Dust cup and dust cleaner

By optimizing the dust cup's dust-blocking structure and adopting a combination design of a bracket and a dust-blocking plate, with the bracket part located within the clearance space and the air guide surface smoothly transitioning, the spiral air intake channel and elastic dust-blocking plate solve the problem of poor airflow in existing technologies and improve the vacuum cleaner's dust collection effect.

CN224936974UActive Publication Date: 2026-11-06BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202522405048.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-12
Publication Date
2026-11-06
Estimated Expiration
2035-11-12

AI Technical Summary

Technical Problem

The existing dust cup's dust-blocking structure is poorly designed, affecting the smoothness of airflow and resulting in poor dust collection performance.

Method used

A dust cup is designed, comprising a cup body, an air inlet channel, an air outlet channel, and a separation chamber. The dust-blocking assembly consists of a bracket and a dust-blocking plate. The bracket is located within a clearance space, and the dust-blocking plate can open and close the air inlet channel. The bracket and the air guide surface transition smoothly to avoid airflow disturbance. The air inlet channel is spiral-shaped to enhance the centrifugal separation effect. Fasteners fix the bracket, and the dust-blocking plate is elastic for easy operation.

Benefits of technology

It improves the smoothness of airflow, reduces airflow resistance, enhances dust separation, reduces the risk of dust baffle wobbling and abnormal noise, and improves the vacuum cleaner's suction efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224936974U_ABST
    Figure CN224936974U_ABST
Patent Text Reader

Abstract

This utility model relates to a dust cup and a vacuum cleaner. The dust cup includes a cup body and a dust-blocking assembly. The cup body has an air inlet channel, an air outlet channel, and a separation chamber. Both the air inlet channel and the air outlet channel are connected to the separation chamber. The cup body has a clearance space. The dust-blocking assembly includes a bracket and a dust-blocking plate. At least a portion of the bracket is disposed within the clearance space, and the dust-blocking plate is connected to the bracket. The dust-blocking plate can open and close the air inlet channel. The dust-blocking structure of the dust cup of this utility model is reasonably designed, causing less obstruction to the airflow in the air duct, which is conducive to improving the smoothness of airflow.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a dust cup and a vacuum cleaner. Background Technology

[0002] With the development of technology and the improvement of people's living standards, vacuum cleaners, such as mite removers, can quickly clean foreign objects from sheets, mattresses, and clothes, and are gradually gaining acceptance. When a vacuum cleaner is working, dust, mites, dander, and other foreign objects enter the dust cup through the suction port under negative pressure for collection. However, in some related technologies, an unreasonable dust-blocking structure design within the dust cup affects the smoothness of airflow and thus the vacuum cleaner's suction performance. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a dust cup with a reasonable dust-blocking structure design that minimizes obstruction to airflow in the duct and improves the smoothness of airflow.

[0005] An embodiment of this utility model also proposes a vacuum cleaner.

[0006] The dust cup of this utility model includes: a cup body, wherein the cup body is provided with an air inlet channel, an air outlet channel and a separation chamber, the air inlet channel and the air outlet channel are both connected to the separation chamber, and the cup body is provided with a clearance space; and a dust blocking assembly, wherein the dust blocking assembly includes a bracket and a dust blocking plate, at least a portion of the bracket is disposed in the clearance space, the dust blocking plate is connected to the bracket, and the dust blocking plate can open and close the air inlet channel.

[0007] According to the dust cup of the present invention, since the dust baffle is connected to the bracket, at least part of the bracket is located in the clearance space, thereby allowing the structure of the bracket to be cleared. When the air inlet channel is open, the bracket obstructs the airflow of the air inlet channel less, which is conducive to improving the smoothness of airflow.

[0008] In some embodiments, the bracket has an air guide surface that smoothly transitions to the wall of the air inlet channel. Because the air guide surface smoothly transitions to the wall of the air inlet channel, airflow disturbance is reduced when the airflow passes through the junction of the bracket and the wall of the air inlet channel, allowing the airflow to flow more smoothly through the bracket and reducing airflow resistance.

[0009] In some embodiments, the cup body has a mounting base, at least a portion of the air inlet channel surrounds the outer periphery of the mounting base, and the clearance space is located on the outer wall surface of the mounting base. Because at least a portion of the air inlet channel surrounds the outer periphery of the mounting base, the shape of a portion of the air inlet channel is generally spiral-shaped, thereby improving the dust separation effect under centrifugal force. The dust cup of this embodiment of the invention, by providing the clearance space on the outer wall surface of the mounting base, avoids the problem of airflow entering the air inlet channel directly impacting the support, and allows the airflow to flow along the inner wall of the separation chamber, which is beneficial for improving the airflow guiding effect.

[0010] In some embodiments, the bracket includes a main body and a fixing part, the fixing part being connected to the main body, the main body being disposed within the clearance space, and the dust cup further including a fastener, the fastener passing through the fixing part and the cup body. Because the fastener passes through the fixing part and the cup body, the problem of the bracket wobbling relative to the cup body can be avoided, which helps to improve the fixing effect between the bracket and the cup body.

[0011] In some embodiments, the main body has a cavity, and the first end of the dustproof sheet is installed in the cavity. This allows the cavity within the main body to accommodate the structure of the first end of the dustproof sheet, facilitating the assembly of the dustproof sheet with the main body.

[0012] In some embodiments, a limiting rib is provided in the cavity, and a limiting portion is provided at the first end of the dustproof sheet, with the limiting rib abutting against the limiting portion. Because the limiting rib abuts against the limiting portion, the installation position of the first end of the dustproof sheet can be constrained to prevent the dustproof sheet from shaking or falling out of the cavity, thus improving the fixing effect of the dustproof sheet.

[0013] In some embodiments, the dust baffle is elastic. When the air pressure in the air inlet channel is greater than a preset value, the dust baffle can elastically deform to open the air inlet channel. When the air pressure in the air inlet channel is less than or equal to the preset value, the dust baffle can return to its original position to close the air inlet channel. This makes the opening and closing of the dust baffle simple and cost-effective.

[0014] In some embodiments, the dust baffle includes a dust baffle body and a reinforcing plate. The dust baffle body is elastic and connected to the bracket, and the reinforcing plate is disposed within the dust baffle body. The reinforcing plate can support the dust baffle body to prevent abnormal noise from the dust baffle during operation.

[0015] In some embodiments, the dust baffle has a first end near the support and a second end away from the support, and the dust baffle extends toward the airflow direction within the air inlet channel in the direction from the first end to the second end. Because the dust baffle is arranged in this manner, it can guide the airflow passing through it, thereby allowing the airflow to flow along the inner wall of the separation chamber.

[0016] Another embodiment of the vacuum cleaner of the present invention includes the dust cup described in any one of the embodiments of the present invention.

[0017] According to the embodiments of the present invention, the vacuum cleaner has a dust baffle connected to the bracket, and at least a part of the bracket is located in the clearance space. This allows for clearance of the bracket structure. When the air inlet channel is open, the bracket has less obstruction to the airflow of the air inlet channel, which is beneficial to improving the smoothness of airflow. Attached Figure Description

[0018] Figure 1 This is a perspective view of the dust cup according to an embodiment of the present utility model.

[0019] Figure 2 This is a front view of the dust cup according to an embodiment of the present utility model.

[0020] Figure 3 yes Figure 2 Cross-sectional view of AA.

[0021] Figure 4 This is a cross-sectional view of the dust-blocking component of the dust cup according to an embodiment of the present invention.

[0022] Figure 5 This is a perspective view of the dust-blocking plate of the dust cup according to an embodiment of the present utility model.

[0023] Figure label: 1. Cup body; 11. Air inlet duct; 12. Air outlet duct; 13. Separation chamber; 14. Dust collection chamber; 15. Mounting base; 16. Air inlet; 17. Air outlet; 18. Clearance space; 2. Dustproof assembly; 21. Bracket; 211. Main body; 2111. Air guide surface; 2112. Chamber; 2113. Limiting rib; 212. Fixing part; 22. Dustproof sheet; 221. Dustproof body; 222. Reinforcing plate; 223. Limiting part; 2201. First end; 2202. Second end. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] The following is a reference appendix. Figures 1 to 5 This invention describes a dust cup and a vacuum cleaner according to embodiments of the present invention.

[0026] like Figures 1 to 3 As shown, the dust cup of this utility model embodiment includes: a cup body 1 and a dust-blocking assembly 2. The cup body 1 is provided with an air inlet channel 11, an air outlet channel 12 and a separation chamber 13. The air inlet channel 11 and the air outlet channel 12 are both connected to the separation chamber 13. The cup body 1 is provided with a clearance space 18. The dust-blocking assembly 2 includes a bracket 21 and a dust-blocking plate 22. At least a portion of the bracket 21 is disposed in the clearance space 18. The dust-blocking plate 22 is connected to the bracket 21. The dust-blocking plate 22 can open and close the air inlet channel 11.

[0027] According to the dust cup of the present invention, since the dust baffle 22 is connected to the bracket 21, at least a portion of the bracket 21 is disposed in the clearance space 18, thereby allowing the structure of the bracket 21 to be cleared, ensuring that the installation area of ​​the dust baffle assembly 2 and the cup body 1 has a sufficient cross-sectional area for airflow. When the air inlet channel 11 is in the open state, the bracket 21 obstructs the airflow of the air inlet channel 11 less, which is conducive to improving the smoothness of airflow.

[0028] Understandably, when the vacuum cleaner is working, the dust baffle 22 can open under air pressure, allowing airflow carrying dust to enter the separation chamber 13 through the air inlet duct 11. When the vacuum cleaner stops, the baffle can return to its original position to close the air inlet duct 11, thereby preventing dust mites and other debris from falling from the air inlet 16 of the air inlet duct 11.

[0029] like Figure 3 As shown, the outer wall of the cup body 1 has an air inlet 16 and an air outlet 17. The air inlet 16 is connected to the air inlet channel 11, and the air outlet 17 is connected to the air outlet channel 12.

[0030] For example, a portion of the support 21 is located within the clearance space 18. Or, for example, all of the supports 21 are located within the clearance space 18.

[0031] Optionally, such as Figure 3 and Figure 4 As shown, the bracket 21 has an air guide surface 2111, which smoothly transitions to the wall of the air inlet channel 11. Because the air guide surface 2111 smoothly transitions to the wall of the air inlet channel 11, when the airflow passes through the junction of the bracket 21 and the wall of the air inlet channel 11, airflow disturbance can be reduced, allowing the airflow to flow more smoothly through the bracket 21, thereby reducing the flow resistance of the airflow.

[0032] For example, the air guide surface 2111 is generally planar and coincides with the outline of the wall of the air inlet channel 11, which can further reduce the airflow resistance.

[0033] Optionally, such as Figure 3 As shown, the cup body 1 has a mounting base 15, and at least a portion of the air inlet channel 11 surrounds the outer periphery of the mounting base 15. A clearance space 18 is provided on the outer wall surface of the mounting base 15. Because at least a portion of the air inlet channel 11 surrounds the outer periphery of the mounting base 15, the shape of a portion of the air inlet channel 11 is generally spiral-shaped, thereby improving the dust separation effect under the action of centrifugal force. In this embodiment of the invention, the dust cup has the clearance space 18 located on the outer wall surface of the mounting base 15, which avoids the problem of airflow entering the air inlet channel 11 directly impacting the support 21, and allows the airflow to flow along the inner wall of the separation chamber 13, which is beneficial for improving the airflow guiding effect.

[0034] like Figure 4 and Figure 5 As shown, the bracket 21 includes a main body 211 and a fixing part 212, which is connected to the main body 211. The main body 211 is located within the clearance space 18. The dust cup also includes fasteners that pass through the fixing part 212 and the cup body 1. Because the fasteners pass through the fixing part 212 and the cup body 1, the problem of the bracket 21 wobbling relative to the cup body 1 can be avoided, which helps to improve the fixing effect between the bracket 21 and the cup body 1.

[0035] like Figure 3 As shown, the fixing part 212 is provided on the lower side of the main body part 211, and the fixing part 212 is in contact with the lower wall surface of the air inlet channel 11, thereby reducing the resistance of the airflow when passing through the fixing part 212.

[0036] For example, such as Figure 3 As shown, the main body 211 is engaged in the clearance space 18 along the vertical direction of the cup body 1, which makes it easy to assemble the bracket 21 onto the cup body 1, and the assembled bracket 21 is more stable.

[0037] Optionally, Figure 4 As shown, the main body 211 has a chamber 2112, and the first end 2201 of the dust baffle 22 is installed in the chamber 2112. Thus, the chamber 2112 in the main body 211 can accommodate the structure of the first end 2201 of the dust baffle 22, so as to facilitate the assembly of the dust baffle 22 with the main body 211.

[0038] like Figure 4 As shown, a limiting rib 2113 is provided inside the chamber 2112, and the first end 2201 of the dustproof sheet 22 has a limiting part 223, with the limiting rib 2113 abutting against the limiting part 223. Since the limiting rib 2113 abuts against the limiting part 223, the installation position of the first end 2201 of the dustproof sheet 22 can be constrained to prevent the dustproof sheet 22 from shaking or falling out of the chamber 2112, which helps to improve the fixing effect of the dustproof sheet 22.

[0039] Optionally, the dust baffle 22 is elastic. When the air pressure in the air inlet channel 11 is greater than a preset value, the dust baffle 22 can elastically deform to open the air inlet channel 11. When the air pressure in the air inlet channel 11 is less than or equal to the preset value, the dust baffle 22 can return to its original position to close the air inlet channel 11. This makes the opening and closing of the dust baffle 22 simple and cost-effective.

[0040] like Figure 4 and Figure 5 As shown, the dust baffle 22 includes a dust baffle body 221 and a reinforcing plate 222. The dust baffle body 221 is elastic and connected to the bracket 21, while the reinforcing plate 222 is disposed within the dust baffle body 221. It is understood that the structural strength of the reinforcing plate 222 is greater than that of the dust baffle body 221. The reinforcing plate 222 supports the dust baffle body 221 to prevent abnormal noise from occurring during operation.

[0041] For example, the dustproof body 221 is made of soft rubber, and the reinforcing plate 222 is made of ABS board (acrylonitrile / butadiene / styrene copolymer board).

[0042] Optionally, Figure 4 and Figure 5 As shown, the dust baffle 22 has a first end 2201 near the support 21 and a second end 2202 away from the support 21. From the first end 2201 to the second end 2202, the dust baffle 22 extends in the direction of airflow within the air inlet channel 11. Because the dust baffle 22 is arranged in this manner, it can guide the airflow passing through it, allowing the airflow to flow along the inner wall of the separation chamber 13.

[0043] It is understandable that when the dust baffle 22 closes the air inlet channel 11, the second end 2202 abuts against the wall of the air inlet channel 11, and when the dust baffle 22 opens the air inlet channel 11, the second end 2202 is separated from the wall of the air inlet channel 11.

[0044] like Figure 1 As shown, a dust collection chamber 14 is provided inside the cup body 1. The upper port of the separation chamber 13 is connected to the upper port of the dust collection chamber 14 so as to guide the dust in the separation chamber 13 to the dust collection chamber 14, thereby separating and collecting the dust.

[0045] Another embodiment of the vacuum cleaner of the present invention includes the dust cup of the present invention.

[0046] According to the embodiments of the present invention, since the dust baffle 22 is connected to the bracket 21, at least a portion of the bracket 21 is disposed within the clearance space 18, thereby allowing the structure of the bracket 21 to be cleared. When the air inlet channel 11 is in the open state, the bracket 21 obstructs the airflow of the air inlet channel 11 less, which is beneficial to improving the smoothness of airflow.

[0047] For example, a vacuum cleaner can be a mite remover.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A dust cup, characterized in that, include: The cup body (1) is provided with an air inlet channel (11), an air outlet channel (12) and a separation chamber (13). The air inlet channel (11) and the air outlet channel (12) are both connected to the separation chamber (13). The cup body (1) is provided with a clearance space (18). The dust-blocking assembly (2) includes a bracket (21) and a dust-blocking plate (22). At least a portion of the bracket (21) is disposed within the clearance space (18). The dust-blocking plate (22) is connected to the bracket (21) and can open and close the air inlet channel (11).

2. The dust cup according to claim 1, characterized in that, The bracket (21) has an air guide surface (2111) that smoothly transitions to the wall of the air inlet channel (11).

3. The dust cup according to claim 1, characterized in that, The cup body (1) has a mounting base (15), at least a portion of the air inlet channel (11) surrounds the outer periphery of the mounting base (15), and the clearance space (18) is provided on the outer wall surface of the mounting base (15).

4. The dust cup according to claim 1, characterized in that, The bracket (21) includes a main body (211) and a fixing part (212). The fixing part (212) is connected to the main body (211). The main body (211) is located in the clearance space (18). The dust cup also includes a fastener, which passes through the fixing part (212) and the cup body (1).

5. The dust cup according to claim 4, characterized in that, The main body (211) has a chamber (2112) inside, and the first end (2201) of the dustproof plate (22) is installed in the chamber (2112).

6. The dust cup according to claim 5, characterized in that, The chamber (2112) is provided with a limiting rib (2113), and the first end (2201) of the dustproof plate (22) has a limiting part (223), and the limiting rib (2113) abuts against the limiting part (223).

7. The dust cup according to claim 1, characterized in that, The dust baffle (22) is elastic. When the wind pressure in the air inlet channel (11) is greater than a preset value, the dust baffle (22) can be elastically deformed to open the air inlet channel (11). When the wind pressure in the air inlet channel (11) is less than or equal to the preset value, the dust baffle (22) can be reset to close the air inlet channel (11).

8. The dust cup according to claim 1, characterized in that, The dustproof sheet (22) includes a dustproof body (221) and a reinforcing plate (222). The dustproof body (221) is elastic and connected to the bracket (21). The reinforcing plate (222) is disposed inside the dustproof body (221).

9. The dust cup according to claim 1, characterized in that, The dust baffle (22) has a first end (2201) near the bracket (21) and a second end (2202) away from the bracket (21), and the dust baffle (22) extends toward the airflow direction in the air inlet channel (11) in the direction from the first end (2201) to the second end (2202).

10. A vacuum cleaner, characterized in that, The dust cup includes any one of claims 1-9.