CN215650896U

CN215650896U - Air duct assembly and cleaning device

Info

Publication number: CN215650896U
Application number: CN202120517071.4U
Authority: CN
Inventors: 王继鑫; 杨永斌; 韦绥均
Original assignee: Suzhou 3600 Robot Technology Co ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-11
Publication date: 2022-01-28
Anticipated expiration: 2031-03-11

Abstract

The utility model discloses an air duct assembly and a cleaning device. Wherein, this wind channel subassembly includes dirty box of collection, filters piece, cyclone and fan. The dirty box of collection is equipped with the dirty chamber of collection, and the dirty box of collection still is equipped with the intercommunication in the dirty chamber of collection advances dirty mouthful and suction opening, and the dirty intracavity of collection is equipped with the wind-guiding structure, and filter and locate in the suction opening, cyclone communicates in the suction opening, and the fan communicates in cyclone, and the fan orders about the air current and gets into the dirty intracavity of collection by advancing dirty mouthful to in advancing into cyclone by the suction opening after the guide of wind-guiding structure, later by in cyclone advances into the fan. The technical scheme of the utility model can effectively separate the water vapor absorbed by the cleaning device, reduce the possibility that the water vapor is mildewed after being retained for a long time in a subsequent air duct in the cleaning device to generate peculiar smell and enters the fan of the cleaning device to influence the service life of the fan, and simultaneously improve the service lives of the filter element and other components in the base station.

Description

Air duct assembly and cleaning device

Technical Field

The utility model relates to the technical field of cleaning devices, in particular to an air duct assembly and a cleaning device using the same.

Background

When the floor cleaning machine is used for cleaning the floor, the fan in the floor cleaning machine rotates to form negative pressure, and then garbage and sewage on the ground can be sucked through the negative pressure, so that the cleaning work on the ground is completed. However, the scrubber in the related art does not effectively separate the absorbed water vapor during the cleaning operation, so that the water vapor may be mildewed and generate odor after staying in a subsequent air duct in the scrubber for a long time, or enter the blower to affect the service life of the blower.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air duct assembly, which aims to effectively separate water vapor absorbed by a cleaning device and reduce the possibility that the water vapor is mildewed after being retained for a long time in a subsequent air duct in the cleaning device to generate peculiar smell and enters a fan of the cleaning device to influence the service life of the fan.

To achieve the above object, the present invention provides an air duct assembly comprising:

the sewage collecting box is internally provided with a sewage collecting cavity, the sewage collecting box is also provided with a sewage inlet and an air suction opening which are communicated with the sewage collecting cavity, and the sewage collecting cavity is internally provided with an air guide structure;

the filter element is arranged in the air exhaust opening;

the cyclone separator is communicated with the air suction opening; and

and the fan is communicated with the cyclone separator, drives airflow to enter the dirt collecting cavity from the dirt inlet, is guided by the air guide structure, then enters the cyclone separator from the air suction port, and then enters the fan from the cyclone separator.

In an embodiment of the present invention, a dirt intake channel is disposed in the air guiding structure, and the dirt intake channel is communicated with the dirt intake and the dirt collecting cavity;

the sewage collecting box is defined to have an up-down direction, and the outlet of the sewage inlet channel is higher than the sewage inlet in the up-down direction of the sewage collecting box.

In an embodiment of the present invention, the air guiding structure includes a first plate, a second plate, a third plate, and a fourth plate, the first plate, the second plate, the third plate, and the fourth plate are all connected to a cavity wall of the dirt collecting cavity and surround an outer side of the dirt inlet, and the first plate, the second plate, the third plate, and the fourth plate surround to form the dirt inlet channel.

In an embodiment of the present invention, the dirt inlet and the air suction opening are located on a same chamber sidewall of the dirt collecting chamber, and are staggered in an up-down direction of the dirt collecting box.

In an embodiment of the present invention, an outlet of the dirt intake passage is disposed upward, the first plate is located between the dirt intake and the air suction opening, and the second plate is disposed opposite to the dirt intake;

the surfaces of the first plate body and the second plate body, which are far away from one end of the sewage inlet, are higher than the surfaces of the third plate body and the fourth plate body, which are far away from one end of the sewage inlet.

In an embodiment of the present invention, an end of the first plate body, which is far away from the second plate body, abuts against a cavity sidewall of the dirt collecting cavity, and a gap is formed between an end of the second plate body, which is far away from the suction opening, and the cavity sidewall of the dirt collecting cavity.

In an embodiment of the present invention, the dirt intake passage includes a first passage section and a second passage section, and the first passage section is communicated with the dirt intake and is spirally disposed; the second channel section is communicated with the first channel section and is spirally arranged, the spiral direction of the second channel section is opposite to that of the first channel section, and an outlet of the sewage inlet channel is formed at one end, far away from the first channel section, of the second channel section;

and/or the position of the air suction opening is higher than that of the dirt inlet in the vertical direction of the dirt collecting box.

In an embodiment of the present invention, the filter element is filter cotton;

and/or at least two conical airflow channels are arranged in the cyclone separator;

and/or the outlet of the cyclone separator is provided with a filter element.

In an embodiment of the present invention, the air duct assembly further includes a first pipeline, the first pipeline is communicated with the air suction opening and the cyclone separator, and an included angle is formed between the first pipeline and an air passing direction of the air suction opening.

In an embodiment of the present invention, the air duct assembly further includes a second pipeline and a third pipeline, the second pipeline is communicated with the cyclone separator and the fan, the third pipeline is communicated with the fan and the outside, and the third pipeline and the second pipeline are arranged at an included angle.

In an embodiment of the utility model, the third pipeline extends in a bent shape.

The utility model also provides a cleaning device, which comprises an air duct assembly, wherein the air duct assembly comprises a dirt collecting box, a filter cyclone separator and a fan; the dirty box of collection is equipped with the dirty chamber of collection, the dirty box of collection still is equipped with the intercommunication dirty box of collection advances dirty mouthful and suction opening, the dirty intracavity of collection is equipped with wind-guiding structure, filter and locate in the suction opening, the cyclone separator communicate in the suction opening, the fan communicate in the cyclone separator, the fan orders about the air current by advance dirty mouthful get into the dirty intracavity of collection, and the warp behind the wind-guiding structure guide by the suction opening gets into in the cyclone separator, later by the cyclone separator gets into in the fan.

When the air duct assembly is applied to a cleaning device, the fan is started to exhaust air, so that negative pressure is formed at the dirt inlet of the dirt collecting box, and the garbage and the sewage on the ground can be sucked. After rubbish and sewage mixture enter into the dirty intracavity of collection of the dirty box of collection, through the guide rectification effect of wind-guiding structure for the air current is longer relatively at the flow path of the dirty intracavity of collection, and the rubbish that is greater relatively of granule and drop of water can be detained in the dirty intracavity of collection of the dirty box of collection under the effect of gravity in being mingled with in the air current, and the rubbish that the granule is less relatively and drop of water mixture then continues to advance along with the air current towards exhaust outlet department. When later passing through the air suction opening, the filtering piece arranged in the air suction opening can carry out primary filtering interception on relatively small garbage and water drops, and only allows the mixture of air, water vapor and dust to pass through. Then when the mixture of air, water vapor and dust enters the cyclone separator, the airflow rotates at high speed in the cyclone separator to generate centrifugal force, and the water vapor and the dust can be thrown to the side wall or the bottom wall of an airflow channel in the cyclone separator for collection through the centrifugal force; or the water particles are sufficiently vaporized. When the airflow passes through the high-precision filter element at the outlet of the cyclone separator, the water vapor and dust in the airflow can be filtered and intercepted again with high precision through the filter element, so that only the air is allowed to continue to advance and enter the fan. Consequently, wind channel subassembly is through the gravity separation effect in the dirty box of collection in this scheme, the intraoral prefiltering interception effect of convulsions, cyclone's centrifugal separation effect and high accuracy filter core interception again filter, carry out effectual separation to the steam and the dust that cleaning device absorbed, make cleaning device only have the air in the follow-up wind channel after cyclone, thereby reduced steam and take place to milden and rot and produce the peculiar smell and enter into cleaning device's fan in and influence the life's of fan possibility after long-time detention in the follow-up wind channel in cleaning device, the life of filter core and other parts in the basic station has also been promoted simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of an air duct assembly according to the present invention;

FIG. 2 is a partial cross-sectional schematic view of the duct assembly of FIG. 1;

FIG. 3 is a partial cross-sectional view of another embodiment of the air duct assembly of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Air duct assembly	117	Fourth plate body
10	Dirt collecting box	10g	Sewage inlet channel
				10g	Sewage inlet	10h	First channel segment
10c	Air suction opening	10f	Second channel segment
				10e	Dirt collecting cavity	30	Cyclone separator
11	Air guide structure	50	Fan blower
				111	First plate body	70	First pipeline
113	Second plate body	80	Second pipeline
				115	Third plate body	90	Third pipeline

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 and 2, an air duct assembly 100 is provided.

In an embodiment of the present invention, the air duct assembly 100 includes a dirt collecting box 10, a filtering member, a cyclone separator 30 and a fan 50, wherein a dirt collecting cavity 10e is provided in the dirt collecting box 10, the dirt collecting box 10 is further provided with a dirt inlet 10a and an air suction opening 10c which are communicated with the dirt collecting cavity 10e, and an air guiding structure is provided in the dirt collecting cavity; the filter is arranged in the air suction opening 10 c; the cyclone separator 30 is communicated with the air suction opening 10 c; the fan 50 is communicated with the cyclone separator 30, the fan 50 drives the airflow to enter the dirt collecting cavity 10e from the dirt inlet 10a, and the airflow enters the cyclone separator 30 from the air suction opening 10c after being guided by the air guide structure 11, and then enters the fan 50 from the cyclone separator 30.

In an embodiment of the present invention, the dirt collecting chamber 10e of the dirt collecting box 10 can be used for preliminarily collecting and accommodating the garbage and the sewage entering from the dirt inlet 10a when the cleaning device performs the cleaning operation on the floor, so that the cleaning device can perform the continuous cleaning operation on the floor. The projection of the dirt collecting box 10 on the horizontal plane may be a semi-circular structure, a rectangular structure or a square structure, so that the dirt collecting box 10 has a regular shape and is convenient for molding and manufacturing. The air guiding structure 11 can be used to guide and rectify the airflow entering into the dirt collecting cavity 10e, so that the airflow has a relatively long flow path in the dirt collecting cavity 10e, so as to facilitate retention of relatively large particles of garbage and water drops in the dirt collecting cavity 10 e. The filter element can be used to filter against relatively small particles of dirt and water droplets moving with the airflow to the suction, reducing the likelihood of their continuing with the airflow into the cyclonic separator 30. Wherein, filter can be fixed through glue bonding in suction opening 10c, set up the draw-in groove joint on the dirty box 10 of collection and fix or wear to establish screw connection etc. this application does not do the injecing to this, can make to filter comparatively firm settling in suction opening 10c and carry out comparatively stable filtration stop work can. The cyclone separator 30 can be used for the air flow entering through the air suction opening 10c, and because the cyclone separator 30 can make the entering air flow rotate at high speed to generate centrifugal force, the water vapor in the air flow can be thrown to the side wall or the bottom wall of the air flow channel of the cyclone separator 30 by the centrifugal force; or the water particles are fully vaporized so as to realize the separation of the water vapor mixed in the airflow. The cyclone separation principle of the cyclone separator 30 is prior art, and the specific structure of the cyclone separator 30 will not be described in detail here. The fan 50 can be used for providing airflow power to drive the airflow on the ground to sequentially pass through the dirt inlet 10a, the dirt collecting box 10, the filtering piece, the cyclone separator 30 and the fan 50, and finally the airflow is discharged to the outside through the fan 50, so that negative pressure is generated at the dirt inlet 10a to suck and remove the garbage and the sewage on the ground.

When the air duct assembly 100 of the technical scheme of the utility model is applied to a cleaning device, the fan 50 is started to exhaust air, so that negative pressure is formed at the sewage inlet 10a of the sewage collecting box 10, and garbage and sewage on the ground can be sucked. After the mixture of garbage and sewage enters the sewage collecting cavity 10e in the sewage collecting box 10, the airflow is relatively long in the flow path in the sewage collecting cavity 10e under the guiding and rectifying action of the air guide structure 11, garbage and water drops with relatively large particles mixed in the airflow can be retained in the sewage collecting box 10 under the action of gravity, and the mixture of garbage and water drops with relatively small particles continuously advances towards the air suction opening 10c along with the airflow. When the air passes through the air suction opening 10c, the filtering piece arranged in the air suction opening 10c can filter and block garbage and water drops with relatively small particles, and only allow air and water vapor mixture to pass through. Then when the air and water vapor mixture enters the cyclone separator 30, the airflow rotates at high speed in the cyclone separator 30 to generate centrifugal force, and water vapor can be thrown to the side wall or the bottom wall of the airflow channel in the cyclone separator 30 through the centrifugal force; or the water particles are sufficiently vaporized and only air is allowed to proceed and enter the fan 50. Therefore, in the present scheme, the air duct assembly 100 effectively separates the water vapor absorbed by the cleaning device through the gravity separation effect in the dirt collecting box 10, the filtering separation effect in the air suction opening 10c and the centrifugal separation effect of the cyclone separator 30, so that the cleaning device only has air in the subsequent air duct behind the cyclone separator 30, thereby reducing the possibility that the water vapor is mildewed after being retained for a long time in the subsequent air duct in the cleaning device to generate peculiar smell and enters the fan 50 of the cleaning device to influence the service life of the fan 50.

Referring to fig. 2, in an embodiment of the present invention, a dirt inlet channel 10g is disposed in the air guiding structure 11, and the dirt inlet channel 10g is communicated with a dirt inlet 10a and a dirt collecting chamber 10 e; the dirt collection box 10 is defined to have an up-down direction in which the outlet of the dirt inlet passage 10g is higher than the dirt inlet 10 a.

It will be understood that the outlet of the dirt intake passage 10g is disposed higher than the dirt intake port 10a so that the airflow is blown out from the outlet of the dirt intake passage 10g and the chamber bottom wall of the dirt-collecting chamber 10e has a certain height. At this time, the garbage and water drops with relatively large particles entrained in the airflow are in a suspended state when entering the dirt collecting cavity 10e from the outlet of the dirt inlet channel 10g, and fall onto the cavity bottom wall of the dirt collecting cavity 10e under the action of self gravity. So make this granule relatively great rubbish and drop of water just begin to separate through self action of gravity and air current when getting into in the dirty chamber 10e of collection to make granule relatively great rubbish and drop of water carry out more quick and abundant separation in the dirty chamber 10e of collection, with the separation effect of improvement to granule relatively great rubbish and drop of water. Meanwhile, by such arrangement, the air guide structure 11 can also play a role in preventing diversion of the sewage in the sewage collection chamber 10e, so that the possibility that the sewage in the sewage collection chamber 10e flows out from the sewage inlet 10a can be reduced.

Referring to fig. 2, in an embodiment of the present invention, the air guiding structure includes a first plate 111, a second plate 113, a third plate 115, and a fourth plate 117, the first plate 111, the second plate 113, the third plate 115, and the fourth plate 117 are all connected to a cavity wall of the dirt collecting cavity 10e and surround the outer side of the dirt inlet 10a, and the first plate 111, the second plate 113, the third plate 115, and the fourth plate surround to form a dirt inlet channel 10 g.

It can be understood that the air guiding structure 11 is formed by enclosing the first plate 111, the second plate 113, the third plate 115 and the fourth plate 117, so that the structure of the air guiding structure 11 is relatively simple, the shape is relatively regular, and the manufacturing of the air guiding structure 11 can be facilitated. Of course, in other embodiments, the wind guiding structure 11 may be a tubular structure, or a dirt inlet channel 10g may be formed by enclosing with the wall of the dirt collecting cavity 10 e.

Referring to fig. 2, in an embodiment of the present invention, the dirt inlet 10a and the air suction opening 10c are located on the same sidewall of the dirt collecting chamber 10e, and are staggered in the vertical direction of the dirt collecting box 10.

It can be understood that the dirt inlet 10a and the air suction opening 10c are located on the same wall of the dirt collecting chamber 10e and are arranged in a staggered manner, so that the air flow can change direction and flow to the air suction opening 10c in a circuitous manner after entering the dirt collecting chamber 10e from the dirt inlet 10 a. At this moment, the relatively longer flow path of this air current can make the relatively great rubbish of granule that mix with in the air current have certain separation time to the relatively great rubbish of this granule can be comparatively abundant be detained in album dirty chamber 10e under the action of gravity of self, thereby improved the separation effect to the relatively great rubbish of granule. The dirt inlet 10a can be arranged on the central line of the wall of the dirt collecting cavity 10e, and the air suction opening 10c is arranged on one side of the wall of the dirt collecting cavity 10e, so that the dirt inlet 10a can be approximately positioned at the central position of the bottom of the cleaning device to uniformly clean the ground area under the bottom of the cleaning device, and meanwhile, the air inlet and the air suction opening 10c are staggered to form a certain distance to ensure the length of the flow path of the air flow in the dirt collecting cavity 10 e. Of course, it is also possible that the dirt inlet 10a and the suction port 10c are provided on opposite sides of the wall of the dirt collecting chamber 10 e. In addition, it should be noted that the present application is not limited to this, and in other embodiments, the dirt inlet 10a and the air suction opening 10c may be located on different chamber walls of the dirt collecting chamber 10e, for example: can be provided on the opposite walls of the dirt-collecting chamber 10 e.

Referring to fig. 2, in an embodiment of the present invention, an outlet of the dirt intake passage 10g is disposed upward, the first plate 111 is located between the dirt intake 10a and the suction opening 10c, and the second plate 113 is disposed opposite to the dirt intake 10 a; the surfaces of the first plate 111 and the second plate 113 at the ends remote from the dirt inlet 10a are higher than the surfaces of the third plate 115 and the fourth plate 117 at the ends remote from the dirt inlet 10 a.

It can be understood that the surfaces of the first plate 111 and the second plate 113 at the ends far away from the dirt intake opening 10a are relatively high, so that the air flow flowing out from the dirt intake passage 10g can be blocked and guided by the first plate 111 and the second plate 113, and flow along the extending direction of the second plate 113, that is, far away from the air suction opening 10c, and then detour to flow from the outside of the second plate 113 toward the air suction opening 10c under the blocking action of the wall of the dirt collecting chamber 10 e. At this time, the flow path of the air flow in the dirt collecting chamber 10e is further increased, thereby further facilitating sufficient separation of the relatively large particles entrained in the air flow from the trash. Meanwhile, the arrangement facilitates the garbage to be stacked and collected in all areas in the sewage collecting cavity 10e, thereby being beneficial to improving the space utilization efficiency in the sewage collecting box 10. In order to simplify the structure of the wind guiding structure 11 and facilitate the processing and manufacturing of the wind guiding structure 11, the first plate 111, the second plate 113, the third plate 115 and the fourth plate 117 may all be vertical plate structures, that is, the projection of the dirt intake channel 10g formed by enclosing of the first plate, the second plate, the third plate and the fourth plate on the horizontal plane is square. At this time, a portion of the dirt collecting chamber 10e, which is provided with the inlet port, may be in an arc shape protruding toward the inside of the dirt collecting chamber 10e, or in an inclined shape toward the inside of the dirt collecting chamber 10e in a direction facing the chamber bottom wall of the dirt collecting chamber 10e, so that the lower ends of the first plate 111, the third plate 115, and the fourth plate 117 are connected to the chamber side wall of the dirt collecting chamber 10 e. Specifically, the lower end of the first plate body 111 can be connected to the cavity side wall of the dirt collecting cavity 10e provided with the dirt inlet 10a and the cavity bottom wall of the dirt collecting cavity 10e, the lower end of the second plate body 113 is connected to the cavity bottom wall of the dirt collecting cavity 10e, the third plate body 115 and the first plate body 111 are arranged oppositely, the lower end of the third plate body 115 is connected to the cavity side wall of the dirt collecting cavity 10e provided with the dirt inlet 10a and the cavity bottom wall of the dirt collecting cavity 10e, the fourth plate body 117 and the second plate body 113 are arranged oppositely, and the lower end of the fourth plate body 117 is connected to the cavity side wall of the dirt collecting cavity 10e provided with the dirt inlet 10 a. Of course, the present invention is not limited thereto, and in other embodiments, the lower ends of the first plate 111, the second plate 113, the third plate 115, and the fourth plate 117 may be all connected to only the chamber sidewall of the dirt collecting chamber 10e where the dirt inlet 10a is provided.

Referring to fig. 2, in an embodiment of the present invention, one end of the first plate 111 away from the second plate 113 abuts against a cavity side wall of the dirt collecting cavity 10e, and a gap is formed between one end of the second plate 113 away from the suction opening 10c and the cavity side wall of the dirt collecting cavity 10 e.

It can be understood that, at this time, the first plate 111 and the second plate 113 are relatively long, and can better block the airflow to improve the guiding effect of the first plate 111 and the second plate 113 on the airflow, so that the airflow can flow along the direction far away from the air suction opening 10c after being blocked by the first plate 111 and the second plate 113, and then change the direction to flow to the air suction opening 10c in a circuitous manner under the blocking of the cavity wall of the dirt collecting cavity 10 e. Wherein, a connection relationship may be provided between a side edge of one end of the first plate body 111 away from the second plate body 113 and a cavity side wall of the dirt collecting cavity 10e, that is, the side edge is connected to the cavity side wall of the dirt collecting cavity 10e, so as to ensure the sealing property therebetween. Further, the wall of the dirt collecting cavity 10e opposite to the dirt inlet 10a may be an arc-shaped structure, and the concave surface is disposed towards the dirt inlet 10 a. At this time, the dust collecting box is made to be roughly in a semicircular structure, so that the space of the airflow on the flow path between the circuitous flow direction air suction openings 10c blocked by the cavity wall of the dirt collecting cavity 10e in the arc-shaped structure is relatively long, and the wind pressure of the area at the position is relatively small, thereby being convenient for the retention of the garbage with relatively large particles in the dirt collecting cavity 10 c.

Referring to fig. 2, in an embodiment of the present invention, the position of the dirt inlet 10a is lower than the position of the air suction opening 10c in the vertical direction of the dirt collection box 10.

It is understood that the position of the dirt inlet 10a is set lower than the suction opening 10c so that the air flow has a tendency to flow upward when flowing from the dirt inlet 10a to the suction opening 10c in the dirt collection box 10. At this time, the garbage with relatively large particles moves downwards under the action of gravity, and the mixture of the garbage with relatively small particles and water drops moves downwards along with the airflow, so that the garbage with relatively large particles is more conveniently separated from the airflow. Meanwhile, the arrangement makes the position of the air suction opening 10c relatively higher, so as to reduce the possibility of being covered by the garbage in the garbage collection box 10, thereby increasing the accommodating amount of the garbage in the garbage collection box 10 and improving the utilization efficiency of the space in the garbage collection box 10. Of course, the present invention is not limited thereto, and in other embodiments, the position of the dirt intake port 10a and the position of the air suction port 10c may be located at the same height in the vertical direction of the dirt collection box 10.

Referring to fig. 3, in an embodiment of the present invention, the dirt intake passage 10g includes a first passage section 10h and a second passage section 10f, the first passage section 10h is connected to the dirt intake port 10a and is disposed in a spiral shape, the second passage section 10h is connected to the first passage section 10h and is disposed in a spiral shape, a spiral direction of the second passage section 10h is opposite to a spiral direction of the first passage section 10h, and an outlet of the dirt intake passage 10g is formed at an end of the second passage section 10h away from the first passage section 10 h.

It can be understood that the dirt intake passage 10g is composed of the first passage section 10h and the second passage section 10f which are spirally arranged, so that the centrifugal force is generated as the air flow rotates at a high speed after passing through the first passage section 10h and the second passage section 10f in sequence. At this time, relatively large garbage and water drops entrained in the airflow can be sufficiently thrown to the side wall of the dirt collecting cavity 10e by centrifugal force, and then flow downwards to the bottom of the cavity along the side wall of the dirt collecting cavity 10e under the action of gravity to be settled and collected in the dirt collecting cavity 10 e. The air flow can continue in the direction toward the suction opening 10a by spreading out directly after flowing out from the second passage section 10 f. Therefore, the arrangement of the air guiding structure 11 enables larger garbage and water drops to be separated from the air flow better through the centrifugal separation effect of the air guiding structure once entering the dust collecting cavity, thereby being beneficial to improving the separation and collection effect of the garbage and water drops with relatively larger particles in the dirt collecting cavity 10 e. Further, in order to allow relatively large garbage and water drops to have a relatively high height after coming out of the sewage inlet passage 10g and to fall off better, the possibility of the sewage in the sewage collecting chamber 10e flowing back from the sewage inlet passage 10g is reduced. The first channel segment 10h may be disposed in a gradually ascending spiral configuration and the second channel segment 10f may be disposed in a horizontal spiral configuration. Of course, the present application is not limited thereto, and in other embodiments, the first channel segment 10h and the second channel segment 10f may be horizontally disposed in a spiral shape, or may be gradually disposed in a spiral shape. In addition, in order to better prolong the flow path of the air flow in the dirt collecting chamber 10e, one end of the first channel section 10h far away from the dirt inlet may be spirally extended along one end far away from the air suction opening 10c, so that the dirt inlet is located between the outlet of the dirt inlet channel 10g and the air suction opening 10 c. The sewage inlet channel 10g may be formed by enclosing a bottom plate and three connected side plates, and may further include a top plate covering the three connected side plates.

In one embodiment of the present invention, the filter member is a filter cotton.

It can be understood that the filter cotton has a certain filtering volume due to the good adsorption performance, so that the filtering and blocking effect of the filter piece on the garbage and water drops with relatively small particles can be improved. Of course, the present application is not limited thereto, and in other embodiments, the filter element may be a gauze or a wire mesh.

In one embodiment of the utility model, at least two conical gas flow passages are provided in the cyclone separator 30.

It can be understood that the arrangement of the at least two conical airflow channels enables the airflow entering the cyclone separator 30 to simultaneously rotate at a high speed in the at least two conical airflow channels, so as to simultaneously separate the water and the vapor in the airflow through the at least two conical airflow channels, thereby improving the separation effect of the cyclone separator 30 on the water and the vapor.

In one embodiment of the utility model, the outlet of the cyclonic separator 30 is provided with a filter element.

It will be appreciated that the air exiting the cyclonic separator 30 can be further filtered by the filter element to further block the filtering of water mist and dust, thereby more advantageously ensuring that the air stream exiting the cyclonic separator 30 is air only and a water vapor separation effect on the subsequent ducts of the cleaning apparatus after the cyclonic separator 30.

Referring to fig. 1 or fig. 2, in an embodiment of the present invention, the air duct assembly 100 further includes a first pipeline 70, the first pipeline 70 is communicated with the air suction opening 10c and the cyclone separator 30, and an air passing direction of the first pipeline 70 and the air suction opening 10c forms an included angle.

It will be appreciated that the suction opening 10c and the inlet of the cyclone 30 can be better communicated through the opposite ends of the first pipe 70, so that the convenience of communication between the suction opening 10c and the cyclone 30 can be improved. The first pipeline 70 and the air suction opening 10c are arranged at an included angle, so that the first pipeline 70, the cyclone separator 30 and the dirt collecting box 10 are distributed more compactly, and the overall volume of the air duct assembly 100 is reduced, so that the air duct assembly 100 can be conveniently installed on a cleaning device. The shape of the cross section of the first pipe 70 may be square or circular, so that the shape of the first pipe 70 is regular and is convenient for molding, and the shape of the first pipe can be specifically configured to be adaptive according to the shape of the air suction opening 10 c. Of course, it should be noted that in other embodiments, the air suction opening 10c may be directly connected to the outlet of the cyclone separator 30.

Referring to fig. 1 or fig. 2, in an embodiment of the present invention, the air duct assembly 100 further includes a second pipeline 80 and a third pipeline 90, the second pipeline 80 is communicated with the cyclone separator 30 and the fan 50, the third pipeline 90 is communicated with the fan 50 and the outside, and the third pipeline 90 and the second pipeline 80 form an included angle.

It will be appreciated that the cyclone separator 30 and the fan 50 can be better connected by the opposite ends of the second conduit 80, thereby improving the ease of communication between the inlet of the fan 50 and the outlet of the cyclone separator 30. And the air flowing out of the outlet of the blower 50 may be guided by the third pipe 90 so as to be discharged to the outside according to a predetermined flow path. The third pipeline 90 and the second pipeline 80 are arranged at an included angle, so that the cyclone separator 30, the fan 50 of the second pipeline 80 and the third pipeline 90 are distributed more compactly, thereby further facilitating the reduction of the overall volume of the air duct assembly 100 and facilitating the installation of the air duct assembly 100 on a cleaning device. Further, the angle formed by the second pipeline 80 and the second pipeline 80 can be set towards the dirt collecting box 10, so as to further reduce the space occupation of the two pipelines.

Referring to fig. 1 or fig. 2, in an embodiment of the present invention, the third pipeline 90 extends in a bent shape.

It will be appreciated that such an arrangement reduces the possibility of interference between the end of the third conduit 90 remote from the fan 50 and the first conduit 70 or the dirt-collection box 10, thereby facilitating a stable arrangement of the various mechanisms. Meanwhile, when the air flows in the third pipeline 90, the third pipeline 90 may extend in a bent shape and collide with the inner wall of the third pipeline 90 to reduce the flow speed of the air, so as to reduce the noise generated at the outlet of the third pipeline 90. Wherein the third pipeline 90 can be bent once, twice or more.

The present invention further provides a cleaning device, which includes the air duct assembly 100, and the specific structure of the air duct assembly 100 refers to the above embodiments, and since the cleaning device adopts all technical solutions of all the above embodiments, the cleaning device at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The cleaning device may be a floor cleaning machine, a floor sweeping robot, a dust collector, or the like, and the air duct assembly 100 may be disposed in the body of the cleaning device.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An air duct assembly, comprising:

the filter element is arranged in the air exhaust opening;

the cyclone separator is communicated with the air suction opening; and

2. The air duct assembly according to claim 1, wherein a dirt intake passage is provided in the air guide structure, and the dirt intake passage communicates with the dirt intake port and the dirt collecting chamber;

3. The air duct assembly according to claim 2, wherein the air guiding structure includes a first plate, a second plate, a third plate, and a fourth plate, the first plate, the second plate, the third plate, and the fourth plate are all connected to the wall of the dirt collecting cavity and surround the outside of the dirt inlet, and the first plate, the second plate, the third plate, and the fourth plate enclose the dirt inlet channel.

4. The air duct assembly of claim 3, wherein the dirt inlet and the air suction opening are located on the same chamber sidewall of the dirt collecting chamber and are staggered in the up-down direction of the dirt collecting box.

5. The air duct assembly according to claim 4, wherein the outlet of the dirt intake passage is disposed upward, the first plate is located between the dirt intake and the suction opening, and the second plate is disposed opposite to the dirt intake;

6. The air duct assembly according to claim 5, wherein an end of the first plate body, which is far away from the second plate body, abuts against a cavity side wall of the dirt collection cavity, and a gap is formed between an end of the second plate body, which is far away from the air suction opening, and the cavity side wall of the dirt collection cavity.

7. The air duct assembly according to claim 2, wherein the dirt intake passage includes a first passage section and a second passage section, the first passage section is communicated with the dirt intake port and is spirally arranged, the second passage section is communicated with the first passage section and is spirally arranged, the spiral direction of the second passage section is opposite to that of the first passage section, and an outlet of the dirt intake passage is formed at one end of the second passage section, which is far away from the first passage section;

8. The air duct assembly according to any one of claims 1-7, wherein the filter is filter cotton;

and/or the outlet of the cyclone separator is provided with a filter element.

9. The air duct assembly according to any one of claims 1 to 7, further comprising a first pipeline, wherein the first pipeline is communicated with the air suction opening and the cyclone separator, and the air passing direction of the first pipeline and the air suction opening forms an included angle.

10. A cleaning device comprising the air duct assembly of any one of claims 1-9.