CN220344292U - Dust collection structure and dust collection equipment - Google Patents

Abstract

The utility model relates to a dust collection structure and dust collecting equipment, including separation cup and first dust collection cup, the separation cup has the air intake and with the separation chamber of air intake intercommunication, is formed with cyclone separation passageway in the separation chamber, first dust collection cup have first dust collection chamber and with the first dust collection mouth of first dust collection chamber intercommunication, first dust collection mouth and separation chamber intercommunication and be located cyclone separation passageway air current rotary path. The dust solids in the cyclone separation channel can enter the first dust collection cavity through the first dust collection port under the driving of the air flow so as to execute primary air-solid separation operation of the air flow. The separation setting of gas-solid separation operation and dust collection operation is realized, and the solid is collected by first dust collecting cavity, and gaseous only can flow in cyclone separation passageway, can not contact the air current again by the solid after the collection of first dust collecting cavity yet, has reduced the possibility of dust raising again after the dust collection in dust collecting structure, improves user's use experience and feels.

Description

Dust collection structure and dust collection equipment

Technical Field

The application relates to the technical field of household dust removal, in particular to a dust collection structure and dust collection equipment.

Background

The mite-removing instrument is also called a mite-removing dust collector, and is a device which is applied to textiles such as beds, sofas, carpets and the like and is used for cleaning small-diameter impurity particles and the allergens such as bacteria, viruses, mites and the like which are bred.

Generally, when cleaning is performed using an acarid-killing cleaner, a suction inlet of the acarid-killing cleaner contacts a surface to be cleaned, dust, and allergens such as bacteria and mites are sucked into a dust cup through the suction inlet by a fan, and dust and gas are separated.

However, in the conventional mite-killing dust collector, dust deposited in the dust collecting cup after separation has the possibility of re-lifting along with the rotating airflow, so that the dust-gas separation effect is poor, and the use effect of a user cannot be met.

Disclosure of Invention

Based on this, this application is to current mite dust catcher that removes produces the raise dust problem in the dust cup easily, proposes a dust collection structure and dust collecting equipment, and this dust collection structure and dust collecting equipment have that gas-dust separation is effectual, weaken the raise dust, improve the technological effect that the user felt.

The utility model provides a dust collection structure, includes separation cup and first dust collection cup, and the separation cup has the air intake and with the separation chamber of air intake intercommunication, is formed with cyclone separation passageway in the separation chamber, and first dust collection cup has first dust collection chamber and the first dust collection mouth of communicating with first dust collection chamber, and first dust collection mouth communicates and is located cyclone separation passageway air current rotary path with the separation chamber. The dust solids in the cyclone separation channel can enter the first dust collection cavity through the first dust collection port under the driving of the air flow so as to execute primary air-solid separation operation of the air flow.

In one embodiment, the plane of the first dust collection port is tangential to the airflow rotational path of the cyclonic separation passage.

In one embodiment, the dust collection structure further comprises a second dust collection cup body, wherein the second dust collection cup body is provided with a second dust collection cavity and a second dust collection port communicated with the second dust collection cavity;

and the second dust collecting port is positioned at the downstream of the first dust collecting port along the airflow rotating path of the cyclone separation channel, and the airflow entering the second dust collecting cup body through the second dust collecting port rotates in the second dust collecting cavity and performs secondary gas-solid separation operation.

In one embodiment, the dust collection structure is further provided with a first airflow channel, and the separation cavity is communicated with the two dust collection ports through the first airflow channel;

an inlet of the first airflow passage is located downstream of the first dust collection port along the airflow rotational path of the cyclonic separating passage.

In one embodiment, the separation cup comprises a first shell and a second shell, and the second shell is arranged inside the first shell;

the first housing and the second housing define a separation chamber, the first air flow channel flowing within the second housing;

the air inlet and the first dust collecting opening are arranged on the first shell, a first filtering hole is formed in the second shell, and the second filtering hole forms an inlet of the first airflow channel.

In one embodiment, the separation cup further comprises an air deflector, wherein the air deflector is arranged in the separation cavity and extends in a spiral shape;

one end of the air deflector extends to the air inlet and forms the cyclone separation channel with the first shell and the second shell.

In one embodiment, the second dust collecting cup body comprises at least one separation cone, and each separation cone is provided with the second dust collecting port and the second dust collecting cavity;

the separation cone is provided with an air inlet end and a dust collecting end which are oppositely arranged, the second dust collecting opening is arranged at the air inlet end and is arranged along the air inlet end to the dust collecting end, and the cross section size of the separation cone is reduced.

In one embodiment, the separation cone is further provided with an air outlet, the air outlet is located at an air inlet end of the separation cone, the dust collecting structure further comprises an air outlet, the air outlet is arranged on the separation cup body, and the air outlet is communicated with the air outlet.

In one embodiment, the dust collecting structure further comprises a second airflow channel, one end of the second airflow channel is communicated with the airflow outlet, and the other end of the second airflow channel is communicated with the air outlet.

In one embodiment, the air outlet and the air inlet are arranged on the same side of the separation cup body, and the air inlet direction of the air inlet is parallel and opposite to the air outlet direction of the air outlet.

In one embodiment, the separation cup is disposed between the first and second dust cup bodies.

According to another aspect of the present application, there is also provided a dust collection apparatus comprising a fan for drawing an external air flow into the separation cup through the air inlet, and a dust collection structure of any one of the above.

Above-mentioned dust collection structure, the air current that carries the dust gets into the separation intracavity of separation cup through the air intake to along with cyclone separation passageway flows, produces centrifugal force and get rid of the dust solid that has certain quality in the in-process that flows and get rid of first dust collection intracavity dust collection through first dust collection mouth, and gas then continues to flow along cyclone separation passageway, thereby make gas-solid completely separate, the dust solid that first dust collection chamber was collected can not contact the air current again either, reduced the possibility of raise dust, the user experience of improvement user is felt.

Drawings

FIG. 1 is a schematic perspective view of a dust collection structure provided in one or more embodiments;

FIG. 2 is a schematic cross-sectional view of the dust collecting structure provided in FIG. 1;

FIG. 3 is a schematic view of a partial cross-sectional structure of the dust collection structure provided in FIG. 1;

fig. 4 is a schematic plan view of the dust collecting structure provided in fig. 1.

Reference numerals: 100. a dust collection structure; 10. separating the cup body; 11. an air inlet; 12. a separation chamber; 14. a first housing; 15. a second housing; 151. a first filter aperture; 152. a second filter aperture; 16. an air deflector; 18. an air outlet; 20. a first dust cup body; 21. a second dust collection chamber; 22. a second dust collection port; 30. a second dust cup body; 31. a separation cone; 31a, an air inlet end; 31b, a dust collecting end; 311. a first dust collection chamber; 312. a first dust collection port; 313. an air flow outlet; 41. a first airflow passage; 42. a second air flow passage.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, for convenience of description and simplification of description only, and do not indicate or imply that the brush head or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, 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 at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The mite-removing instrument is a special device for cleaning dust on textiles such as beds, sofas, carpets and the like and allergy sources such as bacteria, mites and the like which are bred. When the user uses the mite removing instrument to clean, the dust removing instrument contacts with the cleaned dust-attaching surface, and dust and allergy sources such as bacteria, mites and the like which are bred are sucked into the dust collecting cup in the mite removing instrument through the fan to separate dust and gas.

However, the air inlet that the dust collection cup set up can last the air inlet, and the air current will carry the dust particle that carries and keep in the dust collection cup after carrying and separating, however, in the mite removal appearance course of working, the air inlet can last the air inlet, and the dust of deposit in the dust collection cup before can rise again along with the rotatory air current that gets into afterwards, produces the raise dust in the dust collection cup, leads to the dust gas separation effect poor, and user experience feels reduced.

In order to solve the above problems, referring to fig. 1 to 4, the present application provides a dust collecting structure 100, which includes a separating cup 10 and a first dust collecting cup 20, wherein the separating cup 10 has an air inlet 11 and a separating chamber 12 communicated with the air inlet 11, a cyclone separating channel is formed in the separating chamber 12, the first dust collecting cup 20 has a first dust collecting chamber 311 and a first dust collecting port 312 communicated with the first dust collecting chamber 311, and the first dust collecting port 312 is communicated with the separating chamber 12 and located on the airflow rotating path of the cyclone separating channel. Wherein, the solids in the cyclone separation channel can enter the first dust collection cavity 311 through the first dust collection port 312 under the driving of the air flow, so as to perform a gas-solid separation operation of the air flow.

When the air flow enters the separation cup body 10 from the air inlet 11, the air flow rotates along the cyclone separation channel in the separation cavity 12, and generates rotary centrifugal force while rotating, solid (such as dust) with certain mass is thrown into the first dust collection cavity 311 through the first dust collection port 312 to collect dust, and the gas without mass continues to flow along the given cyclone separation channel, so that the gas and the solid are completely separated.

So, this application sets up separation cup 10 and first dust collection cup 20, has realized the separation setting of gas-solid separation operation and dust collection operation, and the solid is collected by first dust collection chamber 311, and gas only can flow in cyclone separation passageway, and the solid after being collected by first dust collection chamber 311 also can not contact the air current again, has reduced the possibility of dust raising again after the dust collection in dust collection structure 100, improves user's use experience and feels.

Further, the plane of the first dust collecting port 312 is tangential to the airflow rotation path of the cyclone separation channel, i.e. the first dust collecting port 312 is located at a certain tangential position of the airflow rotation path of the cyclone separation channel.

When the airflow does not rotate to the first dust collection port 312 along the cyclone separation channel, the solids with larger mass are blocked by the wall of the separation cup body 10, when the airflow rotates to the first dust collection port 312, the wall disappears, and when the airflow is not blocked by the structure, the solids with larger mass are thrown out of the separation cup body 10 tangentially under the action of centrifugal force and enter the first dust collection cavity 311.

Then, the solids entering the first dust collecting chamber 311 fall freely due to gravity, are accumulated in the first dust collecting chamber 311, and the airflow is driven by the power (the power is the power for driving the airflow into the air inlet 11) to continue to flow along the cyclone separation channel for the next operation.

In one embodiment, the separation cup 10 includes a first housing 14 and a second housing 15, the second housing 15 is disposed inside the first housing 14, the first housing 14 and the second housing 15 define a separation chamber 12, and the air inlet 11 and the first dust collecting opening 312 are disposed on the first housing 14.

After entering the separating chamber 12 surrounded by the first housing 14 and the second housing 15 from the air inlet 11 on the first housing 14, the airflow flows along the cyclone separating channel in the separating chamber 12, and when flowing through the first dust collecting opening 312 formed on the first housing 14, solids in the airflow are thrown out of the first housing 14 and enter the first dust collecting chamber 311 to be collected. While the air flow continues between the first housing 14 and the second housing 15.

Further, the separating cup 10 further includes an air deflector 16, the air deflector 16 is disposed in the separating chamber 12, and one end of the air deflector 16 extends to the air inlet 11 and defines a cyclone separating channel with the first housing 14 and the second housing 15.

The air deflector 16 is spirally wound around the outer periphery of the second casing 15 and is connected with the inner wall of the first casing 14, the separation chamber 12 formed by surrounding the first casing 14 and the second casing 15 defines a spiral cyclone separation channel, and because one end of the air deflector 16 extends to the air inlet 11, air flow entering the separation chamber 12 from the air inlet 11 directly enters the cyclone separation channel.

It will be appreciated that if the airflow along the cyclone separation path rotates along the airflow path, the first housing 14 and the second housing 15 are both closed surfaces, so that the airflow and the solids carried in the airflow continuously flow along the cyclone separation path, and when the wall surface of the first housing 14 is perforated, such as the first dust collecting port 312, the airflow rotates and simultaneously throws the solids into the first dust collecting cavity 311 through the first dust collecting port 312.

Further, the longer the path of the airflow flowing in the cyclone separating passage, the greater the centrifugal force generated, and in order to enhance the separating effect, the first dust collecting port 312 may be disposed at a position relatively rearward of the rotating path of the airflow to secure the gas-solid separating effect.

In one embodiment, the first dust collecting opening 312 and the first dust collecting cavity 311 may be directly defined by the first housing 14, where the first housing 14 forms two separate spaces, and the first space is used for disposing the second housing 15, and the second space is used as the first dust collecting cavity 311, and the first dust collecting opening 312 is disposed on a wall surface between the first space and the second space.

In one embodiment, the dust collecting structure 100 further includes a second dust collecting cup body 30, the second dust collecting cup body 30 having a second dust collecting chamber 21 and a second dust collecting port 22 communicating with the second dust collecting chamber 21, the second dust collecting port 22 being located downstream of the first dust collecting port 312 along the air flow rotation path of the cyclone separating passage, the air flow entering the second dust collecting cup body 30 through the second dust collecting port 22 rotating within the second dust collecting chamber 21 and performing a secondary gas-solid separation operation.

According to the above description, after the gas after the primary gas-solid separation has separated large-particle, large-mass solids in the first dust collecting chamber 311, and then the gas continues to flow along the cyclone separation passage, flows to the second dust collecting port 22 located downstream, enters the second dust collecting chamber 21 through the second dust collecting port 22, rotates in the second dust collecting chamber 21 and performs the secondary gas-solid separation operation, separating small-particle, small-mass solids carried in the gas after the primary gas-solid separation in the second dust collecting chamber 21.

Thus, the second dust cup body 30 is provided to overlap with the first dust cup body 20, providing a dual separation effect, so that the gas-solid separation effect is better.

In one embodiment, the dust collecting structure 100 further has a first air flow channel 41, the separation chamber 12 is in communication with the two dust collecting ports through the first air flow channel 41, and along the air flow rotation path of the cyclone separating channel, the inlet of the first air flow channel 41 is located downstream of the first dust collecting port 312.

Specifically, the first air flow channel 41 serves as a channel for communicating the separation chamber 12 and the second dust collecting port 22, the air inlet 11 enters the separation cup 10, the air after primary air-solid separation continues to flow, enters the cyclone separation channel from the inlet of the first air flow channel 41 into the first air flow channel 41, then continues to flow along the flow direction of the first air flow channel 41 until entering the second dust collecting port 22, and secondary air-solid separation is performed in the second dust collecting chamber 21.

Further, the first airflow channel 41 flows through the inside of the second casing 15, that is, a part or all of the first airflow channel 41 is formed inside the second casing 15, the second casing 15 is provided with a first filtering hole 151, the first filtering hole 151 forms an inlet of the first airflow channel 41, when the gas after primary gas-solid separation flows through the first filtering hole 151, the gas after primary gas-solid separation is separated again, the solid with the mass particles larger than the aperture of the first filtering hole 151 is left in the separation cavity 12, and the gas enters the first airflow channel 41 through the first filtering hole 151 until entering the second dust collecting port 22.

It will be appreciated that the aperture and number of the first filtering holes 151 may be specifically set according to practical situations, which is not limited herein.

In one embodiment, the second dust collecting cup 30 includes at least one separation cone 31, each separation cone 31 is provided with a second dust collecting port 22 and a second dust collecting cavity 21, the separation cone 31 has an air inlet end 31a and a dust collecting end 31b which are oppositely arranged, the second dust collecting port 22 is arranged at the air inlet end 31a, and the cross section of the separation cone 31 is reduced in size along the air inlet end 31a to the dust collecting end 31 b.

The airflow entering the second dust collecting cavity 21 from the second dust collecting port 22 collides with the circumferential side wall of the inner cavity of the separation cone 31 under the action of centrifugal force, and in the process of moving from the air inlet end 31a to the dust collecting end 31b, the collision of the solid shell is more and more dense due to the reduced size of the separation cone 31, so that the airflow falls into the inner wall of the dust collecting end 31b to be collected, and the secondary gas-solid separation is realized.

And, the second dust collection port 22 is arranged at the air inlet end 31a far away from the dust collection end 31b, so that the air inlet position is far away from the dust collected in the second dust collection cavity 21, and secondary dust emission caused by air inlet is avoided.

In one embodiment, the outlet of the first air flow channel 41 may be directly connected to the second dust collecting port 22, or the first air flow channel 41 and the second dust collecting port 22 may be connected to each other by the first housing 14.

Specifically, three separate spaces may be formed directly by the first housing 14, the first space being for disposing the second housing 15 therein, the second space being the first dust collecting chamber 311, and the first dust collecting port 312 being provided on a wall surface between the first space and the second space. The third space is used for accommodating the separation cone 31, and a second filtering hole 152 is arranged on the wall surface between the first space and the third space, at this time, the first air flow channel 41 is formed by the space inside the second shell 15 and part of the third space, and the air flow in the second shell 15 passes through the second filtering hole 152 to enter the third space, and flows in the third space to enter the separation cone 31 from the second dust collecting port 22.

Further, a pipe may be additionally provided, one end of the pipe is abutted against the second filtering hole 152, the other end of the pipe is abutted against the second dust collecting port 22, at this time, the first air flow channel 41 is formed by a space in the second housing 15 and a space in the pipe, and the second filtering hole 152 and the first filtering hole 151 have the same function and are all provided for providing a filtering function again.

In one embodiment, the separation cone 31 is further provided with an air outlet 313, the air outlet 313 is located at the air inlet end 31a of the separation cone 31, the dust collecting structure 100 further includes an air outlet 18, the air outlet 18 is disposed on the separation cup 10, and the air outlet 313 is in communication with the air outlet 18.

Specifically, the air flow entering the second dust collecting cavity 21 from the second dust collecting port 22 enters from the air inlet end 31a, the solids fall onto the inner wall of the dust collecting end 31b and are collected, and the air is directly discharged from the air inlet end 31a far away from the solids, so that the air flow is prevented from blowing the solids again, and the possibility of secondary dust in the second separation cavity 12 is reduced.

The air inlet 11 and the air outlet 18 of the dust collecting structure 100 are two air outlets of the dust collecting structure 100 communicated with the outside, and are arranged on the separation cup body 10, so that the installation of the dust collecting structure 100 is relatively simple, and the arrangement positions of the pipelines communicated with the air inlet 11 and the air outlet 18 are relatively concentrated, thereby realizing compact structure.

Further, the air outlet 18 and the air inlet 11 are arranged on the same side of the separation cup 10, the air inlet direction of the air inlet 11 is parallel to and opposite to the air outlet direction of the air outlet 18, at this time, the air inlet 11 and the air outlet 18 can be arranged on a side wall surface of the first shell 14, the opening direction of the air inlet 11 is parallel to the opening direction of the air outlet 18, and the pipeline communicated with the air inlet 11 and the pipeline communicated with the air outlet 18 can be arranged in parallel, so that the structure is more reasonable.

In one embodiment, the dust collecting structure 100 further includes a second airflow channel 42, one end of the second airflow channel 42 is communicated with the airflow outlet 313, and the other end is communicated with the air outlet 18, and the second airflow channel 42 is used for guiding the clean gas that has undergone the secondary gas-solid separation out of the dust collecting structure 100 through the air outlet 18.

Specifically, the second air flow passage 42 is a separately provided passage, which may be formed by providing a duct or the like in the first housing 14, which is not limited herein.

In one embodiment, the separating cup 10 is arranged between the first dust cup 20 and the second dust cup 30. At this time, the dust collecting structure 100 can be provided with air in the middle and air out in the middle

After that, the primary gas-solid separation and the secondary gas-solid separation are achieved by separating the first dust cup body 20 and the second dust cup body 30 at the left and right sides of the cup body 10.

According to another aspect of the application, a dust collection device is also provided, which can be a structure of an acarid removal instrument, a common dust collector and the like. The dust collection apparatus comprises a fan for drawing an external air flow into the dust collection structure 100 through the air inlet 11, and the dust collection structure 100 in any of the above embodiments.

The fan is a powered component that is capable of driving the solids laden air stream from the air inlet 11 into the dust collection structure 100 and also capable of driving the secondary gas-solids separated air stream from the air outlet 18 out of the dust collection structure 100.

In practical application, when the dust collection device needs to collect dust at a certain position to be cleaned, the fan is turned on, after the air inlet 11 is aligned to the position to be cleaned, the fan draws air and sucks dust solids at the position to be cleaned, the dust solids enter the dust collection structure 100 together with air flow to perform gas-solid separation, and then are discharged out of the dust collection structure 100 from the air outlet 18, so that the dust collection process is completed.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (12)

1. A dust collection structure, comprising:

the separating cup body (10) is provided with an air inlet (11) and a separating cavity (12) communicated with the air inlet (11), and a cyclone separating channel is formed in the separating cavity (12);

a first dust collecting cup body (20) provided with a first dust collecting cavity (311) and a first dust collecting port (312) communicated with the first dust collecting cavity (311), wherein the first dust collecting port (312) is communicated with the separation cavity (12) and is positioned on an airflow rotating path of the cyclone separation channel;

wherein, the solid in the cyclone separation channel can enter the first dust collection cavity (311) through the first dust collection port (312) under the drive of the air flow so as to execute the primary gas-solid separation operation of the air flow.

2. The dust collection structure of claim 1, wherein the plane of the first dust collection port (312) is tangential to the airflow rotational path of the cyclonic separation channel.

3. The dust collection structure according to claim 1, wherein the dust collection structure (100) further comprises a second dust collection cup body (30), the second dust collection cup body (30) having a second dust collection chamber (21) and a second dust collection port (22) in communication with the second dust collection chamber (21);

the second dust collecting port (22) is positioned at the downstream of the first dust collecting port (312) along the airflow rotating path of the cyclone separation channel, and the airflow entering the second dust collecting cup body (30) through the second dust collecting port (22) rotates in the second dust collecting cavity (21) and performs secondary gas-solid separation operation.

4. A dust collecting structure according to claim 3, characterized in that the dust collecting structure (100) further has a first air flow passage (41), the separation chamber (12) being in communication with the two dust collecting openings through the first air flow passage (41);

an inlet of the first airflow passage (41) is located downstream of the first dust collection port (312) along the airflow rotation path of the cyclonic separating passage.

5. The dust collection structure according to claim 4, wherein the separation cup (10) comprises a first housing (14) and a second housing (15), the second housing (15) being provided inside the first housing (14);

-the first housing (14) and the second housing (15) define a separation chamber (12), the first air flow channel (41) flowing through inside the second housing (15);

the air inlet (11) and the first dust collecting port (312) are arranged on the first shell (14), a first filtering hole (151) is formed in the second shell (15), and the first filtering hole (151) forms an inlet of the first airflow channel (41).

6. The dust collection structure according to claim 5, wherein the separation cup (10) further comprises an air deflector (16), the air deflector (16) being provided in the separation chamber (12) and extending helically;

one end of the air deflector (16) extends to the air inlet (11) and forms the cyclone separation channel together with the first shell (14) and the second shell (15).

7. A dust collecting structure according to claim 3, characterized in that the second dust collecting cup body (30) comprises at least one separation cone (31), each separation cone (31) being provided with the second dust collecting opening (22) and the second dust collecting chamber (21);

the separation cone (31) is provided with an air inlet end (31 a) and a dust collecting end (31 b) which are oppositely arranged, the second dust collecting opening (22) is arranged at the air inlet end (31 a), and the cross section size of the separation cone (31) is reduced from the air inlet end (31 a) to the dust collecting end (31 b).

8. The dust collection structure according to claim 7, wherein the separation cone (31) is further provided with an air flow outlet (313), the air flow outlet (313) is located at an air inlet end (31 a) of the separation cone (31), the dust collection structure (100) further comprises an air outlet (18), the air outlet (18) is arranged on the separation cup (10), and the air flow outlet (313) is communicated with the air outlet (18).

9. The dust collection structure according to claim 8, wherein the dust collection structure (100) further comprises a second air flow passage (42), one end of the second air flow passage (42) communicates with the air flow outlet (313), and the other end communicates with the air outlet (18).

10. The dust collecting structure according to claim 8, wherein the air outlet (18) and the air inlet (11) are arranged on the same side of the separation cup body (10), and the air inlet direction of the air inlet (11) is parallel and opposite to the air outlet direction of the air outlet (18).

11. A dust collecting structure according to claim 3, characterized in that the separating cup (10) is arranged between the first dust collecting cup (20) and the second dust collecting cup (30).

12. A dust collection apparatus, characterized by comprising a fan and a dust collection structure (100) according to any one of claims 1-11;

the fan is used for sucking external air flow into the separation cup body (10) through the air inlet (11).