Dust collector with dust blocking piece

Abstract

The utility model provides a dust collector with a dust blocking piece, which comprises a dust cup, a shell connected with the dust cup, a vacuum motor arranged in the shell and used for generating vacuum in the dust cup, a filter cover arranged in the dust cup and used for separating dust from air, and the dust blocking piece positioned on the outer side of the filter cover and in the dust cup, the dust blocking piece comprises a dust blocking piece opening allowing the filter cover to pass through and a dust blocking ring surrounding the dust blocking piece opening and blocking dust from rising. The probability that the mesh enclosure is blocked is reduced, the dust removal performance is improved, the work cycle of the dust cup is prolonged, and meanwhile the dust removal efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment, specifically to a vacuum cleaner with a dust-blocking component. Background Technology

[0002] Existing vacuum cleaners typically include a dust cup and a housing connected to the dust cup. The dust cup often employs a cyclone separation method, the core principle of which is to use the centrifugal force generated by rotating airflow to separate dust from the airflow. Experiments have shown that dust separated by the cyclone is easily re-entrained by the airflow, creating a dust-raising phenomenon. This raised dust easily clogs the mesh of the dust filter, increasing the probability of clogging, affecting dust removal performance, reducing the working cycle of the dust cup, and decreasing dust removal efficiency. Similar technology can be found in the applicant's utility model patent CN209018606U.

[0003] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this utility model is to provide a vacuum cleaner with a dust-blocking component that can effectively solve the above-mentioned technical problems, reduce the probability of the mesh cover being blocked, improve dust removal performance, extend the working cycle of the dust cup, and improve dust removal efficiency.

[0005] To achieve the purpose of this utility model, the present utility model provides the following technical solution: a vacuum cleaner with a dust-blocking component, comprising a dust cup, a housing connected to the dust cup, a vacuum motor disposed within the housing and creating a vacuum within the dust cup, a filter cover disposed within the dust cup and separating dust and gas, and a dust-blocking component located outside the filter cover and within the dust cup, wherein the dust-blocking component includes a dust-blocking component opening that allows the filter cover to pass through, and a dust-blocking ring surrounding the dust-blocking component opening and preventing dust from rising.

[0006] Based on the above technical solution, the following supplementary technical solutions are further included:

[0007] The dust-blocking ring includes an outer edge of the dust-blocking component located on the outer side, and an inner edge of the dust-blocking component surrounding the opening of the dust-blocking component and located inside the outer edge of the dust-blocking component.

[0008] The outer edge of the dustproof component abuts against the inner side of the dust cup and is located above the inner edge of the dustproof component.

[0009] The inner and outer edges of the dust-blocking component have cross-sections that are larger at the top and smaller at the bottom along the central axis of the dust cup.

[0010] The dust-blocking ring includes a dust collection port defined by the outer edge of the dust-blocking component and connected to the opening of the dust-blocking component.

[0011] The dust-blocking component includes a support piece that is connected to the outer edge of the dust-blocking component, extends along the central axis of the dust cup, and can guide the flow of dust.

[0012] The center of the support plate and the dust outlet forms a first circumferential angle with the dust-blocking ring, and the first circumferential angle is greater than or equal to 90 degrees and less than or equal to 180 degrees.

[0013] The dust cup includes an air inlet at the upper end, a cover at the lower end for sealing the bottom of the dust cup cavity, and a dust cup latch for locking one end of the cover.

[0014] The support plate is arranged adjacent to the dust cup latch, and the center of the air inlet forms a second circumferential angle with the center of the dust outlet on the projection plane of the dust cup in the axial direction. The second circumferential angle is greater than 90 degrees and less than 180 degrees, and is also less than the first circumferential angle.

[0015] The distance between the lower edge of the air inlet and the shielding cover is 2 to 4 times the distance between the top of the support plate and the shielding cover.

[0016] The beneficial effects of this invention are: reducing the probability of the mesh cover being blocked, improving dust removal performance, extending the working cycle of the dust cup, and improving dust removal efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is an exploded view of the present invention.

[0019] Figure 2 This is a perspective view of the present invention.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is a perspective view of the dust-blocking component in this utility model from one angle.

[0022] Figure 5 This is a perspective view of the dust-blocking component in this utility model from another angle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] Example: Figures 1-5 As shown, this utility model discloses an embodiment of a vacuum cleaner with a dust-blocking component, which includes: a dust cup 100 having a dust cup cavity 104, a housing 200 connected to the dust cup 100, a vacuum motor 300 disposed within the housing 200 and creating a vacuum within the dust cup 100, a filter cover 400 disposed within the dust cup 100 and performing dust-air separation, a power module 500 supplying power to the vacuum motor 300, and a dust-blocking component 600 located outside the filter cover 400 and within the dust cup 100.

[0026] The dust cup 100 is generally cylindrical and made of injection-molded material, often transparent. It includes an air inlet 120 at the upper end, a cover 140 at the lower end for sealing the bottom of the dust cup cavity 104, and a dust cup latch 160 for locking one end of the cover 140. The air inlet 120 is used to tangentially guide the airflow to generate a cyclone.

[0027] The housing 200 includes an air duct 220 located at one end and upstream of the air inlet 120, a handle located at the other end, a housing cavity located therein and housing a vacuum motor 300, and a filter element 240 located above the housing cavity and downstream of the vacuum motor 300. The housing cavity at least partially houses the upper end of the dust cup 100, such that the air inlet 120 is not exposed and is connected to the air duct 220.

[0028] The vacuum motor 300 is preferably a DC motor, and more preferably a DC brushless motor. Its center direction coincides with the center direction of the dust cup 100. The vacuum motor 300 is located above the dust cup 100.

[0029] The filter cover 400 is hollow and annular, located within the dust cup cavity 104, with its center coinciding with the center of the dust cup cavity 104. The outer surface of the filter cover 400 has several mesh openings. The cyclone separator 420 is located inside the filter cover 400 and downstream of the air path. It includes multiple cyclone units at the upper end and a dust collection chamber 440 at the lower end for collecting dust generated by the cyclone units.

[0030] The power module 500 is a reusable battery, preferably a lithium battery or a nickel-metal hydride battery.

[0031] The dust baffle 600 includes a dust baffle opening 620 that allows the filter hood 400 to pass through, and a dust baffle ring 640 surrounding the dust baffle opening 620 and preventing dust from rising. The dust baffle ring 640 includes an outer dust baffle edge 642 located on the outside, and an inner dust baffle edge 644 surrounding the dust baffle opening 620 and located inside the outer dust baffle edge 642. The outer dust baffle edge 642 abuts against the inside of the dust cup 100 and is located above the inner dust baffle edge 644. The cross-sections of the inner dust baffle edge 644 and the outer dust baffle edge 642 along the central axis of the dust cup 100 form a truncated triangle with a larger upper end and a smaller lower end. The dust baffle ring 640 includes a dust collection port 648 defined by the outer dust baffle edge 642 and communicating with the dust baffle opening 620. The dust baffle 600 includes a support plate 660 connected to the outer edge 642 of the dust baffle and extending along the central axis of the dust cup 100 to guide the dust out. The support plate 660 particularly assists in the entry of dust into the dust collection station, while the dust cup 100 is preferably placed horizontally in the dust collection station, at which time the support plate 660 is located below the dust discharge port 648.

[0032] During operation, the dirty airflow enters from one end of the air duct 220 and then tangentially enters the dust cup cavity 104 through the air inlet 120 of the dust cup 100 from the other end of the air duct 220 to generate a primary cyclone. Due to the height difference between the air inlet 120 and the shielding cover 140, large dust particles, under the action of centrifugal force and gravity of the cyclone, enter the inner edge 644 of the dust baffle along the outer edge 642 of the dust baffle and fall onto the shielding cover 140 through the dust discharge port 648. Under the action of the airflow, large dust particles are easily located below the dust baffle ring 640 and are blocked by the dust baffle ring 640 and cannot rise, reducing the probability of the mesh cover being blocked. Meanwhile, the airflow containing fine dust passes through the mesh of the filter cover 400 and enters the cyclone separator 420 for secondary cyclone filtration. The dust after the secondary cyclone falls into the dust collection chamber 440. The shielding cover 140 also shields the bottom of the dust collection chamber 440. Therefore, opening the shielding cover 140 can simultaneously empty the dust cup cavity 104 and the dust collection chamber 440. The airflow that has passed through the two-stage cyclone filtration enters the vacuum motor 300 and is finally filtered through the filter element 240 before being discharged to the outside.

[0033] The advantages of this invention are: reducing the probability of the mesh cover being blocked, improving dust removal performance, extending the working cycle of the dust cup, and improving dust removal efficiency.

[0034] The above are merely preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any modifications and improvements made by those skilled in the art without departing from the inventive concept of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A vacuum cleaner with a dust-blocking component, characterized in that... The device includes a dust cup (100) having a dust cup cavity (104), a housing (200) connected to the dust cup (100), a vacuum motor (300) disposed within the housing (200) and generating a vacuum within the dust cup (100), a filter cover (400) disposed within the dust cup (100) and performing dust-gas separation, and a dust baffle (600) located outside the filter cover (400) and within the dust cup (100), wherein the dust baffle (600) includes a dust baffle opening (620) that allows the filter cover (400) to pass through, and a dust baffle ring (640) surrounding the dust baffle opening (620) and preventing dust from rising.

2. The vacuum cleaner as described in claim 1, characterized in that: The dustproof ring (640) includes an outer edge (642) of the dustproof member located on the outer side, and an inner edge (644) of the dustproof member surrounding the opening (620) of the dustproof member and located inside the outer edge (642) of the dustproof member.

3. The vacuum cleaner as described in claim 2, characterized in that: The outer edge (642) of the dustproof component abuts against the inner side of the dust cup (100) and is located above the inner edge (644) of the dustproof component.

4. The vacuum cleaner as described in claim 3, characterized in that: The inner edge (644) and outer edge (642) of the dustproof component have cross-sections along the central axis of the dust cup (100) that are larger at the top and smaller at the bottom.

5. The vacuum cleaner as described in claim 1, 2, 3, or 4, characterized in that: The dust-blocking ring (640) includes a dust collection port (648) defined by the outer edge (642) of the dust-blocking component and connected to the opening (620) of the dust-blocking component.

6. The vacuum cleaner as described in claim 5, characterized in that: The dust baffle (600) includes a support piece (660) connected to the outer edge (642) of the dust baffle and extending along the central axis of the dust cup (100) to guide the flow of dust.

7. The vacuum cleaner as described in claim 6, characterized in that: The centers of the support plate (660) and the dust outlet (648) form a first circumferential angle in the dust-blocking ring (640), and the first circumferential angle is greater than or equal to 90 degrees and less than or equal to 180 degrees.

8. The vacuum cleaner as described in claim 7, characterized in that: The dust cup (100) includes an air inlet (120) at the upper end, a cover (140) at the lower end for sealing the bottom of the dust cup cavity (104), and a dust cup latch (160) for locking one end of the cover (140).

9. The vacuum cleaner as described in claim 8, characterized in that: The support plate (660) is arranged adjacent to the dust cup latch (160), and the center of the air inlet (120) forms a second circumferential angle with the center of the dust outlet (648) on the projection plane of the dust cup in the axial direction. The second circumferential angle is greater than 90 degrees and less than 180 degrees, and is also less than the first circumferential angle.

10. The vacuum cleaner as described in claim 9, characterized in that: The distance between the lower edge of the air inlet (120) and the shielding cover (140) is within 2 to 4 times the distance between the top of the support plate (660) and the shielding cover (140).

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