# US 10,765,283 B2 · Bidirectional mobile cleaning device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,283 B2 - Document ID: US10765283B2 - Status: Granted - Kind: B2 - Application number: 16/100,546 - Filed: 2018-08-10 - Published: 2019-08-15 - Granted: 2020-09-08 - Earliest claimed: 2018-02-13 - Assignees: HiZero Technologies Co., Ltd. - Applicants: HiZero Technologies Co., Ltd. - Inventors: Yang Li - Web page: https://patentgrep.com/patent/US10765283B2 ## CPC - A47L 9/2847: {Surface treating elements} - A47L 11/22: Floor-sweeping machines, hand-driven - A47L 9/0072: {Mechanical means for controlling the suction or for effecting pulsating action} - A47L 9/009: {Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles} - A47L 9/2842: {Suction motors or blowers} - A47L 11/4013: {Contaminants collecting devices, i.e. hoppers, tanks or the like} - A47L 11/4041: {Roll shaped surface treating tools} - A47L 11/4088: {Supply pumps; Spraying devices; Supply conduits} - 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 2201/06: Control of the cleaning action for autonomous devices; Automatic detection of the surface condition before, during or after cleaning - 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 The disclosure relates to a bidirectional mobile cleaning device comprising a garbage collection box, a first rolling member disposed at one end of the garbage collection box, and a second rolling member disposed at the other end of the garbage collection box. The first rolling member rotates to collect and adsorb garbage and sewage on the ground and feed it into the garbage collection box. The second rolling member rotates in a direction opposite to the direction with which the first rolling member rotates to collect and absorb garbage and sewage on the ground and feed it into the garbage collection box. The bidirectional mobile cleaning device is driven to move based on a speed difference between the first and second rolling members. ## Claims ### Claim 1 A bidirectional mobile cleaning device, comprising: a garbage collection box; a first rolling member disposed at a first end of the garbage collection box, wherein the first rolling member rotates to collect garbage and sewage on the ground and feed the garbage into the garbage collection box; and a second rolling member disposed at a second end of the garbage collection box, wherein: the second rolling member rotates to collect the garbage and the sewage on the ground and feed the garbage into the garbage collection box, a direction of rotation of the second rolling member is opposite to a direction of rotation of the first rolling member, and a speed of rotation of the first rolling member relative to a speed of rotation of the second rolling member is controlled to control movement of the bidirectional mobile cleaning device. ### Claim 2 (depends on 1) The bidirectional mobile cleaning device according to claim 1, wherein: the first end of the garbage collection box is provided with a first garbage scraper lip, the first garbage scraper lip is used in cooperation with the first rolling member to feed the garbage and the sewage on the ground into the garbage collection box, the second end of the garbage collection box is provided with a second garbage scraper lip, and the second garbage scraper lip is used in cooperation with the second rolling member to feed the garbage and the sewage on the ground into the garbage collection box. ### Claim 3 (depends on 1) The bidirectional mobile cleaning device according to claim 1, comprising: a first brush member and a second brush member disposed over the garbage collection box, wherein: the first brush member is used to remove the garbage that adheres to the first rolling member from the first rolling member, and the second brush member is used to remove the garbage that adheres to the second rolling member from the second rolling member. ### Claim 4 (depends on 3) The bidirectional mobile cleaning device according to claim 3, wherein the first brush member and the second brush member are each configured to rotate. ### Claim 5 (depends on 1) The bidirectional mobile cleaning device according to claim 1, comprising: a first sewage recovery member adjacent to the first rolling member and a second sewage recovery member adjacent to the second rolling member, wherein: the first sewage recovery member is used to recover the sewage that is adsorbed on the first rolling member, and the second sewage recovery member is used to recover the sewage that is adsorbed on the second rolling member. ### Claim 6 (depends on 5) The bidirectional mobile cleaning device according to claim 5, wherein: the first sewage recovery member defines a first sink structure, a bottom of the first sewage recovery member is provided with a first pressing portion having a first convex portion that presses the first rolling member, the bottom of the first sewage recovery member defines a first through hole for communicating with a surface of the first rolling member, the second sewage recovery member defines a second sink structure, a bottom of the second sewage recovery member is provided with a second pressing portion having a second convex portion that presses the second rolling member, and the bottom of the second sewage recovery member defines a second through hole for communicating with a surface of the second rolling member. ### Claim 7 (depends on 6) The bidirectional mobile cleaning device according to claim 6, wherein: the first sewage recovery member defines a plurality of first through holes distributed in an array at the bottom of the first sewage recovery member, and the second sewage recovery member defines a plurality of second through holes distributed in an array at the bottom of the second sewage recovery member. ### Claim 8 (depends on 6) The bidirectional mobile cleaning device according to claim 6, wherein: a first water supply port is provided at a first end of the first sewage recovery member, a first sewage collection port is provided at a second end of the first sewage recovery member, a second water supply port is provided at a first end of the second sewage recovery member, and a second sewage collection port is provided at a second end of the second sewage recovery member. ### Claim 9 (depends on 1) The bidirectional mobile cleaning device according to claim 1, wherein a bottom of the garbage collection box is provided with a load-bearing wheel. ### Claim 10 (depends on 1) The bidirectional mobile cleaning device according to claim 1, wherein the first rolling member is a flexible roller or a flexible belt or a roller brush. ### Claim 11 (depends on 1) The bidirectional mobile cleaning device according to claim 1, wherein the first rolling member comprises a plurality of rolling members arranged side-by-side. ### Claim 12 (depends on 1) The bidirectional mobile cleaning device according to claim 1, wherein the first rolling member comprises a plurality of rolling members arranged in series. ### Claim 13 (depends on 1) The bidirectional mobile cleaning device according to claim 1, comprising: a first driver connected to the first rolling member and a second driver connected to the second rolling member, wherein: the first driver is used to drive the first rolling member to rotate, and the second driver is used to drive the second rolling member to rotate. ### Claim 14 (depends on 13) The bidirectional mobile cleaning device according to claim 13, wherein the first driver is an electric motor or a hydraulic driver or a pneumatic motor. ### Claim 15 (depends on 13) The bidirectional mobile cleaning device according to claim 13, wherein: a first transmission member is disposed between the first driver d the first rolling member, and the first transmission member is a helical tooth or a cone tooth or face tooth or a worm gear. ### Claim 16 (depends on 15) The bidirectional mobile cleaning device according to claim 15, wherein: a second transmission member is disposed between the second driver and the second rolling member, and the second transmission member is a helical tooth or a cone tooth or a face tooth or a worm gear. ### Claim 17 A bidirectional mobile cleaning device, comprising: a garbage collection box; a first rolling member disposed at a first end of the garbage collection box, wherein the first rolling member rotates to collect garbage on the ground and feed the garbage into the garbage collection box; and a second rolling member disposed at a second end of the garbage collection box, wherein: the second rolling member rotates to collect the garbage on the ground and feed the garbage into the garbage collection box, a direction of rotation of the second rolling member is opposite to a direction of rotation of the first rolling member, and a speed of rotation of the first rolling member relative to a speed of rotation of the second rolling member is controlled to control movement of the bidirectional mobile cleaning device. ### Claim 18 (depends on 17) The bidirectional mobile cleaning device according to claim 17, comprising: a first brush member and a second brush member disposed over the garbage collection box, wherein: the first brush member is used to remove the garbage that adheres to the first rolling member from the first rolling member, and the second brush member is used to remove the garbage that adheres to the second rolling member from the second rolling member. ### Claim 19 A bidirectional mobile cleaning device, comprising: a garbage collection box; a first rolling member disposed at a first end of the garbage collection box, wherein the first rolling member rotates to collect sewage on the ground; a second rolling member disposed at a second end of the garbage collection box, wherein: the second rolling member rotates to collect the sewage on the ground, a direction of rotation of the second rolling member is opposite to a direction of rotation of the first rolling member, and a speed of rotation of the first rolling member relative to a speed of rotation of the second rolling member is controlled to control movement of the bidirectional mobile cleaning device; a first sewage recovery member adjacent to the first rolling member, wherein the first sewage recovery member is used to recover the sewage that is adsorbed on the first rolling member; and a second sewage recovery member adjacent to the second rolling member, wherein the second sewage recovery member is used to recover the sewage that is adsorbed on the second rolling member. ### Claim 20 (depends on 19) The bidirectional mobile cleaning device according to claim 19, wherein: the first sewage recovery member defines a first sink structure, a bottom of the first sewage recovery member is provided with a first pressing portion having a first convex portion that presses the first rolling member, the bottom of the first sewage recovery member defines a first through hole for communicating with a surface of the first rolling member, the second sewage recovery member defines a second sink structure, a bottom of the second sewage recovery member is provided with a second pressing portion having a second convex portion that presses the second rolling member, and the bottom of the second sewage recovery member defines a second through hole for communicating with a surface of the second rolling member.