A dust guiding and collecting structure and a vacuum cleaner having the same.

Abstract

This utility model discloses a dust guiding and collecting structure, relating to the field of vacuum cleaner technology. It includes a base, a guide section, and a dust collection box. The base has a first through hole, and a guide block with a second through hole coaxial with the first through hole is also present on the base. The guide section fits against the surface of the base to form a sealed receiving space, and the guide block is located within this space. The inner wall of the guide section has a circular cross-sectional shape, and a gap exists between the guide block and the inner wall of the guide section. A first airflow guide is provided on the outer wall of the guide section, guiding the airflow along a tangent parallel to the inner wall of the guide section. A connecting hole is provided at the top of the guide section, and the dust collection box is installed on the top of the guide section, communicating with the interior of the dust collection box through the connecting hole. The beneficial effect of this utility model is that by guiding the airflow, it reduces the amount of dust entering the filter, thus reducing the frequency of filter cleaning.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a dust guiding and collecting structure and a vacuum cleaner having the same. Background Technology

[0002] Vacuum cleaners use a motor to create negative pressure inside the vacuum cleaner's cavity, drawing air in from the inlet and expelling it from the outlet. During this process, dust in the airflow is filtered through a filter, thus cleaning the object to be cleaned.

[0003] Specifically, such as Figure 1 As shown, in a traditional portable vacuum cleaner, the vacuum cleaner motor 3 generates negative pressure in the vacuum cleaner's cavity. Airflow enters through the vacuum cleaner's inlet 1, passes through the filter 4, and exits through the outlet 2. During this process, the airflow duct runs directly through the filter 4. When dealing with ultrafine and ultralight dust, all the dust particles are adsorbed onto the filter 4, easily causing the filter 4 to become clogged. This results in a rapid decrease in the amount of airflow that can pass through the filter 4, requiring frequent cleaning of the clogged filter. This leads to a poor user experience and affects work efficiency. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a dust guiding and collecting structure and a vacuum cleaner having the same, so as to solve the above problems.

[0005] This utility model provides a dust guiding and collecting structure, including a base, a guide part, and a dust collection box. The base has a first through hole, and a guide block is provided on the base. The guide block has a second through hole coaxial with the first through hole. The guide part is fitted to the surface of the base to form a sealed receiving space, and the guide block is located in the receiving space. The cross-sectional shape of the inner wall of the guide part is circular, and there is a gap between the guide block and the inner wall of the guide part. The outer wall of the guide part has a first guide part for air intake. The first guide part guides the airflow into the guide part along a tangent direction parallel to the inner wall of the guide part. The top of the guide part has a connecting hole, and the dust collection box is installed on the top of the guide part. The guide part communicates with the interior of the dust collection box through the connecting hole.

[0006] Optionally, the guide portion is at least partially tapered in the extension direction of the connecting hole, and the connecting hole is opened at the tip of the guide portion.

[0007] Optionally, a side air vent is provided on the outer wall of the guide portion, the first guide portion is provided at the side air vent, and a guide air passage is provided on the first guide portion to connect the side air vent and the outside of the guide portion, the extension direction of the guide air passage is parallel to the tangential direction of the cross section of the guide portion.

[0008] Optionally, there are multiple air guide blocks, and the number of guide parts is the same as the number of air guide blocks. The multiple guide parts are attached to the surface of the base to form multiple receiving spaces, and the multiple guide parts are distributed in a circular pattern.

[0009] Optionally, the dust collection box and the guide section are detachably connected.

[0010] This utility model also provides a vacuum cleaner, including a vacuum cleaner body and a dust guiding and collecting structure as described above. The vacuum cleaner body has an air inlet and an air outlet. The dust collection box of the dust guiding and collecting structure is close to the air inlet, and the base is close to the air outlet. The first guide part of the guide part is connected to the air inlet, and the first through hole of the base is connected to the air outlet, so that the airflow flows in through the air inlet, passes through the first guide part of the guide part and the first through hole of the base in sequence, and is discharged through the air outlet.

[0011] Optionally, the vacuum cleaner body includes an upper shell and a lower shell, the dust guiding and collecting structure is fixedly installed on the lower shell, the upper shell and the lower shell enclose a space to accommodate the dust guiding and collecting structure, the air inlet is located on the upper shell, the air outlet is located on the lower shell, and the upper shell and the lower shell are detachably connected.

[0012] Optionally, a second flow guide is provided inside the upper housing between the air inlet and the dust guiding and collecting structure. The second flow guide has a flow guide opening, and the flow guide opening extends toward the inner wall of the upper housing. The cross-sectional shape of the inner wall of the upper housing is at least partially arc-shaped.

[0013] Optionally, the dust collection box has two opposing end faces. The dust collection box is connected to the communication hole of the guide part through one of the end faces. A rubber dust baffle is provided on the other end face of the dust collection box. The rubber dust baffle matches the shape of the guide port. The rubber dust baffle is used to block the guide port and can deform under the negative pressure in the upper housing to open the guide port.

[0014] Optionally, a guide plate is also provided on the end face of the dust collection box. The guide plate is located on the side of the rubber dust baffle and is used to guide the airflow so that the airflow flows along the arc direction of the inner wall of the upper shell.

[0015] The beneficial effects of this utility model are as follows: it changes the airflow direction in the vacuum cleaner. The airflow enters the guide section through the first guide section in a tangential direction parallel to the inner wall of the guide section, forming a vortex in the guide section. During the process of the airflow drifting in a vortex manner, the dust in the airflow adheres to the inner wall of the guide section under centrifugal force and drifts, and is finally guided into the dust collection box, reducing the dust entering the filter, thereby reducing the frequency of filter cleaning, improving user experience and increasing work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an existing vacuum cleaner.

[0018] Figure 2 This is a schematic diagram of a dust guiding and collecting structure according to the present invention.

[0019] Figure 3 This is an exploded structural diagram of a dust guiding and collecting structure according to the present invention.

[0020] Figure 4 This is a schematic diagram of the base in a dust guiding and collecting structure according to the present invention.

[0021] Figure 5 This is a schematic diagram of the base and guide section in a dust guiding and collecting structure according to this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of a vacuum cleaner according to the present invention.

[0023] Figure 7 This is a cross-sectional schematic diagram of a vacuum cleaner according to the present invention.

[0024] Figure 8 This is a partial structural diagram of a vacuum cleaner according to the present invention, showing the structure excluding the upper shell.

[0025] Figure 9 This is a magnified view of a portion of point A in Figure 8.

[0026] Figure 10 This is a schematic diagram of the upper shell of a vacuum cleaner according to the present invention.

[0027] Figure 11This is a structural schematic diagram of a vacuum cleaner according to another perspective of the present invention.

[0028] Figure 12 for Figure 11 A magnified view of a section at point B.

[0029] In the picture: 1. Air inlet; 2. Air outlet; 3. Vacuum cleaner motor; 4. Filter. Dust guiding and collecting structure 10, base 11, first through hole 111, air guide block 112, second through hole 1121, upper surface 113, lower surface 114, guide part 12, accommodating space 121, first flow guide part 122, flow guide air passage 1221, connecting hole 123, dust collection box 13, connecting part 131, third through hole 1311, mounting plate 14, rubber dust baffle 15, guide plate 16; Vacuum cleaner body 20, air inlet 21, air outlet 22, upper housing 23, snap-fit ​​groove 231, arc-shaped protrusion 232, notch 233, second air guide 234, first baffle 2341, second baffle 2342, air guide 2343, lower housing 24, snap-fit ​​part 241, arc-shaped groove 2411, inclined surface 2412, battery 25, vacuum cleaner motor 26, filter 27. Detailed Implementation

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0031] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0032] The terms "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this utility model is usually placed in during use. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] like Figures 2 to 5 As shown in the figure, this embodiment provides a dust guiding and collecting structure 10, including a base 11, a mounting plate 14, a guide part 12, and a dust collection box 13. The base 11 has an upper surface 113 and a lower surface 114 opposite to each other. A plurality of first through holes 111 are provided on the base 11. The two ends of the first through holes 111 are located on the upper surface 113 and the lower surface 114 of the base 11, respectively. The upper surface 113 of the base 11 is provided with air guide blocks 112 in the same number as the first through holes 111. The air guide blocks 112 are cylindrical and have second through holes 1121 coaxial with the first through holes 111. The lower surface 114 of the base 11 is used to fit against the filter so that the airflow flowing through the first through holes 111 of the base 11 can flow into the filter.

[0036] The guide portion 12 is formed on the mounting plate 14. The mounting plate 14 is attached to and fixedly connected to the upper surface 113 of the base 11. Multiple guide portions 12 are formed on the surface of the mounting plate 14 away from the base 11 in a direction away from the base 11. The multiple guide portions 12 are distributed in a circle on the mounting plate 14. Depending on the number of guide portions 12 and the size of the mounting plate 14, the multiple guide portions 12 can be divided into multiple rings. Each ring of guide portions 12 is distributed in a circle on the mounting plate 14. In this embodiment, the guide portions 12 are distributed in one ring, and a guide portion 12 is also provided in the middle of one ring of guide portions 12. When the mounting plate 14 is attached to the upper surface 113 of the base 11, multiple closed receiving spaces 121 are formed between the multiple guide parts 12 and the upper surface 113 of the base 11, and multiple guide blocks are respectively located in the multiple receiving spaces 121. The cross-sectional shape of the inner wall of the guide part 12 is circular. For example, the guide part 12 is a hollow cylinder. The air guide block 112 is located in the middle of the receiving space 121 inside the guide part 12. The height of the air guide block 112 is lower than the height of the guide part 12, and there is a gap between the air guide block 112 and the inner wall of the guide part 12 to allow airflow. The outer wall of the guide section 12 is provided with a first guide section 122 for guiding air into the guide section 12. The first guide section 122 guides the airflow drawn in by the air inlet of the vacuum cleaner into the guide section 12 along a tangential direction parallel to the inner wall of the guide section 12, so that the airflow adapts to the shape of the inner wall of the guide section 12 and moves in a swirling motion. Specifically, a side air vent is opened on the outer wall of the guide section 12, and the first guide section 122 is located at the side air vent. A guide air passage 1221 is opened on the first guide section 122 to connect the side air vent and the outside of the guide section 12. The extension direction of the guide air passage 1221 is parallel to the tangential direction of the cross-section of the guide section 12. A connecting hole 123 is opened at the top of the guide section 12, and a dust collection box 13 is installed on the top of the guide section 12. Multiple guide sections 12 are connected to the interior of the dust collection box 13 through the connecting hole 123. The dust collection box 13 is used to collect dust in the airflow.

[0037] This embodiment provides a dust guiding and collecting structure 10, which changes the airflow direction in the vacuum cleaner compared to a traditional vacuum cleaner. When the dust guiding and collecting structure 10 is installed in the vacuum cleaner, the dust collection box 13 is close to the air inlet of the vacuum cleaner, the lower surface 114 of the base 11 faces the filter, and the base 11 is connected to the vacuum cleaner motor through the first through hole 111. The vacuum cleaner motor generates negative pressure, causing the airflow carrying dust to enter from the air inlet of the vacuum cleaner. After passing through the first guide section 122 of the guide section 12, the airflow enters the receiving space 121 within the guide section 12. Since the cross-section of the inner wall of the guide section 12 is circular, the airflow adapts to the shape of its inner wall within the guide section 12 under the guidance of the first guide section 122. When a swirling flow is formed, the dust particles in the airflow, due to their weight, drift against the inner wall of the guide section 12 under centrifugal force. Since the vacuum cleaner's air inlet is facing downwards towards the object to be cleaned, and the dust collection box 13 is located below the guide section 12 with the ground as the reference point, the dust particles in the airflow move into the dust collection box 13 under their own gravity and the swirling effect. The airflow with separated dust flows through the second through hole 1121 of the guide block 112 and the first through hole 111 of the base 11 to the filter on the lower surface 114 of the base 11. Because some of the dust in the airflow has been separated, less dust enters the filter. Compared to the traditional method of airflow directly through the filter in vacuum cleaners, this method reduces the amount of dust in the airflow passing through the filter by guiding the airflow direction, avoiding easy clogging of the filter and the need for frequent cleaning, thus improving the user experience. Furthermore, because the filter is not easily clogged, the vacuum cleaner has high working efficiency.

[0038] In some embodiments, such as Figure 5 As shown, the guide portion 12 is at least partially tapered in the extension direction of the connecting hole 123, with the connecting hole 123 located at the tip of the guide portion 12. This allows airflow to flow into the guide portion 12 from the first guide portion 122 and out through the connecting hole 123. As the airflow exits, the cross-sectional area of ​​the guide portion 12 gradually decreases in this direction, accelerating the airflow velocity within the guide portion 12 and thus improving the separation efficiency of dust from the airflow. Specifically, in this embodiment, the guide portion 12 is divided into a lower part and an upper part in the direction gradually moving away from the base 11. The lower part is a hollow cylinder, and the upper part is a cone. The shape of the bottom of the upper part is consistent with the cross-sectional shape of the lower part, and the upper and lower parts are an integral structure. Alternatively, the guide portion 12 is a cone, with its bottom surface fitting against the upper surface 113 of the base 11, and the connecting hole 123 located at the tip of the guide portion 12.

[0039] Furthermore, to facilitate cleaning of the dust inside the dust collection box 13, the dust collection box 13 and the guide part 12 are detachably connected in this embodiment. Specifically, as shown... Figure 1 and Figure 2As shown, multiple connecting portions 131 extend from the surface where the dust collection box 13 connects to the guide portion 12. Each connecting portion 131 has a third through hole 1311, the diameter of which gradually decreases in the direction away from the guide portion 12. The guide portion 12 is made of plastic. As the guide portion 12 extends into the third through hole 1311 of the connecting portion 131, the diameter of the third through hole 1311 gradually decreases, causing the guide portion 12 to deform appropriately to fit the third through hole 1311. Under the elastic action of the guide portion 12, it engages with the third through hole 1311 of the connecting portion 131, creating an interference fit between the guide portion 12 and the connecting portion 131. Since the dust collection box 13 collects dust, this method does not significantly change the weight of the dust collection box 13. This ensures that the dust collection box 13 and the guide portion 12 are firmly connected and detachable.

[0040] In summary, the dust guiding and collecting structure 10 provided in this embodiment guides the airflow entering the vacuum cleaner, causing the airflow to swirl within the guide section 12. During this swirling motion, dust particles are separated from the airflow and collected by the dust collection box 13, reducing the amount of dust entering the filter. This decreases the frequency of filter cleaning, improves the user experience, and avoids the problem of low vacuum cleaner efficiency caused by easy filter clogging. Furthermore, the dust collection box 13 and the guide section 12 are detachably connected, allowing for periodic cleaning of the dust in the dust collection box 13 to prevent excessive dust from moving into the filter.

[0041] like Figures 6 to 8 As shown, this embodiment also provides a vacuum cleaner, including a vacuum cleaner body 20 and a dust guiding and collecting structure 10 as described above. The vacuum cleaner body 20 includes a housing and a battery 25, a vacuum cleaner motor 26 and a filter 27 located inside the housing. The battery 25 is electrically connected to the vacuum cleaner motor 26 to supply power to the vacuum cleaner motor 26. The filter 27 is installed between the vacuum cleaner motor 26 and the lower surface 114 of the base 11. The vacuum cleaner body 20 has an air inlet 21 and an air outlet 22. The air inlet 21 and the air outlet 22 of the vacuum cleaner body 20 are connected through the dust guiding and collecting structure 10. The dust collection box 13 of the dust guiding and collecting structure 10 is close to the air inlet 21, and the base 11 is close to the air outlet 22. The first guide part 122 of the guide part 12 is connected to the air inlet 21, and the first through hole 111 of the base 11 is connected to the air outlet 22. The airflow flows in through the air inlet 21 and passes through the first guide part 122 of the guide part 12, the second through hole 1121 of the guide block, the first through hole 111 of the base 11, the filter 27 and the vacuum cleaner motor 26 in sequence, and then is discharged through the air outlet 22.

[0042] In the vacuum cleaner provided in this embodiment, a dust guiding and collecting structure 10 is configured between the air inlet 21 of the vacuum cleaner body 20 and the filter 27. The dust guiding and collecting structure 10 collects dust in the airflow flowing towards the filter 27, reduces the amount of dust in the airflow flowing towards the filter 27, prevents the filter 27 from being easily blocked, avoids the problem of cleaning the filter 27, and improves the user experience.

[0043] Furthermore, such as Figures 6 to 8 and Figure 10 As shown, the vacuum cleaner body 20 includes an upper housing 23 and a lower housing 24. The battery 25, vacuum cleaner motor 26, and filter 27 are located inside the lower housing 24. The dust guiding and collecting structure 10 is fixedly installed on the lower housing 24 via a base 11. Since the guide part 12 and the dust collection box 13 are fixedly connected, and the guide part 12 and the base 11 are fixedly connected, when the base 11 is fixedly installed on the lower housing 24, both the guide part 12 and the dust collection box 13 remain fixed to the lower housing 24. The upper housing 23 and the lower housing 24 enclose a space to accommodate the dust guiding and collecting structure 10. When the upper housing 23 and the lower housing 24 are enclosed, the dust guiding and collecting structure 10 is located in the upper housing 23 and there is a gap between the dust guiding and collecting structure 10 and the inner wall of the upper housing 23, so as to form an air passage between the inner wall of the upper housing 23 and the dust guiding and collecting structure 10. The air inlet 21 is located on the top of the upper housing 23, and the air outlet 22 is located on the side wall of the lower housing 24.

[0044] like Figure 11 and Figure 12As shown, the air inlet 21 of the upper housing 23 is located at the top of the upper housing 23 and the extension direction of the air inlet 21 is approximately the same as the extension direction of the connecting hole 123. Meanwhile, a second guide section 234 is provided inside the upper housing 23 between the air inlet 21 and the dust collection box 13 of the dust guiding and collecting structure 10. A guide port 2343 is provided on the second guide section 234 and the extension direction of the guide port 2343 is towards the inner wall of the upper housing 23. Specifically, the second airflow guide 234 includes a first baffle 2341 and a second baffle 2342. The first baffle 2341 and the second baffle 2342 are located below the air inlet 21 of the upper housing 23, and both the first baffle 2341 and the second baffle 2342 are arranged with their surfaces perpendicular to the extending direction of the air inlet 21. When the first baffle 2341 and the second baffle 2342 are side-fitted, the shape formed is the same as the cross-sectional shape of the inner wall of the upper housing 23, but the first baffle 2341 and the second baffle 2342 are arranged in parallel. Within the upper housing 23, with a certain height difference between it and the second baffle 2342, a first baffle 2341 is positioned above the second baffle 2342, thereby forming a guide port 2343 between the first baffle 2341 and the second baffle 2342. The guide port 2343 extends towards the inner wall of the upper housing 23. When negative pressure is generated inside the vacuum cleaner housing by the vacuum cleaner motor 26, the airflow flows in through the air inlet 21 of the upper housing 23 and turns at the guide port 2343 of the second guide section 234, flowing towards the inner wall of the upper housing 23. The cross-sectional shape of the inner wall of the upper housing 23 is at least partially arc-shaped. When the airflow passes through the second guide section 234 and flows towards the inner wall of the upper housing 23, the airflow, guided by the arc shape of the inner wall of the upper housing 23, swirls within the upper housing 23. As described above, dust particles within the airflow adhere to the inner wall of the upper housing 23 under centrifugal force. The guide section 12 is located in the middle of the upper housing 23, ensuring that the airflow entering the guide section 12 has already undergone initial dust separation, reducing the amount of dust entering the guide section 12 and consequently reducing the amount of dust entering the filter 27. This further reduces the risk of the filter 27 being easily clogged, lowers the frequency of filter 27 cleaning, and improves the user experience. The inner wall of the upper housing 23 can also be cylindrical or conical, while the outer wall of the upper housing 23 is designed according to aesthetic requirements.

[0045] like Figure 8 , Figure 11 and Figure 12As shown, to ensure the airflow within the outer casing is swirling, the vacuum cleaner provided in this embodiment has been further improved. The dust collection box 13 has two opposing end faces. The dust collection box 13 is connected to the communication hole 123 of the guide part 12 through one end face. A rubber dust baffle 15 is provided on the other end face of the dust collection box 13. The rubber dust baffle 15 is fixedly installed on the surface of the dust collection box 13 and extends in a direction away from the surface. The shape of the rubber dust baffle 15 matches the guide port 2343 of the second guide part 234 in the upper housing 23. The rubber dust baffle 15 is used to block the guide port 2343 and can deform under the negative pressure in the upper housing 23 to open the guide port 2343. When the vacuum cleaner motor 26 is started, a negative pressure is generated in the upper housing 23, which generates suction force on the rubber dust baffle 15, causing the rubber dust baffle 15 to tilt towards the end face of the dust collection box 13. At this time, the guide port 2343 of the second guide part 234 is in an open state. After cleaning, when the rubber dust baffle 15 rebounds to its original position under its own elasticity, the rubber dust baffle 15 blocks the guide port 2343 of the second guide section 234. This can prevent the dust accumulated inside the upper housing 23 under the centrifugal force of the airflow from drifting out of the guide port 2343 of the second guide section 234 when the vacuum cleaner is not in use, thus preventing pollution to the surrounding environment.

[0046] Meanwhile, two guide plates 16 perpendicular to the end face of the dust collection box 13 are also provided. The two guide plates 16 are located on opposite sides of the rubber dust baffle 15, and the guide plates 16 are arc-shaped. The guide plates 16 are used to guide the airflow. When the airflow flows into the guide port 2343 of the second guide section 234 through the air inlet 21 of the upper housing 23, the airflow is guided by the two guide plates 16 to flow along the arc direction of the inner wall of the upper housing 23. This makes it easier to generate swirling airflow in the upper housing 23, thereby better separating dust in the upper housing 23.

[0047] As described above, both the upper housing 23 and the dust collection box 13 can collect some dust. However, if too much dust accumulates in the upper housing 23 and the dust collection box 13, this dust will flow towards the filter 27 with the airflow. Therefore, it is necessary to clean the dust in the upper housing 23 and the dust collection box 13 regularly. To accommodate the dust cleaning of the upper housing 23 and the dust collection box 13, the upper housing 23 and the lower housing 24 in this embodiment are detachably connected. When the upper housing 23 and the lower housing 24 are disassembled, the dust accumulated in the upper housing 23 can be cleaned directly. At this time, the dust collection box 13 and the guide part 12 are located outside the lower housing 24. Separating the dust collection box 13 and the guide part 12 allows for the cleaning of the dust in the dust collection box 13.

[0048] Specifically, such as Figures 8 to 10As shown, the lower housing 24 has a snap-fit ​​portion 241 on the outer wall at the connection with the upper housing 23. The snap-fit ​​portion 241 extends circumferentially along the outer wall of the lower housing 24. An arc-shaped groove 2411 is formed in the middle of the snap-fit ​​portion 241. The opening direction of the arc-shaped groove 2411 is away from the outer wall of the lower housing 24. One end of the arc-shaped groove 2411 and the corresponding end of the snap-fit ​​portion 241 are inclined surfaces 2412. The inclined surfaces 2412 gradually slope towards the outer wall of the lower housing 24 from the end away from the arc-shaped groove 2411. Correspondingly, the upper housing 23 has a snap-fit ​​groove 231 on the inner wall at the connection with the lower housing 24. The snap-fit ​​groove 231 has a notch 233 on the side wall away from the air inlet 21, and the length of the notch 233 is not less than the length of the snap-fit ​​part 241. The bottom of the snap-fit ​​groove 231 extends in a direction away from the bottom with an arc-shaped protrusion 232. The shape of the arc-shaped protrusion 232 is adapted to the shape of the arc-shaped groove 2411 of the snap-fit ​​part 241. When assembling the upper housing 23 and the lower housing 24, first align the notch 233 of the snap-fit ​​groove 231 of the upper housing 23 with the snap-fit ​​part 241. After the snap-fit ​​part 241 passes through the notch 233, it is located in the snap-fit ​​groove 231. Then, rotate the upper housing 23 and the lower housing 24 relative to each other. The snap-fit ​​part 241 moves in the snap-fit ​​groove 231 as the lower housing 24 rotates. The arc-shaped protrusion 232 at the bottom of the snap-fit ​​groove 231 first contacts the inclined surface 2412 of the snap-fit ​​part 241, and the upper housing 23 can... Made of plastic, the arc-shaped protrusion 232 abuts against the inclined surface 2412 of the latching part 241 and gradually moves towards the arc-shaped groove 2411 of the latching part 241. As the upper housing 23 is made of plastic, it can deform appropriately to adapt to the height change of the arc-shaped protrusion 232 on the inclined surface 2412 of the latching part 241. When the arc-shaped protrusion 232 in the latching groove 231 moves into the arc-shaped groove 2411 of the latching part 241, the upper housing 23 and the lower housing 24 remain fixed. When disassembling the upper housing 23 and the lower housing 24, rotate the upper housing 23 and the lower housing 24 in reverse. The arc-shaped protrusion 232 in the snap-fit ​​groove 231 of the upper housing 23 moves to the outside of the arc-shaped groove 2411 of the snap-fit ​​part 241, and when the snap-fit ​​part 241 is aligned with the notch 233 of the snap-fit ​​groove 231, the upper housing 23 and the lower housing 24 can be separated, and the dust in the upper housing 23 and the dust collection box 13 can be cleaned.

[0049] In summary, the vacuum cleaner provided in this embodiment can perform two dust removal processes through the outer shell and the guide part 12, reducing the dust in the airflow entering the filter 27 and preventing the filter 27 from being easily clogged. Furthermore, the upper shell 23 and the lower shell 24 are detachably connected, allowing for convenient cleaning of the dust in the upper shell 23 and the dust collection box 13, making it easy to use.

[0050] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A dust guiding and collecting structure (10), characterized in that: The system includes a base (11), a guide section (12), and a dust collection box (13). The base (11) has a first through hole (111) and a guide block (112) with a second through hole (1121) coaxial with the first through hole (111). The guide section (12) fits against the surface of the base (11) to form a sealed receiving space (121), and the guide section is located within the receiving space (121). The inner wall of the guide section (12) has a circular cross-sectional shape. There is a gap between the block (112) and the inner wall of the guide part (12); the outer wall of the guide part (12) is provided with a first guide part (122) for air intake, the first guide part (122) guides the airflow into the guide part (12) along a tangential direction parallel to the inner wall of the guide part (12), the top of the guide part (12) is provided with a connecting hole (123), the dust collection box (13) is installed on the top of the guide part (12), and the guide part (12) is connected to the interior of the dust collection box (13) through the connecting hole (123).

2. The dust guiding and collecting structure (10) according to claim 1, characterized in that: The guide portion (12) is at least partially tapered in the extension direction of the connecting hole (123), and the connecting hole (123) is opened at the tip of the guide portion (12).

3. The dust guiding and collecting structure (10) according to claim 1, characterized in that: A side air vent is provided on the outer side wall of the guide part (12), and the first guide part (122) is provided at the side air vent. A guide air passage (1221) is provided on the first guide part (122) to connect the side air vent and the outside of the guide part (12). The extension direction of the guide air passage (1221) is parallel to the tangential direction of the cross section of the guide part (12).

4. The dust guiding and collecting structure (10) according to claim 1, characterized in that: The number of air guide blocks (112) is multiple, and the number of guide parts (12) is the same as the number of air guide blocks (112). Multiple guide parts (12) are attached to the surface of the base (11) to form multiple receiving spaces (121). The multiple guide parts (12) are distributed in a circular pattern.

5. The dust guiding and collecting structure (10) according to claim 1, characterized in that: The dust collection box (13) and the guide part (12) are detachably connected.

6. A vacuum cleaner, characterized in that: The vacuum cleaner body (20) includes a dust collection structure (10) as described in any one of claims 1-5. The vacuum cleaner body (20) has an air inlet (21) and an air outlet (22). The dust collection box (13) of the dust collection structure (10) is close to the air inlet (21), and the base (11) is close to the air outlet (22). The first guide part (122) of the guide part (12) is connected to the air inlet (21), and the first through hole (111) of the base (11) is connected to the air outlet (22), so that the airflow flows in through the air inlet (21), passes through the first guide part (122) of the guide part (12) and the first through hole (111) of the base (11) in sequence, and is discharged through the air outlet (22).

7. The vacuum cleaner according to claim 6, characterized in that: The vacuum cleaner body (20) includes an upper shell (23) and a lower shell (24). The dust guiding and collecting structure (10) is fixedly installed on the lower shell (24). The upper shell (23) and the lower shell (24) enclose a space to accommodate the dust guiding and collecting structure (10). The air inlet (21) is located on the upper shell (23), and the air outlet (22) is located on the lower shell (24). The upper shell (23) and the lower shell (24) are detachably connected.

8. The vacuum cleaner according to claim 7, characterized in that: The upper housing (23) is provided with a second guide section (234) between the air inlet (21) and the dust guiding and collecting structure (10). The second guide section (234) is provided with a guide port (2343). The extension direction of the guide port (2343) is toward the inner wall of the upper housing (23). The cross-sectional shape of the inner wall of the upper housing (23) is at least partially arc-shaped.

9. The vacuum cleaner according to claim 8, characterized in that: The dust collection box (13) has two opposite end faces. The dust collection box (13) is connected to the connecting hole (123) of the guide part (12) through one end face. A rubber dust baffle (15) is provided on the other end face of the dust collection box (13). The rubber dust baffle (15) matches the shape of the guide port (2343). The rubber dust baffle (15) is used to block the guide port (2343) and can deform under the negative pressure in the upper shell (23) to open the guide port (2343).

10. The vacuum cleaner according to claim 9, characterized in that: The dust collection box (13) is also provided with a guide plate (16) on its end face. The guide plate (16) is located on the side of the rubber dust baffle (15). The guide plate (16) is used to guide the airflow so that the airflow flows along the arc direction of the inner wall of the upper shell (23).

Images