Cyclone separator for cleaning equipment and cleaning equipment having it

Abstract

This invention relates to a cyclone separator device for cleaning equipment and a cleaning equipment having the same. The cyclone separator device includes: a dust collection cup having a dust inlet and an air outlet; a separator cylinder disposed inside the dust collection cup, with multiple filter holes on its wall communicating with the dust inlet; multiple cyclone separator tubes, with multiple inlets distributed at the top of the separator cylinder and communicating with its interior, the multiple cyclone separator tubes converging towards the center of the separator cylinder in a downward inclination to form multiple dust collection ports, each dust collection port being located radially inner to the lower projection of the cyclone separator tube; and a dust collection tube assembly vertically disposed inside the separator cylinder, with multiple mating interfaces on its circumferentially arranged to connect with the multiple dust collection ports. The cyclone separator device of this invention increases the inclination angle of the cyclone separator tubes, thereby reducing the dust collection volume occupied by the cyclone separator tubes in the dust collection cup.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more specifically to a cyclone separator for cleaning equipment and a cleaning equipment having the same. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Currently, the multi-cone cyclone separators commonly used in vacuum cleaners include double-layer and single-layer structures. In the double-layer structure, the two cones of the multi-cone cyclone separator are not at the same angle to the axis of the dust cup. However, the projected circle of each cone and the projected circle of the dust outlet are still concentric circles. Moreover, the double-layer structure of the multi-cone cyclone separator is complex due to its different angles of tilt, and it requires high installation precision and is costly.

[0004] Single-layer multi-cone cyclone separators are relatively common. The projection circles of each cone in the inner layer and the projection circles of the dust inlet are still concentric circles. The projection circles of each cone in the outer layer and the projection circles of the dust inlet are in a nearly tangent relative position. The diameter of the circumscribed circle formed by the dust inlet of each cone in a single-layer multi-cone cyclone separator is still very large, which will cause the dust cup to lose a part of its effective volume. Summary of the Invention

[0005] The present invention aims to at least partially solve the technical problem that the excessive radial dimension of existing cyclone separators affects the dust cup's dust capacity.

[0006] To achieve the above objectives, a first aspect of the present invention provides a cyclone separation device for a cleaning equipment. The cyclone separation device includes: a dust collection cup having a dust inlet and an air outlet; a separation cylinder disposed inside the dust collection cup, with the cylinder wall having multiple filter holes communicating with the dust inlet; multiple cyclone separation tubes having multiple inlets distributed at the top of the separation cylinder and communicating with the separation cylinder, the multiple cyclone separation tubes converging towards the center of the separation cylinder in a downward inclination to form multiple ash discharge ports, and each ash discharge port being located radially inner to the lower projection of the cyclone separation tube; and an ash discharge pipe assembly disposed vertically inside the separation cylinder, with the pipe wall of the ash discharge pipe assembly having multiple mating interfaces along the circumferential direction that connect with the multiple ash discharge ports.

[0007] The cyclone separator provided by this invention increases the tilt angle of the cyclone separator tube, thereby reducing the dust storage volume occupied by the cyclone separator tube in the dust storage cup.

[0008] In addition, the cyclone separator of the cleaning equipment described above according to the present invention may also have the following additional technical features:

[0009] According to one embodiment of the present invention, a plurality of inlets of a plurality of cyclone separators are circumferentially surrounding the top periphery of the separator cylinder, and each cyclone separator includes an outer inlet located on the outer side and an inner inlet located on the inner side.

[0010] According to one embodiment of the present invention, the top of the separator is provided with a platform communicating with multiple inlets, and the platform is provided with two arc-shaped air-gathering plates surrounding each inlet, the two arc-shaped air-gathering plates forming an outer inlet and an inner inlet in a staggered manner.

[0011] According to one embodiment of the present invention, each cyclone separator includes a vertical pipe section disposed at the platform and an inclined pipe section connected to the vertical pipe section and bent toward the ash discharge pipe assembly.

[0012] According to one embodiment of the present invention, each cyclone separator tube is provided with a spiral air duct inside, corresponding to the bending direction of the two arc-shaped air-gathering plates.

[0013] According to one embodiment of the present invention, the ash discharge pipe assembly includes an ash storage pipe and a docking cover. The ash storage pipe is isolated from the separation cylinder. The docking cover is a conical structure disposed on the top of the ash storage pipe, and multiple docking ports are disposed on the docking cover circumferentially.

[0014] According to one embodiment of the present invention, the top of the ash storage pipe is provided as a conical interface that connects with the docking cover, and the inner wall of the separation cylinder forms an air duct and a dust storage chamber between the docking cover, the conical interface and the multiple cyclone separation pipes.

[0015] According to one embodiment of the present invention, the ash storage pipe extends out of the bottom of the separation cylinder, and the cyclone separation device further includes a skirt disposed between the bottom of the separation cylinder and the ash storage pipe.

[0016] According to one embodiment of the present invention, the cyclone separator further includes a plurality of counterflow pipes, which extend into a plurality of cyclone separators in a one-to-one correspondence, and the ends of the plurality of counterflow pipes extending out of the plurality of cyclone separators are connected to the airflow outlet.

[0017] A second aspect of the present invention provides a cleaning device comprising a cyclone separator according to a first aspect of the present invention. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0019] Figure 1 This is a cross-sectional view of a cyclone separator according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the disassembled structure of the cyclone separator shown;

[0021] Figure 3 for Figure 1 A partial disassembled structural diagram of the cyclone separator shown.

[0022] Figure 4 This is a schematic diagram of the structure of a separation cylinder according to an embodiment of the present invention;

[0023] Figure 5 This is an isometric view of multiple cyclone separator tubes according to an embodiment of the present invention;

[0024] Figure 6 for Figure 5 A top view of multiple cyclone separators is shown.

[0025] The accompanying figure is labeled as follows:

[0026] 100. Cyclone separator;

[0027] 10. Dust collection cup; 11. Upper cup lid; 12. Lower cup lid; 13. Backflow tube;

[0028] 20. Separation cylinder; 21. Filter holes;

[0029] 30. Cyclone separator pipe; 31. Inlet; 311. External inlet; 312. Internal inlet; 32. Ash discharge port; 33. Platform; 34. Arc-shaped air-gathering plate; 35. Positioning column;

[0030] 40. Ash discharge pipe assembly; 41. Connecting cover; 411. Connecting interface; 42. Ash storage pipe; 43. Skirt; 44. Bracket; 45. Sealing ring;

[0031] 50. Sealing gasket.

[0032] A. First-stage dust storage chamber; B. Second-stage dust storage chamber. Detailed Implementation

[0033] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that the description of the cleaning device using a handheld vacuum cleaner is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the cleaning device of the present invention. For example, the cleaning device of the present invention can also be other cleaning devices such as canister vacuum cleaners, upright vacuum cleaners, or pet brushes and curtain brushes, etc., and such modifications fall within the scope of protection of the cleaning device of the present invention.

[0034] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” and “having” are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "outer," "bottom," "upper," "back to back," "side," "axial," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0038] like Figures 1 to 6 As shown, according to an embodiment of this application, the first aspect of this application provides a cyclone separation device 100 for a cleaning device. For the convenience of describing the cyclone separation device 100 for a cleaning device, this application describes it through the cyclone separation device 100 in a vacuum cleaner. The cyclone separation device 100 according to an embodiment of this application includes a dust collection cup 10, a separation cylinder 20, a plurality of cyclone separation tubes 30 and a dust collection tube assembly 40.

[0039] Specifically, the dust collection cup 10 includes a cup body, an upper cover 11, and a lower cover 12. The dust collection cup 10 defines a first-stage dust collection chamber A and a second-stage dust collection chamber B. In the airflow direction, the second-stage dust collection chamber B is located downstream of the first-stage dust collection chamber A. The cup body of the dust collection cup 10 has a dust inlet communicating with the first-stage dust collection chamber A. The upper cover 11 is pivotally mounted on the top of the cup body for opening or closing the upper end of the cup body. The upper cover 11 has an airflow outlet communicating with the second-stage dust collection chamber B. The lower cover 12 is pivotally mounted on the bottom of the cup body for opening or closing the lower end of the cup body. The inner wall of the first-stage dust collection chamber A has dust-blocking ribs protruding from the inner wall surface, allowing dust to accumulate within the first-stage dust collection chamber A without backflow.

[0040] like Figure 1 and Figure 3As shown, the cyclone separator 100 also includes a separator cylinder 20 and multiple cyclone separator tubes 30 located within the dust collection cup 10. In the airflow direction, the multiple cyclone separator tubes 30 are located downstream of the separator cylinder 20. The separator cylinder 20 is located within the first-stage dust collection chamber A, and the multiple cyclone separator tubes 30 are located within the second-stage dust collection chamber B. The cylinder wall of the separator cylinder 20 has multiple filter holes 21, which are connected to the dust gas inlet of the dust collection cup 10. The dust gas enters the multiple filter holes 21 through the dust gas inlet and then enters the separator cylinder 20. The separator cylinder 20 performs initial filtration with the dust gas, filtering out large dust particles and discharging them into the first-stage dust collection chamber A. Multiple cyclone separators 30 have multiple inlets 31 distributed at the top of the separator cylinder 20. The multiple inlets 31 are connected to the air outlet of the separator cylinder 20. The multiple cyclone separators 30 converge toward the middle of the separator cylinder 20 in a downward inclination to form multiple dust collection ports 32. Each dust collection port 32 is located radially inside the lower projection of the cyclone separator 30. The multiple cyclone separators 30 are connected to the airflow outlet of the dust collection cup 10. The dust collection pipe assembly 40 is vertically arranged inside the separator cylinder 20. The pipe wall of the dust collection pipe assembly 40 is provided with multiple mating interfaces 411 along the circumferential direction to connect with the multiple dust collection ports 32.

[0041] The cyclone separator 100 of this application adopts a single-layer multi-cone tube arrangement, which has a relatively simple structure and installation requirements. The projection circle of each cone tube is tangent to or even intersects with the projection circle of the dust collection port 32. This can make the diameter of the outer tangent circle formed by the dust collection port 32 of the outer multi-cone tube quite small, which is beneficial for some special arrangements and can increase the total volume of the dust collection cup 10.

[0042] like Figure 5 and Figure 6 As shown, multiple cyclone separators 30 are arranged in a roughly annular shape around the top periphery of the separator 20. Each cyclone separator 30 includes an outer inlet 311 on the outer side and an inner inlet 312 on the inner side, both of which are connected to the separator 20. The outer inlets 311 are located on the outer ring of the annulus, meaning they open towards the outer side of the multiple cyclone separators 30. The inner inlets 312 are located on the inner ring of the annulus, meaning they open towards the inner side of the multiple cyclone separators 30. After the dust-laden airflow enters the separator 20 for initial cyclone separation, it enters the multiple cyclone separators 30 through the outer inlet 311 and the inner inlet 312, respectively. The multiple cyclone separators 30 also have dust outlets. The dust filtered by the multiple cyclone separators 30 is discharged through the dust outlets into the second-stage dust storage chamber B.

[0043] Therefore, according to the cyclone separator 100 of the present invention, by providing a plurality of cyclone separator tubes 30 with an annular structure, on the one hand, the airflow channels of the plurality of cyclone separator tubes 30 can be expanded, which is beneficial to reducing the wind resistance of the plurality of cyclone separator tubes 30, thereby improving the separation efficiency of the cyclone separator 100; on the other hand, by providing an outer inlet 311 and an inner inlet 312, the airflow enters the plurality of cyclone separator tubes 30 simultaneously through the inner and outer sides of the plurality of cyclone separator tubes 30, which not only expands the area of ​​the air inlet, but also improves the airflow uniformity of the cyclone separator 100, thereby improving the separation effect of the plurality of cyclone separator tubes 30.

[0044] Furthermore, the total area of ​​the multiple external inlets 311 and multiple internal inlets 312 is greater than the area of ​​the dust gas inlet on the dust collection cup 10. The dust-laden airflow first enters the separation cylinder 20 for cyclone separation. Then, part of the airflow after cyclone separation in the separation cylinder 20 enters the multiple cyclone separation tubes 30 through the multiple external inlets 311 and multiple internal inlets 312 for cyclone separation. By setting the total area of ​​the multiple external inlets 311 and multiple internal inlets 312 to be greater than the area of ​​the dust gas inlet, the airflow resistance from the separation cylinder 20 to the multiple cyclone separation tubes 30 is less than the airflow resistance at the dust gas inlet, further reducing flow resistance loss and improving dust removal efficiency.

[0045] like Figure 2 and Figure 4 As shown, according to one embodiment of the present invention, a separating cylinder 20 is disposed inside a dust collection cup 10 and defines a first-stage cyclone channel with the inner peripheral wall of the dust collection cup 10. The separating cylinder 20 has a plurality of spaced-apart filter holes 21 to connect the first-stage cyclone channel and the air inlet. The plurality of filter holes 21 are disposed on the lower part of the side peripheral wall of the separating cylinder 20. The dust-laden airflow enters the dust collection cup 10 from the dust inlet, first undergoes cyclone separation around the upper part of the side peripheral wall of the separating cylinder 20, and then enters the plurality of cyclone separation tubes 30 through the plurality of filter holes 21. The upper part of the outer peripheral wall of the separating cylinder 20 has a guide member extending spirally along its axial direction, and the guide member is located above the plurality of filter holes 21.

[0046] The dust-laden airflow enters the first-stage cyclone channel through the dust inlet for cyclone separation. The separated airflow flows out through multiple filter holes 21 and enters multiple cyclone separation tubes 30. The first-stage cyclone channel can buffer the airflow, allowing the dust remaining in the airflow to settle further, thereby improving the dust removal effect of the cyclone separation device 100.

[0047] The total area of ​​the multiple filter holes 21 is greater than the area of ​​the dust inlet, which makes the airflow resistance at the first-stage cyclone channel less than the airflow resistance at the dust inlet of the dust collection cup 10, thereby reducing flow resistance loss, avoiding the risk of blockage, and further improving the suction performance of the cyclone separator 100.

[0048] Multiple filter holes 21 are set on the lower part of the side wall of the separation cylinder 20, that is, no ventilation holes are set on the upper part of the side wall of the separation cylinder 20. The dust-laden airflow enters the dust collection cup 10 from the dust inlet 113. The dust-laden airflow first undergoes cyclone separation around the upper part of the side wall of the separation cylinder 20, and then passes through multiple filter holes 21 into multiple cyclone separation tubes 30. This allows the dust-laden airflow to be fully separated before passing through multiple filter holes 21 into multiple cyclone separation tubes 30, thereby improving the separation effect.

[0049] In some examples, the upper part of the outer peripheral wall of the separator 20 has a guide that extends spirally along the axial direction of the separator 20, thereby accelerating the airflow. The guide is located above multiple ventilation holes, and the guide increases the flow speed of the dust-laden airflow, thereby improving the dust-air separation speed and the separation effect.

[0050] like Figure 5 and Figure 6 As shown, according to one embodiment of the present invention, the top of the separator 20 is provided with a platform 33 communicating with a plurality of inlets 31, and the platform 33 is provided with two arc-shaped air-gathering plates 34 surrounding the periphery of each inlet 31, the two arc-shaped air-gathering plates 34 forming an outer inlet 311 and an inner inlet 312 in a staggered manner.

[0051] On the one hand, the two arc-shaped air-gathering plates 34 can expand the air duct area of ​​the multiple cyclone separators 30, reduce wind resistance, and improve the separation efficiency of the multiple cyclone separators 30. On the other hand, the multiple external inlets 311 and multiple internal inlets 312 can simultaneously draw air from the inside and outside of the multiple cyclone separators 30. Thus, the combination of internal and external air intake is conducive to promoting uniform air intake of the multiple cyclone separators 30, which can more rationally coordinate with the separation cylinder 20 to perform separation work, thereby improving the working efficiency of the cyclone separator 100.

[0052] Furthermore, such as Figure 1 and Figure 3 As shown, each cyclone separator 30 includes a vertical pipe section disposed at the platform 33 and an inclined pipe section connected to the vertical pipe section and bent toward the ash discharge pipe assembly 40. The combination of the vertical pipe section and the inclined pipe section can reduce the radial space occupied by each cyclone separator 30 and increase the dust holding space of the separator 20.

[0053] like Figure 1 and Figure 3As shown, according to an embodiment of the present invention, each cyclone separator 30 has a cyclone channel and a first air inlet channel extending along its axial direction. That is, each cyclone separator 30 is formed as a cone, for example, each cyclone separator 30 is formed as a cone with a diameter that gradually decreases from top to bottom. The outer inlet 311 and the inner inlet 312 are respectively provided on the outer side and the inner side of the peripheral wall of the cyclone separator 30. The bottom of each cyclone separator 30 is open and has a dust collection port 32.

[0054] Specifically, the top of the separator 20 is provided with a platform 33 that communicates with multiple inlets 31, and the platform 33 is provided with two arc-shaped wind-gathering plates 34 surrounding each inlet 31. The two arc-shaped wind-gathering plates 34 are staggered to form an outer inlet 311 and an inner inlet 312. The interior of each cyclone separator 30 is provided with a spiral air duct corresponding to the bending direction of the two arc-shaped wind-gathering plates 34. Two arc-shaped air-gathering plates 34 are respectively connected between the outer inlet 311, the inner inlet 312 and the spiral air duct. One end of the two arc-shaped air-gathering plates 34 is connected to the spiral air duct of the cyclone separator 30, and the other end of the two arc-shaped air-gathering plates 34 forms the outer inlet 311 and the inner inlet 312. The two arc-shaped air-gathering plates 34 extend tangentially along the spiral air duct of the cyclone separator 30. That is to say, the central axis of the two arc-shaped air-gathering plates 34 is perpendicular to the central axis of the cyclone separator 30 and the tangential of the cyclone separator 30, and the two arc-shaped air-gathering plates 34 are open to the outer and inner sides of the cyclone separator 30, respectively.

[0055] In some examples, one of the two arc-shaped air-gathering plates 34 extends tangentially along the outer inlet 311 of the cyclone separator 30, and the other arc-shaped air-gathering plate 34 extends tangentially along the inner inlet 312 of the cyclone separator 30. This allows one arc-shaped air-gathering plate 34 to smoothly transition into the outer inlet 311 of the cyclone separator 30, and the other arc-shaped air-gathering plate 34 to smoothly transition into the inner inlet 312 of the cyclone separator 30. This reduces airflow loss and thus improves dust-gas separation efficiency.

[0056] Optionally, one axial end of the cyclone separator 30 (e.g. Figure 2 The lower end shown is provided with a dust discharge port 32, and the inlet 31 is located at the other axial end of the cyclone separator 30 (e.g., the lower end is shown with a dust discharge port 32). Figure 1 As shown at the upper end), the diameter of the cyclone separator 30 gradually decreases along its axial direction from the inlet 31 to the ash discharge port 32.

[0057] The dust discharge port 32 is located at the lower end of the cyclone separator 30, and the inlet 31 is located at the upper end of the cyclone separator 30. On the one hand, gravity facilitates the discharge of dust from the cyclone separator 30. On the other hand, the upper diameter of the cyclone separator 30 is larger than the lower diameter. When the dust-laden air flows through the cyclone separator 30, it flows from the larger diameter end to the smaller diameter end, which can separate the dust in the dust-laden air by means of centrifugal force. The structure is simple and the separation effect is good.

[0058] like Figure 3 and Figure 4 As shown, according to one embodiment of the present invention, the cyclone separator 100 further includes a plurality of counterflow pipes 13, the number of which is equal to the number of the plurality of cyclone separators 30. The plurality of counterflow pipes 13 extend into the plurality of cyclone separators 30 in a one-to-one correspondence. One end of the counterflow pipe 13 extending out of the plurality of cyclone separators 30 is connected to the airflow outlet of the dust collection cup 10, and the central axis of the counterflow pipe 13 within the plurality of cyclone separators 30 coincides with the central axis of the corresponding cyclone separator 30.

[0059] By setting a countercurrent pipe 13 inside the cyclone separator 30, the dust and gas in the multiple cyclone separators 30 are separated, and the dust is discharged from the dust outlet of the cyclone separator 30. The treated clean air is discharged through the countercurrent pipe 13, which not only facilitates the airflow discharge but also prevents the filtered dust from re-entering the clean air, thus improving the dust and gas separation effect.

[0060] The top of the multiple counterflow pipes 13 is also provided with a platform 33, which has multiple rectifier holes and a stop part for stopping the gas discharged from the counterflow pipes 13. The projection of the counterflow pipes 13 on the platform 33 at least partially coincides with the stop part, and the top of the platform 33 forms an outlet.

[0061] Platform 33 is located above the dust collection cup 10 and above multiple counterflow pipes 13. The upper cup cover 11 and platform 33 are sealed together by a sealing gasket 50. Platform 33 has a stop portion for blocking gas discharged from the outlet and multiple flow-rectifying holes. The flow-rectifying holes are connected to the outlet. In a projection plane perpendicular to the central axis of the outlet, the projection of the outlet at least partially coincides with the projection of the stop portion. Therefore, when the airflow from the outlet hits the stop portion, the airflow direction is deflected and it flows out through the flow-rectifying holes.

[0062] The platform 33 may be provided with multiple installation limit buckles spaced apart along its circumference, and the dust cup 10 of the vacuum cleaner has multiple slots that correspond one-to-one with the multiple installation limit buckles, so that the platform 33 can be fixed on the dust cup 10.

[0063] It is understood that the present invention does not impose any special restrictions on the shape of the stop and the shape of the rectifier hole. The stop can be circular and the rectifier hole can be circular. The diameter of the rectifier hole is not particularly limited. For example, the diameter of the rectifier hole can be 2.5 mm. Alternatively, the solid part of the platform 33 can be constructed to include only the stop and a plurality of ribs, with the ribs serving only as supports and connections.

[0064] According to an embodiment of the present invention, the dust cup 10 for a vacuum cleaner uses the platform 33 to forcibly separate air and dust, which can reduce the amount of dust flowing out of the dust cup 10, thereby achieving high dust-air separation efficiency and good cleaning effect; in addition, the multiple rectifier holes can rectify and break up the airflow, making the airflow leaving the dust cup 10 more uniform and reducing fluctuations, thereby reducing noise and energy consumption.

[0065] According to some embodiments of the present invention, in a projection plane perpendicular to the central axis of the air outlet, the projection of the air outlet is located within the projection of the stop portion, so that the airflow flowing out of the air outlet can hit the stop portion completely, thereby further improving the dust-air separation efficiency.

[0066] like Figure 2 and Figure 3 As shown, according to one embodiment of the present invention, the cyclone separator 100 further includes a dust collection pipe assembly 40, which includes a dust storage pipe 42 and a docking cover 41. The dust storage pipe 42 is isolated from the separator 20. The docking cover 41 is a conical structure disposed on the top of the dust storage pipe 42. Multiple docking ports 411 are circumferentially disposed on the docking cover 41. The dust collection pipe assembly 40 is disposed below multiple cyclone separators 30, and at least a portion of the dust storage pipe 42 is disposed inside the separator 20. A first-stage cyclone channel is defined between the separator 20 and the inner peripheral wall of the dust collection cup 10. The first-stage cyclone channel connects the dust inlet and the dust entering the separator 20. An intermediate airflow channel is defined between the separator 20 and the dust storage pipe 42. The intermediate airflow channel connects multiple outer inlets 311 and multiple inner inlets 312. The airflow discharged from the separator 20 enters the multiple cyclone separators 30 through the intermediate airflow channel. The separator 20 has multiple filter holes 21 arranged at intervals, and the multiple filter holes 21 are connected to the first-stage cyclone channel and the intermediate airflow channel.

[0067] Furthermore, the docking cover 41 is a conical structure set on the top of the ash storage pipe 42. Multiple docking interfaces 411 are arranged circumferentially on the docking cover 41. The top of the ash storage pipe 42 is set as a conical docking interface that docks with the docking cover 41. The conical docking interface and the docking cover 41 are sealed by a sealing ring 45. The separation cylinder 20 forms an air duct and a second-stage dust storage chamber B with the docking cover 41, the conical docking interface and the multiple cyclone separation pipes 30. The lower ends of the multiple cyclone separation pipes 30 pass through the docking cover 41 and the conical docking interface. After the dust-laden airflow is separated by cyclones in the multiple cyclone separation pipes 30, the dust falls downward into the second-stage dust storage chamber B.

[0068] In some specific examples, the ash storage pipe 42 extends beyond the bottom of the separation cylinder 20, and the cyclone separator 100 also includes a skirt 43 disposed between the bottom of the separation cylinder 20 and the ash storage pipe 42. Specifically, the ash storage pipe 42 includes an upper pipe section and a lower pipe section, the lower pipe section being connected to the lower end of the upper pipe section, and the inner diameter of the lower pipe section being slightly smaller than the inner diameter of the upper pipe section, thereby forming a transition section at the connection between the upper pipe section and the lower pipe section, and forming the tapered interface as described in the above embodiment on the upper pipe section.

[0069] The upper pipe section is inserted into the separator 20, defining an intermediate airflow channel between the upper pipe section and the separator 20. The upper pipe section is connected to the lower ends of multiple cyclone separators 30, allowing the dust separated by the multiple cyclone separators 30 to fall directly into the second-stage dust storage chamber B. Furthermore, the lower part of the separator 20 has an installation port, through which the lower pipe section passes, and the transition section abuts against the upper part of the installation port of the separator 20. That is, the lower side of the transition section abuts against the upper side of the installation port, which facilitates the installation of the ash storage pipe 42 and improves the stability of the cyclone separator 100.

[0070] The cyclone separator 100 also includes a support 44, which is sleeved on the outside of the ash storage tube 42 and detachably connected to it. A skirt 43 is connected to the support 44. The support 44 has a hollow structure with a cavity in the middle for fitting with the ash storage tube 42. After the ash storage tube 42 is installed into the separator 20, the support 44 and skirt 43 are assembled and sleeved on the outside of the ash storage tube 42. The support 44 can be configured as a cylindrical column with a uniform inner diameter and a uniform outer diameter, which is convenient for manufacturing. The outer wall of the ash storage tube 42 contacts the inner wall of the support 44, meaning that the outer wall of the ash storage tube 42 is also configured to have a uniform diameter. The bracket 44 can also be configured such that the inner wall diameter is equal everywhere, and the outer wall diameter gradually increases along the gas flow direction, so that the outer wall is inclined outward relative to the axis. The size of the second-stage dust storage chamber A formed between the outer wall and the inner wall of the dust storage cup 10 gradually decreases along the gas flow direction. The inclined outer wall can further block dust or impurities from flowing upward with the airflow, thereby improving the separation efficiency.

[0071] In some embodiments of the present invention, the support 44 and the ash storage pipe 42 are detachably connected, and the skirt 43, in addition to being connected to the support 44, can also be detachably connected to the ash storage pipe 42. When the skirt 43 is connected to both the support 44 and the ash storage pipe 42, it can increase the reliability of the skirt 43 in maintaining stability under the force of airflow. When the skirt 43 is only connected to the support 44, it is convenient for users to disassemble and assemble, and it also reduces the design difficulty for researchers.

[0072] According to one embodiment of the present invention, the dust inlet is disposed on the side of the dust collection cup 10, and the airflow outlet is disposed on the top of the dust collection cup 10 (e.g., ...). Figure 1 and Figure 2 (As shown in the upper part), the separation cylinder 20 and multiple cyclone separation tubes 30 are arranged in a vertical direction.

[0073] Furthermore, the first-stage dust storage chamber A is located circumferentially outside the second-stage dust storage chamber B. The dust-laden airflow enters the cyclone separator 100 from the side of the dust storage cup 10. After being separated by the separator 20 and multiple cyclone separator tubes 30, the gas density is low, allowing the gas to be discharged through the top of the dust storage cup 10.

[0074] Of course, the location of the dust inlet is not limited to the side of the dust collection cup 10, but can also be set at the bottom of the dust collection cup 10 to achieve the bottom air intake mode; the separator 20 can also be offset from the vertical direction for easy hand-holding and aesthetic purposes; the arrangement of multiple cyclone separators 30 can also be discrete to make full use of the space inside the dust collection cup 10.

[0075] According to one embodiment of the present invention, a plurality of cyclone separator tubes 30 are located at the top of the separator cylinder 20, which can shorten the length of the airflow channel between the plurality of cyclone separator tubes 30 and the separator cylinder 20. This not only makes full use of the internal space of the dust collection cup 10, but also helps to reduce the volume of the dust collection cup 10, providing convenience for users to use the vacuum cleaner.

[0076] Furthermore, the single-layer multi-conical tube structure adopts a dual-inlet form and is positioned and installed by two positioning posts 35. The projected circle of the tube body is not concentric with the projected circle of the ash discharge port 32, but intersects on the side near the central axis. This structural form allows for a smaller diameter of related parts such as the ash discharge port 32 and the ash discharge tube 42, and further allows for a smaller diameter of the metal mesh on the separation cylinder 20, increasing the total dust holding capacity of the dust collection cup 10. Experimental results show that when the projected circle of the tube body intersects with the projected circle of the ash discharge port 32, the separation effect is no different from when the two projected circles are tangent or concentric.

[0077] A second aspect of the present invention provides a cleaning device comprising a cyclone separator 100 according to a first aspect of the present invention.

[0078] The cleaning device of the second aspect of this application has all the technical effects of the cyclone separator 100 of the first aspect of this application, and will not be described again here.

[0079] It should be noted that this embodiment only describes the structure of the cleaning equipment related to the improvement points of this application, and does not mean that the cleaning equipment does not have other structures. Since other structures on the cleaning equipment are conventional devices for those skilled in the art, they will not be described in detail here.

[0080] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cyclone separator for a cleaning equipment, characterized in that, The cyclone separator includes: A dust collection cup, wherein the dust collection cup has a dust inlet and an air outlet; A separation cylinder is disposed inside the dust collection cup, and the cylinder wall of the separation cylinder is provided with a plurality of filter holes communicating with the dust inlet; Multiple cyclone separators are provided, with multiple inlets of the multiple cyclone separators distributed at the top of the separation cylinder and communicating with the interior of the separation cylinder. The multiple cyclone separators converge toward the middle of the separation cylinder in a downward inclination manner to form multiple ash discharge ports, and each ash discharge port is located on the radially inner side of the lower projection of the cyclone separator. The ash discharge pipe assembly is vertically disposed inside the separation cylinder, and the pipe wall of the ash discharge pipe assembly is provided with multiple interfaces along the circumferential direction to connect with the multiple ash discharge ports.

2. The cyclone separator of the cleaning equipment according to claim 1, characterized in that, The plurality of inlets of the plurality of cyclone separators are circumferentially surrounding the top periphery of the separator cylinder, and each of the cyclone separators includes an outer inlet located on the outer side and an inner inlet located on the inner side.

3. The cyclone separator of the cleaning equipment according to claim 2, characterized in that, The top of the separator is provided with a platform that communicates with the multiple inlets, and the platform is provided with two arc-shaped air-gathering plates surrounding each inlet. The two arc-shaped air-gathering plates are staggered to form the outer inlet and the inner inlet.

4. The cyclone separator of the cleaning equipment according to claim 3, characterized in that, Each of the cyclone separators includes a vertical pipe section disposed at the platform and an inclined pipe section connected to the vertical pipe section and bent toward the ash discharge pipe assembly.

5. The cyclone separator of the cleaning equipment according to claim 4, characterized in that, Each of the cyclone separators has a spiral air duct inside that corresponds to the bending direction of the two arc-shaped air-gathering plates.

6. The cyclone separator of the cleaning equipment according to claim 5, characterized in that, The ash collection pipe assembly includes an ash storage pipe and a docking cover. The ash storage pipe is isolated from the separation cylinder. The docking cover is a conical structure located on the top of the ash storage pipe. The plurality of docking ports are arranged circumferentially on the docking cover.

7. The cyclone separator for cleaning equipment according to claim 6, characterized in that, The top of the ash storage pipe is configured as a conical interface that connects with the docking cover. The inner wall of the separation cylinder forms an air duct and a dust storage chamber with the docking cover, the conical interface, and the plurality of cyclone separation pipes.

8. The cyclone separator of the cleaning equipment according to claim 7, characterized in that, The ash storage pipe extends out of the bottom of the separation cylinder, and the cyclone separation device also includes a skirt disposed between the bottom of the separation cylinder and the ash storage pipe.

9. The cyclone separator of the cleaning equipment according to claim 1, characterized in that, The cyclone separator also includes multiple counterflow pipes, which extend into the multiple cyclone separator pipes one by one, and the ends of the multiple counterflow pipes extending out of the multiple cyclone separator pipes are connected to the airflow outlet.

10. A cleaning device, characterized in that, The cleaning equipment includes a cyclone separator according to any one of claims 1 to 9.

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