# US 10,501,921 B2 · Toilet and flushing control method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,501,921 B2 - Document ID: US10501921B2 - Status: Granted - Kind: B2 - Application number: 15/812,132 - Filed: 2017-11-14 - Published: 2018-09-13 - Granted: 2019-12-10 - Earliest claimed: 2017-03-08 - Assignees: Boe Technology Group Co., Ltd. - Applicants: Boe Technology Group Co., Ltd. - Inventors: Changlin Leng - Web page: https://patentgrep.com/patent/US10501921B2 ## CPC - E03D 9/002: {Automatic cleaning devices} - B05B 12/122: {responsive to presence or shape of target (B05B12/124 takes precedence)} - B05B 15/70: Arrangements for moving spray heads automatically to or from the working position - E03D 5/105: {touchless, e.g. using sensors} - E03D 11/11: Bowls combined with a reservoir, e.g. containing apparatus for disinfecting or for disintegrating - E03D: WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract The present disclosure provides a toilet and a flushing control method thereof. The toilet includes a toilet bowl, a toilet lid, a water tank, at least one image collector, at least one sprayer, and a controller. The toilet lid is arranged on the toilet bowl, the controller is arranged at any one of the toilet bowl, the toilet lid and the water tank, the image collector is arranged at a surface of the toilet lid facing the toilet bowl and communicatively connected to the controller, and the sprayer is movably arranged at the surface of the toilet lid facing the toilet bowl, connected to the water tank and communicatively connected to the controller. ## Claims ### Claim 1 A toilet, comprising: a toilet bowl; a toilet lid capable of covering the toilet bowl; a water tank; a controller arranged at any one of the toilet bowl, the toilet lid and the water tank; at least one image collector arranged at a surface of the toilet lid facing the toilet bowl and communicatively connected to the controller; and at least one sprayer movably arranged at the surface of the toilet lid facing the toilet bowl, connected to the water tank and communicatively connected to the controller, wherein a guiding rail is arranged at the surface of the toilet lid facing the toilet bowl, and the sprayer is movably arranged on the guiding rail. ### Claim 2 (depends on 1) The toilet according to claim 1, wherein the guiding rail comprises: a first guiding rail arranged at the surface of the toilet lid facing the toilet bowl; and a second guiding rail movably arranged on the first guiding rail and extending in a direction deviated from an extension direction of the first guiding rail, wherein the sprayer is movably arranged on the second guiding rail. ### Claim 3 (depends on 2) The toilet according to claim 2, wherein the first guiding rail and the second guiding rail are each of a straight line form and perpendicular to each other. ### Claim 4 (depends on 1) The toilet according to claim 1, wherein the sprayer is rotatably arranged on the toilet lid. ### Claim 5 (depends on 4) The toilet according to claim 4, wherein the sprayer is capable of rotating relative to a direction perpendicular to the toilet lid at an angle of α, and 0°≤α<90°. ### Claim 6 (depends on 5) The toilet according to claim 5, wherein 0°≤α≤45°. ### Claim 7 (depends on 2) The toilet according to claim 2, wherein the sprayer is rotatably arranged on the toilet lid. ### Claim 8 (depends on 1) The toilet according to claim 1, wherein the image collector is arranged at a center of the surface of the toilet lid facing the toilet bowl. ### Claim 9 (depends on 1) The toilet according to claim 1, wherein there is a plurality of sprayers arranged at the surface of the toilet lid facing the toilet bowl and spaced apart from each other. ### Claim 10 (depends on 1) The toilet according to claim 1, wherein the sprayer is a high-pressure water nozzle capable of spraying water at a pressure of σ, and 1.0 MPa≤σ≤2.5 MPa. ### Claim 11 (depends on 1) The toilet according to claim 1, wherein the water tank comprises a first water tank and a second water tank separated from the first water tank, the first water tank is in direct communication with an interior of the toilet bowl, and the sprayer is in communication with the second water tank through a pipe. ### Claim 12 (depends on 1) The toilet according to claim 1, wherein the image collector is movably arranged on the toilet lid. ### Claim 13 (depends on 1) The toilet according to claim 1, wherein the image collector is configured to, after the toilet is flushed, capturing an image of an interior of the toilet bowl, and transmit the captured image to the controller. ### Claim 14 (depends on 13) The toilet according to claim 13, wherein the controller is configured to: receive the captured image from the image collector; compare the captured image with a standard image to determine whether there is a difference between the captured image and the standard image; and in the case that there is the difference between the captured image and the standard image, determine that contamination exists in the toilet bowl, determine a position of the contamination in the toilet bowl according to the difference, to control the sprayer to move and spray water onto the contamination to remove the contamination. ### Claim 15 (depends on 14) The toilet according to claim 14, wherein the standard image is pre-stored in the controller. ### Claim 16 (depends on 1) A flushing control method for the toilet according to claim 1, comprising: capturing, by the image collector, an image of an interior of the toilet; transmitting, by the image collector, the captured image to the controller; and determining, by the controller, whether there is a difference between the captured image and a standard image; in the case that there is the difference between the captured image and the standard image, controlling, by the controller, the sprayer to move and spray water into the interior of the toilet bowl; and in the case that there is no difference between the captured image and the standard image, determining that contamination in the interior of the toilet has been removed.