Air duct structure, cleaning device and dust collector

Abstract

The present application relates to a kind of air duct structure, cleaning equipment and dust collector, dust collector includes cleaning equipment, cleaning equipment includes air duct structure, air duct structure, including: separation mechanism, cover and air outlet component;Separation mechanism is equipped with separation air duct, cover is connected with separation mechanism, and cover is equipped with the installation cavity that is communicated with separation air duct, installation cavity is used to install suction fan;Air outlet component is connected with cover, and air outlet component is formed with the air outlet air duct that is communicated with installation cavity with cover cooperation;Or air outlet component is connected with cover, air outlet component is equipped with the air outlet air duct that is communicated with installation cavity;Wherein, separation mechanism, cover and air outlet component are integrated into one structure.The air duct structure described above, since separation mechanism, cover and air outlet component are integrated into one structure, separation mechanism, cover and air outlet component can be assembled together into the shell of dust collector, facilitate assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust collectors, in particular to a wind channel structure, a cleaning device and a dust collector. BACKGROUND

[0002] At present, most of the traditional dust collectors have a cyclone separation mechanism, an air extractor, a machine cover and an air outlet structure. The cyclone separation mechanism is used for air-dust separation, the air extractor is used for sucking air into the dust collector, the machine cover is used for installing the air extractor, and the air outlet structure is used for discharging air discharged from the air extractor to the outside. After the outside air is sucked into the dust collector, it first passes through the cyclone separation mechanism, then enters the air extractor after air-dust separation in the cyclone separation mechanism, and finally is discharged to the outside through the air outlet structure at the rear end of the air extractor. In this type of dust collector, the separation mechanism, the machine cover and the air outlet structure are separated, and the separation mechanism, the machine cover and the air outlet structure need to be fixed with the dust collector shell respectively. In the assembly process, there are many processes and it is inconvenient to assemble. SUMMARY

[0003] Therefore, it is necessary to provide a wind channel structure, a cleaning device and a dust collector which are convenient to assemble.

[0004] The technical scheme is as follows:

[0005] A wind channel structure comprises a separation mechanism, a machine cover and an air outlet component.

[0006] The separation mechanism is provided with a separation wind channel, the machine cover is connected with the separation mechanism, and the machine cover is provided with a mounting cavity in communication with the separation wind channel, and the mounting cavity is used for mounting an air extractor.

[0007] The air outlet component is connected with the machine cover, and the air outlet component and the machine cover cooperatively form an air outlet wind channel in communication with the mounting cavity; or the air outlet component is connected with the machine cover, and the air outlet component is provided with an air outlet wind channel in communication with the mounting cavity.

[0008] The separation mechanism, the machine cover and the air outlet component are integrated into an integrated structure.

[0009] In the above-mentioned wind channel structure, when the air extractor is working, the airflow from the outside first enters the separation wind channel under the action of the air extractor, then is separated from dust in the separation wind channel, and then enters the air extractor mounted in the mounting cavity. After being discharged from the air extractor, the airflow continues to be discharged to the outside through the air outlet wind channel. In the above-mentioned wind channel structure, since the separation mechanism, the machine cover and the air outlet component are integrated into an integrated structure, the separation mechanism, the machine cover and the air outlet component can be assembled together into the shell of the dust collector. Compared with the separation mechanism, the machine cover and the air outlet component being separate parts, the assembly process can be reduced and the assembly is facilitated.

[0010] The technical solutions are further described below.

[0011] In one of the embodiments, the air outlet duct has a first air inlet and a first air outlet, the first air inlet is communicated with the installation cavity, the air outlet duct comprises an air outlet section, the air outlet section has the first air outlet, and the air outlet section extends in the anti-gravity direction from one end close to the first air inlet to one end having the first air outlet.

[0012] Or the air outlet duct has a first air inlet and a first air outlet, the first air inlet is communicated with the installation cavity, the air outlet duct comprises an air outlet section, the air outlet section has the first air outlet, and the air outlet section extends in the horizontal direction from one end close to the first air inlet to one end having the first air outlet.

[0013] In one of the embodiments, the air outlet duct has a first air inlet and a first air outlet, the first air inlet is communicated with the installation cavity, and the air outlet duct extends in the anti-gravity direction from one end having the first air inlet to one end having the first air outlet.

[0014] Or the air outlet duct has a first air inlet and a first air outlet, the first air inlet is communicated with the installation cavity, and the air outlet duct extends in the horizontal direction from one end having the first air inlet to one end having the first air outlet.

[0015] In one of the embodiments, the separating mechanism comprises a plurality of separating pieces, the plurality of separating pieces are arranged in a ring structure, the separating duct comprises a sub-separating duct arranged in each of the separating pieces, and the machine cover is arranged in the middle of the ring structure.

[0016] In one of the embodiments, each of the separating pieces is connected with the machine cover through a connecting rib.

[0017] In one of the embodiments, the machine cover has a second air inlet communicated with the installation cavity, the second air inlet is communicated with the separating duct, the side wall of the second air inlet forms a wind guide structure, and the wind guide structure is used for guiding the airflow from the separating duct into the air extractor.

[0018] In one of the embodiments, the second air inlet comprises a first end away from the installation cavity and a second end close to the installation cavity, and the side wall of the second air inlet gradually approaches the axis of the second air inlet from the first end to the second end.

[0019] In one of the embodiments, the side wall of the second air inlet is arc-shaped.

[0020] In one of the embodiments, the air outlet component is arranged outside the housing and connected with the housing, and the air outlet component cooperates with the side wall of the housing to form the air outlet air duct.

[0021] In one of the embodiments, the air exhaust end of the air extractor is located at the side of the air extractor, and the side wall of the housing avoids the air exhaust end of the air extractor when the air extractor is arranged in the mounting cavity.

[0022] In one of the embodiments, the air outlet component comprises a first limiting part for limiting the rear filter used for filtering the airflow from the air outlet air duct.

[0023] In one of the embodiments, the air outlet component comprises a mounting table, and the first limiting part is a limiting protrusion arranged on the mounting table.

[0024] In one of the embodiments, the housing is provided with a second limiting part for limiting the front filter used for filtering the airflow from the separation air duct.

[0025] In one of the embodiments, the mounting cavity has a limiting wall, the air extractor is arranged in the mounting cavity and spaced opposite to the limiting wall, and the air extractor cooperates with the limiting wall to form a limiting structure for limiting the first sound insulation part.

[0026] The technical solution also provides a cleaning device, which comprises the air duct structure as described above and an air extractor arranged in the mounting cavity, wherein the air exhaust end of the air extractor is communicated with the separation air duct, and the air exhaust end of the air extractor is communicated with the air outlet air duct.

[0027] In the cleaning device, when the air extractor works, the airflow from the outside enters the separation air duct under the action of the air extractor, and then enters the air extractor arranged in the mounting cavity, and is discharged from the air extractor and then discharged to the outside through the air outlet air duct. In the air duct structure, the separation mechanism, the housing and the air outlet component are integrated into an integrated structure, and the separation mechanism, the housing and the air outlet component can be assembled together into the shell of the dust collector, thereby reducing the assembly process and facilitating the assembly.

[0028] In one of the embodiments, the cleaning device further comprises a first sound insulation part, the mounting cavity has a limiting wall, the air extractor is arranged in the mounting cavity and spaced opposite to the limiting wall, and the air extractor cooperates with the limiting wall to form a limiting structure for limiting the first sound insulation part.

[0029] In one of the embodiments, the cleaning device further comprises a dust collecting member, which is connected with the air duct structure, and is provided with a dust collecting cavity communicated with the separating air duct.

[0030] In one of the embodiments, the cleaning device further comprises a sealing member, which is connected with the cover, the separating mechanism and the dust collecting member, the separating air duct is further provided with a dust outlet communicated with the dust collecting cavity, and the sealing member is used to prevent the dirty material in the separating air duct from entering into the mounting cavity through the dust outlet.

[0031] In one of the embodiments, the cleaning device further comprises a second soundproof member, the dust collecting member is arranged opposite to the air suction machine, and a noise reduction space is formed between the dust collecting member and the air suction machine, and the second soundproof member is arranged in the noise reduction space.

[0032] In one of the embodiments, the cleaning device further comprises a rear filter, the air outlet component comprises a first limiting part used to limit the rear filter, and the rear filter is used to filter the air flow from the air outlet air duct.

[0033] In one of the embodiments, the cleaning device further comprises a front filter, the cover is provided with a second limiting part used to limit the front filter, and the front filter is used to filter the air flow from the separating air duct.

[0034] The technical solution further provides a dust collector comprising the cleaning device.

[0035] In the dust collector, when the air suction machine works, the air flow from outside enters into the separating air duct under the action of the air suction machine, and then enters into the air suction machine mounted in the mounting cavity, and is discharged from the air suction machine and then discharged to outside through the air outlet air duct. In the air duct structure, the separating mechanism, the cover and the air outlet component are integrated into an integral structure, and the separating mechanism, the cover and the air outlet component can be assembled into the shell of the dust collector together, so that the assembly process is reduced and the assembly is facilitated compared with the case that the separating mechanism, the cover and the air outlet component are separate parts. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 Structure diagram of the air duct structure in one of the embodiments of the present application Figure 1 ;

[0037] Figure 2 Structure diagram of the air duct structure in one of the embodiments of the present application Figure 2 ;

[0038] Figure 3This is a top view of the air duct structure in one embodiment of the present invention;

[0039] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the air duct structure along the AA direction.

[0040] Figure 5 This is a cross-sectional view of a cleaning device according to an embodiment of the present invention.

[0041] Explanation of reference numerals in the attached figures:

[0042] 10. Duct structure; 100. Separation mechanism; 110. Separation component; 111. Sub-separation duct; 112. Third air inlet; 113. Dust outlet; 114. Third air outlet; 120. Connecting rib; 200. Cover; 210. Mounting cavity; 220. Second limiting part; 230. Second air inlet; 231. Side wall of the first air inlet; 300. Air outlet component; 310. Air outlet duct; 311. First air inlet; 312. First air outlet; 320. Mounting platform; 330. First limiting part; 400. Fixing column; 20. Exhaust fan; 30. First silencer; 40. Second silencer; 50. Dust collection component; 60. Pre-filter; 70. Post-filter; 80. Exhaust pipe; 90. Sealing component. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] The "first", "second" in the present application do not represent the specific number and order, but only for the name of the distinction.

[0047] As Figure 1 , 2 , 5, an embodiment of the air duct structure 10, comprising a separation mechanism 100, cover 200 and air outlet component 300. Separation mechanism 100 for air dust separation, cover 200 for installing the air exhaust fan 20 can be able to suck into the air duct structure 10, air outlet structure for air exhaust fan 20 discharged to the outside.

[0048] Specifically, the separation mechanism 100 is provided with a separation air duct; cover 200 and separation mechanism 100 is connected, and the cover 200 is provided with the installation cavity 210 communicated with the separation air duct, the installation cavity 210 is used for installing the air exhaust fan 20; air outlet component 300 and cover 200 are connected, and air outlet component 300 and cover 200 cooperate to form the air outlet air duct 310 communicated with the installation cavity 210, or air outlet component 300 and cover 200 are connected, and air outlet component 300 is provided with the air outlet air duct 310 communicated with the installation cavity 210; wherein, the separation mechanism 100, cover 200 and air outlet component 300 are integrated into an integrated structure.

[0049] Among them, the separation mechanism 100, cover 200 and air outlet component 300 are integrated into an integrated structure, that is, the separation mechanism 100, cover 200 and air outlet component 300 are connected together, which can be assembled together into the shell of the dust collector, without the need to assemble the separation mechanism 100, cover 200 and air outlet component 300 into the shell of the dust collector respectively.

[0050] Optionally, the separation mechanism 100, cover 200 and air outlet component 300 can be an integrated structure, and the separation mechanism 100, cover 200 and air outlet component 300 can also be connected into an integrated structure by a connecting piece.

[0051] The above-mentioned air duct structure 10, when the air exhaust fan 20 works, the airflow of the outside first enters into the separation air duct under the action of the air exhaust fan 20, and then enters into the air exhaust fan 20 installed in the installation cavity 210, and then continues to be discharged to the outside through the air outlet air duct 310. In the above-mentioned air duct structure 10, since the separation mechanism 100, cover 200 and air outlet component 300 are integrated into an integrated structure, the separation mechanism 100, cover 200 and air outlet component 300 can be assembled together into the shell of the dust collector, compared with the separation mechanism 100, cover 200 and air outlet component 300 being dispersed parts, which can reduce the assembly process and facilitate assembly.

[0052] As Figure 4As shown, in one embodiment, the air outlet duct 310 has a first air inlet 311 and a first air outlet 312. The first air inlet 311 communicates with the mounting cavity 210. The air outlet duct 310 includes an air outlet section with a first air outlet 312. The air outlet section extends from one end near the first air inlet 311 to the end with the first air outlet 312 in the direction against gravity. This allows the airflow within the air outlet section to move in the direction against gravity. When the airflow leaves the air outlet duct 310 from the first air outlet 312, the airflow will not blow towards the ground, preventing the airflow from scattering dust on the ground and improving the user experience.

[0053] The air outlet section refers to the section of the air duct 310 near the first air outlet 312.

[0054] In another embodiment, the entire air outlet duct 310 extends in the opposite direction to gravity from the end with the first air inlet 311 to the end with the first air outlet 312. This allows the airflow within the entire air outlet duct 310 to move in the opposite direction to gravity, and when the airflow leaves the air outlet duct 310 from the first air outlet 312, the airflow will not blow towards the ground, preventing the airflow from scattering dust on the ground and improving the user experience.

[0055] In another embodiment, the air outlet duct 310 has a first air inlet 311 and a first air outlet 312. The first air inlet 311 communicates with the mounting cavity 210. The air outlet duct 310 includes an air outlet section with a first air outlet 312. The air outlet section extends horizontally from one end near the first air inlet 311 to the end with the first air outlet 312. This allows the airflow within the air outlet section to move horizontally. When the airflow leaves the air outlet duct 310 from the first air outlet 312, the airflow will not blow towards the ground, preventing the airflow from scattering dust on the ground and improving the user experience.

[0056] In another embodiment, the entire air outlet duct 310 extends horizontally from the end with the first air inlet 311 to the end with the first air outlet 312. This allows the airflow within the entire air outlet duct 310 to move horizontally, and when the airflow leaves the air outlet duct 310 from the first air outlet 312, the airflow will not blow towards the ground, preventing the airflow from scattering dust on the ground and improving the user experience.

[0057] like Figure 4 As shown, in one embodiment, the air outlet component 300 is disposed on the outside of the housing 200 and connected to the housing 200. The air outlet component 300 and the side wall of the housing 200 cooperate to form an air outlet duct 310. By using the housing 200 and the air outlet component 300 to form the air outlet duct 310, the structure of the device can be simplified.

[0058] Specifically, the hood 200 and the air outlet component 300 are integrally formed, the air outlet component 300 is located outside the hood 200 and connected to the outer wall of the hood 200, and the inner wall of the air outlet component 300 cooperates with the outer wall of the hood 200 to form the air outlet air duct 310.

[0059] As shown in Figure 5 , further, the air suction fan 20 is arranged in the installation cavity 210, the air exhaust end of the air suction fan 20 is located at the side of the air suction fan 20, and the side wall of the hood 200 avoids the air exhaust end of the air suction fan 20. The air flow from the air suction fan 20 enters the air outlet air duct 310 from the side of the hood 200, which meets the air exhaust requirement of the air suction fan 20 with the air exhaust end at the side of the air suction fan 20.

[0060] As shown in Figure 1 , Figure 5 , in one embodiment, the air outlet component 300 further comprises a first limiting portion 330 for limiting the rear filter 70, and the rear filter 70 is used for filtering the air flow from the air outlet air duct 310. The first limiting portion 330 is arranged on the air outlet component 300, and the first limiting portion 330 can limit the rear filter 70, thereby achieving the installation of the rear filter 70. After the air flow from the air outlet air duct 310 is filtered by the rear filter 70, the air flow discharged from the air duct structure 10 to the outside is more clean.

[0061] Specifically, the air outlet component 300 comprises a mounting table 320, and the first limiting portion 330 is a limiting protrusion arranged on the mounting table 320. The limiting protrusion is used for limiting the outer periphery of the rear filter 70.

[0062] As shown in Figure 1 , Figure 4 , Figure 5 , more specifically, the rear filter 70 is a cylindrical Hepa filter, the mounting table 320 is located at the first air outlet 312, and the mounting table 320 extends away from the first air outlet 312, and the limiting protrusion is an annular rib arranged on the mounting table 320 and used for limiting the rear filter 70.

[0063] As shown in Figures 1-2 , in one embodiment, the separation mechanism 100 comprises a plurality of separation pieces 110 arranged in a ring structure, the separation air duct comprises a sub-separation air duct 111 arranged in each separation piece 110, and the hood 200 is arranged in the middle of the ring structure.

[0064] Specifically, the separating pieces 110 are cyclone separating cones, each of which is provided with a sub-separating air duct 111, and the plurality of separating pieces 110 are arranged in a non-closed ring structure, and the cover 200 is arranged in the middle of the ring structure, so that the middle space of the ring structure can be effectively utilized, and the occupied space of the entire air duct structure 10 is reduced.

[0065] More specifically, each of the separating pieces 110 is connected with the cover 200 through the connecting ribs 120. The separating pieces 110 and the cover 200 are manufactured by an integral molding process, and the separating pieces 110 and the cover 200 are connected through the connecting ribs 120, which is convenient for manufacturing, and the separating pieces 110 and the cover 200 do not need to be connected through connecting pieces, which simplifies the assembly procedure.

[0066] As shown in the drawings, Figure 4 In one of the embodiments, the cover 200 is provided with a second air inlet 230 which is in communication with the mounting cavity 210, and the second air inlet 230 is in communication with the separating air duct. The side wall of the second air inlet 230 forms a wind guide structure which is used to guide the airflow from the separating air duct into the air extractor 20. After the airflow from the separating air duct, it enters the air extractor 20 under the action of the side wall of the second air inlet 230, which can reduce the air resistance of the airflow in the cleaner, so that the airflow can enter the air extractor 20 more quickly, and the air extraction efficiency of the air extractor 20 is improved.

[0067] Specifically, the second air inlet 230 includes a first end which is away from the mounting cavity 210, and a second end which is close to the mounting cavity 210, and the side wall of the second air inlet 230 gradually approaches the axis of the second air inlet 230 from the first end to the second end. In this way, the side wall of the second air inlet 230 forms a wind guide structure, and the inner diameter of the second air inlet 230 gradually decreases from the first end to the second end, so that the airflow from the separating air duct can enter the air extractor 20 more quickly under the action of the side wall of the second air inlet 230.

[0068] More specifically, the side wall of the second air inlet 230 is arc-shaped. In other embodiments, the side wall of the second air inlet 230 can also be an inclined plane.

[0069] As shown in the drawings, Figure 1 , Figure 5 In one of the embodiments, the cover 200 is further provided with a second limiting part 220 which is used to limit the front filter 60, and the front filter 60 is used to filter the airflow from the separating air duct. By providing the second limiting part 220 on the cover 200, the second limiting part 220 can limit the front filter 60, so as to realize the installation of the front filter 60, so that the airflow from the separating air duct is filtered by the front filter 60, and the airflow discharged into the air extractor 20 is more clean, which avoids the pollution and damage of the air extractor 20.

[0070] Specifically, the pre-filter 60 is a cylindrical HEPA filter, and the second limiting part 220 is annular, and the inner circumferential side of the pre-filter 60 is in limiting cooperation with the second limiting part 220.

[0071] As shown in Figure 5 one of the embodiments, the mounting cavity 210 has a limiting wall, the air extractor 20 is arranged in the mounting cavity 210 and is opposite to the limiting wall with a space, and the air extractor 20 and the limiting wall cooperate to form a limiting structure for limiting the first sound insulation part 30. After the air extractor 20 is arranged in the mounting cavity 210, there is a space between the air extractor 20 and the limiting wall for mounting the first sound insulation part 30, and the air extractor 20 and the limiting wall are used to abut against the first sound insulation part 30 to limit the first sound insulation part 30.

[0072] Specifically, the limiting wall is an inner wall of the mounting cavity 210, and the first sound insulation part 30 is a sealing ring. On one hand, the sealing ring can seal the gap between the air extractor 20 and the limiting wall to avoid the airflow from the separation air duct passing through the gap. On the other hand, the sealing ring can also play a role in reducing the vibration of the air extractor 20 to reduce the noise emitted by the air extractor 20.

[0073] As shown in Figures 4-5 one of the embodiments, the mounting cavity 210 has a limiting wall, the air extractor 20 is arranged in the mounting cavity 210 and is opposite to the limiting wall with a space, and the air extractor 20 and the limiting wall cooperate to form a limiting structure for limiting the first sound insulation part 30. After the air extractor 20 is arranged in the mounting cavity 210, there is a space between the air extractor 20 and the limiting wall for mounting the first sound insulation part 30, and the air extractor 20 and the limiting wall are used to abut against the first sound insulation part 30 to limit the first sound insulation part 30.

[0074] The above-mentioned cleaning equipment can be applied to a dust collector. When the air extractor 20 is working, the external airflow first enters the separation air duct under the action of the air extractor 20, is separated from dust in the separation air duct, then enters the air extractor 20 arranged in the mounting cavity 210, is discharged from the air extractor 20, and then continues to be discharged to the outside through the air outlet duct 310. In the above-mentioned air duct structure 10, the separation mechanism 100, the casing 200 and the air outlet component 300 are integrated into an integrated structure, and the separation mechanism 100, the casing 200 and the air outlet component 300 can be assembled together into the shell of the dust collector. Compared with the separation mechanism 100, the casing 200 and the air outlet component 300 being separate parts, the assembly process can be reduced, and the assembly is facilitated.

[0075] In one of the embodiments, the cleaning equipment further comprises the first sound insulation part 30, the mounting cavity 210 has a limiting wall, the air extractor 20 is arranged in the mounting cavity 210 and is opposite to the limiting wall with a space, and the air extractor 20 and the limiting wall cooperate to form a limiting structure for limiting the first sound insulation part. After the air extractor 20 is arranged in the mounting cavity 210, there is a space between the air extractor 20 and the limiting wall for mounting the first sound insulation part 30, and the air extractor 20 and the limiting wall are used to abut against the first sound insulation part 30 to limit the first sound insulation part 30.

[0076] Specifically, the limiting wall is an inner wall of the installation cavity 210, and the first sound-damping member is a sealing ring. The sealing ring can seal the gap between the exhaust fan 20 and the limiting wall on one hand, so as to avoid the airflow from the separation air duct passing through the gap. On the other hand, the sealing ring can also play a role of reducing the vibration of the exhaust fan 20, so as to reduce the noise generated by the exhaust fan 20.

[0077] In one of the embodiments, the cleaning device further comprises a dust collecting member 50 connected with the air duct structure 10. The dust collecting member 50 is provided with a dust collecting cavity in communication with the separation air duct. The airflow is used to realize the separation of dust and dirt in the separation air duct, and the separated dust and dirt fall into the dust collecting cavity for centralized cleaning.

[0078] As shown in Figure 2 , Figure 5 , specifically, the separation mechanism 100 comprises a plurality of separation members 110 arranged in a ring shape. The dust collecting member 50 is arranged opposite to the separation mechanism 100. The dust outlet 113 of each separation member 110 extends into the dust collecting cavity, so that the dirt and dust in each separation member 110 can fall into the dust collecting cavity.

[0079] Further, the cleaning device further comprises a sealing member 90 connected with the machine cover 200, the separation mechanism 100 and the dust collecting member 50. The sealing member 90 is used to prevent the dirt and dust in the separation air duct from entering the machine cover 200 from the dust outlet 113.

[0080] Specifically, the sealing member 90 is a sealing gasket. The dust collecting member 50 is further provided with a dust inlet in communication with the dust collecting cavity. The dust outlet 113 of the separation mechanism 100 is inserted into the dust collecting cavity through the dust inlet. The sealing gasket is arranged at the end of the dust inlet and is sealingly connected with the outer side of the separation mechanism 100. The sealing gasket is also abutted with the machine cover 200.

[0081] As shown in Figure 1 , Figure 5 , further, the separation mechanism 100 is further provided with a fixing column 400. The fixing column 400 is connected with the dust collecting member 50 by bolts.

[0082] In one of the embodiments, the cleaning device further comprises a second sound-damping member 40. The dust collecting member 50 is arranged opposite to the exhaust fan 20. A noise reduction space is formed between the dust collecting member 50 and the exhaust fan 20. The second sound-damping member 40 is arranged in the noise reduction space. The second sound-damping member 40 is used to absorb the noise generated by the exhaust fan 20, so as to play a role of noise reduction.

[0083] Specifically, the hood 200 is arranged in the middle of the annular structure formed by the plurality of dust collecting members 50, and the air extractor 20 is arranged in the mounting cavity 210 of the hood 200. By arranging the air extractor 20 opposite to the dust collecting members 50, a larger space is left between the air extractor 20 and the dust collecting members 50 for arranging the second sound absorbing member 40, thereby improving the noise condition.

[0084] Optionally, the second sound absorbing member 40 is sound absorbing cotton.

[0085] As shown in the drawings, Figure 5 In one of the embodiments, the cleaning device further comprises an exhaust pipe 80 inserted into the air outlet of the separating member 110, and the exhaust pipe 80 is used to prevent dust particles from passing through the air outlet of the separating member 110.

[0086] As shown in the drawings, Figure 1 , Figure 5 In one of the embodiments, the cleaning device further comprises a rear filter 70, and the air outlet component 300 further comprises a first limiting portion 330 for limiting the rear filter 70. The rear filter 70 is used to filter the air flow from the air outlet duct 310. The first limiting portion 330 is arranged on the air outlet component 300 and can limit the rear filter 70, thereby achieving the installation of the rear filter 70. After the air flow from the air outlet duct 310 is filtered by the rear filter 70, the air flow discharged from the air duct structure 10 to the outside is more clean.

[0087] Specifically, the air outlet component 300 comprises a mounting table 320, and the first limiting portion 330 is a limiting protrusion arranged on the mounting table 320. The limiting protrusion is used to limit the outer periphery of the rear filter 70.

[0088] As shown in the drawings, Figure 1 , Figure 4 , Figure 5 More specifically, the rear filter 70 is a cylindrical Hepa filter, the mounting table 320 is located at the first air outlet 312 and extends away from the first air outlet 312, and the limiting protrusion is an annular rib arranged on the mounting table 320 and used to limit the rear filter 70.

[0089] As shown in the drawings, Figure 1 , Figure 5As shown, in one of the embodiments, the cleaning device further comprises a pre-filter 60, and the housing 200 is further provided with a second limiting portion 220 for limiting the pre-filter 60, and the pre-filter 60 is used for filtering the airflow from the separation air duct. By providing the second limiting portion 220 on the housing 200, the second limiting portion 220 can limit the pre-filter 60, so as to realize the installation of the pre-filter 60, so that the airflow from the separation air duct is filtered by the pre-filter 60, so that the airflow discharged into the air extractor 20 is more clean, and the air extractor 20 is prevented from being polluted and damaged.

[0090] Specifically, the pre-filter 60 is a cylindrical HEPA filter, and the second limiting portion 220 is annular, and the inner circumferential side of the pre-filter 60 is limited and matched with the second limiting portion 220.

[0091] As shown in Figure 4 , Figure 5 , in the above cleaning device, when the air extractor 20 works, the airflow from the outside enters into the sub-separation air duct 111 through the third air inlet 112 of the separation piece 110, then passes through the pre-filter 60 through the third air outlet 114 of the separation piece 110, and then enters into the air extractor 20, and then passes through the air outlet air duct 310 after being discharged from the air extractor 20, and finally is discharged to the outside after passing through the post-filter 60.

[0092] As shown in Figure 2 , Figure 5 , one embodiment further relates to a dust collector comprising the above cleaning device.

[0093] The above cleaning device can be applied to a dust collector. When the air extractor 20 works, the airflow from the outside first enters into the separation air duct under the action of the air extractor 20, and then enters into the air extractor 20 installed in the mounting cavity 210 after air-dust separation in the separation air duct, and then continues to be discharged to the outside through the air outlet air duct 310 after being discharged from the air extractor 20. In the above air duct structure 10, since the separation mechanism 100, the housing 200 and the air outlet component 300 are integrated into an integral structure, the separation mechanism 100, the housing 200 and the air outlet component 300 can be assembled together into the shell of the dust collector, and compared with the separation mechanism 100, the housing 200 and the air outlet component 300 being dispersed parts, the assembly process can be reduced, and the assembly is facilitated.

[0094] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0095] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A duct structure, characterized in that, include: Separation mechanism, hood, and air outlet components; The separation mechanism is provided with a separation air duct, the cover is connected to the separation mechanism, and the cover is provided with a mounting cavity communicating with the separation air duct, the mounting cavity being used to install an exhaust fan; The air outlet component is connected to the housing, and the air outlet component and the housing cooperate to form an air outlet duct communicating with the mounting cavity; or the air outlet component is connected to the housing, and the air outlet component is provided with an air outlet duct communicating with the mounting cavity. The separation mechanism, the shroud, and the air outlet component are integrated into a single structure. The separation mechanism includes multiple separation components arranged in a ring structure. The separation air duct includes a sub-separation air duct opened in each of the separation components. The cover is located in the middle of the ring structure. The shroud has a second air inlet communicating with the mounting cavity. The second air inlet is also communicating with the separation duct. The sidewall of the second air inlet forms a guide structure for guiding the airflow from the separation duct into the exhaust fan. The second air inlet includes a first end away from the mounting cavity and a second end close to the mounting cavity. The sidewall of the second air inlet gradually approaches the axis of the second air inlet from the first end to the second end.

2. The air duct structure according to claim 1, characterized in that, The air outlet duct has a first air inlet and a first air outlet. The first air inlet is connected to the mounting cavity. The air outlet duct includes an air outlet section. The air outlet section has the first air outlet. The air outlet section extends from one end near the first air inlet to the end with the first air outlet along the direction of the opposite gravity. Alternatively, the air outlet duct may have a first air inlet and a first air outlet, the first air inlet being connected to the mounting cavity, the air outlet duct including an air outlet section having the first air outlet, the air outlet section extending horizontally from one end near the first air inlet to the end having the first air outlet.

3. The air duct structure according to claim 1, characterized in that, The air outlet duct has a first air inlet and a first air outlet. The first air inlet is connected to the mounting cavity. The air outlet duct extends from the end with the first air inlet to the end with the first air outlet along the direction of the opposite gravity. Alternatively, the air outlet duct may have a first air inlet and a first air outlet, the first air inlet being connected to the mounting cavity, and the air outlet duct extending horizontally from the end having the first air inlet to the end having the first air outlet.

4. The air duct structure according to claim 1, characterized in that, Each of the separated components is connected to the housing via a connecting rib.

5. The air duct structure according to claim 1, characterized in that, The sidewall of the second air inlet is curved.

6. The air duct structure according to claim 1, characterized in that, The air outlet component is located on the outside of the housing and connected to the housing. The air outlet component cooperates with the side wall of the housing to form the air outlet duct.

7. The air duct structure according to claim 1, characterized in that, The exhaust end of the exhaust fan is located on the side of the exhaust fan. When the exhaust fan is installed in the mounting cavity, the side wall of the cover avoids the exhaust end of the exhaust fan.

8. The air duct structure according to claim 1, characterized in that, The air outlet component includes a first limiting part for limiting the position of the post-filter, which is used to filter the airflow coming out of the air outlet duct.

9. The air duct structure according to claim 8, characterized in that, The air outlet component includes a mounting platform, and the first limiting part is a limiting protrusion disposed on the mounting platform.

10. The air duct structure according to claim 1, characterized in that, The hood is provided with a second limiting part for limiting the position of the pre-filter, which is used to filter the airflow coming out of the separation duct.

11. The air duct structure according to claim 1, characterized in that, The mounting cavity has a limiting wall, and the exhaust fan is disposed in the mounting cavity and spaced apart from the limiting wall. The exhaust fan and the limiting wall cooperate to form a limiting structure for limiting the first silencer.

12. A cleaning device, characterized in that, include: The air duct structure as described in any one of claims 1-11 above; and An exhaust fan is provided, which is installed in the mounting cavity, and the exhaust end of the exhaust fan is connected to the separation air duct, and the exhaust end of the exhaust fan is connected to the air outlet duct.

13. The cleaning equipment according to claim 12, characterized in that, It also includes a first silencing component, the mounting cavity has a limiting wall, the exhaust fan is disposed in the mounting cavity and is spaced apart from the limiting wall, the exhaust fan and the limiting wall cooperate to form a limiting structure for the first silencing component.

14. The cleaning equipment according to claim 12, characterized in that, It also includes a dust collection component, which is connected to the air duct structure and has a dust collection chamber that communicates with the separation air duct.

15. The cleaning equipment according to claim 14, characterized in that, It also includes a sealing element, which is connected to the housing, the separation mechanism and the dust collection element. The separation duct also has a dust outlet communicating with the dust collection chamber. The sealing element is used to prevent dirt and grime in the separation duct from entering the mounting cavity from the dust outlet.

16. The cleaning equipment according to claim 14, characterized in that, It also includes a second silencing component, wherein the dust collection component is disposed opposite to the exhaust fan, and a noise reduction space is formed between the dust collection component and the exhaust fan, and the second silencing component is disposed in the noise reduction space.

17. The cleaning equipment according to claim 12, characterized in that, It also includes a post-filter, and the air outlet component includes a first limiting part for limiting the post-filter, which is used to filter the airflow coming out of the air outlet duct.

18. The cleaning equipment according to claim 12, characterized in that, It also includes a pre-filter, and the shroud is provided with a second limiting part for limiting the pre-filter, which is used to filter the airflow coming out of the separation duct.

19. A vacuum cleaner, characterized in that, Includes the cleaning equipment described in any one of claims 12-18 above.

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