A portable vacuum cleaner

Abstract

This invention specifically relates to a portable vacuum cleaner, comprising an electric roller brush extending along a first axis and a main body extending along a second axis. The electric roller brush and the main body are connected, and the first axis is parallel to or overlaps with the second axis. A filter mechanism is provided on the electric roller brush, and the electric roller brush, filter mechanism, and main body are sequentially connected. The main body provides suction to draw dust entrained by the electric roller brush to the filter mechanism for filtration. The electric roller brush of this invention significantly increases the cleaning coverage of the portable vacuum cleaner, requiring less time to clean the same area, greatly improving the cleaning efficiency of the portable vacuum cleaner. When the user performs handheld cleaning, dust is automatically entrained by the electric roller brush and drawn to the filter mechanism, saving time and effort. Furthermore, it avoids the portable vacuum cleaner occupying a large space in two perpendicular directions, ensuring that the portable vacuum cleaner, even with the addition of the electric roller brush, still maintains its small size and easy storage characteristics.

Description

Technical Field

[0001] This invention relates to the field of vacuum cleaner technology, specifically to a portable vacuum cleaner. Background Technology

[0002] Existing portable vacuum cleaners, or small vacuum cleaners, generally do not come equipped with brush heads. For example, the car vacuum cleaner disclosed in patent application number 201620472685.4 relies solely on a small-diameter suction nozzle for vacuuming, resulting in low vacuuming efficiency and difficulty in cleaning larger areas such as sofas, desktops, and bay windows.

[0003] Traditional standard-sized household vacuum cleaners, when using wide-width or motorized brush heads, typically employ a "T"-shaped layout between the brush head or roller brush shaft and the body. For example, the upright vacuum cleaner disclosed in patent application number 201710509359.5 has a T-shaped structure for its floor brush and the overall body. Standard-sized household vacuum cleaners designed based on this structure are more convenient for users to operate.

[0004] However, directly applying the T-shaped structure of a standard-sized household vacuum cleaner to a portable vacuum cleaner (small vacuum cleaner) will cause the portable vacuum cleaner to occupy a large amount of space in both perpendicular directions, resulting in a significant increase in the overall size of the product and making it difficult to store. Summary of the Invention

[0005] In view of this, the present invention provides a portable vacuum cleaner to solve the problem of low cleaning efficiency caused by the small cleaning range of the vacuum nozzle in the related art, and to solve the problem that directly applying the T-shaped structure of a regular-sized household vacuum cleaner to a portable vacuum cleaner will result in a significant increase in the overall size of the portable vacuum cleaner and make it difficult to store.

[0006] To achieve one or more of the above objectives or other objectives, the present invention provides a portable vacuum cleaner, comprising an electric roller brush extending along a first axis and a main body extending along a second axis, wherein the electric roller brush and the main body are connected, and the first axis is parallel to or overlaps with the second axis.

[0007] The electric roller brush is equipped with a filter mechanism. The electric roller brush, the filter mechanism, and the main body are connected in sequence. The main body is used to provide suction to draw the dust entrained by the electric roller brush to the filter mechanism for filtration.

[0008] In an optional embodiment, a first air duct is provided inside the main body, and a first motor for exhaust is provided inside the first air duct. One end of the first air duct is a first air inlet, which is located at the front end of the main body and connected to the filter mechanism. The other end of the first air duct is connected to the outside.

[0009] In one alternative embodiment, the electric roller brush includes an outer cover, a roller brush body, and a second motor;

[0010] The outer cover has a brush groove, the roller brush body is rotatably connected in the brush groove, the second motor is mounted on the outer cover, and the second motor is connected to and controls the rotation of the roller brush body;

[0011] The outer cover is provided with a second air duct, the two ends of which are a second air inlet and a second air outlet, respectively. The second air inlet is located on the groove surface of the brush groove, and the second air outlet is located on the outer surface of the outer cover and is connected to the filter mechanism.

[0012] In one optional embodiment, the top of the outer cover is provided with a connecting part that communicates with the front and back. The front end of the connecting part is connected to the filter mechanism, and the rear end of the connecting part is connected to the main body.

[0013] In one alternative embodiment, the filtration mechanism includes a dust cup and a first filter assembly;

[0014] The first filter assembly is disposed at the front end of the connecting part and is located inside the dust cup;

[0015] The dust cup is detachably connected to the connecting part, and the dust cup is used for dust collection.

[0016] The dust cup has a dust inlet, which is connected to the second air outlet.

[0017] In one optional embodiment, the front end of the dust cup is provided with a slot, and the top of the outer cover is provided with an elastic buckle. The elastic buckle engages with the slot, so that the dust cup is positioned between the elastic buckle and the connecting part.

[0018] In one optional embodiment, a baffle is rotatably connected inside the dust cup, and the baffle covers the dust inlet. When the baffle is subjected to the suction force of the main body, the baffle flips up, exposing the dust inlet.

[0019] In one alternative embodiment, the roller brush body includes a brush shaft, a first brush bristle, and a second brush bristle;

[0020] The brush shaft is rotatably connected inside the brush groove, and one end of the brush shaft is connected to the second motor;

[0021] The first bristles are wound around the front half of the brush shaft along a first spiral curve, and the second bristles are wound around the rear half of the brush shaft along a second spiral curve, with the spiral directions of the first spiral curve and the second spiral curve being opposite.

[0022] The second air inlet faces the center of the brush shaft.

[0023] In an optional embodiment, the electric roller brush is detachably connected to the main body;

[0024] The main unit is equipped with a storage battery, and the second motor is electrically connected to the storage battery.

[0025] The front end of the main body is provided with a power supply interface that is electrically connected to the battery, and the electric roller brush is provided with a first power supply connector. When the electric roller brush is connected to the main body, the first power supply connector abuts against the power supply interface to achieve electrical connection.

[0026] In an optional embodiment, the portable vacuum cleaner further includes an extension accessory that can be installed and connected to the front end of the main body after the main body is detached from the electric roller brush, for use with the main body;

[0027] The expansion accessories include at least one of the following:

[0028] The first type: a vacuum head assembly, which includes an inlet nozzle, a second filter assembly, and a first connecting shell that runs through the front and back;

[0029] One end of the first connecting shell is connected to the inlet nozzle, and the other end is detachably connected to the front end of the main body.

[0030] The second filter assembly is disposed at the front end of the main body and located inside the first connecting shell, which is used for dust collection;

[0031] The second type: a flat suction head assembly, which includes a brush head, a flat tube, a third filter assembly, and a second connecting shell that runs through the front and back.

[0032] The brush head is slidably sleeved on the outer periphery of the flat tube. A first fastening position is provided at the front end of the flat tube, and a second fastening position is provided on the flat tube. The second fastening position is located behind the first fastening position. The first fastening position and the second fastening position are used to hold the brush head.

[0033] The flat tube is inserted at the front end of the second connecting shell, and the rear end of the second connecting shell is detachably connected to the front end of the main body.

[0034] The third filter assembly is disposed at the front end of the main body and located inside the second connecting shell, which is used for dust collection;

[0035] The third type: a lint removal assembly, which includes a housing, a rotating blade, a third motor, and a fourth filter assembly;

[0036] The third motor and the rotating blade are disposed inside the housing, and the third motor is connected to and controls the rotation of the rotating blade.

[0037] The bottom end face of the outer shell has several through holes, and the rotating blade is located on the top side of the through holes;

[0038] The side of the housing is provided with a host interface, which is detachably connected to the front end of the host body. A second power supply connector is provided on the end face of the host interface. The second power supply connector is electrically connected to the third motor and is used to abut against the power supply interface to achieve electrical connection.

[0039] The fourth filter component is disposed at the host interface and is located inside the housing.

[0040] The housing has a dust collection chamber located inside the fourth filter assembly.

[0041] The fourth type: a long suction rod assembly, which includes a long suction rod, an electric floor brush, a fifth filter assembly, and a third connecting shell that runs through the front and back;

[0042] The long suction rod has a hollow structure, with one end rotatably connected to the electric floor brush and the other end connected to the front end of the third connecting shell. The rear end of the third connecting shell is detachably connected to the front end of the main body.

[0043] A third power supply connector is provided on the rear end face of the third connecting shell. The third power supply connector is electrically connected to the electric ground brush. The third power supply connector is used to abut against the power supply interface to achieve electrical connection.

[0044] The fifth filter component is disposed at the front end of the main body and located inside the third connecting shell, which is used for dust collection.

[0045] Implementing the embodiments of the present invention will have the following beneficial effects:

[0046] This invention employs a design where an electric roller brush is mounted parallel or coaxially on the main body. Compared to existing portable vacuum cleaners that rely solely on small-diameter nozzles, the electric roller brush of this invention significantly increases the cleaning coverage area of ​​the portable vacuum cleaner, requiring less time to clean the same area and greatly improving its cleaning efficiency. When the user holds the vacuum cleaner, dust is automatically drawn into the electric roller brush and sucked to the filter mechanism, saving time and effort. Furthermore, while increasing the cleaning coverage area, this invention avoids the T-shaped structure of traditional, standard-sized household vacuum cleaners. The electric roller brush is coaxial or parallel to the main body, thus preventing the portable vacuum cleaner from occupying a large amount of space in two perpendicular directions. This ensures that even with the addition of the electric roller brush, the portable vacuum cleaner maintains its compact size and ease of storage.

[0047] This invention solves the problem of low cleaning efficiency due to the small cleaning range of the vacuum nozzle in portable vacuum cleaners, and also addresses the issue that directly applying the T-shaped structure of a standard-sized household vacuum cleaner to a portable vacuum cleaner would significantly increase the overall size of the portable vacuum cleaner and make it difficult to store. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] in:

[0050] Figure 1 This is a perspective view of a portable vacuum cleaner according to an optional embodiment of the present invention;

[0051] Figure 2 This is an exploded view of a portable vacuum cleaner according to an optional embodiment of the present invention;

[0052] Figure 3 This is an exploded view of a portable vacuum cleaner according to an optional embodiment of the present invention;

[0053] Figure 4 This is a cross-sectional view of a portable vacuum cleaner according to an optional embodiment of the present invention;

[0054] Figure 5 This is a perspective view of the filter mechanism after being cut open in an optional embodiment of the present invention;

[0055] Figure 6 This is a cross-sectional view of the main body and the vacuum head assembly in an optional embodiment of the present invention;

[0056] Figure 7 This is an exploded view of the main body and the flat suction head assembly in an optional embodiment of the present invention;

[0057] Figure 8 This is a cross-sectional view of the main body and the flat suction head assembly in an optional embodiment of the present invention;

[0058] Figure 9 This is an exploded view of the main body and the lint removal assembly in an optional embodiment of the present invention;

[0059] Figure 10 This is a cross-sectional view of the main body and the depilatory assembly in an optional embodiment of the present invention;

[0060] Figure 11 This is a schematic diagram of the main body and the long suction rod assembly in an optional embodiment of the present invention.

[0061] The reference numerals in the attached drawings are explained as follows: 1-Main body; 11-First motor; 12-Power supply interface; 13-First air duct; 131-First air inlet; 132-First air outlet; 14-Battery; 2-Electric roller brush; 21-Outer cover; 211-Brush groove; 212-Spring groove; 22-Second air duct; 221-Second air inlet; 222-Second air outlet; 23-Connecting part; 231-First power supply connector; 24-Roller brush body; 241-Brush shaft; 242-First bristles; 243-Second bristles; 25-Second motor; 26-Elastic buckle; 261-Sliding buckle; 262-Spring; 3-Filter mechanism; 31-Dust cup; 311-Slot; 312-Dust inlet; 313-Baffle; 314-Plate base ; 315-First torsion spring; 32-First filter assembly; 321-Filter screen; 322-Filter nozzle; 4-Dust suction head assembly; 41-Inlet nozzle; 42-First connecting shell; 43-Second filter assembly; 44-First dust-blocking structure; 5-Flat suction head assembly; 51-Flat tube; 52-Brush head; 53-First fastener; 54-Second fastener; 55-Second connecting shell; 56-Second dust-blocking structure; 57-Third filter assembly; 6-Lin tufting assembly; 61-Outer shell; 611-Dust collection chamber; 62-Rotating blade; 63-Third motor; 64-Fourth filter assembly; 65-Third dust-blocking structure; 66-Second power supply connector; 7-Long suction rod assembly; 71-Long suction rod; 72-Electric floor brush; 73-Third connecting shell. Detailed Implementation

[0062] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] Please refer to the following for comprehensive information. Figures 1 to 4 According to one embodiment of the present invention, a portable vacuum cleaner includes an electric roller brush 2 extending along a first axis and a main body 1 extending along a second axis. The electric roller brush 2 and the main body 1 are connected, and the first axis is parallel to or overlaps with the second axis.

[0064] The electric roller brush 2 is equipped with a filter mechanism 3. The electric roller brush 2, the filter mechanism 3, and the main body 1 are connected in sequence. The main body 1 is used to provide suction to draw the dust rolled into the electric roller brush 2 to the filter mechanism 3 for filtration.

[0065] Compared to existing portable vacuum cleaners that rely solely on small-diameter nozzles, the motorized roller brush 2 in this embodiment significantly increases the vacuuming coverage area, requiring less time to clean the same area and greatly improving cleaning efficiency. When the user holds the vacuum cleaner, dust is automatically drawn into the motorized roller brush and drawn to the filter mechanism, saving time and effort. For example, when cleaning a wide tabletop, it's easy to reach from one side to the other without having to repeatedly clean the entire surface.

[0066] On the other hand, while increasing the cleaning coverage area, this embodiment avoids the T-shaped structure of traditional household vacuum cleaners of conventional size. The electric roller brush of this embodiment is coaxial or parallel to the main body, thereby avoiding the portable vacuum cleaner occupying a large space in two perpendicular directions, ensuring that the portable vacuum cleaner still has the characteristics of small size and easy storage after adding the electric roller brush.

[0067] This invention solves the problem of low cleaning efficiency caused by the small cleaning range of the nozzle in portable vacuum cleaners (or small vacuum cleaners) in related technologies, and also solves the problem that directly applying the T-shaped structure of a regular-sized household vacuum cleaner to a portable vacuum cleaner would result in a significant increase in the overall size of the portable vacuum cleaner and make it difficult to store.

[0068] In addition, the layout of the electric roller brush 2 and the main body 1 in this embodiment is similar to that of a commonly used feather duster or dust brush, which continues the traditional cleaning method and makes it more familiar and easier for new users to use.

[0069] Furthermore, this embodiment can improve vacuuming efficiency, meaning that less time is needed to clean the same area. This allows a portable vacuum cleaner with the same battery capacity to clean more areas, thus saving energy and protecting the environment. It also alleviates users' anxiety about the battery life that is common with such portable vacuum cleaners.

[0070] like Figure 4As shown, a first air duct 13 is provided inside the main body 1, and a first motor 11 for exhaust is provided inside the first air duct 13. One end of the first air duct 13 is a first air inlet 131, which is located at the front end of the main body 1 and connected to the filter mechanism 3. The other end of the first air duct 13 is connected to the outside. For example, the other end of the first air duct 13 is a first air outlet 132, which is located on the rear end or side of the main body 1. When the first motor 11 is working, it performs exhaust, and air enters the first air duct 13 from the first air inlet 131 and is discharged to the outside through the first air outlet 132.

[0071] like Figures 2 to 4 As shown, the electric roller brush 2 includes an outer cover 21, a roller brush body 24, and a second motor 25. The outer cover 21 has a brush groove 211, and the roller brush body 24 is rotatably connected within the brush groove 211. The second motor 25 is mounted on the outer cover 21 and connects to and controls the rotation of the roller brush body 24. A second air duct 22 is provided inside the outer cover 21. The two ends of the second air duct 22 are a second air inlet 221 and a second air outlet 222, respectively. The second air inlet 221 is located on the groove surface of the brush groove 211, and the second air outlet 222 is located on the outer surface of the outer cover 21 and communicates with the filter mechanism 3.

[0072] In this embodiment, the main body 1 provides suction, and the second motor 25 controls the roller brush 24 to rotate. The roller brush 24 rotates and raises the dust on the surface of external objects. The dust is drawn into or sucked into the brush groove 211, and then enters the second air duct 22 through the second air inlet 221 and then enters the filter mechanism 3 through the second air outlet 222 for filtration.

[0073] The top of the outer cover 21 is provided with a connecting part 23 that is open at both ends. The front end of the connecting part 23 is connected to the filter mechanism 3, and the rear end of the connecting part 23 is connected to the main body 1. Optionally, the filter mechanism 3 extends along the first axis.

[0074] like Figure 4 and Figure 5 As shown, the filtration mechanism 3 may include a dust cup 31 and a first filter assembly 32. The first filter assembly 32 is disposed at the front end of the connecting part 23 and is located inside the dust cup 31. The dust cup 31 is detachably connected to the connecting part 23 and is used for dust collection. The dust cup 31 has a dust inlet 312, which communicates with the second air outlet 222. After the airflow carrying dust enters the dust cup 31 from the second air outlet 222 and the dust inlet 312, the dust is blocked by the first filter assembly 32 and accumulates inside the dust cup 31. The filtered airflow is then drawn into the main body 1 and discharged to the outside.

[0075] like Figure 3 and Figure 4As shown, in an optional embodiment, the front end of the dust cup 31 is provided with a slot 311, and the top of the outer cover 21 is provided with an elastic buckle 26. The elastic buckle 26 engages with the slot 311, positioning the dust cup 31 between the elastic buckle 26 and the connecting part 23. In this way, the user can release and remove the dust cup 31 using the elastic buckle 26, allowing the user to empty the dust accumulated in the dust cup 31 or clean it.

[0076] As an example, the elastic buckle 26 includes a sliding buckle 261 and a spring 262. The sliding buckle 261 can be engaged with the slot 311. The outer cover 21 is provided with a sliding groove, and the sliding buckle 261 is slidably connected in the sliding groove. The outer cover 21 is provided with a spring groove 212, and the spring 262 is disposed in the spring groove 212. The two ends of the spring 262 press against the spring groove 212 and the sliding buckle 261 respectively. In this way, the spring 262 provides a pushing force to the sliding buckle 261 in the direction of the connecting part 23, so that the sliding buckle 261 can press the dust cup 31 tightly.

[0077] In an optional embodiment, a baffle 313 is rotatably connected inside the dust cup 31. The baffle 313 covers the dust inlet 312. When the baffle 313 is subjected to suction from the main body 1, the baffle 313 flips up, exposing the dust inlet 312. In this way, when the main body 1 is working, the baffle 313 automatically opens to expose the dust inlet 312, allowing dust to enter. When the main body 1 stops working, the baffle 313 automatically closes the dust inlet 312, preventing dust accumulated in the dust cup 31 from leaking out of the dust inlet 312, thus improving the dust removal reliability of the vacuum cleaner.

[0078] As an example, such as Figure 4 and Figure 5 As shown, a plate base 314 is provided inside the dust cup 31. One end of a baffle 313 is rotatably connected to the plate base 314. A first torsion spring 315 is provided on the baffle 313. The two ends of the first torsion spring 315 press against the baffle 313 and the plate base 314 respectively, and the first torsion spring 315 provides a thrust to the baffle 313, which causes the baffle 313 to close over the dust inlet 312. When the baffle 313 is subjected to the suction force of the main body 1, the suction force on the baffle 313 is greater than the thrust force of the first torsion spring 315, so the baffle 313 flips over, exposing the dust inlet 312 to allow dust to enter.

[0079] In an optional embodiment, the first filter assembly 32 includes a filter screen 321 and a filter nozzle 322. The filter screen 321 is detachably connected to the connecting part 23. The filter screen 321 covers the outside of the filter nozzle 322, and the filter nozzle 322 is a filter material, such as HEPA filter cotton.

[0080] In an alternative embodiment, such as Figure 2 and Figure 4As shown, the roller brush body 24 includes a brush shaft 241, first bristles 242, and second bristles 243. The brush shaft 241 is rotatably connected within the brush groove 211, and one end of the brush shaft 241 is connected to a second motor 25. The first bristles 242 are wound along a first helical curve on the front half of the brush shaft 241, and the second bristles 243 are wound along a second helical curve on the rear half of the brush shaft 241. The helical directions of the first and second helical curves are opposite. The second air inlet 221 faces the center of the brush shaft 241.

[0081] During operation, the second motor 25 controls the rotation of the brush shaft 241. Since the first bristles 242 and the second bristles 243 are similar to a spiral surface, they interact with the groove surface of the brush slot 211 and the surface of external objects as they rotate. Because the spiral directions of the first bristles 242 and the second bristles 243 are opposite, during rotation, the first bristles 242 and the second bristles 243 push dust, hair, and other debris axially towards the second air inlet 221, causing the dust and other debris to concentrate near the second air inlet 221 for easy suction. In this way, the roller brush 24, in addition to peeling and rolling up dust from the surface of external objects, also gathers debris towards the second air inlet 221, greatly optimizing the cleaning efficiency of the portable vacuum cleaner and reducing the burden on the first motor 11 inside the main body 1.

[0082] The electric roller brush 2 is detachably connected to the main body 1. A battery 14 is installed inside the main body 1, and the second motor 25 is electrically connected to the battery 14. A power supply interface 12, electrically connected to the battery 14, is located at the front end of the main body 1. A first power supply connector 231 is installed on the electric roller brush 2. When the electric roller brush 2 is connected to the main body 1, the first power supply connector 231 abuts against the power supply interface 12 to achieve electrical connection. The main body 1 can be detached for separate charging. The battery 14 provides power for the main body 1's ventilation function and also powers the rotation of the electric roller brush 2.

[0083] Since the main body 1 of the portable vacuum cleaner is equipped with a battery 14 and a power interface 12, a variety of expansion accessories can be designed for different application scenarios, maximizing the use of the first motor 11 and the battery 14 inside the main body 1, reducing the repeated purchase costs for consumers, and conforming to the green and environmentally friendly product design concept.

[0084] Based on the foregoing description, in an optional embodiment, the portable vacuum cleaner may further include an extension accessory. After the main body 1 is detached from the electric roller brush 2, the extension accessory can be installed and connected to the front end of the main body 1 for use with the main body 1 to meet different vacuuming function needs of the user. The extension accessory includes at least one of the following:

[0085] Type 1: Vacuum cleaner head assembly 4, such as Figure 6As shown, the vacuum head assembly 4 includes an inlet nozzle 41, a second filter assembly 43, and a first connecting shell 42 that runs through the front and rear. One end of the first connecting shell 42 is connected to the inlet nozzle 41, and the other end is detachably connected to the front end of the main body 1. The second filter assembly 43 is disposed at the front end of the main body 1 and is located inside the first connecting shell 42, which is used for dust collection.

[0086] Optionally, the rear end of the inlet nozzle 41 may be provided with a first dust-blocking structure 44 to prevent dust accumulated in the first connecting shell 42 from leaking to the outside. The structure of the first dust-blocking structure 44 is similar to that of the baffle 313, the first torsion spring 315 and the plate base 314 mentioned above, and will not be described in detail here.

[0087] The second type: flat suction head assembly 5, such as Figure 7 and Figure 8 As shown, the crevice tool assembly 5 includes a brush head 52, a crevice tube 51, a third filter assembly 57, and a second connecting shell 55 that extends from front to back. The brush head 52 is slidably fitted around the outer periphery of the crevice tube 51. A first fastener 53 is provided at the front end of the crevice tube 51, and a second fastener 54 is provided on the crevice tube 51, located behind the first fastener 53. The first fastener 53 and the second fastener 54 are used to hold the brush head 52 in place. The crevice tube 51 is inserted into the front end of the second connecting shell 55, and the rear end of the second connecting shell 55 is detachably connected to the front end of the main body 1. The third filter assembly 57 is located at the front end of the main body 1 and inside the second connecting shell 55, which is used for dust collection. The crevice tool assembly 5, in conjunction with the main body 1, can clean some crevices or areas with a certain depth. When the brush head 52 is needed, it slides to the first fastener 53 for locking; when the brush head 52 is not needed, it slides to the second fastener 54 for locking. The flat tube 51 can be made by connecting multiple tube ends in series, allowing users to freely choose the length.

[0088] Optionally, a dust inlet is provided inside the second connecting shell 55, and a second dust-blocking structure 56 is provided at the dust inlet. The structure of the second dust-blocking structure 56 is similar to the baffle 313, the first torsion spring 315 and the plate base 314 mentioned above, and will not be described in detail here.

[0089] The third type: Lint removal component 6, such as Figure 9 and Figure 10As shown, the lint removal assembly 6 includes a housing 61, a rotating blade 62, a third motor 63, and a fourth filter assembly 64. The third motor 63 and the rotating blade 62 are disposed inside the housing 61, and the third motor 63 connects to and controls the rotation of the rotating blade 62. Several through holes are opened on the bottom end face of the housing 61, and the rotating blade 62 is located on the top side of the through holes. A host interface is opened on the side of the housing 61, and the host interface is detachably connected to the front end of the host body 1. A second power supply connector 66 is provided on the end face of the host interface. The second power supply connector 66 is electrically connected to the third motor 63 and is used to abut against the power supply interface 12 to achieve electrical connection. The fourth filter assembly 64 is disposed at the host interface and is located inside the housing 61. A dust collection chamber 611 is provided inside the housing 61, and the dust collection chamber 611 is located in front of the fourth filter assembly 64.

[0090] Optionally, a dust inlet is provided inside the outer casing 61, and a third dust-blocking structure 65 is provided at the dust inlet. The third dust-blocking structure 65 can be a soft baffle. One end of the soft baffle is fixed to the outer casing 61. In the default state, the soft baffle covers the dust inlet. When the main body 1 generates suction, the soft baffle is deformed by the suction, thereby opening and exposing the dust inlet. When the main body 1 stops working, the soft baffle returns to its original position and covers the dust inlet, preventing dust in the dust collection chamber 611 from leaking out of the dust inlet to the outside.

[0091] The fourth type: long suction rod assembly 7, such as Figure 11 As shown, the long suction rod assembly 7 includes a long suction rod 71, an electric floor brush 72, a fifth filter assembly, and a third connecting shell 73 that runs through the front and rear. The long suction rod 71 has a hollow structure, with one end rotatably connected to the electric floor brush 72 and the other end connected to the front end of the third connecting shell 73. The rear end of the third connecting shell 73 is detachably connected to the front end of the main body 1. A third power supply connector is provided on the rear end surface of the third connecting shell 73. The third power supply connector is electrically connected to the electric floor brush 72 and is used to abut against the power supply interface 12 to achieve electrical connection. The fifth filter assembly is located at the front end of the main body 1 and inside the third connecting shell 73. The third connecting shell 73 is used for dust collection.

[0092] In summary, the present invention has the following beneficial effects:

[0093] 1. Compared to existing portable vacuum cleaners (or small vacuum cleaners) that rely solely on small-diameter nozzles, the electric roller brush 2 in this embodiment significantly increases the vacuuming coverage area, requiring less time to clean the same area and greatly improving cleaning efficiency. When the user holds the vacuum cleaner, dust is automatically drawn into the electric roller brush and drawn to the filter mechanism, saving time and effort. For example, when cleaning a wide tabletop, it is easy to reach from one side to the other without having to repeatedly clean the entire tabletop. This solves the problem of low cleaning efficiency caused by the small cleaning range of the nozzle in related technologies.

[0094] 2. While increasing the cleaning coverage area, this embodiment avoids the T-shaped structure of traditional standard-sized household vacuum cleaners. The motorized roller brush is coaxial or parallel to the main body, thus preventing the portable vacuum cleaner from occupying a large amount of space in both perpendicular directions. This ensures that the portable vacuum cleaner, even with the addition of the motorized roller brush, still maintains its small size and ease of storage. This solves the problem that directly applying the T-shaped structure of standard-sized household vacuum cleaners to portable vacuum cleaners would result in a significant increase in the overall size of the portable vacuum cleaner and make it difficult to store.

[0095] 3. The layout of the electric roller brush 2 and the main body 1 in this embodiment is similar to that of a commonly used feather duster or dust brush, which continues the traditional cleaning method and makes it more familiar and easier for new users to use.

[0096] 4. This embodiment can improve vacuuming efficiency, meaning that less time is needed to clean the same area. Thus, a portable vacuum cleaner with the same battery capacity can clean more areas, which can save energy and protect the environment. At the same time, it can also alleviate users' common anxiety about the battery life of such portable vacuum cleaners.

[0097] 5. Since the main body 1 of the portable vacuum cleaner is equipped with a battery 14 and a power interface 12, it has a variety of expansion accessories available for users to choose from for different application scenarios. This maximizes the utilization of the first motor 11 and the battery 14 inside the main body 1, reduces the repeated purchase costs for consumers, and conforms to the green and environmentally friendly product design concept.

[0098] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A portable vacuum cleaner, characterized in that: It includes an electric roller brush (2) extending along a first axis and a main body (1) extending along a second axis. The electric roller brush (2) and the main body (1) are connected. The first axis is parallel to or overlaps with the second axis. The electric roller brush (2) and the main body (1) are detachably connected. The electric roller brush (2) is provided with a filter mechanism (3). The electric roller brush (2), the filter mechanism (3), and the main body (1) are connected in sequence. The main body (1) is used to provide suction to draw the dust rolled up by the electric roller brush (2) to the filter mechanism (3) for filtration. The electric roller brush (2) includes an outer cover (21), a roller brush body (24), and a second motor (25); The outer cover (21) has a brush groove (211), the roller brush body (24) is rotatably connected in the brush groove (211), the second motor (25) is mounted on the outer cover (21), and the second motor (25) is connected to and controls the rotation of the roller brush body (24); The outer cover (21) is provided with a second air duct (22), and the two ends of the second air duct (22) are a second air inlet (221) and a second air outlet (222), respectively. The second air inlet (221) is located on the groove surface of the brush groove (211), and the second air outlet (222) is located on the outer surface of the outer cover (21) and communicates with the filter mechanism (3). The filtration mechanism (3) includes a dust cup (31) and a first filtration assembly (32), and the filtration mechanism (3) extends along a first axis.

2. The portable vacuum cleaner as described in claim 1, characterized in that: The main body (1) is provided with a first air duct (13), and a first motor (11) for exhaust is provided in the first air duct (13). One end of the first air duct (13) is a first air inlet (131), which is located at the front end of the main body (1) and connected to the filter mechanism (3). The other end of the first air duct (13) is connected to the outside.

3. The portable vacuum cleaner as described in claim 1, characterized in that: The top of the outer cover (21) is provided with a connecting part (23) that is connected to the front and back. The front end of the connecting part (23) is connected to the filter mechanism (3), and the rear end of the connecting part (23) is connected to the main body (1).

4. The portable vacuum cleaner as described in claim 3, characterized in that: The first filter assembly (32) is disposed at the front end of the connecting part (23), and the first filter assembly (32) is located inside the dust cup (31); The dust cup (31) is detachably connected to the connecting part (23), and the dust cup (31) is used for dust collection; The dust cup (31) has a dust inlet (312) which is connected to the second air outlet (222).

5. The portable vacuum cleaner as described in claim 4, characterized in that: The dust cup (31) has a slot (311) at its front end, and the outer cover (21) has an elastic buckle (26) at its top. The elastic buckle (26) engages with the slot (311) to position the dust cup (31) between the elastic buckle (26) and the connecting part (23).

6. The portable vacuum cleaner as described in claim 4, characterized in that: A baffle (313) is rotatably connected inside the dust cup (31). The baffle (313) covers the dust inlet (312). When the baffle (313) is subjected to the suction force of the main body (1), the baffle (313) flips up, exposing the dust inlet (312).

7. The portable vacuum cleaner as described in claim 1, characterized in that: The roller brush body (24) includes a brush shaft (241), a first brush bristle (242), and a second brush bristle (243); The brush shaft (241) is rotatably connected in the brush groove (211), and one end of the brush shaft (241) is connected to the second motor (25); The first bristle (242) is wound around the front half of the brush shaft (241) along a first spiral curve, and the second bristle (243) is wound around the rear half of the brush shaft (241) along a second spiral curve. The spiral directions of the first spiral curve and the second spiral curve are opposite. The second air inlet (221) faces the center of the brush shaft (241).

8. The portable vacuum cleaner as described in claim 1, characterized in that: The main body (1) is equipped with a storage battery (14), and the second motor (25) is electrically connected to the storage battery (14); The front end of the main body (1) is provided with a power supply interface (12) that is electrically connected to the battery (14). The electric roller brush (2) is provided with a first power supply connector (231). When the electric roller brush (2) is connected to the main body (1), the first power supply connector (231) abuts against the power supply interface (12) to achieve electrical connection.

9. The portable vacuum cleaner as described in claim 8, characterized in that: The portable vacuum cleaner also includes an extension accessory. When the main body (1) is removed from the electric roller brush (2), the extension accessory can be installed and connected to the front end of the main body (1) for use with the main body (1). The expansion accessories include at least one of the following: The first type: a vacuum head assembly (4), which includes an inlet nozzle (41), a second filter assembly (43), and a first connecting shell (42) that runs through the front and back. One end of the first connecting shell (42) is connected to the inlet nozzle (41), and the other end is detachably connected to the front end of the main body (1); The second filter assembly (43) is disposed at the front end of the main body (1) and located inside the first connecting shell (42), which is used for dust collection; The second type: a flat suction head assembly (5), which includes a brush head (52), a flat tube (51), a third filter assembly (57), and a second connecting shell (55) that runs through the front and back. The brush head (52) is slidably sleeved on the outer periphery of the flat tube (51). The front end of the flat tube (51) is provided with a first fastening position (53), and the flat tube (51) is provided with a second fastening position (54). The second fastening position (54) is located behind the first fastening position (53). The first fastening position (53) and the second fastening position (54) are used to hold the brush head (52). The flat tube (51) is inserted at the front end of the second connecting shell (55), and the rear end of the second connecting shell (55) is detachably connected to the front end of the main body (1). The third filter assembly (57) is disposed at the front end of the main body (1) and located inside the second connecting shell (55), which is used for dust collection; The third type: a lint removal assembly (6), which includes a housing (61), a rotary blade (62), a third motor (63), and a fourth filter assembly (64). The third motor (63) and the rotating blade (62) are disposed inside the housing (61), and the third motor (63) is connected to and controls the rotation of the rotating blade (62); The bottom end face of the outer shell (61) has several through holes, and the rotating blade (62) is located on the top side of the through holes; The side of the outer shell (61) is provided with a host interface, which is detachably connected to the front end of the host body (1). A second power supply connector (66) is provided on the end face of the host interface. The second power supply connector (66) is electrically connected to the third motor (63). The second power supply connector (66) is used to abut against the power supply interface (12) to achieve electrical connection. The fourth filter component (64) is located at the host interface and inside the housing (61); The outer casing (61) is provided with a dust collection chamber (611), which is located in front of the fourth filter assembly (64); The fourth type: long suction rod assembly (7), which includes a long suction rod (71), an electric floor brush (72), a fifth filter assembly and a third connecting shell (73) that runs through the front and back. The long suction rod (71) has a hollow structure. One end is rotatably connected to the electric floor brush (72), and the other end is connected to the front end of the third connecting shell (73). The rear end of the third connecting shell (73) is detachably connected to the front end of the main body (1). The third power supply connector is provided on the rear end face of the third connecting shell (73). The third power supply connector is electrically connected to the electric floor brush (72). The third power supply connector is used to abut against the power supply interface (12) to achieve electrical connection. The fifth filter component is disposed at the front end of the main body (1) and located inside the third connecting shell (73), which is used for dust collection.

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