Floor brush assembly and cleaning device

Abstract

The present application provides a floor brush assembly and a cleaning device comprising the same. The floor brush assembly comprises a floor brush body (110), a roller brush (120) configured to be arranged on the floor brush body (110), and a locking mechanism (130), wherein the locking mechanism (130) comprises a first locking member (131) and a second locking member (132), the first locking member (131) being movably arranged on the floor brush body (110) and configured to move between a first position and a second position under an external force, the second locking member (132) being movably arranged on the roller brush (120) and rotatable between a third position and a fourth position around a rotation axis under an external force, wherein the first locking member (131) has a first locking portion (1311), and the second locking member (132) has a second locking portion (1321), wherein when the roller brush (120) is arranged on the floor brush body (110), the second locking portion (1321) interlocks with the first locking portion (1311), and wherein when the first locking member (131) has moved from the first position to the second position under an external force, the second locking member (132) rotates from the third position to the fourth position under an external force, and the second locking portion (1321) disengages from the interlock with the first locking portion (1311).

Description

Technical Field

[0001] The present application relates to the technical field of cleaning equipment, in particular to a floor brush assembly and a cleaning device.Background

[0002] With the continuous development of technology and the improvement of people's living standards, new household appliances such as vacuum cleaners and floor washers are increasingly appearing in people's lives.

[0003] In related technologies, a cleaning device comprises a host and a floor brush assembly. The floor brush assembly comprises a floor brush body and a roller brush installed on the floor brush body. The roller brush is detachably connected to the floor brush body to facilitate users to replace or maintain the roller brush.

[0004] However, in related technologies, the disassembly between the roller brush and the floor brush body is inconvenient, resulting in poor user experience.Summary of the Invention

[0005] In view of the above problem, the embodiments of the present application provide a floor brush assembly and a cleaning device, which improve the convenience of disassembly between the roller brush and the floor brush body, thereby improving the user experience.

[0006] To achieve the above purpose, the embodiments of the present application provide the following technical solutions: The first aspect of the embodiments of the present application provides a floor brush assembly comprising a floor brush body, a roller brush, and a locking mechanism. The roller brush is configured to be arranged on the floor brush body. The locking mechanism comprises a first locking member and a second locking member. The first locking member is movably arranged on the floor brush body and is configured to move between a first position and a second position under an external force. The second locking member is movably arranged on the roller brush and can rotate between a third position and a fourth position around a rotation axis under an external force. The first locking member has a first locking portion, and the second locking member has a second locking portion. When the roller brush is arranged on the floor brush body, the second locking portion interlocks with the first locking portion. When the first locking member has moved from the first position to the second position under an external force, the second locking member rotates from the third position to the fourth position under an external force, and the second locking portion disengages from the interlock with the first locking portion.

[0007] In the embodiments of the present application, by arranging a locking mechanism between the floor brush body and the roller brush, wherein the locking mechanism comprises a first locking member movably arranged on the floor brush body and configured to move between the first position and the second position under an external force and the second locking member movably arranged on the roller brush and rotatable between the third position and the fourth position around the rotation axis under an external force, wherein the first locking member has the first locking portion, and the second locking member has the second locking portion, and wherein when the roller brush is arranged on the floor brush body, the second locking portion interlocks with the first locking portion, and when the first locking member has moved the first position to the second position under an external force, the second locking member rotates from the third position to the fourth position under an external force, and the second locking portion disengages from the interlock with the first locking portion, the mode of unlocking between the first locking member and the second locking member is made simple, which facilitates the disassembly between the roller brush and the floor brush body and improves the user experience.

[0008] In some embodiments, the locking mechanism further comprises a driving structure configured to provide a torsional force to the second locking member to make the second locking member rotate from the third position to the fourth position around the rotation axis.

[0009] With this arrangement, when the first locking member has moved from the first position to the second position, the driving structure drives the second locking member to automatically rotate from the third position to the fourth position, thereby further improving the convenience of the unlocking between the first locking member and the second locking member.

[0010] In some embodiments, the driving structure is an elastic torsion member, wherein one end of the elastic torsion member is connected to the second locking member, the other end of the elastic torsion member is connected to the roller brush, and the elastic torsion member drives the second locking member to rotate from the third position to the fourth position through its own elastic torsional force.

[0011] With this arrangement, the second locking member is driven to rotate by the elastic torsional force of the elastic torsion member, and the mode of unlocking is simple and low in cost.

[0012] In some embodiments, the elastic torsion member is a torsion spring.

[0013] With this arrangement, the structure is simple and the cost is low.

[0014] In some embodiments, the floor brush assembly further comprises a trigger member movably arranged on the floor brush body and connected to the first locking member, wherein the trigger member is configured to apply a force to the first locking member under an external force to make the first locking member move from the first position to the second position.

[0015] With this arrangement, the trigger member applies, for example, a pressing force to the first locking member to make the first locking member move from the first position to the second position, which improves the user's comfort during operation.

[0016] In some embodiments, the locking mechanism further comprises an elastic reset member connected between the first locking member and the floor brush body, wherein the elastic reset member is configured to drive the first locking member to move from the second position to the first position through its own elastic force.

[0017] With this arrangement, the elastic reset member drives the first locking member to move toward the trigger member through its own elastic force, thereby improving the reliability of interlock between the first locking portion and the second locking portion.

[0018] In some embodiments, the elastic reset member is a spring.

[0019] With this arrangement, the structure is simple and the cost is low.

[0020] In some embodiments, the first locking portion comprises a locking groove and a locking tab located on an inner bottom wall of the locking groove, the second locking portion comprises a locking protrusion and a locking hole located in the locking protrusion, the locking protrusion is configured to be located in the locking groove, and the locking tab is configured to be located in the locking hole.

[0021] With this arrangement, the reliability of interlock between the first locking portion and the second locking portion can be improved.

[0022] In some embodiments, the floor brush body comprises a floor brush side cover, and the first locking member is movably arranged on the floor brush side cover.

[0023] With this arrangement, a reasonable layout of space can be provided, and the space utilization rate can be improved.

[0024] In some embodiments, the roller brush has a handle, and the second locking member is movably arranged on the handle.

[0025] With this arrangement, when the roller brush is disassembled from or assembled with the floor brush body, the handle can be used for operation to improve the user's comfort during operation. By arranging the second locking member on the handle, the space utilization rate can be improved.

[0026] In some embodiments, the roller brush comprises two roller brushes symmetrically arranged on the floor brush body and the locking mechanism comprises two locking mechanisms, each of the two roller brushes being connected to the floor brush body through one of two the locking mechanisms.

[0027] With this arrangement, by providing two roller brushes, the area cleaned during a single ground cleaning can be increased, thereby improving the cleaning efficiency.

[0028] In some embodiments, the trigger member comprises a first trigger member and a second trigger member, the first trigger member corresponds to one of the two locking mechanisms, and the second trigger member corresponds to the other of the two locking mechanisms.

[0029] With this arrangement, by pressing the first trigger member and the second trigger member, the unlocking between the roller brush and the floor brush body can be realized, so as to facilitate the disassembly of the roller brush from the floor brush body.

[0030] In some embodiments, the first trigger member and the second trigger member are an integral structure.

[0031] With this arrangement, the first trigger member and the second trigger member form an integral structure, so that by pressing the trigger member, the two roller brushes can be unlocked synchronously, and the unlocking efficiency is high.

[0032] In some embodiments, at least one of the first locking member, the second locking member, and the trigger member is made of plastic.

[0033] With this arrangement, the structure is simple and the cost is low.

[0034] The second aspect of the embodiments of the present application provides a cleaning device comprising the floor brush assembly provided in the above embodiments.

[0035] The cleaning device provided in the embodiments of the present application has the same beneficial effects as the floor brush assembly provided in the above embodiments, which are not repeated here.

[0036] In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features, other technical problems that the floor brush assembly and the cleaning device provided in the embodiments of the present application can solve, other technical features comprised in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the "Detailed description of Embodiments" section.Description of the Drawings

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings required for describing the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application, and those of ordinary skill in the art can also obtain other drawings according to these drawings without creative efforts. Fig. 1 is a structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 2 is an exploded structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 3 is a cross-sectional structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 4 is a partial enlarged schematic diagram of part A in Fig. 3; Fig. 5 is a schematic diagram illustrating a state of an unlocking port between a first locking member and a second locking member in a floor brush assembly provided in an embodiment of the present application; Fig. 6 is a partial enlarged schematic diagram of part B in Fig. 5. List of the reference numerals

[0038] 100 - floor brush assembly; 110 - floor brush body; 111 - floor brush side cover; 120 - roller brush; 121 - handle; 130 - locking mechanism; 131 - first locking member; 1311 - first locking portion; 132 - second locking member; 1321 - second locking portion; 133 - driving structure; 134 - elastic reset member; 140 - trigger member. Detailed Description of the Embodiments

[0039] With the continuous development of technology and the improvement of people's living standards, new household appliances such as vacuum cleaners and floor washers are increasingly appearing in people's lives. In related technologies, a cleaning device comprises a host and a floor brush assembly. The floor brush assembly comprises a floor brush body and a roller brush installed on the floor brush body. The roller brush is detachably connected to the floor brush body to facilitate users to replace or maintain the roller brush. However, in related technologies, the disassembly between the roller brush and the floor brush body is inconvenient, resulting in poor user experience.

[0040] To solve the above problem, the embodiments of the present application provide a floor brush assembly and a cleaning device. By arranging a locking mechanism between the floor brush body and the roller brush, wherein the locking mechanism comprises a first locking member movably arranged on the floor brush body and configured to move between the first position and the second position under an external force and the second locking member movably arranged on the roller brush and rotatable between the third position and the fourth position around the rotation axis under an external force, wherein the first locking member has the first locking portion, and the second locking member has the second locking portion, and wherein when the roller brush is arranged on the floor brush body, the second locking portion interlocks with the first locking portion, and when the first locking member has moved the first position to the second position under an external force, the second locking member rotates from the third position to the fourth position under an external force, and the second locking portion disengages from the interlock with the first locking portion, the mode of unlocking between the first locking member and the second locking member is made simple, which facilitates the disassembly between the roller brush and the floor brush body and improves the user experience.

[0041] To make the above objectives, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application, without creative efforts, shall fall within the protection scope of the present application.

[0042] Fig. 1 is a structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 2 is an exploded structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 3 is a cross-sectional structural schematic diagram of a floor brush assembly provided in an embodiment of the present application; Fig. 4 is a partial enlarged schematic diagram of part A in Fig. 3; Fig. 5 is a schematic diagram illustrating a state of an unlocking port between a first locking member and a second locking member in a floor brush assembly provided in an embodiment of the present application; Fig. 6 is a partial enlarged schematic diagram of part B in Fig. 5.

[0043] With reference to Figs. 1 to 6, the embodiment of the present application provides a floor brush assembly 100 comprising: a floor brush body 110, a roller brush 120, and a locking mechanism 130. The roller brush 120 is configured to be arranged on the floor brush body 110. The locking mechanism 130 comprises a first locking member 131 and a second locking member 132. The first locking member 131 is movably arranged on the floor brush body 110 and is configured to move between a first position and a second position under an external force. The second locking member 132 is movably arranged on the roller brush 120 and can rotate between a third position and a fourth position around a rotation axis under an external force. The first locking member 131 has a first locking portion 1311, and the second locking member 132 has a second locking portion 1321. When the roller brush 120 is arranged on the floor brush body 110, the second locking portion 1321 interlocks with the first locking portion 1311. When the first locking member 131 has moved from the first position to the second position under an external force, the second locking member 132 rotates from the third position to the fourth position under an external force, and the second locking portion 1321 disengages from the interlock with the first locking portion 1311.

[0044] Exemplarily, the first locking member 131 can move between the first position and the second position in a vertical direction under an external force. The second locking member 132 defines a rotation axis extending, for example, in the vertical direction, so that the second locking member 132 can rotate between the third position and the fourth position around the rotation axis under an external force.

[0045] For example, when the first locking member 131 is in the first position and the second locking member 132 is in the third position, the first locking portion 1311 of the first locking member 131 interlocks with the second locking portion 1321 of the second locking member 132. When a vertical downward pressing force is applied to the first locking member 131, it moves from the first position to the second position in the vertical direction. When the first locking member 131 has moved to the second position, the first locking portion 1311 and the second locking portion 1321 no longer contact each other. At this time, the second locking member 132 rotates from the third position to the fourth position around the rotation axis under an external force, so that the second locking portion 1321 disengages from the interlock with the first locking portion 1311.

[0046] It can be seen that in the embodiments of the present application, by arranging the locking mechanism 130 between the floor brush body 110 and the roller brush 120, wherein the locking mechanism 130 comprises the first locking member 131 movably arranged on the floor brush body 110 and configured to move between the first position and the second position under an external force and the second locking member 132 movably arranged on the roller brush 120 and rotatable between the third position and the fourth position around the rotation axis under an external force, wherein the first locking member 131 has the first locking portion 1311, and the second locking member 132 has the second locking portion 1321, and wherein when the roller brush 120 is arranged on the floor brush body 110, the second locking portion 1321 interlocks with the first locking portion 1311, and when the first locking member 131 has moved from the first position to the second position under an external force, the second locking member 132 rotates from the third position to the fourth position under an external force, and the second locking portion 1321 disengages from the interlock with the first locking portion 1311, the mode of unlocking between the first locking member 131 and the second locking member 132 is made simple, which facilitates the disassembly between the roller brush 120 and the floor brush body 110 and improves the user experience.

[0047] In some embodiments, the first locking member 131 is movably arranged on a floor brush side cover 111. Exemplarily, a wall of the floor brush side cover 111 has a chute extending in the vertical direction, and the first locking member 131 is arranged in the chute so that it can move up and down in the chute.

[0048] By arranging the first locking member 131 on the floor brush side cover 111, the structural compactness of the floor brush assembly 100 can be improved, and the space utilization rate can be improved.

[0049] In some embodiments, with reference to Figs. 2 to 6, the first locking portion 1311 comprises a locking groove and a locking tab located on an inner bottom wall of the locking groove. The second locking portion 1321 comprises a locking protrusion and a locking hole located in the locking protrusion. The locking protrusion is configured to be located in the locking groove, and the locking tab is configured to be located in the locking hole.

[0050] In this way, when the roller brush 120 is installed on the floor brush body 110, and the first locking member 131 is in the first position and the second locking member 132 is in the third position, the locking protrusion in the second locking portion 1321 is located in the locking groove of the first locking portion 1311, and the locking protrusion abuts against the bottom wall of the locking groove to limit the degree of freedom in the vertical direction. In addition, the locking tab of the first locking portion 1311 is located in the locking hole of the second locking portion 1321, which can limit the circumferential rotation of the second locking portion 1321, thereby realizing the interlock between the first locking portion 1311 and the second locking portion 1321 and improving the reliability of the interlock between the first locking portion 1311 and the second locking portion 1321.

[0051] In some embodiments, the locking mechanism 130 further comprises a driving structure 133 configured to provide a torsional force to the second locking member 132 to make the second locking member 132 rotate from the third position to the fourth position around the rotation axis.

[0052] In other words, when the first locking member 131 has moved the first position to the second position, the first locking portion 1311 and the second locking portion 1321 disengage from each other in the vertical direction-meaning they no longer contact each other in the vertical direction. Then, the driving structure 133 drives the second locking member 132 to automatically rotate from the third position to the fourth position, that is, the second locking portion 1321 is rotated out of the locking groove. As a result, the second locking portion 1321 and the first locking portion 1311 are also circumferentially misaligned and disengaged, thereby realizing the disengagement of the interlock between them. This mode of unlocking is simple.

[0053] In some embodiments, the driving structure 133 is an elastic torsion member, one end of which is connected to the second locking member 132, and the other end is connected to the roller brush 120. The elastic torsion member drives the second locking member 132 to rotate from the third position to the fourth position through its own elastic torsional force.

[0054] It can be understood that after the first locking portion 1311 and the second locking portion 1321 are vertically disengaged, the elastic torsional force drives the second locking member 132 to rotate through its own elastic torsional force, such that the second locking portion 1321 and the first locking portion are completely disengaged from each other in the circumferential direction, thereby disengaging the interlock between the first locking portion 1311 and the second locking portion 1321. This mode of unlocking is simple and low in cost.

[0055] Exemplarily, as shown in Fig. 2, the elastic torsion member is a torsion spring, one end of which is connected to the second locking member 132, and the other end is connected to the roller brush 120. In this way, when the first locking portion 1311 has moved the first position to the second position under an external force, the elastic torsional force of the torsion spring drives the second locking member 132 to rotate from the third position to the fourth position around the rotation axis, such that the second locking portion 1321 disengages from the interlock with the first locking portion 1311.

[0056] It can be understood that driving the second locking member 132 to rotate around the rotation axis through the torsion spring has a simple structure and low cost.

[0057] In some embodiments, with reference to Fig. 4, the floor brush assembly 100 further comprises a trigger member 140 movably arranged on the floor brush body 110 and connected to the first locking member 131. The trigger member 140 is configured to apply a force to the first locking member 131 under an external force to make the first locking member 131 move from the first position to the second position.

[0058] In specific implementation, the user can apply a vertical downward pressing force to the trigger member 140 to apply a pressing force to the first locking member 131 through the trigger member 140, such that the first locking member 131 moves from the first position to the second position. Then, the torsion spring applies a torsional force to the first locking member 131 to disengage the interlock between the first locking portion 1311 and the second locking portion 1321, such that the user can directly disassemble the roller brush 120 from the floor brush body 110.

[0059] By providing the trigger member 140, the comfort of the user during unlocking operation can be improved, that is, the user can realize unlocking only by pressing the trigger member 140. This mode of unlocking is simple with convenient operations.

[0060] In addition, when the first locking portion 1311 and the second locking portion 1321 are interlocked with each other, to improve the reliability of the interlock between them, in the embodiments of the present application, with reference to Figs. 2 and 4, the locking mechanism 130 further comprises an elastic reset member 134 connected between the first locking member 131 and the floor brush body 110. The elastic reset member 134 is configured to drive the first locking member 131 to move from the second position to the first position through its own elastic force. In this way, the reliability of the interlock between the first locking portion 1311 and the second locking portion 1321 can be improved.

[0061] Exemplarily, the elastic reset member 134 is a spring. The spring comprises but is not limited to a compression spring. Thus, the elastic reset member 134 is simple in structure and low in cost.

[0062] In some embodiments, the roller brush 120 has a handle 121, and the second locking member 132 is movably arranged on the handle 121. In this way, when the roller brush 120 is disassembled from or assembled with the floor brush body 110, the handle 121 can be used for the operations, so as to improve the user's comfort during operation. By arranging the second locking member 132 on the handle 121, the space utilization rate can be improved. In addition, by arranging the second locking member 132 on the handle 121, the cleaning area of the roller brush 120 can be increased, thereby improving the cleaning efficiency.

[0063] Exemplarily, as shown in Figs. 2 to 6, the handle 121 is arranged at a side end of the roller brush 120, and the user can disassemble or assemble the roller brush 120 through the handle 121. In this way, the cleaning area of the roller brush 120 can be increased, thereby improving its cleaning efficiency, and the structural compactness of the floor brush assembly 100.

[0064] In some embodiments, the floor brush assembly 100 comprises two roller brushes 120 and two locking mechanisms 130. The two roller brushes 120 are symmetrically arranged on the floor brush body 110, each connected to the floor brush body 110 through one of the locking mechanisms 130.

[0065] In this way, by providing two roller brushes 120 symmetrically arranged on the floor brush body 110, the area cleaned in a single ground cleaning can be increased, thereby improving the cleaning efficiency. The two locking mechanisms 130 are respectively arranged between the floor brush body 110 and each roller brush 120 to make the roller brush 120 interlock with or disengage from the floor brush body 110, thereby realizing the detachable connection between the roller brush 120 and the floor brush body 110.

[0066] In some embodiments, the trigger member 140 comprises a first trigger member 140 corresponding to one of the two locking mechanisms 130 and a second trigger member 140 corresponding to the other of the two locking mechanisms 130. In this way, the first trigger member 140 is connected to one of the two locking mechanisms 130, and the second trigger member 140 is connected to the other of the two locking mechanisms 130, so that by respectively triggering the first trigger member 140 and the second trigger member 140, the corresponding roller brush 120 can be disengaged from the floor brush body 110. Thus, the two roller brushes 120 can be unlocked and disassembled separately. That is, the first trigger member 140 and the second trigger member 140 can be triggered simultaneously to unlock both roller brushes 120. Alternatively, only one of the roller brushes 120 can be unlocked. It can be adapted according to actual needs and is not limited here.

[0067] In other embodiments, with reference to Fig. 2, the first trigger member 140 and the second trigger member 140 are an integral structure, that is, one trigger member 140 can synchronously trigger two unlocking mechanisms. In this way, by applying a pressing force to the trigger member 140, the two roller brushes 120 can be unlocked synchronously, thereby improving the unlocking efficiency.

[0068] In some embodiments, at least one of the first locking member 131, the second locking member 132, and the trigger member 140 is made of plastic. Exemplarily, the first locking member 131, the second locking member 132, and the trigger member 140 are all made of plastic, so that they can all be formed by injection molding, with simple process and low cost.

[0069] The second aspect of the embodiments of the present application provides a cleaning device comprising the floor brush assembly provided in the above embodiments. The cleaning device is, for example, a cleaning robot, etc.

[0070] In some embodiments, the cleaning device further comprises a host connected to the floor brush assembly. For the structure of the host, please refer to related technologies and it will not be elaborated here.

[0071] In addition, the structure of the floor brush assembly has been described in detail in the above embodiments, and will not be repeated here.

[0072] In the floor brush assembly and the cleaning device provided in the embodiments of the present application, by arranging a locking mechanism between the floor brush body and the roller brush, wherein the locking mechanism comprises a first locking member movably arranged on the floor brush body and configured to move between the first position and the second position under an external force and the second locking member movably arranged on the roller brush and rotatable between the third position and the fourth position around the rotation axis under an external force, wherein the first locking member has the first locking portion, and the second locking member has the second locking portion, and wherein when the roller brush is arranged on the floor brush body, the second locking portion interlocks with the first locking portion, and when the first locking member has moved the first position to the second position under an external force, the second locking member rotates from the third position to the fourth position under an external force, and the second locking portion disengages from the interlock with the first locking portion, the mode of unlocking between the first locking member and the second locking member is made simple, which facilitates the disassembly between the roller brush and the floor brush body and improves the user experience.

[0073] The various embodiments or modes of realization in this specification are described in a progressive manner, and for each embodiment, we focus on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0074] In the description of this specification, descriptions with reference to the terms "one mode of realization," "some modes of realization," " illustrative modes of realization," "examples," "specific examples," or "some examples" and the like mean that specific features, structures, materials, or characteristics described in conjunction with the mode of realization or example are comprised in at least one mode of realization or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same mode of realization or example. Moreover, the described specific features, structures, materials, or characteristics can be combined in any suitable manner in any one or more modes of realization or examples.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A floor brush assembly characterized in that it comprises a floor brush body (110), a roller brush (120) configured to be arranged on the floor brush body (110), and a locking mechanism (130), wherein the locking mechanism (130) comprises a first locking member (131) and a second locking member (132), the first locking member (131) being movably arranged on the floor brush body (110) and configured to move between a first position and a second position under an external force, the second locking member (132) being movably arranged on the roller brush (120) and rotatable between a third position and a fourth position around a rotation axis under an external force, wherein the first locking member (131) has a first locking portion (1311), and the second locking member (132) has a second locking portion (1321), wherein when the roller brush (120) is arranged on the floor brush body (110), the second locking portion (1321) interlocks with the first locking portion (1311), and wherein when the first locking member (131) has moved from the first position to the second position under an external force, the second locking member (132) rotates from the third position to the fourth position under an external force, and the second locking portion (1321) disengages from the interlock with the first locking portion (1311).

2. The floor brush assembly according to claim 1, wherein the locking mechanism (130) further comprises a driving structure (133) configured to provide a torsional force to the second locking member (132) to make the second locking member (132) rotate from the third position to the fourth position around the rotation axis.

3. The floor brush assembly according to claim 2, wherein the driving structure (133) is an elastic torsion member, one end of the elastic torsion member being connected to the second locking member (132), and the other end of the elastic torsion member being connected to the roller brush (120), and in that the elastic torsion member drives the second locking member (132) to rotate from the third position to the fourth position through its own elastic torsional force.

4. The floor brush assembly according to claim 3, wherein the elastic torsion member is a torsion spring.

5. The floor brush assembly according to any one of claims 1-4, further comprising a trigger member (140) movably arranged on the floor brush body (110) and connected to the first locking member (131), wherein the trigger member (140) is configured to apply a force to the first locking member (131) under an external force to make the first locking member (131) move from the first position to the second position.

6. The floor brush assembly according to any one of claims 1-5, wherein the locking mechanism (130) further comprises an elastic reset member connected between the first locking member (131) and the floor brush body (110), and configured to drive the first locking member (131) to move from the second position to the first position through its own elastic force.

7. The floor brush assembly according to claim 6, wherein the elastic reset member is a spring.

8. The floor brush assembly according to any one of claims 1-7, wherein the first locking portion (1311) comprises a locking groove and a locking tab located on an inner bottom wall of the locking groove, the second locking portion (1321) comprises a locking protrusion and a locking hole located in the locking protrusion, and the locking protrusion is configured to be located in the locking groove, and the locking tab is configured to be located in the locking hole.

9. The floor brush assembly according to any one of claims 1-8, wherein the floor brush body (110) comprises a floor brush side cover (111), and the first locking member (131) is movably arranged on the floor brush side cover (111).

10. The floor brush assembly according to any one of claims 1-9, wherein the roller brush (120) has a handle (121), and the second locking member (132) is movably arranged on the handle (121).

11. The floor brush assembly according to any one of claims 1-10, wherein the roller brush (120) comprises two roller brushes (120) symmetrically arranged on the floor brush body (110) and the locking mechanism (130) comprises two locking mechanisms (130), wherein each of the two roller brushes (120) is connected to the floor brush body (110) through one of two the locking mechanisms (130).

12. The floor brush assembly according to claim 11, wherein the trigger member (140) comprises a first trigger member (140) and a second trigger member (140), wherein the first trigger member (140) corresponds to one of the two locking mechanisms (130), and the second trigger member (140) corresponds to the other of the two locking mechanisms (130).

13. The floor brush assembly according to claim 12, wherein the first trigger member (140) and the second trigger member (140) are an integral structure.

14. The floor brush assembly according to claim 5, wherein at least one of the first locking member (131), the second locking member (132), and the trigger member (140) is made of plastic.

15. A cleaning device characterized in that it comprises the floor brush assembly according to any one of claims 1-14.

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