Dust collection equipment

Abstract

The utility model discloses dust collection equipment. The dust collection equipment comprises a dust collection main body, a dust cup, a separation device, a suction device and a rotating part, the dust cup is arranged on the dust collection main body and is provided with an air inlet; the separation device is fixed on the dust collection main body and is at least partially positioned in the dust cup; the suction device is arranged on the dust collection main body, the suction device enables airflow to enter the dust cup from the air inlet and to be separated by the separation device, and the separated clean airflow flows out from the air outlet end of the separation device and then enters the suction device; the rotating piece is rotationally arranged in the dust cup and at least covers the peripheral side of the part, located in the dust cup, of the separating device, and the rotating piece rotates under the action of airflow entering the dust cup from the air inlet. According to the utility model, the filaments are not easy to wind on the rotating part and the separating device, the separating device is not easy to block, an additional driving part is not needed to drive the rotating part, the structure is simpler, and the cost is lower.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning tools, specifically to a vacuum cleaner. Background Technology

[0002] Vacuum cleaning equipment typically includes a separation device, a suction head, a suction device, and a dust cup. The suction head draws in external dirt and directs it into the dust cup, where the separation device separates it. The dirt remains in the dust cup, while the separated clean airflow flows out of the separation device, enters the suction device, and is then discharged from the vacuum cleaner, forming an airflow cycle for cleaning. During the separation process, especially with cyclone separators, filamentous materials (such as hair and yarn) easily become entangled on the outer surface of the separation device, causing blockage and affecting separation efficiency. Current technology uses a cleaning mechanism and a drive mechanism on the outside of the separator for cleaning. This increases structural complexity and cost, and also increases the size of the vacuum cleaner itself, hindering the production of miniaturized vacuum cleaners. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a dust collection device that solves the problem that the separation device of traditional dust collection devices is prone to entanglement of filamentous material, which leads to easy blockage of the separation device and affects the separation efficiency.

[0004] To achieve the above objectives, the present invention provides a vacuum cleaning device, comprising:

[0005] The main body of the vacuum cleaner;

[0006] A dust cup is disposed on the main body of the vacuum cleaner and has an air inlet;

[0007] A separation device is fixed to the vacuum body and is at least partially located inside the dust cup;

[0008] A suction device is provided on the dust collection body. The suction device allows airflow to enter the dust cup from the air inlet and be separated by the separation device. The separated clean airflow flows out from the air outlet of the separation device and then enters the suction device.

[0009] A rotating component is rotatably disposed inside the dust cup and at least covers the outer periphery of the portion of the separating device located inside the dust cup. The rotating component rotates under the action of the airflow entering the dust cup from the air inlet.

[0010] Optionally, the dust cup is cylindrical, and the air inlet is formed on the peripheral side of the dust cup.

[0011] Optionally, a boss protrudes from the outer peripheral side of the dust cup, and the air inlet penetrates the boss in a tangential direction along the peripheral side of the dust cup to communicate with the inner cavity of the dust cup.

[0012] Optionally, the dust cup is cylindrical and has a first end and a second end that are opposite to each other along the axial direction of the rotating member. The first end of the dust cup is connected to the dust collection body, and the air inlet is located at the second end of the dust cup.

[0013] Optionally, the airflow direction entering the dust cup from the air inlet is parallel to the axis of the rotating component.

[0014] Optionally, the vacuuming device further includes an air duct, at least a portion of which extends from the air inlet into the dust cup, and the portion of the air duct extending into the dust cup is coaxially arranged with the rotating component.

[0015] Optionally, the rotating component is rotatably connected to the separating device.

[0016] Optionally, the rotation axis of the rotating component is arranged in the vertical direction, the upper end of the rotating component surrounds the outer periphery of the separating device, and the lower end of the rotating component is rotatably connected to the separating device through a bearing structure.

[0017] Optionally, the bearing structure includes a bearing and a locking fastener. The rotating component is rotatably sleeved on the outer periphery of the separating device via the bearing, and the locking fastener is detachably fixed to the separating device and abuts against the bottom of the bearing.

[0018] Optionally, the inner ring side of the rotating component is provided with a stop portion, which abuts against the upper end of the bearing;

[0019] The locking fastener is screwed to the separating device, and the locking fastener abuts against the bottom end of the bearing.

[0020] Optionally, the rotating component includes a first connecting end and a second connecting end arranged opposite to each other along its axial direction, and a plurality of blades connected between the first connecting end and the second connecting end. At least one of the first connecting end and the second connecting end is rotatably connected to the separating device, and the plurality of blades are arranged at intervals along its circumference to cover the outer periphery of the separating device.

[0021] Optionally, along the circumference of the rotating member, the multiple blades are all inclined toward the same side, and the angle θ between the airflow direction entering the dust cup from the air inlet and the windward surface of the corresponding blade is 70° to 160°.

[0022] Optionally, each blade has a windward and leeward surface arranged opposite each other along the circumference of the rotating member, and a first wall and a second wall connecting the periphery of the windward and leeward surfaces. The first wall is disposed close to the separating device, and the second wall is arc-shaped, such that the area of ​​the middle region of the windward surface is larger than the area of ​​its two ends along the axial direction.

[0023] Optionally, each of the windward surfaces is inclined along the axial direction of the rotating member; and the windward surface can be fully exposed from the bottom end of the rotating member and on the orthogonal projection along the axial direction of the rotating member.

[0024] This utility model also provides a vacuum cleaner, including:

[0025] The main body of the vacuum cleaner;

[0026] A dust cup, one end of which is connected to the dust collection body along its axial direction, and an air inlet at the other end of which is provided along its axial direction;

[0027] A separation device is fixed to the vacuum body and is at least partially located inside the dust cup;

[0028] A suction device is provided on the dust collection body. The suction device allows airflow to enter the dust cup from the air inlet and be separated by the separation device. The separated clean airflow flows out from the air outlet of the separation device and then enters the suction device.

[0029] A rotating component is disposed inside the dust cup and rotatably disposed on the outer periphery of the separation device. The rotating component rotates under the action of the airflow entering the dust cup from the air inlet.

[0030] The technical solution provided by this utility model has the following beneficial effects:

[0031] The dust collection device provided by this utility model includes a dust collection body, a dust cup, a separation device, a suction device, and a rotating component. The suction device generates a suction airflow, allowing external dirt to enter the dust cup through the air inlet under the action of the airflow. The dirt is then separated by the separation device within the dust cup, allowing it to remain inside. The separated clean airflow flows from the outlet of the separation device to the suction device and is discharged. Furthermore, a rotating component is installed inside the dust cup, covering the outside of the separation device. The rotating component is driven to rotate by the airflow entering the dust cup, partially blocking the dirt sucked into the dust cup, especially filamentous materials. Since the rotation direction of the rotating component is consistent with the airflow direction, filamentous materials are less likely to become entangled on the rotating component and the separation device, allowing them to fall more easily into the dust cup. This prevents the separation device from clogging, effectively cleaning the outer surface of the separation device. Moreover, no additional driving component is needed to drive the rotating component, resulting in a simpler structure and lower cost. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 A schematic diagram of an embodiment of a vacuum cleaner provided by this utility model;

[0034] Figure 2 for Figure 1 An exploded view of the vacuum cleaner described herein;

[0035] Figure 3 An exploded structural diagram of another embodiment of a vacuum cleaner provided by this utility model;

[0036] Figure 4 for Figure 3 A cross-sectional structural diagram of the vacuum cleaner described herein;

[0037] Figure 5 for Figure 1 Another exploded view of the vacuum cleaner described herein;

[0038] Figure 6 for Figure 1 A partial cross-sectional structural diagram of the vacuum cleaner described herein;

[0039] Figure 7 for Figure 1 A schematic diagram of the structure of one embodiment of the rotating component;

[0040] Figure 8 for Figure 7 A structural schematic diagram of the rotating component from another perspective.

[0041] Explanation of icon numbers:

[0042] 100-Dust collection equipment; 1-Dust collection body; 2-Dust cup; 21-Boss; 22-Air inlet; 3-Separation device; 31-Upper mounting plate; 311-Flange; 32-Lower mounting plate; 33-Filter paper; 4-Suction device; 5-Rotating component; 51-First connecting end; 52-Second connecting end; 53-Blade; 6-Bearing structure; 61-Bearing; 62-Locking fastener; 7-Air duct.

[0043] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0046] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0047] This utility model provides a vacuum cleaner device 100. For details, please refer to... Figure 1 , Figure 2 and Figure 5 In this embodiment, the vacuum cleaner 100 includes a vacuum body 1, a dust cup 2, a separation device 3, a suction device 4, and a rotating component 5. The dust cup 2 is disposed on the vacuum body 1 and has an air inlet 22. The separation device 3 is fixed on the vacuum body 1 and is at least partially located inside the dust cup 2. The suction device 4 is disposed on the vacuum body 1, and the suction device 4 allows airflow to enter the dust cup 2 from the air inlet 22 and be separated by the separation device 3. The separated clean airflow flows out from the air outlet of the separation device 3 and then enters the suction device 4. The rotating component 5 is rotatably disposed inside the dust cup 2 and at least covers the outer periphery of the portion of the separation device 3 located inside the dust cup 2. The rotating component 5 rotates under the action of the airflow entering the dust cup 2 from the air inlet 22.

[0048] In this embodiment, the suction device 4 generates a suction airflow, allowing external dirt to enter the dust cup 2 through the air inlet 22 under the action of the airflow. The dirt is then separated by the separation device 3 within the dust cup 2, allowing it to remain inside the dust cup 2. The separated clean airflow flows from the outlet of the separation device 3 to the suction device 4 and is discharged through the suction device 4. Furthermore, a rotating component 5 is installed inside the dust cup 2, covering the outside of the separation device 3. The rotating component 5 is driven to rotate by the airflow entering the dust cup 2. The rotating component 5 can partially block the dirt sucked into the dust cup 2, especially filamentous materials. When the rotating component 5 rotates, since the rotation direction of the rotating component 5 is consistent with the airflow direction, filamentous materials are less likely to get tangled on the rotating component 5 and the separation device 3, and are more likely to fall into the dust cup 2. This makes the separation device 3 less likely to get clogged, which is equivalent to cleaning the outer surface of the separation device 3. Moreover, no additional drive component is needed to drive the rotating component 5, making the structure simpler and the cost lower.

[0049] The vacuum cleaner body 1 is generally cylindrical in shape, with a handle at one axial end for easy gripping. The dust cup 2 is located at the other axial end of the vacuum cleaner body 1. When the vacuum cleaner body 1 is in its normal position, the end with the handle is the upper end, the dust cup 2 is the lower end, and the separating device 3 and the rotating component 5 are both located inside the dust cup 2. Preferably, the rotation axis of the rotating component 5 is aligned with the axial direction of the dust cup 2. Unless otherwise specified, all descriptions of orientations in this invention are based on the above description.

[0050] Preferably, the dust cup 2 is generally cylindrical, and its upper end is open to connect with the vacuum cleaner body 1. In one embodiment, the bottom of the dust cup 2 may be closed, and the air inlet 22 is formed on the peripheral side of the dust cup 2, so that air enters from the peripheral side of the dust cup 2, causing the airflow to flow along the circumference of the rotating member 5 to drive the rotating member 5 to rotate.

[0051] Furthermore, combined Figure 1 and Figure 2 As shown, a boss 21 protrudes from the outer peripheral side of the dust cup 2. The air inlet 22 penetrates the boss 21 along the tangential direction of the peripheral side of the dust cup 2 to communicate with the inner cavity of the dust cup 2. Figure 2 The dashed arrow in the middle indicates the rotation direction of the rotating part 5, so that after the airflow enters the dust cup 2 from the air inlet 22, it can flow more tangentially along the circumferential side of the rotating part 5, thereby better driving the rotating part 5 to rotate.

[0052] In another embodiment, combined Figure 3 As shown, the dust cup 2 has a first end and a second end that are arranged opposite to each other along the axial direction of the rotating member 5. The first end of the dust cup 2 is connected to the dust collection body 1, and the air inlet 22 is located at the second end of the dust cup 2 so that air can enter through the bottom of the dust cup 2 and drive the rotating member 5 to rotate.

[0053] Furthermore, the airflow direction entering the dust cup 2 from the air inlet 22 is parallel to the axis of the rotating member 5, forming an airflow along the axis of the rotating member 5. The airflow at one end of the axis of the rotating member 5 drives the rotating member 5 to rotate.

[0054] Moreover, such as Figure 4 As shown, the vacuum cleaner 100 also includes an air duct 7, at least a portion of which can extend into the dust cup 2 from the air inlet 22, and the portion of the air duct 7 extending into the dust cup 2 is coaxially arranged with the rotating member 5, so that the airflow can flow more evenly to the rotating member 5, and the rotating member 5 is more stable when rotating.

[0055] The separation device 3 is mainly used to separate the airflow containing dirt entering the dust cup 2, allowing the dirt to remain in the dust cup 2 while the clean airflow is separated and discharged. The separation device 3 can be configured as a filter, cyclone separator, or filter bag, among other options. The shape of the rotating component 5 can be adapted to the shape of the separation device 3. The rotating component 5 is rotatably fitted onto the outer periphery of the separation device 3, ensuring a more uniform fit between the rotating component 5 and the separation device 3, thus resulting in a more uniform airflow entering the separation device 3.

[0056] Preferably, combined with Figure 5 and Figure 6As shown, the separation device 3 includes an upper mounting plate 31, a lower mounting plate 32, and a filter paper 33 installed between the upper mounting plate 31 and the lower mounting plate 32. The filter paper 33 is the main filtration part of the separation device 3. The filter paper 33 is generally formed into a cone shape. The large end of the filter paper 33 faces upward to connect with the outlet of the upper mounting plate 31, and the small end of the filter paper 33 faces downward to abut against the lower mounting plate 32. The airflow can be filtered from the outside of the filter paper 33 as it passes through the filter paper 33, so that the clean airflow can enter the inner ring side of the filter paper 33 and flow through its upper end to the outlet on the upper mounting plate 31 to flow toward the suction device 4. The dirt will be separated on the outside of the filter paper 33.

[0057] It is understood that the rotating component 5 can be rotatably connected to at least one of the dust cup 2, the vacuum body 1, and the separating device 3, so that the rotating component 5 can rotate relative to the separating device 3. Preferably, the rotating component 5 is rotatably connected to the separating device 3, so that when the dust cup 2 is detached from the vacuum body 1, the rotating component 5 can still remain connected to the separating device 3. The disassembly and assembly of the dust cup 2 will not affect the rotating component 5 and the separating device 3, making the disassembly of the dust cup 2 more convenient and easier to clean.

[0058] Furthermore, when the rotation axis of the rotating component 5 is arranged in the vertical direction and aligned with the axial direction of the dust cup 2, specifically, the rotating component 5 surrounds the outer periphery of the filter paper 33, and both ends of the axial direction of the rotating component 5 are connected to the upper mounting plate 31 and the lower mounting plate 32 respectively, so that the rotating component 5 can rotate relative to the separating device 3. Preferably, the rotating component 5 is generally conical in shape, with the upper end of the rotating component 5 spaced around the outer periphery of the upper mounting plate 31 of the separating device 3, and the lower end of the rotating component 5 rotatably connected to the lower mounting plate 32 of the separating device 3 through the bearing structure 6, so that the rotating component 5 can be more stably mounted on the separating device 3, and the relative position between the rotating component 5 and the filter paper 33 can be better guaranteed. In this application, the vertical direction can be a direction that extends close to the vertical direction when the dust collection device is in an upright state.

[0059] Preferably, such as Figure 5As shown, the bearing structure 6 includes a bearing 61 and a locking fastener 62. The rotating member 5 is rotatably sleeved on the outer periphery of the separating device 3 via the bearing 61, and the locking fastener 62 is detachably fixed to the separating device 3 and abuts against the bottom of the bearing 61. The upper mounting plate 31 is approximately annular, with a flange 311 protruding from its bottom surface. The upper end of the filter paper 33 abuts against the bottom surface of the upper mounting plate 31 and is located inside the flange 311, so that the upper opening of the filter paper 33 communicates with the outlet of the upper mounting plate 31. The upper end of the rotating member 5 is circumferentially disposed on the outer periphery of the flange 311 and can rotate relative to the flange 311. The locking fastener 62 abuts against the bottom of the bearing 61 to restrict the downward movement of the bearing 61, allowing the entire rotating member 5 to be rotatably fixed to the separating device 3.

[0060] Furthermore, a stop portion protrudes from the inner ring side of the rotating component 5, abutting against the upper end of the bearing 61; the locking fastener 62 is screwed to the separating device 3, and the locking fastener 62 abuts against the bottom end of the bearing 61. This allows the bottom end of the rotating component 5 to be supported by the bearing 61, and the bottom end of the bearing 61 to be limited by the locking fastener 62. Moreover, the locking fastener 62 is connected to the separating device 3 by a screw connection, making the locking fastener easy to install and remove, and making it easy to assemble and disassemble the rotating component 5 from the separating device 3.

[0061] Specifically, for rotating component 5, in combination Figure 6 and Figure 7 As shown, the rotating component 5 includes a first connecting end 51 and a second connecting end 52 arranged opposite to each other along its axial direction, and a plurality of blades 53 connected between the first connecting end 51 and the second connecting end 52. At least one of the first connecting end 51 and the second connecting end 52 is rotatably connected to the separating device 3. The plurality of blades 53 are arranged at intervals along its circumference to cover the outer periphery of the separating device 3. Preferably, the first connecting end 51 surrounds the outer side of the flange 311 of the upper mounting plate 31, the second connecting end 52 is rotatably sleeved on the outer periphery of the lower mounting plate 32 through the bearing 61, and the plurality of blades 53 surround the outer periphery of the filter paper 33. The plurality of blades 53 can block dirt, especially filamentous matter. The airflow entering the dust cup 2 can blow towards the plurality of blades 53, driving the entire rotating component 5 to rotate, so that filamentous matter is not easily entangled on the rotating component 5 and the separating device 3.

[0062] Furthermore, along the circumference of the rotating member 5, multiple blades 53 are all inclined towards the same side. Preferably, the inclination direction of the multiple blades 53 is consistent with the flow direction of the airflow, so that after the airflow enters the dust cup 2, it can be better blown onto the surface of the blades 53, thereby improving the effect of driving the rotating member 5 to rotate.

[0063] Furthermore, each blade 53 has a windward and leeward surface arranged opposite each other along the circumference of the rotating member 5, and a first wall and a second wall connecting the periphery of the windward and leeward surfaces. The first wall is located close to the separating device 3, and the second wall is arc-shaped, such that the area of ​​the central region of the windward surface along the axial direction is larger than the area of ​​its two ends. After the airflow enters the dust cup 2, the airflow can flow more towards the central region of the windward surface to drive the rotating member 5 to rotate. Moreover, each blade 53 is pointed at both ends along the axial direction, and the area of ​​the windward surface gradually increases from the two ends towards the middle. This makes the wind-receiving area of ​​each blade 53 larger, while reducing the area of ​​the ineffective driving area of ​​the blade 53, thereby reducing the weight of the blade 53 and making the rotating member 5 lighter and easier to rotate.

[0064] Along the axial direction of the rotating member 5, each windward surface is inclined, and the windward surface can be fully exposed from the bottom end of the rotating member 5 and on the orthogonal projection along the axial direction of the rotating member 5. When the air inlet 22 is located at the bottom of the dust cup 2, the airflow can flow axially toward the rotating member 5. The area of ​​the windward surface of each blade 53 is larger in the axial direction, so the area where the airflow can exert force is larger, which is more conducive to the rotation of the rotating member 5.

[0065] Each blade 53 can be arranged in one of the above-mentioned ways, or a combination of the above-mentioned ways of arranging each blade 53, so that the blade 53 can be better affected by the airflow when the air is introduced from the side or bottom, thereby driving the entire rotating part 5 to rotate.

[0066] Combination Figure 7 and Figure 8 As shown, when the air inlet 22 is located on the peripheral side of the dust cup 2, the angle θ between the airflow direction entering the dust cup 2 from the air inlet 22 and the windward surface of each corresponding blade 53 can be 70° to 160°. Preferably, the airflow direction entering the dust cup 2 from the air inlet 22 is perpendicular to the windward surface of each blade 53, which has the best driving effect on the blades 53. The angle θ is the angle between the projection direction of the airflow direction on the cross section perpendicular to the axial direction of the rotating member 55 and the tangent direction of the windward surface of the blade 53 on that cross section.

[0067] This utility model also provides a vacuum cleaner 100, which includes a vacuum body 1, a dust cup 2, a separation device 3, a suction device 4, and a rotating component 5. In this embodiment, the vacuum body 1, dust cup 2, separation device 3, suction device 4, and rotating component 5 can be the same as those in the above embodiments, or they can be different from those in the above embodiments. Specifically, one end of the dust cup 2 along its axial direction is connected to the dust collection body 1, and the other end of the dust cup 2 along its axial direction is provided with an air inlet 22; the separation device 3 is fixed on the dust collection body 1 and is at least partially located inside the dust cup 2; the suction device 4 is provided on the dust collection body 1, and the suction device 4 allows airflow to enter the dust cup 2 from the air inlet 22 and be separated by the separation device 3, and the separated clean airflow flows out from the air outlet of the separation device 3 and then enters the suction device 4; the rotating part 5 is provided inside the dust cup 2 and rotates around the outer periphery of the separation device 3. The rotating part 5 rotates under the action of the airflow entering the dust cup 2 from the air inlet 22, thereby reducing the risk of dirt, especially filamentous matter, getting tangled on the outer surface of the separation device 3, making the separation device 3 easier to clean, and eliminating the need for additional drive components to drive the rotating part 5 to rotate, thus reducing the cost of the vacuum cleaner 100.

[0068] In one embodiment, the vacuum cleaner 100 also includes a floor brush structure connected to the air inlet 22. The floor brush structure contacts the surface to be cleaned (such as the ground), and the dust is sucked up through the suction port on the floor brush structure and enters the dust cup 2 through the air inlet 22. The distance between the air inlet 22 and the floor brush structure is shorter, the loss of suction airflow is less, so the suction force is greater and the cleaning effect is better.

[0069] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A dust extraction device (100), characterized in that, The dust collection device (100) comprises: a dust collection main body (1); a dust cup (2) provided on the dust collection main body (1) and having an air inlet (22); a separation device (3) fixed on the dust collection main body (1) and at least partially located in the dust cup (2); a suction device (4) provided on the dust collection main body (1), the suction device (4) allowing air flow to enter the dust cup (2) from the air inlet (22) and to be separated by the separation device (3), and the separated clean air flow to enter the suction device (4) after flowing out of the air outlet end of the separation device (3); a rotating member (5) rotatably provided in the dust cup (2) and at least partially covering the outer circumferential side of the part of the separation device (3) located in the dust cup (2), the rotating member (5) rotating under the action of the air flow entering the dust cup (2) from the air inlet (22).

2. The dust extraction device (100) according to claim 1, characterized in that The dust cup (2) is provided in a cylindrical shape, and the air inlet (22) is formed on the circumferential side of the dust cup (2).

3. The dust extraction device (100) according to claim 2, characterized in that A boss (21) is protrudingly provided on the outer circumferential side of the dust cup (2), and the air inlet (22) penetrates the boss (21) in the tangential direction of the circumferential side of the dust cup (2) to communicate with the inner cavity of the dust cup (2).

4. The dust extraction device (100) according to claim 1, characterized in that The dust cup (2) is provided in a cylindrical shape and has a first end and a second end oppositely arranged along the axial direction of the rotating member (5), the first end of the dust cup (2) is connected with the dust collection main body (1), and the air inlet (22) is provided at the second end of the dust cup (2).

5. The dust extraction device (100) according to claim 4, characterized in that The direction of the air flow entering the dust cup (2) from the air inlet (22) is parallel to the axial direction of the rotating member (5).

6. The dust extraction device (100) according to claim 4, characterized in that The dust collection device (100) further comprises an air guide pipe (7), at least a part of the air guide pipe (7) can extend into the dust cup (2) from the air inlet (22), and the part of the air guide pipe (7) extending into the dust cup (2) is coaxially arranged with the rotating member (5).

7. The dust extraction device (100) according to claim 1, characterized in that The rotating member (5) is rotatably connected to the separation device (3).

8. The dust extraction device (100) according to claim 7, characterized in that The rotating shaft of the rotating member (5) is arranged in the up-down direction, the upper end of the rotating member (5) is arranged around the outer circumferential side of the separation device (3), and the lower end of the rotating member (5) is rotatably connected to the separation device (3) through a bearing structure (6).

9. The dust extraction device (100) according to claim 8, characterized in that The bearing structure (6) comprises a bearing (61) and a locking member (62), the rotating member (5) is rotatably sleeved on the outer circumferential side of the separation device (3) through the bearing (61), and the locking member (62) is detachably fixed on the separation device (3) and abuts against the bottom of the bearing (61).

10. The dust extraction device (100) according to claim 9, characterized in that The inner ring side of the rotating member (5) protrudingly has a stop portion abutting against the upper end of the bearing (61); The locking member (62) is screwed with the separation device (3), and the locking member (62) abuts against the bottom end of the bearing (61).

11. The dust extraction device (100) according to claim 1, characterized in that The rotating member (5) comprises a first connecting end (51) and a second connecting end (52) oppositely arranged along the axial direction thereof, and a plurality of blades (53) connected between the first connecting end (51) and the second connecting end (52), at least one of the first connecting end (51) and the second connecting end (52) is rotationally connected with the separating device (3), and the plurality of blades (53) are arranged at intervals along the circumferential direction thereof to cover the outer circumferential side of the separating device (3).

12. The dust extraction device (100) according to claim 11, characterized in that In the circumferential direction of the rotating member (5), the plurality of blades (53) are all inclinedly arranged towards the same side, and the included angle θ between the air flow direction entering the dust cup (2) from the air inlet (22) and the windward surface of each corresponding blade (53) is 70°-160°.

13. The dust extraction device (100) according to claim 12, characterized in that Each blade (53) has a windward surface and a leeward surface oppositely arranged along the circumferential direction of the rotating member (5), and a first wall surface and a second wall surface connected between the windward surface and the leeward surface of the circumferential side, the first wall surface is arranged close to the separating device (3), and the second wall surface is arranged in an arc shape so that the area of the middle region of the windward surface in the axial direction is larger than that of the two ends.

14. The dust extraction device (100) according to claim 13, characterized in that In the axial direction of the rotating member (5), each windward surface is arranged in an inclined manner; and in the axial direction of the rotating member (5), the windward surface can be completely exposed in the orthographic projection from the bottom end of the rotating member (5).

15. A dust extraction device (100), characterized in that Comprise: A dust collection main body (1); A dust cup (2) connected with the dust collection main body (1) at one end thereof along the axial direction, the dust cup (2) is provided with an air inlet (22) at the other end thereof along the axial direction; A separating device (3) fixed to the dust collection main body (1) and at least partially located in the dust cup (2); A suction device (4) provided on the dust collection main body (1), the suction device (4) allows air flow to enter the dust cup (2) from the air inlet (22) and to be separated by the separating device (3), and the separated clean air flow flows out of the air outlet end of the separating device (3) and enters the suction device (4); A rotating member (5) provided in the dust cup and rotationally arranged on the outer circumferential side of the separating device (3), the rotating member (5) is rotated under the action of the air flow entering the dust cup (2) from the air inlet (22).

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