Cleaning equipment

Abstract

The embodiment of the utility model provides a cleaning equipment, including host and base station, the host can be placed on the base station, the host includes dust collection fan, cavity and dust collection air duct, the cavity is located below the dust collection fan, and the suction end of the dust collection fan is communicated with the cavity, the dust cup is installed below the cavity, and the dust collection air duct is communicated with the dust collection fan. The dust cup is communicated with a dust collection pipeline, and the cavity chamber is provided with a dust collection opening communicated with the dust cup; the dust collection device further comprises an air duct switching mechanism which controls opening and closing of the dust collection opening. When the host is placed on the base station, the two ends of the dust collection pipeline communicate with the end, away from the cavity chamber, of the dust collection air duct and the normally-closed door correspondingly, opening and closing of the dust collection opening are controlled through the air duct switching mechanism, a user can complete air duct switching during interaction between the base station and the cleaning equipment without manual operation, convenience and rapidness are achieved, and the user experience feeling is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, and in particular relates to a cleaning device. Background Technology

[0002] Currently, there are various ways to switch the air duct when cleaning equipment interacts with base stations. Some air ducts open and close vertically, while others open by rotating. Most of these air duct switching methods will affect the smoothness of the air duct, reduce the air performance of the cleaning equipment, and reduce cleaning efficiency.

[0003] The design of the air duct is crucial to the cleaning performance of cleaning equipment. Excessive twists and turns or obstructions within the duct will directly impact its cleaning performance. For dual-duct vacuum cleaners with switchable ducts, the smoothness of the airflow before and after switching will directly affect the vacuum cleaner's performance.

[0004] For example, the utility model patent CN220675899U describes a vacuum cleaner with a self-cleaning function. The upper end of the dust cup has an air inlet on the side facing the power source. A sealing element is also movably installed inside the main body. The sealing element can restrict the airflow direction of the first air duct when the dust collection station is assembled on the dust cup. The sealing element is elastically hinged in the main body. When one of the plugs is in contact with its corresponding air inlet or air outlet, the other plug is tilted towards its corresponding air inlet or air outlet. Utility Model Content

[0005] In view of the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a cleaning device.

[0006] The technical solution adopted in this embodiment of the utility model is a cleaning device, including a main unit and a base station. The main unit can be placed on the base station. The main unit includes a vacuum fan, a cavity, and a dust collection duct. The cavity is located below the vacuum fan, and the suction end of the vacuum fan is connected to the cavity. A dust cup is installed below the cavity, and a vacuum pipe is connected to the dust cup. The cavity has a vacuum opening that communicates with the dust cup. A sliding cover is provided inside the cavity. The vacuum opening is arranged opposite to the suction end of the vacuum fan so that the air between the suction end of the vacuum fan and the vacuum opening can flow in a straight line.

[0007] It also includes an air duct switching mechanism, which pushes the sliding cover to move to control the opening and closing of the suction opening;

[0008] One end of the dust collection duct connects to the cavity chamber, and the other end of the dust collection duct is equipped with a normally closed cover that cooperates with the base station. The dust cup is equipped with a normally closed door that cooperates with the base station. A dust collection pipe is installed on the base station. When the main unit is placed on the base station, the normally closed cover opens. The two ends of the dust collection pipe are respectively connected to the end of the dust collection duct furthest from the cavity chamber and the normally closed door. The normally closed door opens when the air pressure inside the dust collection pipe is lower than the air pressure inside the dust cup. The opening and closing of the suction opening is controlled by a duct switching mechanism, allowing users to switch ducts between the base station and the cleaning equipment without manual intervention, which is convenient, quick, and improves the user experience.

[0009] Furthermore, the main unit includes a fan bracket and an air duct cover. The fan bracket and air duct cover are arranged opposite each other to form a cavity. The vacuum cleaner is mounted on the fan bracket, which has a first opening and a second opening. The first opening connects to the suction end of the vacuum cleaner, and the second opening connects to the dust collection duct. The suction opening is located on the air duct cover, and the air duct switching mechanism is mounted on the air duct cover. The cavity and the air duct switching mechanism work together to control the airflow direction. When the main unit is used alone, the air duct switching mechanism controls the opening of the suction opening, allowing the vacuum cleaner to directly suction the dust cup through the cavity. In this case, the airflow is in a straight line, effectively avoiding the impact of obstructions or curved air ducts on the vacuum cleaner's air performance, and greatly improving the air performance during vacuuming.

[0010] Furthermore, a dust collection pipe is fixedly connected to the top of the fan bracket. The dust collection pipe is arranged parallel to the fan bracket, with one end of the dust collection pipe connecting to a second opening to form a dust collection duct. The normally closed cover is installed at the other end of the dust collection pipe. The dust collection pipe connecting to the second opening forms a dust collection duct to facilitate base station operation. When the main unit is operating alone, the normally closed cover is closed, preventing airflow from passing through the dust collection pipe, thus meeting the dust extraction needs of the main unit operating independently.

[0011] Furthermore, the air duct switching mechanism includes a first drive rod and an actuator. The first drive rod passes through the second opening, one end of the first drive rod is connected to the actuator, and the other end of the first drive rod extends to the port of the dust collection pipe away from the first opening to cooperate with the base station. The normally closed cover is provided with a recess to accommodate the protruding part of the first drive rod. When the dust collection pipe on the base station is connected to the dust collection air duct, the base station abuts against the end of the first drive rod and pushes the first drive rod into the dust collection pipe.

[0012] The actuator includes a transmission mechanism and two parallel limiting walls, which are respectively fixed to both sides of the dust suction opening on the duct cover. A sliding cover is positioned between the two limiting walls. A second drive rod is positioned above the sliding cover, connected to a first drive rod, and drives the sliding cover to move between the two limiting walls via the transmission mechanism. When the main unit is placed on the base station, the duct switching mechanism controls the dust suction opening to close, and pushes the sliding cover through the first and second drive rods to block the dust suction opening. When the main unit is detached from the base station, the duct switching mechanism controls the dust suction opening to open, ensuring that the airflow between the suction end of the dust collector, the dust suction opening, and the dust cup is in a straight line; the sliding cover is driven to move outside the straight line of airflow.

[0013] Furthermore, a spring is provided at one end of the second drive rod, and the two ends of the spring are respectively fixedly connected to the second drive rod and the limiting wall. The spring is used to reset the second drive rod. When the host is detached from the base station, the spring resets the second drive rod, drives the first drive rod, and simultaneously drives the sliding cover to reset, so that the airflow of the suction opening and the first opening is in a straight line, and the suction fan can directly suction the dust cup through the suction opening and the first opening.

[0014] Furthermore, the limiting wall is arranged parallel to the length direction of the dust collection pipe. The transmission mechanism includes a rack and a coaxial gear. The rack is mounted parallel to the limiting wall on the side of the sliding cover near the limiting wall. The coaxial gear is located on the side of the limiting wall away from the sliding cover and is rotatably mounted on the duct cover. The second drive rod is provided with teeth for coaxial gear meshing, and the coaxial gear meshes with the rack. This is a transmission mechanism constructed using gear meshing.

[0015] Furthermore, the limiting wall is arranged perpendicular to the length direction of the dust collection pipe. The sliding cover includes two opposing sliding plates. The second drive rod has two protrusions, each located above one of the sliding plates. The transmission mechanism includes a slider and a groove. The slider is fixedly connected to the bottom of the protrusion, and the groove is installed on the top of the sliding plate and cooperates with the slider. When the second drive rod moves along the length direction of the dust collection pipe, the two sliding plates move closer or further apart under the action of the slider and the groove. This transmission mechanism utilizes a slider and groove configuration.

[0016] Furthermore, a soft rubber strip is fixedly connected to the edge of the dust suction opening on the air duct cover. The soft rubber strip has a raised arc-shaped cross-section. The soft rubber strip is used to cooperate with the sliding cover to improve the blocking effect when the sliding cover blocks the dust suction opening.

[0017] Furthermore, the dust collection duct includes a cup-dragging chamber, a dust storage chamber, and a return air duct. The dust storage chamber is located below the cup-dragging chamber, and the bottom of the cup-dragging chamber is connected to the dust storage chamber. One end of the return air duct is connected to the dust storage chamber, and the other end of the return air duct is connected to the dust collection duct when the main unit is placed on the base station. The base station top cover is provided with a return air duct inlet, and the side of the return air duct inlet of the base station top cover is provided with a top cover sloped at a certain angle so that when the main unit is placed on the base station, the normally closed cover is opened, and at the same time, it abuts against the end of the first drive rod and pushes the first drive rod into the dust collection duct. When the main unit is placed on the base station, the dust cup is placed in the cup-dragging chamber. The dust storage chamber is a waste collection device during dust collection operations.

[0018] Furthermore, the first opening and the suction opening are coaxially arranged, improving the smoothness of airflow between them.

[0019] Compared with the prior art, the cleaning device proposed in this utility model controls the opening and closing of the suction opening through the air duct switching mechanism, so that users can switch the air duct when interacting with the base station without lifting a finger, which is convenient, quick and improves the user experience.

[0020] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit the present invention.

[0021] The overview of various implementations or examples of the technology described in this utility model is not a complete disclosure of the full scope or all features of the disclosed technology. Attached Figure Description

[0022] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and, together with the description and claims, serve to explain embodiments of the utility model. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0023] Figure 1 This is a schematic diagram of the host structure according to an embodiment of the present utility model.

[0024] Figure 2 This is a schematic diagram of the airflow during dust collection operations according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the appearance of a base station according to an embodiment of the present utility model.

[0026] Figure 4 This is a schematic diagram of the base station structure according to an embodiment of the present utility model.

[0027] Figure 5 This is an exploded structural diagram of Embodiment 1 of the present invention.

[0028] Figure 6 This is a schematic diagram of the transmission mechanism of Embodiment 1 of this utility model.

[0029] Figure 7 This is an exploded structural diagram of Embodiment 2 of the present invention.

[0030] Figure 8 This is a schematic diagram of the transmission mechanism in Embodiment 2 of this utility model.

[0031] Figure 9 This is a schematic diagram of the second drive rod structure in Embodiment 2 of this utility model. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0035] See Figures 1 to 9This utility model provides a cleaning device, including a main unit and a base station. The main unit can be placed on the base station. The main unit includes a vacuum fan 1, a cavity, and a dust collection duct. The cavity is located below the vacuum fan 1, and the suction end of the vacuum fan 1 is connected to the cavity. A dust cup 2 is installed below the cavity, and a suction pipe 3 is connected to the dust cup 2. The cavity has a suction opening 4 that communicates with the dust cup 2. A sliding cover 12 is provided inside the cavity. The suction opening 4 is arranged opposite to the suction end of the vacuum fan 1 so that the air between the suction end of the vacuum fan 1 and the suction opening 4 can flow in a straight line.

[0036] It also includes an air duct switching mechanism, which pushes the sliding cover 12 to move to control the opening and closing of the dust suction opening 4; when the air duct switching mechanism controls the dust suction opening 4 to open, the airflow between the suction end of the dust suction fan, the dust suction opening 4 and the dust cup 2 is in a straight line.

[0037] One end of the dust collection duct connects to the cavity chamber, and the other end of the dust collection duct is equipped with a normally closed cover 5 that cooperates with the base station. The dust cup 2 is equipped with a normally closed door 6 that cooperates with the base station. A dust collection pipe is installed on the base station. When the main unit is placed on the base station, the normally closed cover 5 is opened. The two ends of the dust collection pipe are respectively connected to the end of the dust collection duct furthest from the cavity chamber and the normally closed door 6. The normally closed door 6 opens when the air pressure inside the dust collection pipe is lower than the air pressure inside the dust cup 2. This technical solution controls the opening and closing of the suction opening through a duct switching mechanism, allowing users to switch ducts when interacting with the cleaning equipment without manual intervention, which is convenient, quick, and improves the user experience. When the main unit is separated from the base station and is working, the dust is sucked into the dust cup 2 through the suction pipe 3 by the suction fan 1.

[0038] The main unit includes a fan bracket 7 and an air duct cover 8. The fan bracket 7 and the air duct cover 8 are arranged opposite each other to form a closed cavity. The vacuum cleaner 1 is mounted on the fan bracket 7, and the fan bracket 7 has a first opening 71 and a second opening 72. The first opening 71 is connected to the suction end of the vacuum cleaner 1, and the second opening 72 is connected to the dust collection air duct. The suction opening 4 is opened on the air duct cover 8, and the air duct switching mechanism is installed on the air duct cover 8. The cavity and the air duct switching mechanism work together to control the airflow direction. When the main unit is used alone, the air duct switching mechanism controls the opening of the suction opening 4, allowing the vacuum cleaner 1 to directly suction the dust cup 2 through the cavity. At this time, the airflow is in a straight line, effectively avoiding the influence of obstructions or curved air ducts on the air performance of the vacuum cleaner 1, and greatly improving the air performance during vacuuming.

[0039] The top of the fan bracket 7 is fixedly connected to a dust collection pipe 9, which is parallel to the fan bracket 7. One end of the dust collection pipe 9 connects to a second opening 72 to form a dust collection duct, and the normally closed cover 5 is installed at the other end of the dust collection pipe 9. The dust collection pipe 9 connects to the second opening 72 to form a dust collection duct to facilitate base station operation. When the main unit is operating alone, the normally closed cover 5 is closed, and airflow does not pass through the dust collection pipe 9, thus meeting the dust collection needs of the main unit operating alone.

[0040] The air duct switching mechanism includes a first drive rod 10 and an actuator. The first drive rod 10 passes through the second opening 72. One end of the first drive rod 10 is connected to the actuator, and the other end of the first drive rod 10 extends to the port of the dust collection pipe 9 away from the first opening 71 to cooperate with the base station. The normally closed cover 5 is provided with a recess 51 to accommodate the protruding part of the first drive rod 10. When the dust collection pipe on the base station is connected to the dust collection air duct, the base station abuts against the end of the first drive rod 10 and pushes the first drive rod 10 into the dust collection pipe 9.

[0041] The actuator includes a transmission mechanism and two parallel limiting walls 11, which are respectively fixed on both sides of the dust suction opening 4 on the air duct cover 8. A sliding cover 12 is positioned between the two limiting walls 11. A second drive rod 13 is positioned above the sliding cover 12, connected to a first drive rod 10. The second drive rod 13 drives the sliding cover 12 to move between the two limiting walls 11 via the transmission mechanism. When the host is placed on the base station, the first drive rod 10 and the second drive rod 13 push the sliding cover 12, causing it to block the dust suction opening 4. At this time, the normally closed cover 5 opens, and airflow passes through the dust collection pipe 9, allowing the host and base station to work together. When the host is placed on the base station, the air duct switching mechanism controls the dust suction opening 4 to close, and the first drive rod 10 and the second drive rod 13 push the sliding cover 12, causing it to block the dust suction opening 4. When the main unit is placed away from the base station, the air duct switching mechanism controls the opening of the suction opening 4, ensuring that the airflow between the suction end of the vacuum fan, the suction opening 4, and the dust cup 2 is in a straight line; the sliding cover 12 is driven to move outside the straight airflow range. This effectively avoids the impact of obstructions or curved air ducts on the air performance of the vacuum fan 1, greatly improving the air performance of this device.

[0042] A spring 14 is provided at one end of the second drive rod 13. The two ends of the spring 14 are fixedly connected to the second drive rod 13 and the limiting wall 11, respectively. The spring 14 is used to reset the second drive rod 13. When the host is detached from the base station, the spring 14 resets the second drive rod 13, drives the first drive rod 10, and simultaneously drives the sliding cover 12 to reset, so that the airflow of the suction opening 4 and the first opening 71 is in a straight line, and the vacuum fan 1 can directly suction the dust cup 2 through the suction opening 4 and the first opening 71.

[0043] A soft rubber strip is fixedly connected to the edge of the dust suction opening 4 on the air duct cover 8. The soft rubber strip has a raised arc-shaped cross-section. The soft rubber strip is used to cooperate with the sliding cover 12 to improve the blocking effect when the sliding cover 12 blocks the dust suction opening 4.

[0044] The dust collection duct includes a cup-dragging chamber 17, a dust storage chamber 18, and a return air duct 19. The dust storage chamber 18 is located below the cup-dragging chamber 17, and the bottom of the cup-dragging chamber 17 is connected to the dust storage chamber 18. One end of the return air duct 19 is connected to the dust storage chamber 18, and the other end of the return air duct 19 is connected to the dust collection duct when the main unit is placed on the base station. The base station top cover is provided with a return air duct 19 opening. The side of the return air duct 19 opening of the base station top cover is provided with a top cover sloped at a certain angle so that when the main unit is placed on the base station, the normally closed cover 5 is opened, and at the same time, it abuts against the end of the first drive rod 10 and pushes the first drive rod 10 into the dust collection duct 9. When the main unit is placed on the base station, the dust cup is placed in the cup-dragging chamber 17. The dust storage chamber 18 is a waste collection device during dust collection operations.

[0045] The first opening 71 and the suction opening 4 are coaxially arranged. This improves the smoothness of airflow between the first opening 71 and the suction opening 4.

[0046] The transmission mechanism and the sliding cover 12 in the actuator have different construction methods, as detailed below:

[0047] Example 1

[0048] See Figure 5 and 6 The limiting wall 11 is arranged parallel to the length direction of the dust collection pipe 9. The transmission mechanism includes a rack 15 and a coaxial gear 16. The rack 15 is installed parallel to the limiting wall 11 on the side of the sliding cover 12 near the limiting wall 11. The coaxial gear 16 is located on the side of the limiting wall 11 away from the sliding cover 12. The coaxial gear 16 is rotatably mounted on the air duct cover 8. The second drive rod 13 is provided with teeth that mesh with the coaxial gear 16. The coaxial gear 16 meshes with the rack 15. The transmission mechanism is constructed by using gear meshing. The coaxial gear 16 meshes with the teeth on the second drive rod 13 and the rack 15. When the host is placed on the base station, the base station abuts against the end of the first drive rod 10 and pushes the first drive rod 10 into the dust collection pipe 9. The first drive rod 10 drives the coaxial gear 16 to rotate through the second drive rod 13, thereby moving the sliding cover 12 onto the dust suction opening 4. Conversely, when the host is disconnected from the base station, the spring 14 resets the second drive rod 13, and at the same time drives the sliding cover 12 to reset, so that the sliding cover 12 no longer blocks the dust suction opening 4.

[0049] Example 2

[0050] See Figures 7 to 9The limiting wall 11 is arranged perpendicular to the length direction of the dust collection pipe 9. The sliding cover 12 includes two opposing sliding plates 121. The second drive rod 13 has two protrusions, each located above a sliding plate 121. The transmission mechanism includes a slider 131 and a groove 122. The slider 131 is fixedly connected to the bottom of the protrusion, and the groove 122 is installed on the top of the sliding plate 121 and cooperates with the slider 131. When the second drive rod 13 moves along the length direction of the dust collection pipe 9, the two sliding plates 121 move closer or further apart under the action of the slider 131 and the groove 122. The transmission mechanism is constructed using a slider and groove. When the host is placed on the base station, the base station abuts against the end of the first drive rod 10 and pushes the first drive rod 10 into the dust collection pipe 9. The first drive rod 10 causes the slider 131 to move within the groove 122 through the second drive rod 13. The sliding plates 121 move closer together under the action of the slider 131 and the groove 122 to block the dust suction opening 4. Conversely, when the host is detached from the base station, the sliding plate 121 moves away from each other under the action of the slider 131 and the slide groove 122, and no longer blocks the dust suction opening 4.

[0051] See Figure 2 When the host is placed on the base station, the dust cup is placed in the cup-carrying chamber 17. At this time, the air duct switching mechanism controls the closure of the suction opening 4, that is, the suction opening 4 is blocked by the sliding cover 12, and dust collection can then be carried out. During dust collection, the airflow flows sequentially through the suction pipe 3, dust cup 2, cup-carrying chamber 17, dust storage chamber 18, and return air pipe 19. During dust collection, under the action of the suction fan 1, the air pressure in the cup-carrying chamber 17 is lower than the air pressure in the dust cup 2, and the normally closed door 6 opens. The airflow flows through the dust storage chamber 18 for filtration, transferring the dust in the dust cup 2 to the dust storage chamber 18.

[0052] The above description is intended to be illustrative and not restrictive. Those skilled in the art can make variations, modifications, substitutions, and alterations to the above embodiments within the scope of this disclosure. Moreover, the above examples (or one or more of them) can be used in combination with each other, and these embodiments can be combined with each other in various combinations or arrangements.

Claims

1. A cleaning device, comprising a main unit and a base station, wherein the main unit can be placed on the base station, characterized in that, The main unit includes a vacuum fan (1), a cavity and a dust collection duct. The cavity is located below the vacuum fan (1) and the suction end of the vacuum fan (1) is connected to the cavity. A dust cup (2) is installed below the cavity. A dust collection duct (3) is connected to the dust cup (2). The cavity has a suction opening (4) that is connected to the dust cup (2). A sliding cover (12) is installed inside the cavity. The suction opening (4) is opposite to the suction end of the vacuum fan (1) so that the air between the suction end of the vacuum fan (1) and the suction opening (4) can flow in a straight line. It also includes an air duct switching mechanism, which pushes the sliding cover (12) to move to control the opening and closing of the suction opening (4); One end of the dust collection duct is connected to the cavity, and the other end of the dust collection duct is equipped with a normally closed cover (5) that cooperates with the base station. The dust cup (2) is equipped with a normally closed door (6) that cooperates with the base station. The base station is equipped with a dust collection pipe. When the host is placed on the base station, the normally closed cover (5) is opened. The two ends of the dust collection pipe are respectively connected to the end of the dust collection duct away from the cavity and the normally closed door (6). The normally closed door (6) is opened when the air pressure in the dust collection pipe is lower than the air pressure in the dust cup (2).

2. The cleaning equipment according to claim 1, characterized in that, The main unit includes a fan bracket (7) and an air duct cover (8). The fan bracket (7) and the air duct cover (8) are arranged opposite to each other to form a closed cavity. The dust collection fan (1) is installed on the fan bracket (7). The fan bracket (7) has a first opening (71) and a second opening (72). The first opening (71) is connected to the suction end of the dust collection fan (1). The second opening (72) is connected to the dust collection air duct. The dust collection opening (4) is opened on the air duct cover (8). The air duct switching mechanism is installed on the air duct cover (8).

3. The cleaning equipment according to claim 2, characterized in that, The top of the fan bracket (7) is fixedly connected to the dust collection pipe (9), which is arranged parallel to the fan bracket (7). One end of the dust collection pipe (9) is connected to the second opening (72) to form a dust collection air duct, and the normally closed cover (5) is installed at the other end of the dust collection pipe (9).

4. A cleaning device according to claim 3, characterized in that, The air duct switching mechanism includes a first drive rod (10) and an actuator. The first drive rod (10) passes through the second opening (72). One end of the first drive rod (10) is connected to the actuator, and the other end of the first drive rod (10) extends to the port of the dust collection pipe (9) away from the first opening (71) to cooperate with the base station. The normally closed cover (5) is provided with a recess (51) to accommodate the protruding part of the first drive rod (10). When the dust collection pipe on the base station is connected to the dust collection air duct, the base station abuts against the end of the first drive rod (10) and pushes the first drive rod (10) into the dust collection pipe (9). The actuator includes a transmission mechanism and two parallel limiting walls (11). The two limiting walls (11) are respectively fixed on both sides of the dust suction opening (4) on the air duct cover (8). The sliding cover (12) is disposed between the two limiting walls (11). A second driving rod (13) is disposed above the sliding cover (12). The second driving rod (13) is connected to the first driving rod (10), and the second driving rod (13) drives the sliding cover (12) to move between the two limiting walls (11) through the transmission mechanism.

5. A cleaning device according to claim 4, characterized in that, A spring (14) is provided at one end of the second drive rod (13). The two ends of the spring (14) are fixedly connected to the second drive rod (13) and the limiting wall (11) respectively. The spring (14) is used to reset the second drive rod (13).

6. A cleaning device according to claim 4, characterized in that, The limiting wall (11) is arranged parallel to the length direction of the dust collection pipe (9). The transmission mechanism includes a rack (15) and a coaxial gear (16). The rack (15) is installed parallel to the limiting wall (11) on the side of the sliding cover (12) near the limiting wall (11). The coaxial gear (16) is arranged on the side of the limiting wall (11) away from the sliding cover (12). The coaxial gear (16) is rotatably mounted on the air duct cover (8). The second drive rod (13) is provided with teeth that mesh with the coaxial gear (16). The coaxial gear (16) meshes with the rack (15).

7. A cleaning device according to claim 4, characterized in that, The limiting wall (11) is set perpendicular to the length direction of the dust collection pipe (9). The sliding cover (12) includes two opposing sliding plates (121). The second drive rod (13) has two protrusions. The two protrusions are located above one of the sliding plates (121). The transmission mechanism includes a slider (131) and a groove (122). The slider (131) is fixedly connected to the bottom of the protrusion. The groove (122) is installed on the top of the sliding plate (121) and cooperates with the slider (131). When the second drive rod (13) moves along the length direction of the dust collection pipe (9), the two sliding plates (121) move closer or further away from each other under the action of the slider (131) and the groove (122).

8. A cleaning device according to claim 2, characterized in that, A soft rubber strip is fixedly connected to the edge of the dust suction opening (4) on the air duct cover (8), and the cross section of the soft rubber strip is a protruding arc shape.

9. A cleaning device according to claim 1, characterized in that, The dust collection duct includes a cup-dragging chamber (17), a dust storage chamber (18), and a return air duct (19). The dust storage chamber (18) is located below the cup-dragging chamber (17), and the bottom of the cup-dragging chamber (17) is connected to the dust storage chamber (18). One end of the return air duct (19) is connected to the dust storage chamber (18), and the other end of the return air duct (19) is connected to the dust collection duct when the host is placed on the base station.

10. A cleaning device according to any one of claims 2 to 8, characterized in that, The first opening (71) and the suction opening (4) are coaxially arranged.

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