EP-4736721-A2 - CLEANING APPARATUS

EP4736721A2EP 4736721 A2EP4736721 A2EP 4736721A2EP-4736721-A2

Abstract

A cleaning apparatus, including: a suction system; a separation system; a filtration system; and a garbage collection system at least including a first garbage collection cavity (16) configured to collect garbage passing through a primary separation system and a second garbage collection cavity (14) configured to collect garbage passing through a secondary separation system (4), the secondary separation system (4) includes a secondary cyclone separator (A1), and the secondary cyclone separator (A1) includes: at least one cyclone pipe (B1) configured to separate the dirty air; an airflow inlet (A2) configured to provide an inlet allowing an airflow to enter the secondary cyclone separator (A1); an overflow pipe (A3) configured to discharge the airflow from the secondary cyclone separator (A1); a front filter screen (A4) disposed perpendicular to the overflow pipe (A3) and configured to filter the airflow discharged from the overflow pipe (A3); and a front filter screen cover (A5).

Inventors

SUN, Qing
LEI, PENG
QIAO, LIANG
LIU, WANG

Assignees

Beijing Roborock Technology Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20210923

Claims (15)

A cleaning apparatus, comprising: a suction system configured to generate a suction force for sucking dirty air into the cleaning apparatus; a separation system configured to separate garbage in the dirty air, wherein the separation system comprises at least a primary separation system and a secondary separation system (4); a filtering system configured to further filter air passing through the separation system; and a garbage collection system, wherein the garbage collection system comprises at least a first garbage collection cavity (16) configured to collect the garbage passing through the primary separation system and a second garbage collection cavity (14) configured to collect the garbage passing through the secondary separation system (4); wherein the secondary separation system (4) comprises a secondary cyclone separator (A1), and the secondary cyclone separator (A1) comprises: at least one cyclone pipe (B1) configured to separate the dirty air; an airflow inlet (A2) configured to provide an inlet allowing an airflow to enter the secondary cyclone separator (A1); an overflow pipe (A3) configured to discharge the airflow from the secondary cyclone separator (A1); a front filter screen (A4) disposed perpendicular to the overflow pipe (A3) and configured to filter the airflow discharged from the overflow pipe (A3); and a front filter screen cover (A5) configured to fix the front filter screen (A4) in a front filter screen mounting groove.
The cleaning apparatus according to claim 1, wherein the front filter screen (A4) comprises a handle for holding the front filter screen (A4), to take the front filter screen (A4) out from the front filter screen mounting groove.
The cleaning apparatus according to claim 1, wherein the front filter screen cover (A5) is disposed on the secondary cyclone separator (A1) through a pivoting part (A9) disposed at one end of a diameter of the front filter screen cover (A5), and the pivoting part (A9) is configured to provide a rotary shaft for the front filter screen cover (A5) in an open state or a closed state.
The cleaning apparatus according to claim 3, wherein the front filter screen cover (A5) further comprises an operation part (A12) disposed at the other end of the diameter of the front filter screen cover (A5), and the operation part (A12) is configured to be used to open or close the front filter screen cover (A5).
The cleaning apparatus according to claim 1, wherein a rib (A10) is disposed on the front filter screen cover (A5), and the rib (A10) is configured to facilitate effective fixing of the front filter screen (A4) without affecting the airflow passing through the front filter screen (A4).
The cleaning apparatus according to claim 1, wherein the front filter screen (A4) is of a circular structure, and comprises a multi-layer filter screen in the middle, and a peripheral portion fixing the multi-layer filter screen.
The cleaning apparatus according to claim 6, wherein the front filter screen cover (A5) comprises a hollowed-out portion or a hollow portion, and an outer ring surrounding the hollowed-out portion or the hollow portion, and when the front filter screen cover (A5) is in a closed state, the outer ring is abutted against the peripheral portion of the front filter screen (A4).
The cleaning apparatus according to claim 7, wherein an area of the hollowed-out portion or the hollow portion is greater than or equal to an area of the multi-layer filter screen.
The cleaning apparatus according to claim 6, wherein an interior of the cyclone pipe (B1) is in a tapered shape, and the secondary cyclone separator (A1) further comprises: an air inlet (B3) tangentially disposed at an upper portion of the cyclone pipe (B1); an outlet located at an end of a lower portion of the cyclone pipe (B1), wherein the cyclone pipe (B1) comprises peripheral cyclone pipes (B1) arranged circumferentially; and a baffle plate (B2) extending outward between adjacent peripheral cyclone pipes (B1) along a direction away from the cyclone pipe (B1), and being substantially tangent to one of every two adjacent peripheral cyclone pipes (B1).
The cleaning apparatus according to claim 9, further comprising one or more central cyclone pipes (B1), wherein the peripheral cyclone pipes (B1) are disposed around the central cyclone pipe (B1).
The cleaning apparatus according to claim 9 or 10, wherein an airflow direction at the air inlet (B3) is substantially perpendicular to the baffle plate (B2).
The cleaning apparatus according to claim 11, wherein an outer partition plate (B8) is further disposed between adjacent peripheral cyclone pipes (B1), and the outer partition plate (B8) is connected to two adjacent peripheral cyclone pipes (B1).
The cleaning apparatus according to claim 12, wherein an inner partition plate (B7) is disposed between one or more central cyclone pipes (B1) and one or more peripheral cyclone pipes (B1) adjacent to the one or more central cyclone pipes (B1).
The cleaning apparatus according to claim 13, wherein a height at which a bottom of the inner partition plate (B7) is located is the same as a height at which a bottom of the baffle plate (B2) close to the cyclone pipe (B1) is located, and is lower than a height at which a bottom of the outer partition plate (B8) is located.
The cleaning apparatus according to claim 14, wherein exteriors of the cyclone pipes (B1) corresponding to a position where the bottom of the inner partition plate (B7) and the bottom of the baffle plate (B2) are at the same height cooperate with an airflow isolation plate (B12) to form sealing of the airflow.

Description

TECHNICAL FIELD The present invention relates to the field of cleaning robot technologies, and more particularly to a cleaning apparatus. BACKGROUND A cleaning apparatus, particularly a handheld cleaning apparatus, generally includes a plurality of separation systems, and a plurality of garbage collection cavities corresponding to the plurality of separation systems. During operation, there are sealing requirements between the separation systems. An existing sealing system between the separation systems usually forms sealing by means of pressure difference due to a pressure inside the cleaning apparatus being greater than a pressure of the external atmosphere during operation. However, such sealing depends on the uncertain pressure difference, or large-particle garbage may obstruct an operation of a sealing element between separation stages, such that the sealing performance cannot be ensured, thereby adversely affecting the separation efficiency. It should be noted that the information disclosed in the above section is only for enhancement of understanding of the background of the present invention, and therefore may contain information that does not form the prior art already known to a person skilled in the art. SUMMARY In order to overcome shortcomings of the prior art described above, an object of the present invention is to provide a cleaning apparatus. The cleaning apparatus includes: a suction system configured to generate a suction force for sucking dirty air into the cleaning apparatus;a separation system configured to separate garbage in the dirty air, wherein the separation system includes at least a primary separation system and a secondary separation system;a filtering system configured to further filter air passing through the separation system; anda garbage collection system, wherein the garbage collection system includes at least a first garbage collection cavity configured to collect the garbage passing through the primary separation system and a second garbage collection cavity configured to collect the garbage passing through the secondary separation system; wherein the secondary separation system includes a secondary cyclone separator, and the secondary cyclone separator includes: at least one cyclone pipe configured to separate the dirty air; an airflow inlet configured to provide an inlet allowing an airflow to enter the secondary cyclone separator; an overflow pipe configured to discharge the airflow from the secondary cyclone separator; a front filter screen disposed perpendicular to the overflow pipe and configured to filter the airflow discharged from the overflow pipe; and a front filter screen cover configured to fix the front filter screen in a front filter screen mounting groove. In some embodiments, the front filter screen includes a handle for holding the front filter screen, to take the front filter screen out from the front filter screen mounting groove. In some embodiments, the front filter screen cover is disposed on the secondary cyclone separator through a pivoting part disposed at one end of a diameter of the front filter screen cover, and the pivoting part is configured to provide a rotary shaft for the front filter screen cover in an open state or a closed state. In some embodiments, the front filter screen cover further includes an operation part disposed at the other end of the diameter of the front filter screen cover, and the operation part is configured to be used to open or close the front filter screen cover. In some embodiments, a rib is disposed on the front filter screen cover, and the rib is configured to facilitate effective fixing of the front filter screen without affecting the airflow passing through the front filter screen. In some embodiments, the front filter screen is of a circular structure, and includes a multi-layer filter screen in the middle, and a peripheral portion fixing the multi-layer filter screen. In some embodiments, the front filter screen cover includes a hollowed-out portion or a hollow portion, and an outer ring surrounding the hollowed-out portion or the hollow portion, and when the front filter screen cover is in a closed state, the outer ring is abutted against the peripheral portion of the front filter screen. In some embodiments, an area of the hollowed-out portion or the hollow portion is greater than or equal to an area of the multi-layer filter screen. In some embodiments, an interior of the cyclone pipe is in a tapered shape, and the secondary cyclone separator further includes: an air inlet tangentially disposed at an upper portion of the cyclone pipe;an outlet located at an end of a lower portion of the cyclone pipe,wherein the cyclone pipe includes peripheral cyclone pipes arranged circumferentially; anda baffle plate extending outward between adjacent peripheral cyclone pipes along a direction away from the cyclone pipe, and being substantially tangent to one of every two adjacent peripheral cyclone pipes. In some emb