# US 2025/0082152 A1 · Automatic cleaning apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0082152 A1 - Document ID: US20250082152A1 - Status: Published application - Kind: A1 - Application number: 18/728,092 - Filed: 2022-08-08 - Published: 2025-03-13 - Earliest claimed: 2022-01-11 - Assignees: Beijing Roborock Technology Co., Ltd. - Applicants: Beijing Roborock Technology Co., Ltd. - Inventors: Haibin LI; Zhibin ZHANG; Yuqing ZHANG; Fan YANG; Zhijun LI; Gang QUAN - Web page: https://patentgrep.com/patent/US20250082152A1 ## CPC - A47L 9/1409: {Rigid filtering receptacles (dust collecting receptacles for cyclones A47L9/1683)} - A47L 9/1445: {with closure means} - A47L 9/1463: {specially adapted for rigid filtering receptacles} - A47L 9/1691: {Mounting or coupling means for cyclonic chamber or dust receptacles} - A47L 11/4013: {Contaminants collecting devices, i.e. hoppers, tanks or the like} - A47L 9/122: {flat} - A47L 11/24: Floor-sweeping machines, motor-driven - A47L 2201/00: Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation - A47L 2201/04: Automatic control of the travelling movement; Automatic obstacle detection - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract Provided is an automatic cleaning device. The automatic cleaning device includes: a mobile platform configured to automatically move on an operation surface and including an accommodating chamber, the accommodating chamber including a first chamber and a second chamber; and a cleaning module comprising a dust box detachably assembled to the accommodating chamber. The first chamber and the second chamber are sequentially arranged next to each other in an advancing direction of the automatic cleaning device, and a depth of the first chamber is greater than a depth of the second chamber. ## Claims ### Claim 1 An automatic cleaning device, comprising: a mobile platform configured to automatically move on an operation surface and comprising an accommodating chamber, the accommodating chamber comprising a first chamber and a second chamber; and a cleaning module comprising a dust box detachably assembled to the accommodating chamber, wherein the first chamber and the second chamber are sequentially arranged next to each other in an advancing direction of the automatic cleaning device, and a depth of the first chamber is greater than a depth of the second chamber. ### Claim 2 (depends on 1) The automatic cleaning device according to claim 1, wherein the dust box comprises an accommodating portion and a top cover located above the accommodating portion, and the top cover is fixedly connected to the accommodating portion. ### Claim 3 (depends on 2) The automatic cleaning device according to claim 2, wherein the top cover comprises: a first portion covering the accommodating portion, and a second portion protruding from the accommodating portion to extend outward; and wherein when the dust box is assembled to the accommodating chamber, the accommodating portion and the first portion of the top cover are accommodated in the first chamber, and the second portion of the top cover is accommodated in the second chamber. ### Claim 4 (depends on 3) The automatic cleaning device according to claim 3, wherein the first portion of the top cover comprises an edge portion protruding from an edge contour of the accommodating portion to extend outward. ### Claim 5 (depends on 4) The automatic cleaning device according to claim 4, wherein the accommodating chamber comprises a step portion extending around an edge of a top end of the accommodating chamber, and the step portion is configured to accommodate at least part of the edge portion and at least part of an outer edge of the second portion, such that an upper surface of the top cover is substantially coplanar with an upper surface of the mobile platform. ### Claim 6 (depends on 3) The automatic cleaning device according to claim 3, wherein a support structure is disposed below the second portion of the top cover, and is configured to support the second portion of the top cover, and the support structure and at least part of the accommodating portion are integrally molded. ### Claim 7 (depends on 6) The automatic cleaning device according to claim 6, wherein a surface of the second chamber comprises a groove, the groove is substantially matched with a contour of the support structure, and the groove is configured to accommodate the support structure when the second portion of the top cover is accommodated in the second chamber. ### Claim 8 (depends on 2) The automatic cleaning device according to claim 2, wherein the top cover is symmetrically disposed along a central axis in the advancing direction of the automatic cleaning device. ### Claim 9 (depends on 8) The automatic cleaning device according to claim 8, wherein the top cover has a shape of at least one or a combination of: a D-shape, a rectangle, a square, a circle, an oval, a triangle, a quadrilateral, a pentagon, a hexagon, a heptagon or an octagon. ### Claim 10 (depends on 2) The automatic cleaning device according to claim 2, wherein the dust box comprises: a first opening located in a first side wall of the dust box; a second opening located in a second side wall of the dust box opposite to the first side wall; and a filter detachably assembled to the second opening. ### Claim 11 (depends on 10) The automatic cleaning device according to claim 10, wherein the cleaning module further comprises a fan disposed below the second chamber and corresponding to the second opening, and the fan is configured to provide a suction force to suck debris into the dust box from the first opening. ### Claim 12 (depends on 1) The automatic cleaning device according to claim 1, wherein the first chamber comprises a first locking member; the second chamber comprises a second locking member; the first portion of the top cover comprises a first mating member; the second portion of the top cover comprises a second mating member; the first mating member cooperates with the first locking member for lockup; and the second mating member cooperates with the second locking member for lockup. ### Claim 13 (depends on 12) The automatic cleaning device according to claim 12, wherein the first chamber comprises a first recess at a position substantially corresponding to the first mating member, and the first recess is configured to accommodate a finger. ### Claim 14 (depends on 12) The automatic cleaning device according to claim 12, wherein a lower surface of the second chamber comprises a second recess configured to accommodate the second mating member.