WO2020077561A1

WO2020077561A1 - Dust removal structure, waste container, and cleaning robot

Info

Publication number: WO2020077561A1
Application number: PCT/CN2018/110645
Authority: WO
Inventors: 张学东
Original assignee: 深圳市智意科技有限公司
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-04-23
Also published as: CN209899270U

Abstract

A dust removal structure comprises a dust collection cylinder (221) and an exhaust tube (222). The dust collection cylinder has a dust collection cavity (2211) and an air guide cavity (2212) guiding an airflow (W) to form a vortex. The dust collection cavity is disposed at a lateral side of the air guide cavity at an interval. Two first air inlets (2213) and multiple dust collection openings (2214) are provided at a cylinder wall of the dust collection cylinder. The first air inlets are in communication with an upper section of the air guide cavity, and the dust collection openings are in communication with a lower section of the air guide cavity and the dust collection cavity. A waste container (20) comprises the dust removal structure. A cleaning robot (1) comprises a main unit and the waste container. The air guide cavity of the dust removal structure is used to guide an incoming airflow entering the first air inlets, and carrying dust and hair to circulate through the exhaust tube in a swirling manner, such that a centrifugal force generated during the swirling movement of the airflow pushes the dust and hair into the dust collection cavity, thereby cleaning the airflow, and resolving the problem in which fine dust and hair are stuck on a filter screen and cause clogging thereof.

Description

Dust removal structure, dustbin and cleaning robot

Technical field

The present application belongs to the technical field of cleaning equipment, and more specifically, relates to a dust removing structure, a dustbin and a cleaning robot.

Background technique

Environmental sanitation is one of the important factors that affect the quality of life. Therefore, with the continuous improvement of people's quality of life requirements, the corresponding requirements for environmental sanitation are also getting higher and higher. However, the work pressure and the rapid increase of modern people are urgently needed. Liberated from the heavy cleaning work, so many cleaning equipment appeared to improve environmental hygiene.

At present, the most common cleaning equipment in the market is various cleaning robots. Among them, sweeping is one of the main cleaning functions of cleaning robots. During the sweeping process, the cleaning robot mainly sucks various sizes of garbage and dust in the environment through the suction of the exhaust fan However, some smaller dust and hair will adhere to the filter, causing the filter to block, which affects the service life of the filter and the suction power of the exhaust fan.

technical problem

The purpose of the present application is to provide a dust removal structure, a dust bin and a cleaning robot to solve the technical problem that small dust and hairs will adhere to the filter mesh and cause the filter mesh to become clogged.

Technical solution

This application provides a combined spectacle frame, including:

A dust collecting cylinder, the dust collecting cylinder has a dust collecting cavity and a wind guiding cavity for guiding the airflow to form a cyclone, the dust collecting cavity is arranged at a side of the wind guiding cavity at intervals, and the wall of the dust collecting cylinder There are two first air inlets and a plurality of dust collection openings on the upper side, the two first air inlets are oppositely arranged, and the centerlines of the two first air inlets on the same cross section of the dust collection cylinder are not on the same straight line, so The first air inlet is in communication with the top section of the air guide cavity, and the dust collection port is in communication with the bottom section of the air guide cavity and the dust collection cavity; and

The exhaust pipe extends into the air guiding cavity, and opposite ends of the exhaust pipe are respectively provided with a second air inlet and a first air outlet for communicating with the exhaust fan. The second air inlet is located in the bottom section of the air guiding cavity.

Further, the cross-sectional area of the top section of the air guiding cavity is larger than the cross-sectional area of the bottom section of the air guiding cavity.

Further, the dust removing structure further includes a filter cover covering the first air inlet.

The present application also provides a garbage bin, which includes a bin body and the above dust removal structure, and the dust collection tube and the exhaust pipe are disposed in the bin body.

Further, the box includes:

A first split body, the first split body is integrally formed with the exhaust pipe, and an exhaust channel is provided on the first split body; and

A second split, the second split is located on the bottom side of the first split, the second split and the first split are respectively covered at opposite ends of the dust collecting cylinder, and A third air inlet is opened on the second split body;

Wherein, the first divided body and the second divided body are combined to form a first accommodating cavity and a second accommodating cavity, and the second accommodating cavity is spaced apart beside the first accommodating cavity , The dust collecting cylinder is located in the first accommodating cavity, the third air inlet communicates with the first accommodating cavity, and the air extraction channel communicates with the first air outlet of the air extraction pipe and the The second accommodating cavity.

Further, a first cleaning port is opened on the first split body, the first cleaning port communicates with the exhaust channel, and a first box cover is sealed on the first cleaning port.

Further, a second cleaning port is opened on the second split body, the second cleaning port communicates with the first accommodating cavity, and a second box cover is sealed on the second cleaning port.

Further, the trash can also includes:

An exhaust fan installed in the second accommodating cavity; and

A filter set, which is installed between the exhaust channel and the second accommodating cavity.

Further, the filter screen group includes a first filter screen and a second filter screen that are arranged in order from the side where the extraction channel is located to the side where the extraction fan is located.

The present application also provides a cleaning robot, which includes a host and the above-mentioned trash bin, and the trash bin is installed on the rear side of the host.

Beneficial effect

The beneficial effect of the combined spectacle frame provided by the present application is that: a dust collecting tube is used in conjunction with an exhaust pipe, and the air flow with dust and hair entering the first air inlet is guided by the air guide cavity and spirally flows around the exhaust pipe, The airflow generates centrifugal force in the process of spiral flow, throwing dust and hair from the dust collection port into the dust collection chamber, thereby achieving clean airflow, effectively solving the problem that small dust and hair will adhere to the filter net, The technical problems that lead to filter clogging extend the service life of the filter and reduce the suction loss of the exhaust fan.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only for the application For some embodiments, for those of ordinary skill in the art, without paying creative labor, other drawings may be obtained based on these drawings.

FIG. 1 is a schematic diagram of a combination of a cleaning robot provided by an embodiment of this application;

2 is a schematic cross-sectional view of a cleaning robot provided by an embodiment of the present application;

FIG. 3 is a three-dimensional exploded schematic view of a garbage bin provided by an embodiment of this application;

4 is a schematic cross-sectional view along the I-I direction in FIG. 1;

FIG. 5 is a schematic top cross-sectional view of a garbage can provided by an embodiment of the present application;

6 is a schematic cross-sectional view of the bottom of the trash bin provided by an embodiment of the present application;

7 is a schematic diagram of the working principle of the dust removal structure provided by the embodiment of the present application.

Among them, the reference signs in the figure:

1—Cleaning robot, 10—Host, 20—Garbage bin, 21—Box, 23—Exhaust fan, 24—Filter set, 211—First split, 212—Second split, 213—First housing Cavity, 214—second housing cavity, 215—first tank lid, 216—second tank lid, 221—dust collector, 222—exhaust pipe, 223—filter hood, 241—first filter screen, 242— Second filter, 2111—exhaust channel, 2112—second air outlet, 2120—third air inlet, 2211—air guide cavity, 2212—dust collection chamber, 2213—first air inlet, 2214—dust collection outlet, 2221 — The second air inlet, 2222 — The first air outlet, W— Airflow.

Embodiments of the invention

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear, the following describes the present application in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "Bottom", "Inner", "Outer" and other orientations are based on the orientation or positional relationship shown in the drawings, only to facilitate the description of this application and simplify the description, not to indicate or imply the device Or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present application.

In addition, the terms "first", "second", etc. are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

Please refer to FIG. 2 to FIG. 7, the dust removing structure for the dustbin 20 provided by the present application will now be described. The dust removing structure includes a dust collecting tube 221 and an exhaust pipe 222, wherein the dust collecting tube 221 includes an air guiding cavity 2211 and The dust collection chamber 2212 is arranged at the side of the air guide cavity 2211 at intervals. The air guide cavity 2211 is used to guide the airflow W to form a cyclone. Two first air inlets 2213 and Several dust collecting ports 2214 and two first air inlets 2213 are oppositely arranged, and the center lines of the two first air inlets 2213 on the same cross section of the dust collecting cylinder 221 are not on the same straight line, that is, in the same air guiding cavity 2211 The midlines of the two first air inlets 2213 in the cross section intersect or are parallel. Specifically, the first air inlet 2213 communicates with the top section of the air guide cavity 2211, and the dust collection port 2214 communicates with the bottom section of the air guide cavity 2211 and the dust collection The cavity 2212, that is, the dust collection cavity 2212 communicates with the air guide cavity 2211 through the dust collection port 2214; the exhaust pipe 222 extends into the air guide cavity 2211, and opposite ends of the exhaust pipe 222 are respectively provided with second air inlets 2221 and The first air outlet 2222, the first air outlet 2222 is used to connect the exhaust fan 23, the second air inlet 2 221 is located in the bottom section of the air guide cavity 2211. It can be understood that the second air inlet 2221 is equivalent to the air outlet of the dust collecting cylinder 221, and the exhaust pipe 222 leads from the top section of the air guide cavity 2211 to the bottom section of the air guide cavity 2212 The extension is used to guide the airflow W entering the dust collection cylinder 221 to flow out; “several” refers to at least one, and “cross section” refers to a cross section perpendicular to the central axis of the dust collection cylinder 221.

Please refer to FIG. 2 and FIG. 7, the specific working principle of the dust removal structure is: during the operation of the garbage bin 20, the exhaust fan 23 starts, and a negative pressure is formed outside the first air outlet 2222 of the exhaust pipe 222. Under the effect of the difference, the small-weight, small-sized dust and small-weight, short-length hair flow with the airflow W, and the airflow W first enters the top section of the air guide cavity 2211 from the two first air inlets 2212 arranged oppositely, around The exhaust pipe 222 rotates to form a cyclone, and then spirally flows along the exhaust pipe 222 from the top section of the air guide cavity 2211 to the bottom section of the air guide cavity 2211. At this time, the airflow W generates centrifugal force during the spiral flow, which will be carried Dust and hair are thrown into the dust collecting chamber 2212 from the dust collecting port 2214, and the dust and hair are gradually deposited in the dust collecting chamber 2212, thereby cleaning the airflow W, and then the clean airflow W flows into the exhaust air from the second air inlet 2221 The pipe 222 flows from the first air outlet 2222 to the exhaust fan 23.

Compared with the prior art, the dust-removing structure provided by the present application has the beneficial effect that the dust collecting tube 221 is used in cooperation with the exhaust pipe 222, and is guided into the first air inlet 2213 through the air guide cavity 2211 and carries dust and hair The airflow W spirally flows around the exhaust pipe 222, and the airflow W generates centrifugal force during the spiral flow, throwing dust and hair from the dust collection port 2214 into the dust collection chamber 2212, thereby realizing the clean airflow W and effectively solving In addition, due to the small dust and hair sticking to the filter, the technical problem of clogging of the filter is extended, the service life of the filter is extended, and the suction loss of the exhaust fan is reduced.

Further, please refer to FIG. 2, FIG. 4 and FIG. 5, as a specific embodiment of the dust removing structure provided by the present application, the cross-sectional area of the top section of the air guide cavity 2211 is larger than the cross-section of the bottom section of the air guide cavity 2211 Area. When the airflow W spirally flows along the exhaust pipe 222 from the top section of the air guide cavity 2211 to the bottom section of the air guide cavity 2211, the cross-sectional area changes from large to small, and the flow velocity of the airflow W increases rapidly, thereby making the airflow W The increased centrifugal force generated by the rotation better throws smaller dust and hair from the dust collection port 2214 into the dust collection chamber 2212, which improves the efficiency of dust removal.

Preferably, please refer to FIG. 5 and FIG. 7, as a specific embodiment of the dust removing structure provided by the present application, the outer contour of the top section of the air guiding cavity 2211 is S-shaped, and the outer contour of the bottom section of the air guiding cavity 2211 is O shape. Specifically, the two first air inlets 2213 are respectively opened at the first and last ends of the S-shaped top section, so that the airflow W that enters the top section of the air guide cavity 2211 from the two first air inlets 2213 surrounds the top section cavity wall The suction pipe 222 rotates and flows, that is, the top section of the air guide cavity 2211 functions to guide the airflow W to form a cyclone, and the bottom section of the air guide cavity 2211 functions to collect the airflow W.

Further, please refer to FIG. 2 to FIG. 4 and FIG. 6. As a specific implementation of the dust removing structure provided by the present application, the dust removing structure includes a filter cover 223, and the filter cover 223 is covered on the first air inlet 2221. Specifically, the filter cover 223 can be independently provided, and is bonded, clamped, or screwed with the exhaust pipe 222. The filter cover 223 can also be integrally formed with the exhaust pipe 222; a plurality of grid holes are formed on the filter cover 223 , Used to block hair and prevent hair from entering the exhaust pipe 222.

Please refer to FIG. 1 to FIG. 6, the present application also provides a garbage bin 20 for cleaning the robot 1. The garbage bin 20 includes a box body 21 and a dust removing structure.体 21 内。 Body 21.

Further, please refer to FIG. 2 to FIG. 6, as a specific embodiment of the garbage bin provided by the present application, the above-mentioned bin 21 includes a first divided body 211 and a second divided body 212, wherein the first divided body 211 and The second split bodies 212 are respectively covered at opposite ends of the dust collecting cylinder 221, so that the airflow W can only enter the dust collecting cylinder 221 from the first air inlet 2213, and flow out of the dust collecting cylinder 221 from the second air inlet 2221. The body 211 is integrally formed with the exhaust pipe 222, which effectively reduces the accessories of the trash bin 20 and reduces the difficulty of assembling the trash bin 20, and an exhaust channel 2111 is provided on the first split body 211, and the second split body 212 is located on the first The bottom side of the one divided body 211, and a third air inlet 2120 is opened on the second divided body 212; here, the first divided body 211 and the second divided body 212 are combined to form a first accommodating cavity 213 and a second The accommodating cavity 214, wherein the second accommodating cavity 214 is spaced apart from the first accommodating cavity 213, the dust collecting cylinder 221 is located in the first accommodating cavity 213, the third air inlet 2120 and the first accommodating cavity 213 is connected, and the air extraction channel 2111 is connected to the first air outlet 2221 of the air extraction pipe 222 and the second accommodating cavity 214. Specifically, when the airflow W carries a large amount of dust and hair from the third air inlet 2120 into the first accommodating cavity 213, the flow velocity of the airflow W will rapidly decrease, thereby making the heavy-weight and bulky dust and heavy-weight and long-length Of the hair is deposited in the space outside the dust collection tube 221 under its own gravity, and the small weight, small volume of dust and small weight, short length of hair will continue to enter the dust collection tube 221 from the first air inlet 2213 with the airflow W In the air guide cavity 2211, and enters into the dust collection cavity 2212 of the dust collecting cylinder 221 under the action of the centrifugal force of the airflow W, and then the clean airflow W flows through the second air inlet 2221, the first air outlet 2222 and the air extraction channel 2111 in sequence Second accommodating cavity 214. In this way, the airflow W entering the second accommodating cavity 214 is further purified.

Further, please refer to FIG. 2 to FIG. 4, as a specific embodiment of the garbage bin provided by the present application, a first cleaning port is opened on the first sub-body 211, and the first cleaning port communicates with the exhaust channel 2111 , And a first tank lid 215 is sealed on the first cleaning port. Specifically, the first tank cover 215 is hinged to the first split body 211. When the first tank cover 215 is opened, the exhaust duct 2111 and the exhaust duct 222 can be conveniently cleaned. When the first tank cover 215 is closed, the exhaust duct can be sealed 2111.

Further, please refer to FIG. 2 to FIG. 4, as a specific embodiment of the garbage bin provided by the present application, a second cleaning port is provided on the second split body 212, the second cleaning port and the first accommodation The cavity 213 is in communication, and a second tank lid 216 is sealed on the second cleaning port. Specifically, the second tank cover 216 is hinged with the second split body 212, when the second tank cover 216 is opened, it is convenient to clean the first accommodating cavity 213 and the dust collecting cylinder 221 is removed for cleaning, when the second tank cover When 216 is closed, the first receiving cavity 213 can be sealed.

Further, please refer to FIG. 2, FIG. 3, FIG. 5 and FIG. 6, as a specific embodiment of the garbage bin provided by the present application, the above garbage bin 20 further includes an exhaust fan 23 and a filter group 24, wherein the exhaust fan 23 is installed in the second accommodating cavity 214, and the filter group 24 is installed between the exhaust channel 2111 and the second accommodating cavity 214, that is, the filter group 24 is used to block the exhaust channel 2111 and the second accommodating cavity 214. Specifically, the suction fan 23 may form a negative pressure on one side of the filter group 24, so that the airflow W flows from the suction channel 2111 through the filter group 24 to the second accommodating cavity 214; here, the top of the filter group 24 extends into In the above first cleaning port, when the first tank cover 215 is opened, the filter group 24 can be drawn out between the air extraction channel 2111 and the second accommodating cavity 214, which facilitates cleaning and replacement of the filter group 24. It can be understood that a second air outlet 2112 is provided on the first split body 211, and the second air outlet 2112 communicates with the second accommodating cavity 214 for the outflow of the airflow W and the heat dissipation of the exhaust fan 23.

Further, please refer to FIG. 3, as a specific embodiment of the garbage bin provided by the present application, the above filter set 24 includes a first filter 241 and a second filter 242, specifically, the first filter 241 and the second The two filter screens 242 are arranged in order from the side of the exhaust channel 2111 to the side of the exhaust fan 23, the first filter screen 241 is used to filter a large volume of dust, and the second filter screen 242 is used to filter a small volume of dust, thereby improving the The dust removal effect of the dust bin 20, and effectively prevent dust from adhering to the exhaust fan 23, prolonging the service life of the exhaust fan 23.

Compared with the prior art, the dust bin 20 provided by the present application has the beneficial effect of adopting a dust-removing structure, guiding the airflow from the first air inlet 2213 through the air guide cavity 2211 and carrying the airflow with dust and hair around the exhaust pipe 222 spiral flow, the airflow W generates centrifugal force during the spiral flow, throwing dust and hair from the dust collection port 2214 into the dust collection chamber 2212, thereby further purifying the airflow W, effectively solving the problem due to smaller dust and hair It will stick to the filter net and lead to the technical problems of clogging of the filter net, extending the service life of the filter net and reducing the suction loss of the exhaust fan.

Referring to FIG. 1, the present application also provides a cleaning robot 1 including a host 10 and a trash bin 20. The trash bin 20 is installed on the rear side of the host 10.

Compared with the prior art, the cleaning robot 1 provided by the present application has the beneficial effect that: a dust bin 20 with a dust removing structure is adopted, and the air flow that enters from the first air inlet 2213 and carries dust and hair is guided through the air guide cavity 2211 W flows spirally around the exhaust pipe 222, and the airflow W generates centrifugal force during the spiral flow, throwing dust and hair from the dust collection port 2214 into the dust collection chamber 2212, thereby further purifying the airflow W, which effectively solves the problem Small dust and hair will stick to the filter net, leading to technical problems of filter blockage, extending the service life of the filter, reducing the suction loss of the exhaust fan, and ensuring the cleaning efficiency of the cleaning robot.

The above are only the preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement and improvement made within the spirit and principle of this application should be included in the protection of this application Within range.

Claims

Dust-removing structure, used for garbage bins, characterized in that the dust-removing structure includes:

A dust collecting cylinder, the dust collecting cylinder has a dust collecting cavity and a wind guiding cavity for guiding the airflow to form a cyclone, the dust collecting cavity is arranged at a side of the wind guiding cavity at intervals, and the wall of the dust collecting cylinder There are two first air inlets and a plurality of dust collection openings on the upper side, the two first air inlets are oppositely arranged, and the centerlines of the two first air inlets on the same cross section of the dust collection cylinder are not on the same straight line, so The first air inlet is in communication with the top section of the air guide cavity, and the dust collection port is in communication with the bottom section of the air guide cavity and the dust collection cavity; and

The exhaust pipe extends into the air guiding cavity, and opposite ends of the exhaust pipe are respectively provided with a second air inlet and a first air outlet for communicating with the exhaust fan. The second air inlet is located in the bottom section of the air guiding cavity.
The dust-removing structure according to claim 1, wherein the cross-sectional area of the top section of the air guide cavity is larger than the cross-sectional area of the bottom section of the air guide cavity.
The dust-removing structure according to claim 1 or 2, wherein the dust-removing structure further comprises a filter cover that covers the first air inlet.
A trash bin for cleaning robots, characterized in that the trash bin includes a box body and the dust-removing structure according to any one of claims 1 to 3, and the dust collecting cylinder and the exhaust pipe are provided in the box in vivo.
The trash bin according to claim 4, wherein the bin includes:

A first split body, the first split body is integrally formed with the exhaust pipe, and an exhaust channel is provided on the first split body; and

A second split, the second split is located on the bottom side of the first split, the second split and the first split are respectively covered at opposite ends of the dust collecting cylinder, and A third air inlet is opened on the second split body;

Wherein, the first divided body and the second divided body are combined to form a first accommodating cavity and a second accommodating cavity, and the second accommodating cavity is spaced apart beside the first accommodating cavity , The dust collecting cylinder is located in the first accommodating cavity, the third air inlet communicates with the first accommodating cavity, and the air extraction channel communicates with the first air outlet of the air extraction pipe and the The second accommodating cavity.
The garbage bin according to claim 5, wherein a first cleaning port is opened on the first split body, the first cleaning port communicates with the exhaust channel, and the first cleaning port is sealed with a cover There is the first box cover.
The garbage bin according to claim 6, wherein a second cleaning port is opened on the second split body, the second cleaning port communicates with the first accommodating cavity, and the second cleaning The upper lid is sealed with a second box lid.
The trash can according to any one of claims 5 to 7, wherein the trash can further comprises:

An exhaust fan installed in the second accommodating cavity; and

A filter set, which is installed between the exhaust channel and the second accommodating cavity.
The dust removing structure according to claim 8, wherein the filter screen group includes a first filter screen and a second filter screen arranged in order from the side where the exhaust passage is located to the side where the exhaust fan is located.
The cleaning robot is characterized in that it includes a host and the trash bin according to any one of claims 4 to 9, and the trash bin is installed on the rear side of the host.