CN116803322A - Air duct structure and sweeping robot - Google Patents

Air duct structure and sweeping robot Download PDF

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Publication number
CN116803322A
CN116803322A CN202211604700.2A CN202211604700A CN116803322A CN 116803322 A CN116803322 A CN 116803322A CN 202211604700 A CN202211604700 A CN 202211604700A CN 116803322 A CN116803322 A CN 116803322A
Authority
CN
China
Prior art keywords
shell
diversion pipeline
air
duct structure
air outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211604700.2A
Other languages
Chinese (zh)
Inventor
胡永华
付晨昆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Youjiyuan Technology Co ltd
Original Assignee
Shenzhen Youjiyuan Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Youjiyuan Technology Co ltd filed Critical Shenzhen Youjiyuan Technology Co ltd
Priority to CN202211604700.2A priority Critical patent/CN116803322A/en
Publication of CN116803322A publication Critical patent/CN116803322A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/24—Floor-sweeping machines, motor-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4094—Accessories to be used in combination with conventional vacuum-cleaning devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4097—Means for exhaust-air diffusion; Exhaust-air treatment, e.g. air purification; Means for sound or vibration damping

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  • Duct Arrangements (AREA)

Abstract

The application provides an air duct structure and a sweeping robot, and belongs to the technical field of cleaning. The air duct structure comprises a fan, a first guide pipeline and a second guide pipeline; the shell of the fan is provided with a first air inlet and a first air outlet; the first diversion pipeline is communicated with the first air inlet, and the second diversion pipeline is communicated with the first air outlet; the caliber of the second air inlet of the first diversion pipeline is larger than that of the first air inlet; the second diversion pipeline is provided with an acceleration area and a slow flow area, and the caliber of the acceleration area gradually decreases from one end close to the first air outlet to one end far from the first air outlet; the caliber of the slow flow region gradually increases from one end close to the accelerating region to one end far from the accelerating region. The accelerating area and the slow flow area are arranged in the second diversion pipeline, so that resonance generated in the flowing process of the gas in the second diversion pipeline is avoided, and noise generated in the second diversion pipeline by the gas is reduced.

Description

Air duct structure and sweeping robot
Technical Field
The application relates to the technical field of cleaning equipment, in particular to an air duct structure and a sweeping robot.
Background
The surface cleaning device sucks dust on the ground together with air by the operation of a fan in the surface cleaning device, the dust is retained in the dust box, and the cleaned air is discharged through the air duct.
The surface cleaning device generally adopts a fan as power, and when the fan works, gas collides with the inner wall of the pipeline in the process of flowing through the pipeline, and noise is generated. And the surface cleaning device is in the clear in-process of going on, sometimes needs to increase the running power of fan to promote clean efficiency, when fan running speed is faster, the flow speed of gas in the pipeline is faster, then the noise that produces with the inner wall collision of pipeline is bigger, influences user experience.
Therefore, it is worth studying how to reduce the collision force between the air flow and the air inlet pipe and the air outlet pipe, and reduce the noise generated during the flow of the air flow in the pipe.
Disclosure of Invention
Therefore, the application aims to overcome the defects in the prior art and provide an air duct structure and a sweeping robot.
The application provides the following technical scheme: an air duct structure comprises a fan, a first guide pipeline and a second guide pipeline;
the shell of the fan is provided with a first air inlet and a first air outlet;
the first diversion pipeline is communicated with the first air inlet, and the second diversion pipeline is communicated with the first air outlet;
the caliber of the second air inlet of the first diversion pipeline is larger than that of the first air inlet;
the second diversion pipeline is provided with an acceleration area and a slow flow area, the acceleration area is positioned at one end of the second diversion pipeline, which is close to the first air outlet, and the slow flow area is positioned at one end of the second diversion pipeline, which is far away from the first air outlet;
the caliber of the accelerating area gradually decreases from one end close to the first air outlet to one end far away from the first air outlet;
the caliber of the slow flow region gradually increases from one end close to the accelerating region to one end far away from the accelerating region.
Further, the ratio of the length of the accelerating region to the length of the slow flow region is x, wherein the value range of x is 0.2-1.
Further, the housing includes an upper housing and a lower housing;
the outer wall of the upper shell is provided with a plurality of first spacing protrusions at intervals, the outer wall of the lower shell is provided with a plurality of first connecting buckles at intervals, and each first connecting buckle is buckled with one first spacing protrusion to form the shell.
Further, the first diversion pipeline comprises a first connection shell and a second connection shell;
the edge of the first connecting shell is provided with a first mounting groove, the edge of the second connecting shell is provided with a first flange, and the first flange is clamped with the first mounting groove to form the first diversion pipeline;
the side wall of the first connecting shell is provided with a plurality of first connecting pieces at intervals, the side wall of the second connecting shell is provided with a plurality of second connecting pieces at intervals, and each first connecting piece is correspondingly connected with one second connecting piece.
Further, at least one limiting groove is formed in the inner wall of the first connecting shell, and at least one limiting column is formed in the inner wall of the second connecting shell;
the number of the limit grooves is equal to that of the limit columns, and one limit column is correspondingly inserted into one limit groove.
Further, a sealing sleeve is arranged between the second diversion pipeline and the first air outlet of the shell.
Further, the second diversion pipeline comprises a third connecting shell and a fourth connecting shell;
the edge of the third connecting shell is provided with a first connecting table, the edge of the fourth connecting shell is provided with a second connecting table, and the first connecting table is correspondingly connected with the second connecting table to form the second diversion pipeline;
the side wall of the third connecting shell is provided with a plurality of third connecting pieces at intervals, the side wall of the fourth connecting shell is provided with a plurality of fourth connecting pieces at intervals, and each third connecting piece is connected corresponding to one fourth connecting piece.
Further, the inner wall of the accelerating area and the inner wall of the slow flow area are respectively smooth curved surfaces. Further, the casing is a volute.
Some embodiments of the application also provide a sweeping robot, which comprises a sweeping robot body and the air duct structure.
Embodiments of the present application have the following advantages: the first guide pipeline is arranged at the first air inlet of the fan, and the caliber of the second air inlet is larger than that of the first air inlet, so that the air flow rate at the second air inlet is smaller than that of the first air inlet in the operation process of the fan, namely the noise generated at the second air inlet of the first guide pipeline is reduced by increasing the caliber of the second air inlet. The aperture of the accelerating area is reduced, so that the flow speed of air discharged through the first air outlet into the accelerating area is increased, the flow speed of the air in the second diversion pipeline is increased, the aperture of the slow flow area is increased, the flow speed of gas is gradually reduced when the gas enters the slow flow area, the collision force between the gas and the inner wall of the second diversion pipeline is reduced, and accordingly noise generated when the gas flows through the second diversion pipeline is reduced. The accelerating area and the slow flow area are arranged in the second diversion pipeline, so that resonance generated in the flowing process of the gas in the second diversion pipeline is avoided, and noise generated in the second diversion pipeline by the gas is reduced.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a duct structure according to some embodiments of the present application;
FIG. 2 illustrates an exploded view of a duct structure provided in accordance with some embodiments of the present application;
FIG. 3 illustrates an exploded view of another view of a duct structure provided by some embodiments of the present application;
FIG. 4 illustrates an exploded view of a second flow conduit in a duct structure according to some embodiments of the present application;
fig. 5 is a schematic structural diagram of a view angle of a second flow guiding duct in a duct structure according to some embodiments of the present application.
Description of main reference numerals:
100-fans; 200-a first diversion pipeline; 300-a second diversion pipeline; 120-a shell; 121-a first air inlet; 122-a first air outlet; 210-a second air inlet; 310-acceleration zone; 320-a slow flow region; 123-an upper housing; 124-a lower housing; 123 a-a first limit projection; 124 a-a first connector clasp; 220-a first connection housing; 230-a second connection housing; 221-a first mounting groove; 231-a first flange; 222-a first connector; 232-a second connector; 223-limit groove; 233-a limit column; 400-sealing sleeve; 330-a third connection housing; 340-fourth connection shell; 331-a first connection station; 341-a second connection station; 332-a third connector; 342-fourth connection.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
It will be understood that when an element is referred to as being "fixed 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. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
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 application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, some embodiments of the present application provide an air duct structure, which is applied to a sweeping robot, and can reduce noise generated in the cleaning and dirt-sucking processes of the sweeping robot, and improve the use experience of a user.
The air duct structure comprises a fan 100, a first diversion pipeline 200 and a second diversion pipeline 300. In some embodiments of the application, the fan 100 may be a centrifugal fan, an axial fan, a diagonal flow fan, or a cross flow fan. In this embodiment, the fan 100 is a centrifugal fan.
In addition, the casing 120 of the fan 100 has a first air inlet 121 and a first air outlet 122, and the first air inlet 121 and the first air outlet 122 are communicated through a cavity inside the casing 120.
When the fan 100 is operated, the external air enters the fan 100 through the first air inlet 121 and is discharged from the first air outlet 122 to form an air flow.
Meanwhile, the first diversion pipeline 200 is disposed on the side wall of the casing 120 and is communicated with the first air inlet 121. Specifically, the air outlet end of the first diversion pipeline 200 is communicated with the first air inlet 121.
In order to reduce noise generated when the external air is exhausted from the first air outlet 122 through the first air guiding duct 200 and the fan 100, in this embodiment, the aperture of the second air inlet 210 of the first air guiding duct 200 is larger than that of the first air inlet 121. It is understood that the first diversion conduit 200 has a second air inlet 210 thereon, and the second air inlet 210 is located at an end of the first diversion conduit 200 away from the first air inlet 121.
It should be noted that, since the caliber of the second air inlet 210 is larger than that of the first air inlet 121, when the fan 100 is operated, the flow rate of the air at the second air inlet 210 is smaller than that of the first air inlet 121, that is, the noise generated at the second air inlet 210 of the first diversion pipeline 200 is reduced by increasing the caliber of the second air inlet 210. It will be appreciated that as wind speed decreases, noise will also decrease.
In addition, since the flow velocity of the air in the first guide duct 200 is gradually increased when the external air enters the blower 100 through the first guide duct 200, in order to reduce noise generated by the collision of the air entering the first guide duct 200 with the inner wall of the first guide duct 200, the inner wall of the first guide duct 200 is provided with a smooth curved surface, so that when the air enters the first guide duct 200, the air flows along the inner wall in the shape of the smooth curved surface, and when the air contacts the inner wall of the first guide duct 200, the force of the air colliding with the inner wall of the first guide duct 200 is formed into a component force along the direction of the curved surface under the action of the curved surface, so that the vertical collision force of the air with the inner wall of the first guide duct 200 is reduced, and the noise generated in the flowing process of the air in the first guide duct 200 is reduced.
In some embodiments of the present application, in order to reduce noise generated when external air enters the fan 100, the housing of the fan 100 is configured in a volute shape, so that the air entering the fan 100 through the first guide duct 200 forms a spiral airflow on the inner wall of the housing of the volute-shaped structure of the fan 100, thereby reducing noise generated when the air collides with the housing of the fan 100.
Meanwhile, the second flow guiding duct 300 is communicated with the first air outlet 122, and it can be understood that the air discharged through the first air outlet 122 enters the second flow guiding duct 300 and is discharged from the air outlet in the second flow guiding duct 300.
Specifically, in order to reduce the noise of the air in the second diversion conduit 300 and reduce the noise generated by the air exhausted from the first air outlet 122 of the fan 100, the second diversion conduit 300 has an acceleration area 310 and a buffer area 320, wherein the acceleration area 310 is located at one end of the second diversion conduit 300 close to the first air outlet 122.
It should be noted that the acceleration region 310 is used to increase the flow rate of the gas entering the second diversion conduit 300, so as to increase the flow rate of the gas when the gas is discharged through the acceleration region 310.
Specifically, in this embodiment, the aperture of the accelerating area 310 is smaller than that of the first air outlet, and by reducing the aperture of the accelerating area 310, the flow speed of the air discharged through the first air outlet when entering the accelerating area 310 is increased.
In addition, the flow-slowing area 320 is located at an end of the second diversion conduit 300 away from the first air outlet 122. It should be noted that, the caliber of the flow-slowing area 320 is larger than that of the acceleration area 310, and by increasing the caliber of the flow-slowing area 320, when the gas enters the flow-slowing area 320, the flow speed of the gas gradually decreases, so as to slow down the collision force between the gas and the inner wall of the second flow guiding pipeline 300, thereby reducing the noise generated when the gas flows through the second flow guiding pipeline 300.
In some embodiments of the present application, the accelerating area 310 and the slow flow area 320 are disposed in the second diversion pipe 300 to avoid resonance generated during the flowing of the gas in the second diversion pipe 300, thereby reducing noise generated by the gas in the second diversion pipe 300.
As shown in fig. 2 and 3, in some embodiments of the present application, in order to increase the flow velocity of the gas discharged from the first air outlet 122 of the fan 100, the acceleration region 310 is disposed between the air inlet of the second flow guide tube and the slow flow region 320.
It should be noted that, by setting the acceleration region 310 to increase the flow velocity of the gas, the initial power of the flow of the gas in the second diversion pipe 300 is increased, so as to increase the flow efficiency of the gas in the second diversion pipe 300.
Specifically, the aperture of the accelerating area 310 gradually decreases from one end near the first air outlet 122 to one end far from the first air outlet 122. It will be appreciated that as the pipe diameter in the second flow conduit 300 gradually decreases, the flow rate of the gas gradually increases.
In this embodiment, in order to reduce noise generated during the process of flowing the gas in the acceleration region 310, the inner wall of the acceleration region 310 is a smooth curved surface, and the extending direction of the curved surface is the same as the flowing direction of the gas in the acceleration region 310, so as to reduce noise generated by collision between the gas and the inner wall of the acceleration region 310 during the process of flowing the gas in the acceleration region 310.
In addition, the ratio of the length of the acceleration region 310 to the length of the slow flow region 320 is x, wherein x is 0.2.ltoreq.x.ltoreq.1. It is understood that the value of x can be any value of 0.2.ltoreq.x.ltoreq.1, and can be specifically set according to practical situations.
As shown in fig. 1 and 5, in some embodiments of the present application, in order to further reduce noise of the gas in the second diversion conduit 300, the slow flow region 320 is disposed at an end of the accelerating region 310 away from the first air outlet 122.
Specifically, the caliber of the slow flow region 320 gradually increases from one end close to the acceleration region 310 to one end far from the acceleration region 310. It will be appreciated that as the gas enters the flow-retarding region 320, the flow velocity of the gas gradually decreases, so that the collision force of the gas with the inner wall of the flow-retarding region 320 in the flow-retarding region 320 is reduced, and at the same time, the friction force between the gas and the inner wall of the flow-retarding region 320 is reduced, thereby further reducing the noise generated during the flow of the gas in the second flow-guiding duct 300.
As shown in fig. 2 and 3, in some embodiments of the present application, the casing 120 includes an upper casing 123 and a lower casing 124 for easy maintenance, cleaning or replacement of the blower 100.
Specifically, a plurality of first spacing protrusions 123a are disposed on the outer wall of the upper housing 123, and a plurality of first connecting buckles 124a are disposed on the outer wall of the lower housing 124. Wherein, a plurality of first spacing protrusions 123a are distributed in the circumference of the upper housing 123, and a plurality of first connecting buckles 124a are distributed in the circumference of the lower housing 124.
It should be noted that the number of the first limiting protrusions 123a is equal to the number of the first connecting buckles 124a, and each of the first connecting buckles 124a is buckled with one of the first limiting protrusions 123a to form the housing 120.
The number of the first limiting protrusions 123a and the number of the first connecting buckles 124a are at least three, so as to improve the stability of the connection between the upper housing 123 and the lower housing 124.
By snap-fitting the upper and lower cases 123 and 124, the upper and lower cases 123 and 124 can be easily assembled and disassembled, and the upper and lower cases 123 and 124 can be easily cleaned.
In addition, in order to prevent air entering the casing 120 from leaking from the connection portion between the upper and lower cases 123 and 124, a sealant is provided at the edge of the upper case 123 to improve the sealing quality of the edge of the case while connecting the upper and lower cases 123 and 124 through the sealant.
As shown in fig. 2 and 3, in some embodiments of the present application, the first guide duct 200 includes a first connection housing 220 and a second connection housing 230.
The edge of the first connection shell 220 is provided with a first mounting groove 221, the edge of the second connection shell 230 is provided with a first flange 231, the first flange 231 is engaged with the first mounting groove 221 to form the first diversion pipeline 200, and the flange and the mounting groove are engaged with each other to improve the sealing quality of the connection between the first connection shell 220 and the second connection shell 230, so as to avoid the gas in the first diversion pipeline 200 from leaking from the edges of the first connection shell 220 and the second connection shell 230.
Meanwhile, the first and second connection cases 220 and 230 can be limited by the combination of the flange and the mounting groove, and the connection efficiency between the first and second connection cases 220 and 230 can be improved.
In addition, a plurality of first connectors 222 are disposed on the side wall of the first connecting housing 220, the first connectors 222 are distributed in the circumferential direction of the first connecting housing 220, a plurality of second connectors 232 are disposed on the side wall of the second connecting housing 230, the second connectors 232 are distributed in the circumferential direction of the second connecting housing 230, and each first connector 222 is correspondingly connected with one second connector 232.
It should be noted that the number of the first connectors 222 is equal to the number of the second connectors 232, and at least three are provided. For example, when the number of the first and second connection members 222 and 232 is three, respectively, the connection lines between the three first connection members 222 form a triangle structure to promote the stability of the connection between the first and second connection cases 220 and 230.
Specifically, when the first connecting piece 222 is a protrusion, the second connecting piece 232 is a buckle, and the protrusion can be mutually clamped with the buckle. In addition, in the present embodiment, the first and second connection cases 220 and 230 may also be connected by bolts.
The first guide duct 200 is formed by connecting the first connection housing 220 and the second connection housing 230, so that the first guide duct 200 is easily installed or removed while the inner wall of the first guide duct 200 is easily cleaned.
It should be noted that, the inner wall of the first connection housing 220 and the inner wall of the second connection housing 230 are respectively smooth curved surfaces, so as to reduce noise generated by collision between the gas entering the first guide duct 200 and the inner wall of the first connection housing 220 and the inner wall of the second connection housing 230. Specifically, the curved surface of the first connection case 220 and the curved surface of the second connection case 230 extend toward the first air inlet, respectively, such that the extending directions of the curved surface of the first connection case 220 and the curved surface of the second connection case 230 are the same as the flowing path of the gas in the first guide duct 200, thereby further reducing noise generated during the flowing process of the gas in the first guide duct 200.
As shown in fig. 2 and 3, in some embodiments of the present application, in order to improve the stability of the connection between the first connection housing 220 and the second connection housing 230, at least one limiting groove 223 is provided on the inner wall of the first connection housing 220, and in particular, the limiting groove 223 is located on one side of the first connection housing 220 near the air inlet of the first diversion pipeline 200.
Meanwhile, at least one limiting post 233 is disposed on the inner wall of the second connection housing 230, and the limiting post 233 is located at one side of the second connection housing 230 near the air inlet of the first diversion pipeline 200.
The number of the limit grooves 223 is equal to the number of the limit posts 233, and one limit post 233 is correspondingly inserted into one limit groove 223, so that limit between the first connection housing 220 and the second connection housing 230 is formed by inserting the limit post 233 into the limit groove 223, and connection efficiency between the first connection housing 220 and the second connection housing 230 can be improved.
In an embodiment, the limit groove 223 is an interference fit with the limit post 233.
In addition, when the number of the limit posts 233 and the limit grooves 223 is plural, the limit posts 233 are spaced apart, and the limit grooves 223 are spaced apart.
In this embodiment, the number of the limiting posts 233 and the number of the limiting grooves 223 are not greater than four, respectively, so as to avoid affecting the process of entering the first diversion pipeline 200.
As shown in fig. 2, 4 and 5, in some embodiments of the present application, in order to improve the stability and sealing quality of the connection between the second diversion pipe 300 and the fan 100, a sealing sleeve 400 is disposed between the second diversion pipe 300 and the first air outlet 122 of the fan 100.
As shown in fig. 4 and 5, in some embodiments of the present application, the second guide duct 300 includes a third connection housing 330 and a fourth connection housing 340.
The edge of the third connecting shell 330 is provided with a first connecting table 331, the edge of the fourth connecting shell 340 is provided with a second connecting table 341, and the first connecting table 331 is correspondingly connected with the second connecting table 341 to form the second diversion pipeline 300. Specifically, the first connecting table 331 is matched with the second connecting table 341, and forms a staggered connection, so as to improve the connection efficiency between the connection of the first connecting table 331 and the second connecting table 341, and improve the sealing quality of the connection between the first connecting table 331 and the second connecting table 341.
In addition, the side wall of the third connecting shell 330 is provided with a plurality of spaced third connecting members 332, the plurality of spaced third connecting members 332 are distributed in the circumferential direction of the third connecting shell 330, the side wall of the fourth connecting shell 340 is provided with a plurality of spaced fourth connecting members 342, the plurality of spaced fourth connecting members 342 are distributed in the circumferential direction of the fourth connecting shell 340, and each of the third connecting members 332 is connected corresponding to one of the fourth connecting members 342.
It should be noted that the number of the third connecting members 332 is equal to the number of the fourth connecting members 342, and is at least three. For example, when the number of the third connecting members 332 and the fourth connecting members 342 is three, respectively, the connecting lines between the three third connecting members 332 form a triangle structure to promote the stability of the connection between the third connecting housing 330 and the fourth connecting housing 340.
Specifically, when the number of the third connecting members 332 is plural, the connecting lines of the plural adjacent third connecting members 332 form a polygon, wherein the number of sides of the formed polygon is equal to the number of the third connecting members 332.
The second guide duct 300 is formed by connecting the third connection housing 330 and the fourth connection housing 340 to facilitate the installation or the removal of the second guide duct 300 while cleaning the inner wall of the second guide duct 300.
In the present embodiment, the inner wall of the third connection housing 330 and the inner wall of the fourth connection housing 340 are respectively smooth curved surfaces to reduce noise generated by collision with the inner wall of the third connection housing 330 and the inner wall of the fourth connection housing 340 when the gas enters the second guide duct 300.
Some embodiments of the present application further provide a sweeping robot, which includes a sweeping robot body and the air duct structure.
Wherein the first guide duct 200 of the air duct structure is communicated with a dirt suction pipe in the robot for sweeping, and the second guide duct 300 is communicated with a collecting box in the robot for sweeping, so that dust and foreign matters passing through the outside can be sucked into the collecting box through the air duct structure through the dirt suction pipe.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.

Claims (10)

1. The air duct structure is characterized by comprising a fan, a first diversion pipeline and a second diversion pipeline;
the shell of the fan is provided with a first air inlet and a first air outlet;
the first diversion pipeline is communicated with the first air inlet, and the second diversion pipeline is communicated with the first air outlet;
the caliber of the second air inlet of the first diversion pipeline is larger than that of the first air inlet;
the second diversion pipeline is provided with an acceleration area and a slow flow area, the acceleration area is positioned at one end of the second diversion pipeline, which is close to the first air outlet, and the slow flow area is positioned at one end of the second diversion pipeline, which is far away from the first air outlet;
the caliber of the accelerating area gradually decreases from one end close to the first air outlet to one end far away from the first air outlet;
the caliber of the slow flow region gradually increases from one end close to the accelerating region to one end far away from the accelerating region.
2. The air duct structure of claim 1, wherein a ratio between the length of the acceleration region and the length of the slow flow region is x, and wherein x is in a range of 0.2-1.
3. The duct structure of claim 1, wherein the housing comprises an upper housing and a lower housing;
the outer wall of the upper shell is provided with a plurality of first spacing protrusions at intervals, the outer wall of the lower shell is provided with a plurality of first connecting buckles at intervals, and each first connecting buckle is buckled with one first spacing protrusion to form the shell.
4. The duct structure of claim 1, wherein the first flow conduit comprises a first connection housing and a second connection housing;
the edge of the first connecting shell is provided with a first mounting groove, the edge of the second connecting shell is provided with a first flange, and the first flange is clamped with the first mounting groove to form the first diversion pipeline;
the side wall of the first connecting shell is provided with a plurality of first connecting pieces at intervals, the side wall of the second connecting shell is provided with a plurality of second connecting pieces at intervals, and each first connecting piece is correspondingly connected with one second connecting piece.
5. The air duct structure according to claim 4, wherein the inner wall of the first connecting shell is provided with at least one limit groove, and the inner wall of the second connecting shell is provided with at least one limit post;
the number of the limit grooves is equal to that of the limit columns, and one limit column is correspondingly inserted into one limit groove.
6. The duct structure of any one of claims 1-5, wherein a sealing sleeve is disposed between the second flow conduit and the first air outlet of the enclosure.
7. The air duct structure of any one of claims 1-5, wherein the second flow conduit includes a third connection housing and a fourth connection housing;
the edge of the third connecting shell is provided with a first connecting table, the edge of the fourth connecting shell is provided with a second connecting table, and the first connecting table is correspondingly connected with the second connecting table to form the second diversion pipeline;
the side wall of the third connecting shell is provided with a plurality of third connecting pieces at intervals, the side wall of the fourth connecting shell is provided with a plurality of fourth connecting pieces at intervals, and each third connecting piece is connected corresponding to one fourth connecting piece.
8. The air duct structure according to any one of claims 1 to 5, wherein an inner wall of the acceleration region and an inner wall of the slow flow region are respectively smoothly curved.
9. The duct structure of any one of claims 1-5, wherein the housing is a volute.
10. A sweeping robot comprising a sweeping robot body and the air duct structure of any one of claims 1 to 9.
CN202211604700.2A 2022-12-13 2022-12-13 Air duct structure and sweeping robot Pending CN116803322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211604700.2A CN116803322A (en) 2022-12-13 2022-12-13 Air duct structure and sweeping robot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211604700.2A CN116803322A (en) 2022-12-13 2022-12-13 Air duct structure and sweeping robot

Publications (1)

Publication Number Publication Date
CN116803322A true CN116803322A (en) 2023-09-26

Family

ID=88078552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211604700.2A Pending CN116803322A (en) 2022-12-13 2022-12-13 Air duct structure and sweeping robot

Country Status (1)

Country Link
CN (1) CN116803322A (en)

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