Dust-air separation device and vacuum dust collector

Abstract

The utility model discloses a dust-air separation device and a vacuum dust collector, belongs to the technical field of dust collectors, and solves the problem that impurities such as dust, hair and tiny particles are excessively attached to the surface of a stainless steel cylinder due to the guidance of air, so that the dust-air separation effect is poor. And finally, impurities such as dust, hair and tiny particles gradually block holes in the stainless steel cylinder structure. Comprising a mounting shell, a connecting cylinder fixedly connected with the mounting shell, and a mounting cylinder detachably connected and communicated with the mounting shell and the connecting cylinder. When the dust-air separation device works, the driving motor drives the impeller to rotate, and air flows through the ventilation groove, the reduction cylinder and the air outlet groove and enters the stainless steel mesh cylinder and the mounting cylinder through the HEPA filter screen. The motor further drives the connecting disc and other components to rotate, negative pressure is generated, and dust enters the mounting cylinder from the dust collection head and is attached to the stainless steel mesh cylinder. Under the guidance of the external expansion sleeve, dust is moved to one end of the mounting cylinder, and during reverse agitation, the external expansion sleeve and the connecting ring sheet block the dust, so that a good dust collection effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner technology, and in particular to a dust-air separation device and a vacuum cleaner. Background Technology

[0002] Handheld vacuum cleaners are convenient, flexible, and efficient cleaning tools designed for everyday cleaning in homes and offices. They are typically lighter than traditional upright vacuum cleaners, allowing for easy one-handed operation and making them suitable for cleaning furniture, floors, curtains, car interiors, and tight corners. Handheld vacuum cleaners feature a bagless design and a high-efficiency filtration system that effectively removes dust, hair, and fine particles, keeping the air fresh. Overall, handheld vacuum cleaners have become an essential cleaning tool in modern homes due to their efficiency and convenience.

[0003] Current vacuum cleaners use a perforated stainless steel cylinder structure to filter dust, hair, and fine particles. However, due to airflow, these impurities tend to adhere excessively to the surface of the stainless steel cylinder. Eventually, these impurities gradually clog the holes in the stainless steel cylinder structure, causing the vacuum cleaner's suction power to gradually decline after prolonged use.

[0004] Therefore, a dust-gas separation device and a vacuum cleaner are proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dust-gas separation device and a vacuum cleaner.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dust-air separation device includes a mounting shell, a connecting cylinder fixedly connected to the mounting shell, and a mounting cylinder detachably connected to and communicating with the mounting shell and the connecting cylinder. The mounting shell has a venting groove communicating with its interior. The mounting cylinder has an outlet groove communicating with its interior at its end away from the mounting shell. A shrinking cylinder is disposed inside the mounting cylinder. The diameter of the shrinking cylinder is reduced from one end to the other, and the smallest diameter end of the shrinking cylinder is embedded in the outlet groove. A circular connecting frame is sleeved on the outside of the shrinking cylinder. A connecting ring piece sleeved on the outside of the shrinking cylinder is fixedly connected to the end of the connecting frame facing the outlet groove. A stainless steel mesh cylinder is fixedly connected to the outer ring of the connecting frame. A connecting sleeve is rotatably connected to the largest diameter end of the shrinking cylinder. A plurality of guide blocks are fixedly connected to the outer ring of the connecting sleeve. A plurality of open grooves communicating with its inner ring and located in the inner ring of the stainless steel mesh cylinder are opened on the outer ring of the shrinking cylinder. Air flows through the venting groove, the shrinking cylinder, and the outlet groove within the mounting shell.

[0008] Preferably, a drive motor is fixedly connected inside the mounting housing, and an impeller is fixedly connected to the rotor shaft of the drive motor. The rotation of the impeller guides air to flow through the air permeable groove, the shrinkage cylinder, and the air outlet groove.

[0009] Preferably, the rotor shaft of the drive motor is coaxially fixedly connected to a transmission rod, and the end of the transmission rod away from the rotor shaft is fixedly connected to a connecting disc that fits into the inner ring of the connecting sleeve. The connecting disc has several vent holes that penetrate along its thickness direction.

[0010] Preferably, the end of the connecting sleeve away from the drive shaft is provided with a guide head located inside the shrinking cylinder. The guide head is fixedly connected to the end face of the connecting sleeve by a number of spaced connecting blades. The cross-section of the guide head gradually decreases from one end of the connecting blade toward the air outlet groove.

[0011] Preferably, an outer expansion sleeve is fixedly connected to the side of the connecting ring away from the stainless steel mesh cylinder. The outer diameter of the outer expansion sleeve gradually increases from the end connected to the connecting ring, and the minimum outer diameter of the outer expansion sleeve is the same as the outer diameter of the connecting ring and the stainless steel mesh cylinder.

[0012] Preferably, a HEPA filter is embedded in the end of the mounting cylinder facing the mounting shell, and a through hole is provided on the HEPA filter, through which the transmission rod is disposed.

[0013] Preferably, it also includes a handle, which is fixedly connected to the connecting cylinder and the mounting housing.

[0014] This utility model also provides a vacuum cleaner, including the dust-air separation device as described above, and a vacuum head that is detachably connected thereto.

[0015] This utility model has the following beneficial effects:

[0016] When this invention is in operation, the user holds the handle to move the vacuum cleaner. During operation of the dust-air separation device, the drive motor rotates the impeller, and air flows through the air vent, compression cylinder, and air outlet, passing through the HEPA filter into the stainless steel mesh cylinder and mounting cylinder. The motor also drives components such as the connecting disc to rotate, generating negative pressure, causing dust to enter the mounting cylinder from the suction head and adhere to the stainless steel mesh cylinder. Guided by the outer expansion sleeve, the dust moves to one end of the mounting cylinder. When the cylinder is agitated in the opposite direction, the outer expansion sleeve and connecting ring block the dust, ensuring good suction performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the dust-gas separation device in this utility model;

[0019] Figure 2 This is a cross-sectional view of the dust-gas separation device in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 This is a schematic diagram of the vacuum cleaner in this utility model.

[0023] 1. Mounting housing; 2. Ventilation slot; 3. Handle; 4. Connecting cylinder; 5. Mounting cylinder; 6. Drive motor; 7. Impeller; 8. Transmission rod; 9. HEPA filter; 10. Connecting plate; 11. Ventilation hole; 12. Connecting sleeve; 13. Guide block; 14. Connecting blade; 15. Guide head; 16. Shrinkage cylinder; 17. Opening slot; 18. Connecting frame; 19. Stainless steel mesh cylinder; 20. Connecting ring; 21. Outer expansion sleeve; 22. Dust suction head; 23. Air outlet slot. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] A dust-gas separation device, such as Figures 1 to 4As shown, the device includes a handle 3, a mounting shell 1, a connecting cylinder 4 fixedly connected to the mounting shell 1, and a mounting cylinder 5 detachably connected to and communicating with the mounting shell 1 and the connecting cylinder 4. The handle 3 is fixedly connected to the connecting cylinder 4 and the mounting shell 1. The mounting shell 1 has a vent groove 2 communicating with its interior. The mounting cylinder 5 has an air outlet groove 23 communicating with its interior at one end away from the mounting shell 1. A shrinking cylinder 16 is installed inside the mounting cylinder 5. The diameter of the shrinking cylinder 16 decreases from one end to the other, and the smallest diameter end of the shrinking cylinder 16 is embedded in the air outlet groove 23. The outer side of the shrinking cylinder 16... A ring-shaped connecting frame 18 is provided. A connecting ring piece 20, which is sleeved on the outside of the shrinking cylinder 16, is fixedly connected to one end of the connecting frame 18 facing the air outlet groove 23. A stainless steel mesh cylinder 19 is fixedly connected to the outer ring of the connecting frame 18. A connecting sleeve 12 is rotatably connected to the inner end of the shrinking cylinder 16 with the largest diameter. Several guide blocks 13 are fixedly connected to the outer ring of the connecting sleeve 12. Several opening grooves 17, which communicate with the inner ring of the shrinking cylinder 16 and are located in the inner ring of the stainless steel mesh cylinder 19, are opened on the outer ring of the mounting shell 1. Air flows through the self-ventilating groove 2, the shrinking cylinder 16, and the air outlet groove 23.

[0031] A drive motor 6 is fixedly connected inside the housing 1. An impeller 7 is fixedly connected to the rotor shaft of the drive motor 6. The rotation of the impeller 7 guides air to flow from the venting groove 2, the shrinking cylinder 16, and the air outlet groove 23. A transmission rod 8 is fixedly connected to the rotor shaft of the drive motor 6. A connecting disc 10 that fits into the inner ring of the connecting sleeve 12 is fixedly connected to the end of the transmission rod 8 away from the rotor shaft. Several vent holes 11 are opened on the connecting disc 10, which penetrates along its thickness direction.

[0032] A guide head 15 located inside the shrinking cylinder 16 is provided at the end of the connecting sleeve 12 away from the drive shaft. The guide head 15 is fixedly connected to the end face of the connecting sleeve 12 by several spaced connecting blades 14. The cross-section of the guide head 15 gradually decreases from one end of the connecting blades 14 toward the air outlet groove 23. An outer expansion sleeve 21 is fixedly connected to the side of the connecting ring 20 away from the stainless steel mesh cylinder 19. The outer diameter of the outer expansion sleeve 21 gradually increases from the end connected to the connecting ring 20, and the minimum outer diameter of the outer expansion sleeve 21 is the same as the outer diameter of the connecting ring 20 and the stainless steel mesh cylinder 19. A HEPA filter 9 is embedded in the end of the mounting cylinder 5 facing the mounting shell 1. A through hole is opened on the HEPA filter 9, and the drive rod 8 passes through the through hole.

[0033] This utility model also provides a vacuum cleaner, such as Figure 5 As shown, it includes the dust-air separation device as described above, and a dust suction head 22 that is detachably connected thereto.

[0034] When this utility model is in actual operation, the user holds the handle 3 to move the dust-air separation device and the suction head 22, thereby enabling the entire vacuum cleaner to move and work accordingly.

[0035] During the operation of the dust-gas separation device, the drive motor 6 operates, driving the impeller 7 to rotate, thereby guiding air to flow from the permeable groove 2, the compression cylinder 16, and the outlet groove 23. The air also passes through the HEPA filter 9 and flows into the stainless steel mesh cylinder 19, and then into the mounting cylinder 5. Simultaneously, the drive motor 6, through the transmission rod 8, drives the connecting plate 10, connecting sleeve 12, guide block 13, connecting blade 14, and guide head 15 to rotate. This generates air flowing through the compression cylinder 16 and the outlet groove 23, thus ensuring that the mounting housing 1 not only generates negative pressure... The pressure causes dust and other debris to enter the mounting cylinder 5 sequentially from the suction head 22 and the connecting cylinder 4, and then adhere to the surface of the stainless steel mesh cylinder 19. Guided by the internal air, the dust and other debris on the surface of the stainless steel mesh cylinder 19 can be displaced towards the outer expansion sleeve 21. Guided by the outer expansion sleeve 21, the dust and other debris go to the end of the mounting cylinder 5 away from the mounting shell 1. If the air needs to be blown in the opposite direction, it can also be blocked by the outer expansion sleeve 21 and the connecting ring 20 to prevent dust and other debris from re-adhering to the stainless steel mesh cylinder 19, thereby ensuring that the overall vacuum cleaner has a good suction effect.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dust-air separating device, characterized in that The utility model provides an air purifier, including installation shell (1), with installation shell (1) fixed connection's connecting cylinder (4), and with installation shell (1) and connecting cylinder (4) detachable connection and intercommunication's installation cylinder (5), the installation shell (1) is set up with its inside intercommunication's air -permeable groove (2) on, the installation cylinder (5) is set up with its inside intercommunication's air outlet slot (23) at the end away from installation shell (1), be provided with the reduction cylinder (16) in the installation cylinder (5), the pipe diameter of reduction cylinder (16) is reduced from one end to the other end setting, and the pipe diameter minimum end of reduction cylinder (16) is embedded in air outlet slot (23), the outside of reduction cylinder (16) is equipped with the annular connection frame (18), one end towards air outlet slot (23) of connection frame (18) is fixedly connected with the connection ring piece (20) of the sleeve set in the outside of reduction cylinder (16), the outer ring of connection frame (18) is fixedly connected with the stainless steel net cylinder (19), the pipe diameter maximum end of reduction cylinder (16) is rotatably connected with the connecting sleeve (12), the outer ring of connecting sleeve (12) is fixedly connected with a plurality of guide vane (13), the outer ring of reduction cylinder (16) is set up with a plurality of opening slot (17) with its inner ring intercommunication and located the inner ring of stainless steel net cylinder (19), the air of installation shell (1) inside exists from air -permeable groove (2), reduction cylinder (16) and air outlet slot (23) flow.

2. A dust-air separation device according to claim 1, characterized in that The rotor shaft of the driving motor (6) is fixedly connected with an impeller (7), and the rotation of the impeller (7) guides the air to flow from the air-permeable groove (2), the reduction cylinder (16) and the air outlet slot (23).

3. A dust-air separation device according to claim 2, characterized in that The rotor shaft of the driving motor (6) is coaxially fixedly connected with a transmission rod (8), and one end of the transmission rod (8) away from the rotor shaft is fixedly connected with a connecting disc (10) embedded in the inner ring of the connecting sleeve (12).

4. A dust-air separation device according to claim 3, characterized in that The end of the connecting sleeve (12) away from the transmission shaft is provided with a flow guide head (15) located in the reduction cylinder (16), and the flow guide head (15) is fixedly connected with the end face of the connecting sleeve (12) through a plurality of connection blades (14) arranged at intervals.

5. A dust gas separation device according to claim 4, characterised in that One side of the connecting ring piece (20) away from the stainless steel net cylinder (19) is fixedly connected with a set of outer expansion sleeves (21), and the outer diameter of the outer expansion sleeves (21) gradually increases from one end connected with the connecting ring piece (20).

6. A dust gas separation device according to claim 3, wherein The end of the installation cylinder (5) towards the installation shell (1) is embedded with a HEPA filter screen (9), and the HEPA filter screen (9) is provided with a through hole.

7. A dust gas separation device according to claim 1, characterized in that A handle (3) is fixedly connected to the connecting cylinder (4) and the installation shell (1).

8. A vacuum cleaner comprising: The dust separation device according to any one of claims 1 to 7, and a dust suction head (22) detachably connected thereto.

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