A filter device and a vacuum cleaner

Abstract

The utility model discloses a filter device and dust collector, including base plate, including dust suction port and filter port, filter component with base plate detachable connection to the filter port is blocked, dust collection box with base plate sealed buckle forms dust collection space, wherein dust collection box at least one end can be separated from base plate to open dust collection space. A kind of filter device and dust collector of the application, convenient to dismount, it is convenient to filter component replacement and dust cleaning.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and more specifically, to a filtration device and a vacuum cleaner. Background Technology

[0002] In daily life and industrial production, vacuum cleaners, as highly efficient cleaning equipment, are widely used to remove dust, debris, and other impurities from surfaces such as floors, furniture, and fabrics. Their core working principle involves using a fan to generate negative pressure, drawing dust-laden air into the device. After passing through a filter to separate dust from clean air, the dust is collected in a dust collection unit, while the clean air is expelled from the device, thus achieving the cleaning purpose.

[0003] As a key component of vacuum cleaners, the filtration system directly affects cleaning efficiency, filtration effectiveness, and ease of use. Current vacuum cleaner filtration systems typically consist of a dust collection structure and a filter element: the dust collection structure temporarily stores inhaled dust, while the filter element intercepts dust to prevent it from entering the fan or exhaust system and causing secondary pollution. However, existing filtration systems suffer from the following problems in practical use: 1. Inconvenient dust collection structure, difficult to disassemble and clean: Some vacuum cleaners use a fixed connection or complex snap-fit ​​structure between the dust collection box and the main body, requiring users to use tools or perform multiple operations to remove the dust collection box. While some dust collection boxes are detachable, they are difficult to fully open after disassembly, resulting in the inability to thoroughly clean residual dust, hair, and other debris. Long-term use can easily lead to bacterial growth, and residual debris occupies dust collection space, reducing the cleaning capacity per cycle. Furthermore, the sealing performance of the dust collection box and the main body often conflicts with ease of disassembly and assembly. To ensure a sealing effect under negative pressure, the connection structure is designed to be complex, further increasing the difficulty of disassembly and assembly.

[0004] 2. Cumbersome filter component replacement and high maintenance costs: Filter components (such as filter screens and filter cotton) will reduce their filtration efficiency due to dust clogging after long-term use, requiring regular replacement or cleaning. Existing filter components are mostly fixed to the main body of the equipment using screws, glue, or nested connections. Users need to disassemble multiple parts when replacing them, making the operation complicated. In some designs, the filter component is integrated with the dust collection structure. Replacing the filter component requires simultaneously cleaning the dust inside the dust collection structure, which can easily cause dust to scatter and affect the user experience.

[0005] 3. Overall structural design affects user experience: The aforementioned inconvenience in disassembly and assembly makes it time-consuming and laborious for users to clean dust and replace filter components. This is especially true for frequent users such as the elderly and housewives, as frequent and complicated operations can reduce their willingness to use the product. Furthermore, if the filter components or dust collection structure are not installed correctly, it may lead to seal failure, reduced filtration efficiency, or even negative pressure leakage affecting the vacuum cleaner's suction performance.

[0006] Therefore, designing a filtration device that allows for easy assembly and disassembly of the dust collection box and filter components, thorough dust removal, and ensures sealing and filtration effectiveness has become an important direction for enhancing the competitiveness of vacuum cleaner products. Utility Model Content

[0007] The purpose of this utility model is to address the problems of inconvenient dust collection box disassembly and assembly, cumbersome filter component replacement, and difficult dust cleaning in existing vacuum cleaner filter devices. It provides a filter device and vacuum cleaner by optimizing the structural design of the filter device to achieve convenient disassembly and assembly of the dust collection box and filter components, thereby improving the efficiency of dust cleaning and component replacement.

[0008] To achieve the above objectives, in a first aspect, this application provides a filtration device, comprising: The substrate includes a dust inlet and a filter inlet; A filter assembly is detachably connected to the substrate and seals the filter port; The dust collection box is sealed and fastened to the substrate to form a dust collection space; The dust collection box is detachable from the substrate at at least one end to open the dust collection space, and the filter assembly can be disassembled and installed from the outside of the dust collection space.

[0009] Through the above technical solution, dust-laden air can enter the dust collection space through the suction port, where dust is trapped. The filter assembly further filters the air passing through the port, ensuring the cleanliness of the exhaust air. The design that at least one end of the dust collection box can be separated from the substrate breaks through the limitations of traditional dust collection boxes that are either fixed as a whole or complex to disassemble. Users can quickly open the dust collection space by separating this end, cleaning the internal dust without completely disassembling the dust collection box, greatly simplifying the dust cleaning process. At the same time, the detachable connection between the filter assembly and the substrate means that replacing or cleaning the filter assembly does not require disassembling too many parts, further improving ease of use.

[0010] In conjunction with the first aspect, a further technical solution is that one end of the dust collection box is rotatably connected to the substrate, and the other end is snap-fitted to the substrate.

[0011] Through the above technical solution, the dust collection box can rotate relative to the substrate around the rotating connection end. When the snap-fit ​​connection end separates, the dust collection box can be flipped open around the rotating end, realizing the complete opening of the dust collection space, which makes it easy for users to thoroughly clean the dust and debris remaining in the corners. The cooperation between the rotating connection and the snap-fit ​​connection not only ensures a stable seal between the dust collection box and the substrate when closed (the snap-fit ​​connection provides reliable locking force), but also realizes the operation of "one-click separation + flip opening" through the rotating structure. Compared with the traditional all-snap-fit ​​or screw-fixed structure, it reduces the disassembly and assembly steps and improves the operation efficiency.

[0012] In conjunction with the first aspect, a further technical solution is that one end of the dust collection box is detachably connected to the substrate, and when one end of the dust collection box is in a connected assembly state with the substrate, the dust collection box can rotate relative to the substrate.

[0013] Through the above technical solution, this design adds a detachable feature to the rotation function: for routine dust cleaning, there is no need to disassemble the rotating connection end; simply detach the other end to rotate and open the dust collection box. If deep cleaning of the dust collection box or the corresponding area of ​​the substrate is required, the rotating connection end can be completely disassembled, achieving complete separation of the dust collection box from the substrate. This dual feature of "rotatable + detachable" balances the convenience of daily use with the flexibility of deep maintenance, solving the problems of traditional rotating connection structures that cannot completely separate and are not thoroughly cleaned.

[0014] In conjunction with the first aspect, a further technical solution is that the other end of the dust collection box is snapped together with the substrate.

[0015] Through the above technical solution, the snap-fit ​​connection provides the dust collection box with a quick locking and unlocking function: when closed, the snap-fit ​​structure ensures that the dust collection box and the base plate fit tightly, guaranteeing the airtightness of the dust collection space and preventing air leakage under negative pressure environment from affecting the dust collection effect; when opened, the snap-fit ​​can be released simply by pressing or flipping, without the need for tools. This design combines airtightness and convenience, overcoming the shortcomings of traditional screw connections that are time-consuming to disassemble and assemble, or simple snap-fit ​​connections that are prone to loosening and air leakage. It can achieve complete separation of the dust collection box and the base plate, facilitating cleaning and replacement of parts.

[0016] In conjunction with the first aspect, a further technical solution is provided where a positioning protrusion is provided at one end of the substrate.

[0017] Through the above technical solution, the positioning protrusion plays a guiding and positioning role when assembling the filter device with the vacuum cleaner. Users can accurately install the filter device onto the vacuum cleaner without repeated alignment, avoiding poor sealing or structural wear caused by misalignment. At the same time, the positioning protrusion can cooperate and limit the corresponding structure of the dust collection box, reducing shaking of the dust collection box during use and improving the stability of the overall structure.

[0018] In conjunction with the first aspect, a further technical solution is provided whereby an elastic retaining plate is provided at the end of the dust collection box away from the positioning protrusion.

[0019] Through the above technical solution, the elastic plate itself has elastic deformation capability. When connected with the vacuum cleaner's buckle, it can achieve a tight fastening through deformation, ensuring connection strength. When separating, simply press the elastic plate to release the buckle, making operation effortless. The elastic plate is located at the end away from the positioning protrusion, forming a force balance between the two ends with the positioning protrusion, avoiding sealing gaps caused by uneven force on one side of the filter device, and further improving sealing reliability.

[0020] In conjunction with the first aspect, a further technical solution is that the elastic card plate and the dust collection box are designed as separate units.

[0021] Through the above technical solution, the split design allows the elastic plate to be made of a different material than the dust collection box (such as more elastic plastic), ensuring its elastic recovery ability after long-term use and avoiding the problem of easy breakage of the buckles due to the excessive rigidity of the dust collection box material. At the same time, if the elastic plate is worn or damaged, the user can replace the elastic plate separately without replacing the entire dust collection box, reducing maintenance costs and extending the service life of the dust collection box.

[0022] In conjunction with the first aspect, a further technical solution is provided, wherein the dust collection box is provided with a slot, and an elastic card plate is inserted into the slot for connection, and the elastic card plate is also provided with a limiting rib.

[0023] Through the above technical solution, the cooperation between the elastic plate and the slot enables rapid assembly of the elastic plate and the dust collection box, resulting in a firm connection and facilitating production assembly. The limiting ribs restrict the deformation range of the elastic plate, preventing excessive pressure from causing elastic failure, and also preventing the elastic plate from accidentally falling out of the slot, thus improving structural stability. This design combines the "ease of assembly," "reliability in use," and "damage resistance" of the elastic plate, solving the problems of easy breakage and low assembly accuracy of traditional one-piece molded elastic buckles.

[0024] In conjunction with the first aspect, a further technical solution is provided in which the substrate is provided with at least two spaced grooves, and the filter assembly is detachably connected to the substrate through the grooves.

[0025] The above technical solution uses at least two spaced grooves to provide multi-point positioning for the filter assembly, ensuring a stable seal at the filter inlet after assembly and preventing unfiltered air from escaping through gaps due to loosening of the filter assembly. The filter assembly achieves "insert-type assembly" and "pull-out-type disassembly" via the grooves, simplifying the operation. Users can complete replacement or cleaning within seconds, significantly improving maintenance efficiency compared to traditional screw-fixed or adhesive structures.

[0026] Secondly, this application provides a vacuum cleaner including a filtration device as described in the first aspect.

[0027] Through the above technical solution, the vacuum cleaner, after integrating this filter device, inherits its advantages of "easy-to-open and close dustbin and easy-to-disassemble filter components." Users can quickly clean dust and maintain the filter components during daily use, reducing auxiliary operation time during the cleaning process. At the same time, the filter device's excellent sealing and filtration effect ensure the vacuum cleaner's long-term stable suction power and clean exhaust capability, improving the overall user experience and product competitiveness.

[0028] In summary, this application has at least one of the following beneficial technical effects: 1. Significantly improved ease of operation: The dust collection box achieves quick operation of "separation and opening" through a combination structure of "rotation + buckle" or "detachable rotation + buckle", and dust cleaning does not require complete disassembly; the filter component is connected to the base plate through a groove, realizing "plug-in" replacement, which solves the pain point of cumbersome disassembly and assembly of traditional filter devices and greatly reduces the user's operating threshold.

[0029] 2. Balancing structural stability and sealing: Positioning protrusions ensure precise assembly of the filter device, while snap-fit ​​connections and elastic retaining plates guarantee a sealed dust collection space. The filter components are positioned using multi-point grooves to prevent loosening and air leakage. Compared to traditional designs, this approach improves convenience without sacrificing sealing performance and structural stability, ensuring the vacuum cleaner's normal suction power and filtration effect.

[0030] 3. Reduced maintenance costs and extended lifespan: The separate design of the flexible plate and dust collection box allows for the individual replacement of vulnerable parts; the convenient disassembly and assembly of the filter components reduces component wear during maintenance; the fully openable dust collection box design prevents bacterial growth and structural corrosion caused by dust residue, indirectly extending the service life of the filter device and even the vacuum cleaner.

[0031] 4. Strong design innovation and adaptability: By optimizing the connection structure (such as split elastic plate and detachable rotating connection), it breaks through the design limitation of traditional filter devices that "convenience and sealing cannot be achieved at the same time". Its structure can be adapted to different types of vacuum cleaners, with a wide range of applications, high practical value and market promotion prospects. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a three-dimensional structural diagram of the filtration device of this application; Figure 2 This is a cross-sectional schematic diagram of the filtration device of this application; Figure 3 This is a structural schematic diagram of the filtration device of this application from another angle; Figure 4 A schematic diagram of the filter device with the dust collection box in the open state; Figure 5A schematic cross-sectional view of the dust collection box of the filter device in the open state; Figure 6 This is a schematic diagram of the exploded structure of the filtration device; Figure 7 This is a schematic diagram of the structure of a vacuum cleaner.

[0034] Figure label: 1. Base plate; 11. Positioning protrusion; 12. Dust suction port; 13. Filter port; 14. Card; 141. Bayonet; 15. Groove; 16. Sealing ring; 2. Dust collection box; 3. Elastic retaining plate; 31. Limiting rib; 32. Raised rib; 4. Rotating shaft; 5. Filter assembly; 6. Dust collection space; 7. Spring; 8. Body; 81. Dust suction pipe; 82. Motor; 83. Retaining rib. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this application, it should be noted that, unless otherwise expressly 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0038] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0039] Example 1

[0040] Please see Figures 1-6This embodiment provides a filtration device, which consists of three main parts: a base plate 1, a filter assembly 5, and a dust collection box 2. The base plate 1 serves as both the frame of the filtration device and the interface for docking with the vacuum cleaner body 8. The base plate 1 includes a suction port 12 and a filter port 13. The filter assembly 5 is responsible for secondary filtration. The filter assembly 5 is detachably connected to the base plate 1 and seals the filter port 13.

[0041] Please see Figure 1 and Figure 2 The dust collection box 2 and the substrate 1 together enclose a dust collection space 6 for temporary dust storage. One end of the dust collection box 2 is pivotally connected to the substrate 1, and the other end is connected to the substrate 1 via a snap-fit ​​structure to open the dust collection space 6 for easy cleaning of the dust inside. The filter assembly 5 can be installed and removed from the outside of the dust collection space 6.

[0042] The rear end of the dust collection box 2 is pivotally connected to the substrate 1 via a horizontal pivot 4, while the front end is detachably engaged with the rib 32 of the substrate 1 via a clip 14. During daily use, the user simply presses the clip 141 with one hand, disengaging it from the rib 32. The dust collection box 2 then rotates approximately 90° around the pivot 4, completely opening the dust collection space 6, allowing the dust to be poured out directly. After cleaning, the dust collection box 2 is rotated back in the opposite direction, causing the clip 14 to spring back and engage with the rib 32 of the substrate 1 again, restoring the seal. This "rotation + clip" combination ensures a tight seal during negative pressure operation while also enabling convenient "one-click opening."

[0043] Please see Figure 2 and Figure 3 The filter assembly 5 adopts a drawer-type plug-in structure. Two parallel grooves 15 are provided on each of the left and right sides of the base plate 1, and corresponding molded inserts are formed on the frame of the filter assembly 5. During installation, the filter assembly 5 is pushed horizontally into the grooves 15 until it completely covers the filter opening 13. Disassembly is achieved by pulling it out in the reverse direction; the entire process requires no tools and can be completed with one hand. In a further embodiment, the connection between the filter assembly 5 and the grooves 15 is an elastic element, which can be elastically deformed and snapped into the grooves 15, making disassembly easier. The elastic element also simultaneously provides a sealing function. When the filter assembly 5 needs to be replaced or the dust in the dust collection space 6 needs to be emptied, the filter assembly 5 can simply be removed from the base plate 1 without opening the dust collection box 2, offering multiple operational possibilities and greater convenience.

[0044] The dust collection box 2 has an elastic card plate 3 at the end away from the positioning protrusion 11. The dust collection box 2 has a card slot, and the elastic card plate 3 is inserted into the card slot for connection. The elastic card plate 3 is also provided with a limit rib 31.

[0045] The front end of the base plate 1 has a protruding positioning protrusion 11, which cooperates with the positioning groove on the vacuum cleaner body 8 to achieve accurate insertion of the entire filter device in one go. At the same time, the positioning protrusion 11 and the elastic retaining plate 3 at the rear end of the dust collection box 2 form a two-point positioning to prevent the filter device from shaking after assembly. The card 14 at the rear end of the dust collection box 2 cooperates with the protruding rib 32 of the base plate 1 to form a locking force to ensure sealing under negative pressure.

[0046] In some embodiments, a spring 7 is provided between the elastic plate 3 and the dust collection box 2 to further assist the elastic plate 3 in resetting.

[0047] Please see Figures 4-6 The elastic plate 3 is a separate plastic part from the dust collection box 2. It is inserted into the groove at the front end of the dust collection box 2 by a dovetail rib and is reinforced with positioning ribs to prevent overpressure or detachment. When the elastic plate 3 is damaged due to long-term pressure fatigue, it can be replaced separately to reduce maintenance costs.

[0048] Pressing card 14 separates the rib 32 from card 14, allowing the dust collection box 2 to rotate relative to the base plate 1 around the pivot 4, thus cleaning the dust in the dust collection space 6. Alternatively, without opening the dust collection box 2, the filter assembly 5 can be disassembled from the outside, allowing the dust to be poured out from the filter port 13, and the filter assembly 5 can be cleaned at the same time, which is even simpler.

[0049] Example 2

[0050] Referring to the accompanying drawings of Embodiment 1, this embodiment has a similar overall structure to Embodiment 1, except that the rotating connection between the dust collection box 2 and the substrate 1 is designed as a "detachable rotating" structure. A pin is provided at the rear end of the dust collection box 2, and a corresponding slot is provided on the substrate 1. The pin can rotate within the slot to allow for daily opening and closing. When the user wishes to perform deep cleaning (such as cleaning the inside of the substrate 1 or replacing the sealing ring 16), the pin can be directly pulled out along the slot, and the dust collection box 2 and the substrate 1 can be completely separated. This design retains all the convenience of Embodiment 1 while further enhancing the flexibility of deep maintenance.

[0051] In another embodiment, the detachable rotating structure can be designed as follows: a rotating shaft 4 is provided on the substrate 1, and a C-shaped groove (not shown in the figure) is provided on the dust collection box 2. The rotating shaft 4 is engaged through the notch of the C-shaped groove to achieve a rotating connection between the substrate 1 and the dust collection box 2. When it is necessary to separate the substrate 1 and the dust collection box 2, the rotating shaft 4 can be disengaged from the notch of the C-shaped groove of the dust collection box 2. The structure is simple and the disassembly is more convenient and quick.

[0052] Example 3

[0053] Please see Figure 7This embodiment discloses a vacuum cleaner, in which a fan assembly is installed inside the body 8. The dust chamber opening of the body 8 is detachably installed with a filter device of embodiment one or embodiment two. The suction pipe 81 corresponds to the suction port, and the motor 82 corresponds to the filter port. Dust enters the dust collection space through the suction pipe 81 and the suction port, and the air is filtered by the filter assembly and carried away by the motor 82.

[0054] During assembly, the positioning protrusion 11 of the filter device is aligned with the positioning groove on the body 8 and pushed in at once. The elastic retaining plate 3 on the dust collection box 2 is then engaged with the retaining rib 83 of the body 8, thus completing the assembly of the entire machine. The body 8 can be further provided with locking holes at corresponding positions to match the elastic retaining plate 3 of the filter device, forming a double-point fixation to ensure no shaking or air leakage during negative pressure operation.

[0055] During use, when the dust bin is full or filter assembly 5 is clogged, the user does not need to use any tools: Press the release button on the dust collection box 2 on the outside of the main body 8 (or press the elastic plate 3 directly), the dust collection box 2 will flip over and the dust will be emptied immediately.

[0056] If you need to replace the filter component, simply remove the old component and insert the new one.

[0057] When using the solution in Embodiment 2, if deep cleaning is required, the pin of the dust collection box 2 can be removed to completely separate the dust collection box 2 from the substrate 1 for thorough water washing.

[0058] The entire maintenance process can be completed quickly, significantly reducing downtime and improving the daily operability and user experience of the vacuum cleaner.

[0059] The filtration device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A filter device, characterized in that include: The substrate includes a dust inlet and a filter inlet; A filter assembly is detachably connected to the substrate and seals the filter port; The dust collection box is sealed and fastened to the substrate to form a dust collection space; The dust collection box is detachable from the substrate at at least one end to open the dust collection space, and the filter assembly can be disassembled and installed from the outside of the dust collection space.

2. The filter device of claim 1, wherein, One end of the dust collection box is rotatably connected to the substrate, and the other end is snap-fitted to the substrate.

3. The filtration device according to claim 1, characterized in that, One end of the dust collection box is detachably connected to the substrate. When one end of the dust collection box is connected to the substrate, the dust collection box can rotate relative to the substrate.

4. The filtration device according to claim 3, characterized in that, The other end of the dust collection box is snapped together with the base plate.

5. The filtration device according to claim 1, characterized in that, The substrate has a positioning protrusion at one end.

6. The filter device of claim 5, wherein, The dust collection box is provided with a flexible retaining plate at the end away from the positioning protrusion.

7. The filtration device according to claim 6, characterized in that, The flexible card plate and the dust collection box are designed separately.

8. The filtration device according to claim 7, characterized in that, The dust collection box is provided with a slot, and an elastic card plate is inserted into the slot for connection. The elastic card plate is also provided with a limiting rib.

9. The filtration device according to claim 1, characterized in that, The substrate has at least two spaced grooves, and the filter assembly is detachably connected to the substrate through the grooves.

10. A vacuum cleaner, characterized in that, Includes the filtration device as described in any one of claims 1 to 9.

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