Dry type cleaning module, dust box and cleaning equipment

Abstract

The utility model provides a dry-type cleaning module, a dust box and cleaning equipment, the dry-type cleaning module comprises the dust box and a rolling brush, and the dust box is at least provided with a dust inlet and a dust outlet. The rolling brush is provided with a fixed end and a free end, the fixed end of the rolling brush is rotatably arranged in a rolling brush cavity at the bottom of a machine body of the cleaning equipment, and the free end is suspended in the rolling brush cavity; the dust inlets are distributed close to the free end relative to the fixed end; a gap is reserved between the free end and one end of the rolling brush cavity in the axial direction of the rolling brush, and the gap is communicated with the dust inlet; when the rolling brush rotates along with the rolling brush, garbage wound on the rolling brush moves from the fixed end to the free end and falls into the gap, and under the action of the first negative pressure, the garbage in the gap is sucked into the dust box through the dust inlet. And under the action of the second negative pressure, the air flow passes through the dust inlet and drives the garbage in the dust box towards the dust discharge port, so that the garbage is discharged from the dust discharge port. According to the dry type cleaning module, garbage winding on the rolling brush can be reduced, and the use effect of a user is improved.

Description

Technical Field

[0001] The present application relates to the field of household cleaning technology, and in particular to a dry cleaning module, a dust box and a cleaning device. Background Art

[0002] The dry cleaning module of existing household cleaning equipment includes a roller brush, a dust box and a main fan. The two ends of the roller brush are rotatably arranged in a roller brush cavity at the bottom of the cleaning device body; the roller brush cavity is connected to the dust inlet of the dust box. Under the action of the negative pressure generated by the main fan, the garbage cleaned by the roller brush is sucked into the dust box through the dust inlet of the dust box.

[0003] When the robot is cleaning, the roller brush is rotating and hair is easily entangled on the roller brush. The hair entangled on the roller brush affects the normal rotation of the roller brush. When the hair is entangled too much, the roller brush cannot clean the floor. On the other hand, the entangled hair is difficult to be sucked into the dust box. People need to manually remove the roller brush from the roller brush cavity and manually clean the hair, which results in poor user experience.

[0004] Therefore, it is urgent to provide a cleaning device to solve at least one of the above-mentioned technical problems. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present application provide a dry cleaning module, a dust box and a cleaning device to reduce the entanglement of garbage on the roller brush and improve the user experience.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] The present invention provides a cleaning device, comprising:

[0008] The first embodiment of the present application provides a dry cleaning module, comprising:

[0009] A dust box having at least a dust inlet and a dust outlet;

[0010] A roller brush having a fixed end and a free end, wherein the fixed end of the roller brush is rotatably disposed in a roller brush cavity at the bottom of the cleaning device body, and the free end is suspended in the roller brush cavity; the dust inlet is distributed relative to the fixed end and close to the free end;

[0011] Along the axial direction of the roller brush, a gap is reserved between the free end and one end of the roller brush cavity, and the gap is communicated with the dust inlet;

[0012] The garbage wrapped around the roller brush moves from the fixed end toward the free end as the roller brush rotates and falls into the gap. Under the action of the first negative pressure, the garbage in the gap is sucked into the dust box through the dust inlet.

[0013] Under the action of the second negative pressure, air flows through the dust inlet, driving the garbage in the dust box toward the dust outlet, so that the garbage is discharged from the dust outlet.

[0014] When the dry cleaning module of the cleaning device is cleaning the floor, as the roller brush rotates, garbage entangled on the roller brush can be moved toward the free end of the roller brush as the roller brush rotates. Due to the gap reserved between the free end of the roller brush and the end of the roller brush chamber, the garbage moved to the free end falls into this gap. Under the action of the first negative pressure, the garbage falling into the gap is sucked into the inner cavity of the dust box through the dust inlet, thereby reducing or preventing garbage entanglement on the roller brush and ensuring that the roller brush can rotate normally to clean the floor during the cleaning process. Compared with existing solutions for garbage entanglement on the roller brush, the user does not need to manually clean the garbage entangled on the roller brush, thereby improving the user experience. Therefore, this embodiment can simultaneously clean the garbage entangled on the roller brush during the floor cleaning process, thereby improving garbage cleaning efficiency. Furthermore, when the garbage in the dust box of the dry cleaning module needs to be discharged, the first negative pressure is deactivated. Under the action of the second negative pressure, outside air enters the dust box through the dust inlet, and the garbage moves from the dust inlet of the dust box toward the dust outlet, and is discharged from the dust box through the dust outlet. In other words, the dust inlet of the dust box serves two functions: during the cleaning process, the dust inlet allows garbage to enter the dust box; during the dust discharge process, the dust inlet allows outside air to enter the dust box and carry the garbage in the dust box out toward the dust outlet. This makes the dust box structure simple and compact, and occupies less space in the robot body. Otherwise, the dust box would need to be provided with a dust inlet and an air inlet to allow outside air to enter the dust box during the dust discharge process, thereby facilitating the discharge of garbage.

[0015] Optionally, the dust box is arranged in a dust box cavity inside the body; the dry cleaning module also includes a roller brush cover arranged at the bottom of the chassis of the body, and the roller brush cover has the roller brush cavity; the gap is reserved between the free end and one end of the roller brush cover; the roller brush cover is provided with a first opening, and the gap is distributed close to or adjacent to the first opening, and is connected to the dust inlet through the first opening.

[0016] Optionally, the dry cleaning module also includes a sealing connector having a fluid channel; one end of the sealing connector is sealedly connected to the first opening, and the other end passes through the chassis and extends into the dust box cavity, and is sealed and connected to the dust inlet of the dust box, so that the gap is connected to the inner cavity of the dust box through the fluid channel.

[0017] Optionally, the dry cleaning module also includes a main fan; the dust box is provided with an exhaust port, the main fan is arranged on the exhaust port and is located outside the dust box, the main fan is used to generate the first negative pressure in the dust box, and the exhaust port is located between the dust inlet and the dust exhaust port.

[0018] Optionally, the dust exhaust port can be connected to an air outlet end of a dust collecting fan on the base station, and the dust collecting fan generates the second negative pressure.

[0019] Optionally, the dust inlet is provided on the front side wall of the dust box, the air outlet is provided on the rear side wall of the dust box, the dust outlet is provided on the side wall between the front side wall and the rear side wall, and the dust inlet is distributed at the right end of the front side wall;

[0020] An air duct is formed in the dust box from the dust inlet to the dust outlet.

[0021] Optionally, at least a portion of the inner surface of the side wall of the dust box where the air duct is located is a surface that smoothly transitions from the dust inlet to the dust outlet.

[0022] Optionally, the dust box further includes a first arc-shaped portion, and the bottom of the front side wall and the bottom of the dust box are connected via the first arc-shaped portion;

[0023] The upper surface of the first arc-shaped portion is a first arc-shaped surface, and the inner surface of the front side wall and the upper surface of the bottom of the dust box form a smooth transition connection through the first arc-shaped surface.

[0024] Optionally, the dust box further comprises a first side wall provided on one end of the dust outlet, the first side wall being located between the front side wall and the rear side wall; and further comprising a second arcuate portion, the inner surface of the second arcuate portion being a second arcuate surface; the first side wall and the front side wall are connected via the second arcuate portion;

[0025] The second curved surface is used to smoothly transition between at least a portion of the inner surface of the front side wall and the inner surface of the first side wall, so that at least a portion of the front side wall where the air duct is located and the first side wall form a smooth transition surface from the dust inlet to the dust outlet.

[0026] Optionally, the dust box further includes a second side wall provided on one end of the dust inlet, the second side wall being located between the front side wall and the rear side wall; further including a third curved portion and a fourth curved portion, the inner surface of the third curved portion being a third curved surface, the second side wall and one end of the rear side wall being connected via the third curved portion; the inner surface of the fourth curved portion being a fourth curved surface, the other end of the rear side wall being connected to the dust outlet via the fourth curved portion;

[0027] The third curved surface is used to smoothly transition the inner surface of one end of the rear side wall to the inner surface of the second side wall, and the inner surface of the other end of the rear side wall is smoothly transitioned to the dust exhaust port through the fourth curved surface, so that the second side wall and the rear side wall where the air duct is located form a smooth transition surface from the dust inlet to the dust exhaust port.

[0028] Optionally, the front side wall includes a first front wall and a second front wall, the bottom of the second front wall is fixed to the top of the first front wall, the bottom of the first front wall is connected to the bottom of the dust box, and the top of the second front wall is connected to the top of the dust box; the dust inlet is provided on the first front wall;

[0029] The inner surface of the second front wall is transitionally connected to the inner surface of the first side wall through the second arc-shaped surface, and at least a portion of the bottom of the second arc-shaped portion is connected to the first front wall.

[0030] Optionally, the bottom of the inner surface of the first front wall is smoothly connected to the upper surface of the bottom of the dust box through a first curved surface.

[0031] A first angle is formed between the first front wall and the surface to be cleaned, and a second angle is formed between the second front wall and the surface to be cleaned. The first angle is smaller than the second angle.

[0032] Optionally, the second front wall includes at least a first section and a second section, and the first section and the second section are smoothly transitioned and connected; the dust inlet is close to the first section and distributed below the first section; the first section and the second section are respectively spaced apart from the rear side wall by a first spacing and a second spacing, and the first spacing is greater than the second spacing, so that the first longitudinal cross-sectional area formed between the first section and the rear side wall is greater than the second longitudinal cross-sectional area formed between the second section and the rear side wall.

[0033] Optionally, the front side wall and the right side end of the bottom of the dust box have a raised portion protruding toward the inner cavity of the dust box;

[0034] The raised portion is located below the dust inlet, and the upper surface of the raised portion is a smooth curved surface; the front end of the raised portion is connected to the dust inlet, and the rear end extends along the direction of the third curved surface. Under the action of the first negative pressure or the second negative pressure, the smooth curved surface of the raised portion is used to guide the garbage entering from the dust inlet to flow from the smooth curved surface toward the rear side wall.

[0035] Optionally, the front end of the raised portion is connected to the dust inlet, and the rear end extends along the third curved surface to the bottom of the rear side wall and is located on the right side of the exhaust port of the rear side wall.

[0036] Optionally, the front end of the raised portion is connected to a bottom portion of the dust inlet.

[0037] Optionally, the rear end of the smooth curved surface of the raised portion is smoothly transitionally connected to the inner surface of the rear side wall; and / or

[0038] The smooth curved surface of the raised portion is smoothly transitionally connected to the bottom of the third arc-shaped surface; and / or

[0039] The smooth curved surface of the raised portion is smoothly transitionally connected to the upper surface of the front side wall and the bottom of the dust box.

[0040] The inner surface of the top of the dust box is provided with a drainage boss protruding downward toward the inner cavity of the dust box;

[0041] The rear end of the drainage boss is connected to the top of the dust outlet, and the front end extends forward along the second arc surface; the lower surface of the drainage boss is a smooth curved surface, which is lower than the inner surface of the top of the dust box adjacent thereto.

[0042] The second embodiment of the present application provides a dust box, comprising

[0043] A box body, wherein a dust inlet is provided on the front side wall of the box body, and a dust outlet is provided on the side wall of the box body located between the front side wall and the rear side wall; an air duct is formed in the box body from the dust inlet to the dust outlet; and at least a portion of the inner surface of the side wall of the box body where the air duct is located has a smooth transition surface from the dust inlet to the dust outlet;

[0044] Under the action of the first negative pressure, the garbage is sucked into the air duct through the dust inlet; under the action of the second negative pressure, the airflow through the dust inlet drives the garbage in the box toward the dust outlet, so that the garbage is discharged from the dust outlet.

[0045] Optionally, the box body further comprises a first arc-shaped portion, and the bottom of the front side wall and the bottom of the box body are connected via the first arc-shaped portion;

[0046] The upper surface of the first arc-shaped portion is a first arc-shaped surface, and the inner surface of the front side wall and the upper surface of the bottom of the box body form a smooth transition connection through the first arc-shaped surface.

[0047] The smooth transition surface can avoid the inner surface of the air duct formed by the box body having sharp corners, reduce fluid resistance, and better guide the garbage to flow toward the dust exhaust port with the air flow. Then the second negative pressure can more fully bring out the garbage in the air duct and reduce the amount of garbage remaining in the air duct.

[0048] A third embodiment of the present application provides a cleaning device, comprising

[0049] body;

[0050] The dry cleaning module according to any embodiment of the first aspect;

[0051] The dust exhaust port can be connected to a dust collecting fan on the base station, and the dust collecting fan is used to generate the second negative pressure.

[0052] The cleaning device provided in the embodiment of the present application has the same beneficial effects as the dry cleaning module provided in the above embodiment, which will not be repeated here.

[0053] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the cleaning modules, cleaning equipment, and cleaning systems provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0055] Figure 1 A bottom view schematic diagram of a cleaning device provided in some embodiments of the present application;

[0056] Figure 2 This is a structural schematic diagram of an auxiliary cleaning component in some embodiments of the present application that is arranged on the machine body and is located in an initial position;

[0057] Figure 3 This is a schematic diagram of the internal layout of some embodiments of the present application in which auxiliary components are arranged on the fuselage and located along the edge;

[0058] Figure 4 for Figure 1 Schematic diagram of some structures of the cleaning equipment;

[0059] Figure 5 for Figure 1 An exploded view of the local structure of the roller brush chamber in the cleaning equipment;

[0060] Figure 6 This is a schematic structural diagram of the lower cover of the roller brush in some embodiments of the present application;

[0061] Figure 7 This is a structural diagram of the roller brush when it is installed on the roller brush cover in some embodiments of the present application; Figure 8 for Figure 1 Schematic diagram of the structure of the roller brush cover in the cleaning equipment;

[0062] Figure 9 This is a schematic structural diagram of a sealing connector in some embodiments of the present application;

[0063] Figure 10 This is a schematic diagram of a partial structure of the cleaning device after the sealing connector, chassis and roller brush are assembled in some embodiments of the present application;

[0064] Figure 11 for Figure 1 A partial structural cross-sectional view of the location of the sealing connection in the cleaning equipment; Figure 12 This is a schematic diagram of the structure of the dust box in some embodiments of the present application;

[0065] Figure 13a Different from Figure 12 A schematic structural diagram of the dust box from another perspective is shown;

[0066] Figure 13b This is a schematic diagram of the structure of the dust box from a top view in some embodiments of the present application;

[0067] Figure 14 for Figure 12 The cutting direction is roughly along the direction of travel of the cleaning equipment;

[0068] Figure 15 for Figure 12 Schematic diagram of the local structure from one perspective;

[0069] Figure 16 for Figure 12 Schematic diagram of the local structure from another perspective;

[0070] Figure 17 This is a schematic diagram of the inner surface structure of the top of the dust box in some embodiments of the present application;

[0071] Figure 18 for Figure 12 The cutting direction is roughly along the horizontal direction.

[0072] Description of reference numerals:

[0073] 10. Cleaning device; 100. Body; 101. Chassis; 102. Upper housing; 103. Dust suction port; 1031. Gap between the free end of the roller brush and one end of the roller brush chamber;

[0074] 200, dry cleaning module; 201, roller brush; 2011, fixed end; 2012, free end; 202, dust box; 2021, dust inlet; 2022, dust outlet; 2023, air outlet; 203, main fan; 204, dust box cavity; 205, roller brush cavity; 206, roller brush upper cover; 2061, first opening; 207, roller brush lower cover;

[0075] 210, front side wall; 211, first front wall; 212, second front wall; 2121, first section; 2122, second section; 2123, third section; 220, rear side wall; 230, first side wall; 240, second side wall; 250, bottom surface of dust box; 260, box body; 261, first curved surface; 262, second curved surface; 263, third curved surface; 264, fourth curved surface; 265, fifth curved surface; 266, sixth curved surface; 270, raised portion; 280, inner surface of the top of dust box; 281, drainage boss; 282, sealing connector; 2821, fluid channel of the sealing connector; 2822, annular protrusion;

[0076] 300-main cleaning module; 310-main cleaning assembly; 311-main cleaning part; 316, filter assembly;

[0077] 400, side brush;

[0078] 500- auxiliary cleaning module; 510- auxiliary cleaning assembly; 511- auxiliary cleaning part;

[0079] 512- auxiliary cleaning disc;

[0080] 700-driving wheel;

[0081] A-initial position; C-edge position. DETAILED DESCRIPTION

[0082] The cleaning device 10 of the present application can be a self-propelled cleaning robot or a handheld floor scrubber. The cleaning device can be a dual-purpose cleaning robot for wet and dry use. For example, the cleaning device can be a mopping robot or a sweeping and mopping robot. The following description will take a sweeping and mopping robot as an example.

[0083] In some embodiments, the cleaning device includes a body 100 and a wet cleaning module located at the bottom of the body 100. The wet cleaning module includes at least one cleaning component, and the cleaning module is used for wet cleaning. The cleaning component can be one, such as a cleaning tray or a flat mop. Alternatively, the cleaning components can be two (e.g., two cleaning trays). In some embodiments, the cleaning component includes a cleaning tray and a cleaning member mounted at the bottom of the cleaning tray. Without limitation, the cleaning member is a rag.

[0084] Please refer to Figure 1 and Figure 2 As shown, the cleaning device 100 includes a dry cleaning module in addition to the wet cleaning module, wherein the robot 100 moves along the forward direction of the body 110 (such as along the Figure 1The dry cleaning module is located in front of the cleaning device 200; the dry cleaning module is used to clean the floor; the wet cleaning module is used to wet-mop the cleaned floor, that is, the wet cleaning module, thereby forming a sweep-first-then-mop mode to clean the surface to be cleaned.

[0085] In this application, combined Figure 1 As shown, "front" refers to the direction of travel of the cleaning device. "Back" is the opposite direction of "front," and "left" is the direction of the cleaning device as viewed from above when cleaning the surface. "Right" is the opposite direction of "left." Similarly, "up," "down," "vertical," "horizontal," "top," "bottom," "inside," and "outside" indicate directions or positional relationships based on the direction or positional relationship of the cleaning device as viewed from above.

[0086] In some embodiments, please refer to Figure 1 and Figure 2 As shown, the cleaning device also includes a side brush 400. Along the forward direction of the body 100, the side brush 400 is arranged in front of the dry cleaning module 200, and the side brush 400 can rotate to gather the garbage on the ground to the inside of the cleaning device. In this way, the dry cleaning module 200 can collect the garbage gathered to the inside of the cleaning device into the dust box 202 in the body 100 by suction or other means.

[0087] For example, the side brush 400 can be located in front of the dry cleaning module 200 and near the edge of the body 100. For example, the side brush 400 can be located at the edge of a position including but not limited to the left front or right front of the dry cleaning module 200. When the side brush 400 rotates, at least a portion of the side brush 400 is located outside the outline of the body 100. In this way, the side brush 400 can gather garbage outside the outline of the body 100 to the inside of the cleaning device, thereby increasing the cleaning range. The side brush 400 can be a rubber strip or a bristle brush, etc., as long as it can clean the floor, and there is no limitation here.

[0088] The fuselage 100 is generally formed in a circular, D-shaped, rectangular, or other shape. The outline of the fuselage 100 refers to the circular outline, D-shaped outline, or rectangular outline of the fuselage 100. For example, Figure 1 and Figure 2 In the figure, the outline of the fuselage 100 is a circular structure; illustratively, the range of the outline of the fuselage 100 can be determined according to the projection of the fuselage 100 on the horizontal plane.

[0089] As for the fuselage 100 , the fuselage 100 generally includes at least a chassis 101 and an upper shell connected to the chassis 101 . The chassis 101 and the upper shell form an inner cavity of the fuselage 100 to form a receiving cavity.

[0090] In some embodiments, please refer to Figure 1 and Figure 2 As shown, the dry cleaning module 200 includes at least a roller brush 201, a dust box 202 and a main fan 203. The roller brush 201 can be rotated in a roller brush cavity 205 on the bottom of the chassis 101, so that the cleaning device can clean the garbage on the ground in the direction of travel. The roller brush 201 can be one or two roller brushes 201. The dust box 202 and the main fan 203 are respectively arranged in the inner cavity of the body 100. The main fan 203 is configured to provide negative pressure wind force to the dust box 202. The body 100 is provided with a dust suction port 103 connected to the dust box 202, for example, Figure 10 As shown, a dust box cavity 204 is provided within the machine body. A dust suction port 103 is provided on the chassis 101 of the machine body where the dust box cavity 204 is located. The dust box 202 is located within the dust box cavity 204. One end of the dust suction port 103 is connected to the roller brush cavity 205, and the other end is connected to the inner cavity of the dust box. In this way, the roller brush 201 is used to collect garbage on the ground into the dust suction port 103. Negative pressure suction can collect garbage and dust particles through the dust suction port 103 into the inner cavity of the dust box 202, thereby achieving the purpose of cleaning the ground. The main fan 203 includes, but is not limited to, a negative pressure fan and can also be replaced with other negative pressure generating devices, such as a vacuum pump.

[0091] The robot also includes a walking system for driving the body 100 to move and realize the self-moving walking function on the surface to be cleaned. The walking system includes at least a driver and a driving wheel 700, and the driver drives the driving wheel 700 to move. There can generally be two driving wheels 700, and the two driving wheels 700 are symmetrically arranged on the bottom of the body 100. In addition, the walking system can be swingably arranged on the body 100 so that the cleaning device 10 has the function of overcoming obstacles during the walking process. Among them, the surface to be cleaned can be, but is not limited to, the surface or scene of an object such as the ground, a table, glass, or a wall. For ease of description, the surface to be cleaned below is described using the ground as an example.

[0092] The perception system includes a light distribution device (LDS) located above the body 100, a bumper and visual sensor located at the front of the body 100, edge sensors located on the front sidewalls of the body 100, and ultrasonic sensors and downward-looking sensors located at the bottom of the body 100. The LDS, bumper, and edge sensors all measure distance to determine the distance between the edge of the body 100 and obstacles. The control system uses this distance to control the cleaning device 10 to perform corresponding actions, such as obstacle avoidance and edge cleaning. The ultrasonic sensor is used to identify carpet signals. Based on these signals, the control system controls the main cleaning component 310 and auxiliary cleaning component 510 of the cleaning device 10 to lift, or to control the cleaning device 10 to return to the base station for charging, dust collection, cleaning of the main cleaning component 311, and removal and installation of the main cleaning component 310. The visual sensor is used to image the environment in which the cleaning device 10 is located to obtain obstacle information. Based on this information, the control system controls the cleaning device 10 to perform actions, such as obstacle avoidance, obstacle traversal, and edge cleaning.

[0093] Cleaning device 10 also includes at least a water replenishment mechanism for replenishing water to the aforementioned cleaning element, thereby moistening the cleaning element. This allows the rag to be wet or damp when mopping the floor, resulting in wet cleaning, which improves cleaning effectiveness. The water replenishment mechanism includes at least a water tank 600, which delivers water from tank 600 to a delivery mechanism on the cleaning element. The cleaning element, while moist or damp, mops the floor, achieving wet cleaning, which improves cleaning effectiveness.

[0094] In one embodiment, Figure 1 and Figure 2 As shown, the aforementioned dry cleaning module includes a main cleaning module and an auxiliary cleaning module. Without limitation, the main cleaning assembly 310 does not swing relative to the main body 100, and no swinging structure is required within the main body 100 to drive the main cleaning assembly 310 to swing. Therefore, the driving structure of the main cleaning assembly 310 only needs to be configured to drive the main cleaning assembly 310 in lifting and mopping motions. For example, the mopping motion can be the rotation of the main cleaning disc or the reciprocating vibration or twisting of the flat mop.

[0095] The auxiliary cleaning assembly 510 can swing relative to the main body 100 to switch between an initial position A and an edge position C. In the edge position C, at least a portion of the auxiliary cleaning assembly 510 extends beyond the maximum width edge of the main body 100 to perform edge cleaning on obstacles, walls, and other edges. When the auxiliary cleaning assembly 510 is in the initial position A, the auxiliary cleaning assembly 510 can be located within the maximum projection of the edge of the main body 100, or at least a portion of the auxiliary cleaning assembly 510 can be located outside the edge of the main body 100.

[0096] The area of the auxiliary cleaning assembly 510 is smaller than that of the main cleaning assembly 310. For example, the area of the auxiliary cleaning assembly 510 is smaller than three-quarters of the area of the main cleaning assembly 310, or smaller than one-half of the area of the main cleaning assembly 310; or smaller than one-third, one-quarter, one-fifth of the area of the main cleaning assembly 310, etc. The size relationship between the two areas can be selected according to needs, thereby driving the swing, lifting and mopping motions of the auxiliary cleaning assembly 510, requiring a small swing space, and being applicable to all models currently on the market, such as round cleaning disc mopping and flat mopping.

[0097] For example, the auxiliary cleaning component 510 includes an auxiliary cleaning disc 512 and an auxiliary cleaning member 511, and the main cleaning component 310 includes a mounting base 312 and a main cleaning member 311. The above-mentioned area size relationship. In one embodiment, the area of the auxiliary cleaning disc 512 and the mounting base 312 can be compared, for example, the area of the auxiliary cleaning disc 512 is smaller than the area of the mounting base 312; another embodiment can be compared, for example, the area of the auxiliary cleaning member 511 and the main cleaning member 311 is smaller than the area of the main cleaning member 311. That is, when the main cleaning member 311 and the auxiliary cleaning member 511 are both rags, the main cleaning member 311 forms a large rag for cleaning, and the auxiliary cleaning member 511 forms a small rag for cleaning. In the non-edge mode, the large rag is mainly used for cleaning; in the edge position C, the small rag is used for cleaning, and the main cleaning member 311 and the auxiliary cleaning member 511 cooperate to achieve the function of cleaning the floor.

[0098] By retracting and swinging the auxiliary cleaning component 510 inward and outward, it is possible to switch between the edge position C and the initial position A, and perform edge cleaning at the edge position C; at the same time, there is no need for the main cleaning component 310 to swing as a whole, so that the structure of the entire cleaning module is simple and compact, and the space occupied is small, which facilitates the miniaturization of the robot.

[0099] In some embodiments, the auxiliary cleaning module 500 further includes a first driving structure 520 for driving the auxiliary cleaning assembly 510 to swing so as to switch between the initial position A and the edge position C.

[0100] For example, the first driving structure 520 includes a first driving motor, a swing arm 524, and at least one first elastic member 522. Under the cooperation of the first driving motor 521 and the first elastic member 522, the swing arm 524 is driven to swing, thereby driving the auxiliary cleaning assembly 510 to swing, so as to switch between the edge position C and the initial position A.

[0101] Since the swing arm 524 and the auxiliary cleaning assembly 510 swing synchronously, the aforementioned initial position A and edge position C can also be said to have the initial position A and edge position C of the swing arm 524 .

[0102] The main cleaning module 300 and the auxiliary cleaning module 500 are both located at the rear of the main body 100, and the side brush 400 is located at the front of the main body 100. In the forward direction of the main body 100, the side brush 400 and the auxiliary cleaning module 500 are both located on the same side of the main body 100. For example, they are both located on the right side of the main body 100 to form a right edge, or they are both located on the left side of the main body 100 to form a left edge.

[0103] Along the forward direction of the fuselage 100 , the main cleaning assembly 310 and the auxiliary cleaning assembly 510 are located behind the roller brush 201 , which facilitates the cleaning operation of first dry sweeping and then wet mopping of the cleaning equipment, and also facilitates the layout of the internal space of the fuselage 100 .

[0104] The cleaning device 10 also includes a second driving structure 340, which is arranged on the body 100 and is used to drive the main cleaning component 310 to move to mop the floor; and also includes a first lifting structure 330, which is used to drive the cleaning component to perform lifting and lowering movements so that the main cleaning component 310 is in a mopping position or a raised position.

[0105] Alternatively, as a variation, the wet cleaning module may include a main cleaning module without an auxiliary cleaning module. The main and auxiliary cleaning modules 500 may include two main cleaning components, one of which may be swung outward relative to the main body, having an initial position and an edge position, while the other may not be swung relative to the main body. For example, the main cleaning component may include a cleaning tray and a rag attached to the bottom of the cleaning tray. The rotation of the cleaning tray causes the rag to rotate and mop the floor.

[0106] As a variation, the cleaning device may not be provided with a wet cleaning module, but only with a dry cleaning module.

[0107] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0108] Example 1

[0109] like Figures 1 to 3 As shown, the dry cleaning module provided in this embodiment includes a dust box 202 and a roller brush 201, and the dust box 202 has at least a dust inlet 2021 and a dust outlet 2022. Figure 4 and Figure 7As shown, the roller brush 201 has a fixed end 2011 and a free end 2012. The fixed end 2011 of the roller brush 201 is rotatably disposed in the roller brush cavity 205 at the bottom of the body 100 of the cleaning device, and the free end 2012 is suspended in the roller brush cavity 205; the dust inlet 2021 is distributed close to the free end 2012 relative to the fixed end 2011; along the axial direction of the roller brush 201, a gap 1031 is reserved between the free end 2012 and one end of the roller brush cavity 205, and the gap 1031 is connected to the dust inlet 2021; the garbage wrapped around the roller brush 201 moves from the fixed end 2011 toward the free end 2012 as the roller brush 201 rotates and falls into the gap 1031, and under the action of the first negative pressure, the garbage in the gap 1031 is sucked into the dust box 202 through the dust inlet 2021. Under the action of the second negative pressure, the air flows through the dust inlet 2021 and drives the garbage in the dust box 202 toward the dust outlet 2022 so that the garbage is discharged from the dust outlet 2022 .

[0110] When the dry cleaning module of the cleaning device 10 is cleaning the floor, as the roller brush 201 rotates, garbage entangled on the roller brush 201 can move toward the free end 2012 of the roller brush 201 as the roller brush 201 rotates. Because a gap 1031 is reserved between the free end 2012 of the roller brush 201 and the end of the roller brush chamber 205, garbage that moves to the free end 2012 falls into this gap 1031. Under the action of the first negative pressure, garbage that falls into the gap 1031 can be sucked into the inner cavity of the dust box 202 through the dust inlet 2021, reducing or preventing garbage from entangled on the roller brush 201 and ensuring that the roller brush 201 can rotate normally to clean the floor during the cleaning process. Compared with existing solutions for garbage entangled on the roller brush, the user does not need to manually clean the garbage entangled on the roller brush, thereby improving the user experience.

[0111] Therefore, this embodiment can simultaneously clean the garbage wrapped around the roller brush 201 during the process of cleaning the floor, thereby improving the garbage cleaning efficiency.

[0112] Furthermore, when the dust in the dust box 202 of the dry cleaning module needs to be discharged, the first negative pressure is deactivated. Under the action of the second negative pressure, outside air enters the dust box 202 through the dust inlet 2021, and the dust moves from the dust inlet 2021 of the dust box 202 toward the dust outlet 2022, and is discharged from the dust box through the dust outlet 2022. In other words, the dust inlet 2021 of the dust box serves two functions: during the cleaning process, the dust inlet 2021 allows the dust to enter the dust box; during the dust discharge process, the dust inlet 2021 allows outside air to enter the dust box 202, carrying the dust in the dust box 202 out toward the dust outlet 2022. This makes the structure of the dust box 202 simple and compact, and occupies less space within the body of the cleaning device. Otherwise, the dust box 202 would need to be provided with a dust inlet and an air inlet to allow outside air to enter the dust box during the dust discharge process, thereby facilitating the discharge of the dust.

[0113] The gap 1031 is located between the free end 2012 and one end of the roller brush chamber 205 , where the “end” refers to the end of the wall of the roller brush chamber 205 , which is also the end of the gap 1031 closer to the dust inlet 2021 . Figure 4 In the illustrated implementation, the dust inlet 2021 is located at the right end of the roller brush chamber 205 along the width direction of the cleaning device 10 (roughly perpendicular to the travel direction), and the gap 1031 is also located between the right end portions of the roller brush chamber 205 .

[0114] Along the height direction of the cleaning device 10 (roughly perpendicular to the horizontal plane), the gap 1031 is located below the dust inlet 2021. Regardless of the first negative pressure or the second negative pressure, the airflow and garbage first pass through the gap 1031 and then through the dust inlet 2021 to enter the dust box 202.

[0115] In some embodiments, as Figure 4 and Figure 5 As shown, the dry cleaning module also includes a roller brush cover 206 arranged at the bottom of the chassis 101 of the body 100, and the roller brush cover 206 has a roller brush cavity 205; a gap 1031 is reserved between the free end 2012 and one end of the roller brush cover 206; the roller brush cover 206 is provided with a first opening 2061, and the gap 1031 is distributed close to or adjacent to the first opening 2061, and is connected to the dust inlet 2021 through the first opening 2061.

[0116] Under the action of the first negative pressure or the second negative pressure, along the airflow direction, the first opening 2061 is located between the gap 1031 and the dust inlet 2021, and the gap 1031 is located upstream of the first opening 2061. Garbage falling into the gap 1031 passes through the first opening 2061 and enters the dust inlet 2021.

[0117] like Figure 4As shown, along the height direction of the cleaning device 10 , the first opening 2061 is at least partially located directly below the dust inlet 2021 . This distribution method allows garbage to enter the dust box 202 more smoothly through the dust inlet 2021 .

[0118] like Figures 4 to 7 As shown, the dry cleaning module further includes a roller brush lower cover 207 located below the roller brush upper cover 206 , and the roller brush 201 is located between the roller brush upper cover 206 and the roller brush lower cover 207 .

[0119] Figure 4 It is exemplarily shown that two roller brushes 201 are provided in the roller brush chamber 205 , and the two roller brushes 201 are arranged side by side along the traveling direction and rotate in opposite directions.

[0120] In some embodiments, as Figures 9 to 11 As shown, the dry cleaning module also includes a sealing connector 282, which has a fluid channel 2821; one end of the sealing connector 282 is sealedly connected to the first opening 2061, and the other end passes through the chassis 101 of the body 100 and extends into the dust box cavity 204, and is sealed and connected with the dust inlet 2021 of the dust box 204, so that the gap 1031 is connected with the inner cavity of the dust box 204 through the fluid channel 2821.

[0121] Specifically, if Figure 10 As shown, a dust box cavity 204 is provided on the upper surface of the chassis 101 of the fuselage, and a dust suction port 103 is provided on the chassis 101 where the dust box cavity 204 is located. The other end of the sealing connector 282 passes through the dust suction port 103 and extends into the dust box cavity 204, and is fixed on the inner wall of the dust box cavity 204; an annular protrusion 2822 protrudes from the end surface of the other end of the sealing connector 282, and the annular protrusion 2822 is sealed and inserted into the dust inlet 2021 of the dust box 202, so that the roller brush cavity 206 is sealed and connected with the inner cavity of the dust box 204.

[0122] The sealing connector 282 can provide a sealed fluid channel 282 between the gap 1031 and the dust box 202 to ensure that the garbage enters the dust box 202 more completely, reducing or even avoiding the garbage from entering the gap between the two components of the cleaning device 10 during the process of the garbage entering the dust box 202 through the gap 1031 through the dust suction port 103 and the dust inlet 2021.

[0123] exist Figure 11In the implementation shown, the dust box 202 and the roller brush cover 206 are respectively located on both sides of the chassis 101, the dust box 202 is located above the chassis 101, and the roller brush 201 cover is located below the chassis 101. The sealing connector 282 passes through the chassis 101 to connect the gap 1031 and the dust inlet 2021. By providing the sealing connector 282, it is ensured that the garbage flow channel of the roller brush cavity 205, the first opening 2061, the dust suction port 103, and the dust inlet 2021 remains sealed, ensuring that the garbage is sucked into the dust box 202 under the action of the first negative pressure. And under the action of the second negative pressure, it is ensured that the external gas enters the dust box 202 through the roller brush cavity 205 and the circulation channel 2821 to drive the garbage to move from the dust inlet 2021 toward the dust exhaust port 2022. That is, as Figure 11 As shown, one end of the sealing connector 282 is connected to the roller brush lower cover 207, and seals the gap between the roller brush upper cover 206 and the chassis 101 at the first opening 2061, and the other end is connected to the dust suction port 103 of the chassis and the dust inlet of the dust box 202, and seals the gap between the dust box 202 and the chassis 101 at the dust inlet 2021.

[0124] Exemplarily, the sealing connection member 282 is a rubber member.

[0125] The first negative pressure can be provided by the main fan 203 in the cleaning device 10 .

[0126] In some embodiments, as Figure 3 As shown, the dry cleaning module also includes a main fan 203; the dust box 202 is provided with an exhaust port 2023, the main fan 203 is arranged on the exhaust port 2023, and is located outside the dust box 202, the main fan 203 is used to generate a first negative pressure in the dust box 202, and the exhaust port 2023 is located between the dust inlet 2021 and the dust exhaust port 2022.

[0127] When the cleaning device 10 is cleaning the floor, under the action of the first negative pressure, the airflow carrying garbage enters the dust box 202 through the dust suction port 103 and the dust inlet 2021. The garbage can be left in the dust box 202, and the airflow is discharged from the dust box 202 through the exhaust port 2023.

[0128] In some embodiments, the dust exhaust port 2022 can be connected to the air outlet of a dust collecting fan on the base station, and the dust collecting fan generates a second negative pressure.

[0129] After the cleaning device 10 returns to the base station, the base station's dust collection fan operates to provide a second negative pressure. Under this second negative pressure, air from the outside environment enters the dust box 202 through the dust inlet 2021, carrying the trash inside the dust box 202 toward the dust outlet 2022, and then out of the dust box 202 through the dust outlet 2022. During this process, the main fan 203 is inoperative, meaning that one of the first and second negative pressure systems is operating while the other is inoperative.

[0130] In some embodiments, as Figure 12 、 Figure 13a and Figure 13b As shown, the dust inlet 2021 is provided on the front sidewall 210 of the dust box 202, the air outlet 2023 is provided on the rear sidewall 220 of the dust box 202, and the dust outlet 2022 is provided on the sidewall between the front sidewall 210 and the rear sidewall 220. The dust inlet 2021 is located at the right end of the front sidewall 210; an air duct is formed in the dust box 202 from the dust inlet 2021 to the dust outlet 2022. This distribution method facilitates more compact use of the internal space of the cleaning device 10.

[0131] Generally, if Figure 3 As shown, a filter assembly 316 is provided on the exhaust port 2023. When the cleaning device 10 is cleaning, the airflow carrying debris enters the interior space of the dust box 202 (also referred to as the air duct within the dust box 202) through the dust inlet 2021. The debris is then trapped within the interior space of the dust box 202 by the filtering action of the filter assembly 316. After passing through the filter assembly 316, the airflow is discharged to the outside through the air outlet duct of the main fan 203. During this process, debris may remain in the filter assembly 316. Over long-term use, as the amount of residual debris increases, the filtering effectiveness of the filter assembly 316 decreases.

[0132] When the cleaning device 10 returns to the base station, the negative pressure suction provided by the dust collection fan can not only suck the garbage in the dust box 202 into the base station through the dust exhaust duct, but also collect the garbage in the dust box 202 into the base station, that is, the suction end of the dust collection fan is connected to the dust exhaust port; at the same time, during the dust collection process, the airflow from the exhaust end of the dust collection fan can be blown back into the air duct of the main fan, so as to pass through the filter assembly and enter the inner cavity of the dust box. This airflow blows the garbage remaining on the filter assembly 316 back into the air duct of the dust box 202, realizing the self-cleaning function of the filter assembly 316, reducing the replacement frequency of the filter assembly 316, and extending the service life of the filter assembly 316. Exemplarily, the filter assembly 316 is a HEPA. The garbage blown into the dust box 202 is then collected into the base station through the dust exhaust port 2022, realizing the self-cleaning function of the filter assembly 316.

[0133] In some embodiments, at least a portion of the inner surface of the side wall of the dust box 202 where the air duct is located is a smooth transition surface from the dust inlet 2021 to the dust outlet 2022 .

[0134] The smooth transition surface can reduce fluid resistance and better guide the garbage to flow with the air flow toward the dust outlet 2022. Then, when the dust collecting fan of the base station starts to collect dust, the second negative pressure can more fully bring out the garbage in the dust box 202.

[0135] In some embodiments, as Figure 12As shown, the dust box 202 also includes a first curved portion, and the bottom of the front side wall 210 of the dust box 202 and the bottom of the dust box 202 are connected through the first curved portion; the upper surface of the first curved portion is a first curved surface 261, and the inner surface of the front side wall 210 and the upper surface of the bottom of the dust box 202 form a smooth transition connection through the first curved surface 261.

[0136] The bottom of the dust box 202 has a bottom surface 250, which transitions to the inner surface of the front side wall 210 via a first curved surface 261. The first curved surface 261 prevents sharp corners between the bottom of the front side wall 210 and the bottom surface 250, thereby reducing the amount of debris remaining at the junction of the bottom of the front side wall 210 and the bottom of the dust box 202 during dust removal.

[0137] by Figure 12 Taking the implementation shown as an example: the dust inlet 2021 is close to the right end of the front side wall 210. Since the dust inlet 2021 also serves as an air inlet, the airflow enters the dust box 202 from the dust inlet 2021 along a tangential direction, mainly blowing to the rear side of the bottom surface 250 of the dust box 202 and onto the rear side wall 220, and it is difficult to blow to the connection between the front side wall 210 and the bottom surface 250. If this connection is not smooth and has sharp corners, the garbage remaining at the sharp corners will be difficult to be carried by the airflow to the dust outlet 2022, and the dust box 202 will not be able to exhaust dust cleanly. In this embodiment, by providing a first curved surface, the first curved surface makes the connection between the front side wall 210 and the bottom surface 250 smoother and free of sharp corners. Under the action of the second negative pressure, garbage moves more easily along the smooth first curved surface toward the rear side of the bottom surface 250 and can be brought to the dust outlet 2022, reducing or even preventing garbage from remaining at the junction of the front side wall 210 and the bottom surface 250, thereby preventing garbage from accumulating at the dust inlet and improving the dust intake effect of the dust inlet. At the same time, during the cleaning process, garbage flows along the first curved surface toward the rear side wall. Under the action of the airflow, the garbage is easily moved toward the dust outlet and collected in the inner cavity of the dust box, and will not accumulate at the dust inlet, which would affect the dust intake effect of the dust inlet.

[0138] In some embodiments, as Figure 12 As shown, the dust box 202 also includes a first side wall 230 provided on one end of the dust exhaust port 2022, and the first side wall 230 is located between the front side wall 210 and the rear side wall 220; and the dust box 202 also includes a second arc-shaped portion, and the inner surface of the second arc-shaped portion is a second arc-shaped surface; the first side wall 230 and the front side wall 210 are connected by the second arc-shaped portion; the second arc-shaped surface 262 is used to smoothly transition at least a portion of the inner surface of the front side wall 210 and the inner surface of the first side wall 230, so that at least a portion of the front side wall 210 where the air duct is located and the first side wall 230 form a smooth transition surface from the dust inlet 2021 to the dust exhaust port 2022.

[0139] Under the action of the second negative pressure, garbage can more easily move from the front side wall 210 toward the first side wall 230 along the smooth second curved surface. This direction is also toward the dust outlet 2022, so that garbage can more easily be carried to the dust outlet 2022 by the airflow, reducing or even avoiding garbage residue at the connection between the front side wall 210 and the first side wall 230.

[0140] In some embodiments, as Figure 12 As shown, the dust box 202 further includes a second sidewall 240 disposed at one end of the dust inlet 2021, the second sidewall 240 being located between the front sidewall 210 and the rear sidewall 220. The dust box 202 further includes a third curved portion and a fourth curved portion. The inner surface of the third curved portion is a third curved surface 263, connecting the second sidewall 240 and one end of the rear sidewall 220 via the third curved portion. The inner surface of the fourth curved portion is a fourth curved surface 264, connecting the other end of the rear sidewall 220 to the dust outlet 2022 via the fourth curved portion. The third curved surface 263 is used to smoothly transition the inner surface of one end of the rear sidewall 220 to the inner surface of the second sidewall 240. The inner surface of the other end of the rear sidewall 220 is smoothly transitioned to the dust outlet 2022 via the fourth curved surface 264, thereby providing a smooth transition between the second sidewall 240 and the rear sidewall 220, where the air duct is located, from the dust inlet 2021 to the dust outlet 2022.

[0141] The third curved surface 263 eliminates sharp corners at the junction of the second sidewall 240 and one end of the rear sidewall 220. The fourth curved surface 264 eliminates sharp corners at the junction of the other end of the rear sidewall 220 and the dust outlet 2022. This allows garbage to more easily move from the second sidewall 240 toward the rear sidewall 220 along the smooth third curved surface 263. Garbage on the rear sidewall 220 can then continue to move toward the dust outlet 2022 along the smooth fourth curved surface 264. Consequently, under the action of the second negative pressure, garbage is more easily discharged from the dust outlet 2022.

[0142] For example, Figure 12 As shown, the air duct is generally in an anti-S shape from the dust inlet 2021 toward the dust outlet 2022, that is, there is a corner at the dust inlet and a corner at the dust outlet, so as to avoid setting multiple corners in the dust box and prevent garbage from remaining in the dust box and being difficult to be discharged from the dust outlet.

[0143] In some embodiments, as Figure 12 and Figure 14As shown, the front side wall 210 includes a first front wall 211 and a second front wall 212, the bottom of the second front wall 212 is fixed on the top of the first front wall 211, the bottom of the first front wall 211 is connected to the bottom of the dust box 202, and the top of the second front wall is connected to the top of the dust box 202; the dust inlet 2021 is arranged on the first front wall 211; the inner surface of the second front wall 212 is transitionally connected to the inner surface of the first side wall 230 through a second curved surface, and at least part of the bottom of the second curved portion is connected to the first front wall 211.

[0144] from Figure 12 and Figure 14 As can be seen in the figure, the first front wall 211 is located below the second front wall 212. The dust inlet 2021 is provided on the first front wall 211 below. If trash entering the air duct inside the dust box 202 from the dust inlet 2021 is blown up by the airflow, the second front wall 212 can guide the blown-up trash to the first front wall 211 below and / or the bottom surface 250 of the dust box 202. Because the first front wall 211 is a smooth surface extending from the dust inlet 2021 to the bottom of the second curved portion, and the bottom surface 250 of the dust box 202 is a smooth surface extending from the third curved surface 263 to the dust outlet 2022, trash that lands on the first front wall 211 and / or the bottom surface 250 is more easily discharged through the dust outlet 2022.

[0145] Continue to refer Figure 12 and Figure 14 In some embodiments, the bottom of the inner surface of the first front wall 211 is smoothly connected to the upper surface of the bottom of the dust box 202 through the first curved surface 261.

[0146] In some embodiments, as Figure 14 As shown, a first angle α1 is formed between the first front wall 211 and the surface to be cleaned, and a second angle α2 is formed between the second front wall 212 and the surface to be cleaned. The first angle is smaller than the second angle, that is, α1 < α2.

[0147] In this embodiment, for ease of description, the surface to be cleaned is described by taking the ground as an example.

[0148] The second front wall 212 has a larger inclination angle, so that garbage on the second front wall 212 can more easily fall onto the first front wall 211 below.

[0149] In some embodiments, combined Figure 11 and Figure 12 As shown, the inner surface of the first front wall 211 is a first inclined surface inclined from the top toward the bottom.

[0150] In some embodiments, the inner surface of the second front wall 212 is a second inclined surface that slopes from the top toward the bottom.

[0151] like Figure 14 As shown, a first angle α1 is formed between the first inclined surface and the surface to be cleaned, and a second angle α2 is formed between the second inclined surface and the surface to be cleaned.

[0152] In some embodiments, as Figure 12 As shown, the second front wall 212 includes at least a first section 2121 and a second section 2122, and the first section 2121 and the second section 2122 are smoothly transitioned and connected; the dust inlet 2021 is close to the first section 2121 and is distributed below the first section 2121; the first section 2121 and the rear side wall 220 are separated by a first distance L1, and the second section 2122 and the rear side wall 220 are separated by a second distance L2, and the first distance L1 is greater than the second distance L2, so that the first longitudinal cross-sectional area formed between the first section 2121 and the rear side wall 220 is greater than the second longitudinal cross-sectional area between the second section 2122 and the rear side wall 220.

[0153] The longitudinal cross-sectional area is the cross-sectional area perpendicular to the flow direction of the fluid in the dust box 202 .

[0154] Since the first section 2121 is closer to the dust inlet 2021 than the second section 2122 and the first longitudinal cross-sectional area is larger than the second longitudinal cross-sectional area, more garbage can pass through the dust inlet 2021, reducing the accumulation of garbage in the dust inlet 2021.

[0155] Under the premise that the flow rate in the dust box 202 is the same, the flow velocity of the fluid is opposite to the longitudinal cross-sectional area. Figures 12 to 13b In the implementation shown, compared with the first section 2121, the second section 2122 is closer to the dust exhaust port 2022, and the second longitudinal cross-sectional area is smaller than the first longitudinal cross-sectional area. Therefore, the first negative pressure does not work. Under the action of the second negative pressure, the fluid flow rate at the position of the second section 211 is greater and the negative pressure is greater. The garbage in the dust box 202 can be more easily gathered at the dust exhaust port 2022 and discharged through the dust exhaust port 2022.

[0156] In some embodiments, as Figure 12 As shown, the second front wall 212 also includes a third section 2123. The inner surface of one end of the third section 2123 smoothly transitions to the inner surface of the first section 2121 via a fifth curved surface 265, and the inner surface of the other end of the third section 2123 smoothly transitions to the inner surface of the second section 2122 via a sixth curved surface 266. The left and right ends of the third section 2123 connect to the second section 2122 and the first section 2121, respectively. The fifth curved surface 265 allows for a smooth transition between the right end of the third section 2123 and the first section 2121, while the sixth curved surface 266 allows for a smooth transition between the left end of the third section 2122 and the second section 2122. As a result, the entire second front wall 212 is free of sharp corners, allowing garbage to move more smoothly along the second front wall 212 toward the dust outlet 2022.

[0157] In some embodiments, as Figure 12 As shown, the inner surface of the third section 2123 is a third inclined surface that slopes from the first section 2121 toward the second section 2122. The third inclined surface gradually decreases the longitudinal cross-sectional area from the first section 2121 toward the second section 2122, and the third inclined surface guides and drains the fluid.

[0158] In some embodiments, as Figure 15 and Figure 16 As shown, the right side end of the front side wall 210 and the bottom of the dust box 202 has a raised portion 270 protruding toward the inner cavity of the dust box 202; the raised portion 270 is located below the dust inlet 2021, and the upper surface of the raised portion 270 is a smooth curved surface; the front end of the raised portion 270 is connected to the dust inlet 2021, and the rear end extends along the direction of the third curved surface 263. Under the action of the first negative pressure or the second negative pressure, the smooth curved surface of the raised portion 270 is used to guide the garbage entering from the dust inlet 2021 to flow from the smooth curved surface toward the rear side wall 220.

[0159] Since the air flow enters the dust box 202 along the tangential direction from the dust inlet 2021, it is difficult for the air flow to blow to the area directly below the dust inlet 2021. Therefore, the area below the dust inlet 2021 is raised to form a raised portion 270, so that the air flow can blow to the smooth curved surface of the raised portion 270 and carry the garbage into the dust box 202 along the smooth curved surface, further reducing or even avoiding the accumulation of garbage at the dust inlet 2021.

[0160] In some embodiments, as Figure 15 As shown, the front end of the raised portion 270 is connected to the dust inlet 2021 , and the rear end extends along the third curved surface 263 to the bottom of the rear side wall 220 and is located on the right side of the exhaust port 2023 of the rear side wall 220 .

[0161] like Figure 15 As shown, the raised portion 270 is located below the second sidewall 240 and the third curved surface 263 .

[0162] The raised portion 270 further extends to the rear sidewall 220, ensuring that trash flows along the smooth curved surface into the air duct of the dust box 202 without being drawn to and collected at the exhaust port 2023. This reduces or even prevents trash from being blocked at the exhaust port 2023 by the smooth curved surface of the raised portion 270, thereby clogging the filter assembly 316 at the exhaust port 2023.

[0163] In some embodiments, the front end of the raised portion 270 is connected to a portion of the bottom of the dust inlet 2021 .

[0164] from Figure 15It can be seen in the figure that the front end of the raised portion 270 extends rightward from the approximate middle of the dust inlet 2021 , and the bottom portion of the dust inlet 2021 from the middle to the left end is not provided with the raised portion 270 .

[0165] If the entire bottom of the dust inlet 2021 were formed into a raised portion 270, the upper surface area of the raised portion 270 would be larger, forming a large curved surface. The large curved surface can easily guide garbage to the exhaust port 2023. In this embodiment, the front end of the raised portion 270 is connected to the bottom portion of the dust inlet 2021, making the upper surface area of the raised portion 270 smaller, forming a small curved surface. The small curved surface can guide garbage to the internal air duct of the dust box 202, but not directly to the exhaust port 2023, thereby reducing or even preventing garbage accumulation at the exhaust port 2023.

[0166] In some embodiments, the rear end of the smooth curved surface of the raised portion 270 is smoothly transitioned to the inner surface of the rear sidewall 220 .

[0167] In some embodiments, the smooth curved surface of the raised portion 270 is smoothly transitioned to the bottom of the third arc-shaped surface 263 .

[0168] In some embodiments, the smooth curved surface of the raised portion 270 is smoothly transitioned to the upper surface of the front side wall 210 and the bottom of the dust box 202 .

[0169] like Figure 16 As shown, all surfaces in the dust box 202 connected to the raised portion 270 are smoothly connected to the raised portion 270 to avoid sharp corners in the air duct inside the dust box 202 and reduce the amount of garbage remaining in the dust box 202 during the dust removal process.

[0170] In some embodiments, as Figure 17 and Figure 18 As shown, the inner surface 280 of the top of the dust box 202 is provided with a drainage boss 281 that protrudes downward into the interior of the dust box 202. The rear end of the drainage boss 281 is connected to the top of the dust outlet 2022, and the front end extends forward along the second curved surface 262. The lower surface of the drainage boss 281 is a smooth curved surface that is lower than the adjacent inner surface 280 of the top of the dust box 202.

[0171] The drainage boss 281 can reduce the cross-sectional area of the dust outlet 2022 . When the airflow flows through the dust outlet 2022 , the negative pressure at the dust outlet 2022 can be increased, so that the garbage in the dust box 202 can be more gathered in the dust outlet 2022 and discharged through the dust outlet 2022 .

[0172] In some embodiments, as Figure 18 As shown, the front end of the drainage boss 281 extends to the left end of the front side wall 210 , and the right end of the drainage boss 281 is smoothly connected to the inner surface 280 of the top of the dust box 202 .

[0173] Figure 17 The middle arrow indicates the approximate flow path of the airflow from the dust inlet 2021 along the top inner surface of the dust box 202 toward the dust outlet 2022.

[0174] The right side end of the drainage boss 281 is smoothly connected to the inner surface 280 of the top of the dust box 202. Figure 17 The roughly O area in the middle has a smooth transition, so that the garbage can flow through the drainage boss 281 more smoothly and be discharged through the dust outlet 2022 under the drainage action of the drainage boss 281.

[0175] Under the premise of no conflict, different technical features of Example 1 can be arbitrarily combined to form a new embodiment.

[0176] Example 2

[0177] The difference from Example 1 is that: Figures 12 to 13b As shown, this embodiment provides a dust box 202 instead of a dry cleaning module. The dust box 202 includes a box body 260, and a dust inlet 2021 is provided on the front side wall 210 of the box body 260. A dust outlet 2022 is provided on the side wall of the box body 260 located between the front side wall 210 and the rear side wall 220; an air duct is formed in the box body 260 from the dust inlet 2021 to the dust outlet 2022; the inner surface of the side wall of the box body 260 where the air duct is located has at least a part that forms a smooth transition surface from the dust inlet 2021 to the dust outlet 2022; under the action of a first negative pressure, garbage is sucked into the air duct through the dust inlet 2021; under the action of a second negative pressure, the air flow passes through the dust inlet 2021 and drives the garbage in the box body 260 toward the dust outlet 2022, so that the garbage is discharged from the dust outlet 2022.

[0178] The dust box 202 of this embodiment has the same beneficial effects as the dust box 202 in embodiment 1.

[0179] The smooth transition surface can avoid the inner surface of the air duct of the box body 260 from having sharp corners, reduce fluid resistance, and better guide the garbage to flow toward the dust outlet 2022 with the air flow. Then, the second negative pressure can more fully bring out the garbage in the air duct of the dust box 202, reducing the garbage remaining in the air duct.

[0180] When the dust box 202 is applied to the cleaning device 10, the first negative pressure is provided by the main fan 203 of the cleaning device 10. The second negative pressure is provided by the dust collecting fan of the base station.

[0181] In some embodiments, as Figure 12As shown, the box body 260 also includes a first arc-shaped portion, and the bottom of the front side wall 210 and the bottom of the box body 260 are connected through the first arc-shaped portion; the upper surface of the first arc-shaped portion is a first arc-shaped surface 261, and the inner surface of the front side wall 210 and the upper surface of the bottom of the box body 260 form a smooth transition connection through the first arc-shaped surface 261.

[0182] The bottom of the box body 260 has a bottom surface 250, which transitions to the inner surface of the front side wall 210 via a first curved surface 261. The first curved surface 261 prevents sharp corners between the bottom of the front side wall 210 and the bottom surface 250, thereby reducing the amount of debris remaining at the junction of the bottom of the front side wall 210 and the bottom of the box body 260 during dust removal.

[0183] by Figure 12 Take the implementation shown as an example: the dust inlet 2021 is close to the right end of the front side wall 210. Since the dust inlet 2021 also serves as an air inlet, the airflow enters the dust box 202 air duct along the tangential direction from the dust inlet 2021, mainly blowing to the rear side of the bottom surface 250 of the box body 260 and the rear side wall 220, and it is difficult to blow to the connection between the front side wall 210 and the bottom surface 250. If the connection is not smooth enough and has sharp corners, the garbage remaining at the sharp corners will be difficult to be carried by the airflow to the dust outlet 2022, and the dust discharge of the box body 260 will not be clean. In this embodiment, by providing a first curved surface, the first curved surface makes the connection between the front side wall 210 and the bottom surface 250 smoother and free of sharp corners. Under the action of the second negative pressure, garbage moves more easily along the smooth first curved surface toward the rear side of the bottom surface 250 and can be brought to the dust outlet 2022, reducing or even preventing garbage from remaining at the junction of the front side wall 210 and the bottom surface 250, thereby preventing garbage from accumulating at the dust inlet and improving the dust intake effect of the dust inlet. At the same time, during the cleaning process, garbage flows along the first curved surface toward the rear side wall. Under the action of the airflow, the garbage is easily moved toward the dust outlet and collected in the inner cavity of the dust box, and will not accumulate at the dust inlet, which would affect the dust intake effect of the dust inlet.

[0184] In some embodiments, as Figure 12 As shown, the box body 260 also includes a first side wall 230 provided on one end of the dust exhaust port 2022, and the first side wall 230 is located between the front side wall 210 and the rear side wall 220; and the box body 260 also includes a second arc-shaped portion, and the inner surface of the second arc-shaped portion is a second arc-shaped surface; the first side wall 230 and the front side wall 210 are connected by the second arc-shaped portion; the second arc-shaped surface 262 is used to smoothly transition at least a portion of the inner surface of the front side wall 210 and the inner surface of the first side wall 230, so that at least a portion of the front side wall 210 where the air duct is located and the first side wall 230 form a smooth transition surface from the dust inlet 2021 to the dust exhaust port 2022.

[0185] Under the action of the second negative pressure, garbage can more easily move from the front side wall 210 toward the first side wall 230 along the smooth second curved surface. This direction is also toward the dust outlet 2022, so that garbage can more easily be carried to the dust outlet 2022 by the airflow, reducing or even avoiding garbage residue at the connection between the front side wall 210 and the first side wall 230.

[0186] In some embodiments, as Figure 12 As shown, the box body 260 also includes a second side wall 240 provided on one end of the dust inlet 2021, and the second side wall 240 is located between the front side wall 210 and the rear side wall 220; the box body 260 also includes a third curved portion and a fourth curved portion, the inner surface of the third curved portion is a third curved surface 263, and the second side wall 240 and one end of the rear side wall 220 are connected by the third curved portion; the inner surface of the fourth curved portion is a fourth curved surface 264, and the other end of the rear side wall 220 is connected to the dust outlet 2022 through the fourth curved portion; the third curved surface 263 is used to smoothly transition the inner surface of one end of the rear side wall 220 with the inner surface of the second side wall 240, and the inner surface of the other end of the rear side wall 220 is smoothly transitioned to the dust outlet 2022 through the fourth curved surface 264, so that the second side wall 240 and the rear side wall 220 where the air duct is located are smoothly transitioned from the dust inlet 2021 to the dust outlet 2022.

[0187] The third curved surface 263 eliminates sharp corners at the junction of the second sidewall 240 and one end of the rear sidewall 220. The fourth curved surface 264 eliminates sharp corners at the junction of the other end of the rear sidewall 220 and the dust outlet 2022. This allows garbage to more easily move from the second sidewall 240 toward the rear sidewall 220 along the smooth third curved surface 263. Garbage on the rear sidewall 220 can then continue to move toward the dust outlet 2022 along the smooth fourth curved surface 264. Consequently, under the action of the second negative pressure, garbage is more easily discharged from the dust outlet 2022.

[0188] For example, the air duct is generally in an anti-S shape from the dust inlet 2021 toward the dust outlet 2022, that is, there is a corner at the dust inlet 2021 and a corner at the dust outlet 2022, so as to avoid multiple corners in the dust box 202, and prevent garbage from remaining in the dust box 202 and being difficult to be discharged from the dust outlet 2022.

[0189] In some embodiments, as Figure 12 and Figure 14As shown, the front side wall 210 includes a first front wall 211 and a second front wall 212, the bottom of the second front wall 212 is fixed on the top of the first front wall 211, the bottom of the first front wall 211 is connected to the bottom of the box body 260, and the top of the first front wall 211 is connected to the top of the box body 260; the dust inlet 2021 is arranged on the first front wall 211; the inner surface of the second front wall 212 is transitionally connected to the inner surface of the first side wall 230 through a second curved surface, and at least part of the bottom of the second curved portion is connected to the first front wall 211.

[0190] from Figure 12 and Figure 14 As can be seen in the figure, the first front wall 211 is located below the second front wall 212. The dust inlet 2021 is located on the first front wall 211 below. If trash entering the air duct from the dust inlet 2021 is blown up by the airflow, the second front wall 212 can guide the blown-up trash to the first front wall 211 below and / or the bottom surface 250 of the box body 260. Because the first front wall 211 is a smooth surface extending from the dust inlet 2021 to the bottom of the second curved portion, and the bottom surface 250 of the box body 260 is a smooth surface extending from the third curved surface 263 to the dust outlet 2022, trash that lands on the first front wall 211 and / or the bottom surface 250 is more easily discharged through the dust outlet 2022.

[0191] Continue to refer Figure 12 and Figure 14 In some embodiments, the bottom of the inner surface of the first front wall 211 is smoothly connected to the upper surface of the bottom of the box body 260 through the first curved surface 261 .

[0192] In some embodiments, as Figure 14 As shown, a first angle α1 is formed between the first front wall 211 and the surface to be cleaned, and a second angle α2 is formed between the second front wall 212 and the surface to be cleaned. The first angle is smaller than the second angle, that is, α1 < α2.

[0193] In this embodiment, for ease of description, the surface to be cleaned is described by taking the ground as an example.

[0194] The second front wall 212 has a larger inclination angle, so that garbage on the second front wall 212 can more easily fall onto the first front wall 211 below.

[0195] In some embodiments, combined Figure 8 and Figure 9 As shown, the inner surface of the first front wall 211 is a first inclined surface inclined from the top toward the bottom.

[0196] In some embodiments, the inner surface of the second front wall 212 is a second inclined surface that slopes from the top toward the bottom.

[0197] like Figure 14 As shown, a first angle α1 is formed between the first inclined surface and the surface to be cleaned, and a second angle α2 is formed between the second inclined surface and the surface to be cleaned.

[0198] In some embodiments, as Figure 12 As shown, the second front wall 212 includes at least a first section 2121 and a second section 2122, and the first section 2121 and the second section 2122 are smoothly transitioned and connected; the dust inlet 2021 is close to the first section 2121 and is distributed below the first section 2121; the first section 2121 and the second section 2122 are respectively spaced apart from the rear side wall 220 by a first spacing and a second spacing, and the first spacing is greater than the second spacing, so that the first longitudinal cross-sectional area formed between the first section 2121 and the rear side wall 220 is greater than the second longitudinal cross-sectional area formed between the second section 2122 and the rear side wall 220.

[0199] The longitudinal cross-sectional area is the cross-sectional area perpendicular to the flow direction of the fluid in the dust box 202 .

[0200] Since the first section 2121 is closer to the dust inlet 2021 than the second section 2122 and the first longitudinal cross-sectional area is larger than the second longitudinal cross-sectional area, more garbage can pass through the dust inlet 2021, reducing the accumulation of garbage in the dust inlet 2021.

[0201] Under the premise that the flow rate in the dust box 202 is the same, the flow velocity of the fluid is opposite to the longitudinal cross-sectional area. Figure 12 In the implementation shown, compared with the first section 2121, the second section 2122 is closer to the dust exhaust port 2022, and the second longitudinal cross-sectional area is smaller than the first longitudinal cross-sectional area. Therefore, the first negative pressure does not work. Under the action of the second negative pressure, the fluid flow rate at the position of the second section 211 is greater and the negative pressure is greater. The garbage in the dust box 202 can be more easily gathered at the dust exhaust port 2022 and discharged through the dust exhaust port 2022.

[0202] In some embodiments, as Figure 12 As shown, the second front wall 212 also includes a third section 2123. The inner surface of one end of the third section 2123 smoothly transitions to the inner surface of the first section 2121 via a fifth curved surface 265, and the inner surface of the other end of the third section 2123 smoothly transitions to the inner surface of the second section 2122 via a sixth curved surface 266. The left and right ends of the third section 2123 connect to the second section 2122 and the first section 2121, respectively. The fifth curved surface 265 allows for a smooth transition between the right end of the third section 2123 and the first section 2121, while the sixth curved surface 266 allows for a smooth transition between the left end of the third section 2122 and the second section 2122. As a result, the entire second front wall 212 is free of sharp corners, allowing garbage to move more smoothly along the second front wall 212 toward the dust outlet 2022.

[0203] In some embodiments, as Figure 12 As shown, the inner surface of the third section 2123 is a third inclined surface that slopes from the first section 2121 toward the second section 2122. The third inclined surface gradually decreases the longitudinal cross-sectional area from the first section 2121 toward the second section 2122, and the third inclined surface guides and drains the fluid.

[0204] In some embodiments, as Figure 13a 、 Figure 15 and Figure 16 As shown, the right side end of the front side wall 210 and the bottom of the box body 260 has a raised portion 270 protruding toward the inner cavity of the box body 260; the dust inlet 2021 is arranged on the right end of the front side wall 210; the raised portion 270 is located below the dust inlet 2021, and the upper surface of the raised portion 270 is a smooth curved surface; the front end of the raised portion 270 is connected to the dust inlet 2021, and its rear end extends along the direction of the third curved surface 263 and is connected to the third curved portion. Under the action of the first negative pressure or the second negative pressure, the smooth curved surface of the raised portion 270 is used to guide the garbage entering from the dust inlet 2021 to flow from the smooth curved surface toward the rear side wall 220.

[0205] Since the air flow enters the box body 260 along the tangential direction from the dust inlet 2021, it is difficult for the air flow to blow to the area directly below the dust inlet 2021, so the area below the dust inlet 2021 is raised to form a raised portion 270, so that the air flow can blow onto the smooth curved surface of the raised portion 270, and carry the garbage into the box body 260 along the smooth curved surface, further reducing or even avoiding the accumulation of garbage at the dust inlet 2021.

[0206] In some embodiments, as Figure 12 As shown, the second front wall 212 includes at least a first section 2121 and a second section 2122, and the first section 2121 and the second section 2122 are smoothly transitioned and connected; the dust inlet 2021 is close to the first section 2121 and is distributed below the first section 2121; the first section 2121 and the second section 2122 are respectively spaced apart from the rear side wall 220 by a first spacing and a second spacing, and the first spacing is greater than the second spacing, so that the first longitudinal cross-sectional area formed between the first section 2121 and the rear side wall 220 is greater than the second longitudinal cross-sectional area formed between the second section 2122 and the rear side wall 220; the bottom of the first front wall 211 is connected to the bottom of the box body 260 through a first curved surface 261; the first front wall 211, the first curved surface 261 and the right side of the bottom of the box body 260 form a raised portion 270.

[0207] In some embodiments, as Figure 12 As shown, an exhaust port 2023 is provided on the rear side wall 220 of the box body 260, and the exhaust port 2023 is located between the dust exhaust port 2022 and the dust inlet 2021; the exhaust port 2023 is used to communicate with the main fan 203, and the main fan 203 is used to generate a first pressure.

[0208] In some embodiments, as Figure 12 As shown, the dust inlet 2021 is provided at the right end of the front side wall 210 .

[0209] The dust discharge port 2022 can be connected to the dust collecting fan on the base station so that the garbage in the air duct can be discharged from the box body 260 under the action of the second negative pressure generated by the dust collecting fan.

[0210] During the process of cleaning the floor with the cleaning device 10, the main fan 203 generates a first negative pressure after operation. Under the action of the first negative pressure, the airflow carrying garbage enters the air duct inside the box body 260 through the dust inlet 2021. The garbage can be retained in the air duct, and the airflow is discharged from the box body 260 through the exhaust port 2023.

[0211] like Figure 15 As shown, the front end of the raised portion 270 is connected to the dust inlet 2021 , and the rear end extends along the third curved surface 263 to the bottom of the rear side wall 220 and is located on the right side of the air outlet 2023 .

[0212] like Figure 15 As shown, the raised portion 270 is located below the second sidewall 240 and the third curved surface 263 .

[0213] The raised portion 270 further extends to the rear sidewall 220, ensuring that garbage flows along the smooth curved surface into the air duct of the box body 260 without being drawn to and collected at the exhaust port 2023. This reduces or even prevents garbage from being blocked at the exhaust port 2023 by the smooth curved surface of the raised portion 270, thereby clogging the filter assembly 316 at the exhaust port 2023.

[0214] In some embodiments, the front end of the raised portion 270 is connected to a portion of the bottom of the dust inlet 2021 .

[0215] from Figure 15 It can be seen in the figure that the front end of the raised portion 270 extends rightward from the approximate middle of the dust inlet 2021 , and the bottom portion of the dust inlet 2021 from the middle to the left end is not provided with the raised portion 270 .

[0216] If the entire bottom of the dust inlet 2021 were formed into a raised portion 270, the upper surface area of the raised portion 270 would be larger, forming a large curved surface. The large curved surface can easily guide garbage to the exhaust port 2023. In this embodiment, the front end of the raised portion 270 is connected to the bottom portion of the dust inlet 2021, making the upper surface area of the raised portion 270 smaller, forming a small curved surface. The small curved surface can guide garbage to the internal air duct of the box body 260, but not directly to the exhaust port 2023, thereby reducing or even preventing garbage accumulation at the exhaust port 2023.

[0217] In some embodiments, the rear end of the smooth curved surface of the raised portion 270 is smoothly transitioned to the inner surface of the rear sidewall 220 .

[0218] In some embodiments, the smooth curved surface of the raised portion 270 is smoothly transitioned to the bottom of the third arc-shaped surface 263 .

[0219] In some embodiments, the smooth curved surface of the raised portion 270 is smoothly transitioned to the upper surface of the front side wall 210 and the bottom of the box body 260 .

[0220] like Figure 16 As shown, all surfaces in the box body 260 connected to the raised portion 270 are smoothly connected to the raised portion 270 to avoid sharp corners in the air duct inside the box body 260 and reduce the amount of garbage remaining in the box body 260 during dust removal.

[0221] In some embodiments, as Figure 17 and Figure 18 As shown, the inner surface 280 of the top of the box body 260 is provided with a drainage boss 281 that protrudes downward into the inner cavity of the box body 260. The rear end of the drainage boss 281 is connected to the top of the dust exhaust port 2022, and the front end extends forward along the second curved surface 262. The lower surface of the drainage boss 281 is a smooth curved surface that is lower than the adjacent inner surface 280 of the top of the box body 260.

[0222] The drainage boss 281 can reduce the cross-sectional area of the dust outlet 2022 . When the airflow flows through the dust outlet 2022 , the negative pressure at the dust outlet 2022 can be increased, so that the garbage in the box body 260 can be more gathered in the dust outlet 2022 and discharged through the dust outlet 2022 .

[0223] In some embodiments, as Figure 18 As shown, the front side end of the drainage boss 281 extends to the left side end of the front side wall 210 , and the right side end of the drainage boss 281 is smoothly connected to the inner surface 280 of the top of the box body 260 .

[0224] Figure 17 The middle arrow indicates the approximate flow path of the airflow from the dust inlet 2021 along the top inner surface of the box body 260 toward the dust outlet 2022.

[0225] The right side end of the drainage boss 281 is smoothly connected to the inner surface 280 of the top of the box body 260, that is, Figure 17 The roughly O area in the middle has a smooth transition, so that the garbage can flow through the drainage boss 281 more smoothly and be discharged through the dust outlet 2022 under the drainage action of the drainage boss 281.

[0226] Under the premise of no conflict, different technical features of Example 2 can be arbitrarily combined to form a new example.

[0227] Example 3

[0228] Based on the above content, this embodiment provides a cleaning device 10, which includes a body 100 and the dry cleaning module of Example 1; the dust exhaust port 2022 can be connected to the dust collecting fan on the base station, and the dust collecting fan is used to generate a second negative pressure.

[0229] In some embodiments, the exhaust port 2023 on the rear side wall 220 of the dust box 202 of the dry cleaning module is located between the dust inlet 2021 and the dust exhaust port 2022. The main fan 203 is provided on the exhaust port 2023, and the main fan 203 is used to provide a first negative pressure; a filter component is provided on the air path between the inner cavity of the dust box 202 and the exhaust port 2023; the air outlet end of the dust collecting fan is connected to the air duct of the main fan 203. When the main fan 203 stops working, the dust collecting fan generates a second negative pressure, and the wind at the air outlet end of the dust collecting fan is blown onto the filter component through the air duct of the main fan 203 to blow the dust on the filter component into the dust box 202.

[0230] When the cleaning device 10 is cleaning, the airflow carrying debris enters the air duct through the dust inlet 2021. The debris is then trapped in the interior of the dust box 202 by the filtering action of the filter assembly 316. The airflow then passes through the filter assembly 316 and flows out of the dust box 202. During this process, debris may remain in the filter assembly 316. Over long-term use, as the amount of debris remaining increases, the filtering effect of the filter assembly 316 decreases.

[0231] In this embodiment, when the cleaning device 10 returns to the base station, the negative pressure suction force (i.e., the second negative pressure) provided by the dust collecting fan can not only suck the garbage in the air duct into the base station and clean the garbage in the dust box 202, but also blow the airflow discharged by the dust collecting fan into the air duct, and blow the garbage remaining on the filter component 316 into the air duct, thereby realizing self-cleaning of the filter component 316, reducing the replacement frequency of the filter component 316, and extending the service life of the filter component 316.

[0232] Since the garbage remaining in the filter component 316 is basically facing the inner side of the dust box 202, and the airflow blown out by the base station is from the outside to the inside of the filter component 316, the airflow will blow the garbage remaining in the filter component 316 into the inside of the dust box 202, and the blown garbage can be discharged again through the dust outlet 2022.

[0233] Furthermore, the airflow from the base station into the dust box 202 can also lift stubborn debris remaining in the dust box 202, at least reducing the adhesion of stubborn debris to the inner wall of the dust box 202, thereby making it easier for the base station to collect the debris in the dust box 202. The airflow from the base station into the dust box 202 can also accelerate the movement of the debris in the dust box 202 toward the dust discharge channel 107, thereby quickly discharging the debris in the dust box 202 and improving the efficiency and cleaning effect of the dust box 202.

[0234] In this embodiment, other structures and working principles of the cleaning device 10 have been described in detail in the above embodiments and will not be repeated here.

[0235] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0236] Throughout this specification, references to "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" mean that a specific feature, structure, material, or characteristic described in conjunction with an embodiment or example is included in at least one embodiment or example of the present application. In this specification, illustrative references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0237] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dry cleaning module, characterized in that: include A dust box having at least a dust inlet and a dust outlet; A roller brush having a fixed end and a free end, wherein the fixed end of the roller brush is rotatably disposed in a roller brush cavity at the bottom of the cleaning device body, and the free end is suspended in the roller brush cavity; the dust inlet is distributed relative to the fixed end and close to the free end; Along the axial direction of the roller brush, a gap is reserved between the free end and one end of the roller brush cavity, and the gap is communicated with the dust inlet; The garbage wrapped around the roller brush moves from the fixed end toward the free end as the roller brush rotates and falls into the gap. Under the action of the first negative pressure, the garbage in the gap is sucked into the dust box through the dust inlet. Under the action of the second negative pressure, air flows through the dust inlet, driving the garbage in the dust box toward the dust outlet, so that the garbage is discharged from the dust outlet.

2. The dry cleaning module according to claim 1, characterized in that: The dry cleaning module also includes a roller brush cover arranged on the bottom of the chassis of the fuselage, and the roller brush cover has the roller brush cavity; the gap is reserved between the free end and one end of the roller brush cover; the roller brush cover is provided with a first opening, and the gap is distributed close to or adjacent to the first opening, and is connected to the dust inlet through the first opening.

3. The dry cleaning module according to claim 2, characterized in that: The dust box is arranged in the dust box cavity in the body; The dry cleaning module also includes a sealing connector having a fluid channel; one end of the sealing connector is sealedly connected to the first opening, and the other end passes through the chassis and extends into the dust box cavity, and is sealed and connected to the dust inlet of the dust box, so that the gap is connected to the inner cavity of the dust box through the fluid channel.

4. The dry cleaning module according to any one of claims 1 to 3, characterized in that: The dry cleaning module also includes a main fan; the dust box is provided with an exhaust port, the main fan is arranged on the exhaust port and is located outside the dust box, the main fan is used to generate the first negative pressure in the dust box, and the exhaust port is located between the dust inlet and the dust exhaust port.

5. The dry cleaning module according to claim 4, characterized in that: The dust exhaust port can be connected to the air outlet end of the dust collecting fan on the base station, and the dust collecting fan generates the second negative pressure.

6. The dry cleaning module according to claim 5, characterized in that: The dust inlet is provided on the front side wall of the dust box, the air outlet is provided on the rear side wall of the dust box, the dust outlet is provided on the side wall between the front side wall and the rear side wall, and the dust inlet is distributed at the right end of the front side wall; An air duct is formed in the dust box from the dust inlet to the dust outlet.

7. The dry cleaning module according to claim 6, characterized in that: At least a portion of the inner surface of the side wall of the dust box where the air duct is located is a surface that smoothly transitions from the dust inlet to the dust outlet.

8. The dry cleaning module according to claim 7, characterized in that: The dust box further includes a first arc-shaped portion, and the bottom of the front side wall and the bottom of the dust box are connected through the first arc-shaped portion; The upper surface of the first arc-shaped portion is a first arc-shaped surface, and the inner surface of the front side wall and the upper surface of the bottom of the dust box form a smooth transition connection through the first arc-shaped surface.

9. The dry cleaning module according to claim 7, characterized in that: The dust box further includes a first side wall provided on one end of the dust outlet, the first side wall being located between the front side wall and the rear side wall; and the dust box further includes a second curved portion, the inner surface of the second curved portion being a second curved surface; the first side wall and the front side wall are connected by the second curved portion; The second curved surface is used to smoothly transition between at least a portion of the inner surface of the front side wall and the inner surface of the first side wall, so that at least a portion of the front side wall where the air duct is located and the first side wall form a smooth transition surface from the dust inlet to the dust outlet.

10. The dry cleaning module according to claim 9, characterized in that: The dust box further includes a second side wall provided on one end of the dust inlet, the second side wall being located between the front side wall and the rear side wall; the dust box further includes a third curved portion and a fourth curved portion, the inner surface of the third curved portion being a third curved surface, the second side wall and one end of the rear side wall being connected via the third curved portion; the inner surface of the fourth curved portion being a fourth curved surface, and the other end of the rear side wall being connected to the dust outlet via the fourth curved portion; The third curved surface is used to smoothly transition the inner surface of one end of the rear side wall to the inner surface of the second side wall, and the inner surface of the other end of the rear side wall is smoothly transitioned to the dust exhaust port through the fourth curved surface, so that the second side wall and the rear side wall where the air duct is located form a smooth transition surface from the dust inlet to the dust exhaust port.

11. The dry cleaning module according to claim 10, characterized in that: The air duct generally has an inverse "S" direction from the dust inlet toward the dust outlet.

12. The dry cleaning module according to claim 9, characterized in that: The front side wall includes a first front wall and a second front wall, the bottom of the second front wall is fixed to the top of the first front wall, the bottom of the first front wall is connected to the bottom of the dust box, and the top of the second front wall is connected to the top of the dust box; The dust inlet is provided on the first front wall; The inner surface of the second front wall is transitionally connected to the inner surface of the first side wall through the second arc-shaped surface, and at least a portion of the bottom of the second arc-shaped portion is connected to the first front wall.

13. The dry cleaning module according to claim 12, characterized in that: The bottom of the inner surface of the first front wall is smoothly connected to the upper surface of the bottom of the dust box through a first curved surface.

14. The dry cleaning module according to claim 12, characterized in that: A first angle is formed between the first front wall and the surface to be cleaned, and a second angle is formed between the second front wall and the surface to be cleaned. The first angle is smaller than the second angle.

15. The dry cleaning module according to claim 14, characterized in that: The inner surface of the first front wall is a first inclined surface that is inclined from the top toward the bottom; and / or The inner surface of the second front wall is a second inclined surface inclined from the top toward the bottom.

16. The dry cleaning module according to claim 12, characterized in that: The second front wall comprises at least a first section and a second section, wherein the first section and the second section are smoothly transitionally connected; the dust inlet is close to the first section and is distributed below the first section; The first section and the second section are respectively spaced apart from the rear side wall by a first spacing and a second spacing, wherein the first spacing is greater than the second spacing, so that a first longitudinal cross-sectional area formed between the first section and the rear side wall is greater than a second longitudinal cross-sectional area between the second section and the rear side wall.

17. The dry cleaning module according to claim 16, characterized in that: The second front wall also includes a third section, the inner surface of one end of the third section is smoothly connected to the inner surface of the first section through a fifth arcuate surface, and the inner surface of the other end of the third section is smoothly connected to the inner surface of the second section through a sixth arcuate surface.

18. The dry cleaning module according to claim 17, characterized in that: The inner surface of the third section is a third inclined surface inclined from the first section toward the second section.

19. The dry cleaning module according to claim 10, characterized in that: The right side end of the front side wall and the bottom of the dust box has a raised portion protruding toward the inner cavity of the dust box; The raised portion is located below the dust inlet, and the upper surface of the raised portion is a smooth curved surface; the front end of the raised portion is connected to the dust inlet, and the rear end extends along the direction of the third curved surface. Under the action of the first negative pressure or the second negative pressure, the smooth curved surface of the raised portion is used to guide the garbage entering from the dust inlet to flow from the smooth curved surface toward the rear side wall.

20. The dry cleaning module according to claim 19, wherein: The front end of the raised portion is connected to the dust inlet, and the rear end extends along the third curved surface to the bottom of the rear side wall and is located on the right side of the air outlet of the rear side wall.

21. The dry cleaning module according to claim 20, characterized in that: The front end of the raised portion is connected to the bottom portion of the dust inlet.

22. The dry cleaning module according to claim 20, wherein: The rear end of the smooth curved surface of the raised portion is smoothly transitionally connected to the inner surface of the rear side wall; and / or The smooth curved surface of the raised portion is smoothly transitionally connected to the bottom of the third arc-shaped surface; and / or The smooth curved surface of the raised portion is smoothly transitionally connected to the upper surface of the front side wall and the bottom of the dust box.

23. The dry cleaning module according to claim 22, characterized in that: The inner surface of the top of the dust box is provided with a drainage boss protruding downward toward the inner cavity of the dust box; The rear end of the drainage boss is connected to the top of the dust outlet, and the front end extends forward along the second arc surface; the lower surface of the drainage boss is a smooth curved surface, which is lower than the inner surface of the top of the dust box adjacent thereto.

24. The dry cleaning module according to claim 23, wherein: The front side end of the drainage boss extends to the left side end of the front side wall, and the right side end of the drainage boss is smoothly transitionally connected to the inner surface of the top of the dust box.

25. A dust box, characterized in that: include A box body, wherein a dust inlet is provided on the front side wall of the box body, and a dust outlet is provided on the side wall of the box body located between the front side wall and the rear side wall; an air duct is formed in the box body from the dust inlet to the dust outlet; and at least a portion of the inner surface of the side wall of the box body where the air duct is located has a smooth transition surface from the dust inlet to the dust outlet; Under the action of the first negative pressure, the garbage is sucked into the air duct through the dust inlet; under the action of the second negative pressure, the airflow through the dust inlet drives the garbage in the box toward the dust outlet, so that the garbage is discharged from the dust outlet.

26. The dust box according to claim 25, characterized in that: The box body further includes a first arc-shaped portion, and the bottom of the front side wall and the bottom of the box body are connected by the first arc-shaped portion; The upper surface of the first arc-shaped portion is a first arc-shaped surface, and the inner surface of the front side wall and the upper surface of the bottom of the box body form a smooth transition connection through the first arc-shaped surface.

27. The dust box according to claim 25, characterized in that: The box body further includes a first side wall provided on one end of the dust exhaust port, the first side wall being located between the front side wall and the rear side wall; and the box body further includes a second arcuate portion, the inner surface of the second arcuate portion being a second arcuate surface; the first side wall and the front side wall are connected by the second arcuate portion; The second curved surface is used to smoothly transition between at least a portion of the inner surface of the front side wall and the inner surface of the first side wall, so that at least a portion of the front side wall where the air duct is located and the first side wall form a smooth transition surface from the dust inlet to the dust outlet.

28. The dust box according to claim 27, characterized in that: The box body further includes a second side wall provided on one end of the dust inlet, the second side wall being located between the front side wall and the rear side wall; the box body further includes a third curved portion and a fourth curved portion, the inner surface of the third curved portion being a third curved surface, the second side wall and one end of the rear side wall being connected via the third curved portion; the inner surface of the fourth curved portion being a fourth curved surface, the other end of the rear side wall being connected to the dust outlet via the fourth curved portion; The third curved surface is used to smoothly transition the inner surface of one end of the rear side wall to the inner surface of the second side wall, and the inner surface of the other end of the rear side wall is smoothly transitioned to the dust exhaust port through the fourth curved surface, so that the second side wall and the rear side wall where the air duct is located form a smooth transition surface from the dust inlet to the dust exhaust port.

29. The dust box according to claim 28, characterized in that: The air duct generally has an inverse "S" direction from the dust inlet toward the dust outlet.

30. The dust box according to claim 28, characterized in that: The front side wall includes a first front wall and a second front wall, the bottom of the second front wall is fixed to the top of the first front wall, the bottom of the first front wall is connected to the bottom of the box body, and the top of the first front wall is connected to the top of the box body; The dust inlet is provided on the first front wall; The inner surface of the second front wall is transitionally connected to the inner surface of the first side wall through the second arc-shaped surface, and at least a portion of the bottom of the second arc-shaped portion is connected to the first front wall.

31. The dust box according to claim 30, characterized in that: The bottom of the inner surface of the first front wall is smoothly connected to the upper surface of the bottom of the box body through a first arc surface.

32. The dust box according to claim 30, characterized in that: A first angle is formed between the first front wall and the surface to be cleaned, and a second angle is formed between the second front wall and the surface to be cleaned. The first angle is smaller than the second angle.

33. The dust box according to claim 32, characterized in that: The inner surface of the first front wall is a first inclined surface that is inclined from the top toward the bottom; and / or The inner surface of the second front wall is a second inclined surface inclined from the top toward the bottom.

34. The dust box according to claim 30, characterized in that: The second front wall comprises at least a first section and a second section, wherein the first section and the second section are smoothly transitionally connected; the dust inlet is close to the first section and is distributed below the first section; The first section and the second section are respectively spaced apart from the rear side wall by a first spacing and a second spacing, wherein the first spacing is greater than the second spacing, so that a first longitudinal cross-sectional area formed between the first section and the rear side wall is greater than a second longitudinal cross-sectional area formed between the second section and the rear side wall.

35. The dust box according to claim 34, characterized in that: The second front wall also includes a third section, the inner surface of one end of the third section is smoothly connected to the inner surface of the first section through a fifth arcuate surface, and the inner surface of the other end of the third section is smoothly connected to the inner surface of the second section through a sixth arcuate surface.

36. The dust box according to claim 35, characterized in that: The inner surface of the third section is a third inclined surface inclined from the first section toward the second section.

37. The dust box according to claim 30, characterized in that: The right side ends of the front side wall and the bottom of the box body have a raised portion protruding toward the inner cavity of the box body; the dust inlet is provided on the right end of the front side wall; The raised portion is located below the dust inlet, and the upper surface of the raised portion is a smooth curved surface; the front end of the raised portion is connected to the dust inlet, and the rear end thereof extends along the direction of the third curved surface and is connected to the third curved portion. Under the action of the first negative pressure or the second negative pressure, the smooth curved surface of the raised portion is used to guide the garbage entering from the dust inlet to flow from the smooth curved surface toward the rear side wall.

38. The dust box according to claim 37, characterized in that: An air outlet is provided on the rear side wall of the box body, and the air outlet is located between the dust outlet and the dust inlet; the air outlet is used to communicate with the main fan, and the main fan is used to generate the first negative pressure; The front end of the raised portion is connected to the dust inlet, and the rear end extends along the third curved surface to the bottom of the rear side wall and is located on the right side of the air outlet.

39. The dust box according to claim 38, characterized in that: The front end of the raised portion is connected to the bottom portion of the dust inlet.

40. The dust box according to claim 38, characterized in that The rear end of the smooth curved surface of the raised portion is smoothly transitionally connected to the inner surface of the rear side wall; and / or The smooth curved surface of the raised portion is smoothly transitionally connected to the bottom of the third arc-shaped surface; and / or The smooth curved surface of the raised portion is smoothly transitionally connected to the upper surfaces of the front side wall and the bottom of the box body.

41. The dust box according to claim 38, characterized in that The second front wall comprises at least a first section and a second section, wherein the first section and the second section are smoothly transitionally connected; the dust inlet is close to the first section and is distributed below the first section; The first section and the second section are respectively spaced apart from the rear side wall by a first spacing and a second spacing, and the first spacing is greater than the second spacing, so that a first longitudinal cross-sectional area formed between the first section and the rear side wall is greater than a second longitudinal cross-sectional area formed between the second section and the rear side wall; the bottom of the first front wall is connected to the bottom of the box body through a first curved surface; the first front wall, the first curved surface and the right side of the bottom of the box body form the raised portion.

42. The dust box according to claim 37, characterized in that The inner surface of the top of the box body is provided with a drainage boss protruding downward into the inner cavity of the box body; The rear end of the drainage boss is connected to the top of the dust exhaust port, and the front end extends forward along the second arc surface; the lower surface of the drainage boss is a smooth curved surface, and the smooth curved surface is lower than the inner surface of the top of the box body adjacent thereto.

43. The dust box according to any one of claims 25-37, 42, characterized in that: The dust box further includes an exhaust port provided on the rear side wall of the box body, the exhaust port being located between the dust inlet and the dust outlet, the exhaust port being provided with a main fan for providing the first negative pressure; the dust inlet being provided at the right end of the front side wall; The dust exhaust port can be connected to a dust collecting fan on the base station, and the dust collecting fan is used to generate the second negative pressure.

44. A cleaning device, characterized in that include body; The dry cleaning module according to any one of claims 1 to 24; The dust exhaust port can be connected to a dust collecting fan on the base station, and the dust collecting fan is used to generate the second negative pressure.

45. The cleaning device according to claim 44, characterized in that The dust box of the dry cleaning module an exhaust port on the rear side wall, the exhaust port being located between the dust inlet and the dust exhaust port, the exhaust port being provided with a main fan, the main fan being used to provide the first negative pressure; A filter assembly is provided on the air path between the inner cavity of the dust box and the air outlet; The air outlet end of the dust collecting fan is connected to the air duct of the main fan. When the main fan stops working, the dust collecting fan generates the second negative pressure. The wind from the air outlet end of the dust collecting fan is blown onto the filter assembly through the air duct of the main fan to blow the dust on the filter assembly into the dust box.

Images