Dust collecting device and dust collector

Abstract

The utility model provides a dust collecting device and a dust collector, the dust collecting device comprises a dust cup, and a cyclone separator is arranged in the dust cup; the cyclone separator comprises an air duct, a filter cover and a fan cover, an air inlet of the dust cup is communicated with a port of the first end of the air duct, and a side air outlet is formed in the outer side wall of the second end of the air duct; the filter cover is fixedly arranged on the outer side wall of the first end of the air guide barrel in a sleeving mode. The fan cover is arranged on the air guide cylinder and in the air outlet of the dust cup, and a filtering assembly is arranged in the fan cover; a first dust collection cavity is defined by the outer wall of the filter cover, the outer wall of the fan cover and the inner wall of the dust cup, and a second dust collection cavity is defined by the inner wall of the filter cover and the outer wall of the air duct and communicated with the fan cover. Dust collection airflow sequentially passes through the air guide barrel and the side air outlet to flow into the first dust collection cavity. Then the dust enters the second dust collection cavity and the fan cover after being filtered for the first time by the filter cover, and finally is discharged out of the dust cup after being filtered for the second time by the filter assembly in the fan cover, so that the filter effect is favorably improved, and the service life of the filter assembly is favorably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a dust collection device and a vacuum cleaner. Background Art

[0002] With the rapid development of small household appliance technology and the continuous improvement of people's living standards, vacuum cleaners have become one of the essential electrical appliances in people's daily life. A vacuum cleaner generally includes a dust collection cup and a suction assembly. A filtering structure is provided in the dust collection cup. Under the suction of the suction assembly, dust is sucked into the dust collection cup, and air-dust separation is achieved through the filtering structure.

[0003] For example, a Chinese patent with the publication number CN218165180U discloses a dust collection device for a surface cleaner, including a dust cup and a cup cover provided at the rear end of the dust cup. A cyclone separator cooperating with the cup cover is provided in the dust cup. The cyclone separator is provided with an inner cylinder and an outer cylinder. The outer cylinder is provided with a first air outlet and a filtering part which are circumferentially staggered. The inner cylinder extends into the outer cylinder, and the cavity of the inner cylinder communicates with the first air outlet. The dust cup is provided with an air inlet communicating with the cavity of the inner cylinder, and the cup cover is provided with a second air outlet. The dust collection air flow flowing out from the first air outlet passes through the filtering part and then is discharged from the second air outlet of the dust collection device. The above setting of the prior art enables the air sucked into the dust collection device to be discharged after being filtered by the filtering part provided on the outer cylinder, and its filtering effect is poor.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a dust collection device and a vacuum cleaner aiming at the defects and deficiencies of the prior art, so that the dust collection air flow entering the dust cup is discharged after being filtered twice, the filtering effect is improved, and it is beneficial to extend the service life of the filtering component.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a dust collection device, including a dust cup, and a cyclone separator is provided in the dust cup; the cyclone separator includes a wind guiding cylinder, a filtering cover and a wind cover. The air inlet of the dust cup communicates with the first end port of the wind guiding cylinder. A side air outlet is provided on the outer wall of the second end of the wind guiding cylinder; the filtering cover is sleeved and fixed on the outer wall of the first end of the wind guiding cylinder; the wind cover is arranged on the wind guiding cylinder, the wind cover is arranged in the air outlet of the dust cup, and a filtering component is arranged in the wind cover; a first dust collection cavity is formed between the outer wall of the filtering cover, the outer wall of the wind cover and the inner wall of the dust cup. A second dust collection cavity is formed between the inner wall of the filtering cover and the outer wall of the wind guiding cylinder, and the second dust collection cavity communicates with the wind cover.

[0008] Through the above structural arrangement, the dust collection air flow sequentially passes through the air guide cylinder and the side air outlet and flows into the first dust collection cavity. The dust collection air flow is discharged from the side air outlet and impacts the inner wall of the dust cup, thereby rotating around the inner wall to form a cyclone air flow, which is beneficial to improving the air-dust separation effect. Then, after being filtered by the filter cover for the first time, it sequentially enters the second dust collection cavity and the air hood, and finally is discharged from the dust cup after being filtered by the filter component in the air hood for the second time, which is beneficial to improving the filtering effect and prolonging the service life of the filter component.

[0009] According to the above solution, a wind guiding plate spirally surrounding the outer wall of the air guide cylinder is formed on the bottom surface of the air hood. A cyclone passage is formed between the wind guiding plate and the inner wall of the dust cup, and the side air outlet is located in the cyclone passage.

[0010] Through the above structural arrangement, the flow rate of the air flow discharged from the side air outlet is increased, which is beneficial to improving the separation speed of the air flow in the first dust collection cavity.

[0011] According to the above solution, a baffle for allowing the air flow at the side air outlet to enter the cyclone passage is provided at the inlet end of the cyclone passage; the baffle is formed on the air hood.

[0012] According to the above solution, the air inlet of the dust cup is communicated with the first end port of the air guide cylinder through an air inlet pipe. The air inlet pipe is arranged inside the dust cup, and the first end of the air inlet pipe is fixedly connected to the air inlet of the dust cup.

[0013] According to the above solution, the filter cover includes an upper cover and a cover cylinder. The upper cover is fixed on the cover cylinder. The upper cover is provided with a through hole, and a sealing ring is arranged in the through hole. The air guide cylinder and the air inlet pipe are respectively inserted into the through hole and are in abutting contact with the upper and lower sides of the sealing ring respectively.

[0014] By inserting the air inlet pipe and the air guide cylinder into the through hole and respectively abutting against the upper and lower sides of the sealing ring, the air inlet pipe and the air guide cylinder are communicated through the sealing ring, improving the sealing performance of their connection.

[0015] According to the above solution, a plurality of grille pieces are provided on the circumference of the cover cylinder.

[0016] Through the above structural arrangement, when the cyclone air flow rotates and flows through the grille pieces, the air flow impacts the grille pieces, so that large-sized dust is isolated by the grille pieces in the first dust collection cavity, preventing large-sized dust from passing through the second dust collection cavity and the air hood, which is beneficial to prolonging the service life of the filter component.

[0017] It can be understood that in some embodiments, the filter cover can be set as a filter mesh cover according to actual needs; or the filter cover is set to include a cover body, and filter holes are provided on the circumference of the cover body.

[0018] According to the above solution, a convex ring is provided on the outer side wall of the wind cover, and a limiting shoulder that cooperates with the convex ring is provided on the inner side wall of the air outlet of the dust cup; when the convex ring abuts against the limiting shoulder, the second end of the air inlet pipe abuts against the lower side of the sealing ring.

[0019] Through the above structural arrangement, the cyclone separator is quickly positioned and installed in the dust cup by the cooperation of the convex ring and the limiting shoulder; at this time, the second end of the air inlet pipe abuts against the lower side of the sealing ring, so that the air inlet pipe is communicated with the air guide cylinder; when the cyclone separator is taken out of the dust cup, the cyclone separator can be disconnected from the air inlet pipe, which is convenient for cleaning the cyclone separator.

[0020] According to the above solution, a peripheral edge that extends obliquely away from the cyclone separator is provided on the outer periphery of the upper cover.

[0021] By providing the peripheral edge on the upper cover, the peripheral edge can block the dust accumulated at the lower part of the dust cup, and can prevent the accumulated dust from flowing towards the upper part of the dust cup under the action of the dust collection air flow, which is beneficial to improving the dust collection effect.

[0022] According to the above solution, the filter assembly includes a filter element holder, a filter element and a seal. The filter element is fixed on the filter element holder, and the filter element holder abuts against the wind cover; the seal is provided on the outer periphery of the filter element holder, and the seal abuts against the inner side wall of the air outlet of the dust cup.

[0023] Through the above structural arrangement, the sealing performance between the filter assembly and the air outlet of the dust cup is improved, effectively ensuring that the air flow entering the wind cover is discharged from the dust cup only after being filtered by the filter assembly.

[0024] It can be understood that the filter element can be set as a HEPA filter element, a filter paper cylinder, etc. according to actual needs, and the present invention is not limited thereto.

[0025] The present invention provides a vacuum cleaner, which includes the above dust collection device and a main body. The dust collection device is detachably installed on the main body, and a suction head pipe and a suction assembly that are respectively butted and communicated with the air inlet and the air outlet of the dust collection device are provided on the main body.

[0026] The beneficial effects of the present invention are as follows:

[0027] The utility model sets the structure of the cyclone separator arranged in the dust cup, so that the dust-collecting air flow sequentially passes through the air guide cylinder and the side air outlet and flows into the first dust-collecting cavity. The dust-collecting air flow is discharged from the side air outlet and impacts the inner side wall of the dust cup, thus rotating around the inner side wall to form a cyclone air flow, which is beneficial to improving the air-dust separation effect. Then, after being filtered by the filter cover for the first time, it sequentially enters the second dust-collecting cavity and the air hood, and finally is discharged from the dust cup after being filtered by the filter assembly in the air hood for the second time, which is beneficial to improving the filtering effect and prolonging the service life of the filter assembly. Description of the Drawings

[0028] Figure 1 is the structural schematic diagram of the dust collection device of the present utility model Figure 1 ;

[0029] Figure 2 is the structural schematic diagram of the dust collection device of the present utility model Figure 2 ;

[0030] Figure 3 is Figure 2 the enlarged view of part A in

[0031] Figure 4 is Figure 2 the enlarged view of part B in

[0032] Figure 5 is the structural schematic diagram of the dust collection device of the present utility model Figure 3 ; among them, the arrow direction indicates the flow direction of the air flow;

[0033] Figure 6 is the structural schematic diagram of the vacuum cleaner of the present utility model Figure 1 ;

[0034] Figure 7 is the structural schematic diagram of the vacuum cleaner of the present utility model Figure 2 ; among them, the arrow direction indicates the flow direction of the air flow.

[0035] In the figure: 1. Dust cup; 11. Air inlet; 111. Air inlet pipe; 12. Air outlet; 121. Limit shoulder; 13. First dust collection cavity; 14. Second dust collection cavity; 15. Cyclone channel; 2. Cyclone separator; 21. Air guide cylinder; 211. Side air outlet; 22. Filter cover; 221. Upper cover; 222. Cylinder; 2221. Grid sheet; 23. Air hood; 231. Air guide plate; 232. Baffle; 233. Convex ring; 24. Through hole; 25. Sealing ring; 26. Perimeter; 3. Filter assembly; 31. Filter element holder; 32. Filter element; 33. Sealing member; 4. Main body; 41. Suction head pipe; 42. Suction component. Detailed Embodiments

[0036] The technical solution of the present utility model will be described below in conjunction with the accompanying drawings and embodiments.

[0037] As Figures 1 - 5 shown, the present utility model provides a dust collection device, including a dust cup 1, and a cyclone separator 2 is arranged in the dust cup 1; the cyclone separator 2 includes a wind guide cylinder 21, a filter cover 22 and a wind cover 23. The air inlet 11 of the dust cup 1 is communicated with the port of the first end of the wind guide cylinder 21, and a side air outlet 211 is arranged on the outer side wall of the second end of the wind guide cylinder 21; the filter cover 22 is sleeved and fixed on the outer side wall of the first end of the wind guide cylinder 21; the wind cover 23 is arranged on the wind guide cylinder 21, and the wind cover 23 is arranged in the air outlet 12 of the dust cup 1, and a filter assembly 3 is arranged in the wind cover 23; a first dust collection chamber 13 is formed between the outer wall of the filter cover 22, the outer wall of the wind cover 23 and the inner wall of the dust cup 1, a second dust collection chamber 14 is formed between the inner wall of the filter cover 22 and the outer wall of the wind guide cylinder 21, and the second dust collection chamber 14 is communicated with the wind cover 23.

[0038] Through the above structural arrangement, the dust collection air flow sequentially passes through the wind guide cylinder 21 and the side air outlet 211 and flows into the first dust collection chamber 13. The dust collection air flow is discharged from the side air outlet 211 and impacts the inner side wall of the dust cup 1 and thus rotates around the inner side wall to form a cyclone air flow, which is beneficial to improving the air-dust separation effect; then after being first filtered by the filter cover 22, it sequentially enters the second dust collection chamber 14 and the wind cover 23, and finally is discharged from the dust cup 1 after being second filtered by the filter assembly 3 in the wind cover 23, which is beneficial to improving the filtering effect and is beneficial to extending the service life of the filter assembly 3.

[0039] Furthermore, a wind guide plate 231 that spirally surrounds the outer side wall of the wind guide cylinder 21 is formed on the bottom surface of the wind cover 23. A cyclone channel 15 is formed between the wind guide plate 231 and the inner wall of the dust cup 1, and the side air outlet 211 is located in the cyclone channel 15.

[0040] Through the above structural arrangement, the flow rate of the air flow discharged from the side air outlet 211 is increased, which is beneficial to increasing the separation speed of the air flow in the first dust collection chamber 13.

[0041] Furthermore, a baffle 232 for enabling the air flow at the side air outlet 211 to enter the cyclone channel 15 is arranged at the inlet end of the cyclone channel 15; the baffle 232 is formed on the wind cover 23.

[0042] Furthermore, the air inlet 11 of the dust cup 1 is communicated with the port of the first end of the wind guide cylinder 21 through an air inlet pipe 111. The air inlet pipe 111 is arranged in the dust cup 1, and the first end of the air inlet pipe 111 is fixedly connected with the air inlet 11 of the dust cup 1.

[0043] Furthermore, the filter cover 22 includes an upper cover 221 and a cover cylinder 222. The upper cover 221 is fixed on the cover cylinder 222. The upper cover 221 is provided with a through hole 24, and a sealing ring 25 is arranged in the through hole 24. The air inlet pipe 111 and the air guide cylinder 21 are respectively inserted into the through hole 24 and are respectively in abutting contact with the upper and lower sides of the sealing ring 25.

[0044] By inserting the air guide cylinder 21 and the air inlet pipe 111 into the through hole 24 and respectively abutting against the upper and lower sides of the sealing ring 25, the air inlet pipe 111 and the air guide cylinder 21 are communicated through the sealing ring 25, improving the tightness of the connection between the two.

[0045] Furthermore, a plurality of grille pieces 2221 are arranged on the circumference of the cover cylinder 222.

[0046] With the above structural arrangement, when the cyclone air flow rotates and flows through the grille pieces 2221, the air flow impacts the grille pieces 2221, so that large-sized dust is isolated by the grille pieces 2221 in the first dust collection chamber 13, preventing the large-sized dust from passing through the second dust collection chamber 14 and the air hood 23, which is beneficial to extending the service life of the filter assembly 3.

[0047] Furthermore, a convex ring 233 is arranged on the outer side wall of the air hood 23, and a limiting shoulder 121 matched with the convex ring 233 is arranged on the inner side wall of the air outlet 12 of the dust cup 1; when the convex ring 233 abuts against the limiting shoulder 121, the second end of the air inlet pipe 111 abuts against the lower side of the sealing ring 25.

[0048] With the above structural arrangement, through the cooperation of the convex ring 233 and the limiting shoulder 121, the cyclone separator 2 is quickly positioned and installed in the dust cup 1; at this time, the second end of the air inlet pipe 111 abuts against the lower side of the sealing ring 25, enabling the air inlet pipe 111 and the air guide cylinder 21 to be communicated; when the cyclone separator 2 is taken out of the dust cup 1, the connection between the cyclone separator 2 and the air inlet pipe 111 can be released, facilitating the cleaning of the cyclone separator 2.

[0049] Furthermore, a surrounding edge 26 extending obliquely away from the cyclone separator 2 is arranged on the outer periphery of the upper cover 221.

[0050] By arranging the surrounding edge 26 on the upper cover 221, the surrounding edge 26 can block the dust accumulated at the lower part of the dust cup 1, preventing the accumulated dust from flowing towards the upper part of the dust cup 1 under the action of the dust collection air flow, which is beneficial to improving the dust collection effect.

[0051] Furthermore, the filtering component 3 includes a filter element holder 31, a filter element 32 and a seal 33. The filter element 32 is fixed on the filter element holder 31, and the filter element holder 31 abuts against the air hood 23; the seal 33 is arranged on the outer periphery of the filter element holder 31, and the seal 33 abuts against the inner side wall of the air outlet 12 of the dust cup 1.

[0052] With the above structural arrangement, the sealing performance between the filtering component 3 and the air outlet 12 of the dust cup 1 is improved, effectively ensuring that the air flow entering the air hood 23 is discharged from the dust cup 1 only after being filtered by the filtering component 3.

[0053] As Figures 6 - 7 shown, the present utility model further provides a vacuum cleaner, which includes the above dust collection device and a main body 4. The dust collection device is detachably installed on the main body 4, and a suction head pipe 41 and a suction component 42 which are respectively in butt joint and communication with the air inlet 11 and the air outlet 12 of the dust collection device are arranged on the main body 4.

[0054] When the vacuum cleaner of the present utility model is in use, the dust collection device is installed on the main body 4, such that the suction head pipe 41 and the suction component 42 which are respectively in butt joint and communication with the air inlet 11 and the air outlet 12 of the dust collection device; at this time, the filter element holder 31 abuts against the air hood 23, the convex ring 233 on the outer side wall of the air hood 23 abuts against the limiting shoulder 121 on the inner side wall of the air outlet 12 of the dust cup 1, and the second end of the air inlet pipe 111 abuts against and contacts the lower side of the sealing ring 25; the suction component 42 is turned on to generate negative pressure in the dust cup 1, and the dust collection air flow sequentially enters the first dust collection chamber 13 from the suction head pipe 41, the air inlet 11, the air inlet pipe 111, the air guide cylinder 21, the side air outlet 211 and the cyclone channel 15. The dust collection air flow impacts the inner side wall of the dust cup 1 along the cyclone channel 15 and thus rotates around the inner side wall to form a cyclone air flow; the cyclone air flow is first filtered by the filter cover 22 and then sequentially enters the second dust collection chamber 14 and the air hood 23, and finally is discharged from the dust cup 1 after being secondarily filtered by the filtering component 3 in the air hood 23.

[0055] The above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A dust collection device, comprising a dust cup (1), wherein a cyclone separator (2) is provided inside the dust cup (1), and is characterized in that the cyclone separator (2) includes an air guide cylinder (21), a filter cover (22) and a wind cover (23), an air inlet (11) of the dust cup (1) is communicated with a first end port of the air guide cylinder (21), and a side air outlet (211) is provided on an outer side wall of a second end of the air guide cylinder (21); the filter cover (22) is sleeved and fixed on an outer side wall of the first end of the air guide cylinder (21); the wind cover (23) is arranged on the air guide cylinder (21), the wind cover (23) is arranged inside an air outlet (12) of the dust cup (1), and a filter assembly (3) is provided inside the wind cover (23); a first dust collection chamber (13) is formed between an outer wall of the filter cover (22), an outer wall of the wind cover (23) and an inner wall of the dust cup (1), a second dust collection chamber (14) is formed between an inner wall of the filter cover (22) and an outer wall of the air guide cylinder (21), and the second dust collection chamber (14) is communicated with the wind cover (23).

2. The dust collecting device according to claim 1, wherein A wind guide plate (231) spirally surrounding an outer side wall of the air guide cylinder (21) is formed on a bottom surface of the wind cover (23), a cyclone passage (15) is formed between the wind guide plate (231) and an inner wall of the dust cup (1), and the side air outlet (211) is located inside the cyclone passage (15).

3. The dust collecting device according to claim 2, wherein A baffle (232) for enabling the air flow at the side air outlet (211) to enter the cyclone passage (15) is provided at an inlet end of the cyclone passage (15); the baffle (232) is formed on the wind cover (23).

4. The dust collecting device according to claim 1, wherein The air inlet (11) of the dust cup (1) is communicated with the first end port of the air guide cylinder (21) through an air inlet pipe (111), the air inlet pipe (111) is arranged inside the dust cup (1), and a first end of the air inlet pipe (111) is fixedly connected with the air inlet (11) of the dust cup (1).

5. The dust collecting device according to claim 4, wherein The filter cover (22) includes an upper cover (221) and a cover cylinder (222), the upper cover (221) is fixed on the cover cylinder (222), a through hole (24) is provided on the upper cover (221), a sealing ring (25) is provided inside the through hole (24), and the air guide cylinder (21) and the air inlet pipe (111) are respectively inserted into the through hole (24) and respectively abutted against upper and lower sides of the sealing ring (25).

6. The dust collecting device according to claim 5, characterized in that, A plurality of grid sheets (2221) are provided on a circumference of the cover cylinder (222).

7. The dust collecting device according to claim 5, characterized in that A convex ring (233) is provided on an outer side wall of the wind cover (23), and a limiting shoulder (121) matched with the convex ring (233) is provided on an inner side wall of the air outlet (12) of the dust cup (1); when the convex ring (233) abuts against the limiting shoulder (121), a second end of the air inlet pipe (111) abuts against the lower side of the sealing ring (25).

8. The dust collecting device according to claim 5, wherein A peripheral edge (26) inclinedly extending away from the cyclone separator (2) is provided on an outer circumference of the upper cover (221).

9. The dust collecting device according to claim 1, characterized in that, The filtering component (3) includes a filter element holder (31), a filter element (32) and a seal (33). The filter element (32) is fixed on the filter element holder (31), and the filter element holder (31) abuts against the wind hood (23). The seal (33) is arranged on the outer periphery of the filter element holder (31), and the seal (33) abuts against the inner side wall of the air outlet (12) of the dust cup (1).

10. A vacuum cleaner, characterized in that, It includes the dust collection device and the main body (4) as described in any one of claims 1-9. The dust collection device is detachably installed on the main body (4), and a suction head pipe (41) and a suction component (42) which are respectively butted and communicated with the air inlet (11) and the air outlet (12) of the dust collection device are arranged on the main body (4).

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