Floor brush and cleaning device

Abstract

The floor brush and cleaning device provided by the present invention include: a roller brush assembly; a power piece connected to the roller brush assembly and suitable for driving the roller brush assembly to rotate; a bracket assembly, on which the power piece and the roller brush assembly are provided, suitable for moving forward along a first preset direction or moving backward against the first preset direction under the action of an external force; an air duct assembly, including a first air inlet and a second air inlet, which are respectively arranged on the front and rear sides of the roller brush assembly along the first preset direction; a baffle assembly, including a first baffle and a second baffle, the first baffle being movably connected to the first air inlet, and the second baffle being movably connected to the second air inlet, when the bracket assembly moves forward along the first preset direction, the first baffle is suitable for moving away from and opening the first air inlet, and the second baffle is suitable for blocking the second air inlet, and when the bracket assembly moves backward against the first preset direction, the first baffle is suitable for blocking the first air inlet, and the second baffle is suitable for moving away from and opening the second air inlet.

Description

Technical Field

[0001] The present invention relates to the technical field of household cleaning, in particular to a floor brush and a cleaning device. Background Art

[0002] Nowadays, vacuum cleaners that combine suction and mopping are equipped with a floor brush that can mop the floor. This brush typically consists of a roller brush assembly, a power unit, a bracket, an air intake duct, and other components. The power unit rotates the roller brush assembly to clean the floor, and when wetted with water, the roller brush assembly can perform a mopping function, enhancing its cleaning ability.

[0003] In addition, the floor brush is usually equipped with only one air inlet duct, which is located in front of the floor brush in the direction of movement, and the roller brush assembly is located on the rear side of the air inlet duct. This allows the vacuuming function to be performed first and then the mopping function to be performed, avoiding direct contact between the roller brush and a large amount of dust, which may lead to the problem of incomplete cleaning of the floor. However, when the floor brush is dragged backward, it becomes mopping first and then vacuuming, which will cause the roller brush to get dirty quickly, and the residual dirty water after mopping is easily sucked into the dust cup of the vacuum cleaner.

[0004] In the prior art, some vacuum cleaner floor brushes adopt a dual-duct structure, with the air intake ducts respectively arranged on the front and rear sides of the roller brush assembly. The two ducts intake air at the same time, thus avoiding the problem of the roller brush getting dirty quickly and sewage entering the dust cup caused by air intake only on the front side. However, if the two ducts are opened at the same time, the suction force at the suction port of the duct will be reduced, the dust collection capacity will be reduced, and the dust collection efficiency will be reduced. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the double air duct arrangement on the floor brush in the prior art that reduces the dust collection efficiency, thereby providing a floor brush and a cleaning device.

[0006] The present invention provides a floor brush, comprising: a roller brush assembly; a power piece connected to the roller brush assembly and suitable for driving the roller brush assembly to rotate; a bracket assembly, on which the power piece and the roller brush assembly are provided, suitable for moving forward along a first preset direction or moving backward against the first preset direction under the action of an external force; an air duct assembly, comprising a first air inlet and a second air inlet, which are respectively arranged on the front and rear sides of the roller brush assembly along the first preset direction; a baffle assembly, comprising a first baffle and a second baffle, the first baffle being movably connected to the first air inlet, and the second baffle being movably connected to the second air inlet, when the bracket assembly moves forward along the first preset direction, the first baffle is suitable for moving away from and opening the first air inlet, and the second baffle is suitable for blocking the second air inlet, and when the bracket assembly moves backward against the first preset direction, the first baffle is suitable for blocking the first air inlet, and the second baffle is suitable for moving away from and opening the second air inlet.

[0007] The first baffle is hingedly connected to the second air inlet, and / or the second baffle is hingedly connected to the second air inlet.

[0008] The first baffle includes a first hinge portion and a first abutment portion, the first hinge portion is hingedly connected to a side of the first air inlet adjacent to the roller brush assembly, and the first abutment portion is connected to the first hinge portion and extends to the lower side of the bracket assembly;

[0009] The second baffle includes a second hinge portion and a second abutment portion, the second hinge portion is hingedly connected to a side of the second air inlet adjacent to the roller brush assembly, and the second abutment portion is connected to the second hinge portion and extends to the lower side of the bracket assembly;

[0010] When the bracket assembly moves forward along a first preset direction, under the action of the friction force of the external cleaning surface, the first abutment portion has a first air inlet state away from the first air inlet, and the second abutment portion has a second wind-blocking state close to the second air inlet. When the bracket assembly retreats in a direction opposite to the first preset direction, under the action of the friction force in another opposite direction of the external cleaning surface, the first abutment portion has a first wind-blocking state close to the first air inlet, and the second abutment portion has a second air inlet state away from the second air inlet.

[0011] The first baffle further includes a first switch portion, which is arranged in cooperation with the first air inlet and is connected to the first hinge portion and the first abutting portion respectively, and the first switch portion is adapted to open the first air inlet under the action of the first abutting portion in the first air inlet state, and to close the first air inlet under the action of the first abutting portion in the first wind blocking state;

[0012] The second baffle also includes a second switch portion, which is arranged in conjunction with the second air inlet and is respectively connected to the second hinge portion and the second abutment portion. The second switch portion is suitable for opening the second air inlet under the action of the second abutment portion in the second air inlet state, and closing the second air inlet under the action of the first abutment portion in the second wind blocking state.

[0013] The first abutting portion includes a first bent portion and a first extending portion, the first bent portion connecting the first extending portion and the first switch portion respectively, one end of the first extending portion is disposed on the lower side of the bracket assembly, and the other end is connected to the first bent portion, and an extension line of the first extending portion passes through the first hinge portion;

[0014] The second abutment portion includes a second bending portion and a second extension portion, the second bending portion is respectively connected to the second extension portion and the second switch portion, one end of the second extension portion is arranged on the lower side of the bracket assembly, and the other end is connected to the second bending portion, and the extension line of the second extension portion passes through the second hinge portion.

[0015] The floor brush also includes a water tank assembly, which is arranged on the upper side of the roller brush assembly and is suitable for supplying water to the roller brush assembly and cleaning the roller brush assembly.

[0016] The water tank assembly is arranged inside the air duct assembly and is integrally formed with the air duct assembly.

[0017] A wiper is provided on one side of the water tank assembly facing the roller brush assembly, and the wiper is arranged in contact with the roller brush assembly.

[0018] The bracket assembly also includes: a locking assembly, which has a working position in which it is engaged with the roller brush assembly at least under the pressure of the water tank assembly and rotates under the drive of the power member, and a disassembly position in which it is separated from the pressure of the water tank assembly under the action of external force and is away from the working position.

[0019] The floor brush further includes a joint assembly, which is arranged on the rear side of the roller brush assembly along the first preset direction and is detachably connected to the bracket assembly.

[0020] The floor brush further comprises: a plurality of caster structures, which are arranged on the bracket assembly and at least partially extend to the lower side of the bracket assembly.

[0021] The caster structure is arranged adjacent to the joint assembly.

[0022] The present invention provides a cleaning device comprising the above-mentioned floor brush.

[0023] The technical solution of the present invention has the following advantages:

[0024] 1. The floor brush according to the present invention comprises: a roller brush assembly; a power piece connected to the roller brush assembly, suitable for driving the roller brush assembly to rotate; a bracket assembly, on which the power piece and the roller brush assembly are provided, suitable for moving forward in a first preset direction or moving backward in the opposite direction to the first preset direction under the action of an external force; an air duct assembly, comprising a first air inlet and a second air inlet, which are respectively arranged on the front and rear sides of the roller brush assembly along the first preset direction; a baffle assembly, comprising a first baffle and a second baffle, the first baffle being movably connected to the first air inlet, and the second baffle being movably connected to the second air inlet, when the bracket assembly moves forward in the first preset direction, the first baffle being suitable for moving away from and opening the first air inlet, and the second baffle being suitable for blocking the second air inlet, and when the bracket assembly moves backward in the opposite direction to the first preset direction, the first baffle being suitable for blocking the first air inlet, and the second baffle being suitable for moving away from and opening the second air inlet.

[0025] By arranging air ducts with air inlets on the front and rear sides of the roller brush assembly along the direction of travel, and at the same time, at each air inlet position, two baffles are arranged which can change between blocking the air inlet and staying away from the air inlet according to the forward and backward movement of the roller brush assembly along the preset direction, and the opening and closing relationship of the two baffles are arranged in opposite directions, so that the baffles can be controlled to open in the same direction as the direction of movement and close in the opposite direction as needed when the floor brush moves forward and backward. When moving in two directions, the air inlet is set on the front side of the direction of movement of the roller brush, which can realize vacuuming first and then mopping the floor, effectively avoiding the problem of the roller brush getting dirty quickly, and can also realize that only one side of the air inlet is opened at the same time to concentrate on vacuuming, thereby improving the dust suction capacity and dust collection efficiency, and effectively overcoming the defect of double-duct suction that reduces the dust suction efficiency.

[0026] 2. The floor brush provided by the present invention, the first baffle includes a first hinge portion and a first abutment portion, the first hinge portion is hingedly connected to a side of the first air inlet adjacent to the roller brush assembly, the first abutment portion is connected to the first hinge portion and extends to the lower side of the bracket assembly; the second baffle includes a second hinge portion and a second abutment portion, the second hinge portion is hingedly connected to a side of the second air inlet adjacent to the roller brush assembly, the second abutment portion is connected to the second hinge portion and extends to the lower side of the bracket assembly; when the bracket assembly moves forward along a first preset direction, under the action of the friction force of the external cleaning surface, the first abutment portion has a first air inlet state away from the first air inlet, and the second abutment portion has a second wind-blocking state close to the second air inlet; when the bracket assembly retreats along a direction away from the first preset direction, under the action of the friction force of the external cleaning surface in another opposite direction, the first abutment portion has a first wind-blocking state close to the first air inlet, and the second abutment portion has a second air inlet state away from the second air inlet.

[0027] By respectively setting the first abutment and the second abutment to extend to the lower side of the bracket assembly and contact the cleaning surface, when the bracket assembly moves along the first preset direction under the action of an external force, the two abutment parts are subjected to the friction force from the surface to be cleaned, driving the two abutment parts to move in the same direction and providing power for their respective rotations. At the same time, the first hinge part is set on the side of the first air inlet adjacent to the roller brush assembly, and the second hinge part is set on the side of the second air inlet adjacent to the roller brush assembly. At this time, under the action of friction, the first abutment connected to the first hinge part will rotate in the direction away from the first air inlet, and the second abutment connected to the second hinge part will rotate in the direction close to the second air inlet. In addition, when the bracket assembly moves in the opposite direction along the first preset direction under the action of a reverse external force, the two abutment parts move in the opposite direction under the action of friction.

[0028] With this arrangement, the synchronous movement of the first baffle and the second baffle can be achieved through the friction between the bracket assembly and the surface to be cleaned during the movement. There is no need to set up synchronizers and driving devices, that is, the two-way single-pass of the dual air ducts corresponding to the direction of travel can be achieved, which effectively reduces the cost of the device. At the same time, the solution is simple and easy, and the air duct can be switched by dragging the floor brush back and forth. The operation is simple and convenient, so that the negative pressure at the air inlet of the floor brush is maintained at the highest, and the suction force at the air inlet is maximized, which effectively improves the dust collection effect.

[0029] 3. The floor brush provided by the present invention has a water tank assembly arranged inside the air duct assembly and integrally formed with the air duct assembly.

[0030] The integrated setting of the water tank and the air duct reduces the assembly and disassembly steps of the floor brush during the disassembly and assembly process, improves the user's disassembly and assembly efficiency, and also facilitates the cleaning of the inner roller brush assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 An exploded view of the structure of a floor brush provided in an embodiment of the present invention;

[0033] Figure 2 for Figure 1 A side view schematic diagram of the floor brush shown when it moves backward in a direction opposite to the first preset direction;

[0034] Figure 3 for Figure 2 Schematic diagram of the internal structure of the floor brush shown;

[0035] Figure 4 for Figure 2 A bottom-up schematic diagram of the floor brush shown;

[0036] Figure 5 for Figure 1 A side view schematic diagram of the floor brush shown when it moves toward a first preset direction;

[0037] Figure 6 for Figure 5 Schematic diagram of the internal structure of the floor brush shown;

[0038] Figure 7 for Figure 5 A bottom-up schematic diagram of the floor brush shown;

[0039] Description of reference numerals:

[0040] 1-Roller brush assembly; 2-Water tank assembly; 21-Wiper; 3-Bracket assembly; 31-Castor structure; 4-Power member; 5-Lock assembly; 6-Connector assembly; 7-Air duct assembly; 71-First air inlet; 72-Second air inlet; 8-First baffle; 81-First hinge; 82-First abutment; 83-First switch; 9-Second baffle; 91-Second hinge; 92-Second abutment; 93-Second switch. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] like Figure 1 - Figure 7 The present embodiment provides a floor brush, comprising: a roller brush assembly 1, a power part 4, an air duct assembly 7, a bracket assembly 3 and a baffle assembly.

[0046] Specifically, the roller brush assembly 1 includes a cylindrical roller brush member with cleaning bristles, and a roller brush end cap disposed at one end of the roller brush member and movably connected to the roller brush member. A power member 4, specifically a drive motor, which may also include a speed control device or transmission device, is connected to the other end of the roller brush member to drive the roller brush member to rotate.

[0047] In this embodiment, a power member 4 is mounted on the bracket assembly 3. The bracket assembly 3 includes a base frame and a top cover. The base frame is positioned below the roller brush assembly 1 and supports the air duct assembly 7 and the roller brush assembly 1. The base frame includes a main body and a bearing hole provided in the main body. The main body is plate-shaped, with an elongated bearing hole provided in the middle. The bearing hole is arranged in a cylindrical groove-shaped edge along its length, which supports the roller brush assembly 1. The two ends extending along its length are respectively a power end and a limit end. The roller brush member is movably connected to both the power end and the limit end, and partially passes through the bearing hole and contacts the external cleaning surface. The power end is provided with the power member 4, and the limit end is provided with a locking assembly 5. The bracket assembly 3 is driven by an external force to advance in a first predetermined direction or retreat in a direction opposite to the first predetermined direction. Specifically, the external force is applied by a user to the bracket assembly 3, which can be applied by a device such as a connecting rod or a joint assembly 6. The first predetermined direction is the direction of advance of the bracket assembly 3 when the user grasps the connecting rod or the joint assembly 6 and drags the bracket assembly 3 forward.

[0048] The air duct assembly 7 includes a first air duct and a second air duct. The first air duct and the second air duct are respectively provided with a first air inlet 71 and a second air inlet 72. The first air inlet 71 and the second air inlet 72 are arranged on the front and rear sides of the roller brush assembly 1 along the direction of travel. In this embodiment, the first air inlet 71 and the second air inlet 72 are long openings, and the extension length is equal to or greater than the axial length of the roller brush. In addition, the air duct assembly 7 also includes a dust collecting chamber, which is connected to the first air duct and the second air duct respectively, and is equipped with a dust cup and an air suction fan. In this embodiment, the dust collecting chamber and the first air duct and the second air duct are arranged on the bracket assembly 3. As a convertible embodiment, the dust collecting chamber may also not be arranged on the air duct assembly 7, but may be arranged on the outside of the floor brush, and be connected to the first air duct and the second air duct through an external pipe. As a convertible embodiment, there is no excessive restriction on the number of air ducts and openings, and multiple air ducts and openings can be arranged on both sides of the roller brush assembly 1.

[0049] The baffle assembly includes a first baffle 8 and a second baffle 9. The first baffle 8 is movably connected to the first air inlet 71, and the second baffle 9 is movably connected to the second air inlet 72. When the bracket assembly 3 moves forward along the first preset direction, the first baffle 8 is suitable for moving away from and opening the first air inlet 71, and the second baffle 9 is suitable for blocking the second air inlet 72. When the bracket assembly 3 moves backward along the direction opposite to the first preset direction, the first baffle 8 is suitable for blocking the first air inlet 71, and the second baffle 9 is suitable for moving away from and opening the second air inlet 72.

[0050] By arranging air ducts with air inlets on the front and rear sides of the roller brush assembly 1 along the direction of travel, and at the same time, at each air inlet position, two baffles are arranged which can change between blocking the air inlet and staying away from the air inlet according to the forward and backward movement of the roller brush assembly 1 along the preset direction, and the opening and closing relationship of the two baffles are arranged in opposite directions, so that when the floor brush moves forward and backward, the baffles can be controlled to open in the same direction as the movement direction and close in the opposite direction as needed. When moving in two directions, the air inlet is set on the front side of the movement direction of the roller brush, which can realize vacuuming first and then mopping the floor, effectively avoiding the problem of the roller brush getting dirty quickly, and can also realize that at the same time, only one side of the air inlet is opened to concentrate on vacuuming, thereby improving the dust suction capacity and dust collection efficiency, and effectively overcoming the defect of double-duct suction that reduces the dust suction efficiency.

[0051] The first baffle 8 is hingedly connected to the second air inlet 72, while the second baffle 9 is hingedly connected to the second air inlet 72. As an alternative embodiment, the first baffle 8 and the second baffle 9 can be respectively opened and closed by sliding or folding with the first air inlet 71 and the second air inlet 72. As another alternative embodiment, the first baffle 8 is hingedly connected to the second air inlet 72, or the second baffle 9 is hingedly connected to the second air inlet 72, and the other is opened and closed by sliding or folding with the second air inlet 72.

[0052] The first baffle 8 includes a first hinge portion 81 and a first abutting portion 82. The first hinge portion 81 is hingedly connected to a side of the first air inlet 71 adjacent to the roller brush assembly 1. The first abutting portion 82 is connected to the first hinge portion 81 and extends to the lower side of the bracket assembly 3. The second baffle 9 includes a second hinge portion 91 and a second abutting portion 92. The second hinge portion 91 is hingedly connected to a side of the second air inlet 72 adjacent to the roller brush assembly 1. The second abutting portion 92 is connected to the second hinge portion 91 and extends to the lower side of the bracket assembly 3.

[0053] When the bracket assembly 3 moves forward along the first preset direction, under the action of the friction force of the external cleaning surface, the first abutment portion 82 has a first air inlet state away from the first air inlet 71, and the second abutment portion 92 has a second wind-blocking state close to the second air inlet 72. When the bracket assembly 3 retreats in the direction opposite to the first preset direction, under the action of the friction force in the other opposite direction of the external cleaning surface, the first abutment portion 82 has a first wind-blocking state close to the first air inlet 71, and the second abutment portion 92 has a second air inlet state away from the second air inlet 72.

[0054] By respectively setting the first abutment 82 and the second abutment 92 to extend to the lower side of the bracket assembly 3 and contact the cleaning surface, when the bracket assembly 3 moves along the first preset direction under the action of an external force, the two abutment parts are subjected to the friction force from the surface to be cleaned, driving the two abutment parts to move in the same direction and providing power for their respective rotations. At the same time, the first hinge part 81 is set on the side of the first air inlet 71 adjacent to the roller brush assembly 1, and the second hinge part 91 is set on the side of the second air inlet 72 adjacent to the roller brush assembly 1. At this time, under the action of friction, the first abutment 82 connected to the first hinge part 81 will rotate in the direction away from the first air inlet 71, and the second abutment 92 connected to the second hinge part 91 will rotate in the direction close to the second air inlet 72. In addition, when the bracket assembly 3 moves in the opposite direction along the first preset direction under the action of a reverse external force, the two abutment parts move in the opposite directions under the action of friction.

[0055] With this arrangement, the synchronous movement of the first baffle 8 and the second baffle 9 can be achieved through the friction between the bracket assembly 3 and the surface to be cleaned during the movement. There is no need to set up synchronizers and driving devices, that is, the two-way single-pass of the dual air ducts corresponding to the direction of travel can be achieved, which effectively reduces the cost of the device. At the same time, the solution is simple and easy, and the air duct can be switched by dragging the floor brush back and forth. The operation is simple and convenient, so that the negative pressure at the air inlet of the floor brush is maintained at the highest, and the suction force at the air inlet is maximized, which effectively improves the dust collection effect.

[0056] The first baffle 8 also includes a first switch portion 83, which is arranged in cooperation with the first air inlet 71 and is respectively connected to the first hinged portion 81 and the first abutting portion 82. The first switch portion 83 is suitable for opening the first air inlet 71 under the action of the first abutting portion 82 in the first air intake state, and closing the first air inlet 71 under the action of the first abutting portion 82 in the first wind blocking state; the second baffle 9 also includes a second switch portion 93, which is arranged in cooperation with the second air inlet 72 and is respectively connected to the second hinged portion 91 and the second abutting portion 92. The second switch portion 93 is suitable for opening the second air inlet 72 under the action of the second abutting portion 82 in the second air intake state, and closing the second air inlet 72 under the action of the first abutting portion 82 in the second wind blocking state.

[0057] The first abutting portion 82 includes a first bent portion and a first extending portion, the first bent portion connecting the first extending portion and the first switch portion 83, one end of the first extending portion is disposed on the lower side of the bracket assembly 3, the other end is connected to the first bent portion, and the extension line of the first extending portion passes through the first hinge portion 81; the second abutting portion 92 includes a second bent portion and a second extending portion, the second bent portion connecting the second extending portion and the second switch portion 93, one end of the second extending portion is disposed on the lower side of the bracket assembly 3, the other end is connected to the second bent portion, and the extension line of the second extending portion passes through the second hinge portion 91. The bent configuration of the abutting portion allows the baffles to expand in the rotational direction, and the air duct openings can be switched between the shielding and opening states during the contact between the abutting portion and the cleaning surface.

[0058] As a convertible embodiment, the floor brush further includes a first reinforcing rib, which is connected and arranged between the first switch portion 83 and the first abutting portion 82. As a convertible embodiment, the floor brush further includes a second reinforcing rib, which is connected and arranged between the second switch portion 93 and the second abutting portion 92.

[0059] The floor brush also includes a water tank assembly 2, located above the roller brush assembly 1, suitable for supplying water to and cleaning the roller brush assembly 1. The water tank assembly 2 is located inside the air duct assembly 7 and is integrally formed with the air duct assembly 7 and the upper cover. The water tank assembly 2 replaces the existing integrated water tank and cover structure, protecting the internal structure without the need for an external cover. This eliminates the need for a cover, saving costs and improving the efficiency of assembly and disassembly of the water tank assembly 2 and roller brush assembly 1.

[0060] A wiper plate 21 is provided on one side of the water tank assembly 2 facing the roller brush assembly 1. The wiper plate 21 is arranged in contact with the roller brush assembly 1 to scrape off dirt on the roller brush.

[0061] The bracket assembly 3 also includes a locking assembly 5, which has a working position in which it is engaged with the roller brush assembly 1 at least under the pressure of the water tank assembly 2 and rotates under the drive of the power part 4, and a disassembly position in which it is separated from the pressure of the water tank assembly 2 under the action of external force and is away from the working position.

[0062] By setting the water tank assembly 2 as the locking driving force of the lock assembly 5 on the bracket assembly 3, and using the gravity of the water tank assembly 2 to control the opening and closing of the lock assembly 5, it is achieved that the lock assembly 5 automatically unlocks the roller brush assembly 1 after the water tank assembly 2 is removed, and the lock assembly 5 automatically locks the roller brush assembly 1 after the water tank assembly 2 is installed, eliminating the step of manually unlocking the lock assembly 5, greatly simplifying the disassembly and assembly steps of the roller brush assembly 1 and the water tank assembly 2, so that the roller brush assembly 1 and the water tank assembly 2 can be removed from the floor brush in two steps, with fewer disassembly and assembly steps and convenient disassembly and assembly.

[0063] The floor brush further includes a joint assembly 6 , which is detachably connected to the bracket assembly 3 .

[0064] The floor brush also includes two caster structures 31, which are arranged on the bracket assembly 3 and partially extend to the lower side of the bracket assembly 3. Specifically, the caster structure 31 is arranged adjacent to the joint assembly 6 and can cooperate with the roller structure to avoid wear between the bracket structure and the surface to be cleaned.

[0065] This embodiment also provides a cleaning device, which may be a floor scrubber or a vacuum cleaner, etc., including the above-mentioned floor brush.

[0066] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A floor brush, characterized in that: include: Roller brush assembly (1); A power member (4) is connected to the roller brush assembly (1) and is suitable for driving the roller brush assembly (1) to rotate; A bracket assembly (3) on which the power member (4) and the roller brush assembly (1) are arranged, and adapted to move forward in a first preset direction or move backward in the opposite direction to the first preset direction under the action of an external force; An air duct assembly (7) comprising a first air inlet (71) and a second air inlet (72), which are respectively arranged on the front and rear sides of the roller brush assembly (1) along the first preset direction; A baffle assembly comprises a first baffle (8) and a second baffle (9), wherein the first baffle (8) is movably connected to the first air inlet (71), and the second baffle (9) is movably connected to the second air inlet (72); when the support assembly (3) moves forward along a first preset direction, the first baffle (8) is adapted to move away from and open the first air inlet (71), and the second baffle (9) is adapted to block the second air inlet (72); when the support assembly (3) moves backward along a direction opposite to the first preset direction, the first baffle (8) is adapted to block the first air inlet (71), and the second baffle (9) is adapted to move away from and open the second air inlet (72); The first baffle (8) comprises a first hinged portion (81) and a first abutting portion (82), wherein the first hinged portion (81) is hingedly connected to a side of the first air inlet (71) adjacent to the roller brush assembly (1), and the first abutting portion (82) is connected to the first hinged portion (81) and extends to the lower side of the bracket assembly (3); The second baffle (9) comprises a second hinged portion (91) and a second abutting portion (92), the second hinged portion (91) being hingedly connected to a side of the second air inlet (72) adjacent to the roller brush assembly (1), and the second abutting portion (92) being connected to the second hinged portion (91) and extending to the lower side of the bracket assembly (3); The first baffle (8) further includes a first switch portion (83), which is arranged in conjunction with the first air inlet (71) and is respectively connected to the first hinge portion (81) and the first abutting portion (82); The second baffle (9) further includes a second switch portion (93), which is arranged in conjunction with the second air inlet (72) and is respectively connected to the second hinge portion (91) and the second abutting portion (92); At the same time, only one of the first air inlet (71) and the second air inlet (72) is opened.

2. The floor brush according to claim 1, characterized in that: When the bracket assembly (3) moves forward along a first preset direction, under the action of the friction force of the external cleaning surface, the first abutting portion (82) has a first air intake state away from the first air inlet (71), and the second abutting portion (92) has a second wind shielding state close to the second air inlet (72); when the bracket assembly (3) moves backward along a direction away from the first preset direction, under the action of the friction force of the external cleaning surface in another opposite direction, the first abutting portion (82) has a first wind shielding state close to the first air inlet (71), and the second abutting portion (92) has a second air intake state away from the second air inlet (72).

3. The floor brush according to claim 2, characterized in that: The first switch portion (83) is adapted to open the first air inlet (71) under the action of the first abutting portion (82) in the first air intake state, and to close the first air inlet (71) under the action of the first abutting portion (82) in the first wind blocking state; The second switch portion (93) is suitable for opening the second air inlet (72) under the action of the second abutting portion (92) in the second air intake state, and closing the second air inlet (72) under the action of the first abutting portion (82) in the second wind blocking state.

4. The floor brush according to claim 3, characterized in that: The first abutting portion (82) includes a first bending portion and a first extending portion, the first bending portion is respectively connected to the first extending portion and the first switch portion (83), one end of the first extending portion is arranged on the lower side of the bracket assembly (3), and the other end is connected to the first bending portion, and an extension line of the first extending portion passes through the first hinge portion (81); The second abutting portion (92) includes a second bending portion and a second extending portion, the second bending portion is connected to the second extending portion and the second switch portion (93) respectively, one end of the second extending portion is arranged on the lower side of the bracket assembly (3), and the other end is connected to the second bending portion, and the extension line of the second extending portion passes through the second hinge portion (91).

5. The floor brush according to any one of claims 1 to 4, characterized in that: It also includes a water tank assembly (2), which is arranged on the upper side of the roller brush assembly (1) and is suitable for supplying water to the roller brush assembly (1) and cleaning the roller brush assembly (1).

6. The floor brush according to claim 5, characterized in that: The water tank assembly (2) is arranged inside the air duct assembly (7) and is integrally formed with the air duct assembly (7).

7. The floor brush according to claim 6, characterized in that: A wiper plate (21) is provided on one side of the water tank assembly (2) facing the roller brush assembly (1), and the wiper plate (21) is arranged in contact with the roller brush assembly (1).

8. The floor brush according to claim 6 or 7, characterized in that: The bracket assembly (3) further comprises: A locking assembly (5) having a working position in which the locking assembly (5) is engaged with the roller brush assembly (1) at least under the pressure of the water tank assembly (2) and rotates under the drive of the power member (4), and a disassembly position in which the locking assembly (5) is disengaged from the pressure of the water tank assembly (2) under the action of an external force and is away from the working position.

9. The floor brush according to claim 8, characterized in that: It also includes a joint assembly (6), which is arranged on the rear side of the roller brush assembly (1) along the first preset direction and is detachably connected to the bracket assembly (3).

10. The floor brush according to claim 9, characterized in that: Also includes: A plurality of caster structures (31) are arranged on the bracket assembly (3) and at least partially extend to the lower side of the bracket assembly (3).

11. The floor brush according to claim 10, characterized in that: The caster structure (31) is arranged adjacent to the joint assembly (6).

12. A cleaning device, characterized in that: The invention comprises the floor brush according to any one of claims 1 to 11.

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