Dust cup structure of a dust collector

Abstract

This utility model discloses a dustbin structure for a vacuum cleaner, including a dustbin and a filter module installed inside the dustbin. The filter module includes a cyclone filter cup forming a cyclone channel and a filter bracket equipped with filter cotton and a HEPA filter. The filter bracket is fixedly mounted on the top opening of the cyclone filter cup. The side wall of the cyclone filter cup has a connecting port that communicates with the dustbin, and the connecting port is covered with a filter screen. The bottom of the filter bracket has an air inlet sleeve that extends downward into the cyclone filter cup. The top of the filter bracket forms an air outlet that connects with the main unit of the vacuum cleaner. After the vacuum cleaner is started, the airflow carrying debris enters the dustbin and is sucked into the filter module. At this point, a large amount of debris in the airflow is intercepted by the filter screen in the dustbin. After the airflow enters the cyclone filter cup, the dust particles carried by the airflow cannot directly enter the filter support due to the presence of the air inlet sleeve. Instead, they settle at the bottom of the cyclone filter cup due to the airflow path of the cyclone channel and the effect of gravity. The airflow then goes up from the bottom of the air inlet sleeve and enters the filter support. It then passes through the filter cotton and filter HEPA for filtration, achieving a good four-stage filtration effect. This improves the cleaning ability for the intake airflow and solves the previous problems of airflow carrying dust damaging the fan and the filter cotton or filter HEPA being worn out too quickly.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum cleaners, specifically a dustbin structure for a vacuum cleaner. Background Technology

[0002] A vacuum cleaner is a common cleaning device used for vacuuming and sweeping floors. Generally, the dustbin of a vacuum cleaner has a relatively simple filtration structure, using a simple air duct and a filter cotton or HEPA filter to filter the air. The filtration effect is not good; small dust particles still remain in the filtered air. If these particles are sucked into the vacuum cleaner's main unit, they can easily damage the internal fan. Furthermore, due to the simple air duct, larger dust particles and debris can easily enter the duct and directly impact the filter cotton or HEPA filter, rapidly shortening their lifespan. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a dust cylinder structure for a vacuum cleaner.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A dustbin structure for a vacuum cleaner includes a dustbin and a filter module installed in the dustbin; the filter module includes a cyclone filter cup forming a cyclone channel and a filter bracket with filter cotton and filter HEPA. The filter bracket is fixedly mounted on the top opening of the cyclone filter cup. The side wall of the cyclone filter cup has a connecting port that communicates with the dustbin. The connecting port is covered with a filter screen. The bottom of the filter bracket has an air inlet sleeve that extends downward into the cyclone filter cup. The top of the filter bracket forms an air outlet that connects with the main unit of the vacuum cleaner.

[0006] The bottom end of the air inlet sleeve is lower than the connecting port.

[0007] The extension length of the air inlet sleeve is at least greater than or equal to half the height of the cyclone filter cup.

[0008] The dust cylinder has a dust discharge port at the bottom, which is closed or opened by a dust discharge cover. The lower part of the cyclone filter cup has a receiving cavity, and the bottom of the receiving cavity has a discharge port. The discharge port and the dust discharge port are closed or opened by the dust discharge cover at the same time.

[0009] The lower sidewall of the receiving cavity slopes inward in a funnel shape.

[0010] The bottom of the receiving cavity is connected to a discharge nozzle, and the discharge port is formed by the discharge nozzle.

[0011] The filter support also includes a first step portion for accommodating the filter HEPA filter and a second step portion for accommodating the filter cotton, with the air inlet sleeve formed below the second step portion.

[0012] The connecting ports are multiple circumferentially arranged on the side wall of the cyclone filter cup, and three cyclone blades curved in a spiral direction are arranged inside the cyclone filter cup behind the connecting ports.

[0013] The dustbin has an air inlet on its side wall that connects to the vacuum cleaner's suction channel. The air inlet has an air guide structure that allows the airflow entering through the air inlet to enter the dustbin at an angle.

[0014] The beneficial effects of this utility model are as follows: The filter module of this utility model includes a cyclone filter cup forming a cyclone channel and a filter bracket with filter cotton and filter HEPA. The filter bracket is fixedly installed on the top opening of the cyclone filter cup. The side wall of the cyclone filter cup is provided with a connecting port covered with a filter screen. The bottom of the filter bracket is provided with an air inlet sleeve that extends downward into the cyclone filter cup. After the vacuum cleaner is started, the airflow carrying garbage enters the dustbin and is sucked into the filter module. At this time, a large amount of garbage in the airflow is intercepted in the dustbin by the filter screen. After the airflow enters the cyclone filter cup, the dust particles carried by the airflow cannot directly enter the filter bracket due to the presence of the air inlet sleeve. Instead, they will settle at the bottom of the cyclone filter cup due to the airflow path of the cyclone channel and the action of gravity. The airflow then goes up from the bottom of the air inlet sleeve and enters the filter bracket. It is then filtered by the filter cotton and filter HEPA, achieving a good filtration effect of four-stage filtration, improving the cleaning ability of the suction airflow, and solving the problems of dust carried by the airflow damaging the fan and the rapid wear of the filter cotton or filter HEPA in the past. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a split diagram of the present invention. Detailed Implementation

[0019] Reference Figures 1 to 3A dustbin structure for a vacuum cleaner includes a dustbin 1 and a filter module installed in the dustbin 1. The filter module includes a cyclone filter cup 2 forming a cyclone channel and a filter bracket 3 fitted with filter cotton 4 and a HEPA filter 5. The filter bracket 3 is fixedly mounted on the top opening of the cyclone filter cup 2. The side wall of the cyclone filter cup 2 has a connecting port 21 that connects to the dustbin 1. The connecting port 21 is covered with a filter screen 6 made of steel. The bottom of the filter bracket 3 has an air inlet sleeve 31 extending downwards into the cyclone filter cup 2, and the top of the filter bracket 3 forms an air outlet 32 ​​that connects to the main unit of the vacuum cleaner. After the vacuum cleaner is started, the airflow carrying debris enters the dustbin 1 and is sucked into the filter module. At this time, a large amount of debris in the airflow is intercepted in the dustbin 1 by the filter screen 6, which is the first stage of filtration. Then, after the airflow enters the cyclone filter cup 2, the dust particles carried by the airflow are blocked by the air inlet sleeve 31 and cannot directly enter the filter bracket 3. Instead, they are deposited at the bottom of the cyclone filter cup 2 due to the airflow path of the cyclone channel and the effect of gravity, which is the second stage of filtration. The airflow then goes up from the bottom of the air inlet sleeve 31 and enters the filter bracket 3, and is then filtered by the filter cotton 4 and the filter HEPA 5, which are the third and fourth stages of filtration. Finally, a good filtration effect of four-stage filtration is achieved, which improves the cleaning ability of the suction airflow and solves the problem of dust carried by the airflow damaging the fan. In addition, after the dust particles carried by the airflow are blocked by the cyclone channel and the air inlet sleeve 31, less dust particles enter the filter bracket 3, which solves the problem of excessive wear of the filter cotton 4 and the filter HEPA 5.

[0020] As a preferred embodiment of this utility model, the bottom end of the air inlet sleeve 31 is lower than the connecting port 21, that is, the airflow entering from the connecting port 21 will be blocked downward by the side wall of the air inlet sleeve 31. Furthermore, the extension length of the air inlet sleeve 31 is at least greater than or equal to half the height of the cyclone filter cup 2, so that the dust particles blocked by the air inlet sleeve 31 can fall more easily into the bottom of the cyclone filter cup 2.

[0021] As a preferred embodiment, the dustbin 1 has a dust discharge port 11 at its bottom, which is closed or opened by a dust discharge cover 12. The cyclone filter cup 2 has a receiving cavity 22 at its lower part, and a discharge port is provided at the bottom of the receiving cavity 22. The discharge port and the dust discharge port 11 are closed or opened by the dust discharge cover 12 at the same time. While the dustbin 1 discharges dirt, the dust particles settled in the cyclone filter cup 2 are also discharged. Furthermore, the lower sidewall of the receiving cavity 22 is inclined inward in a funnel shape, which facilitates the rapid discharge of dust particles inside the receiving cavity 22 during sewage discharge. Furthermore, the bottom of the receiving cavity 22 is connected to a discharge nozzle 23, which forms the discharge port. The design of the discharge nozzle 23 allows it to be better closed by the dust discharge cover 12. Especially after the lower sidewall of the receiving cavity 22 becomes funnel-shaped, a small cavity is formed between the discharge nozzle 23 and the funnel-shaped lower sidewall. Dust particles guided down by the funnel-shaped sidewall fall into this cavity and are difficult to float out.

[0022] Preferably, the filter support 3 also includes a first step portion 33 for accommodating the filter HEPA 5 and a second step portion 34 for accommodating the filter cotton 4. The air inlet sleeve 31 is formed below the second step portion 34, that is, according to the airflow direction, it passes through the filter cotton 4 first and then the filter HEPA 5. The replacement cost of the filter cotton 4 is lower, so arranging it in front of the filter HEPA 5 can further save on usage costs.

[0023] Preferably, the connecting ports 21 are multiple circumferentially arranged on the side wall of the cyclone filter cup 2, and three cyclone blades 25 curved in a spiral direction are arranged inside the cyclone filter cup 2 behind the connecting ports 21, so as to achieve a good guiding effect to form a uniform cyclone.

[0024] Preferably, the side wall of the dustbin 1 is provided with an air inlet 13 that connects to the suction channel of the vacuum cleaner. The air inlet 13 is provided with an air guiding structure so that the airflow entering through the air inlet 13 enters the dustbin 1 at an angle, thereby preventing the garbage carried by the airflow from directly hitting the filter module. A spiral airflow is also formed in the dustbin 1. Under the influence of the airflow and gravity, larger garbage falls to the bottom of the dustbin 1 before contacting the filter module, thus playing a certain filtering role. Together with the filter module, it forms a five-fold filtration effect.

Claims

1. A dustbin structure for a vacuum cleaner, comprising a dustbin (1) and a filter module installed in the dustbin (1); characterized in that: The filter module includes a cyclone filter cup (2) forming a cyclone channel and a filter bracket (3) with filter cotton (4) and filter HEPA (5) installed. The filter bracket (3) is fixed on the top opening of the cyclone filter cup (2). The side wall of the cyclone filter cup (2) is provided with a connecting port (21) for connecting to the dust cylinder (1). The connecting port (21) is covered with a filter screen (6). The bottom of the filter bracket (3) is provided with an air inlet sleeve (31) extending downward into the cyclone filter cup (2). The top of the filter bracket (3) forms an air outlet (32) that connects to the vacuum cleaner main unit.

2. The dustbin structure according to claim 1, characterized in that: The bottom end of the air inlet sleeve (31) is lower than the connecting port (21).

3. The dustbin structure according to claim 1 or 2, characterized in that: The extension length of the air inlet sleeve (31) is at least greater than or equal to half the height of the cyclone filter cup (2).

4. The dustbin structure according to claim 1, characterized in that: The dust cylinder (1) has a dust discharge port (11) at the bottom, which is closed or opened by a dust discharge cover (12). The cyclone filter cup (2) has a receiving cavity (22) at the bottom, and a discharge port is provided at the bottom of the receiving cavity (22). The discharge port and the dust discharge port (11) are closed or opened by the dust discharge cover (12) at the same time.

5. The dustbin structure according to claim 4, characterized in that: The lower sidewall of the receiving cavity (22) is inclined inward in a funnel shape.

6. The dustbin structure according to claim 5, characterized in that: The bottom of the receiving cavity (22) is connected to a discharge nozzle (23), and the discharge port is formed by the discharge nozzle (23).

7. The dustbin structure according to claim 1, characterized in that: The filter support (3) further includes a first step (33) for accommodating the filter HEPA (5) and a second step (34) for accommodating the filter cotton (4), with the air inlet sleeve (31) formed below the second step (34).

8. The dustbin structure according to claim 1, characterized in that: The connecting ports (21) are multiple ones arranged circumferentially around the side wall of the cyclone filter cup (2), and three cyclone blades (25) curved in a spiral direction are arranged inside the cyclone filter cup (2) behind the connecting ports (21).

9. The dustbin structure according to claim 1, characterized in that: The dustbin (1) has an air inlet (13) on its side wall that connects to the vacuum cleaner's suction channel. The air inlet (13) has an air guiding structure that allows the airflow entering through the air inlet (13) to enter the dustbin (1) at an angle.

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