Dust-air separation device and dust collector

Abstract

The utility model provides a dust-gas separation device. The dust-gas separation device comprises a shell, a first separation part and an air guide structure, a dust collection cavity is formed in the shell. The first separation part divides the dust collection cavity into a first dust collection cavity and a second dust collection cavity which are communicated with each other. According to the dust-air separation device, the dust collection cavities are formed in the shell, the first separation part is arranged to divide the dust collection cavities into the first dust collection cavity and the second dust collection cavity, then the air guide structure is arranged in the second dust collection cavity, and after air flow in the first dust collection cavity enters the second dust collection cavity, the air flow in the second dust collection cavity enters the second dust collection cavity; the air guide structure can guide the advancing direction of the air flow and form a cyclone, the radial size of the second dust collection cavity can be reduced through the arrangement of the air guide structure, and then the size of the whole dust-air separation device can be reduced. When the dust-air separation device is applied to the dust collector, the size of the whole dust collector can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal equipment, and in particular to a dust and gas separation device and a dust collector. Background Art

[0002] As a cleaning device, the working principle of a vacuum cleaner is generally to use a motor to drive the fan to rotate at high speed to form an airflow, thereby forming a negative pressure in the vacuum cleaner shell, so that dust in the environment is sucked into the shell through the air inlet at one end of the shell, and clean air is discharged from the air outlet at the other end of the shell, thereby cleaning the environment.

[0003] However, in order to generate a cyclone inside the dust collecting chamber, the existing vacuum cleaners need to set an air inlet channel inside the dust collecting chamber. The air inlet channel is usually set on the inner wall of the dust collecting chamber or the outer wall of the internal components of the dust collecting chamber. The setting of the air inlet channel will occupy a part of the space of the dust collecting chamber, resulting in a reduction in the dust collecting capacity of the dust collecting chamber. For vacuum cleaners that require a miniaturized design (such as a vehicle-mounted vacuum cleaner), the reduced dust collecting capacity of the dust collecting chamber means that the user needs to perform multiple dust emptying operations, which increases the inconvenience of the operator. Utility Model Content

[0004] The embodiments of the present application propose a dust and gas separation device and a vacuum cleaner to at least partially improve the above technical problems.

[0005] The implementation method of the present application is achieved through the following technical solutions.

[0006] On the one hand, the embodiment of the present application provides a dust and gas separation device, including a shell, a first separation part and an air guide structure. The shell has a dust collecting chamber inside. The first separation part separates the dust collecting chamber into a first dust collecting chamber and a second dust collecting chamber that are interconnected. The air guide structure is arranged in the second dust collecting chamber.

[0007] In some embodiments, the wind guiding structure includes a blocking tube and an wind guiding member, and the wind guiding member is disposed between the blocking tube and the first separation portion.

[0008] In some embodiments, the air guide member is disposed on the blocking tube, the air guide member has a gap, and the gap is connected to the first dust collecting chamber.

[0009] In some embodiments, the air guide member is an air guide blade, and the air guide blade and the first separation portion form the gap;

[0010] Alternatively, the air guide member is a plurality of air guide blades, and the plurality of air guide blades are arranged around the blocking tube at intervals, and the gap is formed between two adjacent air guide blades.

[0011] In some embodiments, the plurality of wind guide blades have the same rotation direction.

[0012] In some embodiments, the air guide has an air inlet side and an air outlet side, the blocking tube has an air inlet end and an air outlet end along its axial direction, the air inlet side of the air guide is close to the air outlet end, and the air outlet side of the air guide is close to the air inlet end.

[0013] In some embodiments, along the axial direction of the blocking cylinder, the air inlet side is higher than the air outlet side.

[0014] In some embodiments, the air guide member has a lowest point along the axial direction of the blocking cylinder, the blocking cylinder has a lowest point along its axial direction, and along the axial direction of the blocking cylinder, the lowest point of the air guide member is higher than the lowest point of the blocking cylinder.

[0015] In some embodiments, the air guide structure is used to change the airflow direction of the dust gas, and the airflow direction has an air inlet direction and an air outlet direction, the air inlet direction is the axial direction of the dust collecting chamber, and the air outlet direction is the circumferential direction of the dust collecting chamber.

[0016] In some embodiments, the shell further has a filter chamber, and the dust and gas separation device further includes a second separation part, and the second separation part separates the inner cavity of the shell into a filter chamber and a dust collecting chamber.

[0017] In some embodiments, the first separation part further includes a filtering structure and a dust collecting structure, and the filtering structure is disposed between the second separation part and the dust collecting structure.

[0018] In some embodiments, the radial dimension of the dust collecting structure gradually decreases in a direction away from the wind guiding structure.

[0019] In some embodiments, the filtering structure is a filter screen having filter holes, and the first dust collecting chamber and the second dust collecting chamber are connected through the filter holes.

[0020] On the other hand, an embodiment of the present application provides a vacuum cleaner, which includes a dust and gas separation device, a driving device and a power supply device as described above, wherein the power supply device is electrically connected to the driving device, and the driving device is connected to the dust and gas separation device.

[0021] The dust and gas separation device provided in the embodiment of the present application is configured by setting a dust collecting chamber in a shell, and setting a first separation portion to separate the dust collecting chamber into a first dust collecting chamber and a second dust collecting chamber, and then setting an air guide structure in the second dust collecting chamber. After the airflow in the first dust collecting chamber passes through and enters the second dust collecting chamber, the air guide structure can guide the direction of the airflow and form a cyclone. The setting of the air guide structure can be beneficial to reducing the radial size of the second dust collecting chamber, and can increase the dust collection utilization rate of the dust collecting chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the implementation mode of the present application, the drawings required for use in the description of the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A structural schematic diagram of a vacuum cleaner provided in one embodiment of the present application is shown.

[0024] Figure 2 Shows Figure 1 Section view along line AA.

[0025] Figure 3 A schematic structural diagram of a dust and gas separation device in a vacuum cleaner provided in one embodiment of the present application is shown.

[0026] Figure 4 Shows Figure 3 Cross-sectional view along line BB.

[0027] Figure 5 A schematic structural diagram of an air guide structure and a first separation portion in a vacuum cleaner provided in one embodiment of the present application is shown.

[0028] Figure 6 A structural schematic diagram of an air guide structure and a first separation part in a vacuum cleaner provided by an embodiment of the present application from another perspective is shown.

[0029] Figure numerals: vacuum cleaner 1, dust and gas separation device 10, shell 100, dust collecting chamber 110, first dust collecting chamber 111, second dust collecting chamber 112, filter chamber 120, filter element 121, air inlet 130, air outlet 140, air inlet pipe 150, shell 160, ash dumping cover 170, drive bin 180, power bin 190, first separation part 200, filter structure 210, filter hole 211, dust collecting structure 220, air guide structure 300, blocking cylinder 310, air inlet end 311, air outlet end 312, air guide member 320, gap 321, air inlet side 322, air outlet side 323, second separation part 400, drive device 500, power supply device 600, controller 700. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is only a part of the implementation mode of the utility model, not all the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

[0032] With the development of science and technology, more and more cleaning equipment have gradually replaced traditional brooms and mops. Among them, vacuum cleaners are a kind of cleaning equipment. Their working principle is generally to use a motor to drive the fan to rotate at high speed to form an airflow, thereby forming a negative pressure in the shell of the vacuum cleaner, so that the dust in the environment is sucked into the shell through the air inlet at one end of the shell, and the clean air is discharged from the air outlet at the other end of the shell, thereby cleaning the environment.

[0033] However, existing vacuum cleaners usually generate cyclones inside the vacuum cleaner to filter and separate dust and gas inside the vacuum cleaner. However, the components used to generate cyclones are usually large in size. For example, it is usually necessary to set up a separate air inlet channel and guide air in the radial direction of the air inlet channel, which will result in a low dust collection utilization rate of the dust collecting chamber.

[0034] Based on the above questions, please refer to Figure 1 The embodiment of the present application provides a vacuum cleaner 1, which can be used to absorb dust and air and separate dust and air, filter out dust, and discharge clean air to achieve a cleaning effect. It can be understood that dust and air refer to a mixture of dust and air, and the embodiment of the present application does not specifically limit dust. For example, powder, particles, etc. are dust in the embodiment of the present application.

[0035] For details, please also refer to Figure 1 and Figure 2 The vacuum cleaner 1 provided in the embodiment of the present application may include: a dust and gas separation device 10, a driving device 500, a power supply device 600 and a controller 700.

[0036] The dust-gas separation device 10 can be used to separate dust and air in dust gas. The dust-gas separation device 10 includes a housing 100, a first separation part 200, and an air guide structure 300. The housing 100 has a dust collecting chamber 110 inside. The housing 100 has an air inlet 130 and an air outlet 140 connected to the dust collecting chamber 110. The air inlet 130 can inhale air, and the air outlet 140 can exhaust air. The first separation part 200 is used to separate the dust collecting chamber 110 into a first dust collecting chamber 111 and a second dust collecting chamber 112 that are connected to each other. The air guide structure 300 is used to make the airflow entering the second dust collecting chamber 112 form a cyclone.

[0037] The embodiment of the present application also does not limit the specific material of the shell 100. In the present embodiment, the shell 100 can be made of materials with high structural strength such as plastic and alloy. This not only protects the air guide structure 300 arranged in the shell 100, but also improves the structural strength of the entire dust and gas separation device 10, thereby preventing the shell 100 from being damaged by collision with the environment during use.

[0038] Furthermore, in one embodiment, the shell 100 may be provided with an air inlet pipe 150. The air inlet pipe 150 may be provided on one side of the dust collecting chamber 110 and communicated with the dust collecting chamber 110. In this embodiment, the air inlet port 130 may be provided on the air inlet pipe 150. The air inlet pipe 150 may facilitate the user to vacuum the external environment. For example, when the place to be vacuumed is relatively narrow, the air inlet pipe 150 may be extended into the place to be vacuumed. The provision of the air inlet pipe 150 is conducive to improving the applicability of the vacuum cleaner 1.

[0039] The embodiments of the present application do not limit the specific structure of the shell 100. For example, in one embodiment, the shell 100 includes: an outer shell 160 and an ash dumping cover 170. The outer shell 160 and the ash dumping cover 170 are connected to form a dust collecting chamber 110.

[0040] The dust separated by the dust and gas separation device 10 falls into the ash dumping cover 170. When the ash dumping cover 170 is opened relative to the housing 160, the dust collected in the ash dumping cover 170 can be dumped out and the ash dumping cover 170 can be cleaned.

[0041] In this embodiment, the dust and gas separation device 10 may further include a second separation part 400, the shell 100 may be configured as a cylindrical structure, the interior of the shell 100 has a dust collecting chamber 110 and a filter chamber 120, the second separation part 400 is disposed inside the shell 100, and is used to separate the inner cavity of the shell 100 into a dust collecting chamber 110 and a filter chamber 120, the dust collecting chamber 110 can be used to collect dust, and the filter chamber 120 can be used to filter air. In this embodiment, a filter element 121 can be disposed in the filter chamber 120.

[0042] The first separation part 200 is disposed in the housing 100, specifically in the dust collecting chamber 110, and is used to separate the dust collecting chamber 110 into a first dust collecting chamber 111 and a second dust collecting chamber 112. It should be noted that the separation here can be understood as separation and separation. The embodiment of the present application does not limit the specific structure of the first separation part 200, for example, it can also be set as a cylindrical structure like the housing 100.

[0043] Specifically, in the present embodiment, the first separation part 200 includes a filtering structure 210 and a dust collecting structure 220, and the filtering structure 210 is arranged between the second separation part 400 and the dust collecting structure 220. The embodiment of the present application does not limit the specific forms of the filtering structure 210 and the dust collecting structure 220. For example, in one embodiment, the filtering structure 210 can be a filter screen, and the filter screen has a filter hole 211, and the first dust collecting chamber 111 and the second dust collecting chamber 112 are connected through the filter hole 211.

[0044] The dust collecting structure 220 can be set to a plate-like structure to prevent dust in the second dust collecting chamber 112 from entering the first dust collecting chamber 111. Specifically, in this embodiment, the radial dimension of the dust collecting structure 220 can gradually decrease in the direction away from the filtering structure 210. That is, in this embodiment, the cross-section of the dust collecting structure 220 can be set to a truncated cone shape.

[0045] The air guide structure 300 is arranged in the second dust collecting chamber 112. Compared with the traditional method of setting an air inlet channel and guiding wind in the radial direction of the air inlet channel to form a cyclone, the air guide structure 300 provided in the embodiment of the present application is smaller in radial size. Therefore, the air guide structure 300 provided in the embodiment of the present application is beneficial to reducing the radial size of the second dust collecting chamber 112, and further beneficial to reducing the size of the dust and gas separation device 10 and the size of the vacuum cleaner 1.

[0046] Please also see Figure 4 and Figure 5 In this embodiment, the air guide structure 300 is used to change the airflow direction of the dust gas. Specifically, the airflow direction has an air inlet direction and an air outlet direction, wherein the air inlet direction is the axial direction of the dust collecting chamber 110 (such as Figure 4 The air outlet direction is the circumferential direction of the dust collecting chamber 110 (eg Figure 5 That is, in this embodiment, the air guide structure 300 can be used to guide the airflow to enter along the axial direction of the dust collecting chamber 110 and to exit along the axial direction of the dust collecting chamber 110 to form a cyclone.

[0047] For details, please also refer to Figure 4-Figure 6The wind guide structure 300 includes a blocking cylinder 310 and an wind guide member 320. The wind guide member 320 is arranged between the blocking cylinder 310 and the first separation portion 200. The blocking cylinder 310 is used to limit the flow direction of the airflow, and the wind guide member 320 is used to guide the flow direction of the airflow. Specifically, in the present embodiment, the blocking cylinder 310 can limit the flow direction of the airflow to flow along the axial direction of the second dust collecting chamber 112, and the wind guide member 320 can guide the airflow to rotate circumferentially around the outer wall of the blocking cylinder 310, for example, it can be in a clockwise direction or in a counterclockwise direction, which is not limited here.

[0048] The embodiments of the present application do not limit the specific structure of the blocking cylinder 310. For example, in the present embodiment, the blocking cylinder 310 can be set to a cylindrical structure, that is, the interior of the blocking cylinder 310 is hollow, and the blocking cylinder 310 has an air inlet end 311 and an air outlet end 312 along its axial direction. It should be noted that the airflow in the second dust collecting chamber 112 can pass through the air inlet end 311 of the blocking cylinder 310 to enter the interior of the blocking cylinder 310, and enter the filter chamber 120 from the air outlet end 312 of the blocking cylinder 310.

[0049] Further, in the present embodiment, the air guide 320 is disposed on the blocking cylinder 310, specifically, one end of the air guide 320 can be connected to the outer wall of the blocking cylinder 310, and the air guide 320 has a gap 321, and the gap 321 is connected to the first dust collecting chamber 111. It should be noted that the above-mentioned gap 321 can be a channel for airflow to flow on the air guide 320, so that the airflow can be guided by the air guide 320. More specifically, in the present embodiment, the gap 321 can be connected to the first dust collecting chamber 111 through the filter hole 211.

[0050] In addition, in one embodiment, the other end can be connected to the inner wall of the first separation part 200, which can improve the stability of the connection between the air guide 320 and the first separation part 200, thereby helping to improve the structural stability of the entire dust and gas separation device 10.

[0051] The embodiment of the present application does not limit the specific structure of the air guide member 320. For example, in one embodiment, the air guide member 320 may be an air guide blade, and the air guide blade may form a gap 321 with the first separation portion 200 for air flow. In another embodiment, the air guide member 320 may be a plurality of air guide blades, and the plurality of air guide blades are arranged around the blocking cylinder 310 at intervals, and a gap 321 may be formed between two adjacent air guide blades for air flow. The air guide member 320 may be specifically arranged according to actual conditions.

[0052] Please continue reading Figure 5 and Figure 6When the air guide member 320 is set to multiple air guide blades, the rotation directions of the multiple air guide blades are the same, that is, the multiple air guide blades can all rotate in a clockwise or counterclockwise direction so that the rotation directions of the cyclones formed after the airflow passes through the air guide member 320 are the same.

[0053] In this embodiment, the air guide member 320 has an air inlet side 322 and an air outlet side 323. The air flow flows into the air guide member 320 from the air inlet side 322 and flows out of the air guide member 320 from the air outlet side 323. The air inlet side 322 of the air guide member 320 is arranged close to the air outlet end 312 of the blocking tube 310, and the air outlet side 323 of the air guide member 320 is arranged close to the air inlet end 311 of the blocking tube 310.

[0054] Furthermore, in one embodiment, along the axial direction of the blocking cylinder 310, the air inlet side 322 is higher than the air outlet side 323, that is, in this embodiment, the angle between the extension direction of the air inlet side 322 and the axial direction of the blocking cylinder 310 is smaller than the angle between the extension direction of the air outlet side 323 and the axial direction of the blocking cylinder 310.

[0055] In a more specific embodiment, the air inlet side 322 can be set along the axial direction of the blocking cylinder 310 and extend toward the filter chamber 120, and the air outlet side 323 can be set in the circumferential direction of the blocking cylinder 310. That is to say, in this embodiment, the extension direction of the air inlet side 322 can be roughly parallel to the axial direction of the blocking cylinder 310, and the angle therebetween can be roughly degrees. The extension direction of the air outlet side 323 can be roughly perpendicular to the axial direction of the blocking cylinder 310, and the angle therebetween can be roughly degrees. The above-mentioned setting of the air guide 320 is conducive to the formation of a cyclone after the airflow is guided by the air guide 320.

[0056] In addition, in the present embodiment, the air guide member 320 has a lowest point along the axial direction of the blocking cylinder 310, and for the convenience of elaboration, this lowest point will be referred to as the first lowest point later. The blocking cylinder 310 also has a lowest point along its axial direction, and for the convenience of distinction, this lowest point will be referred to as the second lowest point later. In the axial direction along the blocking cylinder 310, the lowest point of the air guide member 320 is higher than the lowest point of the blocking cylinder 310, that is to say, the height of the second lowest point is lower than the height of the first lowest point, so that the dust passing through the air guide member 320 can be avoided from directly entering the air inlet end 311 of the blocking cylinder 310 without being separated. The above-mentioned arrangement of the air guide member 320 and the blocking cylinder 310 is conducive to improving the separation effect of the dust gas separation device 10.

[0057] Please refer again Figure 2The driving device 500 is connected to the dust and gas separation device 10. The driving device 500 can drive the dust and gas to flow from the air inlet 130 toward the air outlet 140. In this embodiment, the driving device 500 can be arranged on the side of the collecting device close to the air outlet 140. The driving device 500 is a fan. The driving device 500 generates an airflow from the air inlet 130 to the air outlet 140 to achieve the effect of absorbing dust and gas.

[0058] The power supply device 600 is electrically connected to the driving device 500. Further, in this embodiment, the vacuum cleaner 1 may also include a controller 700, which may be disposed on one side of the power supply device 600, so that the wiring length between the controller 700 and the power supply device 600 can be reduced. The controller 700 is electrically connected to the power supply device 600, and the controller 700 is used to control the driving device 500 to work, so that the driving device 500 generates an airflow from the air inlet 130 to the air outlet 140.

[0059] The embodiment of the present application does not limit the specific form of the power supply device 600. For example, it can be a rechargeable battery or a disposable battery, etc., and the specific form can be selected according to actual conditions.

[0060] In this embodiment, the shell 100 also has a drive compartment 180 and a power supply compartment 190. The drive compartment 180 and the power supply compartment 190 can be arranged on the side away from the filter chamber 120. The drive compartment 180 is connected to the filter chamber 120, the drive device 500 is arranged in the drive compartment 180, and the power supply device 600 is arranged in the power supply compartment 190.

[0061] The working principle of the vacuum cleaner 1 provided in the embodiment of the present application is as follows:

[0062] The driving device 500 can generate airflow under the power supply of the power supply device 600, so that the air inlet 130 can absorb dust from the outside. When the dust enters the first dust collecting chamber 111 from the air inlet 130, the dust with a higher density can be collected by the first dust collecting chamber 111, and the dust with a lower density enters the second dust collecting chamber 112 through the filter hole 211 and is collected by the second dust collecting chamber 112. Specifically, the dust can form an external cyclone in the first dust collecting chamber 111, and the dust can form an internal cyclone in the second dust collecting chamber 112. The dust-containing airflow generates a large centrifugal force during the rotation process. Since the inertia of dust is much greater than that of air, dust particles with a density greater than that of air are thrown toward the inner wall of the first dust collecting chamber 111 or the inner wall of the second dust collecting chamber 112. Once the dust contacts the inner wall of the first dust collecting chamber 111 or the inner wall of the second dust collecting chamber 112, it loses its inertial force and falls into the dust dumping cover 170 along the wall of the first dust collecting chamber 111 or the second dust collecting chamber 112 under the action of gravity, so as to achieve dust and gas separation. When the dust storage in the dust collecting chamber 110 is too much, the user can open the dust dumping cover 170 and dump the dust in the dust collecting chamber 110.

[0063] The dust and gas separation device 10 provided in the embodiment of the present application is provided with a dust collecting chamber 110 in the housing 100, and a first separation portion 200 is provided to separate the dust collecting chamber 110 into a first dust collecting chamber 111 and a second dust collecting chamber 112, and then a wind guide structure 300 is provided in the second dust collecting chamber 112. After the airflow in the first dust collecting chamber 111 passes through and enters the second dust collecting chamber 112, the wind guide structure 300 can guide the direction of the airflow and form a cyclone. The provision of the wind guide structure 300 can help reduce the radial size of the second dust collecting chamber 112, thereby helping to reduce the size of the entire dust and gas separation device 10. When the dust and gas separation device 10 described above is applied to a vacuum cleaner 1, it is also helpful to reduce the size of the entire vacuum cleaner 1.

[0064] In this utility model, unless otherwise clearly specified or limited, the terms "installation", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection, or a transmission connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0065] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present utility model, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present utility model and the features of different embodiments or examples without contradiction.

[0066] The above implementation modes are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned implementation modes, a person skilled in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various implementation modes of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A dust and gas separation device, characterized in that: include: A housing having a dust collecting chamber therein; a first separation portion, which separates the dust collecting chamber into a first dust collecting chamber and a second dust collecting chamber which are interconnected; as well as The air guiding structure is arranged in the second dust collecting chamber.

2. The dust and gas separation device according to claim 1, characterized in that: The wind guiding structure includes a blocking tube and a wind guiding member, and the wind guiding member is arranged between the blocking tube and the first separation portion.

3. The dust-gas separation device according to claim 2, characterized in that: The air guide member is arranged on the blocking cylinder, and the air guide member has a gap, and the gap is communicated with the first dust collecting chamber.

4. The dust and gas separation device according to claim 3, characterized in that: The wind guide member is an wind guide blade, and the wind guide blade and the first separation portion form the gap; Alternatively, the air guide member is a plurality of air guide blades, and the plurality of air guide blades are arranged around the blocking tube at intervals, and the gap is formed between two adjacent air guide blades.

5. The dust and gas separation device according to claim 4, characterized in that: The plurality of wind guide blades have the same rotation direction.

6. The dust and gas separation device according to claim 2, characterized in that: The air guide has an air inlet side and an air outlet side, the blocking tube has an air inlet end and an air outlet end along its axial direction, the air inlet side of the air guide is close to the air outlet end, and the air outlet side of the air guide is close to the air inlet end.

7. The dust and gas separation device according to claim 6, characterized in that: Along the axial direction of the blocking cylinder, the air inlet side is higher than the air outlet side.

8. The dust and gas separation device according to claim 2, characterized in that: The air guide member has a lowest point along the axial direction of the blocking cylinder, and the blocking cylinder has a lowest point along its axial direction. Along the axial direction of the blocking cylinder, the lowest point of the air guide member is higher than the lowest point of the blocking cylinder.

9. The dust and gas separation device according to claim 1, characterized in that: The air guide structure is used to change the airflow direction of the dust gas, and the airflow direction has an air inlet direction and an air outlet direction. The air inlet direction is the axial direction of the dust collecting chamber, and the air outlet direction is the circumferential direction of the dust collecting chamber.

10. The dust and gas separation device according to claim 1, characterized in that: The shell further comprises a filter chamber, and the dust and gas separation device further comprises a second separation part, which separates the inner chamber of the shell into a filter chamber and a dust collecting chamber.

11. The dust and gas separation device according to claim 10, characterized in that: The first separation part further includes a filtering structure and a dust collecting structure, and the filtering structure is arranged between the second separation part and the dust collecting structure.

12. The dust and gas separation device according to claim 11, characterized in that: The radial dimension of the dust collecting structure gradually decreases in a direction away from the wind guiding structure.

13. The dust and gas separation device according to claim 11, characterized in that: The filtering structure is a filter screen having filter holes, and the first dust collecting chamber and the second dust collecting chamber are connected through the filter holes.

14. A vacuum cleaner, characterized in that: include: The dust and gas separation device according to any one of claims 1 to 13; Drive device; as well as A power supply device is electrically connected to the driving device, and the driving device is connected to the dust and gas separation device.

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