Dust extraction device

Abstract

This utility model discloses a vacuum cleaner. The vacuum cleaner includes a vacuum body, a dust cup assembly, and a dust scraping assembly. The dust cup assembly includes a dust cup and a filter structure, with the dust cup having a dust cup wall. The dust scraping assembly includes a scraper, an operating component, and a transmission component connecting the scraper and the operating component. At least a portion of the scraper can contact the filter structure during movement. At least a portion of the operating component is located outside the dust cup and is manipulated to move, driving the transmission component to move and thus moving the scraper. The transmission component is movably arranged along the extension direction of the dust cup wall, and at least a portion of the projection of the transmission component coincides with the projection of the dust cup wall along this direction. At least a portion of the transmission component is located radially inner to the outer peripheral surface of the dust cup. This utility model achieves higher cleaning efficiency, better ensures the stability of the dust cup, extends the service life of the entire vacuum cleaner, and maintains better vacuuming efficiency even while achieving self-cleaning of the filter structure.

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, such as vacuum cleaners, uses a suction device to draw dirt into the dust cup through the suction port, where it is filtered by the internal filter structure. The filtered dirt is then retained in the dust cup, while the clean airflow returns to the suction device and is expelled from the vacuum cleaner, creating a circulating airflow. The filter structure, such as a filter cartridge, separates dirt from the airflow through multiple pores on its circumference. Heavier dirt falls into the dust collection chamber of the dust cup under its own weight, while some dirt adheres to the outer circumference of the filter cartridge. Over time, this accumulated dirt can clog the pores, affecting the filtration efficiency. Cleaning the outside of the filter cartridge requires manual cleaning, which is not user-friendly and necessitates disassembling and reassembling the dust cup. Repeated disassembly and reassembly can lead to unstable or even failed connections, impacting the overall lifespan of the vacuum cleaner. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a vacuum cleaner that solves the problem that it is inconvenient to clean the filter structure itself in traditional vacuum cleaners, and that traditional cleaning methods will affect the connection stability of the dust cup and even affect the service life of the entire vacuum cleaner.

[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 assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure.

[0007] The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component;

[0008] The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement.

[0009] The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move;

[0010] The transmission member is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the transmission member along the extension direction of the dust cup wall, at least a portion of the projection of the transmission member coincides with the projection of the dust cup wall, and at least a portion of the transmission member is located radially inside the outer peripheral surface of the dust cup.

[0011] Optionally, the dust cup wall extends in a direction parallel to the axial direction of the filter structure; both the dust scraper and the transmission component have a travel distance along the axial direction of the filter structure.

[0012] Optionally, the transmission component includes:

[0013] A sliding rod, one end of which is connected to the operating component;

[0014] A transmission rod, one end of which is connected to the other end of the sliding rod, and the other end of which is connected to the scraper.

[0015] The operation component is moved, which in turn moves the sliding rod and drives the transmission rod to move the scraper component along the axial direction of the filter structure.

[0016] Optionally, along the axial direction of the filter structure, the projection of the drive rod at least partially coincides with the projection of the dust cup wall, and at least a portion of the drive rod is located inside the outer peripheral surface of the dust cup.

[0017] Optionally, the projections of the sliding rod and the transmission rod at least partially overlap on the orthogonal projection along the radial direction of the filter structure.

[0018] Optionally, the dust cup wall extends in a direction parallel to the axial direction of the filter structure; the sliding rod has a travel along the axial direction of the filter structure, and the projection of the sliding rod is completely within the projection of the dust cup wall on the orthogonal projection along the axial direction of the filter structure.

[0019] Optionally, a portion of the dust cup wall is arranged to bulge outward along the radial direction of the filter structure to form an outer expansion wall, and the projection of the sliding rod is completely located within the projection of the outer expansion wall on the orthogonal projection along the axial direction of the filter structure.

[0020] Optionally, the outer expansion wall has a transition section connected to the wall body of the dust cup wall. The transition section extends radially along the filter structure and has an opening. The sliding rod slides through the opening, such that one end of the sliding rod is located outside the dust cup and the other end extends into the inside of the dust cup to connect with the transmission rod.

[0021] Optionally, the transmission rod has a rod body and a first connecting section and a second connecting section located at both ends of the rod body;

[0022] The rod body and the sliding rod are stacked and spaced apart along the radial direction of the filter structure. The first connecting section is bent to connect with the sliding rod, and the second connecting section extends inward along the radial direction of the filter structure to connect with the scraper.

[0023] Optionally, along the axial direction of the filter structure, at least a portion of the orthographic projection of the rod body coincides with the orthographic projection of the dust cup wall, and at least a portion of the rod body is located radially inside the inner circumferential surface of the dust cup.

[0024] Optionally, a portion of the dust cup wall is thinned outward to form an installation wall, and the thinned space corresponding to the installation wall forms a first receiving cavity, in which the rod body is received;

[0025] The transition section is connected to the mounting wall, and the space of the outward expansion wall relative to the dust cup wall is used to form a second receiving cavity. The sliding rod can move from the opening into the second receiving cavity.

[0026] Optionally, the dust cup has a dust discharge port at one end along its axial direction, and the dust scraper has a first dust scraping position close to the dust discharge port and a second dust scraping position away from the dust discharge port.

[0027] When in the first scraping position, the sliding rod is located inside the second accommodating cavity; when in the second scraping position, the sliding rod is located outside the second accommodating cavity.

[0028] Optionally, one end of the dust cup is provided with a dust discharge port, and the scraper has a first scraping position near the dust discharge port and a second scraping position away from the dust discharge port; the operating element includes:

[0029] An operating panel is located outside the dust cup and connected to the sliding rod, with an operating handle protruding from one side of the operating panel;

[0030] A guide rod is disposed outside the dust cup and extends along the axial direction of the filter structure;

[0031] The first elastic element is sleeved outside the guide rod and abuts against the operating plate and the dust cup;

[0032] The operating plate is slidably sleeved on the guide rod. The operating handle is subjected to an external force to drive the operating plate to move along the guide rod and drive the sliding rod to move together to the first dust-scraping position. When the external force on the operating handle is removed, the sliding rod can be driven to return from the first dust-scraping position to the second dust-scraping position under the elastic restoring force of the first elastic element.

[0033] Optionally, the operating component further includes a decorative cover, which is disposed outside the dust cup and covers the outside of the operating plate. The decorative cover has an elongated hole, through which the operating handle can be exposed. The elongated hole extends along the axial direction of the filter structure, wherein the length of the elongated hole is greater than or equal to the travel distance of the dust scraper between the first dust scraping position and the second dust scraping position.

[0034] Optionally, the dust cup includes a dust cup cavity, a dust cup cover, and a locking structure. The dust discharge port is located at one end of the axial direction of the dust cup cavity. The dust cup cover is movably disposed on the dust cup cavity to open and close the dust discharge port. The locking structure has a locked state in which the dust cup cover is locked to close the dust discharge port, and an unlocked state in which the dust cup cover is unlocked to open the dust discharge port.

[0035] The vacuum cleaner also includes an unlocking component. When moving from the second dust-scraping position to the first dust-scraping position, at least a portion of the operating component can act on the unlocking component and drive the unlocking component to move to act on the locking structure, so that the locking structure switches from the locked state to the unlocked state.

[0036] Optionally, the locking structure includes a locking hook rotatably disposed on the outside of the dust cup and a buckle disposed on the dust cup cover. The locking hook has a rotating part rotatably connected to the dust cup, a hook part located on one radial side of the rotating part, and a trigger part located on the other radial side of the rotating part.

[0037] The dust cup is provided with a guide plate on its outer side. The unlocking member is slidably engaged on the guide plate along the axial direction of the filter structure. One end of the unlocking member extends toward the direction of the locking hook. When in the first dust scraping position, the unlocking member can press against the trigger part to drive the locking hook to rotate, so that the hook can disengage from the buckle.

[0038] Optionally, the scraper includes:

[0039] A scraper bracket is arranged around the outer periphery of the filter structure and connected to the transmission rod;

[0040] The scraper rubber ring is disposed on the scraper bracket and is fitted to the outer peripheral surface of the filter structure;

[0041] The movement of the transmission rod drives the scraper bracket to move axially along the filter structure, causing the scraper rubber ring to move along the outer peripheral surface of the filter structure.

[0042] This utility model also provides a vacuum cleaner, including:

[0043] The main body of the vacuum cleaner;

[0044] A dust cup assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure.

[0045] The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component;

[0046] The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement.

[0047] The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move;

[0048] The transmission component is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the transmission component along the extension direction of the dust cup wall, at least part of the projection of the transmission component coincides with the projection of the dust cup wall, and at least part of the transmission component is located radially inside the inner circumferential surface of the dust cup.

[0049] This utility model also provides a vacuum cleaner, including:

[0050] The main body of the vacuum cleaner;

[0051] A dust cup assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure.

[0052] The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component;

[0053] The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement.

[0054] The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move;

[0055] The transmission member is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the transmission member along the extension direction of the dust cup wall, the projection of the transmission member at least partially coincides with the projection of the dust cup wall, and at least part of the transmission member is located on the radially outer side of the inner peripheral surface of the dust cup and at least part of the outer peripheral surface of the dust cup.

[0056] The technical solution provided by this utility model has the following beneficial effects:

[0057] The dust collection device provided by this utility model includes a dust collection body, a dust cup assembly, and a dust scraping assembly. The dust cup assembly includes a dust cup and a filter structure, and the dust cup can be used to store the dirt retained after filtration by the filter structure. The dust scraping assembly includes a scraper, an operating component, and a transmission component. At least a portion of the operating component is exposed on the outside of the dust cup. The operating component can be operated manually or by a driving component to move, thereby driving the transmission component to move, which in turn drives the scraper to move. This allows the scraper to move between the inner circumferential surface of the dust cup and the outer circumferential surface of the filter structure, and at least a portion of the scraper can contact the filter structure during movement, thereby scraping off the dirt attached to the outer circumference of the filter structure. This achieves self-cleaning of the filter structure, eliminating the need for manual disassembly of the dust cup for cleaning, resulting in higher cleaning efficiency, better dust cup stability, and extended service life of the entire dust collection device. Furthermore, the scraper and the operating components move through a transmission component, which extends along the dust cup wall. The projection of the transmission component coincides with the projection of the dust cup wall in at least a portion of the direction of extension of the dust cup wall. At least a portion of the transmission component is located radially inside the outer circumferential surface of the dust cup, allowing the transmission component to occupy at least a portion of the dust cup wall thickness. The space occupied by the transmission component inside and outside the dust cup is reduced, which does not affect the storage capacity of the dust cup and also reduces the impact of the transmission component on the airflow inside the dust cup. This ensures better dust collection efficiency of the vacuum cleaner even with the addition of a scraper component to achieve self-cleaning of the filter structure. Attached Figure Description

[0058] 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.

[0059] Figure 1 This is a schematic diagram of the structure of an embodiment of a vacuum cleaner provided by this utility model;

[0060] Figure 2for Figure 1 An exploded view of the vacuum cleaner described herein;

[0061] Figure 3 for Figure 1 A cross-sectional structural diagram of the vacuum cleaner described herein;

[0062] Figure 4 for Figure 1 A schematic diagram of the structure of the dust cup assembly and the scraper assembly (when the scraper is in the second scraping position);

[0063] Figure 5 for Figure 1 A schematic diagram of the structure of the dust cup assembly and the scraper assembly (when the scraper is in the first scraping position);

[0064] Figure 6 for Figure 4 A cross-sectional structural diagram of the dust cup assembly and the dust scraper assembly;

[0065] Figure 7 for Figure 4 Another cross-sectional structural diagram of the dust cup assembly and the dust scraper assembly;

[0066] Figure 8 for Figure 4 Another cross-sectional structural diagram of the dust cup assembly and the dust scraper assembly;

[0067] Figure 9 for Figure 1 Another cross-sectional structural diagram of the vacuum cleaner described herein.

[0068] Explanation of icon numbers:

[0069] 100-Vacuum cleaning equipment; 1-Vacuum cleaning body; 11-Main housing; 12-Suction device; 13-Handle structure; 14-Battery assembly; 2-Dust cup assembly; 21-Dust cup; 211-Dust cup wall; 2111-Outer expansion wall; 2111a-Transition section; 2111b-Opening; 2112-Mounting wall; 212-Dust cup cavity; 213-Dust cup cover; 214-Guide plate; 22-Filter structure; 221-Filter cartridge; 222-Cyclone separator; 23-Locking structure; 231-Locking hook; 2311-Rotating part; 231 2-Hook; 2313-Trigger; 232-Snap; 233-Second elastic element; 3-Scraping assembly; 31-Scraping component; 311-Scraping bracket; 312-Scraping rubber ring; 32-Operating component; 321-Operating panel; 3211-Operating handle; 322-Guide rod; 323-First elastic element; 324-Decorative cover; 3241-Elongated hole; 33-Transmission component; 331-Sliding rod; 332-Transmission rod; 3321-Rod body; 3322-First connecting section; 3323-Second connecting section; 4-Unlocking component.

[0070] 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

[0071] 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.

[0072] 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.

[0073] 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.

[0074] This utility model provides a vacuuming device 100, which can be configured as a vacuum cleaner, a vacuum cleaner, or a mite remover, etc. The following description will mainly use a vacuum cleaner as an example to illustrate the specific structure of the vacuuming device 100; other devices can be adapted accordingly.

[0075] Specifically, please refer to Figures 1 to 3In this embodiment, the vacuum cleaner 100 includes a vacuum body 1, a dust cup assembly 2, and a dust scraping assembly 3. The dust cup assembly 2 is disposed on the vacuum body 1 and includes a dust cup 21 and a filter structure 22 disposed within the dust cup 21. The dust cup 21 has a dust cup wall 211 circumferentially arranged along the filter structure 22. The dust scraping assembly 3 includes a scraper 31, an operating member 32, and a transmission member 33 connecting the scraper 31 and the operating member 32. The scraper 31 is configured to move between the inner circumferential surface of the dust cup 21 and the outer circumferential side of the filter structure 22, such that at least a portion of the scraper 31 can contact the filter structure 22 during movement. The operating member 32 is at least partially located outside the dust cup 21 and can be manipulated to move the transmission member 33 to move the scraper 31. The transmission member 33 is movably disposed along the extension direction of the dust cup wall 211. On the orthographic projection along the extension direction of the dust cup wall 211 where the transmission member 33 is located, at least a portion of the projection of the transmission member 33 coincides with the projection of the dust cup wall 211, and at least a portion of the transmission member 33 is located radially inside the outer peripheral surface of the dust cup 21.

[0076] In this embodiment, the dust cup 21 can be used to store the dirt retained after filtration by the filter structure 22. At least a portion of the operating member 32 is exposed on the outside of the dust cup 21. The operating member 32 can be operated manually or by a driving component to move, thereby driving the transmission member 33 to move, which in turn drives the scraper 31 to move. This allows the scraper 31 to move between the inner circumferential surface of the dust cup 21 and the outer circumferential side of the filter structure 22, and at least a portion of the scraper 31 can come into contact with the filter structure 22 during the movement, thereby scraping off the dirt attached to the outer circumference of the filter structure 22. This achieves self-cleaning of the filter structure 22, eliminating the need for manual disassembly of the dust cup 21 for cleaning, resulting in higher cleaning efficiency and better ensuring the stability of the dust cup 21, thus extending the service life of the entire vacuum cleaner 100. Furthermore, the scraper 31 and the operating component 32 are moved by a transmission component 33, which moves along the extension direction of the dust cup wall 211. At least part of the projection of the transmission component 33 coincides with the projection of the dust cup wall 211 along the extension direction of the dust cup wall 211, and at least part of the transmission component 33 is located radially inside the outer peripheral surface of the dust cup 21. This allows the transmission component 33 to occupy at least part of the wall thickness of the dust cup wall 211. The space occupied by the transmission component 33 inside the dust cup 21 and outside the dust cup 21 will be less. On the one hand, it will not affect the storage capacity of the dust cup 21, and on the other hand, it will have less impact on the airflow inside the dust cup 21. Even with the addition of the scraper component 3 to achieve self-cleaning of the filter structure 22, the dust collection efficiency of the vacuum cleaner 100 can still be better guaranteed.

[0077] It should be noted that the inner circumferential surface of the dust cup 21 refers to the surface located at the innermost side of the dust cup wall 211 and facing inwards from the dust cup 21, while the outer circumferential surface of the dust cup 21 refers to the surface located at the outermost side of the dust cup wall 211 and facing outwards from the dust cup 21. Here, "inner" and "outer" are relative to the dust cup 21 itself; the center of the dust cup 21 is considered "inner," and the area furthest from the center is considered "outer." The radially inner side of the outer circumferential surface refers to the area located closer to the center of the dust cup 21 than the outer circumferential surface, along a direction perpendicular to the outer circumferential surface. Similarly, the radially outer side of the inner circumferential surface refers to the area located further away from the center of the dust cup 21 than the inner circumferential surface, along a direction perpendicular to the inner circumferential surface.

[0078] The filter structure 22 is located inside the dust cup 21 and can form a cyclone airflow inside the dust cup 21. The extension direction of the cyclone airflow around the center of rotation is the axial direction of the filter structure 22. The extension direction of the dust cup wall 211 is completely or approximately parallel to the axial direction of the filter structure 22, or the extension direction of the dust cup wall 211 is inclined relative to the axial direction of the filter structure 22.

[0079] When the dust cup wall 211 is inclined relative to the axial direction of the filter structure 22, for example, when the axial direction of the filter structure 22 extends vertically, the dust cup wall 211 is inclined vertically, and the extension directions of each side of the dust cup wall 211 are inconsistent. The dust cup wall 211 where the transmission member 33 is located is set to extend along a first direction. The orthographic projection along the extension direction of the dust cup wall 211 where the transmission member 33 is located is the projection onto a plane perpendicular to the dust cup wall 211 where the transmission member 33 is located, which is also the projection onto a plane perpendicular to the first direction. This ensures that the transmission member 33 and the dust cup wall 211 at least partially overlap, and the transmission member 33 occupies a portion of the wall thickness of the dust cup wall 211, thereby reducing the space occupied by the transmission member 33 inside the dust cup 21. This allows for a larger storage space in the dust cup 21 while reducing the impact of the transmission member 33 on the airflow inside the dust cup 21.

[0080] Among them, combined Figures 1 to 3 As shown, the vacuum cleaner body 1 includes, but is not limited to, a main housing 11, a suction device 12 disposed within the main housing 11, a handle structure 13, and a battery assembly 14. The main housing 11 is generally cylindrical, and the suction device 12 is disposed within the main housing 11. The suction device 12 can be configured as a fan. The handle structure 13 is connected to one side of the main housing 11, the battery assembly 14 is disposed within the handle structure 13, and the dust cup 21 is connected to the other side of the main housing 11. When the vacuum cleaner body 1 is operating normally, the dust cup 21 is located below the main housing 11, and the main housing 11 is axially arranged in the vertical direction. Unless otherwise specified, all descriptions of orientation in this utility model shall be taken as above.

[0081] Preferably, the dust cup 21 is also generally cylindrical, and is coaxially arranged with the main housing 11. The dust cup 21 includes a dust cup cavity 212 and a dust cup cover 213. A dust discharge port is provided at the bottom end of the dust cup cavity 212, and the dust cup cover 213 is movably disposed on the dust cup cavity 212 to open or close the dust discharge port. When the dust is full, the dust discharge port can be opened to discharge the dust. The vacuum cleaner 100 also includes a suction pipe, which is located on one radial side of the dust cup 21 and connected to the dust cup 21. The suction pipe has a downward-facing suction port. When the vacuum cleaner 100 is cleaning, external dirt can enter the suction pipe through the suction port and be guided into the dust cup 21 through the suction pipe.

[0082] like Figure 3 As shown, the filter structure 22 includes a filter cylinder 221 and a cyclone separator 222 disposed inside the filter cylinder 221. The filter cylinder 221 is generally axial-flow cylindrical and has multiple filter holes on its peripheral wall. The airflow containing dirt entering the dust cup 21 can form a rotating airflow around the outer periphery of the filter cylinder 221 under the action of the cyclone separator 222 and flow towards the inner side of the filter cylinder 221. A portion of the dirt is retained in the primary dirt storage chamber of the dust cup 21 by the separation action of the multiple filter holes, while the airflow with a small amount of dirt enters the inner side of the filter cylinder 221 to enter the cyclone separator 222 for secondary separation. After the airflow is separated by the cyclone separator 222, the remaining dirt falls from the dust collection end of the cyclone separator 222 into the secondary dirt storage chamber, while the clean airflow flows from the air outlet end of the cyclone separator 222 towards the suction device 12. The filter structure 22 can better separate dirt and store it in the dust cup 21, allowing external dirt to be better drawn into the vacuum cleaner 100, resulting in better cleaning performance. Preferably, the filter cartridge 221 and the dust cup 21 are coaxially arranged, making the airflow more uniform within the dust cup 21 and improving the filtration effect.

[0083] Since the filter cartridge 221 mainly performs primary filtration, a large amount of dirt can be separated through it. The filter cartridge 221 comes into contact with a large amount of dirt, which easily accumulates on its outer peripheral wall. Therefore, the scraper assembly 3 is mainly used to clean the outer peripheral wall of the filter cartridge 221 to prevent clogging.

[0084] Specifically, in combination Figure 3 and Figure 6As shown, the scraper 31 includes a scraper bracket 311 and a scraper rubber ring 312. The scraper bracket 311 surrounds the outer periphery of the filter structure 22 and is connected to the transmission component 33. The scraper rubber ring 312 is disposed on the scraper bracket 311 and conforms to the outer periphery of the filter structure 22. When the operating component 32 is moved by an external force, it can drive the transmission component 33 to move, thereby causing the scraper bracket 311 to move axially along the filter structure 22 under the action of the transmission component 33, so that the scraper rubber ring 312 moves along the outer periphery of the filter structure 22, and scrapes away the dirt on the outside of the filter cylinder 221 through the scraper rubber ring 312.

[0085] The scraper bracket 311 is roughly circular in shape and surrounds the outer periphery of the filter cartridge 221. The scraper bracket 311 is made of a rigid material to support the movement of the scraper rubber ring 312. The scraper rubber ring 312 is made of a soft material, allowing for closer contact with the filter cartridge 221, resulting in better cleaning performance and preventing scratches to the filter cartridge 221.

[0086] Since the scraper 31 is located inside the dust cup 21 and the operating component 32 is located outside the dust cup 21, at least a portion of the transmission component 33 is located inside the outer peripheral surface of the dust cup 21. The transmission component 33 can occupy at least a portion of the wall thickness of the dust cup wall 211, resulting in a smaller area inside the dust cup 21 and not affecting the storage space of the dust cup 21. Alternatively, if at least a portion of the transmission component 33 is located outside the inner peripheral surface of the dust cup 21, and the transmission component 33 can occupy at least a portion of the wall thickness of the dust cup wall 211, it can occupy less space outside the dust cup 21 and not affect the overall volume of the dust cup assembly 2. Alternatively, at least a portion of the transmission component 33 may be located on the outer side of the inner peripheral surface of the dust cup 21 and at least a portion may be located on the inner side of the outer peripheral surface of the dust cup 21. By occupying the wall thickness space of the dust cup wall 211, the transmission component 33 uses less space in other areas, which not only saves space but also has less impact on the storage and airflow inside the dust cup 21 and does not increase the volume of the entire vacuum cleaner 100.

[0087] Preferably, the transmission member 33 is disposed on the dust cup wall 211 and can move at least along the extension direction of the dust cup wall 211, so that the transmission member 33 will not affect the interior of the dust cup 21 when stationary or moving. Moreover, the transmission member 33 can generate at least a axial movement along the filter cylinder 221, thereby driving the dust scraper 31 to move along the axial direction of the filter cylinder 221.

[0088] In one embodiment, the dust cup wall 211 may be inclined along the axial direction of the filter cylinder 221. For example, the inner diameter of the dust cup wall 211 may be gradually widened in the top-to-bottom direction to guide the separated dirt toward the dust discharge port for easy dust discharge. A portion of the transmission member 33 can move along the extension direction of the dust cup wall 211, thereby driving the scraper 31 to move axially along the filter cylinder 221 to scrape dust; simultaneously, another portion of the transmission member 33 can extend or retract radially along the filter cylinder 221 to ensure reliable connection with the scraper 31. For example, the transmission member 33 may include a moving rod and a telescopic rod. The moving rod is connected to the operating member 32 and can move up and down along the dust cup wall 211, while the telescopic rod connects the moving rod and the scraper bracket 311 and has a radial extension / retraction stroke along the filter cylinder 221. When the moving rod is driven to move downwards along the dust cup wall 211 by the moving operating component 32, the telescopic rod and the dust scraper 31 move together. At the same time, the telescopic rod can extend when the radial distance between the dust cup wall 211 and the filter cartridge 221 increases. Conversely, the telescopic rod can retract when the moving rod moves upwards.

[0089] In another embodiment, such as Figure 6 As shown, the dust cup wall 211 extends parallel to the axial direction of the filter structure 22, and extends vertically to ensure that the radial distance between the filter cylinder 221 and the dust cup wall 211 is consistent throughout. Both the scraper 31 and the transmission component 33 have a travel along the axial direction of the filter structure 22. The transmission component 33 reciprocates along the axial direction of the filter cylinder 221, driving the scraper 31 to move along with it, scraping away dirt from the outside of the filter cylinder 221 through reciprocating friction. The reciprocating movement of the scraper 31 can be achieved simply by the up-and-down movement of the transmission component 33, simplifying its structure.

[0090] Preferably, in the orthogonal projection along the axial direction of the filter structure 22, at least a portion of the projection of the transmission member 33 coincides with the projection of the dust cup wall 211, that is, at least a portion of the transmission member 33 is located inside the dust cup wall 211, so as to form an accommodating space for the transmission member 33 by the partial thinning and / or expansion of the dust cup wall 211.

[0091] Specifically, for transmission component 33, in combination Figure 7 and Figure 8As shown, the transmission component 33 includes a sliding rod 331 and a transmission rod 332. One end of the sliding rod 331 is connected to the operating component 32; one end of the transmission rod 332 is connected to the other end of the sliding rod 331, and the other end of the transmission rod 332 is connected to the dust scraper 31. The operating component 32 is moved, causing the sliding rod 331 to move along with it, and driving the transmission rod 332 to move the dust scraper 31 along the axial direction of the filter structure 22. This allows the force exerted by the operating component 32 on the outside of the dust cup 21 to be transmitted through the sliding rod 331 to the transmission rod 332, and then through the transmission rod 332 to the dust scraper 31, causing the dust scraper 31 to have an axial stroke along the filter cartridge 221, thus cleaning the outer circumferential surface of the filter cartridge 221.

[0092] The sliding rod 331 and the transmission rod 332 can be directly or indirectly fixedly connected, so that the sliding rod 331 can drive the transmission rod 332 to move together when it moves.

[0093] Preferably, the sliding rod 331 and the transmission rod 332 are integrally formed, which makes the structure simpler and eliminates the need for multiple force conversions, resulting in less loss of force acting on the operating component 32, thus saving the user effort during operation.

[0094] When the dust cup wall 211 is parallel to the axial direction of the filter structure 22, at least a portion of the projection of the drive rod 332 coincides with the projection of the dust cup wall 211 along the axial direction of the filter structure 22, and at least a portion of the drive rod 332 is located inside the outer peripheral surface of the dust cup 21. Since the drive rod 332 is located closer to the center of the dust cup 21 than the sliding rod 331, coinciding at least a portion of the drive rod 332 with the dust cup wall 211 allows the drive rod 332 to be further away from the center of the dust cup 21, thus occupying less or no internal space of the dust cup 21, thereby reducing the impact of the drive rod 332 on the airflow inside the dust cup 21.

[0095] Furthermore, in the radial projection along the filter structure 22, the projections of the sliding rod 331 and the transmission rod 332 at least partially overlap. Since the sliding rod 331 and the transmission rod 332 are at least partially overlapped in the radial direction along the filter cylinder 221, less axial space is required when the sliding rod 331 and the transmission rod 332 move axially along the filter cylinder 221, and the moving space of the sliding rod 331 and the transmission rod 332 is larger. This allows the scraper 31 to better cover all areas of the outer circumferential surface of the filter cylinder 221, resulting in more thorough cleaning of the filter cylinder 221.

[0096] Moreover, in the orthogonal projection along the axis of the filter structure 22, the projection of the sliding rod 331 is completely located within the projection of the dust cup wall 211, so that the sliding rod 331 does not occupy the space outside the dust cup wall 211, the structure is more compact, and the overall volume of the vacuum cleaner 100 is also smaller.

[0097] In one embodiment, combined with Figure 7 and Figure 8 As shown, a portion of the dust cup wall 211 protrudes outward along the radial direction of the filter structure 22 to form an outer expansion wall 2111. Along the radial direction of the filter structure 22, the outer expansion wall 2111 is located outside the main body of the dust cup wall 211 and forms a step between it and the main body, thus enclosing a space that extends into the dust cup 21. In the orthographic projection along the axial direction of the filter structure 22, the projection of the sliding rod 331 is completely within the projection of the outer expansion wall 2111. The sliding rod 331 may be completely located within the space enclosed by the outer expansion wall 2111, or at least a portion of the sliding rod 331 may be located at the upper or lower end of the outer expansion wall 2111. This ensures that the sliding rod 331 remains aligned with the outer expansion wall 2111 during movement, without occupying other space, thus better preventing the sliding rod 331 from affecting the airflow within the dust cup 21 and better guaranteeing the dust collection efficiency of the vacuum cleaner 100.

[0098] Furthermore, such as Figure 8 As shown, the expanded wall 2111 has a transition section 2111a that connects to the main body of the dust cup wall 211. The transition section 2111a extends radially along the filter structure 22, forming a stepped sidewall. An opening 2111b is provided on the transition section 2111a, through which a sliding rod 331 slides, such that one end of the sliding rod 331 is located outside the dust cup 21, and the other end extends into the inside of the dust cup 21 to connect with the transmission rod 332. Therefore, only a partial expansion of the dust cup wall 211 is needed to create space for the sliding rod 331 to move. Since the volume of the sliding rod 331 is relatively small, the dimensions of the expanded wall 2111 are compatible with the dimensions of the sliding rod 331, eliminating the need to increase the overall diameter of the dust cup 21, effectively preventing the dust cup 21 from becoming too large. Furthermore, by placing the opening 2111b on the transition section 2111a that is set in the horizontal direction, dust or other dirt in the dust cup 21 is less likely to accumulate at the opening 2111b, and the movement of the sliding rod 331 is also smoother.

[0099] It is understood that the transmission rod 332 is used to connect the sliding rod 331 and the scraper bracket 311, so as to convert the axial movement of the sliding rod 331 along the filter cylinder 221 into the axial movement of the scraper bracket 311 along the filter cylinder 221. In one embodiment, the transmission rod 332 can be flexibly connected to the sliding rod 331. For example, the transmission rod 332 and the sliding rod 331 are connected by a rubber component or a chain. Since the flexible component is relatively soft, it is easy to bend, making it easier to connect the sliding rod 331 and the transmission rod 332, and occupying less space.

[0100] Preferably, the transmission rod 332 and the sliding rod 331 are integrally formed. Specifically, as shown in the figure... Figure 7 As shown, the transmission rod 332 has a rod body 3321 and a first connecting section 3322 and a second connecting section 3323 located at both ends of the rod body 3321. The rod body 3321 and the sliding rod 331 are arranged in a stacked and spaced manner along the radial direction of the filter structure 22. The first connecting section 3322 is bent to connect with the sliding rod 331. The first connecting section 3322 is approximately "U"-shaped, so that the rod body 3321 and the sliding rod 331 can be better arranged in parallel and spaced. The second connecting section 3323 extends inward along the radial direction of the filter structure 22 to connect with the scraper 31. The second connecting section 3323 is approximately "L"-shaped and can be inserted and fixed to the scraper bracket 311. When the sliding rod 331 moves, the rod body 3321 moves in the same direction as the sliding rod 331. At the same time, the second connecting section 3323 drives the scraper bracket 311 to move in the same direction, so that the scraper rubber ring 312 can scrape the outer periphery of the filter cylinder 221. The transmission rod 332 and the sliding rod 331 are roughly uniformly cylindrical, small in size and high in strength, occupy little space, and can ensure that sufficient driving force can be provided to the scraper component 31.

[0101] Preferably, the rod body 3321 extends vertically and is parallel to the axial direction of the filter structure 22. Along the axial direction of the filter structure 22, at least a portion of the orthographic projection of the rod body 3321 coincides with the orthographic projection of the dust cup wall 211, and at least a portion of the rod body 3321 is located radially inside the inner circumferential surface of the dust cup 21. The length of the rod body 3321 along the axial direction of the filter structure 22 is longer than that of the first connecting section 3322 and the second connecting section 3323. Therefore, coinciding the rod body 3321 with the dust cup wall 211 effectively reduces the space occupied by the entire transmission rod 332 within the dust cup 21. Furthermore, since at least a portion of the rod body 3321 is located within the dust cup 21, the width of the rod body 3321 along the radial direction of the filter structure 22 is sufficient, resulting in better strength of the rod body 3321 and thus effectively providing dust scraping power.

[0102] Furthermore, at least a portion of the transmission rod 332 is located within the wall thickness space of the dust cup wall 211, which also reduces the impact of the transmission rod 332 on the airflow within the dust cup 21. Specifically, as... Figure 8As shown, a portion of the dust cup wall 211 is thinned outwards to form a mounting wall 2112. The wall thickness of the mounting wall 2112 is less than the wall thickness of the main body of the dust cup wall 211. The thinned space corresponding to the mounting wall 2112 forms a first receiving cavity, and the rod body 3321 is housed within the first receiving cavity. A transition section 2111a is connected to the mounting wall 2112, and the space of the outward expansion of the outward expansion of the wall 2111 relative to the dust cup wall 2111 forms a second receiving cavity. The sliding rod 331 can move from the opening 2111b into the second receiving cavity. When the sliding rod 331 is outside the second receiving cavity, the sliding rod 331 and the rod body 3321 are located on both sides of the mounting wall 2112. When the sliding rod 331 moves downwards along the axial direction of the filter cartridge 221, the sliding rod 331 moves into the second receiving cavity, and the rod body 3321 moves out of the first receiving cavity to move into the second receiving cavity in the same way. Neither the sliding rod 331 nor the rod body 3321 occupies the storage space inside the dust cup 21 during movement, so it will not affect the storage space of the dust cup 21 or the airflow inside the dust cup 21. This allows for better cleaning efficiency of the vacuum cleaner 100 while cleaning the filter cartridge 221.

[0103] The dust discharge port is located at the bottom of the dust cup 21. During the movement of the scraper 31 along the axial direction of the filter cylinder 221, the scraper 31 has a first scraping position close to the dust discharge port and a second scraping position away from the dust discharge port, with the second scraping position located above the first scraping position. In the first scraping position, the sliding rod 331 is located inside the second receiving cavity; in the second scraping position, the sliding rod 331 is located outside the second receiving cavity. When the operating member 32 is not subjected to external force, the scraper 31 is in the second scraping position, positioned close to the upper end of the filter cylinder 221. At this time, the sliding rod 331 is located outside the second receiving cavity and above the opening 2111b. When the operating component 32 is subjected to a downward external force, it drives the sliding rod 331 downward to move into the second receiving cavity. Simultaneously, the transmission rod 332 also moves downward, causing the scraper component 31 to move downward along the axial direction of the filter cylinder 221. When the scraper component 31 is in the first scraping position, the scraper rubber ring 312 performs a cleaning scraping on the outer circumferential surface of the filter cylinder 221. At this point, when the operating component 32 is subjected to an upward force, it drives the sliding rod 331 upward to move out of the second receiving cavity. Simultaneously, the transmission rod 332 also moves upward, causing the scraper component 31 to move upward along the axial direction of the filter cylinder 221. When the scraper component 31 is in the second scraping position, the scraper rubber ring 312 performs a reverse scraping on the outer circumferential surface of the filter cylinder 221. This repeated back-and-forth scraping allows for multiple cleaning cycles of the filter cylinder 221, resulting in a better cleaning effect.

[0104] The operating component 32 can be moved manually or by a drive component, so that the movement of the operating component 32 drives the transmission component 33 to move, thereby causing the scraper component 31 to move along the axial direction of the filter cylinder 221. Preferably, the operating component 32 is moved manually, eliminating the need for a drive component, resulting in a simpler structure and lower cost. Furthermore, preferably, the operating component 32 has a travel along the axial direction of the filter cylinder 221. The movement of the operating component 32 drives the transmission component 33 and the scraper component 31 to move together, making the movement easier to control and resulting in more precise scraping operation.

[0105] Preferably, combined with Figures 4 to 6 As shown, the operating component 32 includes an operating plate 321, a guide rod 322, and a first elastic element 323.

[0106] The control plate 321 is located outside the dust cup 21 and is connected to the sliding rod 331. An operating handle 3211 protrudes from one side of the control plate 321, which can be manually held by the user to apply force. The control plate 321 extends along the axial direction of the filter cartridge 221 and is arc-shaped to match the shape of the outer peripheral surface of the dust cup 21.

[0107] A guide rod 322 is disposed outside the dust cup 21 and extends axially along the filter structure 22. A guide groove is provided on the outer periphery of the dust cup 21, with the groove opening facing outward. The two ends of the guide rod 322 are respectively fixed to two opposite sidewalls of the guide groove arranged in the vertical direction. An operating plate 321 is slidably sleeved on the guide rod 322 and covers the groove opening. The two sidewalls of the guide groove in the vertical direction respectively restrict the vertical movement of the operating plate 321.

[0108] Combination Figure 2 and Figure 9 As shown, the first elastic element 323 is sleeved outside the guide rod 322 and abuts against the operating plate 321 and the dust cup 21. The first elastic element 323 is configured as a telescopic spring, with the upper end of the first elastic element 323 abutting against the upper end of the operating plate 321 and the lower end of the first elastic element 323 abutting against the side wall of the guide groove at the lower end.

[0109] When the operating handle 3211 is subjected to an external force, it drives the operating plate 321 to move along the guide rod 322, causing the sliding rod 331 to move together to the first scraping position for scraping operation. When the external force on the operating handle 3211 is removed, the sliding rod 331 can be driven to return from the first scraping position to the second scraping position under the elastic restoring force of the first elastic member 323, so that the scraping member 31 can automatically return from the first scraping position to the second scraping position. The user only needs to provide a downward force on the operating handle 3211, making the operation more effortless.

[0110] Furthermore, such as Figure 2 As shown, the operating component 32 also includes a decorative cover 324. The decorative cover 324 is located outside the dust cup 21 and covers the outside of the operating plate 321, making the appearance more aesthetically pleasing and better protecting the first elastic member 323 and the operating plate 321. An elongated hole 3241 is provided on the decorative cover 324, through which the operating handle 3211 can be exposed. The elongated hole 3241 extends axially along the filter structure 22, and its length is greater than or equal to the travel distance of the scraper 31 between the first and second scraping positions. The elongated hole 3241 further restricts the travel distance of the operating plate 321, preventing the scraper 31 from moving too much and detaching from the filter cartridge 221. It also ensures that the movement area of ​​the scraper 31 completely covers the outer periphery of the filter cartridge 221, resulting in better cleaning performance of the filter cartridge 221.

[0111] In one embodiment, combined with Figure 4 and Figure 5 As shown, the dust cup 21 also includes a locking structure 23, which has a locked state where the dust cup cover 213 is locked to close the dust discharge port, and an unlocked state where the dust cup cover 213 is unlocked to open the dust discharge port. By locking the dust cup cover 213 with the locking structure 23, the dust cup cover 213 is not easily opened when the vacuum cleaner 100 is working normally, and the dust cup 21 can better store dirt; when the locking structure 23 unlocks the dust cup cover 213, the dust cup cover 213 can open the dust cup port, and dirt can be discharged from the dust cup port to clean the dust cup 21.

[0112] Furthermore, the vacuum cleaner 100 also includes an unlocking member 4. When moving from the second scraping position to the first scraping position, at least a portion of the operating member 32 can act on the unlocking member 4, driving the unlocking member 4 to move and act on the locking structure 23, causing the locking structure 23 to switch from a locked state to an unlocked state. During the process of the operating member 32 acting on the transmission member 33 to move the scraper 31 downward along the axial direction of the filter cartridge 221, the dirt on the outer periphery of the filter cartridge 221 can fall downward into the dust cup 21. At the same time, during the downward movement of the operating member 32, the operating member 32 can act on the unlocking member 4, causing the unlocking member 4 to act on the locking structure 23, allowing the locking structure 23 to open the dust cup cover 213, thereby discharging the dirt in the dust cup 21.

[0113] Specifically, the locking structure 23 includes a locking hook 231 rotatably disposed on the outside of the dust cup 21 and a latch 232 disposed on the dust cup cover 213. The locking hook 231 has a rotating part 2311 rotatably connected to the dust cup 21, a hook part 2312 located on one radial side of the rotating part 2311, and a trigger part 2313 located on the other radial side of the rotating part 2311. A guide plate 214 is provided on the outside of the dust cup 21. The unlocking member 4 is slidably engaged on the guide plate 214 along the axial direction of the filter structure 22. One end of the unlocking member 4 extends toward the locking hook 231. In the first dust scraping position, the unlocking member 4 can press against the trigger part 2313 to drive the locking hook 231 to rotate, so that the hook part 2312 can disengage from the latch 232, thereby opening the dust cup cover 213. The locking hook 231 is located near the bottom of the dust cup 21. When the operating plate 321 moves to the side near the dust cup opening, the operating plate 321 drives the locking hook 231 to rotate, thereby separating the hook part 2312 from the latch part 232 to open the dust cup cover 213. By operating the operating plate 321, the user can clean the filter cartridge 221 while simultaneously opening the dust cup cover 213 to drain the dust cup 21. The user does not need to operate the dust cup cover 213 separately, making it more convenient and saving cleaning time.

[0114] Furthermore, combined Figure 4 and Figure 5 As shown, the locking structure 23 also includes a second elastic element 233. The second elastic element 233 abuts between the unlocking element 4 and the dust cup 21, so that after the user presses down on the operation plate 321 to move to the first dust scraping position to remove dirt, when the force on the operation plate 321 is removed, the operation plate 321 can automatically reset, and the unlocking element 4 can automatically reset under the action of the second elastic element 233, so that the locking hook 231 can be in the locked state.

[0115] Furthermore, the decorative cover 324 can be simultaneously applied to the outer sides of both the unlocking component 4 and the locking hook 231, providing better protection for both while enhancing their aesthetic appeal. The decorative cover 324 is snapped onto the outer periphery of the guide groove and is fixed to the dust cup 21 by screws. The screws are screwed into the center hole of the rotating part 2311 of the locking hook 231, ensuring a stable connection of the decorative cover 324.

[0116] Furthermore, a handle sleeve can be fitted onto the outside of the operating handle 3211 to improve the feel of operation. The operating handle 3211 has a notch that opens radially outward along the filter cartridge 221, thereby forming a first mounting arm and a second mounting arm located on both sides of the notch. The first mounting arm is an elastic arm and has a hook on one side. A buckle is provided on the inside of the handle sleeve. The handle sleeve is fitted onto the outer periphery of the first and second mounting arms, and the hook and buckle are engaged to ensure that the handle sleeve is not easy to fall off and is easy to replace.

[0117] 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 apparatus characterised in that, include: The main body of the vacuum cleaner; A dust cup assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure. The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component; The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement. The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move; The transmission component is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the dust cup wall along the extension direction, at least a portion of the projection of the transmission component coincides with the projection of the dust cup wall, and at least a portion of the transmission component is located radially inside the outer peripheral surface of the dust cup.

2. The vacuum cleaner as described in claim 1, characterized in that, The dust cup wall extends in a direction parallel to the axial direction of the filter structure; both the dust scraper and the transmission component have a travel distance along the axial direction of the filter structure.

3. The dust extraction apparatus of claim 1, wherein, The transmission component includes: A sliding rod, one end of which is connected to the operating component; A transmission rod, one end of which is connected to the other end of the sliding rod, and the other end of which is connected to the scraper. The operation component is moved, causing the sliding rod to move as well, and the transmission rod to drive the scraper component to move axially along the filter structure.

4. The dust extraction apparatus of claim 3, wherein, Along the axial direction of the filter structure, the projection of the drive rod at least partially coincides with the projection of the dust cup wall, and at least a portion of the drive rod is located inside the outer peripheral surface of the dust cup.

5. The dust extraction apparatus of claim 3, wherein On the radial orthogonal projection of the filter structure, the projection of the sliding rod and the projection of the transmission rod at least partially overlap.

6. The dust extraction apparatus of claim 3, wherein, The dust cup wall extends in a direction parallel to the axial direction of the filter structure; the sliding rod has a travel along the axial direction of the filter structure, and the projection of the sliding rod is completely within the projection of the dust cup wall on the orthogonal projection along the axial direction of the filter structure.

7. The dust extraction apparatus of claim 6, wherein, A portion of the dust cup wall is arranged to bulge outward along the radial direction of the filter structure to form an outer expansion wall. On the orthogonal projection along the axial direction of the filter structure, the projection of the sliding rod is completely located within the projection of the outer expansion wall.

8. The dust extraction apparatus of claim 7, wherein, The outer expansion wall has a transition section that connects to the main body of the dust cup wall. The transition section extends radially along the filter structure and has an opening. The sliding rod slides through the opening, such that one end of the sliding rod is located outside the dust cup and the other end extends into the inside of the dust cup to connect with the transmission rod.

9. The dust extraction apparatus of claim 8, wherein, The transmission rod has a rod body and a first connecting section and a second connecting section located at both ends of the rod body; The rod body and the sliding rod are stacked and spaced apart along the radial direction of the filter structure. The first connecting section is bent to connect with the sliding rod, and the second connecting section extends inward along the radial direction of the filter structure to connect with the scraper.

10. The dust extraction apparatus of claim 9, wherein, Along the axial direction of the filter structure, at least a portion of the orthographic projection of the rod body coincides with the orthographic projection of the dust cup wall, and at least a portion of the rod body is located radially inside the inner circumferential surface of the dust cup.

11. The dust extraction apparatus of claim 9, wherein, The dust cup wall is partially thinned outward to form an installation wall, and the thinned space corresponding to the installation wall forms a first receiving cavity, in which the rod body is received; The transition section is connected to the mounting wall, and the space of the outward expansion wall relative to the dust cup wall is used to form a second receiving cavity. The sliding rod can move from the opening into the second receiving cavity.

12. The dust extraction apparatus of claim 11, wherein, The dust cup has a dust discharge port at one end of its axial direction, and the dust scraper has a first dust scraping position close to the dust discharge port and a second dust scraping position away from the dust discharge port. When in the first scraping position, the sliding rod is located inside the second accommodating cavity; when in the second scraping position, the sliding rod is located outside the second accommodating cavity.

13. The dust extraction apparatus of claim 3, wherein, The dust cup has a dust discharge port at one axial end, and the dust scraper has a first dust scraping position near the dust discharge port and a second dust scraping position away from the dust discharge port; the operating component includes: An operating panel is located outside the dust cup and connected to the sliding rod, with an operating handle protruding from one side of the operating panel; A guide rod is disposed outside the dust cup and extends along the axial direction of the filter structure; The first elastic element is sleeved outside the guide rod and abuts against the operating plate and the dust cup; The operating plate is slidably sleeved on the guide rod. The operating handle is subjected to an external force to drive the operating plate to move along the guide rod and drive the sliding rod to move together to the first dust-scraping position. When the external force on the operating handle is removed, the sliding rod can be driven to return from the first dust-scraping position to the second dust-scraping position under the elastic restoring force of the first elastic element.

14. The dust extraction apparatus of claim 13, wherein, The operating component also includes a decorative cover, which is located outside the dust cup and covers the outside of the operating plate. The decorative cover has an elongated hole, through which the operating handle can be exposed. The elongated hole extends along the axial direction of the filter structure, wherein the length of the elongated hole is greater than or equal to the travel distance of the dust scraper between the first dust scraping position and the second dust scraping position.

15. The dusting apparatus of claim 13, wherein, The dust cup includes a dust cup cavity, a dust cup cover, and a locking structure. The dust outlet is located at one end of the axial direction of the dust cup cavity. The dust cup cover is movably disposed on the dust cup cavity to open and close the dust outlet. The locking structure has a locked state in which the dust cup cover is locked to close the dust outlet, and an unlocked state in which the dust cup cover is unlocked to open the dust outlet. The vacuum cleaner also includes an unlocking component. When moving from the second dust-scraping position to the first dust-scraping position, at least a portion of the operating component can act on the unlocking component and drive the unlocking component to move to act on the locking structure, so that the locking structure switches from the locked state to the unlocked state.

16. The dust extraction apparatus of claim 15, wherein, The locking structure includes a locking hook rotatably disposed on the outside of the dust cup and a buckle disposed on the dust cup cover. The locking hook has a rotating part rotatably connected to the dust cup, a hook part located on one radial side of the rotating part, and a trigger part located on the other radial side of the rotating part. The dust cup is provided with a guide plate on its outer side. The unlocking member is slidably engaged on the guide plate along the axial direction of the filter structure. One end of the unlocking member extends toward the direction of the locking hook. When in the first dust scraping position, the unlocking member can press against the trigger part to drive the locking hook to rotate, so that the hook can disengage from the buckle.

17. The dusting apparatus of claim 3, wherein, The scraper component includes: A scraper bracket is arranged around the outer periphery of the filter structure and connected to the transmission rod; The scraper rubber ring is disposed on the scraper bracket and is fitted to the outer peripheral surface of the filter structure; The movement of the transmission rod drives the scraper bracket to move axially along the filter structure, causing the scraper rubber ring to move along the outer peripheral surface of the filter structure.

18. A dust extraction apparatus characterised in that, include: The main body of the vacuum cleaner; A dust cup assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure. The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component; The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement. The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move; The transmission component is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the dust cup wall along the extension direction, the projection of the transmission component at least partially coincides with the projection of the dust cup wall, and at least part of the transmission component is located radially inside the inner circumferential surface of the dust cup.

19. A dust extraction apparatus characterised in that, include: The main body of the vacuum cleaner; A dust cup assembly is disposed on the vacuum cleaner body and includes a dust cup and a filter structure disposed within the dust cup. The dust cup has a dust cup wall circumferentially arranged along the filter structure. The scraping assembly includes a scraping component, an operating component, and a transmission component connecting the scraping component and the operating component; The dust scraper is configured to move between the inner peripheral surface of the dust cup and the outer peripheral side of the filter structure, such that at least a portion of the dust scraper can come into contact with the filter structure during movement. The operating element is at least partially located outside the dust cup and can be manipulated to move the transmission element to drive the scraper element to move; The transmission member is movably disposed along the extension direction of the dust cup wall. On the orthographic projection of the dust cup wall in the extension direction, the projection of the transmission member at least partially coincides with the projection of the dust cup wall, and at least part of the transmission member is located on the radially outer side of the inner peripheral surface of the dust cup and at least part of the radially inner side of the outer peripheral surface of the dust cup.

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