Air duct structure of scrubber, scrubber and control method of scrubber

Abstract

The application provides a kind of air duct structure of floor cleaning machine, floor cleaning machine includes: base, first rolling brush and second rolling brush;First rolling brush and second rolling brush are respectively arranged at the two ends of base moving direction, and the air duct structure is arranged in the inside of base;Air duct structure includes: first air duct, second air duct, third air duct and adjusting part;The air inlet of first air duct is correspondingly arranged with first rolling brush, and is communicated with third air duct;The air inlet of second air duct is correspondingly arranged with second rolling brush, and is communicated with third air duct;Adjusting part is arranged in second air duct, for adjusting the gas flow area of second air duct.The application is adjusted by setting adjusting part, adjusting part is located in the inside of second air duct, to adjust the gas flow area of second air duct, and then the suction of the air inlet of first air duct and second air duct is adjusted according to working condition, to ensure cleaning ability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to an air duct structure of a scrubber, the scrubber and a control method of the scrubber. BACKGROUND

[0002] The scrubber is a mechanical equipment for replacing manual cleaning operation and is widely applied to public place cleaning and home cleaning. The structure of the scrubber mainly comprises a handle, a scrubber main body and a mop head connected in sequence. The scrubber main body is mainly provided with a clean water tank, a sewage tank and a suction motor for suction. The mop head is provided with a rolling brush for cleaning the ground. During operation, the clean water tank supplies clean water to the rolling brush to clean the ground. At the same time, the suction motor is started to suck the sewage after cleaning into the air duct and finally into the sewage tank. Such a small household scrubber is widely favored by the public due to its convenience and practicality.

[0003] The existing single-rolling brush scrubber has strong suction but can only clean the dirt in front. It cannot clean the remaining stains in one pass and the single air duct has a relatively high probability of being blocked. The existing double-rolling brush scrubber can clean the dirt in front and back in one pass, but the suction of the double air duct is dispersed, resulting in a decrease in cleaning capacity. SUMMARY

[0004] The present application provides an air duct structure of a scrubber to solve the above problems in the prior art.

[0005] The present application also provides a scrubber.

[0006] The present application also provides a control method of the scrubber.

[0007] According to the first aspect of the present application, an air duct structure of a scrubber is provided, wherein the scrubber comprises a base, a first rolling brush and a second rolling brush.

[0008] The first rolling brush and the second rolling brush are respectively arranged at two ends of the base in the moving direction of the base. An air duct structure is arranged inside the base.

[0009] The air duct structure comprises a first air duct, a second air duct, a third air duct and an adjusting part.

[0010] The air inlet of the first air duct is arranged corresponding to the first rolling brush and is in communication with the third air duct.

[0011] The air inlet of the second air duct is arranged corresponding to the second rolling brush and is in communication with the third air duct.

[0012] The adjusting part is arranged in the second air duct and is used for adjusting the gas flow area of the second air duct.

[0013] According to an embodiment of the present application, the adjusting part comprises a valve body and a sealing member;

[0014] The sealing member is arranged at one end of the valve body, and the sealing member is inside the second air duct;

[0015] The sealing member is movable in the second air duct under the action of the valve body, for adjusting the gas flow area of the second air duct.

[0016] According to an embodiment of the present application, the sealing member comprises a sealing rod and a sealing plate;

[0017] One end of the sealing rod is connected with the valve body, and the other end of the sealing rod is connected with the sealing plate;

[0018] The sealing plate and at least part of the sealing rod are arranged in the second air duct;

[0019] When the second air duct is closed, the sealing plate abuts against the inner wall of the second air duct to adjust the gas flow area of the second air duct.

[0020] According to an embodiment of the present application, the lateral flow area of the gas flow in the second air duct gradually decreases along the flow direction of the gas flow;

[0021] The diameter of the end of the second air duct close to the valve body is adapted to the diameter of the sealing plate.

[0022] According to an embodiment of the present application, the sealing plate is a sealing structure made of silica gel material.

[0023] According to the second aspect of the present application, a floor cleaning machine is provided, comprising the air duct structure described above.

[0024] According to an embodiment of the present application, comprising a base, a first roller brush, a second roller brush, a first sensor and a second sensor;

[0025] The first roller brush and the second roller brush are symmetrically arranged on opposite sides of the base;

[0026] The first sensor is arranged on one side of the bottom of the base close to the first roller brush, for detecting the dirt degree in the collection area;

[0027] The second sensor is arranged on one side of the bottom of the base close to the second roller brush, for detecting the dirt degree in the collection area.

[0028] According to the third aspect of the present application, a control method of a floor cleaning machine is provided, comprising:

[0029] Obtaining parameter information of the floor cleaning machine in the collection area;

[0030] generate a wind channel control strategy according to the parameter information;

[0031] adjust a gas flow area of the wind channel structure according to the wind channel control strategy.

[0032] According to an embodiment of the present application, the step of adjusting the gas flow area of the wind channel structure according to the wind channel control strategy specifically comprises:

[0033] determine the dirtiness degree of the collection area according to the parameter information;

[0034] obtain the working direction of the scrubber;

[0035] determine that the working direction is a first direction and the dirtiness degree is greater than or equal to a dirtiness degree threshold, and control the adjusting part to reduce the gas flow area of the second wind channel;

[0036] determine that the working direction is a second direction and the dirtiness degree is greater than or equal to a dirtiness degree threshold, and control the adjusting part to increase the gas flow area of the second wind channel and increase the total suction of the scrubber;

[0037] wherein the first direction is a direction in which the first roller brush runs with the head end;

[0038] the second direction is a direction in which the second roller brush runs with the head end.

[0039] According to an embodiment of the present application, the step of adjusting the gas flow area of the wind channel structure according to the wind channel control strategy specifically comprises:

[0040] after a preset cleaning time, obtain the cleanliness degree in the cleaning area sent by other sensors in the Internet of Things;

[0041] determine that the cleanliness degree does not satisfy a cleanliness degree threshold, and control the adjusting part to move to completely close the second wind channel.

[0042] According to an embodiment of the present application, the step of adjusting the gas flow area of the wind channel structure according to the wind channel control strategy specifically comprises:

[0043] determine that the working direction of the scrubber is a first direction;

[0044] determine that the first suction of the first wind channel becomes smaller and the change rate of the first suction is greater than a change rate threshold;

[0045] control the adjusting part to move and reduce the gas flow area of the second wind channel to increase the flow distribution of the first wind channel;

[0046] The first direction is a direction of a head end of the first rolling brush running direction.

[0047] The parameter information includes a first suction force of the first air duct, a second suction force of the second air duct, and a dirt degree in the collection area.

[0048] The above one or more technical solutions in the application have at least one of the following technical effects: the air duct structure of the scrubber, the scrubber and the control method of the scrubber provided by the application have the following advantages: the adjusting part is arranged in the second air duct to adjust the gas flow area of the second air duct, and then the suction force at the air inlet of the first air duct and the second air duct is adjusted according to the working condition, the gas flow area of the air duct structure is selectively adjusted according to different working conditions, compared with the single-rolling-brush scrubber and the double-rolling-brush scrubber, the dirt in the front and rear areas can be cleaned at one time, the suction force can be concentrated according to the working condition, the cleaning capacity is ensured, and the cleaning efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0050] Figure 1 is one of the structure schematic diagrams of the air duct structure of the scrubber provided by the application;

[0051] Figure 2 is the second structure schematic diagram of the air duct structure of the scrubber provided by the application;

[0052] Figure 3 is the third structure schematic diagram of the air duct structure of the scrubber provided by the application;

[0053] Figure 4 is the fourth structure schematic diagram of the air duct structure of the scrubber provided by the application;

[0054] Figure 5 is the fifth structure schematic diagram of the air duct structure of the scrubber provided by the application;

[0055] Figure 6 is one of the flow schematic diagrams of the control method of the scrubber provided by the application;

[0056] Figure 7 is the second flow schematic diagram of the control method of the scrubber provided by the application;

[0057] Figure 8 is the third flowchart of the control method of the scrubber provided by the present application;

[0058] Figure 9 is the fourth flowchart of the control method of the scrubber provided by the present application.

[0059] Reference signs:

[0060] 10, base; 20, first roller brush; 30, second roller brush; 40, first air duct; 50, second air duct; 52, third air duct; 60, adjusting part; 62, valve body; 64, sealing piece; 65, sealing rod; 66, sealing plate. DETAILED DESCRIPTION

[0061] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0062] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0063] The following will be described in combination with Figures 1-9 The air duct structure of the scrubber, the scrubber and the control method of the scrubber of the present application are described.

[0064] Figure 1 is a structural schematic diagram of the air duct structure of the scrubber provided by the present application, as Figure 1 shown, the scrubber comprises a base 10, a first roller brush 20 and a second roller brush 30, the first roller brush 20 and the second roller brush 30 are respectively arranged at two ends of the moving direction of the base 10, and an air duct structure is arranged inside the base 10; the air duct structure comprises a first air duct 40 and a second air duct 50, an air inlet of the first air duct 40 is arranged corresponding to the first roller brush 20, and an air inlet of the second air duct 50 is arranged corresponding to the second roller brush 30.

[0065] Figure 2 and Figure 3 is a structural schematic view of the air duct structure of the floor cleaning machine provided by the present application, as Figure 2 and Figure 3 shown, the air duct structure of the floor cleaning machine provided by the present application comprises: a first air duct 40, a second air duct 50, a third air duct 52 and an adjusting part 60; the air inlet of the first air duct 40 is arranged corresponding to the first roller brush 20 and communicates with the third air duct 52; the air inlet of the second air duct 50 is arranged corresponding to the second roller brush 30 and communicates with the third air duct 52; the adjusting part 60 is arranged in the second air duct 50 and is used for adjusting the gas flow area of the second air duct 50; the air duct structure is arranged inside the base 10, the air inlet of the first air duct 40 is arranged corresponding to the first roller brush 20, and the air inlet of the second air duct 50 is arranged corresponding to the second roller brush 30.

[0066] Figure 4 and Figure 5 is a structural schematic view of the air duct structure of the floor cleaning machine provided by the present application, as Figure 4 and Figure 5 shown, the air duct structure of the floor cleaning machine provided by the present application comprises: a first air duct 40, a second air duct 50, a third air duct 52 and an adjusting part 60, the first air duct 40 communicates with the third air duct 52, the second air duct 50 communicates with the third air duct 52, the adjusting part 60 comprises: a valve body 62 and a sealing part 64, wherein the sealing part 64 is composed of a sealing rod 65 and a sealing plate 66, the sealing part 64 is arranged at one end of the valve body 62, and the sealing part 64 is inside the second air duct 50, one end of the sealing rod 65 is connected with the valve body 62, the other end of the sealing rod 65 is connected with the sealing plate 66, the valve body 62 can be adjusted in relative position along the extension direction, the airflow blows on one side surface of the sealing plate 66, and part of the airflow is blocked, when the sealing plate 66 abuts against the inner wall of the second air duct 50, the airflow is completely blocked, and the second air duct 50 is closed.

[0067] Figure 6 is a flow schematic view of the control method of the floor cleaning machine provided by the present application, as Figure 6 shown, the control method of the floor cleaning machine provided by the present application comprises:

[0068] Step S100: acquiring parameter information of the floor cleaning machine in the collection area;

[0069] Step S200: generating an air duct control strategy according to the parameter information;

[0070] Step S300: adjusting the gas flow area of the air duct structure according to the air duct control strategy.

[0071] Specifically, the existing double-roller brush floor cleaning machine can clean the dirt in front and back at a time, but the cleaning ability is reduced due to the dispersion of the suction force of the double air ducts, and the double air ducts cannot be controlled according to the working conditions.

[0072] Further, the present application provides a control method of the scrubber, first acquires the parameter information in the collection area, and generates the air duct control strategy according to the parameter information, adjusts the gas flow area of the second air duct 50 according to the air duct control strategy, selectively adjusts the gas flow area of the air duct structure for different working conditions, compared with the single roller brush scrubber and the double roller brush scrubber, can clean the dirt in the front and rear areas at one time, can concentrate the suction force for the working condition, ensures the cleaning ability, and improves the cleaning efficiency.

[0073] Figure 7 is the flowchart of the control method of the scrubber provided by the present application, as Figure 7 shown, the control method of the scrubber provided by the present application comprises:

[0074] Step S310: determining the dirt degree of the collection area according to the parameter information;

[0075] Step S312: acquiring the working direction of the scrubber;

[0076] Step S313: determining that the working direction is the first direction, and the dirt degree is greater than or equal to the dirt degree threshold value, controlling the adjusting part 60 to reduce the gas flow area of the second air duct 50;

[0077] Specifically, first, the parameter information is taken, and the dirt degree in the collection area is determined, then the working direction of the scrubber is acquired, when the working direction is the first direction, that is, the direction of the first roller brush 20 at the head end when the scrubber works, if the dirt degree in the collection area is greater than the dirt degree threshold value, that is, the ordinary double air duct mode is adopted, which is insufficient to meet the cleaning demand, at this time, the adjusting part 60 is controlled to move, and the gas flow area of the second air duct 50 is reduced.

[0078] Step S314: determining that the working direction is the second direction, and the dirt degree is greater than or equal to the dirt degree threshold value, controlling the adjusting part 60 to increase the gas flow area of the second air duct 50, and improving the total suction of the scrubber;

[0079] Specifically, first, the parameter information is taken, and the dirt degree in the collection area is determined, then the working direction of the scrubber is acquired, when the working direction is the second direction, that is, the direction of the second roller brush 30 at the head end when the scrubber works, if the dirt degree in the collection area is greater than the dirt degree threshold value, that is, the ordinary double air duct mode is adopted, which is insufficient to meet the cleaning demand, the adjusting part 60 is controlled, the gas flow area of the second air duct 50 is increased, and the total suction of the scrubber is improved, so as to ensure the cleaning ability.

[0080] Figure 8 is the flowchart of the control method of the scrubber provided by the present application, as Figure 8As shown, the control method of the floor cleaning machine provided by the present application comprises:

[0081] Step S320: After the preset cleaning time, the cleanliness in the cleaning area sent by other sensors in the Internet of Things is obtained.

[0082] Step S322: Determine that the cleanliness does not meet the cleanliness threshold, and control the adjusting part 60 to move to completely close the second air duct 50.

[0083] Specifically, after a period of cleaning operation, the cleanliness in the cleaning area is obtained by other sensors connected by communication in the Internet of Things and sent to the floor cleaning machine. If the cleanliness does not meet the cleanliness threshold, that is, the cleaning effect is poor, the adjusting part 60 completely closes the second air duct 50, and the airflow flow is completely distributed to the first air duct 40, so that the mode is changed from the double-air-duct mode to the single-air-duct mode, and the subsequent cleaning operation is concentrated on the suction force.

[0084] Figure 9 The flowchart of the control method of the floor cleaning machine provided by the present application is shown in Figure 9 As shown, the control method of the floor cleaning machine provided by the present application comprises:

[0085] Step S330: Determine that the working direction of the floor cleaning machine is the first direction.

[0086] Step S332: Determine that the first suction force of the first air duct 40 decreases, and the change rate of the first suction force is greater than the change rate threshold.

[0087] Step S334: Control the adjusting part 60 to move and reduce the gas flow area of the second air duct 50 to increase the flow distribution of the first air duct 40.

[0088] Specifically, when the working direction of the floor cleaning machine is the first direction, that is, when the first roller brush 20 is at the head end of the floor cleaning machine, if the first suction force of the first air duct 40 changes, the first suction force decreases and the change rate is large, the air duct may be blocked at the air inlet, and the blockage cannot be sucked in. At this time, the adjusting part 60 reduces the gas flow area of the second air duct 50, the first suction force of the first air duct 40 increases, and the suction force is concentrated, so that the blockage can be sucked in to continue the cleaning operation.

[0089] In possible embodiments, after the gas flow area of the second air duct 50 is reduced, the first suction force continues to decrease and shows no signs of recovery after a preset working time, at which time the user needs to manually clean the blockage, and an alarm information is issued. The alarm information can be in the form of a prompt sound, a prompt picture, etc., and the present application does not make specific limitations thereon.

[0090] According to the first aspect of the present application, a wind channel structure of a floor cleaning machine is provided, the floor cleaning machine comprising: a base 10, a first roller brush 20 and a second roller brush 30; the first roller brush 20 and the second roller brush 30 are respectively arranged at two ends of the moving direction of the base 10, and the base 10 is internally provided with the wind channel structure; the wind channel structure comprises: a first wind channel 40, a second wind channel 50, a third wind channel 52 and an adjusting part 60; the air inlet of the first wind channel 40 is arranged corresponding to the first roller brush 20 and is in communication with the third wind channel 52; the air inlet of the second wind channel 50 is arranged corresponding to the second roller brush 30 and is in communication with the third wind channel 52; the adjusting part 60 is arranged in the second wind channel 50 and is used for adjusting the gas flow area of the second wind channel 50.

[0091] Specifically, although the existing double-roller brush floor cleaning machine can clean the dirt in front and back at a time, the cleaning ability is reduced due to the dispersion of the suction force of the double wind channels. By arranging the adjusting part 60, the adjusting part 60 is located in the second wind channel 50 to adjust the gas flow area of the second wind channel 50, and then the suction force at the air inlets of the first wind channel 40 and the second wind channel 50 is adjusted according to the working condition, so as to ensure sufficient cleaning suction force in the double-wind-channel mode.

[0092] According to an embodiment of the present application, the adjusting part 60 comprises: a valve body 62 and a sealing part 64; the sealing part 64 is arranged at one end of the valve body 62 and is located in the interior of the second wind channel 50; wherein the sealing part 64 can move in the second wind channel 50 under the action of the valve body 62, and is used for adjusting the gas flow area of the second wind channel 50.

[0093] Specifically, the adjusting part 60 is composed of the valve body 62 and the sealing part 64, the sealing part 64 is arranged at one end of the valve body 62 close to the second wind channel 50 and is located in the interior of the second wind channel 50, the valve body 62 can move along the extension direction to drive the sealing part 64 to move, and the gas flow area of the second wind channel 50 is adjusted.

[0094] In a possible implementation, further comprising: a connecting pipe, the valve body 62 is connected with the second wind channel 50 through the connecting pipe, and the connecting pipe is V-shaped, one end of the valve body 62 where the sealing part 64 is arranged is arranged near the bending part of the connecting pipe, so as to facilitate the blocking of the airflow.

[0095] According to an embodiment of the present application, the sealing part 64 comprises: a sealing rod 65 and a sealing plate 66; one end of the sealing rod 65 is connected with the valve body 62, and the other end of the sealing rod 65 is connected with the sealing plate 66; the sealing plate 66 and at least part of the sealing rod 65 are arranged in the second wind channel 50; wherein when the second wind channel 50 is closed, the sealing plate 66 abuts against the inner wall of the second wind channel 50 to adjust the gas flow area of the second wind channel 50.

[0096] Specifically, the sealing member 64 is composed of a sealing rod 65 and a sealing plate 66, the sealing plate 66 and the sealing rod 65 are connected, and are arranged at one end close to the second air duct 50. After the airflow enters the second air duct 50, the airflow blows on one side surface of the sealing plate 66. When the valve body 62 drives the sealing member 64 to move, the sealing plate 66 abuts against the inner wall of the second air duct 50, and the second air duct 50 is completely closed.

[0097] According to an embodiment of the present application, the airflow transverse flow area in the second air duct 50 gradually decreases along the flow direction of the airflow; wherein the diameter of the second air duct 50 close to the valve body 62 is adapted to the diameter of the sealing plate 66.

[0098] Specifically, the inner diameter of the second air duct 50 is not completely the same along the flow direction of the airflow, but gradually decreases along the flow direction of the airflow. When the valve body 62 drives the sealing plate 66 to move, the sealing plate 66 abuts against the inner wall of the second air duct 50 due to the decrease of the airflow transverse flow area, and the second air duct 50 is closed.

[0099] According to an embodiment of the present application, the sealing plate 66 is a sealing structure made of silica gel material.

[0100] According to the second aspect of the present application, a scrubber is provided, which comprises the air duct structure described above.

[0101] According to an embodiment of the present application, the scrubber comprises a base 10, a first rolling brush 20, a second rolling brush 30, a first sensor and a second sensor. The first rolling brush 20 and the second rolling brush 30 are symmetrically arranged on opposite sides of the base 10. The first sensor is arranged on the bottom of the base 10 close to one side of the first rolling brush 20, and is used to detect the dirt degree in the collection area. The second sensor is arranged on the bottom of the base 10 close to one side of the second rolling brush 30, and is used to detect the dirt degree in the collection area.

[0102] The air duct structure of the scrubber, the scrubber and the control method of the scrubber provided by the present application can adjust the gas flow area of the second air duct through the adjustment part arranged in the second air duct, and then adjust the suction force at the air inlet of the first air duct and the second air duct according to the working condition, so as to ensure sufficient cleaning suction force in the double air duct mode.

[0103] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "aspects", "specific aspects", or "some aspects" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or aspect are contained in at least one embodiment or aspect of the embodiments of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or aspect. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or more embodiments or aspects. In addition, different embodiments or aspects described in the specification and the features of different embodiments or aspects can be combined and combined by those skilled in the art without contradiction, and should be covered in the scope of the claims of the present application.

[0104] Finally, it should be noted that: the above embodiments are only used to illustrate the present application, and not to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A duct structure for a floor scrubber, characterized in that, The floor scrubber includes: a base (10), a first roller brush (20), and a second roller brush (30); The first roller brush (20) and the second roller brush (30) are respectively disposed at both ends of the moving direction of the base (10), and the base (10) is provided with an air duct structure inside; The air duct structure includes: a first air duct (40), a second air duct (50), a third air duct (52), and an adjustment section (60); The air inlet of the first air duct (40) is provided corresponding to the first roller brush (20) and is connected to the third air duct (52); The air inlet of the second air duct (50) is provided corresponding to the second roller brush (30) and is connected to the third air duct (52); The adjustment unit (60) is disposed in the second air duct (50) and is used to adjust the gas flow area of ​​the second air duct (50); The regulating part (60) includes: a valve body (62) and a seal (64); The sealing element (64) is disposed at one end of the valve body (62), and the sealing element (64) is located inside the second air duct (50); The sealing element (64) can move within the second air duct (50) under the action of the valve body (62) to adjust the gas flow area of ​​the second air duct (50); It also includes a connecting pipe, the valve body (62) is connected to the second air duct (50) through the connecting pipe, and the connecting pipe is V-shaped. One end of the valve body (62) is provided with the sealing element (64) and is located near the bend of the connecting pipe to facilitate the blocking of airflow.

2. The air duct structure of the floor scrubber according to claim 1, characterized in that, The sealing element (64) includes: a sealing rod (65) and a sealing plate (66); One end of the sealing rod (65) is connected to the valve body (62), and the other end of the sealing rod (65) is connected to the sealing plate (66); The sealing plate (66) and at least a portion of the sealing rod (65) are disposed within the second air duct (50); When the second air duct (50) is closed, the sealing plate (66) abuts against the inner wall of the second air duct (50) to adjust the gas flow area of ​​the second air duct (50).

3. The air duct structure of the floor scrubber according to claim 2, characterized in that, The lateral flow area of ​​the airflow in the second air duct (50) gradually decreases along the flow direction of the airflow; The diameter of the end of the second air duct (50) near the valve body (62) is matched with the diameter of the sealing plate (66).

4. The air duct structure of the floor scrubber according to claim 2 or 3, characterized in that, The sealing plate (66) is a sealing structure made of silicone material.

5. A floor scrubbing machine, characterized in that, Includes the air duct structure described in any one of claims 1 to 4 above.

6. The floor scrubber according to claim 5, characterized in that, include: Base (10), first roller brush (20), second roller brush (30), first sensor and second sensor; The first roller brush (20) and the second roller brush (30) are symmetrically arranged on opposite sides of the base (10); The first sensor is located on the bottom of the base (10) near the first roller brush (20) and is used to detect the degree of dirt in the collection area; The second sensor is located on the bottom of the base (10) near the side of the second roller brush (30) and is used to detect the degree of dirt in the collection area.

7. A control method for a floor scrubber as described in claim 5 or 6, characterized in that, include: Obtain parameter information of the floor scrubber within the collection area; A duct control strategy is generated based on the parameter information; The gas flow area of ​​the air duct structure is adjusted according to the air duct control strategy.

8. The control method for a floor scrubber according to claim 7, characterized in that, The step of adjusting the gas flow area of ​​the duct structure according to the duct control strategy specifically includes: The degree of dirtiness in the collection area is determined based on the parameter information; Obtain the working direction of the floor scrubber; If the working direction is determined to be the first direction and the degree of dirtiness is greater than or equal to the degree of dirtiness threshold, the control adjustment unit (60) is controlled to reduce the gas flow area of ​​the second air duct (50); If the working direction is determined to be the second direction and the degree of dirtiness is greater than or equal to the degree of dirtiness threshold, the control adjustment unit (60) increases the gas flow area of ​​the second air duct (50) and increases the total suction power of the floor scrubber; Wherein, the first direction is the direction in which the first roller brush (20) runs, which is the direction of the head end; The second direction is the direction in which the second roller brush (30) runs, which is the direction of the head end.

9. The control method for a floor scrubber according to claim 7, characterized in that, The step of adjusting the gas flow area of ​​the duct structure according to the duct control strategy specifically includes: After a preset cleaning time, the cleanliness level of the cleaning area is obtained from other sensors within the Internet of Things. If the cleanliness level is determined to be below the cleanliness level threshold, the adjustment unit (60) is controlled to move to completely close the second air duct (50).

10. The control method for a floor scrubber according to claim 7, characterized in that, The step of adjusting the gas flow area of ​​the duct structure according to the duct control strategy specifically includes: The working direction of the floor scrubber is defined as the first direction; It is determined that the first suction force of the first air duct (40) decreases and the rate of change of the first suction force is greater than the rate of change threshold; The adjustment unit (60) is moved to reduce the gas flow area of ​​the second air duct (50) in order to increase the flow distribution of the first air duct (40); Wherein, the first direction is the direction in which the first roller brush (20) runs, which is the direction of the head end; The parameter information includes: the first suction force of the first air duct (40), the second suction force of the second air duct (50), and the degree of dirt in the collection area.

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