Floor brush structure for cleaning machine and cleaning machine

Abstract

The invention relates to a floor brush structure used for a cleaning machine and the cleaning machine, the floor brush structure used for the cleaning machine comprises a shell, a first rolling brush, a second rolling brush and an air guide channel, the air guide channel is arranged on the shell, located between the first rolling brush and the second rolling brush and extends in the left-right direction, and the first rolling brush and the second rolling brush are arranged in the shell. The bottom of the air guide channel is provided with a dirt suction opening extending in the length direction of the air guide channel, and the air guide channel is provided with an air outlet channel. The part, located in the first opening, of the first brush piece and the part, located in the second opening, of the second brush piece are both in the state of rotating towards the dirt suction opening. The cleaning capacity is improved, the amount of residual water on the ground after cleaning is reduced, the cleaning effect is better, and the requirements of users can be better met.

Description

Technical Field

[0001] The invention belongs to the technical field of household washing and cleaning, and in particular relates to a floor brush structure for a cleaning machine and the cleaning machine. Background Art

[0002] Currently, the cleaning machine is a floor scrubber, a vacuum cleaner or a sweeper, and the cleaning machine sucks a mixture of dust mixed with water vapor on the ground into its storage chamber.

[0003] Existing cleaning machines such as the Chinese utility model patent "A roller brush rod and cleaning mechanism and sweeper", whose patent number is ZL202123250101.9 (authorization announcement number is CN216932986U) discloses a roller brush rod, including a first roller brush rod and a second roller brush rod, there is a gap between the first roller brush rod and the second roller brush rod, the first roller brush rod and the second roller brush rod both adopt a spiral structure, when the roller brush rod rotates, the garbage attached to the roller brush rod can be transferred from both sides to the middle gap. The above patent adopts the form of a roller brush, which is difficult to pick up wet hair. Although a scraper bar is set on the back side of the roller brush, hair, sand and gravel often adhere to the scraper bar, resulting in poor scraping effect of the scraper bar.

[0004] Therefore, it is necessary to further improve the existing floor brush structure used in cleaning machines. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a floor brush structure for a cleaning machine with improved cleaning ability in view of the current status of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide a floor brush structure that can reliably clean large-sized garbage.

[0007] The third technical problem to be solved by the present invention is to provide a cleaning machine that can accurately detect large-sized garbage to achieve the purpose of accurate cleaning.

[0008] The fourth technical problem to be solved by the present invention is to provide a cleaning machine having the above cleaning structure.

[0009] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a floor brush structure for a cleaning machine, with the moving direction of the cleaning machine as the front, comprising:

[0010] A housing having a first chamber extending in a left-right direction, wherein the bottom of the first chamber has a first opening extending in a length direction thereof;

[0011] The first roller brush includes a first roller shaft extending in the left-right direction and rotatably disposed in the first chamber and a first brush member disposed on the outer peripheral wall of the first roller shaft, wherein a portion of the first brush member is located below the first opening;

[0012] The invention is characterized in that the interior of the housing has a second chamber extending along the length direction of the first chamber behind the first chamber, the bottom of the second chamber has a second opening extending in the length direction thereof, and the floor brush structure further comprises:

[0013] The second roller brush includes a second roller shaft extending in the left-right direction and rotatably disposed in the second chamber, and a second brush member disposed on the outer peripheral wall of the second roller shaft, wherein the second roller shaft rotates in the opposite direction to the first roller shaft, and a part of the second brush member is located below the second opening;

[0014] An air guide channel is provided in the shell, and is located between the first roller brush and the second roller brush and extends in the left-right direction. The bottom of the air guide channel has a sewage suction port extending along its length direction, and the air guide channel has an air outlet channel. When the first roller brush and the second roller brush are both in a rotating state, the part of the first brush member located at the first opening and the part of the second brush member located at the second opening are both in a state of rotating toward the sewage suction port.

[0015] After the first roller brush and the second roller brush sweep the garbage on the ground into the sewage suction port, in order to quickly discharge the garbage through the air guide channel, the cross section of the air guide channel gradually decreases from bottom to top, thereby accelerating the flow speed of the fluid.

[0016] In order to better guide the garbage into the air outlet channel, the front wall plate of the air guide channel is gradually tilted forward from top to bottom, and the rear wall plate of the air guide channel is gradually tilted backward from top to bottom. In this way, the fluid entering the air guide channel is guided so that it can be discharged from the air outlet channel more smoothly.

[0017] Preferably, the cross-sections of the first chamber and the second chamber are both arc-shaped, the front wall plate of the air guiding channel is a part of the wall plate of the first chamber, and the rear wall plate of the air guiding channel is the first part of the wall plate of the second chamber.

[0018] Preferably, a scraper bar is further included at the rear edge of the second opening, the scraper bar extends in the left-right direction, and the left end of the scraper bar is located on the left side of the left edge of the second opening, and the right end of the scraper bar is located on the right side of the right edge of the second opening. In this way, when the cleaning machine turns, the turning radius of the scraper bar covers the residual water on the rear side of the roller brush, and then it is sucked along the air guide channel, so that less residual water is left on the ground after cleaning, thereby improving the cleaning ability.

[0019] The air outlet channel may be located on the rear wall plate or the front wall plate of the air guiding channel, or may be located on the top thereof, but preferably, the air outlet channel is located on the top of the air guiding channel.

[0020] In order to scrape the scraper strip, the outer edge of the second brush member contacts the front surface of the scraper strip, thus ensuring that the scraper strip is in a clean state in real time and avoiding residual water stains on the cleaned floor.

[0021] Preferably, the air guide channel is provided with an air passing section located above the air outlet channel and connected to the air outlet channel, the air passing section is located between the first roller brush and the second roller brush and is arranged vertically, and along the fluid flow path, the air passing section is located downstream of the air outlet channel.

[0022] The amount of residual water after cleaning the floor is further reduced, and the outer diameter of the first roller brush is greater than the outer diameter of the second roller brush.

[0023] In order to gather and collect hair from the left and right ends to the middle, the first brush member includes a first brush bar and a second brush bar which are arranged in sequence along the axial direction of the first roller and are both arranged in a spiral shape. The first brush bar and the second brush bar have opposite rotation directions, and a gap is left between them. The gap is arranged opposite to the air outlet channel.

[0024] The first brush strip and the second brush strip can be directly formed on the outer peripheral wall of the roller shaft, and can also be set on the roller shaft through a roller brush sleeve, but preferably, the first brush member also includes a first roller brush sleeve and a second roller brush sleeve which are sleeved on the outer periphery of the first roller shaft and arranged in sequence along the axial direction of the first roller shaft, the first roller brush sleeve and the second roller brush sleeve both extend along the length direction of the first roller shaft, and a gap is left between the two, the gap is the first brush strip is set on the outer peripheral wall of the first roller brush sleeve, and the second brush strip is set on the outer peripheral wall of the second roller brush sleeve.

[0025] The second brush member is V-shaped, and can guide the garbage at the left and right ends to the corners. The second brush member is a V-shaped brush strip extending along the axial direction of the second roller and in a V shape. The corner of the V-shaped brush strip is arranged opposite to the air outlet channel. In this way, the garbage at the corner is directly discharged through the air outlet channel.

[0026] In order to increase the flow speed of garbage, the left and right side walls of the air outlet channel are guide walls that gradually tilt toward each other from bottom to top.

[0027] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a notch is opened in the front wall plate of the air guide channel at a position corresponding to the air outlet channel, and a movable plate is installed at the notch and is arranged to move backward or forward relative to the front wall plate and then open or close the notch accordingly.

[0028] One way to realize the movement of the movable plate: the movable plate is a deformable elastic plate. In this way, when large-sized garbage (such as particles or agglomerated hair) accumulates, the elastic plate is squeezed and deformed, the gap is in an open state, and the large-sized garbage enters the sewage suction port through the gap. After the large-sized garbage passes through, the elastic plate automatically returns to the initial position and closes the gap.

[0029] Preferably, the movable plate is rotatably disposed on the front wall plate of the air guide passage, and the rotation axis extends along the left-right direction.

[0030] The second method of realizing the movement of the movable plate is: it also includes a driving mechanism for driving the movable plate to rotate forward and backward, and the power output end of the driving mechanism is connected to the movable plate.

[0031] Preferably, the driving mechanism comprises a motor and a transmission assembly, the power output end of the motor is drivingly connected to the power input end of the transmission assembly, and the power output end of the transmission assembly is drivingly connected to the movable plate.

[0032] There are many structural forms of the transmission assembly, which can adopt the form of a driving gear, a driven gear, a lifting rod and a connecting rod. The driving gear is installed on the output shaft of the motor, and the driven gear is installed on the lifting rod and meshes with the driving gear. However, preferably, the transmission assembly includes a rocker rod, a lifting rod and a connecting rod. The motor and the rocker rod are both located above the first chamber corresponding to the shell, and the motor has an output shaft extending along the left and right directions. The lifting rod is located behind the output shaft and is arranged vertically. The first end of the rocker rod is installed on the output shaft, and the rocker rod is provided with a guide groove extending along its length direction. The upper end of the lifting rod has a guide member that cooperates with the guide groove, and the lower end of the lifting rod is located in the air guide channel, the front end of the connecting rod is connected to the rear wall surface of the movable plate, and the rear end of the connecting rod is rotatably connected to the lower end of the lifting rod.

[0033] In order to guide the up and down movement of the lifting rod, the shell is provided with a vertical channel extending vertically, the lifting rod is inserted into the vertical channel, and the upper end of the lifting rod is located above the vertical channel.

[0034] The technical solution adopted by the present invention to solve the above-mentioned third technical problem is: a cleaning machine, including a body and a floor brush structure, the body having an installation space for the floor brush structure to be installed therein, the bottom of the installation space having an avoidance opening, the avoidance opening being located at the periphery of the bottom circumference of the shell, characterized in that the floor brush structure is the floor brush structure described in any one of claims 1 to 4, a sensor for sensing the size of garbage is arranged on the front wall of the body, the signal input end of the sensor is electrically connected to the controller, the signal output end of the controller is electrically connected to the motor, and is configured to: control the motor to drive the operating condition of the movable plate after receiving the signal collected by the sensor.

[0035] The technical solution adopted by the present invention to solve the fourth technical problem mentioned above is: a cleaning machine, comprising a floor brush structure, a fan and a separation structure for separating at least dust and air, characterized in that: the floor brush structure is the floor brush structure described in any one of claims 1 to 4, along the fluid flow path, the floor brush structure, the separation structure and the fan are arranged in sequence, and the air inlet of the separation structure is connected to the air guide channel.

[0036] The cleaning machine may be a sweeping machine or a scrubber, but preferably, the cleaning machine is a sweeping machine.

[0037] Compared with the prior art, the advantages of the present invention are: in the floor brush structure, an elongated air guide channel is arranged between the first roller brush and the second roller brush, so as to improve the suction force. During the movement of the cleaning machine, the first roller brush and the second roller brush both sweep the garbage at the corresponding position to the sewage suction port of the air guide channel, that is, the first roller brush sweeps and peels off the long hair, particles (such as sand and gravel) and dust on the ground backwards, and the dust is sucked into the sewage suction port at the rear side, while the second roller brush sweeps and peels off the ground cleaned by the first roller brush forwards, that is, the water stains, small particles and hair segments remaining on the ground cleaned by the first roller brush are swept forwards into the sewage suction port, and the second roller brush rotates in real time to scrape the ground, so as to improve the cleaning ability and reduce the amount of residual water on the ground after cleaning, so as to achieve better cleaning effect and better meet the needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a partial structural schematic diagram of a sweeping machine according to Embodiment 1 of the present invention;

[0039] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0040] Figure 3 for Figure 1 Structural diagram of the middle floor brush structure;

[0041] Figure 4 for Figure 3A cross-sectional view of

[0042] Figure 5 for Figure 3 A cross-sectional view from another angle;

[0043] Figure 6 This is a schematic diagram of the structure of the notch in the closed state in this embodiment 2;

[0044] Figure 7 for Figure 6 A cross-sectional view of

[0045] Figure 8 This is a schematic diagram of the structure of Example 2 when the notch is in an open state;

[0046] Fig. 9 for Figure 8 sectional view of . DETAILED DESCRIPTION

[0047] The present invention is further described in detail below with reference to the accompanying drawings.

[0048] Embodiment 1:

[0049] like Figures 1 to 5 Shown is the first preferred embodiment of the present invention.

[0050] like Figure 1 and Figure 2 As shown, the cleaning machine of this embodiment is a sweeping machine. The following takes the direction of travel of the sweeping machine as the front. The sweeping machine includes a body 8, a floor brush structure, a fan and a separation structure for separating at least dust and air. Among them, the body 8 has an installation space for installing the floor brush structure therein, and the bottom of the installation space has a avoidance opening 811, and the avoidance opening 811 is located on the periphery of the bottom edge of the shell 1. The above-mentioned fan and separation structure are both arranged on the body 8, and the floor brush structure, the separation structure and the fan are arranged in sequence along the fluid flow path. The above-mentioned separation structure adopts the structure in the prior art, and will not be described in detail in this embodiment.

[0051] like Figures 3 to 5 As shown, the floor brush structure of this embodiment includes a housing 1, a first roller brush 2, a second roller brush 3, an air guide channel 4 and a scraper strip 5. The housing 1 has a first chamber 10 extending in the left-right direction and a second chamber 11 located behind the first chamber 10. The bottom of the first chamber 10 has a first opening 101 extending along its length direction.

[0052] The air guide channel 4 is provided in the housing 1, and is located between the first roller brush 2 and the second roller brush 3 and extends in the left-right direction. The bottom of the air guide channel 4 has a sewage suction port 40 extending along its length direction, and the top of the air guide channel 4 has an air outlet channel 43. The air inlet of the above-mentioned separation structure is fluidly connected with the air outlet channel 43 of the air guide channel 4. In this embodiment, the cross-section of the air guide channel 4 gradually decreases from bottom to top, and the front wall plate 41 of the air guide channel 4 gradually tilts forward from top to bottom, and the rear wall plate 42 of the air guide channel 4 gradually tilts backward from top to bottom. In addition, the air guide channel 4 is provided with an air flow section 44 located above the air outlet channel 43 and connected to the air outlet channel 43. The air flow section 44 is located between the first roller brush 2 and the second roller brush 3, and is arranged vertically. Along the fluid flow path, the air flow section 44 is located downstream of the air outlet channel 43. In this embodiment, the cross-sections of the first chamber 10 and the second chamber 11 are both arc-shaped, the front wall plate 41 of the air guide channel 4 is a part of the wall plate of the first chamber 10, and the rear wall plate 42 of the air guide channel 4 is the first part of the wall plate of the second chamber 11. In addition, in order to allow the fluid to be discharged more smoothly, the left and right side walls of the air outlet channel 43 are guide walls 431 that gradually tilt toward each other from bottom to top.

[0053] The first roller brush 2 includes a first roller shaft 21 extending in the left-right direction and rotatably arranged in the first chamber 10, and a first brush member 2a arranged on the outer peripheral wall of the first roller shaft 21, and the first brush member 2a is partially located below the first opening 101. In this embodiment, the first brush member 2a includes a first brush strip 221 and a second brush strip 231 arranged in sequence along the axial direction of the first roller shaft 21 and both arranged in a spiral shape, the first brush strip 221 and the second brush strip 231 have opposite rotation directions, and a gap 24 is left between the two, and the gap 24 is arranged opposite to the air outlet channel 43. Specifically, the first brush member 2a also includes a first roller brush cover 22 and a second roller brush cover 23 which are sleeved on the outer periphery of the first roller shaft 21 and arranged in sequence along the axial direction of the first roller shaft 21, the first roller brush cover 22 and the second roller brush cover 23 both extend along the length direction of the first roller shaft 21, and a gap is left between the two, and the gap is the above-mentioned gap 24. The first brush strip 221 is arranged on the outer peripheral wall of the first roller brush cover 22, and the second brush strip 231 is arranged on the outer peripheral wall of the second roller brush cover 23. In order to cut the hair collected in the gap, a cutting part located in the gap is usually arranged in the chamber, and the hair in the gap is cut by the cutting part.

[0054] The second chamber 11 extends along the length direction of the first chamber 10, and the bottom of the second chamber 11 has a second opening 111 extending in the length direction thereof. The outer diameter of the second roller brush 3 is smaller than the outer diameter of the first roller brush 2. In the present embodiment, the second roller brush 3 includes a second roller shaft 31 extending along the left-right direction and rotatably arranged in the second chamber 11, and a second brush member arranged on the outer peripheral wall of the second roller shaft 31. The second roller shaft 31 rotates in the opposite direction to the first roller shaft 21, and the second brush member is partially located below the second opening 111. In the present embodiment, the second brush member is a V-shaped brush strip 32 extending along the axial direction of the second roller shaft 31 and in a V shape, and the corner 321 of the V-shaped brush strip 32 is arranged opposite to the air outlet channel 43. In the present embodiment, there are multiple V-shaped brush strips 32, which are arranged at intervals along the circumference of the second roller shaft 31, and the corners of all V-shaped brush strips 32 face the same rotation direction. The scraper strip 5 is located at the rear edge of the second opening 111, and the scraper strip 5 extends in the left-right direction. In this embodiment, the scraper strip 5 is installed at the rear edge of the bottom opening of the installation space. The left end of the scraper strip 5 is located on the left side of the left edge of the second opening 111, and the right end of the scraper strip 5 is located on the right side of the right edge of the second opening 111. In addition, the outer edge of the V-shaped brush strip 32 contacts the front wall of the scraper strip 5, so that during the rotation of the second roller brush 3, the V-shaped brush strip 32 scrapes the scraper strip 5 to ensure that the scraper strip 5 is clean in real time.

[0055] When the first roller brush 2 and the second roller brush 3 are both in a rotating state, the portion of the first brush member 2a located at the first opening 101 and the portion of the second brush member located at the second opening 111 are both in a state of rotating toward the sewage suction port 40, that is, the first roller brush 2 and the second roller brush 3 both sweep the garbage on the ground into the sewage suction port. For details on the direction of fluid movement, see Figure 4 The arrow in the middle indicates the way. Figure 4 As shown, the first roller brush 2 rotates counterclockwise, while the second roller brush 3 rotates clockwise. In this way, the first roller brush 2 sweeps and peels off the long hair, particles (such as sand and gravel) and dust on the ground backward, and the peeled garbage is sucked into the sewage suction port 40 located at the rear side, while the second roller brush 3 sweeps and peels off the ground cleaned by the first roller brush 2 forward, that is, the water stains, small particles and hair segments remaining on the ground cleaned by the first roller brush 2 are peeled forward, and the peeled garbage enters the sewage suction port 40. The second roller brush rotates in real time to scrape the ground, thereby improving the cleaning ability, reducing the amount of residual water on the ground after cleaning, and achieving a better cleaning effect, which can better meet the needs of users.

[0056] In order to discharge large particles and garbage in time, the front wall plate 41 of the air guide channel 4 is provided with a notch 411 at a position corresponding to the air outlet channel 43, and a movable plate 6 is installed at the notch 411, which is arranged to move backward relative to the front wall plate 41 to open the notch 411, and to move forward to close the notch 411. In this embodiment, the movable plate 6 is an elastic plate that can be deformed.

[0057] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "left", "right", "side", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as illustrations and should not be regarded as limitations.

[0058] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

[0059] Embodiment 2:

[0060] like Figures 6 to 9 Shown is the second preferred embodiment of the present invention.

[0061] The difference between this embodiment and the above-mentioned embodiment 1 is that the method of realizing the movement of the movable panel 6 is different. Specifically, the movable panel 6 is rotatably arranged on the front wall plate 41 of the air guide channel 4, and the rotation axis extends along the left-right direction. In this embodiment, the above-mentioned movable panel 6 moves forward and backward under the drive of the driving mechanism 7, and the power output end of the above-mentioned driving mechanism 7 is drivingly connected to the movable panel 6. Specifically, the above-mentioned driving mechanism 7 includes a motor 71 and a transmission assembly 72, the power output end of the motor 71 is drivingly connected to the power input end of the transmission assembly 72, and the power output end of the transmission assembly 72 is drivingly connected to the movable panel 6. In this embodiment, the transmission assembly 72 includes a rocker arm 721, a lifting rod 722 and a connecting rod 723. The motor 71 and the rocker arm 721 are both located above the first chamber 10 corresponding to the shell 1, and the motor 71 has an output shaft extending in the left-right direction. The lifting rod 722 is located behind the output shaft and is arranged vertically. The first end of the rocker arm 721 is installed on the output shaft. The rocker arm 721 is provided with a guide groove 7211 extending along its length direction. The upper end of the lifting rod 722 has a guide member 7221 that cooperates with the guide groove 7211 for guiding, and the lower end of the lifting rod 722 is located in the air guide channel 4. The front end of the connecting rod 723 is connected to the rear wall surface of the movable plate 6, and the rear end of the connecting rod 723 is rotatably connected to the lower end of the lifting rod 722.

[0062] In order to guide the movement of the lifting rod 722 , the housing 1 is provided with a vertical channel 13 extending vertically. The lifting rod 722 is inserted into the vertical channel 13 , and the upper end of the lifting rod 722 is located above the vertical channel 13 .

[0063] In addition, a sensor 82 for sensing the size of the garbage is provided on the front wall of the body 8. The signal input end of the sensor 82 is electrically connected to the controller, and the signal output end of the controller is electrically connected to the motor 71, and is configured to control the motor 71 to drive the operating condition of the movable plate 6 after receiving the signal collected by the sensor 82. When the sensor 82 detects larger particles (such as particles with a size greater than a preset value), it transmits a signal to the controller, and the controller controls the motor to work, and at this time, the transmission is transmitted through the transmission assembly to drive the movable plate 6 to rotate backward. In this embodiment, there are two sensors 82, and they are arranged at intervals along the left and right directions.

[0064] like Fig. 9 As shown, when the movable plate 6 opens the gap 411 under the drive of the above-mentioned driving mechanism 7, the corresponding position above the sewage suction port 40 is blocked. Since the area of ​​the air guide channel around the movable plate 6 is suddenly reduced, the suction force is increased, and the garbage collected in the gap of the first roller brush is directly and quickly sucked away; when the movable plate closes the gap 411, the residual water amount is reduced, and a good water absorption effect is achieved.

Claims

1. A floor brush structure for a cleaning machine, with the moving direction of the cleaning machine as the front, comprising: A housing (1) having a first chamber (10) extending in a left-right direction, wherein the bottom of the first chamber (10) has a first opening (101) extending in a length direction thereof; The first roller brush (2) comprises a first roller shaft (21) extending in the left-right direction and rotatably arranged in the first chamber (10), and a first brush member (2a) arranged on the outer peripheral wall of the first roller shaft (21), wherein a part of the first brush member (2a) is located below the first opening (101); It is characterized in that The housing (1) has a second chamber (11) extending along the length direction of the first chamber (10) at the rear of the first chamber (10), and the bottom of the second chamber (11) has a second opening (111) extending in the length direction thereof. The floor brush structure further comprises: The second roller brush (3) comprises a second roller shaft (31) extending in the left-right direction and rotatably arranged in the second chamber (11), and a second brush member arranged on the outer peripheral wall of the second roller shaft (31), wherein the second roller shaft (31) rotates in the opposite direction to the first roller shaft (21), and a part of the second brush member is located below the second opening (111); An air guide channel (4) is provided in the housing (1) and is located between the first roller brush (2) and the second roller brush (3) and extends in the left-right direction. The bottom of the air guide channel (4) has a sewage suction port (40) extending in the length direction thereof, and the air guide channel (4) has an air outlet channel (43). When the first roller brush (2) and the second roller brush (3) are both in a rotating state, a portion of the first brush member (2a) located at the first opening (101) and a portion of the second brush member located at the second opening (111) are both in a state of rotating toward the sewage suction port (40).

2. The floor brush structure according to claim 1, characterized in that: The cross section of the air guiding channel (4) gradually decreases from bottom to top.

3. The floor brush structure according to claim 1, characterized in that: The front wall plate (41) of the air guide channel (4) is gradually inclined forward from top to bottom, and the rear wall plate (42) of the air guide channel (4) is gradually inclined backward from top to bottom.

4. The floor brush structure according to claim 3, characterized in that: The cross-sections of the first chamber (10) and the second chamber (11) are both arc-shaped; the front wall plate (41) of the air guide channel (4) is a part of the wall plate of the first chamber (10); and the rear wall plate (42) of the air guide channel (4) is a first part of the wall plate of the second chamber (11).

5. The floor brush structure according to claim 1, characterized in that: It also includes a scraper strip (5) located at the rear edge of the second opening (111), the scraper strip (5) extending in the left-right direction, and the left end of the scraper strip (5) is located on the left side of the left edge of the second opening (111), and the right end of the scraper strip (5) is located on the right side of the right edge of the second opening (111).

6. The floor brush structure according to claim 5, characterized in that: The outer edge of the second brush member is in contact with the front surface of the scraper strip (5).

7. The floor brush structure according to claim 1, characterized in that: The air outlet channel (43) is located at the top of the air guide channel (4).

8. The floor brush structure according to claim 7, characterized in that: The air guide channel (4) is provided with an air flow section (44) located above the air outlet channel (43) and connected to the air outlet channel (43); the air flow section (44) is located between the first roller brush (2) and the second roller brush (3) and is arranged vertically; along the fluid flow path, the air flow section (44) is located downstream of the air outlet channel (43).

9. The floor brush structure according to claim 1, characterized in that: The outer diameter of the first roller brush (2) is greater than the outer diameter of the second roller brush (3).

10. The floor brush structure according to claim 1, characterized in that: The first brush member (2a) comprises a first brush strip (221) and a second brush strip (231) which are sequentially arranged along the axial direction of the first roller shaft (21) and are both arranged in a spiral shape; the first brush strip (221) and the second brush strip (231) have opposite rotation directions, and a gap (24) is left between the two; the gap (24) is arranged opposite to the air outlet channel (43).

11. The floor brush structure according to claim 10, characterized in that: The first brush member (2a) further comprises a first roller brush sleeve (22) and a second roller brush sleeve (23) which are sleeved on the periphery of the first roller shaft (21) and arranged in sequence along the axial direction of the first roller shaft (21); the first roller brush sleeve (22) and the second roller brush sleeve (23) both extend along the length direction of the first roller shaft (21) and there is a gap between them, the gap being the gap (24); the first brush strip (221) is arranged on the outer peripheral wall of the first roller brush sleeve (22), and the second brush strip (231) is arranged on the outer peripheral wall of the second roller brush sleeve (23).

12. The floor brush structure according to claim 10, characterized in that: The second brush member is a V-shaped brush strip (32) extending along the axial direction of the second roller shaft (31) and in a V shape, and a corner (321) of the V-shaped brush strip (32) is arranged opposite to the air outlet channel (43).

13. The floor brush structure according to claim 1, characterized in that: The left and right side walls of the air outlet channel (43) are guide walls (431) that gradually incline toward each other from bottom to top.

14. The floor brush structure according to any one of claims 1 to 13, characterized in that: The front wall plate (41) of the air guide channel (4) is provided with a notch (411) at a position corresponding to the air outlet channel (43), and a movable plate (6) is installed at the notch (411) and is arranged to move backward or forward relative to the front wall plate (41) and to open or close the notch (411) accordingly.

15. The floor brush structure according to claim 14, characterized in that: The movable plate (6) is an elastic plate that can be deformed.

16. The floor brush structure according to claim 14, characterized in that: The movable plate (6) is rotatably arranged on the front wall plate (41) of the air guide channel (4), and the rotation axis extends along the left-right direction.

17. The floor brush structure according to claim 16, characterized in that: It also includes a driving mechanism (7) for driving the movable plate (6) to rotate forward and backward, and a power output end of the driving mechanism (7) is drivingly connected to the movable plate (6).

18. The floor brush structure according to claim 17, characterized in that: The driving mechanism (7) comprises a motor (71) and a transmission assembly (72); the power output end of the motor (71) is drivingly connected to the power input end of the transmission assembly (72); and the power output end of the transmission assembly (72) is drivingly connected to the movable plate (6).

19. The floor brush structure according to claim 18, characterized in that: The transmission assembly (72) comprises a rocker rod (721), a lifting rod (722) and a connecting rod (723); the motor (71) and the rocker rod (721) are both located above the first chamber (10) corresponding to the housing (1); the motor (71) has an output shaft extending in the left-right direction; the lifting rod (722) is located behind the output shaft and is arranged vertically; the first end of the rocker rod (721) is mounted on the output shaft; the rocker rod (721) is (721) is provided with a guide groove (7211) extending along its length direction, the upper end of the lifting rod (722) has a guide member (7221) which is matched with the guide groove (7211), and the lower end of the lifting rod (722) is located in the air guide channel (4), the front end of the connecting rod (723) is connected to the rear wall surface of the movable plate (6), and the rear end of the connecting rod (723) is rotatably connected to the lower end of the lifting rod (722).

20. The floor brush structure according to claim 19, characterized in that: The shell (1) is provided with a vertical channel (13) extending vertically, the lifting rod (722) is inserted into the vertical channel (13), and the upper end of the lifting rod (722) is located above the vertical channel (13).

21. A cleaning machine, comprising a body (8) and a floor brush structure, wherein the body (8) has an installation space for installing the floor brush structure therein, the bottom of the installation space has an escape opening (811), and the escape opening (811) is located at the periphery of the bottom edge of the housing (1), characterized in that: The floor brush structure is the floor brush structure described in any one of claims 18 to 20, and a sensor (82) for sensing the size of garbage is arranged on the front wall surface of the body (8), and the signal input end of the sensor (82) is electrically connected to the controller, and the signal output end of the controller is electrically connected to the motor (71), and is configured to: after receiving the signal collected by the sensor (82), control the motor (71) to drive the operating condition of the movable plate (6).

22. A cleaning machine comprising a floor brush structure, a fan and a separation structure for separating at least dust and air, characterized in that: The floor brush structure is the floor brush structure described in any one of claims 1 to 20, and the floor brush structure, separation structure and fan are arranged in sequence along the fluid flow path, and the air inlet of the separation structure is connected to the air guide channel (4).

23. The cleaning machine according to claim 22, characterized in that: The cleaning machine is a sweeping machine.

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