Air duct structure, sewage tank and cleaning equipment

Abstract

The utility model provides an air duct structure, a sewage tank and cleaning equipment. The air duct structure comprises a suction part, an air inlet channel and a liquid suction structure, the suction part is used for generating suction airflow and providing power for flowing of gas and / or liquid; suction airflow can flow to the suction part through the air inlet channel; the liquid absorption structure at least comprises a first contact part and a second contact part, the first contact part is located in the air inlet channel, liquid at the first contact part can be conveyed to the second contact part, and the second contact part is located outside the air inlet channel and communicates with the outside. According to the air duct structure, the sewage tank and the cleaning equipment, the risk that liquid enters the suction part can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to an air duct structure, a sewage tank and cleaning equipment. Background Art

[0002] Cleaning equipment such as floor scrubbers can free hands and easily complete cleaning tasks such as mopping, and are favored by more and more consumers. Cleaning equipment including a suction piece and a sewage tank, the suction piece usually extracts air from the air outlet to form a negative pressure, and sucks solid and liquid garbage together with solid garbage into the sewage tank through a pipe to achieve dry and wet garbage collection and / or storage. However, during the operation of the cleaning equipment in the related art, there is a risk that liquid easily follows the air flow into the suction piece, resulting in the risk of liquid entering the suction piece. Utility Model Content

[0003] The utility model provides an air duct structure, a sewage tank and cleaning equipment, aiming to reduce the risk of liquid entering a suction piece.

[0004] The utility model provides an air duct structure, comprising:

[0005] A suction member, used for generating a suction airflow to provide power for the flow of gas and / or liquid;

[0006] an air inlet channel, through which the suction airflow can flow to the suction member;

[0007] The liquid absorption structure comprises at least a first contact portion and a second contact portion, wherein the first contact portion is located in the air inlet channel, and the liquid at the first contact portion can be transported to the second contact portion, and the second contact portion is located outside the air inlet channel and communicated with the outside.

[0008] The air duct structure of the utility model also includes:

[0009] An air outlet channel, wherein the second contact portion is located in the air outlet channel, and the air outlet channel is used to use airflow to bring liquid on the liquid absorbent structure away from the liquid absorbent structure.

[0010] In the air duct structure of the present invention, the suction airflow flowing through the suction member can flow to the air outlet channel.

[0011] In the air duct structure of the utility model, the first contact portion includes:

[0012] A plurality of first fins are arranged at intervals, and a first gap is formed between two adjacent first fins.

[0013] In the air duct structure of the present invention, the length extension direction of at least a portion of the first fins intersects with the airflow direction of the suction airflow flowing from the air inlet channel to the liquid suction structure.

[0014] In the air duct structure of the present invention, the length extension direction of at least part of the first fins is perpendicular to the airflow direction of the suction airflow flowing from the air inlet channel to the liquid suction structure.

[0015] In the air duct structure of the present invention, one of the two adjacent first fins is sleeved outside the other one at an interval.

[0016] In the air duct structure of the utility model, the second contact portion includes:

[0017] A plurality of second fins are arranged at intervals, and a second gap is formed between two adjacent second fins.

[0018] In the air duct structure of the present invention, the air duct structure further includes an air outlet channel, and an extension direction of the second gap is parallel to an airflow direction of an airflow flowing from the air outlet channel to the second contact portion.

[0019] In the air duct structure of the present invention, a plurality of the second fins are arranged in parallel at intervals, and the second fins are arranged in sequence.

[0020] In the air duct structure of the utility model, the liquid absorption structure also includes:

[0021] A connecting part, wherein the connecting part is arranged between the first contact part and the second contact part, the first contact part and the second contact part are respectively connected to the connecting part, the liquid at the first contact part can be transported to the second contact part through the connecting part, and the connecting part can prevent the suction airflow of the air inlet channel from flowing to the outside through the connecting part.

[0022] In the air duct structure of the present invention, the first contact portion, the connecting portion and the second contact portion are integrally formed.

[0023] In the air duct structure of the utility model, the air duct structure comprises:

[0024] The structural member is airtightly connected to the liquid absorbing structure, the liquid absorbing structure penetrates at least a portion of the structural member, and the first contact portion cooperates with the structural member to form at least a portion of the air inlet channel.

[0025] In the air duct structure of the utility model, the structural member is provided with a through hole, the air inlet channel is connected with the through hole, and the liquid absorption structure penetrates the through hole; the liquid absorption structure also includes:

[0026] The positioning part is protrudingly arranged on the liquid absorbing structure, and the positioning part is matched with the periphery of the through hole.

[0027] In the air duct structure of the utility model, the liquid absorption structure is detachably connected to the structural member.

[0028] In the air duct structure of the utility model, the structural member is used to be connected with the tank body of the sewage tank and cooperate to form a liquid storage cavity, and the air inlet channel is communicated with the liquid storage cavity.

[0029] In the air duct structure of the utility model, the air duct structure further includes an exhaust port, the exhaust port is connected to the air outlet channel of the air duct structure, and the airflow flowing through the air outlet channel can be discharged to the outside through the exhaust port.

[0030] In the air duct structure of the utility model, the air duct structure further includes:

[0031] The filter assembly is arranged in the air inlet channel and is used to filter the suction airflow flowing through the air inlet of the suction member; the first contact portion is located upstream of the filter assembly in the airflow flow direction.

[0032] In the air duct structure of the utility model, the air duct structure further includes:

[0033] The suction piece is connected to the mounting piece, and the mounting piece and the liquid suction structure cooperate to form at least a part of the air outlet channel of the air duct structure.

[0034] The utility model also provides a sewage tank, comprising:

[0035] The water tank body is used to form at least a part of the air inlet channel, the air inlet channel is used to communicate with the suction member, the suction member is used to generate a suction airflow, and the suction airflow can flow to the suction member through the air inlet channel;

[0036] The liquid absorption structure comprises at least a first contact portion and a second contact portion, wherein the first contact portion is located in the air inlet channel, and the liquid at the first contact portion can be transported to the second contact portion, and the second contact portion is located outside the air inlet channel and communicated with the outside.

[0037] An embodiment of the utility model further provides a cleaning device, comprising the air duct structure as described in any one of the above items or the sewage tank as described above.

[0038] The air duct structure, sewage tank and cleaning equipment provided by the utility model have a liquid suction structure that includes at least a first contact part and a second contact part, the first contact part is located in the air inlet channel, the liquid at the first contact part can be transported to the second contact part, the second contact part is located outside the air inlet channel and is connected to the outside world, so that the first contact part can capture the liquid in the suction airflow flowing through the air inlet channel, the liquid captured by the first contact part can be transported to the second contact part and leave the second contact part to the outside world, thereby improving the efficiency of the liquid suction structure in capturing the liquid in the suction airflow flowing through the air inlet channel, reducing the content of liquid in the suction airflow of the air inlet channel after capture, thereby reducing the probability of liquid entering the suction part along with the suction airflow in the air inlet channel, reducing the risk of liquid entering the suction part, ensuring that the suction part can work normally, and helping to extend the service life of the suction part.

[0039] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and cannot limit the disclosure of the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 It is a partial structural schematic diagram of a parent device of an air duct structure provided by an embodiment of the utility model, wherein the air duct structure is shown;

[0042] Figure 2 is a partial cross-sectional view of a parent device of an air duct structure provided by an embodiment of the utility model, wherein the air duct structure is shown;

[0043] Figure 3 is a cross-sectional view of a liquid absorbing structure provided by an embodiment of the utility model;

[0044] Figure 4 It is a structural schematic diagram of a liquid absorption structure provided by an embodiment of the utility model;

[0045] Figure 5 It is a structural schematic diagram of a liquid absorption structure provided by another embodiment of the utility model;

[0046] Figure 6 It is a structural schematic diagram of a liquid absorption structure provided by an embodiment of the utility model;

[0047] Figure 7 It is a structural schematic diagram of a sewage tank provided by an embodiment of the utility model;

[0048] Figure 8 yes Figure 2 A local enlarged schematic diagram at point A;

[0049] Fig. 9 It is a structural schematic diagram of a cleaning device provided in one embodiment of the utility model.

[0050] Description of reference numerals:

[0051] 1000. Cleaning equipment;

[0052] 100. Air duct structure;

[0053] 10. Suction piece; 11. Air inlet; 12. Air outlet;

[0054] 20. Air inlet channel;

[0055] 30. Liquid absorption structure; 31. First contact portion; 311. First fin; 312. First gap; 32. Second contact portion; 321. Second fin; 322. Second gap; 33. Connecting portion; 34. Positioning portion;

[0056] 40. air outlet channel; 50. exhaust port;

[0057] 60. structural member; 61. through hole; 62. hollow channel;

[0058] 70. Filter assembly; 80. Mounting piece;

[0059] 200, sewage tank; 201, water tank body; 2011, tank body; 202, liquid storage chamber; 300, fuselage; 400, cleaning component. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0062] It should also be understood that the terms used in the utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in the utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0063] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0064] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0065] See also Figures 1 to 3 The embodiment of the utility model provides an air duct structure 100, including a suction piece 10, an air inlet channel 20 and a liquid absorption structure 30; the suction piece 10 is used to generate a suction airflow to provide power for the flow of gas and / or liquid; the suction airflow can flow to the suction piece 10 through the air inlet channel 20; the liquid absorption structure 30 includes at least a first contact portion 31 and a second contact portion 32, the first contact portion 31 is located in the air inlet channel 20, and the liquid at the first contact portion 31 can be transported to the second contact portion 32, and the second contact portion 32 is located outside the air inlet channel 20 and communicated with the outside.

[0066] The air duct structure 100 of the above embodiment, since the liquid absorption structure 30 includes at least a first contact portion 31 and a second contact portion 32, the first contact portion 31 is located in the air inlet channel 20, and the liquid at the first contact portion 31 can be transported to the second contact portion 32, and the second contact portion 32 is located outside the air inlet channel 20 and is connected to the outside, so that the first contact portion 31 can capture the liquid in the suction airflow flowing through the air inlet channel 20, and the liquid captured by the first contact portion 31 can be transported to the second contact portion 32 and leave the second contact portion 32 to the outside, thereby improving the efficiency of the liquid absorption structure 30 in capturing the liquid in the suction airflow flowing through the air inlet channel 20, and reducing the content of liquid in the suction airflow of the air inlet channel 20 after capture, thereby reducing the probability of liquid entering the suction piece 10 along with the suction airflow in the air inlet channel 20, reducing the risk of liquid entering the suction piece 10, ensuring that the suction piece 10 can work normally, and helping to extend the service life of the suction piece 10.

[0067] Exemplarily, the air duct structure 100 is used for a parent device, and the parent device may include at least one of the following: a base station, a cleaning device 1000, other devices having the air duct structure 100, etc. The cleaning device 1000 may include at least one of the following: a floor scrubber, a floor washing vehicle, a water suction machine, a cleaning machine, a sweeper, a mopping machine, etc.

[0068] In some embodiments, the outside may include an air outlet channel 40. In other embodiments, the outside may include an area with natural wind, and the liquid at the second contact portion 32 may dry naturally.

[0069] In some embodiments, the air duct structure 100 further includes an air outlet channel 40 , and the second contact portion 32 is located in the air outlet channel 40 . The air outlet channel 40 is used to remove the liquid on the liquid absorbent structure 30 from the liquid absorbent structure 30 by airflow. The first contact portion 31 can capture liquid in the suction airflow flowing through the air inlet channel 20, and the liquid at the first contact portion 31 can be transported to the second contact portion 32. The airflow at the air outlet channel 40 can dry or carry away the liquid in the second contact portion 32 more efficiently and quickly. The drying or carrying away of the liquid in the second contact portion 32 is beneficial to increasing the rate at which the liquid at the first contact portion 31 is transported to the second contact portion 32. The faster the liquid in the second contact portion 32 is dried or carried away, the faster the liquid at the first contact portion 31 is transported to the second contact portion 32. This ensures that the liquid at the first contact portion 31 can be transported to the second contact portion 32 more efficiently and quickly, further improving the efficiency and rate of the first contact portion 31 capturing liquid in the airflow flowing through the air inlet channel 20, further reducing the probability of liquid entering the suction piece 10 along with the airflow in the air inlet channel 20, and further reducing the risk of liquid entering the suction piece 10.

[0070] In some embodiments, the suction airflow flowing through the suction member 10 can flow to the air outlet channel 40. In this way, the airflow flowing out of the suction member 10 can dry or take away the liquid at the second contact portion 32 when flowing through the air outlet channel 40, without the need to additionally set up a power mechanism for making the airflow in the air outlet channel 40 flow, so that the airflow in the air outlet channel 40 can effectively flow and take away the liquid at the second contact portion 32, which is conducive to improving the efficiency of taking away the liquid from the second contact portion 32, ensuring that the liquid at the first contact portion 31 can be continuously transported to the second contact portion 32 and ensuring that the first contact portion 31 can continuously capture the liquid in the suction airflow in the air inlet channel 20, thereby effectively reducing the probability of liquid entering the suction member 10 along with the suction airflow in the air inlet channel 20, and effectively reducing the risk of liquid entering the suction member 10; in addition, the air duct structure 100 has a small number of components and a simple structure. In other embodiments, the air outlet channel 40 may not be connected to the suction member 10, and the suction airflow does not flow through the air outlet channel 40. For example, a power mechanism such as a fan is additionally provided in the air outlet passage 40 to enable the air flow in the air outlet passage 40 to flow.

[0071] See also Figure 2 Exemplarily, the suction member 10 includes an air inlet 11 and an air outlet 12, and the air inlet 11 is connected to the air inlet channel 20. The air outlet 12 may be connected to the air outlet channel 40, or may not be connected to the air outlet channel 40, which is not limited here.

[0072] See also Figure 2 In some embodiments, the air outlet channel 40 is at least part of the air outlet path of the suction member 10. When the airflow carrying liquid flows through the air inlet channel 20, due to the high liquid absorption performance of the liquid absorption structure 30, the first contact portion 31 of the liquid absorption structure 30 will capture the liquid in the airflow in the air inlet channel 20, and the liquid at the first contact portion 31 will diffuse to the second contact portion 32. The liquid at the second contact portion 32 can be carried away by the high-speed airflow on the air outlet path of the suction member 10. Please refer to Figure 1 and Figure 2, exemplarily, the air duct structure 100 further includes an exhaust port 50, which is connected to the air outlet channel 40 of the air duct structure 100, and the airflow flowing through the air outlet channel 40 can be discharged to the outside through the exhaust port 50; when the suction member 10 is working, the airflow flowing out of the suction member 10 enters the air outlet channel 40 and can continuously remove the liquid at the second contact portion 32 of the liquid absorbing structure 30, and as the airflow continues to flow along the airflow direction and is discharged to the atmosphere or outside the air duct structure 100 through the exhaust port 50, the wetness of the second contact portion 32 is continuously reduced. The wetness of the first contact portion 31 provides a guarantee for the liquid at the first contact portion 31 to continue to diffuse to the second contact portion 32, so that the liquid absorbing structure 30 forms a working cycle of liquid capture-liquid diffusion-liquid air drying. This cycle continues to operate, and the liquid in the suction airflow flowing through the air inlet channel 20 is captured and diffused and air-dried in advance before flowing through the suction member 10, and discharged through the exhaust port 50, thereby reducing the probability of liquid entering the suction member 10 along with the suction airflow in the air inlet channel 20, and reducing the risk of liquid entering the suction member 10. For example, when the suction member 10 is working, the flow direction of the airflow flowing out of the suction member 10 in the air outlet channel 40 is as follows: Figure 2 As shown by the red dotted arrow 40a in FIG. 1 , when the suction member 10 is working, the flow direction of the suction airflow in the air inlet channel 20 is as follows: Figure 2 As shown by the black dotted arrow 20a.

[0073] Exemplarily, the suction member 10 includes at least one of the following: a fan structure, a vacuum pump, and the like.

[0074] Exemplarily, the liquid absorbing structure 30 is a capillary liquid absorbing structure. Exemplarily, the liquid absorbing structure 30 has fine pores inside, and the pores can play the role of capillaries. Exemplarily, the liquid absorbing structure 30 includes at least one of the following: filter cotton, alumina, ceramsite, polysilicon, molecular sieve, etc.

[0075] See also Figure 3 In some embodiments, the first contact portion 31 includes a plurality of first fins 311, and the plurality of first fins 311 are arranged at intervals, and a first gap 312 is formed between two adjacent first fins 311. The plurality of first fins 311 arranged at intervals can increase the contact area between the first contact portion 31 and the suction airflow in the air inlet channel 20, thereby facilitating the liquid absorption structure 30 to more efficiently capture the liquid in the suction airflow.

[0076] In some embodiments, the length extension direction of at least a portion of the first fin 311 intersects with the airflow direction of the suction airflow flowing from the air inlet channel 20 to the liquid suction structure 30. In this way, when the suction airflow flows through the air inlet channel 20, the first fin 311 can more effectively intercept and capture the liquid in the suction airflow in the air inlet channel 20, thereby effectively reducing the probability of the liquid in the suction airflow in the air inlet channel 20 flowing forward with the suction airflow, thereby effectively reducing the risk of liquid entering the suction member 10.

[0077] In some embodiments, the length extension direction of at least part of the first fin 311 is perpendicular to the airflow direction of the suction airflow flowing from the air inlet channel 20 to the liquid absorbing structure 30, so as to further reduce the probability that the liquid in the suction airflow in the air inlet channel 20 flows forward following the airflow direction. In other embodiments, the angle between the length extension direction of at least part of the first fin 311 and the airflow direction of the suction airflow flowing from the air inlet channel 20 to the liquid absorbing structure 30 may also be an acute angle or an obtuse angle.

[0078] The shape and / or number of the first fins 311 can be set according to actual needs. For example, the number of the first fins 311 includes two, three, four or more; the shapes of the two first fins 311 arranged at intervals can be the same or different. The shape of the first fin 311 can include a straight line or a curved shape. Exemplarily, the curved shape includes an arc, a ring or other curved shapes.

[0079] See also Figure 4 In some embodiments, a plurality of first fins 311 are arranged in parallel and at intervals to maximize the contact area between the first contact portion 31 and the suction airflow in the air inlet channel 20 within a limited space, thereby facilitating the first contact portion 31 to capture liquid in the suction airflow more efficiently. Figure 5 In some embodiments, one of the two adjacent first fins 311 is spaced apart and arranged outside the other one to increase the contact area between the first contact portion 31 and the suction airflow in the air inlet channel 20 as much as possible within a limited space, thereby accelerating the speed at which the first contact portion 31 captures the liquid in the suction airflow as much as possible.

[0080] See also Figure 6 In some embodiments, the second contact portion 32 includes a plurality of second fins 321 , and the plurality of second fins 321 are arranged at intervals, and a second gap 322 is formed between two adjacent second fins 321 to increase the contact area between the second contact portion 32 and the outside world and accelerate the drying speed of the liquid at the liquid absorption structure 30 .

[0081] In some embodiments, the extension direction of the second gap 322 is parallel to the airflow direction of the airflow flowing from the air outlet channel 40 to the second contact portion 32, so that the liquid flowing through the second contact portion 32 can at least partially follow the airflow and flow forward, thereby taking away the liquid in the liquid-absorbing structure 30 as quickly as possible. It can be understood that B and C are parallel, which may include B and C being completely parallel; or B and C are approximately parallel, and the angle between B and C is small, and the angle between B and C is less than 5°.

[0082] See also Figure 6 In some embodiments, a plurality of second fins 321 are arranged in parallel at intervals, and the second fins 321 are arranged in sequence to increase the contact area between the second contact portion 32 and the airflow as much as possible within a limited space, which is beneficial to accelerating the drying speed of the liquid at the liquid absorption structure 30.

[0083] See also Figure 6 In some embodiments, the liquid absorbing structure 30 further includes a connecting portion 33, which is disposed between the first contact portion 31 and the second contact portion 32. The first contact portion 31 and the second contact portion 32 are respectively connected to the connecting portion 33. The liquid captured by the first contact portion 31 can be transported to the second contact portion 32 via the connecting portion 33. The connecting portion 33 can prevent the suction airflow of the air inlet channel 20 from flowing to the outside through the connecting portion 33, so that the first contact portion 31 can capture the liquid in the suction airflow flowing through the air inlet channel 20, and the liquid at the second contact portion 32 can leave the liquid absorbing structure 30 to the outside, while ensuring that the suction member 10 can normally provide flow power for the gas and / or liquid. Exemplarily, the first fin 311 and the second fin 321 are respectively disposed on opposite sides of the connecting portion 33.

[0084] In some embodiments, the connection portion 33 is a solid structure and has a capillary effect. It can be understood that the connection portion 33 is a solid structure that can prevent the airflow in the air inlet channel 20 from entering the air outlet channel 40 through the connection portion 33, so as to ensure that the suction airflow does not directly pass through the liquid absorption structure 30 and affect the original airflow path, thereby ensuring that the suction member 10 provides the greatest possible flow power for the gas and / or liquid under a certain power consumption. The connection portion 33 has a capillary effect that enables the liquid at the first contact portion 31 to be transported to the second contact portion 32 through the connection portion 33.

[0085] In some embodiments, the first contact portion 31, the connecting portion 33, and the second contact portion 32 are integrally formed, which is conducive to the rapid diffusion of the liquid at the first contact portion 31 to the second contact portion 32 through the connecting portion 33, thereby improving the efficiency of the liquid absorbing structure 30 in capturing the liquid at the suction airflow; in addition, the first contact portion 31, the connecting portion 33, and the second contact portion 32 are integrally formed, which can reduce the number of components, improve the assembly efficiency of the air duct structure 100, and have a simple structure. In other embodiments, at least two of the first contact portion 31, the connecting portion 33, and the second contact portion 32 can also be separately provided. For example, the first contact portion 31, the connecting portion 33, and the second contact portion 32, the connection method between the first contact portion 31 and the connecting portion 33 includes at least one of the following: adhesive connection, snap connection, etc., and the connection method between the second contact portion 32 and the connecting portion 33 includes at least one of the following: adhesive connection, snap connection, etc.

[0086] See also Figure 7 In some embodiments, the air duct structure 100 includes a structural member 60, the structural member 60 is airtightly connected to the liquid absorbing structure 30, the liquid absorbing structure 30 penetrates at least a portion of the structural member 60, and the first contact portion 31 cooperates with the structural member 60 to form at least a portion of the air inlet channel 20. Since the liquid absorbing structure 30 penetrates at least a portion of the structural member 60, it provides a guarantee that the first contact portion 31 can be exposed to the air inlet channel 20 and the second contact portion 32 can be exposed to the outside, thereby enabling the liquid absorbing structure 30 to capture the liquid in the airflow in the air inlet channel 20 and disperse the liquid at the liquid absorbing structure 30 to the outside. Exemplarily, the second contact portion 32 cooperates with the structural member 60 to form at least a portion of the air outlet channel 40. In this way, the structural member 60 can be used to form at least a portion of the air inlet channel 20, and can be used to form at least a portion of the air outlet channel 40; the liquid absorption structure 30 can be used to form at least a portion of the air inlet channel 20, and can be used to form at least a portion of the air outlet channel 40, which is beneficial to reduce the number of components set and reduce the weight of the air duct structure 100. The structure of the air duct structure 100 is simple.

[0087] See also Figure 7 In some embodiments, the structural member 60 is provided with a through hole 61, the air inlet channel 20 is connected to the through hole 61, and the liquid absorption structure 30 is penetrated by the through hole 61. Exemplarily, the structural member 60 is formed with a through hole 61 and a hollow channel 62, the through hole 61 penetrates the channel wall of the hollow channel 62, and the through hole 61 is connected to the hollow channel 62. The first contact portion 31 cooperates with the channel wall of the hollow channel 62 to form at least part of the air inlet channel 20. Exemplarily, the air inlet channel 20 and the air outlet channel 40 are respectively connected to the through hole 61. Please refer to Figure 6, exemplarily, the liquid absorbing structure 30 further includes a positioning portion 34, which is convexly disposed on the liquid absorbing structure 30, and the positioning portion 34 cooperates with the periphery of the through hole 61. When the liquid absorbing structure 30 is installed, the positioning portion 34 can abut against the periphery of the through hole 61 to position the liquid absorbing structure 30, which is conducive to quickly and accurately assembling the liquid absorbing structure 30 and the structural member 60. Exemplarily, the positioning portion 34, the first contact portion 31, the connecting portion 33 and the second contact portion 32 are integrally formed, so that the number of components is small, which is conducive to improving the assembly efficiency of the air duct structure 100, and the structure is simple.

[0088] In some embodiments, the liquid absorbing structure 30 is detachably connected to the structural member 60, so that the user can replace or clean the liquid absorbing structure 30 as needed. The detachable connection method between the liquid absorbing structure 30 and the structural member 60 may include at least one of the following: snap connection, magnetic connection, etc. In other embodiments, the connection method between the liquid absorbing structure 30 and the structural member 60 may also include adhesive connection, etc.

[0089] See also Figure 7 In some embodiments, the structural member 60 is used to connect with the water tank body 201 of the sewage tank 200 and cooperate to form a liquid storage chamber 202, and the air inlet channel 20 is connected to the liquid storage chamber 202. When a certain amount of liquid is stored in the liquid storage chamber 202 of the sewage tank 200, if the cleaning device 1000 performs a cleaning operation, the liquid is easy to shake in the sewage tank 200. In addition, the power provided by the suction member 10 can easily stir the liquid in the sewage tank 200 to produce droplets that are carried away by the suction airflow. The suction airflow carrying the droplets enters the air inlet channel 20 and flows forward in the air inlet channel 20. The liquid suction structure 30 can capture at least part of the droplets in the suction airflow in the air inlet channel 20, so that the liquid and the gas are at least partially separated, reducing the probability of liquid entering the suction member 10 along with the suction airflow at the air inlet channel 20, and reducing the risk of liquid entering the suction member 10. Please refer to Figure 7 , illustratively, the structural member 60 is a tank cover of the sewage tank 200 .

[0090] See also Figure 1In some embodiments, the air duct structure 100 further includes an exhaust port 50, which is in communication with the air outlet channel 40, and the airflow flowing through the air outlet channel 40 can be discharged through the exhaust port 50. The setting of the exhaust port 50 provides a guarantee for the airflow in the air outlet channel 40 to flow, and further provides a guarantee for the airflow in the air outlet channel 40 to be able to take away the liquid at the second contact portion 32. The number of exhaust ports 50 can be multiple, such as two, three, four or more. The number of exhaust ports 50 is multiple, which can make the area of ​​the airflow in the air outlet channel 40 larger, which is conducive to the efficient and immediate discharge of the airflow in the air outlet channel 40, thereby facilitating the immediate drying and taking away of the liquid at the second contact portion 32, improving the efficiency of drying or taking away the liquid at the second contact portion 32, further facilitating the first contact portion 31 to transport the liquid to the second contact portion 32, further facilitating the liquid in the suction airflow of the air inlet channel 20 to be absorbed or captured by the first contact portion 31, and further effectively reducing the probability of the liquid entering the suction member 10 along with the suction airflow at the air inlet channel 20.

[0091] See also Figure 8 In some embodiments, the air duct structure 100 further includes a filter assembly 70, which is disposed in the air inlet channel 20 and is used to filter the suction airflow flowing through the air inlet 11; the first contact portion 31 is located upstream of the filter assembly 70 in the airflow flow direction. Before the airflow flows through the suction member 10, the filter assembly 70 can filter the suction airflow, and the suction airflow filtered by the filter assembly 70 can enter the suction member 10, thereby minimizing the damage to the suction member 10 caused by solid impurities and / or a small amount of liquid entering the suction member 10. In addition, the first contact portion 31 is located upstream of the airflow direction relative to the filter assembly 70, so that the first contact portion 31 can capture the liquid in the suction airflow in the air inlet channel 20, and the suction airflow after the first contact portion 31 captures the liquid continues to flow to the filter assembly 70, so that the liquid carried by the suction airflow through the filter assembly 70 is reduced, and when the suction airflow flows through the filter assembly 70, there will be no excess liquid remaining in the filter assembly 70, which reduces the accumulation of liquid at the filter assembly 70, reduces the risk of liquid reaching the suction member 10 and causing liquid to enter the suction member 10; and can improve the filtration efficiency, reduce the filtration cost, and reduce the user's use cost. Exemplarily, the filter assembly 70 is arranged on the structural member 60. In other embodiments, the filter assembly 70 can also be arranged on other components of the air duct structure 100 or the sewage tank 200, which is not limited here.

[0092] Exemplarily, the filter assembly 70 includes at least one of the following: a nylon mesh, a HEPA (High Efficiency Particulate Air Filter) assembly, etc. For example, the filter assembly 70 includes a HEPA assembly, which can prevent a small amount of droplets in the suction airflow from entering the suction piece 10. The HEPA assembly has a certain liquid-proof performance and air-permeability, and has dense fine micropores. Due to the small distance between water molecules and the surface tension when they are aggregated into droplets, water molecules cannot directly pass through the HEPA assembly under normal pressure, but due to the large distance between gas molecules, gas can easily pass through the HEPA assembly. Therefore, the HEPA assembly can prevent a small amount of droplets from entering the suction piece 10 and prevent the suction piece 10 from entering liquid.

[0093] Exemplarily, the filter assembly 70 includes a Hypa assembly. It is understandable that the prior art often adopts a method of only setting a Hypa assembly in front of the suction piece to prevent the suction piece 10 from entering the liquid. When the Hypa assembly is in continuous use, the droplets in the suction airflow are continuously intercepted by the Hypa assembly. Since the suction piece 10 continues to work, there is pressure in the direction of the suction piece 10 at both ends of the Hypa assembly, causing the droplets intercepted by the Hypa assembly to continue to gather at the bottom 701 of the Hypa assembly, and the number of droplets is increasing. When the droplets at the bottom 701 of the Hypa assembly gather to a certain extent, the space for the suction airflow to pass through the Hypa assembly becomes smaller, and the pressure difference at both ends of the Hypa assembly becomes larger. The droplets will be sucked into the suction piece 10 and pass through the Hypa assembly, causing the liquid-proof performance of the Hypa assembly to fail, thereby causing the suction piece 10 to enter the liquid. In this embodiment, the filter assembly 70 includes a Hypa assembly, and the first contact portion 31 is located upstream of the Hypa assembly in the air flow direction, so that the suction airflow in the air inlet channel 20 can first flow through the first contact portion 31, and the first contact portion 31 can capture the liquid in the suction airflow. After the suction airflow captures the liquid by the first contact portion 31, it continues to flow downstream to the Hypa assembly, so that the liquid carried by the suction airflow passing through the Hypa assembly is reduced. When the suction airflow flows through the Hypa assembly, no excessive liquid will remain at the bottom 701 of the Hypa assembly, thereby effectively reducing the risk of failure of the liquid-proof performance of the Hypa assembly, thereby minimizing the risk of liquid reaching the suction piece 10 and causing liquid to enter the suction piece 10.

[0094] See also Figure 2In some embodiments, the air duct structure 100 further includes a mounting member 80, the suction member 10 is connected to the mounting member 80, and the mounting member 80 and the liquid absorption structure 30 cooperate to form at least part of the air outlet channel 40. In this way, in addition to being used to mount the suction member 10, the mounting member 80 can also be used to form the air outlet channel 40, so that the functions of the mounting member 80 are diversified, the utilization rate of the mounting member 80 is improved, the number of components is reduced, and the structure of the air duct structure 100 is simplified and compact. Exemplarily, the mounting member 80, the liquid absorption structure 30 and the structural member 60 cooperate to form at least part of the air outlet channel 40 of the air duct structure 100.

[0095] Understandably, Figure 2 and Figure 8 The dotted arrow in the figure indicates the flow direction of the suction airflow in one embodiment of the present invention, which is only for illustrative purposes and does not limit the present invention. In actual application, the flow direction of the suction airflow can be changed according to actual needs.

[0096] See also Figure 7 The embodiment of the utility model further provides a sewage tank 200, which includes a water tank body 201. The water tank body 201 is used to form at least part of the air inlet channel 20. The air inlet channel 20 is used to communicate with the suction member 10. The suction member 10 is used to generate a suction airflow, which can flow to the suction member 10 through the air inlet channel 20; the liquid suction structure 30 includes at least a first contact portion 31 and a second contact portion 32. The first contact portion 31 is located in the air inlet channel 20. The liquid at the first contact portion 31 can be transported to the second contact portion 32. The second contact portion 32 is located outside the air inlet channel 20 and is connected to the outside.

[0097] In the sewage tank 200 of the above embodiment, since the liquid absorption structure 30 includes at least a first contact portion 31 and a second contact portion 32, the first contact portion 31 is located in the air inlet channel 20, and the liquid at the first contact portion 31 can be transported to the second contact portion 32, and the second contact portion 32 is located outside the air inlet channel 20 and is connected to the outside, so that the first contact portion 31 can capture the liquid in the suction airflow flowing through the air inlet channel 20, and the liquid captured by the first contact portion 31 can be transported to the second contact portion 32 and leave the second contact portion 32 to the outside, thereby improving the efficiency of the liquid absorption structure 30 in capturing the liquid in the suction airflow flowing through the air inlet channel 20, and reducing the content of liquid in the suction airflow of the air inlet channel 20 after capture, thereby reducing the probability of liquid entering the suction member 10 along with the suction airflow in the air inlet channel 20, reducing the risk of liquid entering the suction member 10, ensuring that the suction member 10 can work normally, and facilitating extending the service life of the suction member 10.

[0098] Exemplarily, the water tank body 201 includes the water tank body 201 of any of the above embodiments. The air inlet channel 20 includes the air inlet channel 20 of any of the above embodiments. The suction piece 10 includes the suction piece 10 of any of the above embodiments. The liquid absorption structure 30 includes the liquid absorption structure 30 of any of the above embodiments.

[0099] See also Figure 7 In some embodiments, the water tank body 201 includes a box body 2011 and a box cover, and the box body 2011 is connected to the box cover. Exemplarily, the structural member 60 is the box cover of the water tank body 201. Exemplarily, the box cover is sealed and connected to the box body 2011, for example, the box cover is sealed and connected to the box body 2011 through a sealing strip, so as to prevent gas and / or liquid from entering the sewage tank 200 from the outside of the sewage tank 200 through the connection between the box cover and the box body 2011, and / or from flowing from the inside of the sewage tank 200 to the outside of the sewage tank 200 through the connection between the box cover and the box body 2011.

[0100] See also Fig. 9 The embodiment of the utility model further provides a cleaning device 1000, including the air duct structure 100 of any one of the above embodiments or the sewage tank 200 of any one of the above embodiments.

[0101] See also Fig. 9 In some embodiments, the cleaning device 1000 further includes a body 300 and a cleaning component 400 , the cleaning component 400 and the sewage tank 200 are installed on the body 300 , and the suction member 10 is installed on at least one of the sewage tank 200 and the body 300 .

[0102] The cleaning device 1000 of the above embodiment, since the liquid absorption structure 30 includes at least a first contact portion 31 and a second contact portion 32, the first contact portion 31 is located in the air inlet channel 20, and the liquid captured by the first contact portion 31 can be transported to the second contact portion 32, and the second contact portion 32 is located outside the air inlet channel 20 and is connected to the outside world, so that the first contact portion 31 can capture liquid in the suction airflow flowing through the air inlet channel 20, and the liquid at the first contact portion 31 can be transported to the second contact portion 32 and leave the second contact portion 32 to the outside world, thereby improving the efficiency of the liquid absorption structure 30 in capturing liquid in the suction airflow flowing through the air inlet channel 20, thereby reducing the probability of liquid entering the suction piece 10 along with the suction airflow in the air inlet channel 20, reducing the risk of liquid entering the suction piece 10, ensuring that the suction piece 10 can work normally, and helping to extend the service life of the suction piece 10.

[0103] It can be understood that the cleaning component 400 is used to clean the surface to be cleaned. The surface to be cleaned includes the ground, glass surface or object surface, etc. Exemplarily, the cleaning component 400 includes a floor brush component. Exemplarily, the sewage tank 200 is connected to the cleaning component 400, and the suction member 10 can provide suction force when working, and after the dirt (including at least one of sewage, solid-liquid mixture, etc.) on the surface to be cleaned is sucked into the suction channel of the cleaning device 1000, the dirt in the suction channel enters the sewage tank 200 along the direction of the suction airflow, thereby achieving the cleaning of the surface to be cleaned. Since the liquid storage chamber 202 of the sewage tank 200 is connected to the air inlet channel 20, when a certain amount of liquid is stored in the liquid storage chamber 202 of the sewage tank 200, if the cleaning device 1000 performs a cleaning operation, the liquid is likely to shake in the sewage tank 200. In addition, the power provided by the suction piece 10 can easily stir the liquid in the sewage tank 200 to produce droplets that are carried away by the suction airflow. The suction airflow carrying the droplets enters the air inlet channel 20 and flows forward in the air inlet channel 20. The liquid suction structure 30 can capture at least part of the droplets in the suction airflow in the air inlet channel 20, so that the liquid and the gas are at least partially separated, thereby reducing the probability of liquid entering the suction piece 10 along with the suction airflow at the air inlet channel 20, and reducing the risk of liquid entering the suction piece 10.

[0104] Exemplarily, the cleaning device 1000 includes a floor scrubber. When the floor scrubber cleans the floor, the air inlet channel 20 is connected to the liquid storage chamber 202, and the suction member 10 is used to provide negative pressure for the sewage tank 200 to suck the dirt generated during the cleaning process of the floor scrubber into the sewage tank 200, thereby completing the comprehensive cleaning of the floor.

[0105] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "mechanically coupled" and "coupled" 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 or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. The mechanical coupling or coupling of two components includes direct coupling and indirect coupling, for example, direct fixed connection, connection through a transmission mechanism, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0106] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0107] The disclosure above provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described above. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0108] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific method steps, features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific method steps, features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0109] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An air duct structure, characterized in that: include: A suction member, used for generating a suction airflow to provide power for the flow of gas and / or liquid; an air inlet channel, through which the suction airflow can flow to the suction member; The liquid absorption structure comprises at least a first contact portion and a second contact portion, wherein the first contact portion is located in the air inlet channel, and the liquid at the first contact portion can be transported to the second contact portion, and the second contact portion is located outside the air inlet channel and communicated with the outside.

2. The air duct structure according to claim 1, characterized in that: Also includes: An air outlet channel, wherein the second contact portion is located in the air outlet channel, and the air outlet channel is used to use airflow to bring liquid on the liquid absorbent structure away from the liquid absorbent structure.

3. The air duct structure according to claim 2, characterized in that: The suction airflow flowing through the suction piece can flow to the air outlet channel.

4. The air duct structure according to claim 1, characterized in that: The first contact portion comprises: A plurality of first fins are arranged at intervals, and a first gap is formed between two adjacent first fins.

5. The air duct structure according to claim 4, characterized in that: The length extension direction of at least a portion of the first fins intersects with the airflow direction of the suction airflow flowing from the air inlet channel to the liquid suction structure.

6. The air duct structure according to claim 5, characterized in that: The length extension direction of at least a portion of the first fins is perpendicular to the airflow direction of the suction airflow flowing from the air inlet channel to the liquid suction structure.

7. The air duct structure according to claim 4, characterized in that: One of two adjacent first fins is sleeved outside the other one with an interval.

8. The air duct structure according to claim 1, characterized in that: The second contact portion includes: A plurality of second fins are arranged at intervals, and a second gap is formed between two adjacent second fins.

9. The air duct structure according to claim 8, characterized in that: The air duct structure further includes an air outlet channel, and an extending direction of the second gap is parallel to an airflow direction of an airflow flowing from the air outlet channel to the second contact portion.

10. The air duct structure according to claim 8, characterized in that: A plurality of the second fins are arranged in parallel at intervals, and the second fins are arranged in sequence.

11. The air duct structure according to claim 1, characterized in that: The liquid absorbing structure also includes: A connecting part, wherein the connecting part is arranged between the first contact part and the second contact part, the first contact part and the second contact part are respectively connected to the connecting part, the liquid at the first contact part can be transported to the second contact part through the connecting part, and the connecting part can prevent the suction airflow of the air inlet channel from flowing to the outside through the connecting part.

12. The air duct structure according to claim 11, characterized in that: The first contact portion, the connecting portion and the second contact portion are integrally formed.

13. The air duct structure according to claim 1, characterized in that: The air duct structure comprises: The structural member is airtightly connected to the liquid absorbing structure, the liquid absorbing structure penetrates at least a portion of the structural member, and the first contact portion cooperates with the structural member to form at least a portion of the air inlet channel.

14. The air duct structure according to claim 13, characterized in that: The structural member is provided with a through hole, the air inlet channel is connected with the through hole, and the liquid absorption structure passes through the through hole; the liquid absorption structure also includes: The positioning part is protrudingly arranged on the liquid absorbing structure, and the positioning part is matched with the periphery of the through hole.

15. The air duct structure according to claim 13, characterized in that: The liquid absorption structure is detachably connected to the structural member.

16. The air duct structure according to claim 13, characterized in that: The structural member is used to be connected with the tank body of the sewage tank and cooperate to form a liquid storage cavity, and the air inlet channel is communicated with the liquid storage cavity.

17. The air duct structure according to any one of claims 1 to 16, characterized in that: The air duct structure further includes an exhaust port, which is communicated with an air outlet channel of the air duct structure, and the airflow flowing through the air outlet channel can be discharged to the outside through the exhaust port.

18. The air duct structure according to any one of claims 1 to 16, characterized in that: The air duct structure also includes: The filter assembly is arranged in the air inlet channel and is used to filter the suction airflow flowing through the air inlet of the suction member; the first contact portion is located upstream of the filter assembly in the airflow flow direction.

19. The air duct structure according to any one of claims 1 to 16, characterized in that: The air duct structure also includes: The suction piece is connected to the mounting piece, and the mounting piece and the liquid suction structure cooperate to form at least a part of the air outlet channel of the air duct structure.

20. A sewage tank, characterized in that: include: The water tank body is formed with at least a portion of an air inlet channel, the air inlet channel is used to communicate with the suction member, the suction member is used to generate a suction airflow, and the suction airflow can flow to the suction member through the air inlet channel; The liquid absorption structure comprises at least a first contact portion and a second contact portion, wherein the first contact portion is located in the air inlet channel, and the liquid at the first contact portion can be transported to the second contact portion, and the second contact portion is located outside the air inlet channel and communicated with the outside.

21. A cleaning device, characterized in that: It comprises the air duct structure as described in any one of claims 1 to 19 or the sewage tank as described in claim 20.

Images