Cyclone separator, cyclone separation device and cleaning equipment

Abstract

The invention provides a cyclone separator, a cyclone separation device and cleaning equipment, and belongs to the field of cleaning equipment. The cyclone separator comprises an inner air cone and an outer air cone, the inner air cone comprises a plurality of first taper pipes, and each first taper pipe is provided with a first air inlet; the outer air cone comprises a plurality of second conical pipes, the multiple second conical pipes are arranged on the periphery of the inner air cone in a surrounding mode, and each second conical pipe is provided with a second air inlet; the inner diameter of the second taper pipe is larger than that of the first taper pipe, and at least part of the second air inlet is located on the upstream of the first air inlet in the air inlet direction. According to the cyclone separator, the cyclone separation device and the cleaning equipment, when air flow enters the separator, the air flow preferentially flows to the second taper pipe with smaller resistance and a shorter air inlet path, the remaining air flow enters the first taper pipe to be subjected to cyclone separation, air flow distribution can be optimized, the local overload risk is reduced, and the service life of the cyclone separator is prolonged. And the vortex separation efficiency and stability are improved.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of cleaning equipment, and particularly relates to a cyclone separator, a cyclone separation device, and a cleaning equipment. Background Art

[0002] As a common industrial and household cleaning device, cyclone dust removal equipment is widely used to process dusty airflows to separate and collect solid particles and dust. In existing cyclone dust removal equipment, a multi-stage separation method is usually adopted to improve the dust removal effect. Cyclone dust removal equipment generally consists of a filter mesh cover and a cyclone separator, where the filter mesh cover is used to initially filter large particles and solid impurities in the dusty airflow, and the cyclone separator further separates fine particles and dust. Summary of the Invention

[0003] Existing cyclone separators usually adopt a single conical structure, and the airflow distribution design of the cyclone separator is not optimized enough. When the dusty airflow enters the separation unit, it is prone to uneven distribution, resulting in too high a load on some separation units and easy generation of turbulence in the internal flow, thereby reducing the overall separation efficiency.

[0004] The purpose of the present disclosure is to provide a cyclone separator, a cyclone separation device, and a cleaning equipment, which can improve the stability of the airflow and the separation efficiency.

[0005] To achieve the above purpose, the technical solutions provided by the present disclosure are as follows:

[0006] In a first aspect, the present disclosure provides a cyclone separator, which includes an inner wind cone and an outer wind cone. The inner wind cone includes a plurality of first cone tubes, and the first cone tubes have first air inlets; the outer wind cone includes a plurality of second cone tubes, and the plurality of second cone tubes surround the outer periphery of the inner wind cone. The second cone tubes have second air inlets; wherein, the inner diameter of the second cone tubes is greater than the inner diameter of the first cone tubes, and the second air inlets are at least partially located upstream of the first air inlets in the air inlet direction.

[0007] In one or more embodiments, an air inlet space for airflow to pass through is formed between the inner wind cone and the outer wind cone, and the first air inlets and the second air inlets are located in the air inlet space.

[0008] In one or more embodiments, there is an air inlet channel communicating with the air inlet space between two adjacent second cone tubes, and the distance between the second air inlet and the air inlet channel is less than the distance between the first air inlet and the air inlet channel.

[0009] In one or more embodiments, the first tapered tube includes a first windward wall for guiding air flow into the first air inlet. Each of the first tapered tubes of the inner wind cone is inscribed in the same outer circle, and the first windward wall extends along the tangent direction of the first tapered tube from the position where the first tapered tube is tangent to the outer circle.

[0010] In one or more embodiments, the second tapered tube includes a second windward wall for guiding air flow into the second air inlet, and the second windward wall extends towards the center of the outer wind cone along the tangent direction of the second tapered tube.

[0011] In one or more embodiments, the outer wind cone includes a plurality of wind cone groups, each wind cone group includes two adjacent second tapered tubes, and the second windward walls of the two second tapered tubes in the wind cone group extend from the tube walls of the region where the two second tapered tubes are adjacent towards the center of the outer wind cone.

[0012] In one or more embodiments, the included angle between the axis of the first tapered tube and the axis of the second tapered tube is 5 - 15°.

[0013] In a second aspect, the present disclosure provides a cyclone separation device, which includes a housing, a dust bucket assembly, and the aforementioned cyclone separator. The housing is provided at the top of the dust bucket assembly, and the cyclone separator is provided inside the housing.

[0014] In one or more embodiments, the dust bucket assembly includes a first cover, a filter mesh cover, and a second cover. The housing is provided at the top of the first cover and is communicated with the inner cavity of the first cover, and the filter mesh cover is provided between the first cover and the second cover.

[0015] In one or more embodiments, the second cover includes a dust collection bucket. The dust collection bucket is provided inside the filter mesh cover and extends axially into the inner cavity of the first cover. A first passage for air flow is formed between the dust collection bucket and the filter mesh cover and the first cover.

[0016] In one or more embodiments, a baffle extending towards the first cover is provided on the outer periphery of the outer wind cone. The baffle is hermetically connected to the inner wall of the housing, and a second passage communicated with the first passage is formed between the baffle and the outer wind cone.

[0017] In one or more embodiments, the outer wind cone includes a mounting seat surrounding the outer periphery of the dust discharge port of a plurality of the second tapered tubes. The mounting seat is hermetically connected to the barrel wall of the dust collection bucket, and the dust discharge port of the second tapered tube is communicated with the inner cavity of the dust collection bucket.

[0018] In one or more embodiments, the outer wind cone includes a positioning seat disposed between a plurality of the second cone tubes. The positioning seat is provided with mounting holes corresponding to the first cone tubes. The dust discharge port of the first cone tube is inserted into the mounting holes and communicates with the inner cavity of the dust collection bucket.

[0019] In one or more embodiments, the cyclone separation device further includes a wind cone support, a wind cone upper cover, and a wind cone seal. The wind cone support and the wind cone upper cover are fixedly connected to the cyclone separator. The wind cone upper cover covers the top of the cyclone separator. The wind cone seal is disposed between the wind cone upper cover and the cyclone separator. The wind cone upper cover has a plurality of riser pipes corresponding to the positions of the first cone tubes and the second cone tubes. The riser pipes extend into the first cone tubes and the second cone tubes.

[0020] In one or more embodiments, the cyclone separation device further includes a dust cup assembly sleeved on the outer periphery of the dust bucket assembly. The dust cup assembly includes a cup body. The cup body is provided with an air flow interface, and a dust blocking piece is disposed at the air flow interface.

[0021] In one or more embodiments, a spiral air duct spirally extending around the axis of the first cover body is provided on the outer side wall of the first cover body. The air flow interface is disposed corresponding to the starting point of the spiral air duct.

[0022] In a third aspect, the present disclosure provides a cleaning device, which includes a main body and the cyclone separation device as described above connected to the main body.

[0023] The cyclone separator, the cyclone separation device, and the cleaning device provided by the present disclosure, through the design of the inner and outer double-layer wind cones, the inner wind cone includes a plurality of first cone tubes, the outer wind cone includes a plurality of second cone tubes surrounding the inner wind cone, the inner diameter of the second cone tube is larger than that of the first cone tube, and the second air inlet is located upstream of the first air inlet. This structural design enables the air flow to preferentially flow to the second cone tube with less resistance and a shorter air inlet path when entering the separator, and the remaining air flow enters the first cone tube for cyclone separation, which can optimize the air flow distribution, reduce the risk of local overload, and increase the efficiency and stability of the vortex separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic three-dimensional structure diagram of a cyclone separator in an embodiment of the present disclosure;

[0026] Figure 2 is Figure 1 a sectional view of the cyclone separator shown;

[0027] Figure 3 is Figure 1 a top view of the cyclone separator shown;

[0028] Figure 4 is a perspective view of the inner wind cone in an embodiment of the present disclosure;

[0029] Figure 5 is Figure 4 a top view of the inner wind cone shown;

[0030] Figure 6 is a perspective view of the outer wind cone in an embodiment of the present disclosure;

[0031] Figure 7 is a perspective view of the cyclone separation device in an embodiment of the present disclosure;

[0032] Figure 8 is Figure 7 a sectional view of the cyclone separation device shown;

[0033] Figure 9 is Figure 7 an exploded view of the cyclone separation device shown;

[0034] Figure 10 is a perspective view of the cyclone separation device in an embodiment of the present disclosure;

[0035] Figure 11 is Figure 10 a sectional view of the cyclone separation device shown.

[0036] Main reference numeral description:

[0037] 1 - cyclone separator, 11 - inner wind cone, 111 - first cone tube, 112 - first air inlet, 113 - first windward wall, 12 - outer wind cone, 120 - wind cone group, 121 - second cone tube, 122 - second air inlet, 123 - air inlet passage, 124 - second windward wall, 125 - mounting seat, 126 - positioning seat, 127 - positioning hole, 13 - air inlet space, 14 - baffle wall, 15 - second passage, 2 - housing, 3 - dust bucket assembly, 31 - first cover, 311 - spiral air duct, 32 - filter mesh cover, 33 - second cover, 331 - dust collection bucket, 34 - first passage, 4 - wind cone support, 5 - wind cone upper cover, 51 - riser pipe, 6 - wind cone seal, 7 - dust cup assembly, 71 - cup body, 72 - air flow interface, 73 - dust baffle. Detailed implementation manners

[0038] To enable those skilled in the art to better understand the technical solutions in this disclosure, the following will clearly and completely describe the technical solutions in the embodiments of this disclosure with reference to the accompanying drawings in the embodiments of this disclosure. Obviously, the described embodiments are only a part of the embodiments of this disclosure, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this disclosure without creative efforts shall fall within the scope of protection of this disclosure.

[0039] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0040] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. In the embodiments shown in this disclosure, the directions such as up, down, left, right, front and back are relative, and are used to explain the relative structures and movements of different components in this disclosure. When the components are in the positions shown in the drawings, these representations are appropriate. However, if the description of the position of the element changes, it is considered that these representations will also change accordingly.

[0041] Existing cyclone dust removal equipment usually adopts a structure combining a filter mesh cover and a cyclone separator. First, the larger particulate matter in the dust-containing air flow is removed through the filter mesh cover, and then the cyclone separator is used to separate the fine particulate matter and dust. However, the existing cyclone separators usually adopt a single conical structure, with a relatively low separation efficiency. Especially when dealing with high-concentration or fine particulate matter, some dust particles are difficult to be effectively captured, resulting in residual particulate matter in the exhaust gas, affecting air quality; moreover, the air flow distribution is uneven, and the distribution of the dust-containing air flow in the separation device is unreasonable, causing some separation units to be overloaded and other units to be underutilized, limiting the overall efficiency; in addition, the downstream filter components are easily blocked due to the accumulation of particulate matter, increasing the air flow resistance and reducing the long-term operation stability of the system.

[0042] Based on the analysis of the above defects, this disclosure proposes a new design idea for cyclone separators, aiming to improve the separation efficiency, improve the air flow distribution and reduce the blockage pressure of the filter mesh cover by optimizing the air flow distribution and separation mechanism. This disclosure realizes efficient and stable dust-gas separation by means of differential air flow guidance and hierarchical separation strategies, reasonably distributing the flow direction and load of the dust-containing air flow in the separation device.

[0043] Specifically, the present disclosure adopts an inner and outer double-layer separation structure. By setting a main separation channel on the outer layer, most of the dusty air flow is preferentially processed to capture high-concentration dust particles; an auxiliary separation channel is set on the inner layer to perform refined separation on the remaining air flow and capture the remaining dust particles. This hierarchical separation method with internal and external coordination can effectively balance the loads of each separation channel, avoid local overload, and optimize the air flow distribution. At the same time, by introducing a preferential guiding mechanism at the air flow inlet, it is ensured that the dusty air flow is split according to the design intention, reducing the burden on the downstream filtration components and improving the separation efficiency.

[0044] Please refer to Figures 1 to 3 As shown, the cyclone separator 1 in an embodiment of the present disclosure includes an inner wind cone 11 and an outer wind cone 12. The inner wind cone 11 includes a plurality of first cone tubes 111, and the first cone tubes 111 have first air inlets 112; the outer wind cone 12 includes a plurality of second cone tubes 121, and the plurality of second cone tubes 121 surround the outer periphery of the inner wind cone 11, and the second cone tubes 121 have second air inlets 122. Wherein, the inner diameter D of the second cone tube 121 is greater than the inner diameter d of the first cone tube 111, and the second air inlet 122 is at least partially located upstream of the first air inlet 112 in the air inlet direction (taking Figure 2 as an example, the air inlet direction can be considered from bottom to top, Figure 2 the direction of the dotted arrow in the figure is the direction in which the air flow enters the first air inlet 112 and the second air inlet 122 respectively).

[0045] The core structure of the cyclone separator 1 includes two main parts, an inner wind cone 11 and an outer wind cone 12. The inner wind cone 11 is located in the central area of the cyclone separator 1 and is composed of a plurality of first cone tubes 111, and each first cone tube 111 is provided with an independent first air inlet 112. The outer wind cone 12 surrounds the outer periphery of the inner wind cone 11 and is composed of a plurality of second cone tubes 121. These second cone tubes 121 are generally arranged in a ring shape around the outer periphery of the inner wind cone 11, and each second cone tube 121 is provided with an independent second air inlet 122. There is a certain annular space between the outer wind cone 12 and the inner wind cone 11. This layout improves the stability of the air intake volume and can effectively avoid the generation of air flow disorder. The annular arrangement of the second cone tubes 121 around the inner wind cone 11 expands the air intake area, can promote the uniform distribution of the air flow, avoids the phenomenon of single cone tube overload, and thus improves the separation efficiency and stability.

[0046] The inner diameter D of the second conical pipe 121 is greater than the inner diameter d of the first conical pipe 111, and in the air inlet direction, the spatial arrangement of the second air inlet 122 is at least partially located upstream of the first air inlet 112. When the dusty airflow enters the cyclone separator 1, it first passes through the second air inlet 122 of the outer air cone 12. And because the inner diameter of the second conical pipe 121 is larger and the flow resistance is smaller, most of the airflow can be preferentially guided into the outer air cone 12 for cyclone separation. In the outer air cone 12, the airflow gradually strips the dust therein through vortex motion and settles it to the dust collection area. At the same time, the dust that has not been completely captured and the remaining airflow will continue to flow downstream and enter the first air inlet 112 of the inner air cone 11 for further separation.

[0047] The first conical pipe 111 of the inner air cone 11 has a smaller inner diameter and a higher flow rate. This design can further capture the residual fine dust. Under the action of the centrifugal force of high-speed rotation, the particulate matter is strongly thrown towards the dust collection area along the inner wall of the first conical pipe 111, achieving a more thorough separation effect. The exhaust port of the first conical pipe 111 is connected to the top of the cyclone separator 1. The gas after multi-stage vortex filtration can reduce the particle residue rate and smoothly discharge from the exhaust port.

[0048] In terms of structural arrangement, the cooperation between the inner air cone 11 and the outer air cone 12 takes into account the optimization of the airflow path. Due to the relative upstream position layout of the second air inlet 122, the outer air cone 12 can undertake a larger part of the separation task, reducing the burden on the inner air cone 11, thereby improving the efficiency and stability of the overall equipment.

[0049] In an exemplary embodiment, please refer to Figure 3 As shown, an air inlet space 13 for the airflow to pass through is formed between the inner air cone 11 and the outer air cone 12. The first air inlet 112 and the second air inlet 122 are located in the air inlet space 13. The existence of the air inlet space 13 enables the dusty airflow to first enter this buffer area after entering the cyclone separator 1, thereby achieving a stable transition and reasonable distribution of the airflow.

[0050] Setting an independent air inlet space 13 between the outer air cone 12 and the inner air cone 11 is equivalent to adding a buffer zone outside the main cyclone cavity. When the dusty airflow enters the air inlet space 13, the airflow first undergoes a gentle transition, avoiding the turbulent flow problem caused by directly hitting the cyclone cone, and the direction and rate of the airflow can be guided by reasonably designing the angle of the air inlet.

[0051] Inside the intake space 13, the first intake port 112 and the second intake port 122 are distributed within an annular region. The second intake port 122 is located upstream of the first intake port 112 in the intake direction and has a larger intake area. This design enables most of the airflow to preferentially enter the second conical tube 121 of the outer wind cone 12 along a shorter path after entering the intake space 13. This diversion strategy effectively disperses the separation load, prevents a single conical tube from being overloaded, and improves the overall separation efficiency.

[0052] Specifically, please refer to Figure 1 and Figure 6 As shown, there is an intake passage 123 communicating with the intake space 13 between two adjacent second conical tubes 121. The distance between the second intake port 122 and the intake passage 123 is less than the distance between the first intake port 112 and the intake passage 123.

[0053] The structural relationship of the intake passage 123 depends on the gap design between the second conical tubes 121 of the outer wind cone 12. The second conical tubes 121 of the outer wind cone 12 surround the inner wind cone 11 in an annular manner, and a narrow intake passage 123 is naturally formed between two adjacent second conical tubes 121. This intake passage 123 communicates the intake space 13 between the inner wind cone 11 and the outer wind cone 12, constituting a transition path for the airflow to enter the conical tube intake port from the outside.

[0054] The intake space 13, as an annular cavity, surrounds the outer periphery of the inner wind cone 11 and accommodates the first intake port 112 and the second intake port 122, while the intake passage 123 further refines the guiding path of the airflow from the intake space 13 to the second intake port 122. By shortening the distance between the second intake port 122 and the intake passage 123, the resistance of the airflow entering the second conical tube 121 is reduced, enabling the dusty airflow to preferentially flow towards the second intake port 122. Due to the relatively longer distance, the first intake port 112 receives the remaining airflow. This layout of the distance difference utilizes the geometric characteristics of the airflow path to achieve the preferential distribution of the airflow, avoid the disordered distribution of the airflow within the separator, and ensure that each conical tube shares the separation task as designed.

[0055] Specifically, when the dusty airflow enters the intake space 13 through the intake passage 123, it will flow towards the second intake port 122 along the shortest path. Since the second intake port 122 is relatively closer to the intake passage 123, the flow resistance of the airflow here is smaller and the speed is higher. Therefore, it will preferentially enter the second conical tube 121 of the outer wind cone 12 for cyclone separation. This optimization of the flow channel reduces the dust load before entering the inner wind cone 11, reduces the airflow turbulence, and can improve the dust capture efficiency.

[0056] In an exemplary embodiment, please refer to Figure 4 and Figure 5As shown, the first conical tube 111 includes a first windward wall 113 for guiding the airflow into the first air inlet 112. Each first conical tube 111 of the inner wind cone 11 is tangent to the same outer circle O, and the first windward wall 113 extends along the tangent direction of the first conical tube 111 from the position where the first conical tube 111 is tangent to the outer circle O.

[0057] The inner wind cone 11 includes a plurality of first conical tubes 111. Each first conical tube 111 is equipped with a first air inlet 112, and the airflow is guided into it through the first windward wall 113. In terms of structural design, each first conical tube 111 of the inner wind cone 11 is tangent to the same outer circle O, and the first windward wall 113 of each first conical tube 111 extends along the tangent direction of the first conical tube 111 from the position where the first conical tube 111 is tangent to the outer circle O. This geometric arrangement enables the first windward wall 113 to conform to the direction of the swirling airflow in the cyclone separator 1, and efficiently and smoothly guide the dusty airflow into the first air inlet 112.

[0058] As an extended structure at the air inlet of the first conical tube 111, the first windward wall 113 is located outside the first air inlet 112 and extends within the outer circle O along the tangent direction of the first conical tube 111, forming a guiding surface that matches the direction of the swirling airflow. This enables the first windward wall 113 to conform to the rotation trajectory of the airflow in the intake space 13, reducing the resistance and turbulence when the airflow enters the first air inlet 112.

[0059] In an exemplary embodiment, please refer to Figure 1 and Figure 3 As shown, the second conical tube 121 includes a second windward wall 124 for guiding the airflow into the second air inlet 122. The second windward wall 124 extends along the tangent direction of the second conical tube 121 towards the center of the outer wind cone 12.

[0060] After the dusty airflow enters the cyclone separator 1, it first enters the intake space 13, where the airflow is guided to the surface of the second windward wall 124 of each second conical tube 121. Since the second windward wall 124 shows an extending trend consistent with the tangent direction of the second conical tube 121, after the airflow contacts the windward wall, it does not directly impact the conical tube wall, but turns into the second air inlet 122 along the second windward wall 124. During this process, the airflow is gradually accelerated and compressed, and immediately forms a stable rotation path after entering the conical tube.

[0061] Specifically, please refer to Figure 1 and Figure 3 As shown, the outer wind cone 12 includes a plurality of wind cone groups 120. Each wind cone group 120 includes two adjacent second conical tubes 121. The second windward walls 124 of the two second conical tubes 121 in the wind cone group 120 extend from the tube walls of the adjacent area of the two second conical tubes 121 towards the center of the outer wind cone 12.

[0062] In the wind cone group 120, the second windward walls 124 of the two second cone pipes 121 extend from the pipe walls in the mutually adjacent area of the two second cone pipes 121 along the tangential direction towards the center of the outer wind cone 12, forming a symmetric guiding structure. This design of the central extension of the windward wall enables the air flow to conform to the vortex trajectory of the cyclone separator 1 and efficiently introduce it into the second air inlet 122.

[0063] The distance between the two second cone pipes 121 in the wind cone group 120 is relatively small, forming a tight paired structure. Arranged in the way of grouping double cone pipes, it not only saves the space inside the outer wind cone 12, but also makes the air flow more concentrated towards the air inlet, reducing the waste of extra space.

[0064] In an exemplary embodiment, please refer to Figure 2 As shown, the included angle α between the axis of the first cone pipe 111 and the axis of the second cone pipe 121 is 5 to 15°.

[0065] The first cone pipe 111 of the inner wind cone 11 is arranged in parallel with the central axis of the cyclone separator 1, forming a symmetric annular array. This parallel layout ensures that the air flow in the first cone pipe 111 can form a high-speed vortex with a small deviation, enhancing the centrifugal force effect, so as to efficiently separate fine particulate matters. The second cone pipes 121 of the outer wind cone 12 are distributed in a ring around the inner wind cone 11, and their axes extend outward at an inclined angle of 5 to 15°, forming a conical structure that diverges outward. This inclined design enables the second air inlets 122 of the second cone pipes 121 to more effectively capture most of the dust-containing air flow from the intake space 13, and at the same time optimize the flow field distribution of the vortex in the second cone pipes 121.

[0066] The inclined angle design of 5 to 15° not only ensures that the second cone pipes 121 can give priority to handling high-flow air, but also avoids excessive inclination leading to air flow disorder or increased resistance. The inclined axis makes the inlets of the second cone pipes 121 face the outside of the intake space 13, expanding the air flow capture range and promoting the smooth entry of high-flow air.

[0067] Please refer to Figures 7 to 9 As shown, the present disclosure also provides a cyclone separation device, which includes a housing 2, a dust bucket assembly 3 and the aforementioned cyclone separator 1. The housing 2 is arranged on the top of the dust bucket assembly 3, and the cyclone separator 1 is arranged inside the housing 2.

[0068] The shell 2, as the main supporting component of the overall structure, is arranged on the top of the dust bucket assembly 3 and is connected to the cyclone separator 1. The shell 2 not only protects the internal core separation device, but its internal space also forms a flow path for the airflow to enter and rotate. The internal volume of the shell 2 matches the size of the cyclone separator 1 to ensure that an orderly cyclone flow can be formed after the airflow enters the shell 2. After the dust-laden airflow is separated by the cyclone separator 1, the particles are thrown to the inner wall of the dust bucket assembly 3, and gradually settle into the dust bucket assembly 3 under the dual effects of centrifugal force and gravity.

[0069] In an exemplary embodiment, please refer to Figure 7 and Figure 8 As shown, the dust bucket assembly 3 includes a first cover body 31, a filter screen cover 32 and a second cover body 33. The shell 2 is arranged on the top of the first cover body 31 and is connected to the inner cavity of the first cover body 31. The filter screen cover 32 is arranged between the first cover body 31 and the second cover body 33.

[0070] The first cover body 31 serves as the upper structure of the dust bucket assembly 3, and is cylindrical or similar in shape. Its top is sealed and connected to the shell 2, and its inner cavity is connected to the internal space of the shell 2, providing a channel for the dust-laden airflow to enter the cyclone separator 1 from the dust bucket assembly 3. The second cover body 33 is located at the lower part of the dust bucket assembly 3, and includes a dust bucket 331 and other structures for collecting separated dust particles. It is connected to the first cover body 31 to form a dust bucket frame. The filter screen cover 32 is embedded in the transition area between the first cover body 31 and the second cover body 33, and is fixed by a limiting structure. The pore design of the filter screen cover 32 allows airflow to pass through, while blocking larger particles to protect the downstream cyclone separator 1.

[0071] The first cover 31 plays the role of airflow guidance and structural support in the dust bucket assembly 3. Its inner cavity is directly connected to the inside of the shell 2 to ensure that the airflow can be transmitted to the cyclone separator 1. The filter cover 32 is the primary filtering unit of the dust bucket assembly 3. Its function is to intercept larger particles in the dust-laden airflow, such as debris or coarse dust particles, to prevent them from entering the cyclone separator 1, thereby reducing the load of the separator and extending its service life. The second cover 33 is the bottom structure of the dust bucket assembly 3, which is mainly responsible for collecting dust particles settled from the cyclone separator 1 and providing lower support for the filter cover 32.

[0072] For details, please refer to Figure 8 As shown, the second cover body 33 includes a dust collecting barrel 331, which is arranged in the filter screen cover 32 and extends axially to the inner cavity of the first cover body 31, and a first channel 34 for airflow to pass through is formed between the dust collecting barrel 331, the filter screen cover 32 and the first cover body 31.

[0073] The dust collection bucket 331 extends upward along the axial direction of the device from the bottom of the second cover 33, passes through the central area of the filter screen cover 32, and reaches the inner cavity of the first cover 31. This axial extension design enables the dust collection bucket 331 to receive the dust particles settled from the cyclone separator 1, and at the same time provides space for its docking with the inner cavity of the first cover 31. The first cover 31, as the upper structure of the dust bucket assembly 3, has its inner cavity communicating with the housing 2 and accommodates the top of the dust collection bucket 331 through the lower opening, forming a continuous air flow and dust particle transmission path.

[0074] The filter screen cover 32 is embedded between the first cover 31 and the second cover 33, surrounds the outer periphery of the dust collection bucket 331, and there is a certain distance between its inner surface and the outer wall of the dust collection bucket 331. The first channel 34 is jointly enclosed by the outer wall of the dust collection bucket 331, the inner surface of the filter screen cover 32, and the inner wall of the first cover 31, constituting the main path for the dust-containing air flow to flow from the filter screen cover 32 to the cyclone separator 1.

[0075] Specifically, please refer to Figure 6 、 Figure 8 and Figure 9 As shown, a retaining wall 14 extending towards the first cover 31 is provided around the outer periphery of the outer wind cone 12. The retaining wall 14 is hermetically connected to the inner wall of the housing 2, and a second channel 15 communicating with the first channel 34 is formed between the retaining wall 14 and the outer wind cone 12.

[0076] The retaining wall 14 and the inner wall of the housing 2 form a sealed structure through the sealed connection, ensuring the directional flow of the air flow inside the device. The sealed connection between the retaining wall 14 and the housing 2 separates the outer wind cone 12 from the inner wall of the housing 2, forming a sealed air flow transmission environment to prevent external air interference or internal air flow leakage. Between the outer wall of the retaining wall 14 and the outer wind cone 12, a second channel 15 communicating with the first channel 34 of the dust bucket assembly 3 is formed. The second channel 15 is further connected to the intake channel 123 of the cyclone separator 1, constituting the path for the dust-containing air flow to flow from the dust bucket assembly 3 to the cyclone separator 1.

[0077] The retaining wall 14 is in the shape of an annular skirt and extends downward to the top area of the first cover 31, forming a docking with the inner cavity of the first cover 31. The outer edge of the retaining wall 14 is closely attached to the inner wall of the housing 2 through the sealed connection, ensuring that the air flow will not leak from the connection point, and at the same time providing additional structural support for the outer wind cone 12. The second channel 15 is jointly enclosed by the inner surface of the retaining wall 14, the outer wall of the outer wind cone 12, and the inner wall of the housing 2, in the shape of an annular channel, extending along the axial direction, and directly communicating with the first channel 34 of the dust bucket assembly 3. The second channel 15 serves as the transition area between the first channel 34 and the intake channel 123 of the cyclone separator 1, ensuring the smooth flow of the air flow from the dust bucket assembly 3 to the intake space 13 of the cyclone separator 1.

[0078] In an exemplary embodiment, please refer to Figure 2, Figure 6 and Figure 8 As shown in Figure 6 and Figure 8 , the outer air cone 12 includes a mounting seat 125 disposed around the outer periphery of the dust discharge ports of a plurality of second cone tubes 121. The mounting seat 125 is sealingly connected to the barrel wall of the dust collection barrel 331, and the dust discharge ports of the second cone tubes 121 communicate with the inner cavity of the dust collection barrel 331.

[0079] The outer air cone 12, as the main separation component of the cyclone separator 1, includes a plurality of second cone tubes 121. Each second cone tube 121 is provided with a dust discharge port for discharging the separated dust particles. At the bottom of the outer air cone 12, an annular mounting seat 125 is provided around the outer periphery of the dust discharge ports of the plurality of second cone tubes 121. This mounting seat 125 is sealingly connected to the barrel wall of the dust collection barrel 331 of the second housing 33 in the dust barrel assembly 3. The dust discharge ports of the second cone tubes 121 are arranged facing the inner cavity of the dust collection barrel 331 to ensure that the dust discharge ports of the second cone tubes 121 communicate with the inner cavity of the dust collection barrel 331.

[0080] The dust discharge ports of the second cone tubes 121 are arranged downward and concentrated in the bottom area of the outer air cone 12. The mounting seat 125, as the bottom extension structure of the outer air cone 12, is in the shape of an annular flange and surrounds the outer periphery of the dust discharge ports of all the second cone tubes 121, forming an integrated connection surface with the bottom of the second cone tubes 121. The top opening of the dust collection barrel 331 is tightly connected to the bottom of the mounting seat 125 through a sealing member or a fitting structure to ensure that the dust particles directly fall into the inner cavity of the dust collection barrel 331 from the dust discharge ports of the second cone tubes 121 without leakage.

[0081] Specifically, please refer to Figure 2 and Figure 6 As shown in Figure 2 and Figure 6 , the outer air cone 12 includes a positioning seat 126 disposed between a plurality of second cone tubes 121. The positioning seat 126 is provided with positioning holes 127 corresponding to the first cone tube 111. The dust discharge port of the first cone tube 111 is inserted into the positioning hole 127 and communicates with the inner cavity of the dust collection barrel 331.

[0082] The second cone tubes 121 of the outer air cone 12 are arranged in a ring around the inner air cone 11, and its bottom area is connected into an integral structure through the positioning seat 126. The positioning seat 126 can be a ring-shaped or grid-shaped plate structure that spans the gaps between a plurality of second cone tubes 121. The positioning seat 126 is provided with a plurality of axially penetrating positioning holes 127, and the dimensions and positions of these holes are precisely matched with the dust discharge ports of the first cone tube 111 of the inner air cone 11. The dust discharge port of the first cone tube 111 extends downward and is inserted into the positioning hole 127 of the positioning seat 126, and a tight connection is achieved through fitting or a sealing member. The dust discharge port of the first cone tube 111 communicates with the inner cavity of the dust collection barrel 331 to ensure that the dust particles can settle from the first cone tube 111 into the dust collection barrel 331.

[0083] In an exemplary embodiment, please refer to Figure 8 and Figure 9As shown, the cyclone separation device further includes a wind cone support 4, a wind cone upper cover 5, and a wind cone seal 6. The wind cone support 4 and the wind cone upper cover 5 are fixedly connected to the cyclone separator 1. The wind cone upper cover 5 covers the top of the cyclone separator 1, and the wind cone seal 6 is provided between the wind cone upper cover 5 and the cyclone separator 1. The wind cone upper cover 5 has a plurality of riser pipes 51 corresponding to the positions of the first cone pipe 111 and the second cone pipe 121, and the riser pipes 51 extend into the first cone pipe 111 and the second cone pipe 121.

[0084] The wind cone support 4 and the wind cone upper cover 5 are stably installed on the cyclone separator 1 through fixed connection. The wind cone upper cover 5 covers the top of the cyclone separator 1, and the wind cone seal 6 is embedded between the wind cone upper cover 5 and the cyclone separator 1 to ensure airtightness. The wind cone upper cover 5 is provided with a plurality of riser pipes 51. These riser pipes 51 are precisely corresponding to the positions of the first cone pipe 111 and the second cone pipe 121 and extend into the respective cone pipes to guide the clean air flow to discharge.

[0085] The wind cone support 4 can adopt an annular or frame structure, surrounding the outer periphery of the top of the cyclone separator 1, and is fixedly connected to the outer wind cone 12 or the inner wall of the housing 2 through bolts or buckles to provide support for the cyclone separator 1. The wind cone upper cover 5 is in the shape of a circular cover and covers the top of the cyclone separator 1. The wind cone seal 6 can be made of elastic materials such as rubber or silica gel, and is provided between the contact surfaces of the wind cone upper cover 5 and the top of the cyclone separator 1 to fill potential gaps and prevent air leakage. The riser pipes 51 on the wind cone upper cover 5 are in the shape of slender tubes, extending into the first cone pipe 111 and the second cone pipe 121, aligning with the top openings of the first cone pipe 111 of the inner wind cone 11 and the second cone pipe 121 of the outer wind cone 12 respectively, and partially inserted into the cone pipes to ensure that the clean air flow can smoothly discharge from the inside of the cone pipes.

[0086] In an exemplary embodiment, please refer to Figure 10 and Figure 11 As shown, the cyclone separation device further includes a dust cup assembly 7 sleeved on the outer periphery of the dust bucket assembly 3. The dust cup assembly 7 includes a cup body 71. The cup body 71 is provided with an air flow interface 72 for connecting the air flow pipeline of the cleaning device, and a dust blocking piece 73 is provided at the air flow interface 72.

[0087] The dust cup assembly 7, as the primary collection unit of the cyclone separation device, is sleeved on the outer periphery of the dust bucket assembly 3 and includes a cup body 71. The cup body 71 is provided with an air flow interface 72 for connecting the air flow pipeline of the cleaning device. At the air flow interface 72, a dust blocking piece 73 is designed. In the working state, the dust blocking piece 73 can open inward to allow the dust-containing air flow to enter the dust cup. After stopping working, the dust blocking piece 73 can close the air flow interface 72 to prevent the dirt in the dust cup from entering the air flow pipeline of the cleaning device.

[0088] The air flow interface 72 of the cup body 71 can be located on its side wall and is designed as an open structure, which is hermetically docked with the air flow pipeline of the external cleaning device (such as the suction pipe of a vacuum cleaner) to ensure that the dust-containing air flow can smoothly enter the device. The dust baffle 73 is embedded inside the air flow interface 72 and can be designed as a movable thin sheet or grille structure.

[0089] Please refer to Figures 7 to 11 As shown, a spiral air duct 311 that spirally extends around the axis of the first cover body 31 is provided on the outer side wall of the first cover body 31, and the air flow interface 72 is arranged corresponding to the starting point of the spiral air duct 311.

[0090] The spiral air duct 311 on the outer side wall of the first cover body 31 spirally extends around the axis of the first cover body 31 to form a continuous air flow guiding path. The cup body 71 of the dust cup assembly 7 surrounds the outer periphery of the first cover body 31, the top of the cup body 71 is tightly combined with the outer side wall of the first cover body 31, and the spiral air duct 311 is located between the inner side wall of the cup body 71 and the outer side wall of the first cover body 31 to form a vortex guiding path.

[0091] The air flow interface 72 is located on the side wall of the cup body and is arranged corresponding to the starting point of the spiral air duct 311. The air flow interface 72 is hermetically connected to the air flow pipeline of the cleaning device to ensure that the dust-containing air flow can enter the spiral air duct 311. Through the geometric characteristics of the spiral air duct 311, the dust-containing air flow can be induced to form a rotating eddy current, and the separation of large particles can be achieved by using centrifugal force.

[0092] The spiral air duct 311 guides the dust-containing air flow entering from the air flow interface 72 to rotate along a spiral path to form a stable vortex air flow. The vortex air flow can cause large particles to be thrown towards the inner wall of the cup body 71 under the action of centrifugal force, and then settle to the bottom of the cup body 71 under the action of gravity, which can effectively reduce the amount of large particles entering the filter mesh cover 32 and reduce the risk of blockage of the filter mesh cover 32.

[0093] When the cyclone separation device in the present disclosure works, the dust-containing air flow first enters the cyclone separation device through the air flow pipeline of the external cleaning device. The entering air flow is guided from the air flow interface 72 to the inside of the dust cup assembly 7. At this time, under the guidance of the spiral air duct 311, the high-speed air flow can quickly form a rotating eddy current inside the cup body 71. Under the action of centrifugal force, the rotating air flow causes large particles to be thrown towards the inner wall of the cup body 71 and gradually decelerates during the rotation process, and finally settles to the bottom of the cup body 71 due to the action of gravity, completing the primary dust-air separation.

[0094] The airflow after the primary separation by the dust cup assembly 7 still carries large particulate matters that have not been completely separated. This part of the airflow is further guided to the filter mesh cover 32. At this time, the filter mesh cover 32 intercepts and filters the remaining large particulate matters to prevent them from directly entering the cyclone separator 1. The filtered dusty airflow enters the first channel 34 between the dust collection bucket 331 and the filter mesh cover 32, and the airflow enters the second channel 15 along the first channel 34 and is further guided to the intake channel 123.

[0095] Subsequently, the airflow enters the intake space 13 from the intake channel and is guided to the first intake port 112 and the second intake port 122 according to the predetermined streamline layout. Since the inner diameter of the second conical tube 121 is larger than that of the first conical tube 111, and the second intake port 122 is located upstream relative to the first intake port 112, most of the airflow preferentially enters the inside of the second conical tube 121 through the second intake port 122 with less resistance. During this process, the airflow quickly accelerates and rotates to form a high-speed vortex, and a large number of tiny particles are thrown towards the tube wall under the action of centrifugal force and gradually settle along the wall surface into the dust collection bucket 331.

[0096] Meanwhile, the remaining airflow that fails to be captured is guided to the first intake port 112 and enters the first conical tube 111 for cyclone separation. Since the inner diameter of the first conical tube 111 is smaller and the rotational flow rate is higher, this design can capture and settle extremely fine particles more precisely. When the airflow rotates efficiently in the first conical tube 111, the residual particles are strongly thrown towards the tube wall under the drive of centrifugal force and slowly settle to the inside of the dust collection bucket 331 along the rotational path, completing the secondary dust-gas separation.

[0097] Finally, after multi-stage cyclone separation and filtration, the dusty airflow is discharged through the riser pipe 51 at the top and then discharged after being filtered by filter components such as filter Hepa.

[0098] The present disclosure also provides a cleaning device, which includes a main body and the aforementioned cyclone separation device connected to the main body. The main body serves as the power and control core of the cleaning device, and internally integrates basic modules such as a motor, a fan, a battery assembly, and a control circuit, which are used to provide suction drive, energy supply, and system operation control. The cyclone separation device serves as a functional module for dust collection and separation and is connected to the suction port of the main body.

[0099] In summary, the cyclone separator, cyclone separation device, and cleaning equipment provided by the present disclosure adopt a design of an inner and outer double-layer air cone. The inner air cone includes a plurality of first cone tubes, and the outer air cone includes a plurality of second cone tubes surrounding the inner air cone. The inner diameter of the second cone tube is larger than that of the first cone tube, and the second air inlet is located upstream of the first air inlet. This structural design enables the air flow to preferentially flow into the second cone tube with less resistance and a shorter air inlet path when entering the separator, and the remaining air flow enters the first cone tube for cyclone separation, which can optimize the air flow distribution, reduce the risk of local overload, and improve the efficiency and stability of vortex separation.

[0100] For those skilled in the art, it is obvious that the present disclosure is not limited to the details of the above exemplary embodiments, and the present disclosure can be implemented in other specific forms without departing from the spirit or basic characteristics of the present disclosure. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present disclosure is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present disclosure. Any reference signs in the claims should not be regarded as limiting the claimed claim.

[0101] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cyclone separator, characterized in that, Comprising: An inner wind cone, comprising a plurality of first cone tubes, and the first cone tubes have first air inlets; An outer wind cone, comprising a plurality of second cone tubes, and the plurality of second cone tubes are disposed around the outer periphery of the inner wind cone, and the second cone tubes have second air inlets; Wherein, the inner diameter of the second cone tube is greater than that of the first cone tube, and the second air inlet is at least partially located upstream of the first air inlet in the air inlet direction.

2. The cyclone separator according to claim 1, characterized in that, An air inlet space for the airflow to pass through is formed between the inner wind cone and the outer wind cone, and the first air inlet and the second air inlet are located in the air inlet space.

3. The cyclone separator according to claim 2, characterized in that, An air inlet channel communicating with the air inlet space is formed between two adjacent second cone tubes, and the distance between the second air inlet and the air inlet channel is less than the distance between the first air inlet and the air inlet channel.

4. The cyclone separator according to claim 1, wherein The first cone tube includes a first windward wall for guiding the airflow into the first air inlet, and each of the first cone tubes of the inner wind cone is internally tangent to the same outer circle, and the first windward wall extends along the tangent direction of the first cone tube from the position where the first cone tube is tangent to the outer circle.

5. The cyclone separator according to claim 1, characterized in that, The second cone tube includes a second windward wall for guiding the airflow into the second air inlet, and the second windward wall extends towards the center of the outer wind cone along the tangent direction of the second cone tube.

6. The cyclone separator according to claim 5, characterized in that The outer wind cone includes a plurality of wind cone groups, and each wind cone group includes two adjacent second cone tubes, and the second windward walls of the two second cone tubes in the wind cone group extend towards the center of the outer wind cone from the tube walls of the two second cone tubes in the adjacent area.

7. The cyclone separator according to claim 1, wherein, The included angle between the axis of the first cone tube and the axis of the second cone tube is 5-15°.

8. A cyclone separation device, characterized in that, Comprising a housing, a dust bucket assembly, and the cyclone separator according to any one of claims 1-7, the housing is disposed on the top of the dust bucket assembly, and the cyclone separator is disposed inside the housing.

9. The cyclone separation device according to claim 8, wherein, The dust bucket assembly includes a first cover body, a filter mesh cover, and a second cover body, the housing is disposed on the top of the first cover body and communicates with the inner cavity of the first cover body, and the filter mesh cover is disposed between the first cover body and the second cover body.

10. The cyclone separation device according to claim 9, characterized in that, The second cover body includes a dust collection bucket, the dust collection bucket is disposed inside the filter mesh cover and axially extends into the inner cavity of the first cover body, and a first channel for the airflow to pass through is formed between the dust collection bucket and the filter mesh cover and the first cover body.

11. The cyclone separation device according to claim 10, characterized in that, A baffle extending towards the first cover body is disposed around the outer periphery of the outer wind cone, the baffle is hermetically connected to the inner wall of the housing, and a second channel communicating with the first channel is formed between the baffle and the outer wind cone.

12. The cyclone separation device according to claim 10, characterized in that, The outer wind cone includes a mounting seat surrounding the outer periphery of the dust discharge port of the plurality of second cone tubes, the mounting seat is hermetically connected to the barrel wall of the dust collection bucket, and the dust discharge port of the second cone tube communicates with the inner cavity of the dust collection bucket.

13. The cyclone separation device according to claim 12, wherein, The outer wind cone includes a positioning seat disposed between the plurality of second cone tubes, the positioning seat is provided with mounting holes corresponding to the first cone tubes, and the dust discharge ports of the first cone tubes are inserted into the mounting holes and communicate with the inner cavity of the dust collection bucket.

14. The cyclone separation device according to claim 9, wherein, The cyclone separation device further includes a dust cup assembly sleeved on the outer periphery of the dust bucket assembly. The dust cup assembly includes a cup body, and an air flow interface is provided on the cup body, and a dust blocking piece is provided at the air flow interface.

15. The cyclone separation device according to claim 14, wherein, A spiral air duct spirally extending around the axis of the first cover body is provided on the outer side wall of the first cover body, and the air flow interface is arranged corresponding to the starting point of the spiral air duct.

16. The cyclone separation device according to claim 8, wherein, The cyclone separation device further includes a wind cone support, a wind cone upper cover and a wind cone seal. The wind cone support and the wind cone upper cover are fixedly connected to the cyclone separator. The wind cone upper cover covers the top of the cyclone separator, and the wind cone seal is arranged between the wind cone upper cover and the cyclone separator. The wind cone upper cover has a plurality of riser pipes corresponding to the positions of the first cone pipe and the second cone pipe, and the riser pipes extend into the first cone pipe and the second cone pipe.

17. A cleaning device, characterized in that, It includes a main body and the cyclone separation device according to any one of claims 8 to 16 connected to the main body.

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