Cleaning apparatus

Abstract

A cleaning apparatus comprising a fan assembly (300), a handle (500) and a support member (510), wherein the fan assembly (300) comprises a main housing (350) and an electric motor (360), the electric motor (360) being located in the main housing (350); the handle (500) is connected to the lower side of the fan assembly (300); the support member (510) is connected to the lower side of the fan assembly (300) and is spaced apart from the handle (500); and the connection between the handle (500) and the fan assembly (300) is located at the axial front end of the electric motor (360), and the connection between the support member (510) and the fan assembly (300) is located at the axial rear end of the electric motor (360).

Description

Cleaning device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present application claims priority to Chinese Patent Application No. 202422181024.3, filed on September 5, 2024, entitled “Cleaning device”, and Chinese Patent Application No. 202422484464.6, filed on October 14, 2024, entitled “Cleaning device”, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of cleaning, in particular to a cleaning device. BACKGROUND

[0004] The cleaning device is a mechanical device designed for cleaning. The cleaning device plays a role in efficient cleaning, reduces the labor cost of cleaning, and improves work efficiency and cleanliness. With the continuous development of science and technology, more and more cleaning devices are applied to households, hotels, offices, large conference rooms and other places. However, the traditional cleaning device still has problems such as unreasonable structure, inconvenient use, and unsatisfactory cleaning effect. SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide a cleaning device that improves the stability of the cleaning device through structural improvement.

[0006] To achieve the above-mentioned purpose, the embodiments of the present application provide a cleaning device, comprising:

[0007] A fan assembly comprising a main housing and a motor, wherein the motor is located in the main housing;

[0008] A handle connected to the lower side of the fan assembly;

[0009] A support connected to the lower side of the fan assembly and spaced apart from the handle;

[0010] Wherein, the connection part of the handle and the fan assembly is located at the front end of the axial direction of the motor, and the connection part of the support and the fan assembly is located at the rear end of the axial direction of the motor.

[0011] The cleaning device according to the embodiments of the present application has at least one of the following beneficial effects:

[0012] In the cleaning device of the embodiments of the present application, the connection part of the handle and the fan assembly is located at the front end of the axial direction of the motor, and the connection part of the support and the fan assembly is located at the rear end of the axial direction of the motor, which improves the support stability of the handle and the support to the cleaning device.

[0013] In some embodiments of the present application, the cleaning device further comprises a power supply assembly connected to the handle and the lower end of the support, the power supply assembly comprising a battery compartment and a power supply battery, the power supply battery being located in the battery compartment, the bottom wall of the battery compartment constituting a placement surface for placing the cleaning device.

[0014] In some embodiments of the present application, in the front-rear direction, when the plane on which the placement surface is located is a horizontal plane, the motor is inclined downward from front to rear, and the axis of the motor forms an angle β with the horizontal plane, satisfying: β > 0°.

[0015] In some embodiments of the present application, the angle β satisfies: 5° ≥ β ≥ 1°.

[0016] In some embodiments of the present application, a plurality of power supply batteries are provided, and the plurality of power supply batteries are arranged side by side in the front-rear direction.

[0017] In some embodiments of the present application, the motor is located on the front side of the center of gravity of the power supply battery.

[0018] In some embodiments of the present application, the handle is provided with a second side surface facing the support, the second side surface being provided with a gripping portion suitable for gripping by fingers, and the center of gravity of the power supply battery is located on the front side of the gripping portion.

[0019] In some embodiments of the present application, the handle is arc-shapedly curved, the center line of the handle is substantially a circular arc line, the center of the circle on which the circular arc line is located is located on the front side of the handle, and the circle on which the circular arc line is located is separated from the axis of the motor of the fan assembly.

[0020] In some embodiments of the present application, the cleaning device further comprises a dust cup device connected to the front end of the fan assembly, and the support is located on the rear side of the dust cup device.

[0021] In some embodiments of the present application, the support is inclined toward the rear from top to bottom.

[0022] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the accompanying drawings and embodiments, in which:

[0024] FIG. 1 is a structural schematic view of a cleaning device according to an embodiment of the present application;

[0025] Figure 2 is an assembly view of a dust cup and a duct in accordance with an embodiment of the present application;

[0026] Figure 3 is an assembly view of a dust cup and a duct in accordance with an embodiment of the present application, showing a first direction and a second direction;

[0027] Figure 4 is an enlarged view of a portion A in Figure 3;

[0028] Figure 5 is an enlarged view of a portion B in Figure 3;

[0029] Figure 6 is an assembly view of a first duct body and a second duct body in accordance with an embodiment of the present application;

[0030] Figure 7 is a structural view of a first duct body in accordance with an embodiment of the present application;

[0031] Figure 8 is a structural view of a first duct body in accordance with an embodiment of the present application;

[0032] Figure 9 is a structural view of a second duct body in accordance with an embodiment of the present application;

[0033] Figure 10 is a structural view of a second duct body in accordance with an embodiment of the present application;

[0034] Figure 11 is a structural view of a second duct body in accordance with an embodiment of the present application;

[0035] Figure 12 is an enlarged view of a portion C in Figure 3;

[0036] Figure 13 is a structural view of a dust cup device in accordance with an embodiment of the present application;

[0037] Figure 14 is a front cross-sectional view of a dust cup device in accordance with an embodiment of the present application;

[0038] Figure 15 is an axonometric cross-sectional view of a dust cup device in accordance with an embodiment of the present application;

[0039] Figure 16 is a structural view of a separation unit in accordance with an embodiment of the present application;

[0040] Figure 17 is a schematic view of an inner duct and an outer duct in accordance with an embodiment of the present application;

[0041] Figure 18 is an assembly view of a dust cup and a fan assembly in accordance with an embodiment of the present application;

[0042] Figure 19 is an assembly view of a dust cup and a fan assembly in accordance with an embodiment of the present application;

[0043] Figure 20 is an enlarged view of a portion D in Figure 19;

[0044] Figure 21 is an assembly view of a fourth connecting member and a dust cup device in accordance with an embodiment of the present application;

[0045] Fig. 22 is an assembly view of a damping structure and a motor according to an embodiment of the present application;

[0046] Fig. 23 is a structural view of an electrostatic sheet according to an embodiment of the present application;

[0047] Fig. 24 is an enlarged view of a portion of Fig. 19;

[0048] Fig. 25 is an assembly view of a cover device and a fan assembly according to an embodiment of the present application, in which the cover device is in a second state;

[0049] Fig. 26 is a structural view of a fan assembly according to an embodiment of the present application, in which a second fixing member is shown;

[0050] Fig. 27 is a structural view of a cleaning apparatus according to an embodiment of the present application, in which a cover device is in a first state;

[0051] Fig. 28 is a partial front cross-sectional view according to an embodiment of the present application;

[0052] Fig. 29 is a partial front cross-sectional view of a cleaning apparatus according to an embodiment of the present application;

[0053] Fig. 30 is a front view of an inner portion of a dust cup device of a cleaning apparatus according to an embodiment of the present application;

[0054] Fig. 31 is an axial view of a separation unit of a cleaning apparatus according to an embodiment of the present application; and

[0055] Fig. 32 is an axial view of a separation unit of a cleaning apparatus according to an embodiment of the present application.

[0056] 100, air duct assembly; 110, air duct; 110a, air inlet channel; 111, first pipe body; 111a, first end face; 111b, first area face; 111c, second area face; 111d, sealing groove; 111e, boss; 111f, straight pipe section; 111g, wire buckle; 1110, first lock buckle protrusion; 1111, second lock buckle protrusion; 112, second pipe body; 112a, second end face; 112b, connecting portion; 112c, protrusion; 112d, avoiding gap; 112e, third end face; 112f, guide portion; 1120, second clamping piece; 1120a, clamping hook; 1121, first clamping piece; 1121a, clamping hole; 113, arc structure; 113a, first curved portion; 113b, second curved portion; 120, first connecting piece; 130, pipe shell; 140, cover shell structure; 200, dust cup device; 200a, air inlet; 200b, negative pressure chamber; 210, dust cup; 210a, dust collecting cavity; 210b, air outlet; 210c, first dust collecting chamber; 220, second connecting piece; 230, cup cylinder cover; 240, separation assembly; 241, first separator; 242, second separator; 242a, separation unit; 242b, channel; 242c, second dust collecting chamber; 242d, air inlet gap; 242e, spacing space; 2420, inner pipe; 2421, outer pipe; 2421a, end plate; 2421b, first pipe wall; 2421c, first pipe wall; 2422, flow guide structure; 243, partition plate; 243a, third through hole; 244, dust outlet portion; 244a, baffle; 244b, connecting rib; 244c, dust outlet; 250, filter screen; 260, first cylinder body; 260a, blocking cylinder; 270, second cylinder body; 280, transition section; 280a, annular plate; 290, third connecting piece; 290a, protruding block; 290b, buckling groove; 290c, first abutment face; 291, motor front filter; 300, fan assembly; 300a, containing shell; 300b, air inlet grille; 310, second fixing piece; 320, sealing ring; 330, fourth connecting piece; 330a, locking groove; 330b, second abutment face; 331, connecting head; 332, connecting handle; 333, limiting plate; 334, support handle; 335, elastic piece; 336, end shaft; 337, elastic piece mounting site; 340, mounting end cover; 340a, buckling protrusion; 340b, flat-bottomed groove; 350, main shell; 350a, mounting cavity; 350b, air outlet; 350c, fourth opening; 360, motor; 360a, motor housing; 360b, damping structure; 370, electrostatic sheet; 370a, electrostatic discharge sheet; 370b, base sheet; 370c, elastic sheet; 370d, conductive structure; 380, air outlet shell; 380a, first through hole; 380b, containing cavity; 380c, opening; 380d, cover structure; 380e, third opening;380f, second through hole; 390, mounting bracket; 390a, air outlet chamber; 400, cover plate device; 410, cover plate; 420, rotating shaft; 430, connecting piece; 430a, wire arranging cavity; 430b, arc segment; 430c, straight segment; 440, first fixing piece; 440a, avoiding opening; 441, outer ring; 442, inner ring; 442a, clamping convex; 500, handle; 500a, first side face; 500b, second side face; 500c, first air duct; 500d, accommodating space; 500e, communication hole; 510, supporting piece; 520, air pipe; 600, power supply assembly; 610, power supply wire; 620, battery compartment; 620a, first opening; 620b, second opening; 630, power supply battery; 640, charging connector; 700, sensor; 800, filter piece; 900, display assembly; O, axis of motor; V, placement plane; P1, air flow direction; P2, center line of handle; P3, extension line of circular arc along the circle; Q, center of gravity. DETAILED DESCRIPTION

[0057] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0059] In the description of the embodiments of the present application, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly and specifically limited.

[0060] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, and indicates that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone.

[0062] In the description of the embodiments of the present application, the technical terms "top", "bottom", "upper", "lower" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation, operate or be used, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0063] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0064] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0065] In the description of the embodiments of the present application, the technical terms "parallel", "vertical" and the like should be understood in a broad sense, and it should be understood that they are approximately parallel and approximately vertical within the acceptable error range in the art.

[0066] The present application provides a cleaning device for cleaning a surface to be cleaned, which can generate negative pressure to enable dust and debris on the surface to be cleaned to enter the interior of the cleaning device. Exemplarily, the cleaning device can be a vacuum cleaner.

[0067] Exemplarily, the surface to be cleaned can be a floor or a carpet.

[0068] Exemplarily, referring to FIG. 1, the cleaning device mainly includes the following working components: an air guide pipe assembly 100, a dust cup device 200, a fan assembly 300, a cover plate device 400, a handle 500 and a power supply assembly 600.

[0069] The functions of the above-mentioned main working components of the cleaning device are as follows:

[0070] For example, referring to FIG. 3, the air duct assembly 100 comprises an air duct 110, which forms an air inlet channel 110a. The air duct assembly 100 is used to guide the airflow so that the air carrying dust and sundries enters the air inlet channel 110a, and then passes through the dust cup device 200.

[0071] For example, the dust cup device 200 can perform cyclone separation on the dust and air to separate the dust and sundries from the airflow, and the separated airflow flows to the fan assembly 300.

[0072] It should be noted that in some embodiments, referring to FIGS. 1-3, the central axis of the dust cup device 200 and the central axis of the air duct assembly 100 are offset from each other, which can increase the size of the dust cup device 200 along the central axis of the dust cup device 200 as much as possible under the condition that the overall length of the cleaning device is constant, so that the dust cup device 200 can accommodate more dust and sundries, and the problem that the user needs to frequently disassemble the dust cup device 200 for dust removal is alleviated; at the same time, such arrangement can facilitate the user to disassemble and install the dust cup device 200. It can be understood that the embodiments of the present application are not limited to the central axis of the dust cup device 200 and the central axis of the air duct assembly 100 being offset from each other. In some embodiments, the central axis of the dust cup device 200 and the central axis of the air duct assembly 100 can coincide.

[0073] For example, the fan assembly 300 can generate negative pressure to make the external airflow enter the air duct assembly 100, and the separated airflow flows to the outside through the air outlet of the fan assembly 300 after passing through the fan assembly 300.

[0074] For example, referring to FIG. 1, the cover plate device 400 is located at the rear side of the fan assembly 300.

[0075] For example, the lower side of the fan assembly 300 is provided with a handle 500, which refers to the part used for the user to hold, and the user can move the cleaning device by holding the handle 500 to clean the surface to be cleaned.

[0076] For example, the lower side of the handle 500 is also provided with a power supply assembly 600 to provide power supply for the fan assembly 300 and the like.

[0077] Next, according to the flow direction of the airflow in the cleaning device, each working component will be introduced one by one.

[0078] First, please refer to FIG. 3, which shows a wind guide pipe assembly 100, the central axis of which is staggered with the central axis of the dust cup device 200. Further refer to FIGS. 3-11, the wind guide pipe assembly 100 includes a wind guide pipe 110, which includes a first pipe body 111 and a second pipe body 112. One end of the second pipe body 112 is connected to one end of the first pipe body 111, thereby realizing the change of airflow direction. Specifically, please refer to FIG. 3, the dust gas sucked in first flows along a first direction R1, and when it reaches the rightmost end of the wind guide pipe 110, it changes direction and flows along a second direction R2, for example, by 80° or 90°, etc., which is not limited here. In this embodiment, by designing the wind guide pipe 110 as a split structure, the first pipe body 111 and the second pipe body 112 can be independently manufactured in the mold, reducing the difficulty of the wind guide pipe 110 out of the mold. Compared with the inner tube wall formed by the whole out of the mold, the inner tube wall of the first pipe body 111 and the second pipe body 112 is smoother, which improves the smoothness of airflow and makes the cleaning effect of the cleaning equipment better.

[0079] It should be noted that the front end of the wind guide pipe 110 can be connected to one or more plug-in pipes, and the front end of the plug-in pipe can be further connected to a brush, etc., to adapt to different application scenarios.

[0080] In some embodiments, please refer to FIG. 3, since the first pipe body 111 and the second pipe body 112 are to realize the change of airflow direction, in order to ensure that the dust gas can flow smoothly and reduce the jamming of impurities, the internal passage is set as an arc transition.

[0081] Specifically, in some embodiments, please refer to FIGS. 3 and 8, at the connecting part of the first pipe body 111 and the second pipe body 112, the inner side wall of the first pipe body 111 towards the second pipe body 112 is at least partially set as an arc surface. It should be noted that the arc surface is located on the rear side of the central axis of the second pipe body 112.

[0082] In another embodiment, please refer to FIGS. 3 and 10, at the connecting part of the first pipe body 111 and the second pipe body 112, the inner side wall of the second pipe body 112 towards the first pipe body 111 is at least partially set as an arc surface. It should be noted that the arc surface is located on the front side of the central axis of the second pipe body 112.

[0083] It can be understood that the arc can be one of the circular arcs of a circle, or a plurality of circular arcs or a plurality of line connections to form a smooth transition line or other smooth curve.

[0084] In some embodiments, referring to FIG. 3, the connecting part of the first pipe body 111 and the second pipe body 112 is provided as an arc structure 113, which includes a first curved part 113a and a second curved part 113b located at opposite sides of the arc structure 113. It can be understood that the first curved part 113a refers to the part connected with the first pipe body 111 and curved towards the second pipe body 112, and the second curved part 113b refers to the part connected with the second pipe body 112 and curved towards the first pipe body 111.

[0085] Exemplarily, the first curved part 113a is integrally formed with the first pipe body 111.

[0086] Exemplarily, the second curved part 113b is integrally formed with the second pipe body 112.

[0087] In some embodiments, referring to FIG. 3 and FIG. 7, the first pipe body 111 includes a straight pipe segment 111f, which has a length greater than the arc length of the first curved part 113a, so as to facilitate the cleaner to reach a position far away, thereby increasing the cleaning range and reducing the need for the user to bend over greatly during use of the cleaner, wherein the straight pipe segment 111f refers to the part of the first pipe body 111 extending along the first direction R1.

[0088] It can be understood that the embodiments of the present application do not limit the length of the straight pipe segment 111f to be greater than the arc length of the first curved part 113a. Exemplarily, the length of the straight pipe segment 111f is less than or equal to the arc length of the first curved part 113a.

[0089] In some embodiments, referring to FIG. 3 and FIG. 4, the first curved part 113a includes a first end surface 111a, and the second curved part 113b includes a second end surface 112a, which are in abutment with each other.

[0090] In the scheme of the embodiments of the present application, the first end surface 111a and the second end surface 112a are in abutment with each other, so as to improve the sealing performance of the air guide pipe 110 and alleviate the situation of air flow moving between the gap between the first pipe body 111 and the second pipe body 112.

[0091] In some embodiments, referring to FIG. 7, the first end surface 111a includes a first area surface 111b and a second area surface 111c connected with each other, and the included angle formed by the intersection of the first area surface 111b and the second area surface 111c is an obtuse angle.

[0092] It should be noted that the first area surface 111b and the second area surface 111c can be a plane or an arc surface. When the first area surface 111b and / or the second area surface 111c is an arc surface, the included angle formed by the first area surface 111b and the second area surface 111c towards the second end surface 112a is the included angle formed by the tangent plane corresponding to the arc surface at the intersection position of the first area surface 111b and the second area surface 111c.

[0093] In the scheme of the embodiment of the present application, by setting the included angle of the first area surface 111b and the second area surface 111c as an obtuse angle, the first end surface 111a and the second end surface 112a can be conveniently adhered to each other. Furthermore, the obtuse angle can reduce the processing requirements for the mold, the mold is simple to take out, and the obtuse angle can reduce the stress concentration.

[0094] It can be understood that the embodiment of the present application does not limit the included angle of the first area surface 111b and the second area surface 111c to be an obtuse angle. For example, the included angle of the first area surface 111b and the second area surface 111c can be a right angle or an acute angle.

[0095] In some embodiments, referring to FIGS. 6 and 8, a sealing member (not shown in the figure) is arranged between the second pipe body 112 and the first pipe body 111. The first pipe body 111 is provided with a sealing groove 111d for accommodating the sealing member. Specifically, the sealing groove 111d is arranged on the first end surface 111a.

[0096] For example, the sealing member is an O-ring.

[0097] For example, the material of the sealing member is silicone or rubber.

[0098] In the scheme of the embodiment of the present application, by adding the sealing member between the second pipe body 112 and the first pipe body 111, the sealing member can further increase the sealing property between the first pipe body 111 and the second pipe body 112, avoid dust from leaking out of the first pipe body 111 and the second pipe body 112 during the working process of the cleaning equipment, and make the air guide pipe assembly 100 more stable and reliable during use.

[0099] It can be understood that the embodiment of the present application does not limit whether the sealing member is arranged between the second pipe body 112 and the first pipe body 111.

[0100] In some embodiments, referring to FIGS. 5 and 6, the connecting end of the first pipe body 111 and the pipe body 112 is provided with a boss 111e, the sealing groove 111d is arranged on the boss 111e, and the second pipe body 112 is provided with a connecting portion 112b which can be adapted to be connected to the boss 111e.

[0101] It can be understood that the connecting portion 112b is arranged on the second end surface 112a. It can be understood that the connecting portion 112b is arranged on the second end surface 112a.

[0102] In the scheme of the embodiments of the present application, by arranging the sealing groove 111d on the boss 111e, the strength of the first pipe body 111 can be ensured even if the sealing groove 111d is arranged. In addition, the boss 111e can improve the connection reliability of the first pipe body 111 and the second pipe body 112.

[0103] It can be understood that the embodiments of the present application do not limit whether the outer side wall of the first pipe body 111 is provided with the boss 111e.

[0104] In some embodiments, referring to FIG. 5, the connecting part 112b includes a protrusion 112c for pressing the sealing member to match the sealing groove 111d, so as to reduce the gap between the first pipe body 111 and the second pipe body 112 and further improve the sealing performance.

[0105] It can be understood that the embodiments of the present application do not limit whether the connecting part 112b is provided with the protrusion 112c.

[0106] In some embodiments, the first pipe body 111 and the second pipe body 112 can be fixed by a buckle structure. The buckle structure can be one or more.

[0107] In some embodiments, referring to FIGS. 6 to 11, the first pipe body 111 is provided with a first locking protrusion 1110, wherein the first locking protrusion 1110 is located on one side of the first pipe body 111 along the first direction R1, and the first locking protrusion 1110 protrudes from the first pipe body 111 along the first direction R1 (specifically, the rear direction). For example, the first locking protrusion 1110 is provided with two, respectively on both sides along the third direction R3. It can be understood that the first locking protrusion 1110 can be more than three. The second pipe body 112 is provided with a first clamping member 1121, and the first clamping member 1121 is provided with a clamping hole 1121a for clamping the first locking protrusion 1110, so that the inner wall around the clamping hole 1121a limits the first locking protrusion 1110. It can be understood that the number of the first clamping member 1121 is consistent with the number of the first locking protrusion 1110.

[0108] In some embodiments, referring to FIGS. 6-11, the first pipe body 111 is further provided with a second locking protrusion 1111 on the other side (specifically, the front side) of the first pipe body 111 along the first direction R1, and the second locking protrusion 1111 protrudes from the first pipe body 111 along a direction perpendicular to the first direction R1. For example, two second locking protrusions 1111 are provided along the two sides of the third direction R3, and it can be understood that more than two second locking protrusions 1111 can be provided. The second pipe body 112 is provided with a second clamping member 1120, and the second clamping member 1120 is provided with a clamping hook 1120a abutting the lower end surface of the first locking protrusion 1110. It can be understood that the number of second clamping members 1120 is consistent with the number of second locking protrusions 1111.

[0109] During installation, the clamping hole 1121a is sleeved on the first locking protrusion 1110, and then the second pipe body 112 is rotated until the clamping hook 1120a is clamped on the second locking protrusion 1111, thereby completing the assembly of the first pipe body 111 and the second pipe body 112, and enabling the mutual positioning of the first pipe body 111 and the second pipe body 112 in multiple directions.

[0110] It can be understood that the embodiments of the present application do not limit the assembly mode between the first pipe body 111 and the second pipe body 112. For example, the first pipe body 111 and the second pipe body 112 can also be fixedly connected through screws or pins.

[0111] In some embodiments, referring to FIG. 3, the cleaning device further comprises a sensor 700 mounted on the inner wall of the air duct 110, and the sensor 700 is used to detect the amount of dust carried by the airflow in the air duct 110, so as to adjust the power of the fan assembly 300. The greater the amount of dust, the greater the power of the fan assembly 300.

[0112] It can be understood that the cleaning device is further provided with a wire arrangement (not shown in the figure), and the wire arrangement is used to connect components such as the sensor 700. Referring to FIGS. 8 and 9, the first pipe body 111 is provided with a wire buckle 111g for fixing the wire arrangement, so that the wire arrangement is arranged along a predetermined direction. The second pipe body 112 is provided with a avoiding gap 112d for avoiding the wire buckle 111g and the wire arrangement.

[0113] In some embodiments, referring to FIGS. 2 and 3, the dust cup device 200 is connected and mounted on the air duct assembly 100, wherein the dust cup device 200 comprises a dust cup 210 connected to each other, and the dust cup 210 has a dust collecting cavity 210a.

[0114] Please further refer to FIG. 3 and FIG. 6, the second tube body 112 comprises a third end surface 112e, the third end surface 112e is used for connecting the second tube body 112 with the air inlet 200a of the dust cup device 200, so as to realize the communication between the dust collection cavity 210a and the air inlet channel 110a, and guide the dust gas from the first tube body 111 to the dust cup device 200.

[0115] In some embodiments, in order to form the air inlet channel 110a, the second tube body 112 is provided with a guide portion 112f, the guide portion 112f is located between the second end surface 112a and the third end surface 112e, and the air inlet channel 110a is located in the guide portion 112f.

[0116] Please refer to FIG. 11, in the projection plane perpendicular to the first direction R1, the axis direction of the guide portion 112f and the second direction R2 have an included angle a, which satisfies 0°≤a≤90°, for example, a can be 0°, 30°, 45°, 60° or 90°, etc.

[0117] In some embodiments, in the projection plane perpendicular to the first direction R1, the projection of the central axis of the second tube body 112 and the second direction R2 have an included angle a, which satisfies 0°<a<90°, for example, a can be 10°, 30°, 45°, 60° or 80°, etc. By thus setting, when the dust gas of the air guide pipe 110 enters the dust cup 210, it is easy to form a spiral airflow, which is beneficial to the cyclone separation of dust and air.

[0118] It can be understood that in some embodiments, the included angle a satisfies the condition that the dust gas enters the dust cup 210 along the tangential direction of the inner wall of the dust cup 210, and the dust gas can flow along the circumferential direction of the inner wall of the dust cup 210, which is more conducive to the formation of a spiral airflow.

[0119] In some embodiments, in order to realize the connection and fixation of the dust cup device 200 and the air guide pipe assembly 100, the air guide pipe assembly 100 comprises a first connecting piece 120, and the dust cup device 200 comprises a second connecting piece 220 arranged on the outer side wall of the dust cup 210, when the second connecting piece 220 is installed on the first connecting piece 120, the air inlet 200a and the air inlet channel 110a are communicated.

[0120] In some embodiments, please refer to FIG. 3 and FIG. 12, the first connecting piece 120 is arranged as a connecting groove, and the second connecting piece 220 is arranged as a hook, the second connecting piece 220 can extend into the connecting groove from the slot opening of the connecting groove, so that the hook and the connecting groove are buckled with each other, thereby avoiding the situation of jamming during the installation of the dust cup device 200, and improving the disassembly efficiency.

[0121] It should be noted that the first connecting piece 120 comprises a top wall and a side wall, thereby forming a connecting groove, and the slot opening of the connecting groove is directed to the dust cup device 200 along the first direction R1.

[0122] In some embodiments, the outer edge of the top wall is chamfered to facilitate the hook to be inserted.

[0123] In some embodiments, the air guide pipe 110 is integrally formed with the first connecting member 120. Further, the side wall is in the shape of a straight surface arranged obliquely, thereby facilitating the integral formation.

[0124] It can be understood that, referring to FIG. 2, the air guide pipe assembly 100 further comprises a pipe shell 130 arranged outside the air guide pipe 110, the pipe shell 130 is fixed on the air guide pipe 110 by means of clamping or threaded connection, and the first connecting member 120 is formed by part of the pipe shell 130.

[0125] Specifically, the upper side of part of the pipe shell 130 is formed with a gap, and the top wall is formed by the part of the pipe shell wall located around the gap. When the hook is inserted into the connecting groove, part or all of the hook is located in the gap. Through the above arrangement, the upper side of the pipe shell 130 can support the dust cup device 200, and the peripheral wall of the gap can limit the second connecting member 220, thereby improving the stability of the installation of the dust cup device 200. In addition, the above arrangement is also beneficial to the processing and manufacturing of the first connecting member 120.

[0126] Exemplarily, the second connecting member 220 is integrally formed with the dust cup 210.

[0127] It should be noted that the wire fixing buckle 111g and the wire are located in the gap space between the pipe shell 130 and the first pipe body 111.

[0128] In some embodiments, the dust gas entering the dust cup device 200 through the air inlet 200a can be further subjected to cyclone separation by the separation assembly 240. Specifically, referring to FIGS. 14 and 15, one end of the dust cup 210 is provided with an air outlet 210b, and the other end is provided with an openable barrel cover 230, and the separation assembly 240 is located in the dust cup 210.

[0129] In some embodiments, referring to FIGS. 13 to 17, the separation assembly 240 comprises a first separator 241 and a second separator 242. The first separator 241 is arranged in a cylindrical shape, and a filter screen cylinder 250 is arranged thereon, which is used for performing primary separation on the dust gas sent into the dust cup device 200 by the second pipe body 112. The second separator 242 is located inside the cylindrical first separator 241, and is used for performing secondary separation on the dust gas after the first separator 241.

[0130] It can be understood that the whole filter screen cylinder 250 can be made into a filter screen, or filter screens are arranged at intervals on the filter screen cylinder 250.

[0131] It can also be understood that the material of the filter screen cylinder 250 can be metal or plastic.

[0132] In some embodiments, referring to FIGS. 14 and 15, the first separator 241 and the inner wall of the dust cup 210 form a first dust collecting chamber 210c. It can be understood that the first dust collecting chamber 210c is connected to the interior of the first separator 241 only through the holes on the filter screen cylinder 250. The dust gas entering the dust cup 210 forms a spiral airflow along the inner wall of the first dust collecting chamber 210c, and some impurities are left in the first dust collecting chamber 210c, and the filtered airflow enters the interior of the first separator 241 through the filter screen cylinder 250.

[0133] It can be understood that the rear side of the first separator 241 is connected to the dust cup 210, and the front side of the first separator 241 is connected to the cylinder cover 230.

[0134] In some embodiments, referring to FIG. 15, the interior of the first separator 241 is provided with a partition plate 243 at the rear end, and the partition plate 243 is provided with at least one third through hole 243a connected to the air outlet 210b. The front side of the partition plate 243 is provided with the second separator 242, and the second separator 242 is provided with at least one separation unit 242a, and the internal passage formed by the separation unit 242a is connected to the third through hole 243a, so that the airflow separated by the second separator 242 flows to the air outlet 210b through the third through hole 243a.

[0135] It can be understood that the embodiments of the present application do not limit the number of separation units 242a. For example, the number of separation units 242a is single (as shown in FIG. 30), or two, three or more (as shown in FIGS. 16 and 32).

[0136] In some embodiments, referring to FIG. 15, each separation unit 242a includes an inner tube 2420 and an outer tube 2421, the inner tube 2420 is directly connected to the third through hole 243a, and the outer tube 2421 is spaced apart from the cylinder wall of the first separator 241 to form a spacing space 242e, at least part of the inner tube 2420 extends into the outer tube 2421, and the end of the outer tube 2421 close to the partition plate 243 is formed with an air inlet gap 242d, the airflow after one-stage separation passes through the filter screen cylinder 250 into the spacing space 242e, and then enters the separation unit 242a through the air inlet gap 242d for two-stage separation.

[0137] It can be understood that the spacing space 242e is connected to the first dust collecting chamber 210c only through the holes on the filter screen cylinder 250, and specifically, the inner side wall of the end of the filter screen cylinder 250 towards the cylinder cover 230 and the outer side wall of the outer tube 2421 can be provided with a sealing plate for plugging.

[0138] In some embodiments, referring to Figs. 14 and 15, the portion of the first separator 241 inside and in front of the second separator 242 constitutes a second dust collection chamber 242c, which is in communication with both the outer tube 2421 and the inner tube 2420.

[0139] It can be understood that, referring to Figs. 15, 30 and 32, the inner tube 2420 is spaced apart from the outer tube 2421 to form a channel 242b, and the airflow enters the channel 242b through the air inlet gap 242d for secondary separation.

[0140] It can be understood that, in some embodiments, referring to Figs. 30 and 32, the inner tube 2420 can be formed as an integral structure with the partition plate 243, for example, the inner tube 2420 is punched from the partition plate 243, and in other embodiments, the inner tube 2420 is separately machined from the partition plate 243, and the inner tube 2420 is connected to the partition plate 243 by welding, threaded connection or the like.

[0141] It should be noted that, in some embodiments, referring to Figs. 15 to 17, 30 and 32, the overall length of the outer tube 2421 is greater than the length of the inner tube 2420 extending into the outer tube 2421, so as to better improve the dust-gas separation effect.

[0142] It can also be understood that, in some embodiments, referring to Fig. 15, the outer tube 2421 is spaced apart from the partition plate 243 at the end of the outer tube 2421 close to the partition plate 243 along the axial direction, thereby forming the air inlet gap 242d.

[0143] In some embodiments, referring to Figs. 30 and 32, the outer tube 2421 is connected to the partition plate 243, and an opening extending along the axis of the outer tube 2421 is formed on the tube wall of the end of the outer tube 2421 close to the partition plate 243, which forms the air inlet gap 242d. It can be understood that the length of the air inlet gap 242d extending along the axis of the outer tube 2421 can be reasonably selected according to the volume of the first separator 241.

[0144] In some embodiments, referring to Figs. 14 and 15, the separation unit 242a further comprises a dust outlet 244 connected to the end of the outer tube 2421 away from the inner tube 2420, and the inner diameter of the dust outlet 244 gradually decreases in the direction away from the outer tube 2421.

[0145] In the scheme of the embodiments of the present application, the dust outlet 244 is substantially conical in structure, which can accelerate the rotation of the airflow, thereby improving the dust falling efficiency.

[0146] It can be understood that the embodiments of the present application do not limit the shape of the dust outlet 244, and the shape of the dust outlet 244 is exemplarily substantially conical cylindrical.

[0147] In some embodiments, referring to FIG. 30, the dust outlet end of the dust outlet portion 244 is provided with a baffle 244a, and a dust outlet 244c is formed between the baffle 244a and the peripheral wall of the dust outlet portion 244, so that the dust is discharged along the radial direction of the dust outlet portion 244 and falls into the second dust collection chamber 242c. In this way, the efficiency of dust-gas separation can be improved, and the dust-gas separation effect can be improved when the dust outlet end of the dust outlet portion 244 is large. For example, when only a small number of separation units 242a (such as 1 or 2) are provided.

[0148] In some embodiments, referring to FIG. 30, the baffle 244a and the peripheral wall of the dust outlet portion 244 are connected by two or more connecting ribs 244b, and the dust outlet 244c is formed between adjacent connecting ribs 244b.

[0149] In order to form a cyclone in the separation unit 242, the following solutions can be used.

[0150] In some embodiments, referring to FIG. 15, a guide structure 2422 for guiding the airflow is arranged in the channel 242b, so that the airflow in the channel 242b forms a cyclone, thereby improving the separation effect.

[0151] Specifically, referring to FIGS. 3, 15 and 17, the guide structure 2422 is a guide vane connected between the inner tube 2420 and the outer tube 2421. The guide vane extends along the axial direction of the outer tube 2421 and is arranged in a spiral shape around the inner tube 2420. The guide structure 2422 can guide the airflow to flow circumferentially in the channel 242b, so that the airflow rotates in the channel 242b. The dust and impurities mixed in the airflow are separated from the airflow under the action of centrifugal force and fall into the second dust collection chamber 242c. The separated air flows along the inner tube 2420 to the air outlet 210b under the action of negative pressure.

[0152] In another embodiment, referring to FIG. 16, the guide structure 2422 includes three guide vanes arranged circumferentially along the outer tube 2421 and arranged in a spiral shape around the inner tube 2420. The adjacent guide vanes are arranged at intervals, for example, the guide vanes can be uniformly distributed along the circumference of the outer tube 2421. Each guide vane guides the airflow along the circumference of the channel 242b to generate a cyclone in the outer tube 2421 to separate the dust carried in the airflow.

[0153] It should be noted that the number of guide vanes in the embodiments of the present application is not limited to one or three, but can also be two, four or more, which can be selected according to actual application requirements.

[0154] In some embodiments, referring to FIG. 17, the end of the guide vane away from the air inlet gap 242d is provided as a flat section parallel to the cross section of the inner tube 2420 along the axial direction of the inner tube 2420.

[0155] In some embodiments, the end of the guide vane is provided as a flat section along the air inlet direction of the channel 242b, so that the air flow can flow along the circumferential direction of the channel 242b when the air flow is guided out by the guide vane, and the air flow is more likely to form a cyclone in the inner cavity of the outer tube 2421, and the cyclone effect is better.

[0156] It can be understood that the embodiments of the present application do not limit the shape of the guide vane. For example, the guide vane is provided as a straight plate.

[0157] In some embodiments, the guide vane is provided as an integral structure with the inner tube 2420 and the outer tube 2421.

[0158] In the scheme of the embodiments of the present application, the guide vane is provided as an integral structure with the inner tube 2420 and the outer tube 2421, so that the overall strength of the separation unit 242a is higher.

[0159] It can be understood that the embodiments of the present application are not limited to the guide vane being provided as an integral structure with the inner tube 2420 and the outer tube 2421. For example, the guide vane, the inner tube 2420 and the outer tube 2421 can be separately manufactured, and then installed together after being separately manufactured.

[0160] In some embodiments, referring to FIGS. 30 and 32, the end of the outer tube 2421 close to the partition plate 243 is provided as a first tube section for forming the air inlet gap 242d by opening the tube wall 2421 of the outer tube 2421.

[0161] In some embodiments, referring to FIG. 32, the tube wall of the first tube section includes at least one second tube wall 2421c, and the distance between one end of the second tube wall 2421c and the axis of the outer tube 2421 is less than the distance between the other end of the second tube wall 2421c and the axis of the outer tube 2421 along the circumferential direction of the outer tube 2421, so as to form the air inlet gap 242d at one end and / or the other end of the second tube wall 2421c. The above arrangement can make the air flow form a cyclone along the circumferential direction of the second tube wall 2421c.

[0162] Specifically, referring to FIG. 32, the tube wall of the first tube section includes a plurality of second tube walls 2421c, and the plurality of second tube walls 2421c are distributed along the circumferential direction of the outer tube 2421, and the air inlet gap 242d is formed between the two ends of adjacent second tube walls 2421c. The above arrangement can improve the air inlet efficiency.

[0163] In some embodiments, referring to FIG. 30, the tube wall of the first tube section comprises a first tube wall 2421b and a second tube wall 2421c, the first tube wall 2421b is connected to the second tube wall 2421c along one end of the circumference of the first tube wall 2421b and one end of the circumference of the second tube wall 2421c, the other end of the circumference of the first tube wall 2421b and the other end of the circumference of the second tube wall 2421c are spaced apart to form an air inlet gap 242d, the distance between the second tube wall 2421c and the axis of the outer tube 2421 gradually increases along the extension direction from the connection end of the second tube wall 2421c to the free end of the second tube wall 2421c. The above arrangement can make the airflow form a cyclone along the circumference of the second tube wall 2421c and the first tube wall 2421b.

[0164] In some embodiments, referring to FIGS. 30-32, the connection part between the first tube wall 2421b and the second tube wall 2421c is smoothly transitioned.

[0165] In some embodiments, referring to FIGS. 30-32, the diameter of the circle on which the cross section of the first tube wall 2421b lies is smaller than the diameter of the circle on which the cross section of the second tube wall 2421c lies, and the connection part between the first tube wall 2421b and the second tube wall 2421c is tangentially connected.

[0166] In some embodiments, referring to FIGS. 30-32, the second tube wall 2421c and the first tube wall 2421b are connected by an end plate 2421a between one end of the second tube wall 2421c and one end of the first tube wall 2421b away from the baffle 243 along the axial direction of the outer tube 2421.

[0167] It can be understood that, referring to FIG. 30, a plurality of first tube walls 2421b and a plurality of second tube walls 2421c are formed along the circumference of the outer tube 2421, for example, when only a small number of separation units 242a (for example, 1, 2, etc.) are arranged, thereby forming a plurality of air inlet gaps 242d to improve the dust-gas separation efficiency.

[0168] It can be understood that the entire outer tube 2421 can be arranged as a first tube section, at this time, the air inlet gap 242d is formed through the outer tube 2421 along the axial direction thereof.

[0169] In some embodiments, referring to FIG. 30, the filter screen cylinder 250 of the first separator 241 is connected to one end of the cylinder cover 230, the second cylinder body 270 is sealingly connected to the cylinder cover 230, and the average inner diameter of the filter screen cylinder 250 is greater than the average inner diameter of the second cylinder body 270. The above arrangement can increase the overall volume of the first dust collecting chamber 210c.

[0170] It can be understood that the filter screen cylinder 250 is connected with the first cylinder body 260 through a transition section 280 to realize the transition of variable inner diameter, and the transition section 280 can be provided in a straight conical cylinder shape or an arc conical cylinder shape to improve the smoothness of airflow flow; in some embodiments, the transition section 280 is provided in an annular plate 280a, as shown in FIG. 30, which can simultaneously seal the end of the filter screen cylinder 250 towards the cylinder cover 230 and the outer tube 2421 to form a sealing plate.

[0171] It can be understood that, in some embodiments, referring to FIGS. 14 and 15, the filter screen 250 of the first separator 241 is connected with the first cylinder body 260 at an end thereof towards the cylinder cover 230, and the first cylinder body 260 is connected with the second cylinder body 270 at an end thereof towards the cylinder cover 230, and the second cylinder body 270 is connected with the cylinder cover 230.

[0172] It can be understood that, at this time, the second cylinder body 270 is provided with a transition section 280 connected with the first cylinder body 260 to realize the transition of variable inner diameter, and the transition section 280 can be provided in an annular plate 280a, a straight conical cylinder shape or an arc conical cylinder shape.

[0173] In some embodiments, referring to FIGS. 14 and 15, the transition section 280 is provided with a blocking cylinder 260a at an end thereof away from the cylinder cover 230, and the blocking cylinder 260a is spaced apart from the second cylinder body 270. When the cleaning device is in a working state, the blocking cylinder 260a can inhibit the dust in the first dust collecting chamber 210c, and when the airflow rolls up the dust and sundries in the first dust collecting chamber 210c, part of the dust can be blocked by the blocking cylinder 260a, thereby reducing the rolling back of the dust.

[0174] It can be understood that the blocking cylinder 260a can be provided with no air hole or a plurality of air holes, and when a plurality of air holes are provided, it is beneficial to the cleaning device in the working state, so that the dust gas rolled up in the first dust collecting chamber 210c can pass through the air holes when reaching the blocking cylinder 260a, thereby reducing the turbulence caused by the blocking of the blocking cylinder 260a.

[0175] In some embodiments, the inner diameter of the blocking cylinder 260a is greater than the inner diameter of the filter screen cylinder 250, which can improve the dust blocking capability and further reduce the rolling back of the dust.

[0176] In some embodiments, referring to Figs. 14 and 15, the inner diameters of the filter screen cylinder 250, the first cylinder body 260 (it is understood that the first cylinder body 260 can not be provided in some embodiments) and the blocking cylinder 260a gradually decrease along the axial direction close to the cylinder cover, thereby increasing the volume of the first dust collecting chamber 210c; in addition, due to the rotational airflow generated in the dust cup 210, the cross-sectional area of the first dust collecting chamber 210c gradually increases along the axial direction close to the cylinder cover by the above-mentioned arrangement, so that the airflow intensity gradually decreases, facilitating the deposition of dust at the position of the first dust collecting chamber 210c close to the cylinder cover 230, and reducing the amount of dust lifted due to the weak airflow intensity.

[0177] In some embodiments, referring to Figs. 14 and 15, the rear side of the partition plate 243 of the dust cup device 200 has a negative pressure chamber 200b, the airflow separated by two stages of dust-gas separation enters the negative pressure chamber 200b through the third through hole 243a, and further flows towards the fan assembly 300 under the action of negative pressure. A low-pressure buffer zone is easily formed in the negative pressure chamber 200b, improving the dust collection efficiency.

[0178] It is understood that, in some embodiments, referring to Fig. 30, the peripheral wall of the negative pressure chamber 200b, the partition plate 243 and the inner tube 2420 are provided as an integral structure, for example, the peripheral wall of the negative pressure chamber 200b, the partition plate 243 and the inner tube 2420 are formed by integral casting or integral stamping.

[0179] In some embodiments, referring to Figs. 14 and 15, a motor pre-filter 291 is provided in the negative pressure chamber 200b and at the air outlet 210b, to further filter the airflow and reduce the dust content of the airflow entering the fan assembly 300.

[0180] It is understood that a sealing ring can be provided around the motor pre-filter 291 to improve the sealing performance and improve the negative pressure efficiency.

[0181] It is also understood that the motor pre-filter 291 can be made of filter cotton, filter material, etc.; in some embodiments, the motor pre-filter 291 can fill the negative pressure chamber 200b.

[0182] In some embodiments, referring to Figs. 18 to 20, the rear end of the dust cup device 200 is detachably connected to the fan assembly 300, specifically, the dust cup device 200 includes a third connecting piece 290 connected to the dust cup 210, and the fan assembly 300 is provided with a fourth connecting piece 330, the third connecting piece 290 and the fourth connecting piece 330 cooperate to achieve detachable installation of the dust cup device 200 and the fan assembly 300.

[0183] In some embodiments, referring to FIG. 3, the third connecting member 290 is located at the top of the rear end of the dust cup 210, and the fourth connecting member 330 is located at the top of the front end of the fan assembly 300, so that the user can conveniently disassemble and assemble the dust cup device 200.

[0184] It can be understood that the third connecting member 290 and the dust cup 210 can be integrally formed.

[0185] In the scheme of the embodiments of the present application, the dust cup device 200 is connected and assembled with the air duct assembly 100 through the first connecting member 120 and the second connecting member 220, and is connected and assembled with the fan assembly 300 through the third connecting member 290 and the fourth connecting member 330, so that the installation stability of the dust cup device 200 can be further improved.

[0186] In some embodiments, referring to FIGS. 19 and 20, the fourth connecting member 330 has a locked state and an unlocked state, that is, when the fourth connecting member 330 is in the locked state, the fourth connecting member 330 can lock the third connecting member 290 to avoid the sudden situation that the dust cup device 200 is accidentally separated from the fan assembly 300 during the working process, and when the fourth connecting member 330 is in the unlocked state, the fourth connecting member 330 is separated from the third connecting member 290.

[0187] For example, the fourth connecting member 330 can rotate relative to the third connecting member 290 to switch between the unlocked state and the locked state, for example, the fourth connecting member 330 is connected to the fan assembly 300 through a rotating shaft 420, the axis direction of the rotating shaft 420 is perpendicular to the first direction R1 and the second direction R2 at the same time, so as to realize the rotation of the fourth connecting member 330; or the connection between the fourth connecting member 330 and the fan assembly 300 can be elastically deformed to realize the rotation of the fourth connecting member 330.

[0188] For example, referring to FIG. 20, the fourth connecting member 330 is formed with a locking groove 330a, and the third connecting member 290 is upwardly protruding and formed with a protrusion 290a, when the fourth connecting member 330 locks the third connecting member 290, the protrusion 290a is at least partially located in the locking groove 330a.

[0189] In the scheme of the embodiments of the present application, the locking groove 330a and the protrusion 290a cooperate to limit the movement of the dust cup device 200 in the axial direction and the circumferential direction, so as to further increase the stability of the dust cup device 200. At the same time, the protrusion 290a of the third connecting member 290 only needs to protrude a small height to realize the locking cooperation with the locking groove 330a, so that the overall structure of the dust cup device 200 is relatively flat, which is convenient for packaging.

[0190] It can be understood that, in some embodiments, at least part of the fourth connecting piece 330 forming the locking groove 330a can be elastically deformed, so as to realize the interference fit joint of the fourth connecting piece 330 and the third connecting piece 290.

[0191] For example, at least part of the fourth connecting piece 330 forming the locking groove 330a is made of an elastic material, specifically, the elastic material includes rubber, elastomer plastic, elastic foam material, elastic textile, etc.

[0192] In some embodiments, referring to FIG. 20, the third connecting piece 290 is formed with a buckling groove 290b on the side facing the negative pressure chamber 200b, and the mounting end cover 340 of the fan assembly 300 is formed with a buckling protrusion 340a protruding upward along the radial direction thereof, when the hook and the connecting groove are buckled with each other, the buckling protrusion 340a is at least partially located in the buckling groove 290b.

[0193] In the scheme of the embodiments of the present application, the third connecting piece 290 can be fixed relative to the fan assembly 300 through the buckling groove 290b and the buckling protrusion 340a, so as to increase the connection strength between the dust cup 210 and the fan assembly 300.

[0194] For example, the buckling groove 290b and the protrusion 290a are respectively located on opposite sides of the third connecting piece 290 along the up-down direction.

[0195] It should be noted that the embodiments of the present application do not limit whether the third connecting piece 290 is formed with the buckling groove 290b.

[0196] It can be understood that, in some embodiments, referring to FIG. 20, the rear side of the mounting end cover 340 is further provided with a sealing ring 320, so as to improve the sealing effect.

[0197] In some embodiments, referring to FIG. 21, the fourth connecting piece 330 includes a connecting head 331, a connecting handle 332 and a limiting plate 333, the locking groove 330a is arranged on the connecting head 331, the connecting handle 332 is used for connecting the fan assembly 300, the limiting plate 333 is arranged between the connecting head 331 and the connecting handle 332 and extends downward along the first direction R1, and the locking groove 330a is located on the side of the limiting plate 333 away from the connecting handle 332. When the locking groove 330a is buckled onto the protrusion 290a, the limiting plate 333 can abut against the mounting end cover 340 of the fan assembly 300, so as to provide a supporting force for the fourth connecting piece 330 and improve the assembly strength.

[0198] It should be noted that the mounting end cover 340 of the fan assembly 300 is provided with a flat-bottomed groove 340b at the corresponding position of the limiting plate 333, so as to increase the contact area of the bottom of the limiting plate 333 and the mounting end cover 340 and improve the supporting stability.

[0199] It can be understood that referring to FIG. 21, the flat bottom groove 340b is located at the rear side of the buckling protrusion 340a, when the third connecting member 290 and the fourth connecting member 330 are in the locked state, the protrusion 290a is located in the space formed by the buckling protrusion 340a, the locking groove 330a and the limiting plate 333, thereby making the locking strength higher.

[0200] It can be understood that the fourth connecting member 330 and the third connecting member 290 can also be locked and unlocked by other ways, for example, the fourth connecting member 81 and the third connecting member 290 can be set as the cooperation form of the bolt and the slot.

[0201] In some embodiments, referring to FIG. 21, the two sides of the connecting handle 332 of the fourth connecting member 330 are also connected with two supporting handles 334, the supporting handle 334 is clamped in the fan assembly 300, the fourth connecting member 330 further comprises a resilient member 335, the resilient member 335 abuts against the supporting handle 334, so as to exert a pushing force on the supporting handle 334, the pushing force is used for automatically returning the fourth connecting member 330 from the unlocked state to the locked state, to realize the automatic reset.

[0202] It can be understood that the resilient member 335 can be set as two or more, to respectively abut against the two supporting handles 334.

[0203] It can be understood that referring to FIG. 21, the supporting handle 334 is provided with a spring mounting position 337 at the corresponding position.

[0204] It can be understood that the resilient member 335 is set as an axial compression spring, when the fourth connecting member 330 is in the locked state, the compression force of the compression spring is greater than or equal to 0 Newton, when the fourth connecting member 330 changes from the locked state to the unlocked state, the compression force of the compression spring gradually increases.

[0205] In some embodiments, referring to FIG. 21, the free end of the two supporting handles 334 is provided with an end shaft 336, the end shaft 336 is rotatably arranged, it can be understood that the free end of at least one supporting handle 334 is provided with an end shaft 336.

[0206] It can also be understood that the application does not limit the type of the resilient member 335, the resilient member 335 can also be a torsion spring.

[0207] It can also be understood that the embodiments of the application do not limit whether the fan assembly 300 is provided with the resilient member 335.

[0208] In some embodiments, referring to FIG. 20, the third connecting member 290 has a first abutting surface 290c, and the fourth connecting member 330 has a second abutting surface 330b. During the installation of the dust cup device 200, the first abutting surface 290c can apply a pushing force to the second abutting surface 330b, thereby pushing the fourth connecting member 330 to rotate relative to the fan body. Thus, during the installation of the dust cup device 200, the user can press the dust cup device 200 to achieve the transition of the fourth connecting member 330 from the locked state to the unlocked state, which is time-saving and labor-saving, and the user experience is better.

[0209] It should be noted that, in the above embodiments, referring to FIG. 20, during the locking of the fourth connecting member 330 to the third connecting member 290, the user does not directly apply a force to the fourth connecting member 330, but applies a force to the third connecting member 290 to indirectly push the fourth connecting member 330 to rotate relative to the fan body, thereby achieving the unlocking of the fourth connecting member 330. It can be understood that, in the above process, the user can also directly apply a force to the fourth connecting member 330 to make the fourth connecting member 330 rotate relative to the fan body, thereby achieving the unlocking of the fourth connecting member 330.

[0210] Therefore, the above two installation methods are within the protection scope of the present application.

[0211] It can be understood that the rear end surface of the dust cup device 200 and the front end surface of the fan assembly 300 are both inclined to form inclined surfaces. Specifically, the distance between the rear end surface of the dust cup device 200 and the barrel cover gradually decreases from top to bottom; the distance between the front end surface of the fan assembly 300 and the barrel cover gradually decreases from top to bottom. Thus, when the dust cup device 200 is installed on the fan assembly 300 from top to bottom, the rear end surface of the dust cup device 200 and the front end surface of the fan assembly 300 can be prevented from interfering with each other, and after installation, the installation gap between the two end surfaces can be minimized to improve the assembly precision.

[0212] The installation and disassembly processes of the dust cup device 200 will be described in detail below in combination with the above structure:

[0213] During installation, the second connecting member 220 is first inserted into the first connecting member 120 from the slot of the first connecting member 120, and the front section of the dust cup device 200 is preliminarily installed on the upper side of the air duct assembly 100.

[0214] Then, the rear section of the dust cup device 200 is rotated downward around the second connecting piece 220, so that the first abutting surface 290c abuts against the second abutting surface 330b. The downward pressure on the rear section of the dust cup device 200 is continuously applied, so that the third connecting piece 290 pushes the fourth connecting piece 330 to rotate. When the dust cup device 200 is installed in place, the fourth connecting piece 330 is automatically locked to the third connecting piece 290 under the action of the elastic member 335; or the user can manually rotate the fourth connecting piece 330 to open a certain angle between the fourth connecting piece 330 and the fan assembly 300, and then rotate the other end of the dust cup device 200 around the second connecting piece 220 downward to install the dust cup device 200 in place. The user releases the fourth connecting piece 330, so that the fourth connecting piece 330 resets and locks the third connecting piece 290.

[0215] When disassembling, the user can manually rotate the fourth connecting piece 330 to make the fourth connecting piece 330 in an unlocked state. Then, the dust cup device 200 is held and rotated upward around the second connecting piece 220 until the second connecting piece 220 is detached from the slot of the first connecting piece 120.

[0216] Exemplarily, referring to FIG. 3, along the axial direction (i.e., the first direction R1) of the dust cup device 200, the distance between the third connecting piece 290 and the second connecting piece 220 is greater than or equal to half the length of the dust cup 210. Thus, the constraint force between the air guide pipe assembly 100, the fan assembly 300 and the dust cup device 200 can be distributed on the opposite sides of the dust cup 210, the length of the free end of the dust cup device 200 is reduced, and the shaking of the dust cup device 200 during use is avoided.

[0217] In some embodiments, referring to FIG. 19, the fan assembly 300 includes a main housing 350, and the main housing 350 is provided with a mounting cavity 350a for mounting a motor 360 and an impeller. The mounting cavity 350a is in communication with the negative pressure chamber 200b of the dust cup device 200. One end of the main housing 350 is connected to the dust cup device 200.

[0218] It can be understood that, in some embodiments, the fourth connecting piece 330 is mounted on the main housing 350.

[0219] It should be noted that during the use of the cleaning device, static electricity can be generated by the friction between the rolling brush of the ground brush and the floor or carpet, and static electricity can also be generated by the rotating friction of dust in the connector pipe and the dust cup 210. If the static electricity is not released in time, the electric quantity will accumulate, and when it reaches a certain amount, it will be released by the tip of the discharge; when the user operates the vacuum cleaner, the tip of the discharge will make the user feel electric shock, which will affect the user experience; in order to eliminate these static electricity, the following methods are usually used, 1. Aluminum foil is used to paste the anti-static wire on the motor shell 360a to release static electricity. The aluminum foil is used for a long time, which can easily cause the anti-static wire to fall off; 2. The dust cup 210 is injection molded with anti-static material, but the cost is higher; 3. A structure is provided on the dust cup 210 for arranging the static plate 370, but the appearance is poor.

[0220] In some embodiments, referring to FIGS. 22, 23 and 28, the motor 360 has a motor shell 360a that can conduct electricity, for example, a motor shell 360a made of metal material, and a damping structure 360b for damping and noise reduction is arranged on the outside of the motor shell 360a. The static plate 370 is arranged between the motor shell 360a and the damping structure 360b, and the static plate 370 is clamped and fixed by the motor shell 360a and the damping structure 360b.

[0221] It can be understood that the static plate 370 is connected with a static electricity release plate 370a through the conductive structure 370d, and the static electricity release plate 370a can be fixed on the handle 500 or other positions that are easy to be contacted by the human body.

[0222] In some embodiments, referring to FIG. 1, the handle 500 is also provided with a support 510, and the connection position of the handle 500 and the fan assembly 300 is located at the front end of the axial direction of the motor 360, and the connection position of the support 510 and the fan assembly 300 is located at the rear end of the axial direction of the motor 360. By this arrangement, the support stability of the handle 500 and the support 510 to the cleaning device is improved. When the cleaning device is provided with the support 510, the static electricity release plate 370a can be fixed on the support 510.

[0223] It should be noted that when the static electricity release plate 370a is fixed on the handle 500 or the support 510, the static electricity release plate 370a is exposed through the hollow part of the handle 500 or the support 510.

[0224] It should also be noted that in some embodiments, the support 510 is located on the rear side of the dust cup device 200. By this arrangement, the support 510 can more stably support the dust cup device 200 and the fan assembly 300, and during use, the support 510 can also assist the handle 500 to play a certain holding role.

[0225] It should be noted that the support 510 is inclined towards the rear from top to bottom.

[0226] It can be understood that the conductive structure 370d can be a conductive wire, one end of the conductive wire is fixed on the static sheet 370 by welding, and the other end of the conductive wire is fixed on the static discharge sheet 370a by welding. In addition to the welding method, the electric connection of the conductive structure with the static sheet 370 and the static discharge sheet 370a can also be achieved by riveting, screwing and the like.

[0227] In this embodiment, after the static sheet 370 is installed, static electricity at each place will continue to be transmitted to the user's hand through the static sheet 370, the wire harness and the static discharge sheet 370a when the static electricity has not yet gathered, and can be transmitted to the ground through the human body, so that the concentrated discharge caused by the gathering of static electricity is avoided, and the user experience is affected.

[0228] It can be understood that in some embodiments, referring to FIG. 23, the static sheet 370 includes a base sheet 370b and an elastic sheet 370c, in the original state, the elastic sheet 370c can be raised from the base sheet 370b, and when subjected to external pressure, the elastic sheet 370c is pressed toward the base sheet 370b. Through this setting, the friction between the static sheet 370 and the motor shell 360a and the rubber ring damping structure 360b can be further improved, the static sheet 370 is not easy to fall off, and the conductive performance is improved.

[0229] It can be understood that the original state refers to the state presented when the static sheet 370 is not installed to the fan assembly 300. It can also be understood that when the static sheet 370 is installed to the fan assembly 300, due to long-time compression by the motor shell 360a and the damping structure 360b, the elastic recovery force of the elastic sheet 370c will be poor. After the static sheet 370 is taken out, the elastic sheet 370c may not be obviously raised from the base sheet 370b, but as a person skilled in the art can understand, the elastic sheet 370c can be raised from the base sheet 370b in the original state.

[0230] In some embodiments, referring to FIG. 23, the base sheet 370b and the elastic sheet 370c are an integral structure, for example, the elastic sheet 370c is stamped on one base sheet 370b.

[0231] In some embodiments, referring to FIGS. 19 and 28, the fan assembly 300 includes a containing shell 300a, the motor 360 and the impeller are located in the containing shell 300a, and the damping structure 360b is also located in the containing shell 300a.

[0232] It should be noted that the front side of the containing shell 300a is provided with an air inlet grille 300b, and the airflow filtered by the dust cup device 200 enters the containing shell 300a through the air inlet grille 300b. The rear side of the containing shell 300a is provided with an air outlet hole, and the airflow in the containing shell 300a can enter the mounting cavity 350a through the air outlet hole.

[0233] In some embodiments, referring to FIG. 19, along the first direction R1, the containing shell 300a is located on the side of the mounting bracket 390 away from the cover plate device 400 together with the motor 360, the air outlet shell 380 is located on the side of the mounting bracket 390 toward the cover plate device 400 and extends into a containing cavity 380b, and the air outlet shell 380 and the mounting bracket 390 form an air outlet chamber 390a therebetween. The air outlet shell 380 is formed with a first through hole 380a communicating the air outlet chamber 390a and the containing cavity 380b.

[0234] It can be understood that, referring to FIG. 19, the mounting bracket 390 is provided with a communication hole to communicate the mounting cavity 350a and the air outlet chamber 390a.

[0235] In some embodiments, referring to FIG. 19, the air outlet shell 380 is provided with the first through hole 380a communicating with the outside to discharge the airflow to the outside.

[0236] In some embodiments, referring to FIG. 25, the containing cavity 380b is used to contain a filter 800, and the main shell 350 is provided with an air outlet hole 350b. It should be noted that the filter 800 refers to a structure capable of adsorbing fine dust in the airflow.

[0237] In some embodiments, the filter 800 is a Hepa filter 250 or a sponge.

[0238] It can be understood that the embodiments of the present application do not limit the type of filter 800.

[0239] It can be understood that the filter 800 is detachably arranged in the containing cavity 380b, so that the user can conveniently replace the filter 800.

[0240] It can be understood that the filter 800 can be arranged to have a fragrance function, in addition to filtering the airflow, different fragrance flavors can also be selected according to the personal preferences of the user.

[0241] It should be noted that the fragrance function can be specially arranged as a module placed in the containing cavity 380b and arranged separately from the filter 800.

[0242] It can be understood that the filter 800 can be arranged around the air outlet housing 380, or can be arranged only at the first through hole 380a and / or the air outlet hole 350b, to perform a second filtration on the air flow discharged from the cleaning device, and further improve the dust removal capacity.

[0243] In the scheme of the embodiment of the present application, the filter 800 is annular, which can be better arranged around the air outlet housing 380, so that the air flow flowing from the air outlet chamber 390a to the outside all passes through the filter 800, and the filtering effect is improved.

[0244] It can be understood that the embodiment of the present application does not limit the shape of the filter 800.

[0245] It can be understood that the main housing 350 of the embodiment of the present application can be arranged as an integrated structure or a split structure. When the main housing 350 is arranged as a split structure, the housing containing the cavity 380b can be formed separately by a part of the main housing 350, thereby facilitating the processing and manufacturing.

[0246] In some embodiments, referring to FIGS. 19, 25-27, the fan assembly 300 is provided with a cover plate device 400, which is movably mounted on the main housing 350 to cover the opening 380c of the containing cavity 380b.

[0247] In some embodiments, referring to FIGS. 25 and 27, the cover plate device 400 has a first state and a second state. When the cover plate device 400 is in the first state, the cover plate device 400 closes the opening 380c, and when the cover plate device 400 is in the second state, the cover plate device 400 opens the opening 380c. The filter 800 can be moved into or out of the containing cavity 380b from the opening 380c.

[0248] In some embodiments, referring to FIGS. 19, 28 and 29, a display assembly 900 is mounted on the cover plate device 400, and the display assembly 900 is located on the side of the cover plate device 400 away from the containing cavity 380b. It should be noted that the display assembly 900 refers to a structure capable of displaying the current state of the cleaning device.

[0249] For example, the current state of the cleaning device includes the remaining power of the cleaning device, the cleaning mode, the on-off state and the like. In some embodiments, the display assembly 900 can display multiple current states of the cleaning device, and the user can more intuitively understand the current state of the cleaning device.

[0250] In the scheme of the embodiment of the present application, the display assembly 900 is installed on the cover device 400, and the display assembly 900 is located on the side of the cover device 400 away from the accommodating cavity 380b. In use, the user can clearly see the current state of the cleaning device. In the prior art, when the display assembly 900 is not on the cover device 400, for example, on the side of the main shell 350, the user needs to turn sideways or even pause the work to check each time, which is inconvenient for use.

[0251] It can be understood that, in order to improve the filtering effect, the filter element 800 fills the entire accommodating cavity 380b. When the display assembly 900 is arranged on the side of the main shell 350, the circumferential space of the accommodating cavity 380b is occupied, thereby reducing the arrangement space of the filter element 800, and thus affecting the filtering effect.

[0252] In some embodiments, referring to FIGS. 27-29, the display assembly 900 is located above the handle 500. The position of the display assembly 900 is more in line with the use habits of the user. The user can more conveniently observe the display assembly 900 in the process of holding the handle 500, the user's arm is less shielded from the line of sight, and the user's experience is better.

[0253] In some embodiments, the display assembly 900 further has a control button.

[0254] It can be understood that the control button includes a physical button or a touch type. Thus arranged, the user can conveniently operate and control the cleaning device.

[0255] In some embodiments, the display assembly 900 is an electronic display screen.

[0256] Exemplarily, the electronic display screen is a color display screen.

[0257] Exemplarily, the electronic display screen is a touch display screen. The user can switch the cleaning function of the cleaning device by touching the electronic display screen.

[0258] It can be understood that the embodiment of the present application does not limit the type of display screen. Exemplarily, the display screen includes a plurality of display lights, and the plurality of display lights are arranged at intervals from each other, and the color of each display light is different.

[0259] Exemplarily, along the axial projection of the accommodating cavity 380b, the projection area of the display assembly 900 is approximately circular.

[0260] In the scheme of the embodiment of the present application, the display assembly 900 can more fully utilize the surface of the cover device 400 along the axial direction of the accommodating cavity 380b away from the accommodating cavity 380b, the display screen can be as large as possible, and thus the user can more clearly observe the display screen.

[0261] In some embodiments, the projection area of the display assembly 900 overlaps with the projection area of the cover device 400 along the axial projection of the cover device 400. It can be understood that the projection area of the display assembly 900 overlaps with the projection area of the cover device 400 in the embodiments of the present application includes the case that the projection area of the display assembly 900 is smaller than the projection area of the cover 410 body and is located in the projection area of the cover 410 body.

[0262] In some embodiments, referring to FIG. 25, the cover device 400 is rotatably installed on the main housing 350.

[0263] It can be understood that rotating the cover device 400 by applying an external force can switch the cover device 400 between the first state and the second state, facilitate the replacement of the filter 800, and provide a better experience for the user.

[0264] It can be understood that the embodiments of the present application are not limited to the case that the cover device 400 is rotatably installed on the main housing 350. For example, the cover device 400 and the main housing 350 are configured to have a sliding groove and a sliding block that cooperate with each other, the sliding block is moved to enable the cover device 400 to move relative to the main housing 350, and when the cover device 400 moves away from the main housing 350, the cover device 400 is switched from the first state to the second state.

[0265] In some embodiments, referring to FIG. 19, FIG. 24 and FIG. 25, the cover device 400 includes a cover 410, a rotating shaft 420 and a connecting piece 430 connecting the cover 410 and the rotating shaft 420, the cover 410 can be opened by rotating the rotating shaft 420, and the display assembly 900 is arranged on the cover 410.

[0266] It can be understood that the rotating shaft 420 can be arranged on the fan assembly 300 or the handle 500.

[0267] In some embodiments, referring to FIG. 24, the connecting piece 430 has a wire arranging cavity 430a for accommodating the power supply wire 610 to electrically connect the power supply wire 610 with the display assembly 900. On the one hand, the connecting piece 430 provides protection for the wire, which is safe and reliable. On the other hand, the wire is not exposed, so that the cleaning device is simple and beautiful.

[0268] For example, the rotating shaft 420 is connected to the end of the connecting piece 430 away from the cover 410.

[0269] In the scheme of the embodiments of the present application, the rotating shaft 420 is as far away from the cover 410 as possible, which can increase the rotation range of the cover 410, so that the filter 800 is more convenient to move into or out of the accommodating cavity 380b, and the interference of the cover 410 on the filter 800 is reduced.

[0270] For example, referring to FIGS. 24 and 25, the side wall of the accommodating cavity 380b is provided with a cover structure 380d, and the cover structure 380d is provided with a third opening 380e for the connecting member 430 to pass through. The connecting member 430 includes an arc-shaped segment 430b and a straight segment 430c connected to each other, the arc-shaped segment 430b passes through the third opening 380e, and the rotating shaft 420 is connected to one end of the straight segment 430c away from the arc-shaped segment 430b. The above arrangement is conducive to reducing the interference range of the connecting member 430 during the rotation of the cover plate device 400, and the size of the third opening 380e is minimized to improve the sealing performance of the accommodating cavity 380b.

[0271] It can be understood that when the side wall of the accommodating cavity 380b is provided with the cover structure 380d, the annular filter 800 is provided with a cover structure 380d avoiding gap.

[0272] For example, the rotating central axis of the rotating shaft 420 is arranged to be perpendicular to the axis of the main housing 350 of the fan assembly 300, for example, perpendicular to each other. It can be understood that the cover plate 410 can be flipped up or down.

[0273] For example, referring to FIG. 19, the rotating central axis of the rotating shaft 420 is arranged along a third direction R3, and the third direction R3 is perpendicular to the first direction R1 and the second direction R2.

[0274] For example, the rotating central axis of the rotating shaft 420 can be arranged along the first direction R1, and the cover plate device 400 can be rotated to open the opening 380c to the side, i.e., the cover plate device 400 rotates around the first direction.

[0275] It can be understood that according to actual needs, the rotating central axis of the rotating shaft 420 can be arranged along other directions, for example, arranged along the second direction R2 on one side of the main housing 350, and the cover plate device 400 can be flipped open from the left or right side.

[0276] In some embodiments, referring to FIGS. 25 and 26, the cover plate device 400 further includes a first fixing member 440 movably arranged on the cover plate 410, and the main housing 350 of the fan assembly 300 is provided with a second fixing member 310. When the cover plate device 400 is in the first state, the first fixing member 440 is used to be clamped with the second fixing member 310 to lock the cover plate device 400, so that the cover plate device 400 can be more stably maintained in the first state.

[0277] In some embodiments, referring to FIG. 25, the first fixing member 440 is configured as a locking ring, the display assembly 900 is fixedly connected to the cover plate 410, the diameter of the display assembly 900 is smaller than the diameter of the cover plate 410, the locking ring is arranged around the display assembly 900 and can rotate by a predetermined angle around the display assembly 900, and the locking ring is provided with a clamping protrusion 442a; the second fixing member 310 is configured as a clamping groove on the main shell 350, and the locking and unlocking of the cover plate device 400 and the main shell 350 are realized by the rotation of the locking ring and the cooperation of the clamping protrusion 442a and the clamping groove.

[0278] It can be understood that the locking ring can rotate around the display assembly 900, but is still limited on the cover plate 410 to avoid the automatic falling of the locking ring from the cover plate 410.

[0279] In some embodiments, referring to FIG. 25, the locking ring comprises an inner ring 442 and an outer ring 441, the outer ring 441 is used for the user to hold and operate, the clamping protrusion 442a is arranged on the outer side wall of the inner ring 442, and the clamping groove is arranged on the inner side wall of the main shell 350.

[0280] It can be understood that the clamping protrusion 442a can be arranged in various shapes, such as the strip shape shown in FIG. 25, and can also be arranged in a cylindrical shape, etc.

[0281] In some embodiments, referring to FIG. 25, in order to avoid the interference with the connecting member 430 when the locking ring rotates, the locking ring is provided with an avoiding opening 440a, and it can be understood that in order to avoid the interference with the connecting member 430 when the locking ring rotates, the width of the avoiding opening 440a is greater than the width of the connecting member 430.

[0282] It can be understood that the embodiments of the present application do not limit whether the first fixing member 440 surrounds the circumference of the cover plate 410 and can rotate relative to the cover plate 410.

[0283] In some embodiments, the side of the cover plate 410 facing the accommodating cavity 380b is provided with a heat dissipation hole (not shown in the figure), which can be used to improve the heat dissipation effect of the display assembly 900.

[0284] In some embodiments, referring to FIGS. 1 and 27-29, the cleaning device has a handle 500 connected to the lower side of the fan assembly 300 and the cover plate device 400.

[0285] Exemplarily, referring to FIG. 27, in order to facilitate the user to hold the handle 500 when using, the handle 500 is arranged in an arc shape.

[0286] Referring to FIG. 29, in some embodiments, the center line P2 of the handle 500 is curved in an arc shape, and in some embodiments, the center line P2 of the handle 500 is a circular arc line, the center of the circle of the circular arc line is located on the front side of the handle 500, and the circular arc line does not intersect with the axis O of the motor 360 along the extension line P3 of the circle, that is, the circle of the circular arc line is away from the axis of the motor 360, so as to improve the holding effect of the cleaning device. The center line of the handle 500 is substantially a circular arc line, and the center line of the handle 500 is substantially a circular arc line,

[0287] It should be noted that the axis O of the main housing 350 and the axis of the dust cup device 200 can be arranged to coincide or not to coincide.

[0288] In some embodiments, referring to FIGS. 28 and 29, the handle 500 is provided with a first side 500a and a second side 500b facing away from each other, and the first side 500a is located on the rear side of the handle 500 and is configured as a curved surface.

[0289] In some examples, the first side 500a and the second side 500b can both be arranged as curved surfaces.

[0290] It can be understood that the second side 500b can be provided with a holding portion suitable for finger holding, for example, at least one groove is formed, so as to facilitate finger holding.

[0291] In some embodiments, referring to FIG. 29, the center axis of the rotating shaft 420 of the cover plate device 400 is located inside the handle 500.

[0292] In some embodiments, referring to FIGS. 28 and 29, the handle 500 is internally provided with a mounting position for cooperating with the mounting of the rotating shaft 420. It can be understood that, in order to adapt to the shape of the connecting piece 430 and the rotating track, the upper end of the handle 500 is provided with a containing space 500d for the arc-shaped section 430b and the straight line section 430c. When the cover plate device 400 is in the first state, the straight line section 430c and the arc-shaped section 430b are both located in the containing space 500d, and the straight line section 430c is in a substantially parallel state with the bottom wall of the containing space 500d. When the cover plate device 400 is in the second state, the arc-shaped section 430b is at least partially moved out of the containing space 500d, and the straight line section 430c is in a substantially perpendicular state with the bottom wall of the containing space 500d.

[0293] In some embodiments, referring to FIGS. 28 and 29, the handle 500 is internally provided with a mounting position for installing the electrostatic discharge sheet 370a, for example, at the inner side of the second side 500b, and the second side 500b is provided with a gap for exposing the electrostatic discharge sheet 370a, so that when a user holds the handle 500, the electrostatic discharge sheet 370a can be contacted.

[0294] It can be understood that the electrostatic discharge sheet 370a can also be exposed from the first side 500a or other parts of the handle 500, as long as it can be frequently contacted by the human body.

[0295] In some embodiments, referring to FIG. 28 and FIG. 29, one end of the support 510 is connected to the power supply assembly 600, and the other end is connected to the fan assembly 300. Since the handle 500 and the support 510 are jointly supported between the power supply assembly 600 and the fan assembly 300, the overall structural strength of the cleaning device can be improved. It can be understood that the power supply assembly 600 can provide power to the fan assembly 300, the display assembly 900, etc.

[0296] In some embodiments, referring to FIG. 28 and FIG. 29, the power supply assembly 600 includes a battery compartment 620, a power supply battery 630, and a battery management system (not shown in the figure), the power supply battery 630 and the battery management system are located in the battery compartment 620, and the battery management system is electrically connected to the power supply battery 630 and the power supply wire 610, respectively. Exemplarily, the battery management system is an electronic control board, and the battery can be a cylindrical battery or a winding cell.

[0297] It can be understood that the power supply battery 630 can be provided in multiple, and the multiple power supply batteries 630 are arranged side by side along the arrangement direction of the power supply battery 630, thereby better utilizing the volume of the battery compartment 620.

[0298] Exemplarily, the multiple power supply batteries 630 are arranged side by side along the first direction, increasing the paving area of the battery compartment 620, and facilitating the placement of the cleaning device with the power supply assembly 600 as the base, thereby improving the stability of the placement.

[0299] In some embodiments, referring to FIG. 28 and FIG. 29, the motor 360 is located on the front side of the center of gravity Q of the power supply battery 630. During the use of the cleaning device, the whole needs to be tilted downward, and the arrangement can make the user more labor-saving to complete the action.

[0300] In some embodiments, referring to FIG. 28 and FIG. 29, the center of gravity Q of the power supply battery 630 is located on the front side of the handle 500 holding part, and the arrangement can make the user more labor-saving when cleaning with the cleaning device.

[0301] In some embodiments, in order to facilitate charging of the power supply assembly 600, the charging connector 640 is located on the lower side of the front end of the air duct assembly 100, the lower side of the air duct assembly 100 is provided with a housing structure 140, and the charging wire electrically connected to the charging connector 640 is wired in the housing structure 140. The right end of the housing structure 140 is connected to the support 510, and the charging wire continues to be wired inside the support 510 to reach the power supply assembly 600.

[0302] It can be understood that when the support 510 is not arranged, the cover structure 140 can be directly connected to the handle 500, and then the charging wire continues to run inside the handle 500 to the power supply assembly 600.

[0303] In some embodiments, referring to FIG. 29, the arrow P1 shows the flow direction of the air flow, wherein the handle 500 is connected to the outer side wall of the main shell 350, the first air duct 500c is arranged in the handle 500, the fourth opening 350c is arranged on the lower side wall of the accommodating cavity 380b, and the fourth opening 350c is in communication with the accommodating cavity 380b. At the same time, the battery compartment 620 is in communication with the first air duct 500c, so that the air flow discharged from the fourth opening 350c can reach the battery compartment 620 along the first air duct 500c, thereby improving the heat dissipation effect of the power supply battery 630.

[0304] In some embodiments, referring to FIG. 28 and FIG. 29, the battery compartment 620 is provided with a first opening 620a and a second opening 620b, the first opening 620a is in communication with the first air duct 500c and the inner cavity of the battery compartment 620 respectively, and the second opening 620b is in communication with the outside and the inner cavity of the battery compartment 620 respectively.

[0305] In the scheme of the embodiments of the present application, the first opening 620a can collect the air flow to a certain extent, so that the flow rate of the air flow is relatively fast, and the heat dissipation efficiency of the power supply battery 630 is relatively high. It can be understood that the first opening 620a is arranged at one end of the battery compartment 620, and the second opening 620b is arranged at the other end of the battery compartment 620, so as to further improve the convection speed. It should be noted that the embodiments of the present application are not limited to that the first opening 620a is arranged at one end of the battery compartment 620 and the second opening 620b is arranged at the other end of the battery compartment 620. For example, the second opening 620b and / or the first opening 620a are arranged between the opposite ends of the battery compartment 620.

[0306] In the related art, the heat dissipation of the battery pack is achieved by blowing the air outlet of the fan to the surface of the battery pack, thereby taking away the heat generated by the battery pack during operation. Since the air outlet of the fan is sucked from the outside into the inside of the dust collector, a large amount of dust and sundries is carried, the dust cup device 200 has a filter screen, the air and the dust and sundries are preliminarily separated through the cyclone separator, then the separated air is filtered through the filter screen to filter out the large particles of dust in the air, and the air flow passing through the filter screen is introduced into the battery compartment to dissipate heat for the power supply battery. However, a part of fine dust is still carried in the air flow filtered through the filter screen, and the air flow carrying the fine dust directly blows to the surface of the battery management system board, which is easy to cause pollution and cause short circuit of the battery management system. Furthermore, the part of fine dust also leaks from the opening of the battery compartment in communication with the outside, causing secondary pollution.

[0307] In some embodiments, to solve the above problems, referring to FIG. 25 and FIG. 26, the filter 800 is arranged in the accommodating cavity 380b. The filter 800 can be arranged around the air outlet shell 380, or arranged at the fourth opening 350c and / or the air outlet hole 350b, to further filter the airflow entering the first air channel 500c, further improve the dust removal capacity, and minimize the fine dust reaching the battery compartment 620, thereby reducing the influence of fine dust on the power supply battery 630 and the battery management system.

[0308] For example, as described above, the cleaning device further comprises the motor front filter 291 arranged between the dust cup device 200 and the fan assembly 300, for filtering the airflow flowing from the dust cup device 200 to the fan assembly 300, thereby performing a front filtration. By arranging the filter 800 in the accommodating cavity 380b, the airflow entering the first air channel 500c is filtered twice, greatly improving the filtration effect.

[0309] In some embodiments, the first air channel 500c can be further provided with a filtering structure.

[0310] In some embodiments, referring to FIG. 24 to FIG. 26, the lower side wall of the accommodating cavity 380b is provided with a cover structure 380d, and the cover structure 380d is provided with a second through hole 380f. At this time, the fourth opening 350c is located in the area of the lower side wall of the accommodating cavity 380b covered by the cover structure 380d, and the fourth opening 350c provides a space for the connecting piece 430 to pass through. Specifically, the fourth opening 350c provides a space for the arc-shaped section 430b.

[0311] It can be understood that, for the above-mentioned embodiments with the second through hole 380f, the filter 800 can be arranged at the second through hole 380f.

[0312] It can also be understood that, for the above-mentioned embodiments with the second through hole 380f, the airflow filtered by the filter 800 passes through the second through hole 380f, the fourth opening 350c, and then enters the first air channel 500c.

[0313] In some embodiments, referring to FIG. 28 and FIG. 29, the upper end of the handle 500 is provided with an accommodation space 500d for the arc-shaped section 430b and the straight section 430c. The accommodation space 500d is part of the first air channel 500c, and the accommodation space 500d is in direct communication with the fourth opening 350c. The lower side wall of the accommodation space 500d is provided with a communication hole 500e.

[0314] In some embodiments, a second air passage can be arranged inside the support 510. Specifically, the upper end of the handle 500 is provided with an accommodation space 500d, which is arranged at the arc-shaped section 430b and the straight section 430c and directly communicates with the fourth opening 350c. A communication hole is arranged on the front side wall of the accommodation space 500d and communicates with the second air passage inside the support 510, so that the air flow reaches the battery compartment 620 through the second air passage. It can be understood that the first air passage 500c and the second air passage can be arranged in the handle 500 and the support 510 at the same time, so as to provide multiple channels to reach the battery compartment 620. It can also be understood that when the second air passage is arranged, the first air passage 500c inside the handle 500 can also be blocked.

[0315] In some embodiments, the first air passage 500c can be replaced by the air pipe 520, that is, the air inlet end of the air pipe 520 is directly connected to the fourth opening 350c, and the air pipe 520 is arranged inside the handle 500 and / or the support 510 and directly reaches the battery compartment 620.

[0316] It can be understood that the air inlet end of the air pipe 520 can not be directly connected to the fourth opening 350c, but can be connected to the side wall of the accommodation space 500d at the upper end of the handle 500. By this arrangement, the air pipe 520 can be directly assembled with the internal structure of the handle 500, which facilitates the modular production and assembly of the handle 500.

[0317] It should be noted that a filtering structure can be further arranged in the air pipe 520 to improve the filtering effect.

[0318] In some embodiments, a third air passage can be arranged inside the support 510. The air outlet end of the third air passage can be connected to the front of the main shell 350, and the air inlet end can be connected to the battery compartment 620, so as to use the vacuum suction to suck the air outside into the battery compartment 620 and provide cooling air flow for the power supply assembly 600, which greatly improves the cooling effect of the power supply battery 630.

[0319] It can be understood that the third air passage can be the air pipe 520, as shown in FIG. 28.

[0320] Specifically, referring to FIG. 28, the side of the main shell 350, where the dust cup device 200 is arranged, is provided with an air inlet space, which forms a negative pressure area. The air outlet end of the air pipe 520 communicates with the air inlet space. The suction force of the air inlet space is stronger than the pressure of the containing cavity 380b, so the cooling effect of the power supply battery 630 is better.

[0321] In some embodiments, the wind wheel is provided with an air inlet grille on one side of the dust cup device 200, and the front side of the air inlet grille forms the air inlet space. The airflow filtered by the motor front filter 291 enters the installation cavity 350a through the air inlet grille. The air outlet end of the air pipe 520 is in communication with the air inlet space.

[0322] It can be understood that the main shell 350 is provided with a through hole through which the air pipe 520 passes.

[0323] In some embodiments, a sealing ring is arranged at the through hole to seal the gap through which the air pipe 520 passes.

[0324] In some embodiments, referring to FIG. 28, the support 510 is internally formed with a channel for accommodating the air pipe 520. The channel is provided with a fixing member for limiting the air pipe 520, so that the air pipe 520 is stably arranged in the channel.

[0325] In some embodiments, referring to FIG. 28, the handle 500 is provided with a wire for delivering power from the power supply assembly 600 to the display assembly 900, the fan assembly 300, etc. The wire is connected to the power supply battery 630 through an opening in the battery compartment 620, and the opening is located at the connection part of the battery compartment 620 and the handle 500. The first opening 620a is the above-mentioned opening, thereby avoiding opening the first opening 620a.

[0326] In some embodiments, referring to FIG. 28, the first opening 620a is located at the connection part of the battery compartment 620 and the handle 500. The lower ends of the support 510 and the handle 500 are connected by a connecting shell, and a wire space is formed between the connecting shell and the upper side wall of the battery compartment 620. The air pipe 520 is bent at the connection part of the support 510 and the battery compartment 620, then extends along the wire space to the first opening 602a, and is connected to the first opening 602a.

[0327] The flow direction of the airflow entering the cleaning device is described below. It can be understood that, in the use process, the cleaning device is inclined downward as a whole:

[0328] Exemplarily, during use of the cleaning device, the fan assembly 300 works to generate negative pressure, air flows into the air duct assembly 100 from the air inlet, and flows to the dust cup 210 along the air inlet channel 110a of the air duct assembly 100. The air flow first enters the first dust collection chamber 210c, and is subjected to primary cyclone separation by the first separator 241. Large particles of dust fall to the bottom of the first dust collection chamber 210c. Then, the unseparated fine dust is subjected to secondary cyclone separation by the second separator 242. Specifically, the air flow spirally descends in the channel 242b of the second separator 242, and the dust falls to the bottom of the second dust collection chamber 242c. After the air flow is subjected to the second separation, it is subjected to the first filtration by the motor front filter 291, and then flows to the installation cavity 350a through the air inlet grille. Specifically, the air flow first flows into the containing shell 300a through the air inlet grille, and then flows out of the rear side of the containing shell 300a into the installation cavity 350a. The air flow flows from the installation cavity 350a into the containing cavity 380b through the first through hole 380a of the air outlet shell 380, is subjected to the second filtration by the filter 800, and then part of the air flow flows to the outside through the air outlet, and part of the air flow flows to the battery compartment 620 along the air duct formed by the handle 500 and / or the support 510. Specifically, the air flow enters the inner cavity of the battery compartment 620 through the first opening 620a of the battery compartment 620, and then flows to the outside through the second opening 620b.

[0329] It should be further noted that, for the cleaning device of the present application, it can specifically be a pistol-type cleaning device, and during non-use or during pause of use, the cleaning device is often placed horizontally with the power supply assembly 600 as the base. In the existing cleaning device, the shaft center line of the motor is parallel to the placement plane V, and at this time, the cleaning device is prone to forward tilting, especially when the dust and sundries in the dust cup 210 are relatively large. To solve this problem, in the prior art, an additional structure is often added to the tail of the power supply assembly 600 to ensure that the cleaner is placed horizontally, but this results in an increase in cost, and unnecessary increase in the size and weight of the cleaning device.

[0330] Therefore, in some embodiments of the present application, as shown in FIG. 29, the shaft center line O of the motor 360 has an angle β with the placement plane V, and β>0°. In this way, the center of gravity of the cleaner is moved backward, which facilitates horizontal placement.

[0331] It can be understood that β can be 0.5°, 1°, 2°, 5°, etc.

[0332] At the same time, in order to realize the "180 lying" cleaning, under the premise of ensuring that the cleaning equipment is placed horizontally and does not lean forward, the inclined angle β of the axis of the fan assembly 300 can be further increased, the length of the power supply assembly 600 and the handle 500 protruding backward to the cover plate device 400 is compressed, that is, the rear space of the cover plate device 400 is compressed. In some embodiments, at this time, β satisfies: 5°≥β≥1°, for example, 1°, 2°, 3°, 5°, etc.

[0333] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of protection.

Claims

1. A cleaning device, comprising: a fan assembly comprising a main housing and a motor, the motor being located in the main housing; a handle connected to the lower side of the fan assembly; and a support connected to the lower side of the fan assembly and spaced apart from the handle; and wherein the connection part of the handle and the fan assembly is located at the front end of the axial direction of the motor, and the connection part of the support and the fan assembly is located at the rear end of the axial direction of the motor. The power supply assembly is connected to the lower end of the handle and the support, the power supply assembly comprises a battery compartment and a power supply battery, the power supply battery is located in the battery compartment, and the bottom wall of the battery compartment constitutes a placement surface for placing the cleaning device.

2. The cleaning apparatus of claim 1, further comprising a power supply assembly, wherein, When the plane where the placement surface is located is a horizontal plane in the front-rear direction, the motor is inclined downward from front to rear, and the axial line of the motor forms an angle β with the horizontal plane, and β satisfies: β > 0°.

3. The cleaning apparatus of claim 2, wherein, The angle β satisfies: 5°≥β≥1°.

4. The cleaning apparatus of claim 3, wherein, The power supply battery is provided in plurality, and the plurality of power supply batteries are arranged side by side in the front-rear direction.

5. The cleaning apparatus of claim 3 or 4, wherein, The motor is located on the front side of the center of gravity of the power supply battery.

6. The cleaning apparatus of any one of claims 2 to 5, wherein, The handle is provided with a second side surface facing the support, the second side surface is provided with a holding part suitable for holding by fingers, and the center of gravity of the power supply battery is located on the front side of the holding part.

7. The cleaning apparatus of any one of claims 2 to 6, wherein, The handle is arc-shaped, the center line of the handle is substantially a circular arc line, the center of the circle where the circular arc line is located is located on the front side of the handle, and the circle where the circular arc line is located is separated from the axial line of the motor of the fan assembly.

8. The cleaning apparatus of claim 6 or 7, wherein, The dust cup device is connected to the front end of the fan assembly, and the support is located on the rear side of the dust cup device.

9. The cleaning apparatus of any one of claims 1 to 8, further comprising a dust cup arrangement, wherein, The support is inclined toward the rear from top to bottom.

10. The cleaning apparatus of any one of claims 1 to 9, wherein, ​

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