阅读说明：本技术 风道结构、清洁设备及吸尘器 (Air duct structure, cleaning equipment and dust collector ) 是由 李锦坤 于 2019-12-09 设计创作，主要内容包括：本发明涉及一种风道结构、清洁设备及吸尘器,吸尘器包括清洁设备,清洁设备包括风道结构,风道结构,包括：分离机构、机罩以及出风部件；分离机构设有分离风道,机罩与分离机构连接,且机罩设有与分离风道连通的安装腔,安装腔用于安装抽风机；出风部件与机罩连接,且出风部件与机罩配合形成有与安装腔连通的出风风道；或出风部件与机罩连接,出风部件设有与安装腔连通的出风风道；其中,分离机构、机罩以及出风部件集成为一体结构。上述的风道结构中,由于分离机构、机罩以及出风部件集成为一体结构,分离机构、机罩以及出风部件可以一起装配到吸尘器的外壳内,方便装配。(The invention relates to an air duct structure, cleaning equipment and a dust collector, wherein the dust collector comprises the cleaning equipment, the cleaning equipment comprises the air duct structure, and the air duct structure comprises: the separation mechanism, the hood and the air outlet component; the separating mechanism is provided with a separating air duct, the hood is connected with the separating mechanism, the hood is provided with an installation cavity communicated with the separating air duct, and the installation cavity is used for installing an exhaust fan; the air outlet component is connected with the hood, and an air outlet duct communicated with the mounting cavity is formed by matching the air outlet component with the hood; or the air outlet component is connected with the hood and is provided with an air outlet duct communicated with the mounting cavity; wherein, separating mechanism, aircraft bonnet and air-out part are integrated structure as an organic whole. In foretell wind channel structure, because separating mechanism, aircraft bonnet and air-out part are integrated structure as an organic whole, separating mechanism, aircraft bonnet and air-out part can assemble the shell of dust catcher together in, convenient assembly.)

1. An air duct structure, comprising: the separation mechanism, the hood and the air outlet component;

the separation mechanism is provided with a separation air channel, the hood is connected with the separation mechanism, the hood is provided with an installation cavity communicated with the separation air channel, and the installation cavity is used for installing an exhaust fan;

the air outlet component is connected with the hood, and an air outlet duct communicated with the mounting cavity is formed by matching the air outlet component with the hood; or the air outlet component is connected with the hood and is provided with an air outlet duct communicated with the mounting cavity;

wherein, the separating mechanism, the hood and the air outlet part are integrated into an integral structure.

2. The air duct structure according to claim 1, wherein 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 includes an air outlet section, the air outlet section has the first air outlet, and the air outlet section extends along a counter-gravity direction from an end close to the first air inlet to an end having the first air outlet;

or the air outlet duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, the air outlet duct comprises an air outlet section, the air outlet section is provided with the first air outlet, and the air outlet section extends along the horizontal direction from one end close to the first air inlet to one end with the first air outlet.

3. The air duct structure according to claim 1, wherein the air outlet duct has a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, and the air outlet duct extends along a counter-gravity direction from an end having the first air inlet to an end having the first air outlet;

or the air outlet duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, and the air outlet duct extends along the horizontal direction from one end with the first air inlet to one end with the first air outlet.

4. The air duct structure according to claim 1, wherein the separating mechanism includes a plurality of separating members arranged in an annular structure, the separating air duct includes a sub-separating air duct provided to each separating member, and the hood is provided in a middle portion of the annular structure.

5. The air duct structure according to claim 4, wherein each of the separating members is connected to the hood by a connecting rib.

6. The air duct structure according to claim 1, wherein the hood has a second air inlet communicating with the installation cavity, the second air inlet communicating with the separation air duct, and a side wall of the second air inlet forms an air guiding structure for guiding the air flow coming out of the separation air duct into the suction fan.

7. The air duct structure according to claim 6, wherein the second air inlet includes a first end far away from the mounting cavity and a second end close to the mounting cavity, and a side wall of the second air inlet gradually gets closer to an axis of the second air inlet from the first end to the second end.

8. The air duct structure according to claim 7, wherein the side wall of the second air inlet is arc-shaped.

9. The air duct structure according to claim 1, wherein the air outlet member is disposed outside and connected to a hood, and the air outlet member cooperates with a sidewall of the hood to form the air outlet duct.

10. The air duct structure according to claim 1, wherein the exhaust end of the exhaust fan is located at a side portion of the exhaust fan, and the side wall of the hood avoids the exhaust end of the exhaust fan when the exhaust fan is disposed in the installation cavity.

11. The air duct structure according to claim 1, wherein the air outlet member includes a first limiting portion for limiting a post-filter, and the post-filter is configured to filter an air flow exiting from the air outlet duct.

12. The air duct structure according to claim 11, wherein the air outlet member includes a mounting table, and the first limiting portion is a limiting protrusion provided on the mounting table.

13. The air duct structure according to claim 1, wherein the hood is provided with a second stopper portion for stopping a pre-filter for filtering the air flow coming out of the separation air duct.

14. The air duct structure according to claim 1, wherein the mounting cavity has a limiting wall, the suction fan is disposed in the mounting cavity and is spaced from and opposite to the limiting wall, and the suction fan and the limiting wall cooperate to form a limiting structure for limiting the first silencing element.

15. A cleaning apparatus, comprising:

an air duct structure as claimed in any one of claims 1 to 14; and

the air exhauster, the air exhauster set up in the installation intracavity, just the convulsions end of air exhauster with the separation wind channel intercommunication, the end of airing exhaust of air exhauster with air-out wind channel intercommunication.

16. The cleaning apparatus defined in claim 15, further comprising a first sound reduction element, wherein the mounting cavity has a limiting wall, the suction fan is disposed in the mounting cavity and spaced apart from and opposite to the limiting wall, and the suction fan and the limiting wall cooperate to form a structure for limiting the first sound reduction element.

17. The cleaning apparatus defined in claim 15, further comprising a dust collection member connected to the air duct structure, the dust collection member having a dust collection chamber in communication with the separation air duct.

18. The cleaning apparatus as recited in claim 17, further comprising a seal connected to said hood, said separating mechanism and said dirt collecting member, said separating duct further having a dirt outlet communicating with said dirt collection chamber, said seal for preventing dirt material in said separating duct from entering said mounting chamber through said dirt outlet.

19. The cleaning apparatus defined in claim 17, further comprising a second silencer, the dust collector being disposed opposite the suction fan and defining a noise reduction space therebetween, the second silencer being disposed in the noise reduction space.

20. The cleaning device of claim 15, further comprising a rear filter, wherein the air outlet component comprises a first limiting portion for limiting the rear filter, and the rear filter is used for filtering the airflow coming out of the air outlet duct.

21. The cleaning apparatus defined in claim 15, further comprising a pre-filter, the hood being provided with a second restraining portion for restraining the pre-filter, the pre-filter being for filtering the airflow exiting the separation duct.

22. A vacuum cleaner comprising a cleaning appliance as claimed in any one of claims 15 to 21.

Technical Field

The invention relates to the technical field of dust collectors, in particular to an air duct structure, cleaning equipment and a dust collector.

Background

At present, most of the traditional dust collectors are provided with a cyclone separation mechanism, an exhaust fan, a hood and an air outlet structure; the cyclone separation mechanism is used for carrying out air-dust separation, and the air exhauster is used for in the air suction dust catcher, and the aircraft bonnet is used for installing the air exhauster, and the air-out structure is used for discharging the air from the air exhauster exhaust to the external world. After being sucked into the dust collector, the outside air firstly passes through the cyclone separation mechanism, is subjected to air-dust separation in the cyclone separation mechanism and then enters the exhaust fan, and is finally discharged to the outside from the rear end of the exhaust fan through the air outlet structure. In this kind of dust catcher, separating mechanism, aircraft bonnet and air-out structure are separated, and separating mechanism, aircraft bonnet and air-out structure need be fixed with the dust catcher shell respectively, and in the assembling process, the process is more, and the assembly is inconvenient.

Disclosure of Invention

Therefore, an air duct structure, a cleaning device and a dust collector which are convenient to assemble are needed.

The technical scheme is as follows:

an air duct structure comprising: the separation mechanism, the hood and the air outlet component;

the separation mechanism is provided with a separation air channel, the hood is connected with the separation mechanism, the hood is provided with an installation cavity communicated with the separation air channel, and the installation cavity is used for installing an exhaust fan;

the air outlet component is connected with the hood, and an air outlet duct communicated with the mounting cavity is formed by matching the air outlet component with the hood; or the air outlet component is connected with the hood and is provided with an air outlet duct communicated with the mounting cavity;

wherein, the separating mechanism, the hood and the air outlet part are integrated into an integral structure.

In the air channel structure, when the exhaust fan works, external air flow firstly enters the separation air channel under the action of the exhaust fan, is subjected to air-dust separation in the separation air channel, then enters the exhaust fan arranged in the installation cavity, and is discharged to the outside through the air outlet air channel after being discharged by the exhaust fan. Among the foretell wind channel structure, because separating mechanism, aircraft bonnet and the integrated body structure of air-out part, separating mechanism, aircraft bonnet and air-out part can assemble the shell of dust catcher together in, compare in separating mechanism, aircraft bonnet and air-out part for the part of mutual dispersion, can reduce the assembly process, convenient assembly.

The technical solution is further explained below:

in one embodiment, 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 includes an air outlet section, the air outlet section has the first air outlet, and the air outlet section extends along a counter-gravity direction from one end close to the first air inlet to one end with the first air outlet;

or the air outlet duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, the air outlet duct comprises an air outlet section, the air outlet section is provided with the first air outlet, and the air outlet section extends along the horizontal direction from one end close to the first air inlet to one end with the first air outlet.

In one embodiment, 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 along a counter-gravity direction from one end with the first air inlet to one end with the first air outlet;

or the air outlet duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the mounting cavity, and the air outlet duct extends along the horizontal direction from one end with the first air inlet to one end with the first air outlet.

In one embodiment, the separating mechanism includes a plurality of separating members arranged in an annular structure, the separating duct includes a sub-separating duct provided in each separating member, and the hood is provided in a middle portion of the annular structure.

In one embodiment, each of the separate pieces is connected to the hood by a connecting rib.

In one embodiment, the hood has a second air inlet communicated with the installation cavity, the second air inlet is communicated with the separation air duct, and a side wall of the second air inlet forms a wind guiding structure for guiding the air flow coming out of the separation air duct into the exhaust fan.

In one embodiment, the second air inlet comprises a first end far away from the installation cavity and a second end close to the installation cavity, and the side wall of the second air inlet gradually gets closer to the axis of the second air inlet from the first end to the second end.

In one embodiment, the side wall of the second air inlet is arc-shaped.

In one embodiment, the air outlet component is arranged on the outer side of the hood and connected with the hood, and the air outlet component and the side wall of the hood are matched to form the air outlet duct.

In one embodiment, the exhaust end of the exhaust fan is located at the side part of the exhaust fan, and when the exhaust fan is arranged in the installation cavity, the side wall of the hood avoids the exhaust end of the exhaust fan.

In one embodiment, the air outlet component comprises a first limiting part for limiting a rear filter, and the rear filter is used for filtering the airflow coming out of the air outlet duct.

In one embodiment, the air outlet component comprises an installation platform, and the first limiting part is a limiting protrusion arranged on the installation platform.

In one embodiment, the hood is provided with a second limiting portion for limiting a pre-filter for filtering the air flow coming out of the separation duct.

In one embodiment, the mounting cavity is provided with a limiting wall, the exhaust fan is arranged in the mounting cavity and is opposite to the limiting wall at a spacing, and the exhaust fan and the limiting wall are matched to form a limiting structure for limiting the first silencing part.

This technical scheme still provides a cleaning device, includes: the air duct structure as described above; and the exhaust fan is arranged in the installation cavity, the exhaust end of the exhaust fan is communicated with the separation air channel, and the exhaust end of the exhaust fan is communicated with the air outlet channel.

In the cleaning equipment, when the exhaust fan works, the outside air flow firstly enters the separation air channel under the action of the exhaust fan, is subjected to air-dust separation in the separation air channel, then enters the exhaust fan arranged in the installation cavity, and is discharged to the outside through the air outlet air channel after being discharged by the exhaust fan. Among the foretell wind channel structure, because separating mechanism, aircraft bonnet and the integrated body structure of air-out part, separating mechanism, aircraft bonnet and air-out part can assemble the shell of dust catcher together in, compare in separating mechanism, aircraft bonnet and air-out part for the part of mutual dispersion, can reduce the assembly process, convenient assembly.

In one embodiment, the cleaning device further comprises a first silencing piece, the mounting cavity is provided with a limiting wall, the exhaust fan is arranged in the mounting cavity and is opposite to the limiting wall at intervals, and the exhaust fan and the limiting wall are matched to form a structure for limiting the first silencing piece.

In one embodiment, the cleaning device further comprises a dust collecting member connected with the air duct structure, and the dust collecting member is provided with a dust collecting cavity communicated with the separation air duct.

In one embodiment, the cleaning device further includes a sealing member connected to the hood, the separating mechanism and the dust collecting member, the separating air duct further has a dust outlet communicated with the dust collecting chamber, and the sealing member is configured to prevent the dirt in the separating air duct from entering the mounting chamber through the dust outlet.

In one embodiment, the cleaning device further comprises a second silencing piece, the dust collecting piece is arranged opposite to the exhaust fan, a noise reduction space is formed between the dust collecting piece and the exhaust fan, and the second silencing piece is arranged in the noise reduction space.

In one embodiment, the cleaning device further comprises a rear filter, the air outlet component comprises a first limiting portion used for limiting the rear filter, and the rear filter is used for filtering airflow coming out of the air outlet duct.

In one embodiment, the cleaning device further comprises a pre-filter, and the hood is provided with a second limiting part for limiting the pre-filter, and the pre-filter is used for filtering the airflow coming out of the separation air duct.

The technical scheme also provides a dust collector which comprises the cleaning equipment.

In the dust collector, when the exhaust fan works, external air flow firstly enters the separation air channel under the action of the exhaust fan, is subjected to air-dust separation in the separation air channel, then enters the exhaust fan arranged in the installation cavity, and is discharged to the outside through the air outlet channel after being discharged by the exhaust fan. Among the foretell wind channel structure, because separating mechanism, aircraft bonnet and the integrated body structure of air-out part, separating mechanism, aircraft bonnet and air-out part can assemble the shell of dust catcher together in, compare in separating mechanism, aircraft bonnet and air-out part for the part of mutual dispersion, can reduce the assembly process, convenient assembly.

Drawings

Fig. 1 is a first schematic structural diagram of an air duct structure according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of an air duct structure according to an embodiment of the present invention;

FIG. 3 is a schematic top view of an air duct structure according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of the air duct structure shown in FIG. 3 taken along the direction A-A;

fig. 5 is a schematic cross-sectional structural view of a cleaning apparatus according to an embodiment of the present invention.

Description of reference numerals:

10. the air duct structure comprises an air duct structure 100, a separating mechanism 110, a separating piece 111, a sub-separating air duct 112, a third air inlet 113, a dust outlet 114, a third air outlet 120, a connecting rib 200, a hood 210, an installation cavity 220, a second limiting portion 230, a second air inlet 231, a side wall of the first air inlet 300, an air outlet part 310, an air outlet duct 311, a first air inlet 312, a first air outlet 320, an installation platform 330, a first limiting portion 400, a fixing column 20, an exhaust fan 30, a first silencing piece 40, a second silencing piece 50, a dust collecting piece 60, a front filter 70, a rear filter 80, an exhaust pipe 90 and a sealing piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, 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 belongs. 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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1, 2 and 5, an embodiment of the air duct structure 10 includes a separating mechanism 100, a hood 200 and an air outlet 300. The separating mechanism 100 is used for air-dust separation, the hood 200 is used for installing the exhaust fan 20 capable of drawing air into the air duct structure 10, and the air outlet structure is used for discharging air discharged from the exhaust fan 20 to the outside.

Specifically, the separation mechanism 100 is provided with a separation air duct; the hood 200 is connected with the separating mechanism 100, the hood 200 is provided with an installation cavity 210 communicated with the separating air channel, and the installation cavity 210 is used for installing the exhaust fan 20; the air outlet component 300 is connected with the hood 200, an air outlet duct 310 communicated with the installation cavity 210 is formed by matching the air outlet component 300 and the hood 200, or the air outlet component 300 is connected with the hood 200, and the air outlet component 300 is provided with the air outlet duct 310 communicated with the installation cavity 210; wherein the separating mechanism 100, the hood 200 and the wind discharging part 300 are integrated into an integral structure.

The separation mechanism 100, the hood 200 and the air outlet component 300 are integrated into a whole, that is, the separation mechanism 100, the hood 200 and the air outlet component 300 are connected with each other and can be assembled in the housing of the dust collector, without respectively assembling the separation mechanism 100, the hood 200 and the air outlet component 300 in the housing of the dust collector.

Alternatively, the separating mechanism 100, the hood 200 and the air outlet member 300 may be integrally formed, and the separating mechanism 100, the hood 200 and the air outlet member 300 may also be connected to form an integral structure by a connecting member.

In the air duct structure 10, when the exhaust fan 20 works, the external air flow firstly enters the separation air duct under the action of the exhaust fan 20, is subjected to air-dust separation in the separation air duct, then enters the exhaust fan 20 installed in the installation cavity 210, and is discharged from the exhaust fan 20 and then continuously discharged to the outside through the air outlet duct 310. In the air duct structure 10, since the separating mechanism 100, the hood 200 and the air outlet component 300 are integrated, the separating mechanism 100, the hood 200 and the air outlet component 300 can be assembled in the housing of the vacuum cleaner together, and compared with the separating mechanism 100, the hood 200 and the air outlet component 300 which are mutually dispersed parts, the assembling processes can be reduced, and the assembly is convenient.

As shown in fig. 4, 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 is communicated with the mounting cavity 210, the air outlet duct 310 includes an air outlet section, the air outlet section has the first air outlet 312, and the air outlet section extends along a counter-gravity direction from an end close to the first air inlet 311 to an end having the first air outlet 312. So, can make the air current in the air-out section move along against the gravity direction, when the air current left air-out wind channel 310 from first air outlet 312, the air current can not blow to ground, avoids the air current to blow away subaerial dust, promotes user experience and feels.

The air outlet section is a section of the air outlet duct 310 near the first air outlet 312.

In another embodiment, the entire air outlet duct 310 extends from the end with the first air inlet 311 to the end with the first air outlet 312 along the anti-gravity direction. So, can make the air current in whole air-out wind channel 310 remove along the anti-gravity direction, when the air current left air-out wind channel 310 from first air outlet 312, the air current can not blow to ground, avoids the air current to blow away subaerial dust, promotes user experience and feels.

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 is communicated with the mounting cavity 210, the air outlet duct 310 includes an air outlet section, the air outlet section has a first air outlet 312, and the air outlet section extends along a horizontal direction from an end close to the first air inlet 311 to an end having the first air outlet 312. So, can make the air current in the air-out section remove along the horizontal direction, when the air current left air-out wind channel 310 from first air outlet 312, the air current can not blow to ground, avoids the air current to blow away subaerial dust, promotes user experience and feels.

In another embodiment, the entire outlet duct 310 extends horizontally from the end with the first inlet 311 to the end with the first outlet 312. So, can make the air current in whole air-out wind channel 310 remove along the horizontal direction, when the air current left air-out wind channel 310 from first air outlet 312, the air current can not blow to ground, avoids the air current to blow away subaerial dust, promotes user experience and feels.

As shown in fig. 4, in one embodiment, the air outlet member 300 is disposed outside the hood 200 and connected to the hood 200, and the air outlet member 300 cooperates with the sidewall of the hood 200 to form an air outlet duct 310. The hood 200 and the air outlet member 300 form the air outlet duct 310, which can simplify the structure of the device.

Specifically, the hood 200 and the air outlet component 300 are of an integrally formed structure, the air outlet component 300 is located on the outer side of the hood 200 and connected with the outer wall of the hood 200, and the inner wall of the air outlet component 300 and the outer wall of the hood 200 are matched to form an air outlet duct 310.

As shown in fig. 5, the suction fan 20 is installed in the installation cavity 210, the exhaust end of the suction fan 20 is located at the side of the suction fan 20, and the sidewall of the hood 200 avoids the exhaust end of the suction fan 20. The air flow coming out from the exhaust fan 20 enters the air outlet duct 310 from the side of the hood 200, and the air exhaust requirement of the exhaust fan 20 with the air exhaust end at the side of the exhaust fan 20 is met.

As shown in fig. 1 and 5, in one embodiment, the air outlet component 300 further includes a first limiting portion 330 for limiting the position of the post filter 70, and the post filter 70 is used for filtering the air flow coming out of the air outlet duct 310. Be equipped with first spacing portion 330 on air-out component 300, first spacing portion 330 can carry on spacingly to rearmounted filter 70 to realize rearmounted filter 70's installation, make the air current from air-out wind channel 310 come out the back filtered by rearmounted filter 70, make the air current of discharging to the external world from wind channel structure 10 cleaner.

Specifically, the air outlet member 300 includes a mounting platform 320, and the first limiting portion 330 is a limiting protrusion disposed on the mounting platform 320. The position-restricting protrusion serves to restrict the outer circumference of the post-filter 70.

As shown in fig. 1, 4, and 5, more specifically, the post-filter 70 is a cylindrical hepa filter, the mounting platform 320 is located at the first air outlet 312, the mounting platform 320 extends in a direction away from the first air outlet 312, and the limiting protrusion is an annular rib disposed on the mounting platform 320 and used for limiting the position of the post-filter 70.

As shown in fig. 1-2, in one embodiment, the separating mechanism 100 includes a plurality of separating members 110, the separating members 110 are arranged in a ring structure, the separating air duct includes a sub-separating air duct 111 opened in each separating member 110, and the hood 200 is disposed in the middle of the ring structure.

Specifically, the separating element 110 is a cyclone separating cone, each separating element 110 is internally provided with a sub-separating air duct 111, the separating elements 110 are arranged in a non-closed annular structure, and the hood 200 is arranged in the middle of the annular structure, so that the middle space of the annular structure can be effectively utilized, and the occupied space of the whole air duct structure 10 is reduced.

More specifically, each of the separating members 110 is connected to the hood 200 by the connecting rib 120. The separating piece 110 and the hood 200 are manufactured by adopting an integral forming process, the separating piece 110 and the hood 200 are connected through the connecting rib 120, the manufacturing is convenient, and the separating piece 110 and the hood 200 are not required to be connected through a connecting piece, so that the assembling procedure is simplified.

As shown in fig. 4, in one embodiment, the hood 200 has a second air inlet 230 communicating with the installation cavity 210, the second air inlet 230 communicates with the separation air duct, and the side wall of the second air inlet 230 forms a wind guiding structure for guiding the air flow coming out from the separation air duct into the suction fan 20. After the air flow comes out from the separation air duct, the air flow enters the exhaust fan 20 under the action of the side wall of the second air inlet 230, so that the wind resistance of the air flow in the dust collector can be reduced, the air flow can enter the exhaust fan 20 more quickly, and the air draft efficiency of the exhaust fan 20 is improved.

Specifically, the second air inlet 230 includes a first end far away from the installation cavity 210 and a second end close to the installation cavity 210, and a sidewall of the second air inlet 230 gradually converges toward an 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 an air guiding structure, and the inner diameter of the second air inlet 230 gradually decreases from the first end to the second end, so that the air flow coming out of the separation air duct enters the suction fan 20 more quickly under the action of the side wall of the second air inlet 230.

More specifically, the side wall of the second intake vent 230 is arc-shaped. In other embodiments, the sidewall of the second intake vent 230 may also be an inclined plane.

As shown in fig. 1 and 5, in one embodiment, the hood 200 further has a second limiting portion 220 for limiting the pre-filter 60, and the pre-filter 60 is used for filtering the airflow coming out of the separation duct. Through set up spacing portion 220 of second on aircraft bonnet 200, spacing portion 220 of second can carry on spacingly to leading filter 60 to realize leading filter 60's installation, make the air current from separating the wind channel come out the back and filtered by leading filter 60, make the air current of discharging into in air exhauster 20 cleaner, avoid air exhauster 20 to be polluted and damage.

Specifically, the pre-filter 60 is a cylindrical hypa filter, the second limiting portion 220 is annular, and the inner peripheral side of the pre-filter 60 is in limiting fit with the second limiting portion 220.

As shown in fig. 5, in one embodiment, the mounting cavity 210 has a limiting wall, the suction fan 20 is disposed in the mounting cavity 210 and is spaced from and opposite to the limiting wall, and the suction fan 20 and the limiting wall cooperate to form a limiting structure for limiting the first silencing element 30. After the exhaust fan 20 is disposed in the mounting cavity 210, a space for mounting the first silencing element 30 is left between the exhaust fan 20 and the limiting wall, and the exhaust fan 20 and the limiting wall are used for abutting against the first silencing element 30 to limit the first silencing element 30.

Specifically, spacing wall is the inner wall of installation cavity 210, and first amortization piece 30 is the sealing washer, and the sealing washer can seal the clearance between air exhauster 20 and the spacing wall on the one hand, avoids passing through this clearance from the air current that the separation wind channel came, and on the other hand, the sealing washer can also play and carry out the effect of damping to air exhauster 20, reduces the noise that air exhauster 20 sent.

As shown in fig. 4-5, an embodiment further relates to a cleaning device, which includes the air duct structure 10 and the exhaust fan 20, the exhaust fan 20 is disposed in the installation cavity 210, the air exhaust end of the exhaust fan 20 is communicated with the separation air duct, and the air exhaust end of the exhaust fan 20 is communicated with the air outlet air duct 310.

When the exhaust fan 20 is operated, the external air flow firstly enters the separation air duct under the action of the exhaust fan 20, is subjected to air-dust separation in the separation air duct, then enters the exhaust fan 20 installed in the installation cavity 210, and is discharged from the exhaust fan 20 and then continuously discharged to the outside through the air outlet duct 310. In the air duct structure 10, since the separating mechanism 100, the hood 200 and the air outlet component 300 are integrated, the separating mechanism 100, the hood 200 and the air outlet component 300 can be assembled in the housing of the vacuum cleaner together, and compared with the separating mechanism 100, the hood 200 and the air outlet component 300 which are mutually dispersed parts, the assembling processes can be reduced, and the assembly is convenient.

In one embodiment, the cleaning device further comprises a first silencing element 30, the mounting cavity 210 has a limiting wall, the suction fan 20 is arranged in the mounting cavity 210 and is opposite to the limiting wall at a spacing, and the suction fan 20 and the limiting wall are matched to form a structure for limiting the first silencing element. After the exhaust fan 20 is disposed in the mounting cavity 210, a space for mounting the first silencing element 30 is left between the exhaust fan 20 and the limiting wall, and the exhaust fan 20 and the limiting wall are used for abutting against the first silencing element 30 to limit the first silencing element 30.

Specifically, spacing wall is the inner wall of installation cavity 210, and first amortization spare is the sealing washer, and the sealing washer can seal the clearance between air exhauster 20 and the spacing wall on the one hand, avoids passing through this clearance from the air current that the separation wind channel came, and on the other hand, the sealing washer can also play and carry out the effect of damping to air exhauster 20, reduces the noise that air exhauster 20 sent.

In one embodiment, the cleaning device further comprises a dust collecting member 50, the dust collecting member 50 being connected to the air duct structure 10, the dust collecting member 50 being provided with a dust collecting chamber communicating with the separate air duct. The air flow is used for realizing air-dust separation in the separation air duct, and the separated dirt substances such as dust fall into the dust collection cavity so as to be cleaned in a centralized manner.

As shown in fig. 2 and 5, in particular, the separating mechanism 100 includes a plurality of separating members 110 arranged in a ring shape, the dust collecting member 50 is disposed opposite to the separating mechanism 100, and the dust outlet 113 of each separating member 110 extends into the dust collecting cavity, so that the dirt in each separating member 110 can fall into the dust collecting cavity.

Further, the cleaning apparatus further includes a sealing member 90, the sealing member 90 is connected to the hood 200, the separating mechanism 100 and the dust collecting member 50, and the sealing member 90 prevents the dirt in the separating duct from entering the hood 200 through the dust outlet 113.

Specifically, the sealing member 90 is a sealing gasket, the dust collecting member 50 is further provided with a dust inlet communicated with the dust collecting cavity, the dust outlet 113 of the separating 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 in sealing connection with the outer side of the separating mechanism 100, and the sealing gasket is further abutted against the hood 200.

As shown in fig. 1 and 5, the separating mechanism 100 is further provided with a fixing post 400, and the fixing post 400 is connected to the dust collecting element 50 by a bolt.

In one embodiment, the cleaning device further comprises a second noise reduction member 40, the dust collection member 50 is disposed opposite to the suction fan 20, a noise reduction space is formed between the dust collection member 50 and the suction fan 20, and the second noise reduction member 40 is disposed in the noise reduction space. The second muffler 40 is used to absorb noise generated by the suction fan 20 and reduce noise.

Specifically, the hood 200 is disposed in the middle of the ring structure formed by the plurality of dust collecting members 50, and the suction fan 20 is disposed in the mounting cavity 210 of the hood 200, so that the suction fan 20 and the dust collecting members 50 are disposed opposite to each other, and in this manner, a large space is left between the suction fan 20 and the dust collecting members 50 for disposing the second noise reduction member 40, thereby improving the noise.

Optionally, the second sound attenuating element 40 is sound attenuating cotton.

As shown in fig. 5, in one embodiment, the cleaning apparatus further includes an exhaust pipe 80, the exhaust pipe 80 is inserted into the air outlet of the separating member 110, and the exhaust pipe 80 is used for preventing dust particles from passing through the air outlet of the separating member 110.

As shown in fig. 1 and 5, in one embodiment, the cleaning device further includes a post-filter 70, the air outlet component 300 further includes a first limiting portion 330 for limiting the post-filter 70, and the post-filter 70 is used for filtering the airflow coming out of the air outlet duct 310. Be equipped with first spacing portion 330 on air-out component 300, first spacing portion 330 can carry on spacingly to rearmounted filter 70 to realize rearmounted filter 70's installation, make the air current from air-out wind channel 310 come out the back filtered by rearmounted filter 70, make the air current of discharging to the external world from wind channel structure 10 cleaner.

Specifically, the air outlet member 300 includes a mounting platform 320, and the first limiting portion 330 is a limiting protrusion disposed on the mounting platform 320. The position-restricting protrusion serves to restrict the outer circumference of the post-filter 70.

As shown in fig. 1, 4, and 5, more specifically, the post-filter 70 is a cylindrical hepa filter, the mounting platform 320 is located at the first air outlet 312, the mounting platform 320 extends in a direction away from the first air outlet 312, and the limiting protrusion is an annular rib disposed on the mounting platform 320 and used for limiting the position of the post-filter 70.

As shown in fig. 1 and 5, in one embodiment, the cleaning apparatus further includes a pre-filter 60, and the hood 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 coming out of the separation duct. Through set up spacing portion 220 of second on aircraft bonnet 200, spacing portion 220 of second can carry on spacingly to leading filter 60 to realize leading filter 60's installation, make the air current from separating the wind channel come out the back and filtered by leading filter 60, make the air current of discharging into in air exhauster 20 cleaner, avoid air exhauster 20 to be polluted and damage.

Specifically, the pre-filter 60 is a cylindrical hypa filter, the second limiting portion 220 is annular, and the inner peripheral side of the pre-filter 60 is in limiting fit with the second limiting portion 220.

As shown in fig. 4 and 5, in the above-mentioned cleaning apparatus, when the exhaust fan 20 is operated, the external air flow enters the sub-separation air duct 111 through the third air inlet 112 of the separating member 110, then passes through the pre-filter 60 through the third air outlet 114 of the separating member 110, then enters the exhaust fan 20, then passes through the air outlet duct 310 after exiting from the exhaust fan 20, and finally passes through the post-filter 60 and is discharged to the outside.

As shown in fig. 2 and 5, one embodiment also relates to a dust collector comprising the cleaning device.

When the exhaust fan 20 is operated, the external air flow firstly enters the separation air duct under the action of the exhaust fan 20, is subjected to air-dust separation in the separation air duct, then enters the exhaust fan 20 installed in the installation cavity 210, and is discharged from the exhaust fan 20 and then continuously discharged to the outside through the air outlet duct 310. In the air duct structure 10, since the separating mechanism 100, the hood 200 and the air outlet component 300 are integrated, the separating mechanism 100, the hood 200 and the air outlet component 300 can be assembled in the housing of the vacuum cleaner together, and compared with the separating mechanism 100, the hood 200 and the air outlet component 300 which are mutually dispersed parts, the assembling processes can be reduced, and the assembly is convenient.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.