Dust suction device capable of automatically collecting dust

Abstract

A dust suction device capable of automatically collecting dust. The dust suction device comprises a main unit (1), a cover body (2), a first dust collection member (3) and a flow guide member (4), wherein the cover body (2) is sleeved on the outer side of at least part of the main unit (1), and the cover body (2) is provided with a first inlet (21); the first dust collection member (3) is arranged in the cover body (2), and a first dust collection cavity (30) is formed inside the first dust collection member (3); a first cavity (20) in communication with the first inlet (21) is formed between the first dust collection member (3) and the cover body (2), and the first dust collection member (3) is provided with a first dust collection port (31), which communicates the first dust collection cavity (30) with the first cavity (20); and the flow guide member (4) is arranged in the first cavity (20), and the flow guide member (4) guides to the first dust collection port (31) a medium introduced by means of the first inlet (21).

Description

A dust collecting device with automatic dust collection

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311710304.2 and application date December 12, 2023, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to cleaning tool technology, and in particular to a dust suction device that automatically collects dust. Background Art

[0004] Related dust collection devices include a nozzle positioned along the airflow direction and a main unit. To reduce clogging of the main unit, a dust storage chamber is provided surrounding the nozzle. Air and debris within the nozzle rotate under the suction of the main unit, generating centrifugal force that draws them into the dust storage chamber. This dust collection device relies solely on the main unit's suction to collect dust, resulting in poor dust collection performance.

[0005] Summary of the Invention

[0006] In order to solve the related technical problems, an embodiment of the present application provides a dust suction device that automatically collects dust.

[0007] The present invention provides a dust collecting device for automatic dust collection, comprising:

[0008] The main unit has a first airflow channel formed therein;

[0009] A cover body is connected to the front end of the host, and the cover body is provided with a first inlet;

[0010] A first dust collecting assembly is disposed within the cover body, wherein a first dust collecting chamber is formed inside the first dust collecting assembly; a first cavity is formed between the first dust collecting assembly and the cover body, the first cavity is communicated with the first inlet, and the first cavity is communicated with the first air flow channel; the first dust collecting assembly is provided with a first dust collecting port to communicate the first dust collecting chamber with the first cavity;

[0011] A flow guide is provided in the first cavity, and guides the medium introduced by the first inlet to the first dust collecting port.

[0012] In the above solution, in the first direction, the first inlet and the first dust collecting port are respectively arranged at the two ends of the first cavity, and the guide member spirally extends from the first inlet around the first direction to the first dust collecting port.

[0013] In the above solution, one end of the guide member in the extension direction is a first end surface, the first end surface is flush with the first top surface surrounding the first dust collecting port, and the first top surface is perpendicular to the first direction.

[0014] The above scheme also includes:

[0015] A baffle is provided at the first dust collecting port, and the baffle extends from the first cavity to the first dust collecting cavity.

[0016] In the above solution, the extension direction of the guide member near the first dust collecting port intersects with the baffle.

[0017] In the above scheme, the first dust collecting component includes a first dust collecting part and a filter part arranged along a first direction, and the filter part is connected between the main unit and the first dust collecting part; the interior of the first dust collecting part forms the first dust collecting cavity, and the interior of the filter part forms a second cavity, the second cavity is connected to the first cavity, and the second cavity is connected to the first airflow channel.

[0018] In the above scheme, the first dust collecting component is provided with a second opening at one end in the first direction, and the cover body includes: a first side wall, which is hollow inside, and the first side wall is connected to the main unit at one end in the first direction, and the first side wall and the first dust collecting component are spaced apart in the radial direction, and the radial direction is perpendicular to the first direction; a first bottom wall, which is connected to one end of the first side wall in the first direction, and the first bottom wall can detachably close the second opening, and the first side wall, the first bottom wall and the first dust collecting component together form the first cavity, and the first inlet is arranged on the first side wall.

[0019] The above scheme also includes:

[0020] A barrier member is arranged in the cover body, and the barrier member divides the first cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity and the first cavity are connected through a first dust collecting port, and the second sub-cavity is connected to the bottom of the first dust collecting cavity; the bottom of the first dust collecting cavity is away from the main unit in the first direction.

[0021] In the above solution, the cross-sectional area of ​​the second sub-cavity is greater than the cross-sectional area of ​​the first dust collecting cavity; wherein the cross-sectional area is perpendicular to the first direction.

[0022] In the above solution, the cover body is further provided with a second dust collecting cavity, the second dust collecting cavity is connected to the first cavity, and the second dust collecting cavity is arranged outside the first cavity.

[0023] In an embodiment of the present application, a flow guide is provided in the first cavity formed by the first dust collecting component and the cover body, and a first dust collecting port is opened on the first dust collecting component, and a first inlet is opened on the cover body; more media in the first cavity can reach the first dust collecting port from the first inlet faster under the action of the flow guide, and then enter the first dust collecting cavity, thereby improving the dust collecting effect of the dust collecting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0025] FIG2 is an overall cross-sectional view of a dust collecting device according to a first embodiment of the present application;

[0026] FIG3 is a partial perspective view of a dust collecting device according to the first embodiment of the present application;

[0027] FIG4 is a schematic diagram showing the connection between the first dust collecting assembly and the host according to an embodiment of the present application;

[0028] FIG5 is a schematic diagram of debris flow according to an embodiment of the present application;

[0029] FIG6 is a perspective view of a first dust collection assembly according to an embodiment of the present application;

[0030] FIG7 is an overall cross-sectional view of a dust collecting device according to a second embodiment of the present application;

[0031] FIG8 is an overall cross-sectional view of a dust collecting device according to a third embodiment of the present application. DETAILED DESCRIPTION

[0032] An embodiment of the present application provides a dust collection device with automatic dust collection, as shown in FIG1 , the dust collection device includes a main unit 1, a suction nozzle 6 and a cover 2, the cover 2 being connected between the main unit 1 and the suction nozzle 6; the main unit 1 guides the air flow to generate suction; the suction nozzle 6 introduces the outside air. As shown in FIG2 , the dust collection device also includes a first dust collection component 3 and a flow guide 4, the first dust collection component 3 and the flow guide 4 being arranged in the cover 2, and the first dust collection component 3 being connected to the front end 11 of the main unit 1. It can be understood that the interior of the main unit 1 is provided with an air flow guiding device for guiding the air flow (for example, the air flow guiding device is a motor and an impeller) to introduce the air at the front end 11 of the main unit 1 into the interior of the main unit, and the front end 11 of the main unit 1 is the air introduction end of the main unit 1.

[0033] Figures 2 and 3 illustrate the airflow channel arrangement of a dust collection device according to an embodiment of the present application. Specifically, a first airflow channel 10 is formed within the main unit 1, a second airflow channel 60 is formed within the suction nozzle 6, a first dust collection chamber 30 is formed within the first dust collection assembly 3, and a first cavity 20 is formed between the housing 2 and the first dust collection assembly 3. The first dust collection chamber 30 and the first cavity 20 are connected via a first dust collection port 31, which is provided on the first dust collection assembly 3. The first cavity 20 and the second airflow channel 60 are connected via a first inlet 21, which is provided on the housing 2. The first cavity 20 and the first airflow channel 10 are connected in at least two ways: First, through-holes are provided both within the first dust collection assembly 3 and at the front end 11 of the main unit 1, thereby indirectly connecting the first cavity 20 and the first airflow channel 10. Air within the first cavity 20 can then pass through the through-holes within the first dust collection assembly 3 and the through-holes at the front end 11 of the main unit 1 and enter the first airflow channel 10. The second method is to provide a through hole only at the front end of the main unit 1 so that the first cavity 20 and the first air flow channel 10 are directly connected. Then, the air in the first cavity 20 can enter the first air flow channel 10 only through the through hole at the front end 11 of the main unit 1.

[0034] The airflow direction of the dust collection device is indicated by hollow arrows in Figure 2. Specifically, the airflow guide device guides air from outside the dust collection device into the second airflow channel 60, then into the first inlet 21, and then into the first cavity 20. The air introduced into the first cavity 20 is divided into two parts: the first part, as shown in Figure 4, first passes through the first dust collection port 31 and enters the first dust collection cavity 30; then passes through the first dust collection port 31 again and enters the first cavity 20 again; finally, it passes through the internal through-holes of the first dust collection component 3 and the through-holes of the front end 11 of the main body 1, respectively, to enter the first airflow channel 10, or only through the through-holes of the front end 11 of the main body 1. The second part, as shown in Figure 5, passes through the internal through-holes of the first dust collection component 3 and the through-holes of the front end 11 of the main body 1, respectively, to enter the first airflow channel 10, or only through the through-holes of the front end 11 of the main body 1. Finally, the air in the first airflow channel 10 flows out through the rear end 12 of the main body 1.

[0035] In this way, external debris can enter the first cavity 20 along with the flow of air. Since the first cavity 20 is provided with a guide member 4, the guide member 4 guides the medium (which can be air and / or debris) introduced into the first inlet 21 to the first dust collection port 31. In the case where the guide member 4 is not provided in the first cavity 20, the medium in the first cavity 20 repeatedly spirals (repeated spirals, which can be understood as overlapping spiral paths) under the action of the airflow guide device in the main unit 1, and it is difficult to reach the first dust collection port 31. Therefore, compared with the dust collection device without the guide member 4, the dust collection device provided with the guide member 4 not only allows more media to reach the first dust collection port 31 from the first inlet 21, but also shortens the time required for the medium in the first cavity 20 to reach the first dust collection port 31 from the first inlet 21. In other words, the provision of the guide member 4 improves the dust collection effect of the dust collection device.

[0036] The dust collection device of the embodiment of the present application includes a main body, a cover body, a first dust collecting member and a flow guide member, the cover body is sleeved on the outside of at least part of the main body, and the cover body is provided with a first inlet; the first dust collecting member is arranged in the cover body, and the interior of the first dust collecting member forms a first dust collecting cavity; a first cavity connected to the first inlet is formed between the first dust collecting member and the cover body, and the first dust collecting member is provided with a first dust collecting port connected to the first dust collecting cavity and the first cavity; the flow guide member is arranged in the first cavity, and the flow guide member guides the medium introduced by the first inlet to the first dust collecting port. The embodiment of the present application arranges the flow guide member in the first cavity formed by the first dust collecting component and the cover body, and opens the first dust collecting port on the first dust collecting component and opens the first inlet on the cover body; so that more medium in the first cavity can reach the first dust collecting port from the first inlet faster under the action of the flow guide member, and then enter the first dust collecting cavity, thereby improving the dust collection effect of the dust collecting device.

[0037] In the above embodiment, as shown in Figures 2 and 3 , the first direction is indicated by the dashed line a. In the first direction, the first inlet 21 and the first dust collection port 31 are located at opposite ends of the first cavity 20. Therefore, in the first direction, the distance between the first inlet 21 and the first dust collection port 31 is greatest. Therefore, the medium entering the first cavity 20 through the first inlet 21 passes through the area between the first inlet 21 and the first dust collection port 31 before entering the first dust collection port 31. This creates a buffer zone between the first inlet 21 and the first dust collection port 31, reducing the flow rate of the medium reaching the first dust collection port 31. It can be understood that because the density of debris is greater than that of air, the velocity of debris entering through the first inlet 21 decreases less than that of air entering through the first inlet 21 upon reaching the first dust collection port 31. Alternatively, the velocity of air remains virtually unchanged after passing through the buffer zone, while the velocity of debris decreases significantly after passing through the buffer zone. The debris with a reduced flow rate continues to flow and pass through the first dust collecting port 31 (it can be understood that the speed of the debris becomes lower and lower as it continues to flow), and is likely to stay in the first dust collecting chamber 30.

[0038] As shown in Figures 2 and 3, the guide member 4 spirally extends from the first inlet 21 in a first direction to the first dust collection port 31. The extension direction of the guide member 4 is indicated by a dashed line and arrow in the figures, and is labeled "b." One end of the guide member 4 is located near the first inlet 21, while the other end is located near the first dust collection port 31. This allows more debris to reach the first dust collection port 31 from the first inlet 21, thereby reducing the flow rate of more debris.

[0039] The first inlet 21 and the first dust collection port 31 may be located on the same side in the first direction, or on opposite sides thereof; as long as the first inlet 21 is close to one end of the extension direction of the flow guide 4 and the first dust collection port 31 is close to the other end of the extension direction of the flow guide 4. The spiral extension of the flow guide 4 may wrap around a portion of the first dust collection assembly 3, the entire first dust collection assembly 3, or none of the first dust collection assembly 3.

[0040] The embodiment of the present application reduces the flow rate of more debris at the first dust collecting port by limiting the setting positions of the first inlet and the first dust collecting port, and the extension direction of the guide member, thereby helping to concentrate more debris in the first dust collecting chamber.

[0041] In the above solution, as shown in FIG4 , one end of the flow guide 4 in the extension direction is a first end face 41, and the first end face 41 is flush with the first top face 311 that encloses the first dust collecting port 31. Whether they are flush or not can be determined based on whether they are in the same plane. This flushness is not absolutely flush, that is, the first end face 41 may slightly exceed the first top face 311, or may slightly miss the first top face 311. The first top face 311 is perpendicular to the first direction; this perpendicularity is not absolutely perpendicular, that is, the angle between the first top face 311 and the first direction may be 90 degrees, or may be an angle value close to 90 degrees.

[0042] Among them, the first top surface 311 can be a plane or a curved surface; the first end surface 41 can be a plane or a curved surface. If the first top surface 311 and the first end surface 41 are curved surfaces, the thickness of the edge of the first dust collecting port 31 and the thickness of the guide member 4 can be ignored for understanding. When the thickness of the edge of the first dust collecting port 31 is ignored, the first top surface 311 can be regarded as a line segment; when the thickness of the guide member 4 is ignored, the first end surface 41 can be regarded as another line segment. Therefore, the first top surface 311 and the first end surface 41 are flush, which can be understood as the two line segments being flush, that is, the two line segments are in the same plane.

[0043] In the embodiment of the present application, by aligning the first top surface with the first end surface, more debris can enter the first dust collection port. It is understood that if the first end surface significantly exceeds the first top surface, debris can easily fly away. If the first end surface does not reach the first top surface, and the first end surface and the first top surface are significantly different, some debris cannot enter the first dust collection port. Therefore, this leveling arrangement helps improve dust collection efficiency.

[0044] In the above embodiment, as shown in FIG5 , the dust collection device further includes a baffle 5 . The baffle 5 is disposed on the first dust collection opening 31 and divides the first dust collection opening 31 into a first sub-opening 31A and a second sub-opening 31B. The baffle 5 can be a flat plate or a curved plate; the baffle 5 extends from the first cavity 20 to the first dust collection chamber 30 ; the baffle 5 can extend to the inside of the first dust collection chamber 30 , to the sidewall of the first dust collection chamber 30 , or even to the outside of the first dust collection chamber 30 but close to the first dust collection chamber 30 .

[0045] The flow diagram of debris is represented by solid arrows in Figure 5. Specifically, the debris in the first cavity 20 rotates and gradually approaches until it hits the baffle 5. In the process of the debris hitting the baffle 5, the kinetic energy of the debris is lost, that is, the movement speed of the debris is reduced. In addition, the blocking effect of the baffle 5 causes the rotation direction of the debris hitting the baffle 5 to change. Since the baffle 5 extends to the first dust collecting chamber 30, the debris whose speed has been reduced and whose rotation direction has changed continues to rotate under the action of inertia and passes through one of the two sub-ports mentioned above and enters the first dust collecting chamber 30. Of the debris that enters the first dust collecting chamber 30, part of the debris stays in the first dust collecting chamber 30, and the other part of the debris continues to rotate and passes through the other of the two sub-ports mentioned above and flows out of the first dust collecting chamber 30. In this way, after multiple cycles, more debris accumulates in the first dust collecting chamber 30.

[0046] In the embodiment of the present application, a baffle is provided so that debris in the first cavity can enter the first dust collecting chamber after hitting the baffle.

[0047] In the above embodiment, as shown in Figure 5, the extension direction of the flow guide 4 near the first dust collection port 31 intersects with the baffle 5. The baffle 5 has a front face 51 and a back face 52, with the front face 51 facing the first end face 41 and the back face 52 facing away from the first end face 41. Thus, the extension direction of the flow guide 4 intersects with the front face of the baffle 5. Because the flow guide of this embodiment of the application allows more debris to reach the first dust collection port, the intersection of the flow guide's extension direction and the baffle allows more debris to strike the baffle, thereby concentrating more debris within the first dust collection chamber.

[0048] In the above solution, as shown in Figure 4, the first dust collecting assembly 3 includes a first dust collecting member 32 and a filter member 33 arranged along a first direction. As shown in Figure 6, in an embodiment of the present application, the flow guide member 4 can be connected only to the first dust collecting member 32, only to the cover body 2, or simultaneously to the first dust collecting member 32 and the cover body 2.

[0049] As shown in Figures 2 and 6, the interior of the first dust collector 32 forms a first dust collection chamber 30. The interior of the filter 33 is hollow and forms a second cavity 330. The filter 33 is provided with small through-holes to connect the second cavity 330 with the first cavity 20. The filter 33 can prevent at least some debris in the first cavity 20 from entering the second cavity 330, and can allow at least some air in the first cavity 20 to enter the second cavity 330. Exemplarily, the filter 33 is a HEPA filter. The filter 33 is connected between the main unit 1 and the first dust collector 32; the second cavity 330 is connected to the first cavity 20, and the second cavity 330 is connected to the first airflow channel 10.

[0050] As shown in Figure 4, the filter element 33 is connected to the front end 11 of the main unit 1, thereby reducing the risk of blockage within the main unit 1 and protecting the internal components of the main unit 1, extending their service life. Because the end surface area of ​​the front end of the main unit 1 is smaller than the surface area of ​​the filter element 33, the filtering area of ​​the front end 11 of the main unit 1 is increased, that is, the cross-sectional area of ​​the airflow at the front end 11 is increased, which helps to increase the flow rate of the airflow within the dust collection device.

[0051] The embodiment of the present application reduces the risk of host blockage by providing a filter element; and increases the filter surface at the front end of the host, thereby improving the airflow speed and dust collection efficiency of the dust collection device.

[0052] In the above embodiment, as shown in Figure 6 , the outer wall 331 of the filter element 33 is a conical surface, facing both the first inlet 21 and the first dust collector 32. As a result, the medium introduced through the first inlet 21 strikes the outer wall of the filter element 33, rotates around this outer wall 331, and moves to the flow guide 4 outside the first dust collector 32. Therefore, the conical surface of the filter element in this embodiment of the present application allows more debris to move to the flow guide, thereby improving dust collection efficiency.

[0053] In the above scheme, as shown in Figure 6, the guide member 4 is connected to the first dust collecting member 32 and extends around the first dust collecting member 32. At least part of the debris in the first cavity 20 flows along the guide member 4 to the first dust collecting port 31, that is, the debris gradually moves away from the filter member 33, thereby reducing the risk of clogging of the filter member 33.

[0054] In the above embodiment, as shown in FIG5 , the first dust collecting member 32 is provided with a second opening 321 at one end in the first direction. As shown in FIG5 and FIG6 , the cover body 2 includes a first side wall 22 and a first bottom wall 23, wherein the first bottom wall 23 is connected to the first end of the first side wall 22 in the first direction. The first bottom wall 23 detachably closes the second opening 321, which can be understood as follows: the first bottom wall 23 can be connected to the edge of the second opening 321, thereby blocking the second opening 321; the first bottom wall 23 can also be separated from the edge of the second opening 321, thereby opening the second opening 321.

[0055] The first bottom wall 23 detachably closes the second opening 321, which includes at least the following two situations: First, the connection between the first side wall 22 and the first bottom wall 23 is detachable, and the connection between the first side wall 22 and the main unit 1 (as shown in FIG3 ) at one end in the first direction is detachable or integrally formed. Second, the connection between the first side wall 22 and the first bottom wall 23 is integrally formed, and the connection between the first side wall 22 and the main unit 1 (as shown in FIG3 ) at one end in the first direction is detachable.

[0056] As shown in Figure 5 , the interior of the first sidewall 22 is hollow and spaced radially from the first dust collecting assembly 3; the radial direction is perpendicular to the first direction and is indicated by the dashed line c in the figure. As shown in Figure 6 , the first sidewall 22, the first bottom wall 23, and the first dust collecting assembly 3 collectively define a first cavity 20, and the first inlet 21 is disposed on the first sidewall 22.

[0057] In the embodiment of the present application, the first bottom wall is detachably closed to the second opening, thereby facilitating separation of the first bottom wall and the second opening, i.e., conveniently removing the first bottom wall from the second opening to expose the second opening, thereby facilitating pouring out debris in the first dust collecting chamber.

[0058] In the above scheme, as shown in Figures 5 and 6, the baffle 5 is connected to the first side wall 22 and abuts against the first bottom wall 23. The first side wall 22 and the first bottom wall 23 can block the debris hitting the baffle 5, thereby helping the debris to move toward the first dust collecting port 31.

[0059] In the above embodiment, as shown in FIG7 , the dust collection device further includes a barrier member 7 . This barrier member 7 is disposed within the housing 2 and divides the first cavity 20 into a first sub-cavity 201 and a second sub-cavity 202 arranged along a first direction. The first sub-cavity 201 is connected to the first dust collection chamber 30 via a first dust collection port 31 . The second sub-cavity 202 is connected to the bottom of the first dust collection chamber 30 , which is located away from the main unit 1 in the first direction. Thus, debris within the first cavity 20 passes sequentially through the first dust collection port 31 , the first dust collection chamber 30 , and the second sub-cavity 202 . In other words, both the first dust collection chamber 30 and the second sub-cavity 202 are configured to collect debris.

[0060] As shown in FIG7 , since the second sub-chamber 202 is connected to the bottom of the first dust collection chamber 30 and the bottom of the first dust collection chamber 30 is away from the main unit 1 in the first direction, the second sub-chamber 202, the first dust collection chamber 30, and the main unit 1 are arranged sequentially in the first direction. Since the housing 2 is connected to the front end 11 of the main unit 1 and the first dust collection assembly 3 is disposed within the housing 2, the second sub-chamber 202 within the housing 2 and the first dust collection chamber 30 within the first dust collection assembly 3 are both located at the front end 11 of the main unit 1. It is understood that, based on human behavior, when using the dust collection device, the user may point the front end 11 of the main unit 1 toward debris, which is usually on the ground. In this case, the user may point the front end 11 of the main unit 1 downward (i.e., toward the ground). When the front end 11 of the main unit 1 is facing downward, at least some of the debris entering the first dust collection chamber 30 is not only attracted by airflow but also attracted by gravity, thereby enhancing the dust collection effect of the dust collection device.

[0061] In the embodiment of the present application, by adding the second sub-chamber, the dust collection device can also collect dust with the help of gravity, thereby enhancing the dust collection effect.

[0062] In the above embodiment, as shown in FIG7 , the cross-sectional area of ​​the second sub-chamber 202 is larger than that of the first dust collecting chamber 30 ; the cross-sectional area is perpendicular to the first direction. That is, the outer diameter increases and the airflow pressure decreases from the first dust collecting chamber 30 to the second sub-chamber 202 , thereby facilitating the flow of debris from the first dust collecting chamber 30 into the second sub-chamber 202 .

[0063] In the above solution, as shown in Figure 8, the cover body 2 is further provided with a second dust collecting chamber 24, which is connected to the first cavity 20 and is arranged outside the first cavity 20. Specifically, the cover body 2 is provided with a second dust collecting port 241, which connects the first cavity 20 and the second dust collecting chamber 24.

[0064] As shown in Figure 8, debris within the first cavity 20 can pass through the second dust collection port 241 under the action of centrifugal force and enter the second dust collection chamber 24. It can be understood that since the magnitude of centrifugal force is proportional to mass, under the same spiral airflow environment, large debris particles are subject to greater centrifugal force than small debris particles. In other words, large debris particles are more likely to move radially outward than small debris particles. Therefore, large debris particles are more likely to accumulate in the outer second dust collection chamber 24, while small debris particles are more likely to accumulate in the inner first dust collection chamber 30.

[0065] By adding a second dust collecting chamber, the embodiment of the present application enables the dust collection device to be applicable not only to surfaces to be cleaned with small particles of debris, but also to surfaces to be cleaned with large particles of debris, thereby improving the user experience.

[0066] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0067] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0068] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A dust collecting device for automatic dust collection, comprising: A main unit, forming a first air flow channel inside; A cover body connected to the front end of the host, and the cover body is provided with a first inlet; A first dust collecting assembly is arranged in the cover body, and a first dust collecting cavity is formed inside the first dust collecting assembly; a first cavity is formed between the first dust collecting assembly and the cover body, the first cavity is communicated with a first inlet, and the first cavity is communicated with the first air flow channel; the first dust collecting assembly is provided with a first dust collecting port, so that the first dust collecting cavity is communicated with the first cavity; A flow guide is arranged in the first cavity, and is used to guide the medium introduced by the first inlet to the first dust collecting port.

2. The dust collecting device according to claim 1, wherein: In a first direction, the first inlet and the first dust collecting port are respectively arranged at two ends of the first cavity, and the guide member spirally extends from the first inlet around a first direction to the first dust collecting port.

3. The dust collecting device according to claim 2, wherein: One end of the guide member in the extension direction is a first end surface, the first end surface is flush with a first top surface surrounding the first dust collecting port, and the first top surface is perpendicular to the first direction.

4. The dust collecting device according to claim 1, wherein: Also includes: A baffle is arranged at the first dust collecting port, and the baffle extends from the first cavity to the first dust collecting cavity.

5. The dust collecting device according to claim 4, wherein: An extension direction of the guide member near the first dust collecting port intersects with the baffle.

6. The dust collecting device according to claim 2, wherein: The first dust collecting component includes a first dust collecting part and a filter part arranged along a first direction, and the filter part is connected between the main unit and the first dust collecting part; the first dust collecting cavity is formed inside the first dust collecting part, and a second cavity is formed inside the filter part, the second cavity is connected to the first cavity, and the second cavity is connected to the first airflow channel.

7. The dust collecting device according to claim 2, wherein: The first dust collecting assembly is provided with a second opening at one end in the first direction, and the cover body comprises: A first side wall is hollow inside, the first side wall is connected to the main unit at one end in a first direction, the first side wall and the first dust collecting assembly are spaced apart in a radial direction, and the radial direction is perpendicular to the first direction; The first bottom wall is connected to one end of the first side wall in the first direction, the first bottom wall can detachably close the second opening, and the first side wall, the first bottom wall and the first dust collecting assembly together form the first cavity, and the first inlet is arranged on the first side wall.

8. The dust collecting device according to claim 1, wherein: Also includes: A barrier member is arranged in the cover body, and the barrier member divides the first cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity and the first cavity are connected through a first dust collecting port, and the second sub-cavity is connected to the bottom of the first dust collecting cavity; the bottom of the first dust collecting cavity is away from the main unit in the first direction.

9. The dust collecting device according to claim 8, wherein: The cross-sectional area of ​​the second sub-chamber is greater than the cross-sectional area of ​​the first dust collecting chamber; wherein the cross-sectional area is perpendicular to the first direction.

10. The dust collecting device according to claim 1, wherein: The cover body is further provided with a second dust collecting cavity, the second dust collecting cavity is connected with the first cavity, and the second dust collecting cavity is arranged outside the first cavity.

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