A hand-held vacuum cleaner

Abstract

The application relates to a hand-held dust collector, which comprises a main body, a filtering component arranged in the main body, a dust suction cavity formed between the main body and the filtering component, a dust cleaning component, a scraping part arranged in the dust suction cavity, an operating part arranged outside the main body, a connecting part connecting the scraping part and the operating part, the connecting part comprising a first connecting part, a second connecting part and a third connecting part, one end of the first connecting part being connected with the scraping part, the other end of the first connecting part extending downward and being capable of penetrating through the bottom of the main body, one end of the second connecting part being connected with the other end of the first connecting part, the other end of the second connecting part being connected with one end of the third connecting part, the other end of the third connecting part extending upward and being connected with the operating part and being at least partially exposed outside the main body, and the operating part driving the scraping part to move up and down to clean the filtering component. The application can clean the filtering component without opening the main body, and can avoid the gap between the dust cleaning component and the main body during movement, thereby preventing dust leakage.

Description

Technical Field

[0001] This invention belongs to the field of vacuum cleaners, specifically relating to a handheld vacuum cleaner. Background Technology

[0002] In people's daily lives, with increasing demands for quality of life, greater attention is being paid to the hygiene of the home environment. Handheld vacuum cleaners are widely popular due to their convenience and portability. Handheld vacuum cleaners contain filters to separate air and dust. After a period of use, these filters become clogged with dust and other dirt, affecting suction efficiency. In existing technology, when the filter becomes clogged, the handheld vacuum cleaner needs to be opened to remove and clean it. However, to ensure ease of use, handheld vacuum cleaners are small, making the filter prone to clogging. Frequent removal of the filter for cleaning leads to very low cleaning efficiency and negatively impacts the user experience. There is a need for a handheld vacuum cleaner with a reasonable structure that does not require opening for cleaning.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a handheld vacuum cleaner for convenient cleaning of its internal filter components.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A handheld vacuum cleaner includes a main body and a filter component. The filter component is disposed within the main body for separating dust from the air. A suction cavity is formed between the outer side of the filter component and the inner side of the main body for storing the dust separated from the air.

[0007] The handheld vacuum cleaner also includes a dust cleaning component, which includes a scraping part, an operating part, and a connecting part. The scraping part is disposed inside the suction cavity and located on the outer peripheral surface of the filter component. The operating part is disposed outside the main body and connected to the scraping part through the connecting part. The connecting part includes a first connecting part, a second connecting part, and a third connecting part. One end of the first connecting part is connected to the scraping part, and the other end of the first connecting part extends downward and can pass through the bottom of the main body. One end of the second connecting part is connected to the other end of the first connecting part, and the other end of the second connecting part is connected to one end of the third connecting part. The other end of the third connecting part extends upward and is connected to the operating part. The third connecting part is at least partially exposed outside the main body. The operating part can drive the scraping part to move in the vertical direction to clean the outside of the filter component.

[0008] Preferably, the filter component has a filter surface located on its outer periphery, the scraper is located on the outer periphery of the filter surface, and the dust removal component has a first state and a second state. In the first state, the scraper is located at the upper end or above the filter component, and the first connecting part is located inside the main body. In the second state, the scraper moves to the lower end or below the filter component, and the first connecting part is at least partially moved out of the lower part of the main body.

[0009] Preferably, the main body is provided with a limiting structure, which cooperates with the connecting part to restrict the movement of the dust removal component in the vertical direction.

[0010] More preferably, the limiting structure includes a limiting post that extends in the vertical direction, and the first connecting part is located between the limiting post and the filter component, and the first connecting part cooperates with the limiting post.

[0011] Preferably, an elastic element is provided inside the main body, and the elastic element provides an elastic force to the dust removal component to move upward.

[0012] More preferably, the main body is provided with a limiting post that extends in the vertical direction, the first connecting part is provided with a mating part that is sleeved on the limiting post, and the elastic element is sleeved on the limiting post and located between the mating part and the main body.

[0013] More preferably, the main body has a placement space that protrudes from the outer peripheral surface of the main body, and the limiting post is located within the placement space.

[0014] More preferably, the first connecting portion is located at the opening of the placement space and covers the opening to make the inner circumferential surface of the body smooth.

[0015] In a further preferred embodiment, one end of the placement space is provided with a mounting hole, and the limiting post extends into the placement space through the mounting hole and is fixed to the main body.

[0016] More preferably, the limiting structure includes a limiting groove having a first groove formed on the outer surface of the main body and extending in the vertical direction, a second groove disposed at the bottom of the main body, and a third connecting part movably disposed in the first groove. When the scraping part is located at the upper end of the filter component, the second connecting part is housed in the second groove.

[0017] More preferably, the first groove also has a guide opening on the outside of the main body, the guide opening extends in the vertical direction and communicates with the second groove at the lower end of the first groove, the width of the guide opening is smaller than the width of the limiting groove, a guide portion protrudes from the outside of the third connecting portion, the shape of the guide portion matches the shape of the guide opening of the limiting groove, and the guide portion is movably disposed on the guide opening.

[0018] Preferably, the dust removal component further includes a compression section connected between the scraping section and the first connecting section, the compression section extending obliquely in the direction from the scraping section to the first connecting section.

[0019] Preferably, the main body includes a shell and a cover. The lower part of the shell has an outlet that communicates with the dust collection cavity. The cover is placed over the outlet. The cover has an opening that allows the first connecting part to pass through the main body. A sealing element is provided between the opening and the first connecting part.

[0020] Preferably, the scraping part is annular and made of elastic material; the connecting part is U-shaped; the scraping part, the connecting part, and the operating part are integrally formed.

[0021] Preferably, the scraping part is sleeved on the filter component, the filter surface is cylindrical, and the inner ring diameter of the scraping part is smaller than the diameter of the filter surface in its natural state. The scraping part is sleeved on the filter surface through elastic deformation, and the inner ring edge of the scraping part abuts against the outer surface of the filter surface.

[0022] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] This invention cleans the filter component by introducing a dust-cleaning component from the outside through the main body, without opening the main body, thus improving the cleaning efficiency of the handheld vacuum cleaner. By designing the structure of the dust-cleaning component, it ensures stable movement of the dust-cleaning component during dust removal, avoiding gaps between the dust-cleaning component and the main body that could lead to dust leakage. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of the handheld vacuum cleaner in the first state of the dust removal component in this embodiment;

[0025] Appendix Figure 2 This is a schematic diagram of the handheld vacuum cleaner in the second state of the dust removal component in this embodiment;

[0026] Appendix Figure 3 This is a cross-sectional schematic diagram of the handheld vacuum cleaner in the first state of the dust removal component in this embodiment;

[0027] Appendix Figure 4 This is a cross-sectional schematic diagram of the handheld vacuum cleaner in the second state of the dust removal component in this embodiment;

[0028] Appendix Figure 5 This is a schematic diagram of the internal structure of the shell in this embodiment;

[0029] Appendix Figure 6 This is a schematic diagram showing the bottom view of the handheld vacuum cleaner (with the cover open) when the dust removal component is in the first state in this embodiment;

[0030] Appendix Figure 7 This is a schematic diagram showing the bottom view of the handheld vacuum cleaner (with the cover open) when the dust removal component is in the second state in this embodiment.

[0031] In the above figures: 1. Main body; 11. Shell; 12. Cover; 13. Dust suction chamber; 14. Dust suction port; 15. Handle; 2. Filter component; 21. Filter surface; 31. Scraping part; 32. Operating part; 331. First connecting part; 3311. Fitting part; 332. Second connecting part; 333. Third connecting part; 3331. Guide part; 34. Compression part; 41. Limiting post; 421. First groove; 422. Second groove; 423. Guide opening; 43. Placement space; 431. Mounting hole; 44. Elastic element. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. 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.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] like Figure 1-4 As shown, a handheld vacuum cleaner includes a main body 1, a filter component 2, and a dust removal component. The filter component 2 is disposed inside the main body 1, and a dust collection cavity 13 is formed between the outer side of the filter component 2 and the inner side of the main body 1. The dust collection cavity 13 is used to store dust separated from the air.

[0036] The main body 1 includes a shell 11 and a cover 12. The shell 11 is approximately cylindrical in shape. The dust collection chamber 13 is located inside the shell 11. A dust outlet communicating with the dust collection chamber 13 is opened at the lower part of the shell 11. The cover 12 is placed on the dust outlet. The shell 11 is also provided with a dust suction port 14 and a handle 15. The dust suction port 14 and the handle 15 are disposed opposite each other on the outer peripheral surface of the shell 11, and the dust suction port 14 communicates with the dust collection chamber 13.

[0037] The filter element 2 is used to separate dust from the air. The filter element 2 is approximately cylindrical in shape and has a filter surface 21 located on its outer periphery. The filter surface 21 is cylindrical and located on the circumference of the filter element 2. Typically, the filter surface 21 has a mesh structure. The filter element 2 is located at the center of the main body 1 and the axes of the two coincide. The filter surface 21 is opposite to the inner wall of the housing 11.

[0038] like Figure 3 , 4As shown, the cleaning component extends from the outside of the main body 1 into the suction chamber 13 to clean the filter component 2. The cleaning component includes a scraping part 31, an operating part 32, and a connecting part. The scraping part 31 is disposed within the suction chamber 13. The scraping part 31 can contact the outer peripheral surface of the filter component 2, or there can be a certain gap between the scraping part 31 and the outer peripheral surface of the filter component 2. The operating part 32 is disposed outside the main body 1 and connected to the scraping part 31 through the connecting part. The movement of the operating part 32, transmitted through the connecting part, can drive the scraping part 31 to move in the vertical direction, and the vertical movement of the scraping part 31 cleans the outside of the filter component 2. The cleaning component has a first state and a second state. In the first state, the scraping part 31 is located at the upper end or above the filter component 2, that is, the contact surface between the scraping part 31 and the filter component 2 is higher than the upper edge of the filter surface 21. In the second state, the scraping part 31 moves to the lower end or below the filter component 2, that is, the contact surface between the scraping part 31 and the filter component 2 is lower than the lower edge of the filter surface 21. The scraping part 31 moves downward to change it from the first state to the second state. During this process, the scraping part 31 scrapes the dust on the filter surface 21 toward the dust removal port side of the suction chamber 13.

[0039] During the movement of the scraping part 31 relative to the filter component 2, it remains in contact with the outer periphery of the filter surface 21 as it passes the filter surface 21. This allows the scraping part 31 to scrape away the dust adhering to the surface of the filter surface 21. The scraping part 31 is annular and is fitted onto the filter component 2. When the scraping part 31 needs to contact the filter surface 21 for scraping, its inner ring diameter is smaller than the diameter of the filter surface 21 in its natural state. The scraping part 31 is made of elastic material, and after being expanded by elastic deformation, it fits onto the filter surface 21. Due to its own elastic force, the inner ring edge of the scraping part 31 abuts against the outer surface of the filter surface 21.

[0040] The operating part 32 has a plate-shaped structure. The plate-shaped operating part 32 is perpendicular to the outer periphery of the main body 1 (i.e., extends radially along the housing 11), and its upper and lower surfaces are provided with anti-slip stripes.

[0041] The connecting parts include a first connecting part 331, a second connecting part 332, and a third connecting part 333, all of which are strip-shaped structures. One end of the first connecting part 331 is connected to the scraping part 31, and the other end of the first connecting part 331 extends downward and can pass through the bottom of the main body 1. The connecting parts are U-shaped in general, with the second connecting part 332 being the connecting segment in the middle of the "U". The cover 12 has an opening that allows the first connecting part 331 to pass through the main body 1. A sealing element is provided between the opening and the first connecting part 331, and the sealing element is fixedly connected to the cover 12. When the first connecting part 331 moves, the sealing element always stays in contact with the first connecting part 331 to prevent dust from escaping. One end of the second connecting part 332 is connected to the other end of the first connecting part 331, and the other end of the second connecting part 332 is connected to one end of the third connecting part 333. The other end of the third connecting part 333 extends upward and connects to the operating part 32. The third connecting part 333 is at least partially exposed outside the main body 1. In this embodiment, the first connecting portion 331 and the third connecting portion 333 extend in a straight line, and the second connecting portion 332 extends in a straight line in the radial direction of the housing 11. In the first state, the first connecting portion 331 of the dust removal component is located inside the main body 1; in the second state, the first connecting portion 331 of the dust removal component is at least partially moved out to the underside of the main body 1.

[0042] The dust removal component also includes a compression section 34, which is also annular and connected between the scraping section 31 and the first connecting section 331. The inner ring edge of the compression section 34 is connected to the outer ring edge of the scraping section 31, and a portion of the outer ring edge of the compression section 34 is connected to the upper end of the first connecting section 331. The compression section 34 extends obliquely from the direction connecting the scraping section 31 to the direction connecting the first connecting section 331. When the dust removal component moves, the compression section 34 can press the dust and other particles suspended in the suction chamber 13 downward, making it easier for the dust to be discharged to the dust outlet, and can also compress the dust at the dust outlet, thus accommodating more dust. In this embodiment, the compression section 34 gradually approaches the scraping section 31 from top to bottom.

[0043] The scraping part 31, the operating part 32, the connecting part, and the compression part 34 are integrally formed.

[0044] like Figure 3-5 As shown, a limiting structure is provided on the main body 1. The limiting structure is adjacent to the handle 15. The limiting structure cooperates with the connecting part to restrict the vertical movement of the cleaning component in a straight line. The limiting structure restricts the connecting part in all directions, which is beneficial to the smooth movement of the cleaning component and improves the operating feel. The limiting structure includes a limiting post 41 and a limiting groove. The limiting post 41 is located inside the housing 11, and the limiting groove is opened on the housing 11 and communicates with the outer surface of the housing 11. Both the limiting post 41 and the limiting groove extend in a straight line.

[0045] The limiting post 41 extends in the vertical direction, and the first connecting part 331 is located between the limiting post 41 and the filter component 2. The first connecting part 331 cooperates with the limiting post 41 to ensure that the first connecting part 331 moves in a straight line. The main body 1 has a placement space 43, and a limiting post 41 is located within the placement space 43. The placement space 43 protrudes from the outer peripheral surface of the main body 1, that is, the placement space 43 is formed by a portion of the inner wall of the housing 11 protruding outward. A first connecting part 331 separates the placement space 43 from the dust collection chamber 13. The placement space 43 has an opening facing the dust collection chamber 13 to facilitate the connection between the first connecting part 331 and the compression part 34. The first connecting part 331 is located at the opening of the placement space 43. This opening extends vertically and its shape and size match the first connecting part 331. The first connecting part 331 covers the opening, and its inner side is flush with the inner peripheral surface of the main body 1, making the inner peripheral surface of the main body 1 smooth. Especially when the dust removal component is in the first state, the first connecting part 331 completely covers the opening of the placement space 43, preventing dust and other contaminants from entering the placement space 43 from the dust collection chamber 13. Figure 6 , 7 As shown. One end of the placement space 43 has a mounting hole 431. The limiting post 41 extends into the placement space 43 through the mounting hole 431 and is fixed to the main body 1. A mating part 3311 is provided on the first connecting part 331. The mating part 3311 is integrally formed with the first connecting part 331 and is sleeved on the limiting post 41. A connecting hole is provided on the mating part 3311, through which the mating part 3311 engages with the limiting post 41. The limiting post 41 has a uniform thickness and a smooth surface. In the radial direction of the limiting post 41, the cross-section of the placement space 43 is the same as the cross-section of the mating part 3311, so that the mating part 3311 is precisely engaged within the placement space 43 and can move up and down, facilitating the smooth movement of the first connecting part 331. An elastic element 44, which is a spring, is fitted onto the limiting post 41. The elastic element 44 is located between the mating part 3311 and the main body 1. The elastic element 44 provides an elastic force to the dust removal component to move upward, so that the dust removal component moves to its first state position when the operating part 32 is not subjected to external force. The elastic element 44 can be fixedly connected to the mating part 3311 and the main body 1, or its two ends can abut against the surfaces of the mating part 3311 and the main body 1 respectively.

[0046] The limiting groove has a first groove 421 formed on the outer surface of the main body 1 and extending in the vertical direction, and a second groove 422 disposed at the bottom of the main body 1. A third connecting part 333 is movably disposed in the first groove 421. When the scraping part 31 is located at the upper end of the filter component 2 (i.e., when the dust removal component is in the first state), the second connecting part 332 is housed in the second groove 422, making the bottom surface of the main body 1 flush. The first groove 421 is located on the outside of the placement space 43, and the lower end of the first groove 421 communicates with the second groove 422, facilitating the connection between the third connecting part 333 and the second connecting part 332. The first groove 421 also has a guide opening 423 on the outside of the main body 1. The guide opening 423 extends vertically and communicates with the second groove 422 at the lower end of the first groove 421. The width of the guide opening 423 is smaller than the groove width of the first groove 421. A guide portion 3331 (the guide portion 3331 and the third connecting portion 333 are integrally formed) protrudes from the outside of the third connecting portion 333. The shape of the guide portion 3331 matches the shape of the guide opening 423 of the first groove 421. The guide portion 3331 is movably disposed on the guide opening 423. When the third connecting portion 333 moves within the first groove 421, the guide portion 3331 moves within the guide opening 423. The operating part 32 is connected to the guide portion 3331.

[0047] The working principle of this embodiment is explained in detail below:

[0048] When the handheld vacuum cleaner is not in use or is vacuuming, the cleaning component is in the first position. The scraping part 31 is held at the upper end of the filter component 2 by the friction between the scraping part 31 and the filter component 2, as well as the elastic force of the elastic member 44. When too much dust adheres to the filter surface 21 of the filter component 2, affecting its filtration performance, or when a large amount of dust is suspended in the suction chamber 13, the operating part 32 is moved downwards, causing the cleaning component to move to the second position. This scrapes away the dust on the filter surface 21 or compresses the dust in the suction chamber 13. If the cleaning effect is unsatisfactory, this process can be repeated. After cleaning, the cleaning component is moved back to the first position, and the handheld vacuum cleaner can be used again. After vacuuming is finished, the cover 12 is opened, and the dust is poured out from the dust outlet.

[0049] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A handheld dust collector, comprising a main body (1), a filtering component (2) arranged in the main body (1) for separating dust from air, a dust collection cavity (13) formed between the outer side of the filtering component (2) and the inner side of the main body (1) for storing dust separated from air, and the main body (1) comprising a housing (11) and a cover (12), wherein the lower part of the housing (11) is provided with a dust outlet communicating with the dust collection cavity (13), and the cover (12) covers the dust outlet, characterized in that: the dust collector further comprises a dust cleaning component, the dust cleaning component comprising a scraping part (31), an operating part (32) and a connecting part, the scraping part (31) is arranged in the dust collection cavity (13) and located on the outer circumferential surface of the filtering component (2), the operating part (32) is arranged outside the main body (1) and connected with the scraping part (31) through the connecting part, the connecting part is in U shape, the scraping part (31), the connecting part and the operating part (32) are integrally formed, the connecting part comprises a first connecting part (331), a second connecting part (332) and a third connecting part (333), one end of the first connecting part (331) is connected with the scraping part (31), the other end of the first connecting part (331) extends downward and can pass through the bottom of the main body (1), one end of the second connecting part (332) is connected with the other end of the first connecting part (331), the other end of the second connecting part (332) is connected with one end of the third connecting part (333), the other end of the third connecting part (333) extends upward and is connected with the operating part (32), the third connecting part (333) is at least partially exposed outside the main body (1), the operating part (32) can drive the scraping part (31) to move in the up-down direction to clean the outer part of the filtering component (2), a port allowing the first connecting part (331) to pass through the main body (1) is formed on the cover (12), and a sealing element is arranged between the port and the first connecting part (331). The filtering component (2) has a filtering surface (21) located on the outer circumferential surface thereof, the scraping part (31) is located on the outer circumferential surface of the filtering surface (21), and the dust cleaning component has a first state and a second state, in the first state, the scraping part (31) is located at or above the upper end of the filtering component (2), and the first connecting part (331) is located in the main body (1), in the second state, the scraping part (31) is moved to the lower end of the filtering component (2), and the first connecting part (331) is at least partially moved out of the lower part of the main body (1).

2. The hand vacuum cleaner of claim 1, wherein: The main body (1) is provided with a limiting structure, and the limiting structure cooperates with the connecting part to limit the movement of the dust cleaning component in the up-down direction.

3. The hand vacuum cleaner of claim 1, wherein: ​ 4. The hand vacuum cleaner of claim 3, wherein: The limiting structure comprises a limiting column (41) extending in the up-down direction, and the first connecting part (331) is located between the limiting column (41) and the filtering component (2), and the first connecting part (331) cooperates with the limiting column (41).

5. The hand vacuum cleaner of claim 1, wherein: The main body (1) is provided with an elastic member (44) giving the dust cleaning component an elastic force for upward movement.

6. The hand vacuum cleaner of claim 5, wherein: The main body (1) is provided with a limiting column (41) extending in the up-down direction, and the first connecting part (331) is provided with a cooperating part (3311) sleeved on the limiting column (41), and the elastic member (44) is sleeved on the limiting column (41) and located between the cooperating part (3311) and the main body (1).

7. The hand vacuum cleaner of claim 4 or 6, characterized in that: The main body (1) is formed with a placing space (43) protruding from the outer circumferential surface of the main body (1), and the limiting column (41) is located in the placing space (43).

8. The hand vacuum cleaner of claim 7, wherein: The first connecting part (331) is located at the opening of the placing space (43) and covers the opening to smooth the inner circumferential surface of the main body (1).

9. The hand vacuum cleaner of claim 1, wherein: The dust cleaning component further comprises a compression part (34) connected between the scraping part (31) and the first connecting part (331), and the compression part (34) extends obliquely in the direction from connecting the scraping part (31) to connecting the first connecting part (331).

10. The hand vacuum cleaner of claim 1, wherein: The scraping part (31) is annular and made of elastic material.

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