Dual dust cup dust collection device and dust collection and filtering method thereof

Abstract

The present invention provides a double dust cup dust suction device and a dust suction and filtering method thereof, wherein the double dust cup dust suction device comprises a body, on which a filter dust cup and a dust collecting dust cup are detachably provided, respectively, and are independent of each other, and the upper ends of the filter dust cup and the dust collecting dust cup are connected through a dust collecting channel; the filter dust cup is provided with an air inlet and an exhaust outlet; a cyclone shield is provided in the filter dust cup along the axial direction, and a filter element assembly is detachably installed in the cyclone shield, and a cyclone cavity is formed between the outer wall of the cyclone shield and the inner wall of the filter dust cup, and the cyclone shield isolates the filter element assembly and the cyclone cavity radially; a filter inlet is formed at the upper end of the cyclone shield, and external dirty air enters the cyclone cavity through the air inlet, and enters the filter element assembly and the exhaust outlet in turn through the filter inlet. The filter dust cup and the dust collecting dust cup of the present invention can be detachably cleaned separately; a cyclone shield is provided in the filter dust cup, and the effect of cyclone separation of dust is good, and there is no need to frequently clean the internal filter element assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of dust collection equipment, and in particular to a double dust cup dust collection equipment and a dust collection and filtering method thereof. Background Art

[0002] Some household vacuum cleaners, such as dust mite removers, generally include a roller brush, a dust cup, and a filter assembly. Air enters the dust cup for dust collection and filtration, and is discharged from the exhaust port. Most traditional dust mite removers only include one dust cup, and both filtration and dust collection are achieved in one dust cup. In addition, during the cyclone filtration process, some dust-carrying air has begun to be sucked into the filter element and the exhaust port by the exhaust mechanism, and the cyclone is easily dispersed and attenuated, resulting in a relatively poor cyclone separation effect.

[0003] The application publication number is CN 112155471 A's Chinese invention patent is taken as an example, which discloses a mite removal device, including a dust suction head component, a suction generating chamber, a docking chamber, a dust and gas separation device and a roller brush assembly. The dust and gas separation device includes a cyclone chamber, a dust collecting chamber and a filter element. The filter element is installed in the cyclone chamber. The cyclone chamber and the dust collecting chamber are interconnected as a whole. The dust collecting chamber cannot be disassembled and cleaned separately. The dust and gas separation device still needs to be disassembled as a whole, and the dust can be dumped after the top cover is opened, which is inconvenient for users to use. In addition, when the external air enters the annular cyclone chamber through the air inlet, due to the large negative pressure formed by the exhaust at the exhaust port at the bottom of the filter element, part of the dirty air is directly filtered through the filter element and enters the exhaust port before a cyclone is formed, resulting in dust being adsorbed on the filter screen of the filter element before the cyclone starts to rise, causing the filter element to be blocked. Users have to spend a considerable amount of time frequently cleaning the filter element and filter screen assembly. At the same time, the dirty air is extracted too early at the filter element, resulting in a relatively fast airflow decay, and the dust cyclone separation effect is also reduced. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the present invention is to provide a double dust cup vacuum cleaner device and a dust suction and filtering method thereof, which is provided with an independent filtering dust cup and a dust collecting dust cup, and the dust collecting dust cup can be removed separately to dump the dust, which is convenient for users to use; the filtering dust cup has a good dust separation and filtering effect, and prolongs the service life of the filter element filter.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a double dust cup dust suction device and a dust suction and filtering method thereof, wherein the double dust cup dust suction device comprises a main body, on which are detachably provided with mutually independent filter dust cups and dust collecting dust cups, the filter dust cups and the upper ends of the dust collecting dust cups are connected through a dust collecting channel; the filter dust cups are provided with an air inlet and an exhaust outlet; a cyclone shield is provided in the filter dust cup extending along the axial direction, a filter element assembly is detachably installed in the cyclone shield, a cyclone chamber is formed between the outer wall of the cyclone shield and the inner wall of the filter dust cup, the cyclone shield radially isolates the filter element assembly and the cyclone chamber; a filter inlet is formed at the upper end of the cyclone shield, and external dirty air enters the cyclone chamber through the air inlet, and enters the filter element assembly and the exhaust outlet in turn through the filter inlet. By setting the cyclone shield, the filter element assembly and the cyclone chamber are separated in the radial direction, so that the external dirty air will not be directly sucked into the filter element assembly and the exhaust outlet when entering the air inlet, but can only rise through the cyclone chamber in a cyclone. After rising to the top position, most of the dust will enter the dust collecting channel through the dust collecting channel, and the air mixed with a small amount of dust can only enter the filter element assembly for filtration through the filter inlet at the upper end of the cyclone shield; wherein, a primary filter element is also installed at the filter inlet, which is first filtered by the primary filter element and then enters the filter element assembly for filtration; the primary filter element can be a filter sponge.

[0008] Furthermore, the main body is provided with a first connecting seat, the dust collecting channel is provided on the first connecting seat, and the dust collecting channel is respectively arranged tangentially to the filter dust cup and the dust collecting cup.

[0009] Furthermore, the filter dust cup and the dust collecting cup respectively include a cup body and a dust port arranged at the upper end of the cup body, and the dust port is connected to the dust collecting channel. After the filter dust cup and the dust collecting cup are installed on the body, the dust port of the filter dust cup tangentially corresponds to one end opening of the dust collecting channel, and the dust port of the dust collecting cup tangentially corresponds to the other end opening of the dust collecting channel, so that the filter dust cup and the dust collecting cup are tangentially arranged with the dust collecting channel.

[0010] Furthermore, the filter element assembly can be detachably installed in the isolation chamber of the cyclone shield. The filter element assembly includes a filter element and a filter element connecting base. The filter element connecting base is rotatably engaged and installed at the bottom of the cyclone shield. The exhaust outlet is through-set on the filter element connecting base.

[0011] Furthermore, a plurality of rotating buckles are arranged on the outer circumference of the filter element connecting base; a filter screen is arranged on the outer sleeve of the filter element; and the filter element is a HEPA filter.

[0012] Furthermore, a second connecting seat is provided in the main body, and an exhaust channel and an air inlet channel are respectively provided on the second connecting seat, and the air inlet channel is connected to the roller brush assembly of the main body; the roller brush assembly is rotatably mounted on the roller brush seat of the main body, and the roller brush seat is provided with an air inlet channel connected to the air inlet channel; an exhaust motor connected to the exhaust outlet and a roller brush motor connected to the roller brush assembly are provided in the main body.

[0013] Furthermore, a filter cartridge seat for connecting the filter cartridge assembly is formed at the bottom of the isolation shield, and the filter cartridge seat as a whole can be detachably installed in the cup body of the filter dust cup; the filter cartridge connecting base is rotatably engaged with the filter cartridge seat through the rotating buckle; the air inlet is arranged at the bottom of the filter cartridge seat, and a cyclone plate is mounted on the outer circumferential surface of the cyclone shield.

[0014] Furthermore, the technical solution also provides a dust collection and filtering method for a double dust cup dust collection device, which is implemented based on the above double dust cup dust collection device and specifically includes the following steps:

[0015] Step S001, start the machine;

[0016] Step S002, dirty air enters the dust filter cup; external dirty air is drawn into the air inlet at the bottom of the dust filter cup;

[0017] Step S003, the dust cup filters the air, and the dust cup collects the dust; the dirty air entering the dust cup is blocked radially by the cyclone shield, and can only rise to the top through the cyclone chamber in the dust cup, and most of the dust enters the dust cup through the dust collection channel of the body after cyclone separation, and the remaining mixed dust air enters the filter element assembly in the cyclone shield through the filter inlet at the upper end of the cyclone shield for filtration;

[0018] Step S004, the air is discharged after being filtered; the air filtered by the filter element assembly enters the exhaust outlet of the filter dust cup, and is discharged to the outside of the body through the exhaust channel in the body;

[0019] Step S005, repeating steps S002-S004; performing circulating exhaust filtration;

[0020] Step S006, shut down and stop working.

[0021] Among them, in the step S003, the filter dust cup and the dust collecting cup are independently arranged, and the two are connected through the dust collecting channel of the main body; the outer circumferential surface of the cyclone shield and the inner wall of the filter dust cup form a cyclone chamber of the filter dust cup, and the filter element assembly and the cyclone chamber are radially isolated by the cyclone shield; in the step S003, the dirty air after the cyclone rises is preliminarily filtered by the primary filter element at the filter inlet and then enters the filter element assembly for multi-stage filtration.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1) Two independent filter dust cups and dust collection cups are set on the main body. The dust collection cups can be removed separately to dump the dust, which is simple and easy to clean;

[0025] 2) The independent filter dust cup and dust collection cup are connected through a dust collection channel. The dust collection channel is arranged on the main body and is tangential to the filter dust cup and the dust collection cup, respectively, so that most of the dust after the cyclone rises can enter the dust collection channel and the dust collection cup along the tangential direction, and the dust collection effect is good;

[0026] 3) A cyclone shield is provided in the filter dust cup extending in the axial direction. The cyclone shield radially isolates the filter element assembly and the cyclone chamber, so that the dirty air entering the cyclone chamber is all cyclone-raised. After the dust cyclone separation is completed, the remaining mixed dust air can only enter the filter element assembly and the exhaust outlet in sequence through the filter inlet;

[0027] 4) Preliminary filtration is performed at the filter inlet through the primary filter sponge; the filter dust cup adopts the bottom air intake and bottom exhaust method, and the structure is reasonably set.

[0028] 5) The dust suction and filtering method of the present invention is easy to clean and can effectively reduce the filtering pressure of the filter element assembly, without the need to frequently clean the filter element assembly in the filter dust cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 An exploded view of the present invention;

[0030] Figure 2 A perspective view of the present invention;

[0031] Figure 3 It is a structural schematic diagram of the present invention;

[0032] Figure 4 For the present invention Figure 3 Sectional view of middle II;

[0033] Figure 5 For the present invention Figure 4 Sectional view of II-II;

[0034] Figure 6 A three-dimensional diagram of the dust filter cup of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the dust filter cup of the present invention;

[0036] Figure 8 A three-dimensional diagram of the connecting seat and the roller brush assembly of the present invention;

[0037] Fig. 9 An exploded view of the connecting seat and the roller brush assembly of the present invention;

[0038] Fig.10 This is a three-dimensional diagram of the main body of the present invention without the upper shell;

[0039] Fig.11 is a bottom perspective view of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the filter element assembly of the present invention;

[0041] Fig.13 An exploded view of the filter element assembly of the present invention;

[0042] Fig.14 A three-dimensional diagram of the isolation shield and the cyclone plate of the present invention;

[0043] Fig.15 is a three-dimensional diagram of the cup body of the present invention;

[0044] Fig.16 It is a schematic flow chart of the dust collection and filtering method of the present invention;

[0045] Among them: 1 is the main body, 2 is the filter dust cup, 3 is the dust collecting cup, 4 is the dust collecting channel, 5 is the air inlet, 6 is the exhaust outlet, 7 is the cyclone shield, 8 is the filter element assembly, 9 is the cyclone chamber, 10 is the filter inlet, 11 is the first connecting seat, 12 is the primary filter element, 13 is the isolation chamber, 14 is the filter element, 15 is the filter element connecting base, 16 is the rotating buckle, 17 is the filter screen, 18 is the second connecting seat, 19 is the exhaust channel 19, 20 is the air inlet channel, 21 is the roller brush assembly, 22 is the roller brush seat, 23 is the air inlet channel, 24 is the filter element seat, 25 is the cyclone plate, 26 is the cup body, 27 is the dust port, 28 is the exhaust motor, and 29 is the roller brush motor. Implementation

[0046] See also Figures 1 to 16The present invention provides a double dust cup dust suction device and a dust suction and filtering method thereof, wherein the double dust cup dust suction device comprises a main body 1, on which are detachably provided with a filter dust cup 2 and a dust collecting dust cup 3 which are independent of each other, and the upper ends of the filter dust cup 2 and the dust collecting dust cup 3 are connected through a dust collecting channel 4; the filter dust cup 2 is provided with an air inlet 5 and an exhaust outlet 6; a cyclone shield 7 is provided in the filter dust cup 2 along the axial direction, and a filter element assembly 8 is detachably installed in the cyclone shield 7, and a cyclone cavity 9 is formed between the outer wall of the cyclone shield 7 and the inner wall of the filter dust cup 2, and the cyclone shield 7 radially isolates the filter element assembly 8 and the cyclone cavity 9; a filter inlet 10 is formed at the upper end of the cyclone shield 7, and external dirty air enters the cyclone cavity 9 through the air inlet 5, and enters the filter element assembly 8 and the exhaust outlet 6 in turn through the filter inlet 10.

[0047] The two dust cups of this embodiment are independently arranged. The external dirty air first enters the filter dust cup 2, and most of the dust enters the dust cup 3 through the dust collection channel 4. During the daily maintenance process, the dust cup 3 can be removed separately to dump and clean the dust, and the steps are simple;

[0048] In this embodiment, the cyclone shield 7 is provided to separate the filter element assembly 8 and the cyclone chamber 9 in the radial direction, so that the external dirty air will not be directly sucked into the filter element assembly 8 and the exhaust outlet 6 when entering the air inlet 5, but can only be cyclone-raised through the cyclone chamber 9. After rising to the top position, most of the dust (especially large dust particles) will enter the dust collection channel 4 through the dust collection channel 4, and the air to be filtered can only enter the filter element assembly 8 through the filter inlet 10 at the upper end of the cyclone shield 7 for filtration;

[0049] Among them, see Figure 4 , Figure 7 and Fig.14 A primary filter element 12 is also installed at the filter inlet 10. The filter is first filtered by the primary filter element 12 and then enters the filter element assembly 8 for filtration; the primary filter element 12 can be a filter sponge.

[0050] See also Figure 1-Figure 3 The main body 1 is provided with a first connecting seat 11, and the first connecting seat 11 is provided with a dust collecting channel 4, and the dust collecting channel 4 is tangentially arranged with the filter dust cup 2 and the dust collecting cup 3 respectively; in this embodiment, it is tangentially arranged with the inner walls of the two, which has the advantage of facilitating most of the dust after the cyclone rises to enter the dust collecting channel 4 and the dust collecting cup 3 along the tangential direction.

[0051] See also Figure 3 , Figure 6 , Figure 7 and Fig.10, the filter dust cup 2 and the dust collecting dust cup 3 respectively include a cup body 26 and a dust port 27 arranged at the upper end of the cup body 26, and the dust port 27 is connected to the dust collecting channel 4; in this embodiment, the cup body 26 structure of the filter dust cup 2 and the dust collecting dust cup 3 is the same, and the difference is that the filter dust cup 2 is installed with a filter element assembly 8 and a cyclone shield 7 and other structures. After the filter dust cup 2 and the dust collecting dust cup 3 are installed on the body 1, the dust port 27 of the filter dust cup 2 opens tangentially to one end of the dust collecting channel 4, and the dust port 27 of the dust collecting dust cup 3 opens tangentially to the other end of the dust collecting channel 4, so that the filter dust cup 2 and the dust collecting dust cup 3 are arranged tangentially to the dust collecting channel 4.

[0052] See also Figure 6 , Figure 7 , Fig.12 , Fig.13 The filter element assembly 8 is detachably installed in the isolation chamber 13 of the isolation shield 7. The filter element assembly 8 includes a filter element 14 and a filter element connecting base 15. The filter element connecting base 15 is rotatably engaged and installed at the bottom of the cyclone shield 7. The exhaust outlet 6 is through-set on the filter element connecting base 15. The detachable connection of the filter element assembly 8 is achieved through rotational engagement and rotational disassembly.

[0053] See also Fig.12 and Fig.13 A plurality of rotating buckles 16 are arranged on the outer circumference of the filter element connecting base 15; a filter screen 17 is mounted on the outer surface of the filter element 14; in this embodiment, the filter element 14 is a HEPA filter screen, and the filter screen 17 is a metal filter screen, which is installed on the filter element connecting base 15 through a filter screen bracket.

[0054] See also Figure 8-Figure 10 A second connecting seat 18 is provided in the main body 1, and the second connecting seat 18 is used to form an air inlet and air outlet channel, which is used to guide the air flow into the filter dust cup 2 and discharge the filtered air through the exhaust motor 28 in the main body 1; the second connecting seat 18 is respectively provided with an exhaust channel 19 and an air inlet channel 20, and the air inlet channel 20 is connected to the roller brush assembly 21 of the main body 1; the roller brush assembly 21 is rotatably mounted on the roller brush seat 22 of the main body 1, and the roller brush seat 22 is provided with an air inlet channel 23 connected to the air inlet channel 20; an exhaust motor 28 connected to the exhaust outlet 6 and a roller brush motor 29 connected to the roller brush assembly 21 are provided in the main body 1. In this embodiment, the filter dust cup 2 and the dust collecting cup 3 are respectively detachably inserted into the mounting grooves of the main body 1, and the mounting grooves of the filter dust cup 2 of the main body 1 are provided with avoidance holes corresponding to the exhaust channel 19 and the air inlet channel 20, so that air can enter the air inlet 5 of the filter dust cup 2 through the air inlet channel 20, and the filtered air can enter the exhaust channel 19 through the exhaust outlet 6.

[0055] See also Figure 7A filter element seat 24 for connecting the filter element assembly 8 is formed at the bottom of the cyclone shield 7, and the filter element connecting base 15 is rotatably engaged on the filter element seat 24 through a rotating buckle 16, so as to realize the detachable connection of the filter element assembly 8, which belongs to a more commonly used detachable structure; the filter element seat 24 is detachably installed in the cup body 26 of the filter dust cup 2 as a whole, so as to facilitate cleaning the inside of the cup body 26 or replacing the primary filter element 12; the air inlet 5 is arranged at the bottom of the filter element seat 24, and a cyclone plate 25 is mounted on the outer circumferential surface of the cyclone shield 7, and the air inlet 5 is arranged below the cyclone plate 25, and the dirty air enters the filter dust cup 2 through the air inlet 5 and rises through the cyclone plate 25.

[0056] The present embodiment provides two independent filter dust cups and dust collecting cups, so that the dust collecting cup can be removed separately to dump the dust, the steps are simple and the cleaning operation is convenient; the filter dust cup and the dust collecting cup are connected through a tangentially arranged dust collecting channel, so that most of the dust after the cyclone rises enters the dust collecting channel and the dust collecting cup along the tangential direction, and the dust collecting effect is good; the filter element assembly and the cyclone chamber are radially isolated by the isolation shield in the filter dust cup, so that after the dirty air is completely cycloned and rises in the cyclone chamber, most of the dust will enter the dust collecting cup, and the remaining dust mixed air can only enter the filter element assembly and the exhaust outlet in turn through the filter inlet; preliminary filtration is carried out at the filter inlet through the primary filter sponge; the dust suction and filtration method of the present invention can effectively reduce the filtration pressure of the filter element assembly, extend the service life of the filter element filter, and there is no need to frequently clean the filter element assembly in the filter dust cup.

[0057] See also Fig.16 This embodiment also provides a dust collection and filtering method for a double dust cup dust collection device, which is implemented based on the above double dust cup dust collection device and specifically includes the following steps:

[0058] Step S001, start the machine; the air extraction motor 28 and the roller brush motor 29 are started;

[0059] Step S002, dirty air enters the dust filter cup; external dirty air is drawn into the air inlet 5 at the bottom of the dust filter cup 2;

[0060] Step S003, the dust cup filters the air, and the dust cup collects the dust; the dirty air entering the dust cup 2 is blocked radially by the cyclone shield 7, and can only rise to the top through the cyclone chamber 9 in the dust cup 2, and most of the dust enters the dust cup 3 through the dust collection channel 4 of the body 1, and the remaining air enters the filter element assembly 8 in the cyclone shield 7 through the filter inlet 10 at the upper end of the cyclone shield 7 for filtration;

[0061] Step S004, the air is discharged after being filtered; the air filtered by the filter element assembly 8 enters the exhaust outlet 6 of the filter dust cup 2, and is discharged to the outside of the body 1 through the exhaust channel 19 in the body 1;

[0062] Step S005, repeating steps S002-S004; performing circulating exhaust filtration;

[0063] Step S006, shut down and stop working.

[0064] Among them, in step S003, the filter dust cup 2 and the dust collecting cup 3 are independently arranged, and the two are connected through the dust collecting channel 4 of the main body 1; the outer circumferential surface of the cyclone shield 7 and the inner wall of the filter dust cup 2 form a cyclone chamber 9 of the filter dust cup 2, and the cyclone rises through the cyclone plate 25, and the filter element assembly 8 and the cyclone chamber 9 are radially isolated by the cyclone shield 7; in step S003, the dirty air after the cyclone rises is preliminarily filtered by the primary filter element 12 at the filter inlet 10 and then enters the filter element assembly 8 for filtration.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A double dust cup vacuum cleaner, comprising a body (1), characterized in that: The body (1) is detachably provided with a filter dust cup (2) and a dust collecting cup (3) which are independent of each other; the filter dust cup (2) and the upper ends of the dust collecting cup (3) are connected through a dust collecting channel (4); the filter dust cup (2) is provided with an air inlet (5) and an air exhaust outlet (6); a cyclone shield (7) is provided in the filter dust cup (2) along the axial direction; a filter element assembly (8) is detachably installed in the cyclone shield (7); a cyclone chamber (9) is formed between the outer wall of the cyclone shield (7) and the inner wall of the filter dust cup (2); the cyclone shield (7) radially isolates the filter element assembly (8) and the cyclone chamber (9); a filter inlet (10) is formed at the upper end of the cyclone shield (7); external dirty air enters the cyclone chamber (9) through the air inlet (5), and enters the filter element assembly (8) and the air exhaust outlet (6) in sequence through the filter inlet (10); The body (1) is provided with a first connecting seat (11), the first connecting seat (11) is provided with the dust collecting channel (4), and the dust collecting channel (4) is respectively arranged tangentially to the filter dust cup (2) and the dust collecting cup (3); A primary filter element (12) is installed at the filter inlet (10); The filter element assembly (8) is detachably mounted in the isolation chamber (13) of the cyclone shield (7), the filter element assembly (8) comprises a filter element (14) and a filter element connecting base (15), the filter element connecting base (15) is rotatably engaged and mounted on the bottom of the cyclone shield (7), and the air exhaust outlet (6) is arranged through the filter element connecting base (15); The outer circumference of the filter element connection base (15) is provided with a plurality of rotating buckles (16); the filter element (14) is sheathed with a filter screen (17); the filter element (14) is a Hypa filter; The body (1) is provided with a second connecting seat (18), and the second connecting seat (18) is provided with an air extraction channel (19) and an air intake channel (20), respectively, and the air intake channel (20) is connected to a roller brush assembly (21) of the body (1); the roller brush assembly (21) is rotatably mounted on a roller brush seat (22) of the body (1), and the roller brush seat (22) is provided with an air intake port (23) connected to the air intake channel (20); the body (1) is provided with an air extraction motor (28) connected to the air extraction outlet (6) and a roller brush motor (29) connected to the roller brush assembly (21); A filter element seat (24) for connecting the filter element assembly (8) is formed at the bottom of the cyclone shield (7), the air inlet (5) is arranged at the bottom of the filter element seat (24), and a cyclone plate (25) is mounted on the outer circumferential surface of the cyclone shield (7); The filtering dust cup (2) and the dust collecting dust cup (3) respectively comprise a cup body (26) and a dust port (27) arranged at the upper end of the cup body (26), and the dust port (27) is connected to the dust collecting channel (4).

2. A dust collection and filtering method for a double dust cup dust collection device, based on the double dust cup dust collection device of claim 1, comprising the following steps: step S001, start the machine; step S002, dirty air enters the filter dust cup; external dirty air is drawn into the air inlet (5) at the bottom of the filter dust cup (2); step S003, the filter dust cup filters the air, and the dust collecting cup collects the dust; the dirty air entering the filter dust cup (2) is radially blocked by the cyclone shield (7), and can only rise to the top through the cyclone chamber (9) in the filter dust cup (2), and the cyclone separation causes most of the dust to pass through the body (1 ) enters the dust collecting cup (3) through the dust collecting channel (4), and the remaining mixed dust air enters the filter element assembly (8) in the cyclone shield (7) through the filter inlet (10) at the upper end of the cyclone shield (7) for filtration; step S004, the air is discharged after filtration; the air filtered by the filter element assembly (8) enters the exhaust outlet (6) of the filter dust cup (2), and is discharged to the outside of the main body (1) through the exhaust channel (19) in the main body (1); step S005, repeat steps S002-S004; perform cyclic exhaust filtration; step S006, shut down and stop working.

3. A dust collection and filtering method for a double dust cup dust collection device as claimed in claim 2, characterized in that: In the step S003, the filter dust cup (2) and the dust collecting cup (3) are independently arranged, and the two are connected through the dust collecting channel (4) of the main body (1); the outer circumferential surface of the cyclone shield (7) and the inner wall of the filter dust cup (2) form a cyclone chamber (9) of the filter dust cup (2), and the filter element assembly (8) and the cyclone chamber (9) are radially isolated by the cyclone shield (7); in the step S003, the dirty air after the cyclone rises is initially filtered by the primary filter element (12) at the filter inlet (10) and then enters the filter element assembly (8) for multi-stage filtration.

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