Dust collector with high filtering performance

Abstract

The utility model discloses a dust collector with higher filtering performance, which comprises a main body, an air outlet end is arranged at one end of the main body, a motor bin communicated with the air outlet end is arranged in the main body, a motor is detachably connected in the motor bin, a dust cup is arranged at the other end of the main body, and one end of the dust cup is detachably connected with the main body and is respectively provided with an HEPA and a filter cartridge. The HEPA is located in the body and detachably connected with the dust cup, the other end of the dust cup is connected with an air inlet pipe, a cyclone cylinder is arranged in the dust cup, a spiral cyclone channel is arranged in the cyclone cylinder, one end of the cyclone cylinder is communicated with the air inlet pipe through one end of the cyclone channel, and the edge of the cyclone cylinder extends outwards to form an umbrella-shaped pressing ring. The center of the other end of the cyclone cylinder is detachably connected with one end of the filter cylinder, the other end of the cyclone channel is located at the other end of the cyclone cylinder and located on the outer side of the filter cylinder, and the other end of the filter cylinder is communicated with the air inlet end of the motor through the HEPA. The dust collector has the beneficial effects that the noise is reduced, and the purpose of improving the dust collection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to vacuum cleaners, in particular to a vacuum cleaner with higher filtering performance. Background Art

[0002] Vacuum cleaners can be divided into vertical, horizontal and portable types according to their structure. The working principle of a vacuum cleaner is to use a motor (with a suction structure) to suck air or use a motor to drive the impeller to rotate at high speed, generate negative air pressure in a sealed shell, and absorb dust and garbage.

[0003] Dust cup filtration separates garbage and gas through vacuum airflow generated by high-speed rotation of the motor, and then purifies the air through HEPA and other filter materials to avoid secondary pollution. The advantage is that the dust bag does not need to be replaced frequently; the disadvantage is that it needs to be cleaned after vacuuming. Dust cup filtration is the main filtration method of vacuum cleaners, and most vacuum cleaners use dust cup filtration.

[0004] The Chinese patent number is CN212591890U, and the authorization announcement date is February 26, 2021. It discloses a vacuum cleaner with vibration reduction and high filtering performance, including a dust cup, a motor assembly and a handle assembly. The dust cup is provided with a filter screen cover, and the inner bottom of the dust cup is provided with an air inlet pipe. The bottom of the dust cup and one end of the air inlet pipe are connected to the air inlet. A dust shield ring is provided on the other end of the air inlet pipe. The air inlet pipe is sealed and connected to the lower end of the filter screen cover through the dust shield ring. The upper end of the filter screen cover is sealed and connected to the motor assembly. The handle assembly is installed on the motor assembly. The filter screen cover includes an air inlet section, a filter section and an exhaust section. One end of the air inlet section is sealed and connected to the air inlet pipe through a dust shield ring. The other end of the air inlet section is connected to the lower end of the filter section. The upper end of the filter section is connected to the exhaust section. The lower end of the filter section is provided with an umbrella-shaped dust suppression ring, and the umbrella-shaped dust suppression ring is oriented in the direction of the air inlet section. The filter section is provided with a plurality of filter mesh holes, an air outlet is provided on the side of the filter section, an air duct is provided inside the filter section, the air duct is in an L-shape, one end of the air duct is connected to the air inlet section, and the other end of the air duct is connected to the air outlet, and the turning point of the air duct adopts an arc transition structure.

[0005] In the above patent, when working, the airflow enters the air inlet section of the filter screen, enters the air duct along the air inlet section, and is discharged from the air outlet of the filter section. Since a dust shield is provided at the air outlet, the dust shield is pushed open by the airflow, and the airflow is guided by the dust shield, so that the airflow is tangential to the inner wall of the dust cup, so the airflow always moves in a circular motion inside the dust cup. Therefore, it can be seen that the airflow in the above patent passes through the L-shaped air duct and is guided by the dust shield at the air outlet, forcing the airflow to move in a circular motion along the tangential direction of the inner wall of the dust cup. Since the airflow is subject to greater resistance, it is easy to cause problems such as loud noise and poor dust collection effect of the dust cup. Utility Model Content

[0006] The utility model aims to overcome the disadvantage of poor dust collection effect of vacuum cleaners in the prior art and provides a vacuum cleaner with high filtering performance which is beneficial to improving the dust collection effect.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A vacuum cleaner with high filtering performance, which comprises a main body, one end of the main body is an air outlet end, a motor compartment connected to the air outlet end is provided in the main body, a motor is detachably connected in the motor compartment, a dust cup is provided at the other end of the main body, one end of the dust cup is detachably connected to the main body and is respectively provided with a HEPA and a filter cartridge, the HEPA is located in the main body and detachably connected to the dust cup, the other end of the dust cup is connected to an air inlet pipe, a cyclone barrel is provided in the dust cup, a spiral cyclone channel is provided in the cyclone barrel, one end of the cyclone barrel is connected to the air inlet pipe through one end of the cyclone channel and an umbrella-shaped pressure ring extends outward from its edge, the other end center of the cyclone barrel is detachably connected to one end of the filter cartridge, the other end of the cyclone channel is located on the other end of the cyclone barrel and on the outside of the filter cartridge, and the other end of the filter cartridge is connected to the air inlet end of the motor through the HEPA.

[0009] One end of the main body is the air outlet end, and a motor compartment connected to the air outlet end is provided in the main body, and a motor is detachably connected in the motor compartment, and a dust cup is provided at the other end of the main body, and one end of the dust cup is detachably connected to the main body and is respectively provided with a HEPA and a filter cartridge, the HEPA is located in the main body and detachably connected to the dust cup, and the other end of the dust cup is connected to an air inlet pipe, and a cyclone barrel is provided in the dust cup, and a spiral cyclone channel is provided in the cyclone barrel, one end of the cyclone barrel is connected to the air inlet pipe through one end of the cyclone channel and an umbrella-shaped pressure ring extends outward from its edge, the center of the other end of the cyclone barrel is detachably connected to one end of the filter cartridge, the other end of the cyclone channel is located on the other end of the cyclone barrel and on the outside of the filter cartridge, and the other end of the filter cartridge is connected to the air inlet end of the motor through the HEPA. During operation, under the suction generated by the motor, the air flow enters one end of the cyclone channel from the air inlet pipe, and enters the dust cup from the other end of the cyclone channel, and then is filtered by the filter cartridge to collect the dust in the dust cup, the filtered air flow enters the filter cartridge, and finally is filtered again by the HEPA and discharged from the air outlet; in the above dust collection process, since the cyclone channel is spiral, it plays a good guiding role for the air flow to make a circular motion along the side wall of the dust cup, and under the action of the umbrella-shaped pressure ring, the dust gathers to the bottom of the dust cup, while reducing the air flow resistance, which is beneficial to reducing noise, and is beneficial for the dust to smoothly enter the dust cup under the action of the air flow, thereby achieving the purpose of improving the dust collection effect.

[0010] Preferably, the dust cup comprises a cup body, a filter frame and a bottom cover, one end of the cup body is an open end, the cup body is detachably connected to the main body through the open end, the filter frame is located in the open end and is sealed and detachably connected to the open end, one side of the filter frame is located in the cup body, and the other corresponding side of the filter frame is located outside the cup body, the center of the filter frame is provided with a through hole one that communicates with the interior of the filter cartridge, the other end of the filter cartridge is fixedly connected to the side of the filter frame located inside the cup body, the HEPA is detachably connected to the side of the filter frame located outside the cup body, the other end of the cup body is closed and a through hole two that communicates with the air inlet pipe is provided in the center thereof, a dust shield is connected to the through hole two, the bottom cover is detachably connected to the other end of the cup body, and the air inlet pipe is fixedly connected to the center of the bottom cover and is connected to the through hole two. Since a dust shield is provided in through hole two, the dust shield is pushed open by the air flow, and the air flow in the air inlet pipe enters one end of the cyclone channel after passing through the dust shield at through hole two, and enters the cup body from the other end of the cyclone channel, and then is filtered by the filter cartridge so that the dust is collected in the cup body, and the filtered air flow enters the filter cartridge, and finally enters the HEPA through through hole one and is filtered again before being discharged from the air outlet; the cup body is detachably connected to the main body through the opening end, so that the dust in the cup body can be cleaned easily.

[0011] Preferably, one end of the filter cartridge is sealed and a positioning tube is passed through the center of the filter cartridge, the positioning tube is fixedly connected to the filter cartridge, one end of the positioning tube is located in the filter cartridge, and the other end of the positioning tube is located outside the filter cartridge, a mounting ring is protruding on the inner wall of the positioning tube, the mounting ring and the end of the positioning tube located in the filter cartridge together form a countersunk hole, a bolt is provided in the countersunk hole, a plug-in column is fixed on the cyclone barrel, the mounting ring and the end of the positioning tube located outside the filter cartridge together form a positioning groove matching the plug-in column, a threaded groove matching the bolt is provided in the plug-in column, the cyclone barrel is detachably connected to the filter cartridge by matching the plug-in column with the threaded groove, a sealing groove 1 is provided on the outer side of the plug-in column, a sealing ring 1 is provided in the sealing groove 1, and the end of the positioning tube located outside the filter cartridge is sealed and connected to the cyclone barrel through the sealing ring 1. The plug-in column matches the positioning tube, which is beneficial to the limiting of the filter cartridge and the cyclone barrel during assembly, and then fixed by bolts, which makes installation and disassembly convenient and quick; the connection between the filter cartridge and the cyclone barrel is sealed by a sealing ring, which is beneficial for the airflow to flow completely through the cyclone channel and improve the dust collection efficiency of the dust cup.

[0012] Preferably, a mounting groove matching the HEPA is provided on one side of the filter frame outside the cup body, and the HEPA is detachably connected to the mounting groove. The HEPA is embedded in the filter frame through the mounting groove, which is conducive to reducing the volume of the whole machine.

[0013] Preferably, a connecting pipe is provided at the center of the other end of the cup body, the connecting pipe is located inside the cup body, the air inlet pipe is located outside the cup body, one end of the connecting pipe is fixedly connected to the cup body and communicated with the air inlet pipe through the second through hole, and the other end of the connecting pipe is detachably connected to the cyclone barrel and communicated with one end of the cyclone channel. The connecting pipe enables the airflow to directly enter the cyclone barrel completely after passing through the air inlet pipe and the second through hole in sequence, thereby ensuring a better filtering and separation effect.

[0014] Preferably, one end of the cyclone barrel is provided with a second sealing groove of an annular structure, one end of the cyclone channel is located in the annular structure of the second sealing groove, a second sealing ring is provided in the second sealing groove, and the connecting pipe is sealed and connected to the cyclone barrel through the second sealing ring. The connecting pipe and the cyclone barrel are sealed and connected through the second sealing ring to ensure air tightness and further improve the filtering and separation effect of the airflow.

[0015] Preferably, the edge of the dust shield is fixedly connected to the side wall of the second through hole, one side of the dust shield is close to the air inlet pipe, and the other side of the dust shield is far away from the air inlet pipe. The dust shield is convex from the side close to the air inlet pipe to the side far away from the air inlet pipe to form a spherical structure, and a cross intersection is provided on the dust shield to be divided into four pieces. The structural design of the dust shield can adjust the airflow rate under the motor speed regulation, and can also block the dust in the cup body after vacuuming.

[0016] Preferably, a handle with a quadrilateral structure is detachably connected to the outer wall of the main body, one side of the handle is detachably connected to the main body and is provided with a button, the button is electrically connected to the motor, and the other side of the handle corresponding to the handle is provided with a slot, the slot is located outside the quadrilateral structure of the handle. The handle is convenient for the operator to hold and operate; the slot is convenient for the main body to be stored and placed, which is quick and convenient.

[0017] Preferably, the button is located at one end of the handle, one end of the handle is detachably connected to the main body, and the other end of the handle corresponds to the cup body and there is a gap between the handle and the outer wall of the cup body. The button position design is convenient for the operator to operate while holding the handle, which is convenient and quick; the gap facilitates the installation and removal of the cup body.

[0018] Preferably, the inner side wall of the open end of the cup body is provided with a plurality of L-shaped locking grooves evenly distributed along the circumference thereof, one end of the locking groove is located on the end face of the open end of the cup body, an arc-shaped protrusion is fixed on the side wall of the other end of the locking groove, and the main body is provided with a plurality of locking blocks that match the locking grooves one by one, one side of the locking block is located on the end face of the main body, and the other side of the locking block corresponding to the protrusion is provided. When the cup body is installed on the main body, the operator inserts one end of the locking groove on the cup body located on the end face of the open end of the cup body into the corresponding locking block, and then rotates the cup body at a certain angle so that the protrusion matches the groove, thereby achieving a relatively firm positioning and locking effect on the cup body, with a simple structure and convenient and quick installation and disassembly.

[0019] The beneficial effects of the utility model are: it is convenient for dust to gather at the bottom of the dust cup, while reducing the airflow resistance, which is beneficial to reducing noise, and is beneficial for dust to smoothly enter the dust cup under the action of the airflow, thereby achieving the purpose of improving the dust collection effect; it is convenient to clean the dust in the cup body; the installation and disassembly are convenient and quick; the installation method of HEPA embedded in the filter frame through the installation groove is beneficial to reducing the volume of the whole machine; it is beneficial to ensure a better filtering and separation effect; the structural design of the dust shield, on the one hand, can adjust the airflow flow rate under the motor speed adjustment, on the other hand, after the vacuuming is completed, it can block the dust in the cup body; it has a relatively firm positioning and locking effect on the cup body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 and Figure 3 It is an exploded view of the utility model;

[0022] Figure 4 yes Figure 3 Sectional view of AA in the middle;

[0023] Figure 5 yes Figure 4 A magnified view of the structure at E in the middle;

[0024] Figure 6 yes Figure 4 A magnified view of the structure at D in the middle;

[0025] Figure 7 yes Figure 2 A magnified view of the structure at B in the middle;

[0026] Figure 8 yes Figure 2 Enlarged view of the structure at C in the middle.

[0027] In the figure: 1. main body, 2. air outlet, 3. motor, 4. dust cup, 5. HEPA, 6. filter cartridge, 7. air inlet pipe, 8. cyclone, 9. cyclone channel, 10. umbrella-shaped pressure ring, 11. cup body, 12. filter frame, 13. bottom cover, 14. through hole 1, 15. through hole 2, 16. dust shield, 17. positioning tube, 18. mounting ring, 19. countersunk hole, 20. plug-in column, 21. positioning groove, 22. thread groove, 23. sealing groove 1, 24. mounting groove, 25. connecting pipe, 26. sealing groove 2, 27. cross intersection, 28. handle, 29. button, 30. slot, 31. gap, 32. lock slot, 33. bump, 34. lock block, 35. groove. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 In the described embodiment, a vacuum cleaner with high filtering performance includes a main body 1, one end of the main body 1 is an air outlet end 2, a motor compartment connected to the air outlet end 2 is provided in the main body 1, a motor 3 is detachably connected in the motor compartment, a dust cup 4 is provided at the other end of the main body 1, one end of the dust cup 4 is detachably connected to the main body 1 and is respectively provided with a HEPA 5 and a filter cartridge 6, the HEPA 5 is located in the main body 1 and is detachably connected to the dust cup 4, the other end of the dust cup 4 is connected to an air inlet pipe 7, a cyclone barrel 8 is provided in the dust cup 4, a spiral cyclone channel 9 is provided in the cyclone barrel 8, one end of the cyclone barrel 8 is connected to the air inlet pipe 7 through one end of the cyclone channel 9 and an umbrella-shaped pressure ring 10 extends outward from its edge, the other end center of the cyclone barrel 8 is detachably connected to one end of the filter cartridge 6, the other end of the cyclone channel 9 is located on the other end of the cyclone barrel 8 and on the outside of the filter cartridge 6, and the other end of the filter cartridge 6 is connected to the air inlet end of the motor 3 through the HEPA 5.

[0030] like Figure 2 , Figure 3and Figure 4 As shown, the dust cup 4 includes a cup body 11, a filter frame 12 and a bottom cover 13. One end of the cup body 11 is an open end, and the cup body 11 is detachably connected to the main body 1 through the open end. The filter frame 12 is located in the open end and is sealed and detachably connected to the open end. One side of the filter frame 12 is located in the cup body 11, and the other side of the filter frame 12 corresponding to the filter frame 12 is located outside the cup body 11. The center of the filter frame 12 is provided with a through hole 14 connected to the inside of the filter cartridge 6, and the other end of the filter cartridge 6 is fixedly connected to the side of the filter frame 12 located in the cup body 11. The HEPA 5 is detachably connected to the side of the filter frame 12 located outside the cup body 11. The other end of the cup body 11 is closed and a through hole 2 15 connected to the air inlet pipe 7 is provided in the center thereof. A dust shield 16 is connected to the through hole 2 15. The bottom cover 13 is detachably connected to the other end of the cup body 11, and the air inlet pipe 7 is fixedly connected to the center of the bottom cover 13 and is connected to the through hole 2 15.

[0031] like Figure 4 and Figure 5 As shown, one end of the filter cartridge 6 is sealed and a positioning tube 17 is passed through the center thereof, the positioning tube 17 is fixedly connected to the filter cartridge 6, one end of the positioning tube 17 is located in the filter cartridge 6, and the other end of the positioning tube 17 is located outside the filter cartridge 6. A mounting ring 18 is protruded on the inner wall of the positioning tube 17, the mounting ring 18 and the end of the positioning tube 17 located in the filter cartridge 6 together form a countersunk hole 19, a bolt is arranged in the countersunk hole 19, a plug-in column 20 is fixed on the cyclone barrel 8, the mounting ring 18 and the end of the positioning tube 17 located outside the filter cartridge 6 together form a positioning groove 21 matching the plug-in column 20, a threaded groove 22 matching the bolt is arranged in the plug-in column 20, the cyclone barrel 8 is detachably connected to the filter cartridge 6 by matching the plug-in column 20 with the threaded groove 22, a sealing groove 23 is provided on the outer side of the plug-in column 20, a sealing ring 1 is arranged in the sealing groove 23, and the end of the positioning tube 17 located outside the filter cartridge 6 is sealed and connected to the cyclone barrel 8 through a sealing ring 1.

[0032] like Figure 2 and Figure 4 As shown, a mounting groove 24 matching with the HEPA 5 is provided on one side of the filter frame 12 outside the cup body 11 , and the HEPA 5 is detachably connected to the mounting groove 24 .

[0033] like Figure 4 As shown, a connecting pipe 25 is provided at the center of the other end of the cup body 11, the connecting pipe 25 is located inside the cup body 11, and the air inlet pipe 7 is located outside the cup body 11. One end of the connecting pipe 25 is fixedly connected to the cup body 11 and communicated with the air inlet pipe 7 through the second through hole 15, and the other end of the connecting pipe 25 is detachably connected to the cyclone barrel 8 and communicated with one end of the cyclone channel 9. A sealing groove 26 of an annular structure is provided at one end of the cyclone barrel 8, and one end of the cyclone channel 9 is located in the annular structure of the sealing groove 26, and a sealing ring 2 is provided in the sealing groove 26, and the connecting pipe 25 is sealed and connected to the cyclone barrel 8 through the sealing ring 2.

[0034] like Figure 4 and Figure 6 As shown, the edge of the dust shield 16 is fixedly connected to the side wall of the second through hole 15, one side of the dust shield 16 is close to the air inlet pipe 7, and the other corresponding side of the dust shield 16 is far away from the air inlet pipe 7. The dust shield 16 protrudes from the side close to the air inlet pipe 7 to the side far away from the air inlet pipe 7 to form a spherical structure. A cross intersection 27 is opened on the dust shield 16 and it is divided into four parts.

[0035] like Figure 1 As shown, a handle 28 of a quadrilateral structure is detachably connected to the outer wall of the main body 1, one side of the handle 28 is detachably connected to the main body 1 and is provided with a button 29, the button 29 is electrically connected to the motor 3, and the other side of the handle 28 corresponding to the handle 28 is provided with a slot 30, and the slot 30 is located outside the quadrilateral structure of the handle 28. The button 29 is located at one end of the handle 28, one end of the handle 28 is detachably connected to the main body 1, and the other end of the handle 28 corresponds to the cup body 11 and there is a gap 31 between the outer wall of the cup body 11.

[0036] like Figure 7 As shown, the inner side wall of the open end of the cup body 11 is provided with a plurality of L-shaped locking grooves 32 evenly distributed along its circumference, one end of the locking groove 32 is located on the end surface of the open end of the cup body 11, and an arc-shaped protrusion 33 is fixed on the side wall of the other end of the locking groove 32, as shown in FIG. Figure 8 As shown, the main body 1 is provided with a plurality of locking blocks 34 that match the locking grooves 32 one by one, one side of the locking block 34 is located on the end surface of the main body 1, and the other side of the locking block 34 corresponding to the locking block 34 is provided with a groove 35 that matches the protrusion 33.

[0037] When the vacuum cleaner (model 2310) is working, under the suction force generated by the motor 3, the air flow enters from the air inlet pipe 7, pushes open the dust shield 16, passes through the through hole 2 15 and the connecting pipe 25 in turn to one end of the cyclone channel 9, and enters the cup body 11 from the other end of the cyclone channel 9; then the dust is collected in the cup body 11 through the filtration of the filter cartridge 6, and the filtered air flow enters the filter cartridge 6, and finally enters the HEPA 5 through the through hole 14 for further filtration before being discharged from the air outlet 2; in the above-mentioned dust collection process, since the cyclone channel 9 is spiral, it plays a good guiding role for the air flow to make a circular motion along the side wall of the cup body 11, and under the action of the umbrella-shaped pressure ring 10, the dust gathers at the bottom of the cup body 11, while reducing the air flow resistance, which is beneficial to reducing noise, and facilitating the dust to smoothly enter the cup body 11 under the action of the air flow, which is beneficial to improving the dust collection effect.

Claims

1. A vacuum cleaner with high filtering performance, characterized in that: The invention comprises a main body (1), one end of the main body (1) being an air outlet end (2), a motor compartment connected to the air outlet end (2) being provided in the main body (1), a motor (3) being detachably connected in the motor compartment, a dust cup (4) being provided at the other end of the main body (1), one end of the dust cup (4) being detachably connected to the main body (1) and respectively provided with a HEPA (5) and a filter cartridge (6), the HEPA (5) being located in the main body (1) and detachably connected to the dust cup (4), the other end of the dust cup (4) being connected to an air inlet pipe (7), the dust cup (4) A cyclone barrel (8) is provided inside the cyclone barrel (8), wherein a spiral cyclone channel (9) is provided inside the cyclone barrel (8), one end of the cyclone barrel (8) is connected to an air inlet pipe (7) through one end of the cyclone channel (9), and an umbrella-shaped pressure ring (10) is extended outward from the edge thereof, the center of the other end of the cyclone barrel (8) is detachably connected to one end of a filter cartridge (6), the other end of the cyclone channel (9) is located on the other end of the cyclone barrel (8) and on the outside of the filter cartridge (6), and the other end of the filter cartridge (6) is connected to an air inlet end of a motor (3) through a HEPA (5).

2. A vacuum cleaner with high filtering performance according to claim 1, characterized in that: The dust cup (4) comprises a cup body (11), a filter frame (12) and a bottom cover (13); one end of the cup body (11) is an open end; the cup body (11) is detachably connected to the main body (1) via the open end; the filter frame (12) is located in the open end and is detachably connected to the open end in a sealed manner; one side of the filter frame (12) is located in the cup body (11); the other side of the filter frame (12) corresponding to the filter frame (12) is located outside the cup body (11); a through hole (14) communicating with the interior of the filter cartridge (6) is provided at the center of the filter frame (12); The other end of the cylinder (6) is fixedly connected to the side of the filter frame (12) located inside the cup body (11); the HEPA (5) is detachably connected to the side of the filter frame (12) located outside the cup body (11); the other end of the cup body (11) is closed and a second through hole (15) connected to the air inlet pipe (7) is provided at its center; a dust shield (16) is connected to the second through hole (15); the bottom cover (13) is detachably connected to the other end of the cup body (11); the air inlet pipe (7) is fixedly connected to the center of the bottom cover (13) and is connected to the second through hole (15).

3. A vacuum cleaner with high filtering performance according to claim 2, characterized in that: One end of the filter cartridge (6) is sealed and a positioning tube (17) is passed through the center thereof. The positioning tube (17) is fixedly connected to the filter cartridge (6). One end of the positioning tube (17) is located inside the filter cartridge (6) and the other end of the positioning tube (17) is located outside the filter cartridge (6). A mounting ring (18) is protrudingly provided on the inner side wall of the positioning tube (17). The mounting ring (18) and one end of the positioning tube (17) located inside the filter cartridge (6) together form a countersunk hole (19). A bolt is provided in the countersunk hole (19). A plug-in column (20) is fixed to the cyclone cartridge (8). The mounting ring (18) is provided with a screw thread. The mounting ring (18) and one end of the positioning tube (17) located outside the filter cartridge (6) jointly form a positioning groove (21) matching the plug-in column (20); a thread groove (22) matching the bolt is provided inside the plug-in column (20); the cyclone barrel (8) is detachably connected to the filter cartridge (6) by matching the plug-in column (20) with the thread groove (22); a sealing groove (23) is provided on the outer side of the plug-in column (20); a sealing ring (23) is provided inside the sealing groove (23); and one end of the positioning tube (17) located outside the filter cartridge (6) is sealedly connected to the cyclone barrel (8) via the sealing ring (21).

4. A vacuum cleaner with high filtering performance according to claim 2, characterized in that: A mounting groove (24) matching the HEPA (5) is provided on one side of the filter frame (12) located outside the cup body (11), and the HEPA (5) is detachably connected to the mounting groove (24).

5. A vacuum cleaner with high filtering performance according to claim 2, characterized in that: A connecting pipe (25) is provided at the centre of the other end of the cup body (11); the connecting pipe (25) is located inside the cup body (11); the air inlet pipe (7) is located outside the cup body (11); one end of the connecting pipe (25) is fixedly connected to the cup body (11) and communicates with the air inlet pipe (7) via a second through hole (15); the other end of the connecting pipe (25) is detachably connected to the cyclone barrel (8) and communicates with one end of the cyclone channel (9).

6. A vacuum cleaner with high filtering performance according to claim 5, characterized in that: A second sealing groove (26) of a circular ring structure is provided at one end of the cyclone barrel (8), one end of the cyclone passage (9) is located in the circular ring structure of the second sealing groove (26), a second sealing ring is provided in the second sealing groove (26), and the connecting pipe (25) is sealedly connected to the cyclone barrel (8) via the second sealing ring.

7. A vacuum cleaner with high filtering performance according to claim 2, characterized in that: The edge of the dust shield (16) is fixedly connected to the side wall of the second through hole (15); one side of the dust shield (16) is close to the air inlet pipe (7), and the other side of the dust shield (16) is away from the air inlet pipe (7); the dust shield (16) protrudes from the side close to the air inlet pipe (7) to the side away from the air inlet pipe (7) to form a spherical structure; the dust shield (16) is divided into four parts by a cross intersection (27).

8. A vacuum cleaner with high filtering performance according to claim 2, characterized in that: A handle (28) with a quadrilateral structure is detachably connected to the outer side wall of the main body (1); one side of the handle (28) is detachably connected to the main body (1) and is provided with a button (29); the button (29) is electrically connected to the motor (3); and a slot (30) is provided on the other side of the handle (28); the slot (30) is located outside the quadrilateral structure of the handle (28).

9. A vacuum cleaner with high filtering performance according to claim 8, characterized in that: The button (29) is located at one end of the handle (28), one end of the handle (28) is detachably connected to the main body (1), and the other end of the handle (28) corresponds to the cup body (11) and a gap (31) exists between the handle and the outer wall of the cup body (11).

10. A vacuum cleaner with high filtering performance according to claim 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9, characterized in that: The inner side wall of the open end of the cup body (11) is provided with a plurality of L-shaped locking grooves (32) evenly distributed along the circumference thereof, one end of the locking groove (32) is located on the end surface of the open end of the cup body (11), and an arc-shaped protrusion (33) is fixed on the side wall of the other end of the locking groove (32), and the main body (1) is provided with a plurality of locking blocks (34) that match the locking grooves (32) one by one, one side of the locking block (34) is located on the end surface of the main body (1), and the other side of the locking block (34) corresponding to the locking block (34) is provided with a groove (35) that matches the protrusion (33).

Images