according to one embodiment of the present disclosure, cut along the line C-C' in FIG. 9. FIG. 12 is a diagram showing the cover separated from the water tank in the side cross-sectional view of a water tank according to one embodiment of the present disclosure, cut along the line C-C' in FIG. 9. FIG. 13 is a cross-sectional perspective view of a water tank according to one embodiment of the present disclosure, cut along the line C-C' in FIG. 9.

[0161] In the following description, for the convenience of explanation, configurations that are substantially identical or similar to those described with reference to FIGS. 7 and 8 may be omitted or briefly described.

[0162] Referring to FIGS. 9 to 13, the wastewater chamber (302) may be provided to prevent wastewater from flowing into the second space (326) where the vacuum pump (306) is provided. The wastewater chamber (302) may be provided so that if wastewater flows into the second space (326) where the vacuum pump (306) is provided, the wastewater can be easily discharged to the outside of the second space (326).

[0163] Accordingly, the wastewater chamber (302) according to one embodiment of the present invention can prevent odors from leaking out of the wastewater chamber (302) through the vacuum pump (306).

[0164] The wastewater chamber (302) may include a second partition (322) structure. Specifically, a first partition (341a) and a second partition (322) may be formed on the inside of the wastewater chamber (302).

[0165] The first partition (341a) may be provided to protrude downward from the lower surface of the cover (304) provided on the upper side of the wastewater chamber (302). In other words, the first partition (341a) may be provided to extend from the cover (304) toward the plate portion (320).

[0166] The second partition (322) may be provided to protrude upward from the upper surface of the plate portion (320) provided on the inner side of the wastewater chamber (302). In other words, the second partition (322) may be provided to extend from the plate portion (320) toward the cover (304).

[0167] The first partition (341a) and the second partition (322) may be arranged side by side at a predetermined distance from each other. The first partition (341a) and the second partition (322) may be arranged so that the upper space of the plate portion (320) is divided into a first space (327) and a second space (326).

[0168] Accordingly, the first partition (341a) and the second partition (322) can be provided to block the upper space of the plate portion (320) when the cover (304) covers the wastewater chamber (302).

[0169] In other words, at least a portion of the first bulkhead (341a) can be arranged to overlap with the second bulkhead (322) in the horizontal direction. In other words, at least a portion of the second bulkhead (322) can be arranged to overlap with the first bulkhead (341a) in the horizontal direction. Accordingly, the first bulkhead (341a) and the second bulkhead (322) can be arranged so that the upper space of the plate portion (320) is separated into a first space (327) and a second space (326).

[0170] The first partition (341a) may be provided to form one side of the first space (327). In other words, the first partition (341a) may be located on the side of the sewage inlet (307).

[0171] The second partition (322) may be provided to form one side of the second space (326). In other words, the second partition (322) may be located on the side of the vacuum pump (306).

[0172] The end of the first partition (341a) and the plate portion (320) may be arranged to be spaced apart by a predetermined distance. The end of the second partition (322) and the lower surface of the cover (304) may be arranged to be spaced apart by a predetermined distance. Accordingly, the cover (304) may be arranged to easily cover the wastewater chamber (302).

[0173] The wastewater that flows in and is sprayed through the wastewater inlet (307) can first flow into the lower part of the wastewater chamber (302) by means of the cover plate (341) provided on the lower surface of the cover (304).

[0174] Specifically, the wastewater flowing into the wastewater chamber (302) through the wastewater inlet (307) can fall downward by gravity after colliding with the cover plate (341) when sprayed.

[0175] However, as the wastewater inlet (307) is provided in the plate section (320), some of the wastewater introduced through the wastewater inlet (307) may fall or flow into the upper surface of the plate section (320). Additionally, if the amount of wastewater passing through the wastewater inlet (307) is large, the wastewater introduced into the upper surface of the plate section (320) may flow toward the second space (326) where the vacuum pump (306) is provided, as well as the first space (327) where the wastewater inlet (307) is provided.

[0176] At this time, the end of the first partition (341a) of the shielding plate (341) protruding from the cover (304) may be spaced apart from the plate portion (320). However, a second partition (322) may be provided in the plate portion (320). Accordingly, wastewater flowing into the lower side of the first partition (341a) may be blocked from flowing into the second space (326) by the second partition (322).

[0177] Accordingly, the second space (326) equipped with a vacuum pump (306) can be provided so as to prevent the inflow of wastewater.

[0178] However, the end of the second partition (322) may be spaced apart from the lower surface of the cover (304). Accordingly, if the amount of wastewater flowing in through the wastewater inlet (307) is large, some of the wastewater may pass through the first partition (341a) and the second partition (322) and flow into the second space (326).

[0179] The second space (326) can be provided so as to be enclosed on all sides by a protruding ridge (325) provided on the inner side of the wastewater chamber (302) and the end of the plate portion (320), and a second partition (322) provided on the upper surface of the plate portion (320). Accordingly, if wastewater passes through the second partition (322), the wastewater can be stored in the second space (326).

[0180] In one embodiment of the present invention, the wastewater chamber (302) may be provided with a drainage structure to discharge wastewater flowing into the second space (326) in the plate portion (320). Specifically, the plate portion (320) may be provided with a drainage groove (323) that communicates with the outside of the second space (326).

[0181] A drainage groove (323) may be provided along a protruding ridge (325). The drainage groove (323) may be provided to discharge wastewater to the outside of the second space (326) so that the wastewater is stored in the lower part of the wastewater chamber (302).

[0182] More specifically, the drainage groove (323) may be provided parallel to the protruding ledge (325). The drainage groove (323) may be formed by the plate portion (320) being recessed downward. The outlet of the drainage groove (323) may be provided between the second partition (322) and the protruding ledge (325).

[0183] The drainage groove (323) may be provided to slope downwards as it faces inward toward the sewage chamber (302). Accordingly, sewage flowing into the drainage groove (323) can be discharged outwardly along the slope of the drainage groove (323) to the second space (326) and flow into the inside of the sewage chamber (302). The sewage discharged from the drainage groove (323) can be stored in the lower part of the sewage chamber (302).

[0184] The plate portion (320) may include an inclined surface (321) provided to be inclined. In the second space (326), the plate portion (320) may be provided to be inclined toward the drainage groove (323). In other words, the inclined surface (321) may be provided to be inclined toward the drainage groove (323). In other words, the inclined surface (321) may be provided to be inclined downward as it faces the end of the plate portion (320).

[0185] Accordingly, when wastewater flows into the second space (326), the wastewater can flow into the drainage groove (323) along the inclined surface (321) of the plate portion (320), and the wastewater flowing into the drainage groove (323) can be discharged to the outside of the second space (326) along the slope of the drainage groove (323) and stored in the lower part of the wastewater chamber (302).

[0186] A protruding ridge (325) may be provided at the end of the plate portion (320). Accordingly, a drainage groove (323) may be provided at the end of the plate portion (320).

[0187] The drainage groove (323) can be provided parallel to the protruding ridge (325). Accordingly, the drainage groove (323) can be provided parallel to the inner surface of the wastewater chamber (302) where the plate portion (320) is formed.

[0188] The drainage groove (323) may be provided at a predetermined distance from the inner surface of the wastewater chamber (302) where the plate portion (320) is formed. The distance at which the drainage groove (323) is spaced from the inner surface of the wastewater chamber (302) where the plate portion (320) is formed may be approximately the same as the distance at which the plate portion (320) protrudes from the inner surface of the wastewater chamber (302) toward the inside of the wastewater chamber (302).

[0189] Accordingly, the plate portion (320) can be arranged so that the slope direction of the inclined surface (321) and the slope direction of the drainage groove (323) are perpendicular to each other. Accordingly, all wastewater flowing into the second space (326) can be discharged to the outside of the second space (326) through the drainage groove (323).

[0190] For example, the slope direction of the sloped surface (321) may be in the x-direction. That is, the sloped surface (321) may be provided to slope downward as it faces the x-direction. At this time, the slope direction of the drainage groove (323) may be in the y-direction. That is, the drainage groove (323) may be provided to slope downward as it faces the y-direction.

[0191] Accordingly, wastewater flowing into the second space (326) can all flow into the drainage groove (323) along the inclined surface (321) of the plate portion (320) and can be discharged to the outside of the second space (326) through the drainage groove (323).

[0192] Accordingly, the wastewater chamber (302) according to one embodiment of the present invention can prevent wastewater from flowing into the second space (326) where the vacuum pump (306) is located, and even if wastewater flows into the second space (326), it can prevent wastewater from accumulating in the second space (326) by discharging all wastewater to the outside of the second space (326).

[0193] A station (200) according to the concept of the present disclosure is a station (200) that is docked to a cleaning robot (100), and comprises a cleaning chamber (230) for cleaning a pad (140) provided on the cleaning robot (100), a water supply chamber (301) for storing water supplied to the cleaning chamber (230), and a wastewater chamber (302) for storing water introduced from the cleaning chamber (230), wherein the wastewater chamber (302) includes a vacuum pump (306) provided to form negative pressure inside, a floor valve provided to open and close the vacuum pump (306), and a wastewater inlet (307) provided to allow wastewater to flow in, and between the vacuum pump (306) and the wastewater inlet (307), a first partition (341a) and a second partition (322) are provided extending in opposite directions.

[0194] The above wastewater chamber (302) includes a plate portion (320) formed on the inner surface, and the wastewater inlet portion (307), the vacuum pump (306), and the floor valve may be provided on the plate portion (320).

[0195] The above wastewater chamber (302) may include a first space (327) formed on the upper part of the plate portion (320) where the wastewater inlet portion (307) is located, and a second space (326) formed on the upper part of the plate portion (320) where the vacuum pump (306) is located.

[0196] The first space (327) and the second space (326) may be arranged to be partitioned by the first partition (341a) and the second partition (322).

[0197] The wastewater flowing into the wastewater inlet (307) can be arranged so as to prevent it from flowing into the second space (326).

[0198] The apparatus further includes a cover (304) positioned above the sewage chamber (302) and arranged to cover the sewage chamber (302), and the first partition (341a) may be arranged to extend downward from the lower surface of the cover (304).

[0199] The second partition (322) may be provided to extend upward from the upper surface of the plate portion (320).

[0200] The first partition (341a) and the second partition (322) may be arranged so that at least a portion of them overlap each other in the horizontal direction.

[0201] The first partition (341a) may be formed to form one side of the first space (327), and the second partition (322) may be formed to form one side of the second space (326).

[0202] The above-mentioned floor valve is provided in a direction perpendicular to the inner surface of the wastewater chamber (302) where the plate portion (320) is formed, and the plate portion (320) may include a protruding projection (325) provided to mount the floor valve.

[0203] The above protruding ridge (325) is provided on one edge surface of the second space (326), and the plate portion (320) is provided to communicate with the outside of the second space (326) so as to discharge wastewater flowing into the second space (326), and may include a drainage groove (323) provided along the inner surface of the protruding ridge (325).

[0204] The drainage groove (323) may be provided to be inclined downward as it faces the inside of the wastewater chamber (302).

[0205] The above plate portion (320) may include an inclined surface (321) that is inclined downward as it faces the drainage groove (323).

[0206] The above plate portion (320) may be configured such that the slope direction of the inclined surface (321) and the slope direction of the drainage groove (323) are perpendicular to each other.

[0207] The above plate portion (320) may be configured so that wastewater flowing into the second space (326) flows into the drainage groove (323) along the slope of the inclined surface (321), and wastewater flowing into the drainage groove (323) is discharged to the outside of the second space (326) along the slope of the drainage groove (323).

[0208] A station (200) according to the concept of the present disclosure is a station (200) that is docked to a cleaning robot (100), and comprises a cleaning chamber (230) for cleaning a pad (140) provided on the cleaning robot (100), a water supply chamber (301) for storing water supplied to the cleaning chamber (230), and a wastewater chamber (302) for storing water introduced from the cleaning chamber (230), wherein the wastewater chamber (302) comprises a vacuum pump (306) provided to form negative pressure inside, a floor valve provided to open and close the vacuum pump (306), and a wastewater inlet (307) provided to allow wastewater to flow in, wherein the wastewater chamber (302) comprises a plate portion (320) formed on an inner surface and provided with the wastewater inlet (307), the vacuum pump (306), and the floor valve, and the plate portion (320) is above the plate portion (320). It is designed to be sloped multiple times so that the inflowed wastewater can be discharged.

[0209] The above plate portion (320) includes an inclined surface (321) that slopes downward toward the first direction and a drainage groove (323) located at the end of the inclined surface (321) and slopes downward toward the second direction, and the first direction and the second direction may be arranged to be orthogonal to each other.

[0210] The above wastewater chamber (302) includes a first space (327) formed on the upper part of the plate portion (320) where the wastewater inlet portion (307) is located, and a second space (326) formed on the upper part of the plate portion (320) where the vacuum pump (306) is located, and a plurality of partition walls may be provided between the first space (327) and the second space (326) to partition the first space (327) and the second space (326).

[0211] A first partition (341a) and a second partition (322) that block the flow of wastewater may be provided between the wastewater inlet (307) and the vacuum pump (306).

[0212] The above-mentioned wastewater chamber (302) further includes a cover (304) provided on the upper side, the first partition (341a) protrudes downward from the lower surface of the cover (304), and the second partition (322) can protrude upward from the upper surface of the plate portion (320).

[0213] According to the concept of the present disclosure, the size of the sewage chamber can be minimized by arranging the plate portion of the sewage chamber and the floor valve so that they are perpendicular to each other.

[0214] According to the concept of the present disclosure, the wastewater chamber of the station includes a first partition and a second partition provided between the vacuum pump and the wastewater inlet, thereby preventing wastewater from flowing into the second space where the vacuum pump is provided.

[0215] According to the concept of the present disclosure, the plate portion of the wastewater chamber includes an inclined surface and a drainage groove, thereby preventing wastewater flowing into the second space from being stored in the second space.

[0216] The effects according to one aspect of the present disclosure are not limited to the effects mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure pertains from the description below.

[0217] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims.

Claims

1. In a station that docks with a cleaning robot, A cleaning chamber for cleaning a pad provided in the above cleaning robot; A water supply chamber in which water supplied to the washing chamber is stored; A wastewater chamber for storing water introduced from the washing chamber, comprising: a vacuum pump arranged to form negative pressure inside, a floor valve arranged to open and close the vacuum pump, and a wastewater inlet arranged to allow wastewater to flow in; and A station in which a first partition and a second partition extending in opposite directions are provided between the vacuum pump and the wastewater inlet.

2. In Paragraph 1, The above wastewater chamber includes a plate portion formed on the inner surface, and The above wastewater inlet, the above vacuum pump, and the above floor valve are a station provided in the above plate section.

3. In Paragraph 2, The above wastewater chamber is a station comprising a first space formed on the upper part of the plate portion and where the wastewater inlet is located, and a second space formed on the upper part of the plate portion and where the vacuum pump is located.

4. In Paragraph 3, A station configured such that the first space and the second space are partitioned by the first partition and the second partition.

5. In Paragraph 4, A station provided to prevent wastewater flowing into the above wastewater inlet from flowing into the above second space.

6. In Paragraph 3, A cover positioned above the sewage chamber and arranged to cover the sewage chamber; further comprising The above first bulkhead is a station provided to extend downward from the lower surface of the cover.

7. In Paragraph 6, The above second bulkhead is a station provided to extend upward from the upper surface of the plate portion.

8. In Paragraph 7, A station in which the first bulkhead and the second bulkhead are arranged so that at least a portion of them overlap each other in the horizontal direction.

9. In Paragraph 8, A station configured such that the first partition forms one side of the first space and the second partition forms one side of the second space.

10. In Paragraph 3, The above-mentioned floor valve is provided in a direction perpendicular to the inner surface of the wastewater chamber where the plate portion is formed, and The above plate portion is a station including a protruding projection provided to mount the above floor valve.

11. In Paragraph 10, The above protruding ridge is provided on one edge surface of the above second space, and The above plate portion is provided to communicate with the outside of the second space so as to discharge wastewater flowing into the second space, and the station includes a drainage groove provided along the inner surface of the protruding ledge.

12. In Paragraph 11, A station in which the above drainage groove is inclined downward as it faces the inside of the above wastewater chamber.

13. In Paragraph 12, The above plate portion is a station including an inclined surface that is inclined downward as it faces the drainage groove.

14. In Paragraph 13, The above plate portion is a station arranged such that the slope direction of the sloped surface and the slope direction of the drainage groove are perpendicular to each other.

15. In Paragraph 14, The above plate portion is a station configured such that wastewater flowing into the second space flows into the drainage groove along the slope of the inclined surface, and wastewater flowing into the drainage groove is discharged to the outside of the second space along the slope of the drainage groove.

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