# US 2020/0399816 A1 · Circulating and filtering device of washing machine and washing machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0399816 A1 - Document ID: US20200399816A1 - Status: Published application - Kind: A1 - Application number: 16/956,835 - Filed: 2018-12-21 - Published: 2020-12-24 - Earliest claimed: 2017-12-22 - Assignees: Qingdao Jiaonan Haier Washing Machine Co., Ltd.; Haier Smart Home Co., Ltd. - Applicants: Qingdao Jiaonan Haier Washing Machine Co., Ltd.; Haier Smart Home Co., Ltd. - Inventors: Zhiqiang ZHAO; Sheng XU; Peishi LV - Web page: https://patentgrep.com/patent/US20200399816A1 ## CPC - D06F 39/085: {Arrangements or adaptations of pumps} - D06F 39/10: Filtering arrangements - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES ## Abstract Provided is a circulating and filtering device of a washing machine, including a circulating pump assembly, where the circulating pump assembly includes an intake water cavity and a circulating water cavity that is in communication with the intake water cavity; and a filtering assembly disposed in the intake water cavity and rotatably connected to the circulating pump assembly, where the filtering assembly includes a blade and an inner cavity, where the inner cavity is in communication with the circulating water cavity, so that water in the intake water cavity is filtered by the filtering assembly and enters the circulating water cavity. ## Claims ### Claim 1 A circulating and filtering device of a washing machine, comprising: a circulation pump assembly comprising an intake water cavity and a circulating water cavity that is in communication with the intake water cavity; and a filtering assembly disposed in the intake water cavity and is rotatably connected to the circulating pump assembly, wherein the filtering assembly comprises a blade; and an inner cavity, wherein the inner cavity is in communication with the circulating water cavity, so that the water in the intake water cavity is filtered by the filtering assembly and enters the circulating water cavity. ### Claim 2 (depends on 1) The circulating and filtering device of the washing machine according to claim 1, wherein the filtering assembly comprises a filtering body rotatably connected to the circulating pump assembly, wherein an outer wall of the filtering body is provided with the blade, and the inner cavity is disposed in the filtering body. ### Claim 3 (depends on 2) The circulating and filtering device of the washing machine according to claim 2, wherein a filtering hole is disposed on the filtering body, and in communication with the inner cavity. ### Claim 4 (depends on 2) The circulating and filtering device of the washing machine according to claim 2, further comprising a skirt structure disposed on a first end of the filtering body adjacent to the circulating water cavity, wherein the skirt structure is arranged to extend into the circulating water cavity and in communication with the circulating water cavity, and a diameter of the skirt structure gradually increases in a direction from the filtering assembly toward the circulating water cavity. ### Claim 5 (depends on 2) The circulating and filtering device of the washing machine according to claim 2, wherein a second end of the filtering body that is in non-communication with the circulating water cavity is provided with an anti-fall protrusion, and the anti-fall protrusion is clamped to a housing of the circulating pump assembly. ### Claim 6 (depends on 1) The circulating and filtering device of the washing machine according to claim 1, wherein the circulating pump assembly comprises: a circulating pump comprising a water inlet and a water outlet; and a circulating motor connected to the circulating pump and configured to drive the circulating pump to deliver circulating water into the washing machine. ### Claim 7 (depends on 6) The circulating and filtering device of the washing machine according to claim 6, wherein the circulating pump comprises a pump body and a pump cover, wherein the pump cover is rotatably connected to the filtering assembly, and the water inlet and the water outlet are disposed on the pump body, the water inlet is in communication with the intake water cavity, and the water outlet is in communication with the circulating water cavity. ### Claim 8 (depends on 1) The circulating and filtering device of the washing machine according to claim 1, further comprising a drainage assembly, wherein the drainage assembly is a drainage valve or a drainage pump assembly. ### Claim 9 (depends on 8) The circulating and filtering device of the washing machine according to claim 8, wherein the drainage assembly is the drainage pump assembly, and the drainage pump assembly comprises: a drainage pump provided with an inlet and an outlet, wherein the inlet is in communication with the intake water cavity, and the outlet is configured to perform drainage; and a drainage motor connected to the drainage pump and configured to drive the drainage pump to drain waste water out of the washing machine. ### Claim 10 A washing machine, comprising a circulating and filtering device: a circulating pump assembly comprising an intake water cavity and a circulating water cavity that is in communication with the intake water cavity; and a filtering assembly disposed in the intake water cavity and rotatably connected to the circulating pump assembly, wherein the filtering assembly comprises a blade and an inner cavity, wherein the inner cavity is in communication with the circulating water cavity, so that water in the intake water cavity is filtered by the filtering assembly and enters the circulating water cavity. ### Claim 11 (depends on 10) The washing machine according to claim 10, wherein the filtering assembly comprises a filtering body rotatably connected to the circulating pump assembly, wherein an outer wall of the filtering body is provided with the blade, and the inner cavity is disposed in the filtering body. ### Claim 12 (depends on 11) The washing machine according to claim 11, wherein a filtering hole is disposed on the filtering body, and in communication with the inner cavity. ### Claim 13 (depends on 11) The washing machine according to claim 11, further comprising a skirt structure disposed on a first end of the filtering body adjacent to the circulating water cavity, wherein the skirt structure is arranged to extend into the circulating water cavity and in communication with the circulating water cavity, and a diameter of the skirt structure gradually increases in a direction from the filtering assembly toward the circulating water cavity. ### Claim 14 (depends on 11) The washing machine according to claim 11, wherein a second end of the filtering body that is in non-communication with the circulating water cavity is provided with an anti-fall protrusion, and the anti-fall protrusion is clamped to a housing of the circulating pump assembly. ### Claim 15 (depends on 10) The washing machine according to claim 10, wherein the circulating pump assembly comprises: a circulating pump comprising a water inlet and a water outlet; and a circulating motor connected to the circulating pump and configured to drive the circulating pump to deliver circulating water into the washing machine. ### Claim 16 (depends on 15) The washing machine according to claim 15, wherein the circulating pump comprises a pump body and a pump cover, wherein the pump cover is rotatably connected to the filtering assembly, and the water inlet and the water outlet are disposed on the pump body, the water inlet is in communication with the intake water cavity, and the water outlet is in communication with the circulating water cavity. ### Claim 17 (depends on 10) The washing machine according to claim 10, further comprising a drainage assembly, wherein the drainage assembly is a drainage valve or a drainage pump assembly. ### Claim 18 (depends on 17) The washing machine according to claim 17, wherein the drainage assembly is the drainage pump assembly, and the drainage pump assembly comprises: a drainage pump provided with an inlet and an outlet, wherein the inlet is in communication with the intake water cavity, and the outlet is configured to perform drainage; and a drainage motor connected to the drainage pump and configured to drive the drainage pump to drain waste water out of the washing machine.