Air duct butt joint structure and cleaning device

Abstract

The utility model provides an air duct butt joint structure and a cleaning device, the air duct butt joint structure comprises a containing box, the containing box is provided with an inclined plane, and the inclined plane is provided with an air outlet; the air duct shell is obliquely provided with an air inlet, the air inlet and the air outlet are oppositely arranged, the air inlet is obliquely arranged, and the inclined surface of the containing box is configured to move in the oblique arrangement direction of the air inlet; the sealing piece is embedded in the edge of the air inlet and abuts against the inclined face of the containing box. The inclined air outlet is formed in the inclined face of the containing box, the air duct shell is provided with the inclined air inlet correspondingly matched with the air outlet, so that the containing box and the air duct shell are installed in an inclined mode in the butt joint process, and extrusion, shearing and friction on a sealing piece embedded in the edge of the air inlet in the assembling process are reduced; the sealing failure caused by easy degumming and warping or surface damage of the sealing element due to direct scraping of the sealing element is avoided, the degumming and damage degree of the sealing element is reduced, and the durability and the sealing effect of the sealing element are improved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning equipment, and mainly relates to an air duct docking structure and cleaning equipment. Background Art

[0002] At present, the dust boxes of cleaning robots on the market can be taken out and installed independently from the robot. There are two main installation methods, one is the rear pull-out type, and the other is the lift-up type, that is, the dust box is taken out from the top of the robot. The structure of the lift-up dust box is easy to install and remove, and the user has a good experience of disassembly and assembly. It is very common in cleaning robots. However, the air outlet of this lift-up dust box is usually set on the side of the dust box, and the air inlet of the single-fan dual-channel assembly docked with it is also set on the side to dock with the dust box. It is usually sealed at the air outlet of the dust box or the air inlet of the air inlet duct. Since the seal and the dust box seal require interference fit, when the dust box is installed from top to bottom, it is easy to scratch the seal, causing the seal to easily debond and warp or surface damage, resulting in sealing failure. In addition, foreign objects are easily introduced at the air inlet of the air inlet duct, causing the fan to fail. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an air duct docking structure and a cleaning device, which can reduce the extrusion, shearing and friction of the seal nested at the edge of the air inlet during the assembly process by means of an inclined installation during the docking process of the containing box and the air duct shell, thereby improving the durability and sealing effect of the seal.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The technical solution of one aspect of the present application proposes a duct docking structure, including a containing box, the containing box being provided with an inclined surface, the inclined surface of the containing box being provided with an air outlet; an air duct shell, the air duct shell being provided with an air inlet, the air inlet being arranged opposite to the air outlet, the air inlet being arranged inclined, and the inclined surface of the containing box being configured to be able to move along the inclined setting direction of the air inlet; and a sealing member, the sealing member being nested at the edge of the air inlet and abutting against the inclined surface of the containing box.

[0006] According to some technical solutions of the present application, an angle is formed between the inclined surface of the containing box and the vertical direction, and the angle ranges from 5° to 15°.

[0007] According to some technical solutions of the present application, an angle is formed between the plane where the air inlet is located and the vertical direction, and the angle ranges from 5° to 15°.

[0008] According to some technical solutions of the present application, the seal is provided with an inclined surface, the inclined surface of the seal is located around the air inlet, and an angle is formed between the inclined surface of the seal and the vertical direction, and the angle ranges from 5° to 15°.

[0009] According to some technical solutions of the present application, a sealing rib is provided at one end of the sealing member facing the inclined surface of the containing box, and the sealing rib abuts against the inclined surface of the containing box to seal the gap between the air inlet and the air outlet.

[0010] According to some technical solutions of the present application, the sealing component and the air duct shell are integrally formed.

[0011] According to some technical solutions of the present application, a door baffle is further included, which is tiltedly arranged on the air duct shell and is configured to be able to move relative to the air inlet to control the conduction and cutoff between the air inlet and the air outlet.

[0012] According to some technical solutions of the present application, the sealing member is axially provided with a first end and a second end connected to each other, the first end abuts against the inclined surface of the accommodating box, and when the door stopper is located in a position to block the air inlet, the second end abuts against the door stopper to seal the gap between the door stopper and the air inlet.

[0013] According to some technical solutions of the present application, a first buckling portion is provided on the air duct shell component, and a second buckling portion is provided on the door stop component. When the door stop component reaches a position for blocking the air inlet, the first buckling portion and the second buckling portion are buckled with each other to lock the door stop component and the air duct shell component together.

[0014] According to some technical solutions of the present application, the door baffle includes a baffle, a fixed seat and a lifting member, the fixed seat is arranged on the air duct shell, the lifting member is connected between the fixed seat and the baffle, and the lifting member can drive the baffle to move relative to the fixed seat so that the baffle opens or blocks the air inlet.

[0015] The second object of the present application is to provide a cleaning device, characterized in that it includes the air duct docking structure described in any of the above embodiments.

[0016] Beneficial effects:

[0017] The air duct docking structure of the present application seals the connection between the air inlet and the air outlet by placing the seal against the inclined surface of the container box, thereby maintaining a good suction effect of the air duct shell on the container box, and preventing impurities from entering the air duct shell from the connection between the air inlet and the air outlet and causing work failure. By providing an inclined air outlet on the inclined surface of the container box, and the air duct shell providing an air inlet that is inclined to match the air outlet, the container box and the air duct shell are installed in an inclined manner during docking, which reduces the squeezing, shearing and friction of the seal nested at the edge of the air inlet during assembly, avoids direct scratching of the seal, which may cause the seal to be easily debonded and warped, or surface damage, resulting in sealing failure, reduces the degree of debonding and damage of the seal, and improves the durability and sealing effect of the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view of an air duct docking structure according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 A local enlarged view of point A;

[0020] Figure 3 A schematic diagram of a receiving box according to an embodiment of the present application;

[0021] Figure 4 This is an enlarged view of the air outlet structure of the container box according to one embodiment of the present application;

[0022] Figure 5 A three-dimensional diagram of an air duct housing according to an embodiment of the present application;

[0023] Figure 6 An exploded view of an air duct shell according to an embodiment of the present application;

[0024] Figure 7 This is a front view of an air duct shell according to an embodiment of the present application;

[0025] Figure 8 for Figure 7 AA section view of state 1;

[0026] Fig. 9 for Figure 7 AA section view of state 2;

[0027] Fig.10 for Figure 7 BB profile state one;

[0028] Fig.11 for Figure 7 BB cross-section diagram of state II.

[0029] The corresponding relationship between the reference numerals and the component names is as follows:

[0030] 1 containing box, 101 inclined surface, 102 air outlet;

[0031] 2 air duct shell, 201 air inlet;

[0032] 3 sealing member, 31 first end portion, 32 second end portion;

[0033] 4 Sealing ribs;

[0034] 5 door stopper, 51 baffle, 52 fixing seat, 53 lifting member;

[0035] 61 is a first buckling portion, 62 is a second buckling portion. DETAILED DESCRIPTION

[0036] The utility model provides an air duct docking structure and a cleaning device. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Please refer to the attached Figures 1 to 11 The present application provides an air duct docking structure, including a containing box 1, an air duct shell 2 and a sealing member 3.

[0040] A fan and a multi-channel component are arranged in the air duct shell 2. Through the arrangement of the fan and the multi-channel component, the fan can be used to drive airflow to form in the multi-channel component.

[0041] Optionally, the air duct shell 2 is provided with an air inlet 201, and the number of the air inlet 201 can be adapted according to the number of multi-channel components of the air duct shell 2. For example, Figure 7 As shown, the multi-channel component is a double air channel, and two air inlets 201 are correspondingly provided.

[0042] The containing box 1 can move relative to the air duct shell 2. For example, when the air duct docking structure is used in a cleaning device, the containing box 1 can be set as a dust box, a sewage box or other, and the air duct shell 2 is installed on the cleaning device. The containing box 1 is detachably installed on the cleaning device, and the containing box 1 can be cleaned or replaced by extracting the containing box 1.

[0043] Please refer to the attached Figure 2 , Figure 4 and 8 The container box 1 is provided with an inclined surface 101, and an air outlet 102 is provided on the inclined surface 101 of the container box 1. The air duct shell 2 is provided with an air inlet 201, and the air inlet 201 is arranged opposite to the air outlet 102. The air inlet 201 is arranged obliquely. The inclined surface 101 of the container box 1 is configured to move along the oblique setting direction of the air inlet 201. The sealing member 3 is nested at the edge of the air inlet 201 and abuts against the inclined surface 101 of the container box 1. The air inlet 201 and the air outlet 102 of the container box 1 are arranged opposite to each other so that the air inlet 201 and the air outlet 102 are connected. When the fan is working, the inside of the container box 1 can be in a negative pressure state, and the airflow is transported to the inside of the air duct shell 2 through the air outlet 102.

[0044] In order to further improve the connection sealing between the storage box 1 and the air duct shell 2, an air outlet 102 is provided on the inclined surface 101 of the storage box 1, so that the air outlet 102 is also inclined. Correspondingly, the air duct shell 2 is provided with an air inlet 201 inclined corresponding to the inclined surface 101 of the storage box 1. The storage box 1 is installed on the cleaning device. More specifically, during the installation of the storage box 1 from top to bottom on the cleaning device and docking with the air duct shell 2, the inclined surface 101 of the storage box 1 and the inlet of the air duct shell 2 are connected. The air outlet 201 cooperates with the container box 1, and the container box 1 moves along the inclined direction until the air inlet 201 and the air outlet 102 are arranged opposite to each other. The sealing member 3 can abut against the inclined surface 101 of the container box 1, so that the sealing member 3 can seal the joint between the container box 1 and the air duct shell 2, thereby improving the suction effect of the air duct shell 2 on the container box 1; and the setting of the sealing member 3 makes the container box 1 and the air duct shell 2 fit tightly, thereby preventing foreign matter from entering through the air inlet 201 of the air duct shell 2 and causing the fan in the air duct shell 2 to fail.

[0045] More importantly, compared to the existing dust box extraction and installation methods, the present application adopts a container box 1 with an inclined air outlet 102 and an air duct shell 2 with a matching inclined air inlet 201. During the docking process, the force of the container box 1 on the seal 3 nested in the air inlet 201 of the air duct shell 2 is greatly reduced, thereby reducing the shear force of the container box 1 on the seal 3, avoiding direct scratching of the seal 3, which may cause the seal 3 to easily debond and warp or surface damage leading to sealing failure, thereby reducing the debonding and damage of the seal 3 and improving the durability and sealing effect of the seal 3.

[0046] In order to achieve a better effect of the tilted setting, the angle between the tilted surface 101 of the container 1 and the vertical direction is 5° to 15°. Figure 4 , the figure α indicates the angle formed between the inclined surface 101 of the container box 1 and the vertical direction, and the direction perpendicular to the horizontal plane is the vertical direction. When the container box 1 is arranged in a top-to-bottom manner on the cleaning device, the container box 1 needs to be extracted from the bottom to the top or installed from the top to the bottom. The vertical direction can also be understood as the direction of extraction from the bottom to the top and installation from the top to the bottom. By adjusting the angle between the inclined surface 101 of the container box 1 and the vertical direction, the inclination angle of the air inlet 201 on the inclined surface 101 of the container box 1 can be flexibly adjusted within the range of 5° to 15°. Within the range of the inclination angle, during the installation of the container box 1 and the air duct shell 2, the friction shear force of the container box 1 on the seal 3 is small, which reduces the wear and tear of the seal 3, thereby increasing the life of the seal 3.

[0047] Preferably, when the angle between the inclined surface 101 of the containing box 1 and the vertical direction is 10°, it has a better effect of preventing the seal 3 from being worn, and has less influence on the air duct design of the air duct shell 2.

[0048] Furthermore, an angle is formed between the plane where the air inlet 201 is located and the vertical direction, and the angle ranges from 5° to 15°;

[0049] Furthermore, the seal 3 is provided with an inclined surface, and the inclined surface of the seal 3 is located around the air inlet 201. An angle is formed between the inclined surface of the seal 3 and the vertical direction, and the angle ranges from 5° to 15°.

[0050] In consideration of the friction and shear force on the seal 3 during the docking process between the container box 1 and the air duct shell 2, as well as the layout of the air duct shell 2, the air inlet 201 opened on the air duct shell 2 and the inclined surface 101 of the seal 3 are set to have the same inclination angle relative to the vertical direction, and the range of the inclination angle is between 5° and 15°. This is because a larger inclination angle requires a larger height space to achieve the same air flow area in the air duct shell 2, thereby occupying a larger space, while a smaller inclination angle causes the shear force and stroke of the interference position between the container box 1 and the seal 3 to be greater when the container box 1 is docked with the air duct shell 2, which will cause the seal 3 to be damaged more quickly, seriously affecting its service life.

[0051] Furthermore, a sealing convex rib 4 is provided at one end of the sealing member 3 facing the inclined surface 101 of the receiving box 1, and the sealing convex rib 4 abuts against the inclined surface 101 of the receiving box 1 to seal the gap between the air inlet 201 and the air outlet 102. By providing the sealing convex rib 4 for abutting against the inclined surface 101 of the receiving box 1 on the sealing member 3, when the receiving box 1 is docked with the air inlet 201 of the air duct shell 2, the sealing convex rib 4 is interference-fitted with the sealing convex rib 4, and the sealing convex rib 4 is located between the sealing member 3 and the inclined surface 101 of the receiving box 1, so that the sealing member 3 and the receiving box 1 can be better closely matched, so that the sealing member 3 is more stably fixed at the air inlet 201, and the sealing member 3 is prevented from falling off or shifting.

[0052] Specifically, the sealing rib 4 is arranged on the surface of the sealing member 3 facing the inclined surface 101 of the containing box 1, and the surface of the sealing member 3 is inclined to match the inclined surface 101 of the containing box 1.

[0053] Optionally, the sealing rib 4 is a sealing ring, and the air inlet 201 is located inside the sealing ring, so that a good sealing connection is formed between the periphery of the air inlet 201 and the receiving box 1, thereby improving the suction effect of the air duct shell 2 on the receiving box 1. Of course, the sealing rib 4 is not limited to the ring shape of the sealing ring, and can surround the outer periphery of the air inlet 201.

[0054] Preferably, the wall thickness of the sealing rib 4 is 0.8 mm. In this way, the sealing rib 4 makes the sealing member 3 and the inclined surface 101 of the receiving box 1 fit in an interference fit. Under this design, it is possible to avoid the sealing rib 4 being too thick and affecting the docking installation process of the receiving box 1 between the air duct shell 2. For example, a sealing rib 4 that is too thick makes the assembly force of the interference fit between the receiving box 1 and the air duct shell 2 too large, thereby affecting the user's use experience. It is also possible to maintain a certain deformation performance of the sealing rib 4 to avoid debonding and deformation that leads to poor sealing.

[0055] Optionally, the number of the sealing ribs 4 is at least two.

[0056] Preferably, there are two sealing ribs 4, which can effectively prevent the sealing rib 4 from being deformed such as folding during the installation and docking of the receiving box 1 and the air duct shell 2, resulting in poor sealing effect. The two sealing ribs 4 act as double insurance.

[0057] Furthermore, the sealing member 3 is integrally formed with the air duct shell 2 , which is beneficial to further improve the strength of the sealing member 3 and improve its durability.

[0058] In more detail, the seal 3 is nested at the air inlet 201 of the air duct shell 2, and the shell of the air duct shell 2 can usually be made of composite materials such as plastic. Taking the shell of the air duct shell 2 made of plastic as an example, the seal 3 uses soft glue and has good sealing performance. A layer of soft material, such as rubber, silicone, etc., is wrapped at the air inlet 201 of the air duct shell 2, and is molded into one with the air duct shell 2. With such an integrated molding structure, the seal 3 is less likely to warp and the back glue to fall off due to high temperature, and has better wear resistance and is not easy to be damaged and cause sealing failure, and can better adapt to the shape and size changes of the shell surface.

[0059] Furthermore, it also includes a door stopper 5, which is tiltedly arranged on the air duct shell 2, and the door stopper 5 is configured to be able to move relative to the air inlet 201 to control the conduction and cutoff between the air inlet 201 and the air outlet 102. By placing the door stopper 5 on the air duct shell 2, specifically, the door stopper 5 can be arranged in the cavity of the air duct shell 2, and by controlling the door stopper 5 to move relative to the air inlet 201, the air inlet 201 can be blocked or opened. When the door stopper 5 moves to block the air inlet 201, the door stopper 5 moves to the position of the air inlet 201, thereby disconnecting the conduction between the air inlet 201 and the air outlet 102. When the door stopper 5 moves to the position of opening the air inlet 201, when the fan arranged in the air duct shell 2 is working, the airflow formed in the containing box 1 can enter the air duct shell 2 through the air outlet 102 and the air inlet 201 in sequence.

[0060] Optionally, the door blocking member 5 can reach a position of blocking the air inlet 201 or opening the air inlet 201 by performing a lifting movement relative to the air inlet 201 or a lateral displacement movement relative to the air inlet 201 .

[0061] In other embodiments, the door stopper 5 can rotate relative to the air inlet 201 .

[0062] Please refer to the attached Figure 8 and attached Fig. 9 As shown, by adding the door stopper 5, the conduction and cutoff between the air inlet 201 and the air outlet 102 can be flexibly controlled when the cleaning device performs the corresponding cleaning task, corresponding to the attached Figure 8When no cleaning task is performed, the air inlet 201 is closed by the door stopper 5, corresponding to the attached Fig. 9 The second state shown, in this way, the on-off state of the air duct can be adjusted as needed to meet the working requirements of different cleaning equipment.

[0063] Moreover, by tilting the door baffle 5, the tilt angle of the air inlet 201 can be better adapted, ensuring that the door baffle 5 is closely matched with the air inlet 201 in the closed state, thereby preventing air leakage.

[0064] Furthermore, the sealing member 3 is provided with a first end 31 and a second end 32 connected in the axial direction, the first end 31 abuts against the inclined surface 101 of the containing box 1, and when the door stopper 5 is located at a position to block the air inlet 201, the second end 32 abuts against the door stopper 5 to seal the gap between the door stopper 5 and the air inlet 201. By respectively providing the first end 31 abutting against the inclined surface 101 of the containing box 1 and the second end 32 abutting against the door stopper 5, a good sealing effect can be formed with both sides of the air inlet 201 through the sealing member 3.

[0065] To take a more specific example, a sealing rib 4 is provided on the first end 31 for abutting against the inclined surface 101 of the containing box 1, and a sealing rib 4 is also provided on the second end 32 for abutting against the door stop 5 to further improve the sealing effect.

[0066] Furthermore, the air duct housing 2 is provided with a first buckle portion 61, and the door stopper 5 is provided with a second buckle portion 62. When the door stopper 5 reaches the position of shielding the air inlet 201, the first buckle portion 61 and the second buckle portion 62 are buckled with each other, so that the door stopper 5 and the air duct housing 2 are locked together. Fig.10 and attached Fig.11 As shown, by providing a first buckle 61 and a second buckle 62 that match each other on the air duct shell 2 and the door block 5, when the door block 5 reaches the position of shielding the air inlet 201, the first buckle 61 and the second buckle 62 are buckled with each other to ensure that the door block 5 remains stable in the state of closing the air inlet 201. In this way, under the action of the fan, the door block 5 and the air duct shell 2 are locked together, and the door block 5 can better resist the wind pressure and avoid shaking or air leakage gaps driven by the wind pressure. When the door block 5 moves from the position of shielding the air inlet 201 to the position of opening the air inlet 201, the buckle state between the first buckle 61 and the second buckle 62 is opened.

[0067] Please refer to the attached Figure 6Optionally, the first snap-fitting portion 61 and the second snap-fitting portion 62 are configured as matching hook structures, the hook of the first snap-fitting portion 61 has a downward opening, and the hook of the second snap-fitting portion 62 has an upward opening, so that the snap-fitting and unlocking states are achieved during the lifting and lowering movement of the door stop 5.

[0068] Furthermore, the door baffle 5 includes a baffle 51, a fixed seat 52 and a lifting member 53. The fixed seat 52 is set on the air duct shell 2. The lifting member 53 is connected between the fixed seat 52 and the baffle 51. The lifting member 53 can drive the baffle 51 to move relative to the fixed seat 52 so that the baffle 51 opens or blocks the air inlet 201.

[0069] In detail, take the example of the door stopper 5 blocking or opening the air inlet 201 by lifting movement. The fixing seat 52 of the door stopper 5 is set on the air duct shell 2, and the lifting member 53 is connected between the fixing seat 52 and the baffle 51. In this process, the lifting member 53 guides the lifting movement of the door stopper 5, so that the baffle 51 can move relative to the air inlet 201 under the drive of the lifting member 53.

[0070] Optionally, a limiting groove is provided on the air duct shell 2, and at least a portion of the baffle 51 is embedded in the limiting groove. The baffle 51 and the limiting groove are clearance-matched, and can move relative to the limiting groove under the drive of the lifting member 53. This can avoid the movement of the baffle door from being offset. When the fan is started and wind pressure is formed in the cavity of the air duct shell 2, the wind pressure can be effectively and better resisted.

[0071] Optionally, the lifting member 53 is a guide rod, a guide groove is provided on the air duct shell 2, the guide rod is inserted into the guide groove, and the movement of the guide rod is guided by the setting of the guide groove.

[0072] Optionally, the guide rod adopts an iron shaft, which is embedded in the baffle 51, so as to ensure the matching accuracy and matching strength with the guide groove, and will not shake randomly when the baffle 51 is raised, thereby ensuring a better sealing effect.

[0073] An embodiment of the second aspect of the present application provides a cleaning device, which has all the above-mentioned beneficial effects by setting the air duct docking structure of any of the above-mentioned embodiments on the cleaning device, and will not be described in detail here.

[0074] For example, the cleaning device is an integrated cleaning robot for washing and sweeping, which has the functions of sweeping, dusting and mopping. Correspondingly, two air inlets 201 are arranged on the air duct shell 2, and the cleaning robot includes two containing boxes 1, one of which is a dust box, and correspondingly, the air outlet 102 of the dust box is arranged correspondingly to one of the air inlets 201 on the air duct shell 2; the other containing box 1 is a sewage box, and correspondingly, the air outlet 102 of the sewage box is arranged correspondingly to the other air inlet 201 on the air duct shell 2. By designing the inclined design between the air inlet 201 and the air outlet 102, a better sealing effect is achieved between the dust box and the air duct shell 2, and between the sewage box and the air duct shell 2, and when taking out and installing the dust box or the sewage box, the friction and shearing effect on the seal 3 during the installation and docking process can be reduced, thereby improving the service life of the seal 3 and the durability and reliability of the seal 3.

[0075] In more detail, by providing a baffle 51 at the corresponding air inlet 201, only one fan can be provided on the air duct shell 2, and by controlling one of the baffles 51 to close or open the corresponding air inlet 201, it is suitable for switching between the sweeping and dusting functions and the mopping and washing functions. In the specific manner of the above embodiment, the baffle 51 is adapted to the sealing member 3 at the air inlet 201 in an inclined manner, which further improves the sealing performance and the reliability of the mode switching.

[0076] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.

Claims

1. A duct docking structure, characterized in that: include: A containing box, wherein the containing box is provided with an inclined surface, and an air outlet is provided on the inclined surface of the containing box; An air duct shell, wherein the air duct shell is obliquely provided with an air inlet, the air inlet is arranged opposite to the air outlet, and the inclined surface of the receiving box is configured to be movable along the oblique setting direction of the air inlet; A sealing member is nested at the edge of the air inlet and abuts against the inclined surface of the containing box.

2. The air duct docking structure according to claim 1, characterized in that: An angle is formed between the inclined surface of the containing box and the vertical direction, and the range of the angle is 5° to 15°.

3. The air duct docking structure according to claim 1, characterized in that: The plane where the air inlet is located forms an angle with the vertical direction, and the angle ranges from 5° to 15°; and / or The sealing member is provided with an inclined surface, the inclined surface of the sealing member is located around the air inlet, and an angle is formed between the inclined surface of the sealing member and the vertical direction, and the range of the angle is 5° to 15°.

4. The air duct docking structure according to claim 1, characterized in that: A sealing convex rib is provided at one end of the sealing member facing the inclined surface of the containing box, and the sealing convex rib abuts against the inclined surface of the containing box to seal the gap between the air inlet and the air outlet.

5. The air duct docking structure according to claim 4, characterized in that: The sealing component is integrally formed with the air duct shell.

6. The air duct docking structure according to any one of claims 1 to 5, characterized in that: It also includes a door baffle, which is tiltedly arranged on the air duct shell and is configured to be able to move relative to the air inlet to control the conduction and cutoff between the air inlet and the air outlet.

7. The air duct docking structure according to claim 6, characterized in that: The sealing member is axially provided with a first end and a second end connected thereto, the first end abutting against the inclined surface of the accommodating box, and when the door stopper is located at a position covering the air inlet, the second end abutting against the door stopper to seal the gap between the door stopper and the air inlet.

8. The air duct docking structure according to claim 6, characterized in that: The air duct shell is provided with a first buckling portion, and the door stopper is provided with a second buckling portion. When the door stopper reaches a position to cover the air inlet, the first buckling portion and the second buckling portion buckle with each other to lock the door stopper and the air duct shell together.

9. The air duct docking structure according to claim 6, characterized in that: The door baffle comprises a baffle, a fixing seat and a lifting member, wherein the fixing seat is arranged on the air duct shell, and the lifting member is connected between the fixing seat and the baffle, and the lifting member can drive the baffle to move relative to the fixing seat so that the baffle opens or blocks the air inlet.

10. A cleaning device, characterized in that: It comprises the air duct docking structure as claimed in any one of claims 1 to 9.

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