Cleaning apparatus

Abstract

The application relates to the technical field of cleaning products, in particular to a cleaning device. The application provides a cleaning device which comprises a dust cup assembly, a spiral flow guide and a first filter assembly; the spiral flow guide and the first filter assembly are arranged in the dust cup assembly; the spiral flow guide and the first filter assembly are arranged along a first direction, and the first direction is the length direction of the cleaning device; the first filter assembly comprises a lift pipe and a first filter unit, and the first filter unit is arranged around the outer side of the lift pipe; air flow flowing through the spiral flow guide spirally rises and enters the first filter assembly, the spiral rising of the air flow separates dust particles from the air flow; and the first filter unit is configured to adsorb the dust particles. The cleaning device of the application fully utilizes the axial space, forms a rod-shaped cleaning machine body, the diameter size of the machine body structure is smaller, and the cleaning device is more portable and flexible, and is easy and labor-saving.

Description

Technical Field

[0001] This application relates to the field of cleaning product technology, and more particularly to a cleaning device. Background Technology

[0002] Vacuum cleaners, floor scrubbers, and robotic vacuum cleaners are widely used for cleaning home environments. These cleaning devices can suck up dust from surfaces to be cleaned and separate the dust from the air, thus collecting the dust.

[0003] In related technologies, cleaning equipment is usually equipped with a floor brush and a dust cup. The floor brush, as a suction port, can suck up dust from the surface to be cleaned. The airflow carrying dust enters the dust cup radially and rotates through the cyclone separation structure, thereby generating centrifugal force to separate dust and air.

[0004] However, the current dust cups have a large diameter, which makes the cleaning equipment large in size, inflexible in operation, and laborious. Utility Model Content

[0005] This application provides a cleaning device to solve the technical problem that the current dust cup diameter is large, resulting in a large overall size of the cleaning device, inflexible operation, and labor-intensive operation.

[0006] This application provides a cleaning device, which includes a dust cup assembly, a spiral guide, and a first filter assembly; the spiral guide and the first filter assembly are disposed within the dust cup assembly; the spiral guide and the first filter assembly are arranged along a first direction, which is the length direction of the cleaning device.

[0007] The first filter assembly includes an air riser and a first filter unit, which is arranged around the outside of the air riser; the airflow flowing through the spiral guide spirals upward and enters the first filter assembly, and the spiral upward airflow separates dust particles from the airflow; the first filter unit is configured to adsorb dust particles.

[0008] The spiral guide and the first filter assembly of the cleaning equipment provided in this application are arranged at intervals along the first direction. The airflow passes through the spiral guide along the first direction to form a spiral rising airflow and enters the first filter assembly. The riser creates negative pressure and can pass through the air passage. The filter unit arranged around it can adsorb the dust particles thrown to the inner wall of the dust cup by the spiral airflow. In this way, the axial space of the cleaning equipment can be fully utilized to form a rod-shaped main body. The radial diameter of the main body structure is smaller and finer, making the cleaning equipment lighter, more flexible and easier to use.

[0009] As an optional implementation, the dust cup assembly has a receiving cavity that extends along a first direction; the receiving cavity has an air inlet and an air outlet at its two ends along the first direction, and the airflow entering the receiving cavity flows from the air inlet to the air outlet; the first filter assembly is located downstream of the airflow direction in the receiving cavity, and the spiral guide is located upstream of the airflow direction relative to the first filter assembly.

[0010] With this configuration, the airflow can first pass through the spiral guide cyclone and then be filtered through the first filter component, which helps to improve the filtration efficiency.

[0011] As an alternative implementation, the first filter assembly and the spiral guide have a gap along the first direction.

[0012] With this configuration, there is a gap between the spiral guide and the first filter component, and the spiral airflow has a certain spiral upward space to ensure that the dust and gas are fully separated.

[0013] As an alternative implementation, the end of the riser pipe facing the spiral guide has an opening, and there is a gap between the opening and the air outlet side of the spiral guide.

[0014] This configuration, through the distance between the opening and the outlet side of the spiral guide, provides a stable development space for the airflow rotation. The opening can isolate the separated particles from the clean airflow that is about to enter the riser pipe, thereby improving the dust removal effect of the entire device.

[0015] As an alternative implementation, the outer contour of the spiral guide projected along the first direction covers the opening.

[0016] With this configuration, dust is concentrated on the inner wall of the containment cavity under the action of centrifugal force, and will not enter the riser pipe through the opening, thus improving the dust separation efficiency.

[0017] As an optional implementation, the riser pipe and the spiral guide are coaxially arranged; the axial directions of the riser pipe and the spiral guide are parallel to the first direction.

[0018] This configuration, with the riser pipe and spiral guide coaxially aligned, allows the ejected dust particles to rise along the inner wall of the dust cup, reducing the direct entry of dust particles into the riser pipe.

[0019] As an optional implementation, the first filter unit is coaxially arranged with the riser pipe, the inner wall of the first filter unit is engaged with the outer wall of the riser pipe, and the outer wall of the first filter unit is engaged with the inner wall of the dust cup assembly.

[0020] With this configuration, the first filter unit can filter the airflow carrying dust, preventing the airflow from passing through the gap between the inner wall of the first filter unit and the outer wall of the riser pipe, or the gap between the outer wall of the first filter unit and the inner wall of the dust cup assembly.

[0021] As an optional implementation, the riser includes a mounting bracket and a ventilation duct body; the ventilation duct body is axially connected at both ends; the mounting bracket is connected to the air outlet end of the ventilation duct body and is abutted against the inner wall of the dust cup assembly; a first filter unit is arranged around the periphery of the ventilation duct body, and the first filter unit is positioned on the side of the mounting bracket facing the spiral guide.

[0022] This configuration provides support for the first filter unit through the ventilation duct and mounting bracket, thus improving structural stability.

[0023] As an alternative implementation, the first filtration unit includes filter paper attached to the side of the mounting bracket facing the spiral guide; the mounting bracket has ventilation holes, and the filter paper covers the ventilation holes.

[0024] With this setup, dust in the airflow can be filtered out by the filter paper, and clean airflow can flow through the ventilation holes, achieving dust-air separation.

[0025] As an optional implementation, the first filtration unit includes a filter element that fills the space between the outer wall of the ventilation duct and the inner wall of the dust cup assembly; along a first direction, the thickness of the filter element is less than or equal to the length of the ventilation duct.

[0026] With this setup, dust in the airflow can be filtered out by the filter element, and clean airflow can flow through the ventilation holes, achieving dust-air separation.

[0027] As an optional implementation, the end face of the mounting bracket facing the spiral guide surrounds the ventilation duct body, and the end face of the mounting bracket facing the spiral guide is provided with a plurality of first ventilation holes, the upper end face of the filter element covers the first ventilation holes; and / or, the side wall of the ventilation duct body is provided with a plurality of second ventilation holes connecting its inner and outer sides, the inner side wall of the filter element covers the second ventilation holes.

[0028] With this configuration, the airflow carrying dust can continue to flow to the fan through the first ventilation hole and / or the second ventilation hole after passing through the filter element, thus achieving dust-air separation.

[0029] As an optional implementation, the first filtration unit includes a dust collection box, which includes a box body and an adsorbent material disposed within the box body. The shape of the box body matches the spatial shape between the outer wall of the ventilation duct and the inner wall of the dust cup assembly. The end face of the box body facing the spiral guide is provided with a dust inlet.

[0030] With this setup, the adsorption material in the storage box can adsorb dust in the airflow, achieving dust-air separation.

[0031] As an optional implementation, the cleaning device also includes a second filter unit, which is disposed on the side of the riser pipe away from the spiral guide; the second filter unit can filter dust particles smaller than the dust particles filtered by the first filter unit.

[0032] With this setup, the second filter unit can further filter out small dust particles in the airflow, improving the cleanliness of the return gas.

[0033] As an alternative implementation, the spiral guide includes an intermediate shaft and a plurality of guide vanes, the intermediate shaft extending along a first direction and the plurality of guide vanes arranged around the intermediate shaft.

[0034] With this configuration, the airflow will be deflected when it passes through the guide vanes, forming a cyclone. This causes dust to gather on the outer layer of the cyclone under the action of centrifugal force, thus achieving dust-air separation.

[0035] As an optional implementation, the air inlet side of the spiral guide has an air guide surface that extends spirally with a first direction as the axis, and the end of the air guide surface has a vent, from which the spiral airflow flows toward the first filter component.

[0036] With this setup, the airflow will be deflected when it passes the air guide surface, forming a cyclone. This causes dust to gather on the outer layer of the cyclone under the action of centrifugal force, thus achieving dust-air separation.

[0037] As an optional implementation, the cleaning device further includes a second filter assembly disposed in the dust cup assembly; the second filter assembly is located on the side of the spiral guide away from the first filter assembly; the airflow entering the dust cup assembly is filtered by the second filter assembly before entering the spiral guide.

[0038] With this setup, the airflow can be pre-filtered by the second filter component, reducing the pressure on subsequent dust and gas separation.

[0039] As an optional implementation, the dust cup assembly includes a first cup body and a second cup body, which are joined together along a first direction; a first filter assembly is disposed in the first cup body, and a second filter assembly and a spiral guide are disposed in the second cup body; the spiral guide is connected to the second filter assembly.

[0040] This configuration, by connecting the first and second cups along the first direction, reduces the radial dimension of the dust cup assembly, making it easier for users to operate.

[0041] As an optional implementation, the second cup body has an air inlet at the end opposite to the first cup body, and the air inlet is provided with an openable and closable dust baffle. The projection of the second filter assembly along the first direction covers the dust baffle.

[0042] With this setup, the opening and closing of the air inlet can be controlled by the dust baffle to prevent dust from flowing back.

[0043] This application provides a cleaning device, including a dust cup assembly, a spiral guide, and a first filter assembly. The spiral guide and the first filter assembly are disposed within the dust cup assembly. The spiral guide and the first filter assembly are arranged along a first direction, which is the length direction of the cleaning device. The first filter assembly includes an air riser and a first filter unit, which is disposed around the outside of the air riser. The airflow flowing through the spiral guide spirals upward and enters the first filter assembly, where the spiral upward movement of the airflow separates dust particles from the airflow. The first filter unit is configured to adsorb dust particles. The cleaning device of this application makes full use of axial space, forming a rod-shaped main body. The radial diameter of the main body structure is smaller and finer, making the cleaning device more convenient, flexible, and effortless to use.

[0044] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the cleaning equipment provided by this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A schematic diagram of a cleaning device with a spiral structure as a guide vane, provided in an embodiment of this application;

[0047] Figure 2 A schematic diagram of a cleaning device with a spiral structure as the air guide surface, provided in an embodiment of this application;

[0048] Figure 3 A schematic diagram of a spiral guide with a guide vane as the spiral structure provided in an embodiment of this application;

[0049] Figure 4 A schematic diagram of a spiral guide with a spiral structure as the air guide surface provided in an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of the structure of the second filtering component provided in an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the structure of a first filter assembly with filter paper provided in an embodiment of this application;

[0052] Figure 7 A schematic diagram of the structure of a cleaning device with a filter element provided in an embodiment of this application;

[0053] Figure 8 A schematic diagram of a cleaning device with a second ventilation hole in the ventilation duct body provided in an embodiment of this application;

[0054] Figure 9 A schematic diagram of the structure of the air riser pipe with a first ventilation hole provided in the embodiment of this application;

[0055] Figure 10 A schematic diagram of a riser pipe with a second ventilation hole provided in an embodiment of this application;

[0056] Figure 11 A schematic diagram of the structure of a cleaning device with a dust collection box provided in an embodiment of this application;

[0057] Figure 12 This is a schematic diagram of the structure of the riser pipe with a dust collection box provided in an embodiment of this application;

[0058] Figure 13 This is a schematic diagram of the structure of the dust collection box provided in an embodiment of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 10- Cleaning equipment;

[0061] 100 - Dust cup assembly; 110 - First cup body; 120 - Second cup body; 130 - Dust baffle; 140 - Air inlet; 150 - Air outlet;

[0062] 200 - Spiral guide vane; 210 - Intermediate shaft; 220 - Guide vane; 230 - Air guide surface;

[0063] 300 - First filter assembly; 310 - Air riser pipe; 311 - Mounting bracket; 3111 - First ventilation hole; 312 - Ventilation pipe body; 3121 - Opening; 3122 - Second ventilation hole; 320 - First filter unit; 321 - Filter element; 322 - Dust collection box; 3221 - Box body; 3222 - Adsorbent material; 3223 - Dust inlet; 323 - Filter paper;

[0064] 400 - Second Filter Unit;

[0065] 500 - Second filter assembly; 510 - Annular support; 511 - Support rib; 520 - Filter screen; 530 - Filter chamber;

[0066] 600 - Floor brush assembly; 610 - Floor brush; 611 - Air intake; 612 - Air intake channel; 620 - Lower cover of the unit;

[0067] 700 - Main body of equipment; 710 - Fan. Detailed Implementation

[0068] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0070] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0071] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0072] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0073] Vacuum cleaners, floor scrubbers, and robotic vacuum cleaners are widely used for cleaning household environments. These devices suck up dust from surfaces to be cleaned and separate the dust from the air, collecting the dust. Typically, these devices have a floor brush and a dust cup. The floor brush acts as a suction port, drawing in dust from the surface. The airflow carrying the dust enters the dust cup radially, where a cyclone separator creates a downward spiral motion. The dust particles, under centrifugal force, collide with the inner wall of the dust cup, lose kinetic energy, and fall into the dust collection chamber at the bottom under their own gravity.

[0074] However, the current cyclone separation structure of the dust cup increases the diameter of the dust cup, making the overall cleaning equipment larger, less flexible to operate, and more laborious.

[0075] To address the aforementioned technical problems, this application provides a cleaning device in which a spiral guide and a first filter assembly are arranged at intervals along the axial direction of the dust cup. Airflow enters along the axial direction of the dust cup, swirls through the spiral guide, and enters the first filter assembly. The riser creates negative pressure that can pass through the air passage. The filter unit arranged around the riser can adsorb dust particles thrown to the inner wall of the dust cup by the spiral airflow. In this way, the axial space of the cleaning device can be fully utilized to form a rod-shaped main body. The radial diameter of the main body structure is smaller and finer, making the cleaning device more convenient, flexible, easy, and labor-saving to use.

[0076] The following is an example illustrating the application scenarios of the cleaning equipment provided in the embodiments of this application.

[0077] The cleaning equipment provided in this application embodiment can be applied to various product types, including but not limited to mite removers, mopping machines, floor scrubbers, and robotic vacuum cleaners, depending on the product type. The cleaning equipment provided in this application embodiment can be used to clean surfaces of various materials, such as flexible surfaces like bedding, sofas, and clothing, or hard surfaces like floors, tiles, and glass. This application embodiment does not specifically limit the application in this regard.

[0078] See Figures 1 to 13As shown, this application provides a cleaning device 10, including a device body 700, a dust cup assembly, and a floor brush assembly 600. The floor brush assembly 600 includes a floor brush 610 that contacts the surface to be cleaned and a lower cover 620 extending axially along the device body 700. One end of the dust cup assembly 600 is connected to the lower cover 620, and the other end is connected to the device body 700 to form a long rod-shaped body body. The floor brush 610 has an air intake 611 and an air intake channel 612. One end of the air intake channel 612 communicates with the air intake 611, and the other end communicates with the dust cup assembly 100. The floor brush 610 can move on the surface to be cleaned and sucks in debris and dust through the air intake 611. The debris and dust enter the dust cup assembly 100 through the air intake channel 612 and are collected. The device body 700 extends in a first direction and is equipped with a fan 710 to provide power for the airflow of the entire machine.

[0079] The cleaning device 10 also includes a dust cup assembly 100, a spiral guide 200, and a first filter assembly 300, which are disposed within the dust cup assembly 100. The spiral guide 200 is used to guide the airflow entering from the floor brush 610, allowing the airflow to spiral upward and generate centrifugal force. The first filter 321 is used to filter dust, achieving dust-air separation. The filtered dust is retained in the cavity of the dust cup assembly 100.

[0080] The spiral guide 200 and the first filter assembly 300 are arranged along a first direction, which is the length direction of the cleaning device 10, i.e., the axial direction of the dust cup. In this way, the spiral guide 200 and the first filter assembly 300 form a rod-shaped main body of the cleaning device 10. The radial diameter of the main body 700 is smaller and thinner, making the cleaning device 10 easier and more flexible to use. The increased axial length along the main body 700 makes it easier for cleaning personnel to hold, saving effort.

[0081] It should be noted that the first filter assembly 300 includes an air riser 310 and a first filter unit 320. The first filter unit 320 is arranged around the outside of the air riser 310 and is configured to adsorb dust particles. During operation, the fan 710 is started, and the airflow carries up the dust and debris on the surface to be cleaned. It enters the main body 700 of the cleaning device 10 from the floor brush 610. The airflow forms a cyclone after passing through the spiral guide 200 and spirals upward in the dust cup assembly 100. Due to the high density of dust, it will accumulate near the inner side wall of the dust cup assembly under the action of centrifugal force, making it easier to contact the first filter unit 320. The airflow spirals upward through the spiral guide 200 and enters the first filter assembly 300. The spiral upward airflow separates the dust particles from the airflow. After being filtered, the dust can be collected in the cavity of the dust cup assembly 100. The airflow continues to flow towards the fan 710 after passing through the first filter element 321.

[0082] The dust cup assembly 100 has a receiving cavity that extends along a first direction. The receiving cavity has an air inlet 140 and an air outlet 150 at its two ends along the first direction. The air inlet 140 faces the floor brush 610, and the air outlet 150 faces the fan 710. The airflow entering the receiving cavity flows from the air inlet 140 to the air outlet 150. The first filter assembly 300 is located downstream of the airflow direction in the receiving cavity, and the spiral guide 200 is located upstream of the airflow direction relative to the first filter assembly 300. In this way, the airflow carrying dust can be centrifuged and then filtered to achieve dust-air separation.

[0083] It should be noted that there is a gap between the first filter component 300 and the spiral guide 200 along the first direction. This allows the airflow, after swirling through the spiral guide 200, to not directly enter the first filter component 300, but rather to have sufficient spiral upward space, enabling thorough separation of dust and air. The size of the gap between the first filter component 300 and the spiral guide 200 can be adjusted according to the dust-air separation effect; this embodiment does not impose a specific limitation.

[0084] Understandably, the riser pipe 310 is inserted in the middle of the first filter unit 320, and has an opening 3121 at the end facing the spiral guide 200. When the first filter unit 320 is working normally, as the airflow spirals upward, dust is concentrated on the outer layer of the cyclone, comes into contact with the first filter unit 320 and is isolated. The airflow continues to pass through the first filter unit 320, and a small portion of clean gas in the middle of the cyclone can pass through the opening 3121. When the first filter unit 320 is blocked due to continuous operation, the airflow can pass directly through the opening 3121 of the riser pipe 310, preventing damage to the fan 710. At the same time, there is a gap between the opening 3121 and the air outlet side of the spiral guide 200, which can prevent dust from directly entering the opening 3121 without sufficient centrifugation.

[0085] It should be noted that the outer contour of the spiral guide 200 along the first direction covers the opening 3121. After the airflow flows out of the spiral guide 200, it forms a cyclone. Dust mainly concentrates on the outer layer of the cyclone, forming a dust ring. Along the first direction, the dust ring and the outer contour of the spiral guide 200 are located at the same position. Since the outer contour of the spiral guide 200 along the first direction covers the opening 3121, the dust ring can fall around the opening 3121 and contact the first filter unit 320 without entering the opening 3121.

[0086] As one possible implementation, the riser pipe 310 and the spiral guide 200 are coaxially arranged; the axial directions of the riser pipe 310 and the spiral guide 200 are parallel to the first direction.

[0087] Understandably, when the riser pipe 310 and the spiral guide 200 are coaxially arranged, the dust particles that are thrown out spiral up along the inner wall of the dust cup, preventing the dust particles from directly entering the riser pipe 310.

[0088] As one possible implementation, the first filter unit 320 is coaxially arranged with the air riser 310, the inner wall of the first filter unit 320 is engaged with the outer wall of the air riser 310, and the outer wall of the first filter unit 320 is engaged with the inner wall of the dust cup assembly 100.

[0089] It is understood that there is an annular space between the outer wall of the riser pipe 310 and the inner wall of the dust cup assembly 100. The first filter unit 320 can be disposed in this annular space and coaxial with the riser pipe 310. The first filter unit 320 can be a soft structure such as filter cotton or filter paper 323, or a rigid structure such as a dust collection box 322. During installation, the first filter unit 320 is compressed and installed in the annular space. Due to the expansion tendency of the first filter unit 320, the inner wall of the first filter unit 320 contacts and abuts against the outer wall of the riser pipe 310, and the outer wall of the first filter unit 320 contacts and abuts against the inner wall of the dust cup assembly 100. This makes the gap between the first filter unit 320 and the outer wall of the riser pipe 310 and the inner wall of the dust cup assembly 100 very small, so as to prevent dust from passing through.

[0090] It should be noted that the riser pipe 310 includes a mounting bracket 311 and a ventilation pipe body 312; the ventilation pipe body 312 is axially connected at both ends, and the opening 3121 is located at the downward-facing end of the ventilation pipe body 312, that is, the opening 3121 is the air inlet end of the ventilation pipe body 312; the mounting bracket 311 is connected to the air outlet end of the ventilation pipe body 312, and the air inlet end of the ventilation pipe body 312 protrudes downward relative to the mounting bracket 311, and the mounting bracket 311 is connected to the inner wall of the dust cup assembly 100; the first filter unit 320 is arranged around the periphery of the ventilation pipe body 312, and the first filter unit 320 is blocked on the side of the mounting bracket 311 facing the spiral guide 200.

[0091] The mounting bracket 311 can be connected to the inner wall of the dust cup assembly 100 by a snap-fit, a threaded connection, or it can be mounted on the baffle of the inner wall of the dust cup assembly 100 by gravity. This application embodiment does not make specific limitations.

[0092] For example, the side of the mounting bracket 311 has an annular recess, and the inner wall of the dust cup assembly 100 has a protrusion that matches the recess. During installation, the mounting bracket 311 is pressed so that the protrusion engages with the recess, thereby fixing the mounting bracket 311.

[0093] See Figure 1 , Figure 2 and Figure 6 In some embodiments, the first filtration unit 320 includes filter paper 323, which is attached to the side of the mounting bracket 311 facing the spiral guide 200; the mounting bracket 311 has ventilation holes, and the filter paper 323 covers the ventilation holes.

[0094] It should be noted that the ventilation holes penetrate the mounting bracket 311, connecting the upper and lower spaces of the mounting bracket 311. There are multiple ventilation holes, which are spaced apart along the annular surface at the bottom of the mounting bracket 311. The annular surface at the bottom of the mounting bracket 311 is the side of the mounting bracket 311 facing the spiral guide 200. The filter paper 323 is attached to the annular surface at the bottom of the mounting bracket 311 and covers all the ventilation holes. When the airflow rises and reaches the filter paper 323, the dust is blocked by the filter paper 323, and the airflow passes through the filter paper 323 and then through the ventilation holes, completing the dust-air separation.

[0095] See Figure 7 , Figure 8 , Figure 9 and Figure 10 In other embodiments, the first filter unit 320 includes a filter element 321 that fills the space between the outer wall of the ventilation duct 312 and the inner wall of the dust cup assembly 100; along a first direction, the thickness of the filter element 321 is less than or equal to the length of the ventilation duct 312.

[0096] It is understandable that the filter element 321 can be filter cotton, which can trap dust while allowing airflow to pass through. In addition, the thickness of the filter element 321 is less than or equal to the length of the ventilation duct 312, that is, the bottom surface of the filter element 321 is higher than or flush with the opening 3121 of the riser pipe 310. When the airflow reaches the bottom surface of the first filter unit 320, it can only pass through the first filter unit 320 and will not flow radially along the dust cup assembly 100 to the opening 3121 of the riser pipe 310.

[0097] See Figure 9 and Figure 10 , combined Figure 7 and Figure 8 The end face of the mounting bracket 311 facing the spiral guide 200 surrounds the ventilation duct 312, and the end face of the mounting bracket 311 facing the spiral guide 200 is provided with a plurality of first ventilation holes 3111, and the upper end face of the filter element 321 covers the first ventilation holes 3111; and / or, the side wall of the ventilation duct 312 is provided with a plurality of second ventilation holes 3122 connecting its inner and outer sides, and the inner side wall of the filter element 321 covers the second ventilation holes 3122.

[0098] As one possible implementation, the annular bottom surface of the mounting bracket 311 is provided with multiple first ventilation holes 3111. After the airflow is filtered by the filter element 321, it can continue to rise without changing the flow direction and pass directly through the first ventilation holes 3111, making the air path smoother.

[0099] As one possible implementation, the ventilation duct 312 has multiple second ventilation holes 3122 connecting its inner and outer sides on its sidewall. The ventilation duct 312 can be made relatively long, and its sidewall can have more second ventilation holes 3122, thereby increasing the contact area between the filter element 321 and the second ventilation holes 3122 and improving the ventilation efficiency. In this embodiment, after the airflow is filtered by the filter element 321, it enters the ventilation duct 3122 through the second ventilation holes 3122 and then continues to rise.

[0100] As one possible implementation, the annular bottom surface of the mounting bracket 311 is provided with multiple first ventilation holes 3111, while the side wall of the ventilation pipe 312 is provided with multiple second ventilation holes 3122. After being filtered by the filter element 321, part of the airflow passes through the first ventilation holes 3111 and the other part of the airflow passes through the second ventilation holes 3122, thus further increasing the ventilation efficiency.

[0101] It should be noted that when the side wall of the ventilation duct 312 is provided with multiple second ventilation holes 3122, the bottommost second ventilation hole 3122 is spaced apart from the air inlet end of the ventilation duct 312. At the same time, the bottommost second ventilation hole 3122 is higher than the bottom end of the filter element 321 and is spaced apart from the bottom end of the filter element 321. That is, in the first direction, the bottom end of the filter element 321 is located between the bottommost second ventilation hole 3122 and the air inlet end of the ventilation duct 312. In this way, it can be ensured that the airflow is fully filtered before entering the second ventilation hole 3122.

[0102] See Figure 11 , Figure 12 and Figure 13 In some other embodiments, the first filter unit 320 includes a dust collection box 322, which includes a box body 3221 and an adsorbent material 3222 disposed within the box body 3221. The shape of the box body 3221 matches the shape of the space between the outer wall of the ventilation duct 312 and the inner wall of the dust cup assembly 100. The end face of the box body 3221 facing the spiral guide 200 is provided with a dust inlet 3223.

[0103] It should be noted that the storage box is annular and fitted onto the ventilation duct 312. The inner and outer walls of the storage box abut against the outer wall of the ventilation duct 312 and the inner wall of the dust cup assembly 100, respectively, with an interference fit, thereby reducing the gap between the storage box and the outer wall of the ventilation duct 312 and the inner wall of the dust cup assembly 100. The bottom surface of the storage box, i.e., the end face of the box body 3221 facing the spiral guide 200, is higher than or flush with the air inlet end of the ventilation duct 312, preventing turbulent airflow from causing dust to directly enter the ventilation duct 312. During operation, airflow enters the box body 3221 through the dust inlet 3223, the adsorption material 3222 adsorbs the dust in the airflow, and clean gas passes through the gaps in the adsorption material 3222, achieving dust-gas separation.

[0104] Among them, the adsorbent material 3222 can be a material with adsorption properties such as silica gel balls, zeolite, activated carbon, etc.

[0105] It should be noted that the cleaning device 10 also includes a second filter unit 400, which is located on the side of the riser pipe 310 away from the spiral guide 200; the second filter unit 400 can filter dust particles smaller than the dust particles filtered by the first filter unit 320.

[0106] The second filter unit 400 can be a HEPA filter assembly. The HEPA filter assembly is located on the upper side of the pipe support and completely seals the cross-section of the receiving cavity. The airflow that has been centrifuged and filtered by the first filter unit 320 may still carry small dust particles. After the airflow passes through the ventilation hole or ventilation duct 312, it flows through the HEPA filter assembly, which can further filter out small dust particles and improve the cleanliness of the airflow. After being filtered by the second filter unit 400, the airflow continues to rise and flows to the fan 710.

[0107] See Figure 3 In some embodiments, the spiral guide 200 includes an intermediate shaft 210 and a plurality of guide vanes 220, the intermediate shaft 210 extending along a first direction and the plurality of guide vanes 220 arranged around the intermediate shaft 210.

[0108] It should be noted that the intermediate shaft 210 can serve as a mounting base and support for the guide vane 220, and rotates together with the guide vane 220. The guide vane 220 is arc-shaped. When airflow passes through the guide vane 220, the arc-shaped blades can apply a continuous, tangential force to the axial airflow. As the airflow flows along the arc-shaped surface of the blades, it is forced to change direction, transforming from axial motion to helical motion. The airflow can drive the guide vane 220 to rotate, and the rotating guide vane 220 simultaneously enhances the helical motion of the airflow, thereby improving energy conversion efficiency.

[0109] See Figure 4In some other embodiments, the air inlet side of the spiral guide 200 has an air guide surface 230 that extends spirally with a first direction as the axis, and the end of the air guide surface 230 has a vent, from which the spiral airflow flows toward the first filter assembly 300.

[0110] It should be noted that after the airflow enters from the air inlet side of the spiral guide 200, the airflow will spiral up along the guide surface 230. The guide surface 230 can apply a continuous tangential force to the axial airflow. When the airflow rises along the guide surface 230, it is forced to change direction, changing from axial motion to spiral motion.

[0111] See Figure 5 The cleaning device 10 also includes a second filter assembly 500, which is disposed in the dust cup assembly 100. The second filter assembly 500 is located on the side of the spiral guide 200 away from the first filter assembly 300. The airflow entering the dust cup assembly 100 is filtered by the second filter assembly 500 before entering the spiral guide 200.

[0112] It should be noted that the second filter assembly 500 includes an annular support 510 and a filter screen 520. The annular support 510 has multiple support ribs 511 extending axially along its sides. The filter screens 520 can be installed in the recesses between adjacent support ribs 511. Multiple filter screens 520 form the sidewalls of the second filter assembly 500. The filter screens 520 are connected to the annular support 510 and form a filter cavity 530. The filter cavity 530 is open at one end facing the air inlet 140, forming an open end and covering the air inlet 140. The end of the annular support 510 facing the spiral guide 200 is a sealing surface, which is connected to the spiral guide 200.

[0113] During operation, multiple support ribs 511 abut against the inner wall of the dust cup assembly 100, and the filter screen 520 has a gap with the inner wall of the dust cup assembly 100. Airflow enters from the opening end. Due to the obstruction of the sealing surface, the airflow can only flow through the filter screen 520 and flows in the first direction along the gap between the filter screen 520 and the inner wall of the dust cup assembly 100, and then enters the spiral guide 200.

[0114] The mesh size of filter 520 is larger than that of the first filter unit 320. It is mainly used to intercept garbage and large dust particles, protecting subsequent filter units and preventing them from becoming clogged. Filter 520, together with the first filter unit 320 and the second filter unit 400, forms a multi-stage filtration structure, improving the overall filtration efficiency.

[0115] In one possible implementation, the dust cup assembly 100 includes a first cup body 110 and a second cup body 120, which are connected along a first direction; a first filter assembly 300 is disposed in the first cup body 110, and a second filter assembly 500 and a spiral guide 200 are disposed in the second cup body 120; the spiral guide 200 is connected to the second filter assembly 500.

[0116] It should be noted that the first cup body 110 and the second cup body 120 can be connected by means of easy disassembly, such as snaps or threads. After cleaning, the first cup body 110 and the second cup body 120 can be disassembled, and then the spiral guide 200 can be taken out. The second filter component 500 connected to the spiral guide 200 will also be taken out. At this time, the garbage and debris in the second cup body 120 can be poured out, and the spiral guide 200 and the filter screen 520 can be cleaned.

[0117] As one possible implementation, the second cup body 120 has an air inlet 140 at the end opposite to the first cup body 110. The air inlet 140 is provided with an openable and closable dust baffle 130, and the projection of the second filter assembly 500 along the first direction covers the dust baffle 130.

[0118] It is understood that the internal cavities of the first cup body 110 and the second cup body 120 together form a receiving cavity. The air inlet 140 is located at the end of the second cup body 120 opposite to the first cup body 110, and the air outlet 150 is located at the end of the first cup body 110 opposite to the second cup body 120. Since the second cup body 120 is located below the first cup body 110, garbage, debris, and dust are mainly collected in the second cup body 120. By providing a dust baffle 130 at the air inlet 140, garbage, debris, and dust can be prevented from flowing back into the floor brush 610.

[0119] It should be noted that the dust baffle 130 can be a baffle that can only open and close into the second cup 120. When the motor is working, the fan 710 starts, and the airflow can push open the dust baffle 130, opening the air inlet 140, allowing garbage and dust to enter the second cup 120. When the motor is off, without the support of the airflow, the dust baffle 130 closes the air inlet 140 under the action of gravity, preventing garbage and dust from flowing back from the air inlet 140 into the floor brush 610.

[0120] This application provides a cleaning device 10, including a dust cup assembly 100, a spiral guide 200, and a first filter assembly 300. The spiral guide 200 and the first filter assembly 300 are disposed within the dust cup assembly 100. The spiral guide 200 and the first filter assembly 300 are arranged along a first direction, which is the length direction of the cleaning device 10. The first filter assembly 300 includes an air riser 310 and a first filter unit 320, which is disposed around the outside of the air riser 310. The airflow flowing through the spiral guide 200 spirals upward and enters the first filter assembly 300, and the spiral upward airflow separates dust particles from the airflow. The first filter unit 320 is configured to adsorb dust particles. The cleaning device 10 of this application makes full use of axial space to form a rod-shaped main body. The radial diameter of the main body structure is smaller and finer, making the cleaning device 10 lighter, more flexible, and easier to use.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A cleaning device, characterized in that, The cleaning device (10) includes a dust cup assembly (100), a spiral guide (200), and a first filter assembly (300); the spiral guide (200) and the first filter assembly (300) are disposed within the dust cup assembly (100); the spiral guide (200) and the first filter assembly (300) are arranged along a first direction, which is the length direction of the cleaning device (10); The first filter assembly (300) includes an air riser (310) and a first filter unit (320), the first filter unit (320) being disposed around the outside of the air riser (310); the airflow flowing through the spiral guide (200) spirals upward and enters the first filter assembly (300), the spiral upward airflow causing dust particles to separate from the airflow; the first filter unit (320) is configured to adsorb the dust particles.

2. The cleaning equipment according to claim 1, characterized in that, The dust cup assembly (100) has a receiving cavity that extends along the first direction; the receiving cavity is provided with an air inlet (140) and an air outlet (150) at both ends along the first direction, and the airflow entering the receiving cavity flows from the air inlet (140) to the air outlet (150); the first filter assembly (300) is located downstream of the airflow direction in the receiving cavity, and the spiral guide (200) is located upstream of the airflow direction relative to the first filter assembly (300).

3. The cleaning equipment according to claim 1, characterized in that, Along the first direction, there is a gap between the first filter assembly (300) and the spiral guide (200).

4. The cleaning equipment according to claim 3, characterized in that, The riser pipe (310) has an opening (3121) at one end facing the spiral guide (200), and there is a gap between the opening (3121) and the air outlet side of the spiral guide (200).

5. The cleaning equipment according to claim 4, characterized in that, The outer contour of the spiral guide (200) along the first direction covers the opening (3121).

6. The cleaning equipment according to claim 1, characterized in that, The riser pipe (310) and the spiral guide (200) are coaxially arranged; the axial directions of the riser pipe (310) and the spiral guide (200) are parallel to the first direction.

7. The cleaning equipment according to claim 6, characterized in that, The first filter unit (320) is coaxially arranged with the riser pipe (310), the inner wall of the first filter unit (320) is engaged with the outer wall of the riser pipe (310), and the outer wall of the first filter unit (320) is engaged with the inner wall of the dust cup assembly (100).

8. The cleaning equipment according to any one of claims 1-7, characterized in that, The riser pipe (310) includes a mounting bracket (311) and a ventilation pipe body (312); the ventilation pipe body (312) is axially connected at both ends; the mounting bracket (311) is connected to the air outlet end of the ventilation pipe body (312), and the mounting bracket (311) is connected to the inner wall of the dust cup assembly (100); the first filter unit (320) is arranged around the periphery of the ventilation pipe body (312), and the first filter unit (320) is blocked on the side of the mounting bracket (311) facing the spiral guide (200).

9. The cleaning equipment according to claim 8, characterized in that, The first filtration unit (320) includes filter paper (323) which is attached to the side of the mounting bracket (311) facing the spiral guide (200); the mounting bracket (311) has ventilation holes, and the filter paper (323) covers the ventilation holes.

10. The cleaning equipment according to claim 8, characterized in that, The first filter unit (320) includes a filter element (321) which is filled between the outer wall of the ventilation duct (312) and the inner wall of the dust cup assembly (100); along the first direction, the thickness of the filter element (321) is less than or equal to the length of the ventilation duct (312).

11. The cleaning equipment according to claim 10, characterized in that, The mounting bracket (311) surrounds the ventilation pipe body (312) on the end face facing the spiral guide (200), and the end face of the mounting bracket (311) facing the spiral guide (200) is provided with a plurality of first ventilation holes (3111), and the upper end face of the filter element (321) covers the first ventilation holes (3111); and / or, The sidewall of the ventilation duct (312) is provided with a plurality of second ventilation holes (3122) connecting its inner and outer sides, and the inner sidewall of the filter (321) covers the second ventilation holes (3122).

12. The cleaning equipment according to claim 8, characterized in that, The first filter unit (320) includes a dust collection box (322), which includes a box body (3221) and an adsorbent material (3222) disposed in the box body (3221). The shape of the box body (3221) matches the shape of the space between the outer wall of the ventilation duct (312) and the inner wall of the dust cup assembly (100). The end face of the box body (3221) facing the spiral guide (200) is provided with a dust inlet hole (3223).

13. The cleaning equipment according to claim 1, characterized in that, The cleaning device (10) further includes a second filter unit (400), which is disposed on the side of the riser pipe (310) away from the spiral guide (200); the second filter unit (400) can filter dust particles smaller than the dust particles filtered by the first filter unit (320).

14. The cleaning equipment according to any one of claims 1-7, characterized in that, The spiral guide (200) includes an intermediate shaft (210) and a plurality of guide vanes (220), the intermediate shaft (210) extending along the first direction, and the plurality of guide vanes (220) arranged around the intermediate shaft (210).

15. The cleaning equipment according to any one of claims 1-7, characterized in that, The spiral air guide (200) has an air guide surface (230) extending spirally with the first direction as the axis on the air inlet side. The end of the air guide surface (230) has a vent, and the spiral airflow flowing out of the vent flows to the first filter assembly (300).

16. The cleaning equipment according to any one of claims 1-7, characterized in that, The cleaning device (10) further includes a second filter assembly (500), which is disposed in the dust cup assembly (100); the second filter assembly (500) is located on the side of the spiral guide (200) away from the first filter assembly (300); the airflow entering the dust cup assembly (100) is filtered by the second filter assembly (500) before entering the spiral guide (200).

17. The cleaning equipment according to claim 16, characterized in that, The dust cup assembly (100) includes a first cup body (110) and a second cup body (120), the first cup body (110) and the second cup body (120) being connected along the first direction; the first filter assembly (300) is disposed in the first cup body (110), the second filter assembly (500) and the spiral guide (200) are disposed in the second cup body (120); the spiral guide (200) is connected to the second filter assembly (500).

18. The cleaning equipment according to claim 17, characterized in that, The second cup body (120) has an air inlet (140) at one end away from the first cup body (110), and the air inlet (140) is provided with an openable and closable dust baffle (130). The projection of the second filter assembly (500) along the first direction covers the dust baffle (130).

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