A filter system structure
By designing a detachable HEPA filter and dust scraper mechanism in the vacuum cleaner, the problem of incomplete cleaning of the dust cup and filter cartridge is solved, achieving convenient disassembly and assembly and efficient cleaning effect, thus improving the overall cleaning efficiency and hygiene of the vacuum cleaner.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
Smart Images

Figure CN224483878U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vacuum cleaner filtration systems, and in particular to a filtration system structure. Background Technology
[0002] After using the vacuum cleaner, dust is collected in the dust cup. Meanwhile, due to the filter cartridge's filtration of the airflow, dust particles adhere to its surface. Therefore, to achieve thorough cleaning of the vacuum cleaner after use, it is necessary to empty the dust cup and clean the filter cartridge surface.
[0003] In the prior art, the cleaning of the dust cup inside the vacuum cleaner has the following problems: (1) The cleaning of the dust cup and the filter cartridge in the vacuum cleaner are independent of each other, resulting in low cleaning efficiency of the vacuum cleaner; (2) At present, the cleaning of the dust cup of the vacuum cleaner faces the problem of dirty hands, which is not conducive to hygiene; (3) The current cleaning method is not thorough enough, especially hair is not easy to clean, and a lot of dust is adsorbed on the inner wall of the dust cup; (4) The current HEPA filter is relatively troublesome to disassemble and assemble, and cannot be quickly disassembled and assembled, resulting in inconvenient maintenance. Utility Model Content
[0004] The present invention aims to overcome the shortcomings of the existing technology in which the HEPA filter is difficult to disassemble and assemble, and provides a filtration system structure that facilitates quick disassembly and assembly of the HEPA filter.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A filtration system structure includes a body and a HEPA filter. A dust cup is detachably connected to one end of the body, and a vacuum motor is detachably connected to the other end of the body. A filter cartridge is detachably connected to the body and located inside the dust cup. A dust scraping mechanism is movably connected inside the dust cup to scrape dust from the inner wall of the dust cup and the outer wall of the filter cartridge. The side wall of the filter cartridge has an insertion port that matches the HEPA filter and several evenly distributed filter holes. The HEPA filter is inserted into the filter cartridge through the insertion port and is detachably connected to the filter cartridge. The interior of the body is connected to the interior of the dust cup after passing through the HEPA filter and the filter holes.
[0007] One end of the machine body is detachably connected to a dust cup, and the other end of the machine body is detachably connected to a vacuum motor. A filter cartridge is detachably connected to the machine body and is located inside the dust cup. A dust scraping mechanism is movably connected inside the dust cup to scrape dust from the inner side wall of the dust cup and the outer side wall of the filter cartridge. The side wall of the filter cartridge is provided with an insertion port that matches the HEPA filter and several evenly distributed filter holes. The HEPA filter is inserted into the filter cartridge through the insertion port and is detachably connected to the filter cartridge. The interior of the machine body is connected to the interior of the dust cup after passing through the HEPA filter and the filter holes. The detachable connection between the dust cup and the main body is existing technology and will not be described in detail here. The HEPA filter can be detachably connected to the filter cartridge by snap-fitting the connector, but it is not limited to this. Taking the snap-fit connection as an example, when the user maintains the HEPA filter, first remove the dust cup from the main body; then, by snapping the snap-fit on the HEPA filter, the HEPA filter can be removed from the connector. Conversely, when the HEPA filter needs to be installed, simply insert the HEPA filter directly into the filter cartridge through the connector. The HEPA filter is then secured to the connector by snap-fitting, achieving the purpose of quick installation and removal of the HEPA filter and facilitating one-click removal.
[0008] Preferably, one side of the HEPA filter is located inside the filter cartridge, and the corresponding other side of the HEPA filter is detachably and sealed to the inlet and connected to the outer wall of the filter cartridge. Since the HEPA filter and the filter cartridge form an assembly installed inside the dust cup, this structural design facilitates both increasing the storage space inside the dust cup and improving the dust scraping operation of the dust scraping mechanism.
[0009] Preferably, the dust scraping mechanism includes a dust scraping ring, with a scraper strip one fixed on the outer circumference of the dust scraping ring, which contacts the inner wall of the dust cup. A brush strip and a scraper strip two, both in contact with the outer wall of the filter cartridge, are fixed on the inner circumference of the dust scraping ring. One side of the dust scraping ring is close to the vacuum motor, and the corresponding other side of the dust scraping ring is away from the vacuum motor. The brush strip is located on the side of the dust scraping ring away from the vacuum motor, and the scraper strip two is located on the side of the dust scraping ring close to the vacuum motor. A pushing member is provided on the machine body. The pushing member is slidably connected to the machine body along the axial direction. The pushing member is fixedly connected to the side of the dust scraping ring close to the vacuum motor. The dust scraping ring is slidably connected to the dust cup along the axial direction under the drive of the pushing member. The pusher drives the scraper ring to slide axially to scrape dust. Scraper blade 1 scrapes the inner surface of the dust cup. At the same time, since the filter cartridge surface has multiple filter holes, the brush first cleans the dust inside the filter holes to prevent clogging. Then, scraper blade 2 removes the dust from the surface of the filter cartridge. This allows the dust cup and filter cartridge to be cleaned simultaneously, improving the cleaning efficiency of the vacuum cleaner and eliminating the problem of dirty hands, which is hygienic. The use of scraper blade 1, scraper blade 2, and brush blade makes the cleaning more thorough. Scraper blade 1 and scraper blade 2 can be made of soft rubber or other materials, and the brush blade can be a soft brush or other type of brush to clean the filter holes.
[0010] Preferably, the machine body includes a support tube detachably connected to the machine body. The vacuum motor is located outside one end of the support tube and corresponds to the inside of the support tube. The other end of the support tube is fixedly connected to one end of the filter cartridge, forming a limiting step surface that matches the scraper ring. The other end of the filter cartridge is closed. The inside of the support tube is connected to the inside of the HEPA filter. A sliding cavity matching the pushing component is formed between the outer wall of the support tube and the inner wall of the machine body. The pushing component slides axially up and down with the sliding cavity. Before cleaning, the limiting step surface facilitates the limiting function of the scraper ring.
[0011] Preferably, the pushing component includes a slider that matches the sliding cavity. The slider and the sliding cavity are slidably connected axially. Both ends of the slider are provided with push rods. One end of the push rod is fixedly connected to the slider, and the other end of the push rod passes through the end of the machine body and is located inside the dust cup and fixedly connected to the side of the scraper ring near the vacuum motor. A push button is fixed on the slider. A rectangular hole is provided on the outer wall of the machine body to facilitate the synchronous sliding of the push button and the slider. The rectangular hole is connected to the inside of the sliding cavity. When it is necessary to clean the dust in the dust cup, the operator only needs to push the push button up. The slider slides up along the sliding cavity. At the same time, the push rod synchronously drives the scraper ring to slide upwards synchronously inside the dust cup. During the sliding process, the scraper ring pushes the dust on the filter cartridge surface, the inside of the dust cup, and the inner side wall of the dust cup upwards and out of the dust cup through the brush strips on its inner circumference surface, the scraper strip two, and the scraper strip one on its outer circumference surface. The structure is simple and easy to operate.
[0012] Preferably, one end of the push button is located inside the sliding cavity and fixedly connected to the slider, while the other end of the push button passes through the rectangular hole and is suspended outside the sliding cavity. This allows the operator to easily push the push button from the outside to perform the cleaning action of the dust scraper ring inside the dust cup, making operation convenient and preventing hands from getting dirty.
[0013] The beneficial effects of this utility model are:
[0014] 1. To facilitate quick assembly and disassembly of HEPA filters, enabling one-click removal;
[0015] 2. The pusher drives the scraper ring to slide axially to scrape dust. Scraper blade one scrapes the inner surface of the dust cup, while the brush first cleans the inside of the filter holes, and then scraper blade two removes dust from the surface of the filter cartridge. This allows the dust cup and filter cartridge to be cleaned simultaneously, improving the cleaning efficiency of the vacuum cleaner and eliminating the problem of dirty hands, which is hygienic. The use of scraper blade one, scraper blade two, and brush blade makes the cleaning more thorough.
[0016] 3. The operator can easily clean the dust cup's internal scraping ring by pushing the button from the outside, making it convenient and preventing hands from getting dirty. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of this utility model after the dust cup has been removed;
[0019] Figure 3 This is the front view of this utility model;
[0020] Figure 4 yes Figure 3 Sectional view of AA;
[0021] Figure 5 yes Figure 4 Enlarged view of the structure at point B;
[0022] Figure 6 This is a schematic diagram of the ash scraping mechanism.
[0023] In the diagram: 1. Body, 2. HEPA filter, 3. Dust cup, 4. Vacuum motor, 5. Filter cartridge, 6. Dust scraping mechanism, 7. Inlet, 8. Filter hole, 9. Dust scraping ring, 10. Scraper blade one, 11. Brush blade, 12. Scraper blade two, 13. Pushing component, 14. Support tube, 15. Limiting step surface, 16. Sliding cavity, 17. Slider, 18. Push rod, 19. Rectangular hole, 20. Push button. Detailed Implementation
[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.
[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 In the embodiments described, a filtration system structure includes a body 1 and a HEPA filter 2. A dust cup 3 is detachably connected to one end of the body 1, and a vacuum motor 4 is detachably connected to the other end of the body 1. A filter cartridge 5 is detachably connected to the body 1 and is located inside the dust cup 3. A dust scraping mechanism 6 is movably connected inside the dust cup 3 to scrape dust from the inner side wall of the dust cup 3 and the outer side wall of the filter cartridge 5. The side wall of the filter cartridge 5 is provided with an insertion port 7 that matches the HEPA filter 2 and several evenly distributed filter holes 8. The HEPA filter 2 is inserted into the filter cartridge 5 through the insertion port 7 and is detachably connected to the filter cartridge 5. The interior of the body 1 is connected to the interior of the dust cup 3 after passing through the HEPA filter 2 and the filter holes 8.
[0029] like Figure 2 and Figure 4As shown, one side of the HEPA filter 2 is located inside the filter cartridge 5, and the corresponding other side of the HEPA filter 2 is detachably and sealed to the inlet 7 and connected to the outer wall of the filter cartridge 5.
[0030] like Figure 2 , Figure 5 and Figure 6 As shown, the dust scraping mechanism 6 includes a dust scraping ring 9. A scraper 10 is fixed on the outer circumference of the dust scraping ring 9, which is in contact with the inner wall of the dust cup 3. A brush 11 and a scraper 2 12 are fixed on the inner circumference of the dust scraping ring 9, which are in contact with the outer wall of the filter cartridge 5. One side of the dust scraping ring 9 is close to the vacuum motor 4, and the other side of the dust scraping ring 9 is away from the vacuum motor 4. The brush 11 is located on the side of the dust scraping ring 9 away from the vacuum motor 4, and the scraper 2 12 is located on the side of the dust scraping ring 9 close to the vacuum motor 4. A pusher 13 is provided on the body 1. The pusher 13 is slidably connected to the body 1 along the axial direction. The pusher 13 is fixedly connected to the side of the dust scraping ring 9 close to the vacuum motor 4. The dust scraping ring 9 is slidably connected to the dust cup 3 along the axial direction under the drive of the pusher 13.
[0031] like Figure 4 and Figure 5 As shown, the body 1 is provided with a support tube 14, which is detachably connected to the body 1. The vacuum motor 4 is located outside one end of the support tube 14 and corresponds to the inside of the support tube 14. The other end of the support tube 14 is fixedly connected to one end of the filter cartridge 5 and forms a limiting step surface 15 that matches the dust scraper ring 9. The other end of the filter cartridge 5 is closed. The inside of the support tube 14 is connected to the inside of the HEPA filter 2. A sliding cavity 16 that matches the pusher 13 is formed between the outer wall of the support tube 14 and the inner wall of the body 1. The pusher 13 slides up and down with the sliding cavity 16 along the axial direction.
[0032] like Figure 2 , Figure 4 and Figure 6 As shown, the pusher 13 includes a slider 17 that matches the slide cavity 16. The slider 17 and the slide cavity 16 are slidably connected along the axial direction. Both ends of the slider 17 are provided with push rods 18. One end of the push rod 18 is fixedly connected to the slider 17, and the other end of the push rod 18 passes through the end of the body 1 and is located inside the dust cup 3 and fixedly connected to the side of the scraper ring 9 near the vacuum motor 4. A push button 20 is fixed on the slider 17. A rectangular hole 19 is provided on the outer wall of the body 1 to facilitate the synchronous sliding of the push button 20 and the slider 17. The rectangular hole 19 is connected to the inside of the slide cavity 16. One end of the push button 20 is located inside the slide cavity 16 and is fixedly connected to the slider 17. The other end of the push button 20 passes through the rectangular hole 19 and is suspended outside the slide cavity 16.
[0033] In Example 1, the machine body 1 has a built-in vacuum motor 4, which is used to create negative pressure. The dust and debris sucked in by the negative pressure are filtered through the HEPA filter 2 and then enter the filter cartridge 5. After being filtered through the filter cartridge 5, they are collected inside the dust cup 3. The machine body 1 is existing technology, so its structure will not be described in detail here. When it is necessary to clean the dust and debris in the dust cup 3, the user only needs to push the push button 20 up, and the slider 17 slides up along the sliding cavity 16. At the same time, the push rod 18 drives the scraper ring 9 to slide upward in the dust cup 3. During the sliding process, the scraper ring 9 pushes the dust and debris on the surface of the filter cartridge 5, the inside of the dust cup 3 and the inner side wall of the dust cup 3 upward and out of the dust cup 3 through the brush strip 11 on its inner circumference surface, the scraper strip 2 12 and the scraper strip 10 on its outer circumference surface, respectively. This cleans thoroughly and facilitates the cleaning of dust and debris. In the above process, the brush strip 11 first cleans the dust inside the filter holes 8 to prevent clogging, and then the scraper strip 2 12 removes the dust from the surface of the filter cartridge 5. This allows the cleaning of the dust cup 3 and the filter cartridge 5 in the vacuum cleaner to be carried out simultaneously, which helps to improve the cleaning efficiency of the vacuum cleaner and avoids the problem of dirty hands, which is hygienic. The use of scraper strip 1 10, scraper strip 2 12 and brush strip 11 makes the cleaning more thorough. Scraper strip 1 10 and scraper strip 2 12 can be made of soft rubber or other materials, and brush strip 11 can be a bristle brush or other types of brush to clean the filter holes 8.
[0034] In Example 2, the detachable connection between the dust cup 3 and the body 1 is existing technology and will not be described in detail here. The HEPA filter 2 can be detachably connected to the filter cartridge 5 by snapping it with the connector 7, but is not limited to this. Taking the snap-fit connection as an example, when the user maintains the HEPA filter 2, he first removes the dust cup 3 from the body 1; then he can take the HEPA filter 2 out from the connector 7 by snapping the snap on the HEPA filter 2. Conversely, when the HEPA filter 2 needs to be installed, the HEPA filter 2 can be directly inserted into the filter cartridge 5 through the connector 7. The HEPA filter 2 is fastened and fixed to the connector 7 by the snap, which facilitates the quick installation and removal of the HEPA filter 2 and makes it easy to remove with one click.
[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A filtration system structure, comprising a body (1) and a HEPA filter (2), wherein a dust cup (3) is detachably connected to one end of the body (1), a vacuum motor (4) is detachably connected to the other end of the body (1), a filter cartridge (5) is detachably connected to the body (1), the filter cartridge (5) is located inside the dust cup (3), and a dust scraping mechanism (6) is movably connected inside the dust cup (3) to scrape dust from the inner wall of the dust cup (3) and the outer wall of the filter cartridge (5), characterized in that, The side wall of the filter cartridge (5) is provided with an inlet (7) that matches the HEPA filter (2) and several evenly distributed filter holes (8). The HEPA filter (2) is inserted into the filter cartridge (5) through the inlet (7) and is detachably connected to the filter cartridge (5). The interior of the body (1) is connected to the interior of the dust cup (3) after passing through the HEPA filter (2) and the filter holes (8).
2. The filtration system structure according to claim 1, characterized in that, One side of the HEPA filter (2) is located inside the filter cartridge (5), and the other side of the HEPA filter (2) is detachably and sealed to the inlet (7) and connected to the outer wall of the filter cartridge (5).
3. A filtration system structure according to claim 1 or 2, characterized in that, The dust scraping mechanism (6) includes a dust scraping ring (9). A scraper strip (10) is fixed on the outer circumference of the dust scraping ring (9) and contacts the inner wall of the dust cup (3). A brush strip (11) and a scraper strip (12) are fixed on the inner circumference of the dust scraping ring (9) and both contacts the outer wall of the filter cartridge (5). One side of the dust scraping ring (9) is close to the vacuum motor (4), and the other side of the dust scraping ring (9) is away from the vacuum motor (4). The brush strip (11) is located at... The scraper ring (9) is located away from the vacuum motor (4). The scraper blade (12) is located on the side of the scraper ring (9) close to the vacuum motor (4). The body (1) is provided with a pusher (13). The pusher (13) is slidably connected to the body (1) along the axial direction. The pusher (13) is fixedly connected to the side of the scraper ring (9) close to the vacuum motor (4). The scraper ring (9) is slidably connected to the dust cup (3) along the axial direction under the drive of the pusher (13).
4. The filtration system structure according to claim 3, characterized in that, The body (1) is provided with a support tube (14), which is detachably connected to the body (1). The vacuum motor (4) is located outside one end of the support tube (14) and corresponds to the inside of the support tube (14). The other end of the support tube (14) is fixedly connected to one end of the filter cartridge (5) and forms a limiting step surface (15) that matches the dust scraper ring (9). The other end of the filter cartridge (5) is closed. The inside of the support tube (14) is connected to the inside of the HEPA filter (2). The outer wall of the support tube (14) and the inner wall of the body (1) form a sliding cavity (16) that matches the pusher (13). The pusher (13) slides up and down with the sliding cavity (16) along the axial direction.
5. The filtration system structure according to claim 4, characterized in that, The pusher (13) includes a slider (17) that matches the slide cavity (16). The slider (17) and the slide cavity (16) are slidably connected along the axis. Both ends of the slider (17) are provided with push rods (18). One end of the push rod (18) is fixedly connected to the slider (17). The other end of the push rod (18) passes through the end of the body (1) and is located in the dust cup (3) and fixedly connected to the side of the scraper ring (9) near the vacuum motor (4). A push button (20) is fixed on the slider (17). A rectangular hole (19) is provided on the outer wall of the body (1) to facilitate the synchronous sliding of the push button (20) and the slider (17). The rectangular hole (19) is connected to the inside of the slide cavity (16).
6. The filtration system structure according to claim 5, characterized in that, One end of the push button (20) is located inside the slide cavity (16) and is fixedly connected to the slider (17). The other end of the push button (20) passes through the rectangular hole (19) and is suspended outside the slide cavity (16).