Rolling brush assembly, floor brush assembly and cleaning equipment

Abstract

The utility model relates to the technical field of cleaning, and discloses a rolling brush assembly, a floor brush assembly and cleaning equipment. The at least one first side cover is arranged on at least one side of the rolling brush, one end of the first side cover is rotationally connected with the rolling brush, the other end of the first side cover is provided with a containing cavity, the other end of the first side cover is provided with an operation space, one side of the operation space communicates with the containing cavity, and the other side of the operation space communicates with the outside; the lock catch is arranged in the containing cavity and comprises a spring bolt, the spring bolt and the limiting structure are correspondingly arranged, and the lock catch is used for moving relative to the containing cavity under the action of external force, so that the spring bolt has a fixed state of being connected with the limiting structure and an unlocked state of being separated from the limiting structure, disassembly of the rolling brush assembly and the floor brush assembly is guaranteed, and the rolling brush assembly is convenient to disassemble and assemble; the structure is simple, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, in particular to a roller brush assembly, a floor brush assembly and a cleaning device. Background Art

[0002] Cleaning devices, such as floor scrubbers, are cleaning machines suitable for cleaning hard floors while sucking up sewage and taking the sewage away from the site, and have the advantages of environmental protection, energy saving and high efficiency. Floor scrubbers are respectively semi-automatic floor scrubbers, fully automatic floor scrubbers, push-type floor scrubbers and ride-on floor scrubbers. The key component of a floor scrubber is the floor brush assembly, which includes a floor brush housing and a roller brush assembly. The roller brush assembly is fixed on the floor brush housing. The roller brush assembly includes a roller brush. During use, the roller brush rotates forward and backward to clean the floor.

[0003] In the prior art, the roller brush assembly is usually fixed to the floor brush housing through a lock. The lock can generally be divided into a rotary lock and a sliding lock. The rotary lock requires the removal of the upper cover of the roller brush before the roller brush can be removed, which occupies a large space and is not convenient for disassembly and assembly; in order to achieve three-point fixation to form stability, the sliding lock usually needs to be provided with two independent and movable small locks inside, with a relatively complex structure and high manufacturing cost. Therefore, there is an urgent need for a roller brush assembly with convenient disassembly and a simple structure to improve the user experience. Summary of the Utility Model

[0004] In view of this, the utility model provides a roller brush assembly, a floor brush assembly and a cleaning device to solve the problems of inconvenient disassembly and assembly and complex structure of the existing roller brush assembly.

[0005] In a first aspect, the utility model provides a roller brush assembly for assembling with a floor brush assembly. The floor brush assembly is provided with a limiting structure. The roller brush assembly includes:

[0006] A roller brush;

[0007] At least one first side cover is arranged on at least one side of the roller brush. One end of the first side cover is rotatably connected to the roller brush, and the other end has a receiving cavity. An operating space is provided at the other end of the first side cover. One side of the operating space is communicated with the receiving cavity, and the other side is communicated with the outside;

[0008] A lock is arranged in the receiving cavity. The lock includes a lock tongue. The lock tongue is correspondingly arranged with the limiting structure. The lock is used to move relative to the receiving cavity under an external force, so that the lock tongue has a fixed state of being connected to the limiting structure and an unlocked state of being separated from the limiting structure.

[0009] Beneficial effects: By providing a limiting structure on the floor brush assembly, corresponding to the locking tongue of the lock catch, and providing an operating space on the first side cover, when the operator applies an external force to the lock catch through the operating space, the lock catch can move relative to the accommodating cavity, so that the locking tongue has a fixed state of being connected to the limiting structure to ensure the fixed connection between the roller brush assembly and the floor brush assembly, and an unlocking state in which the locking tongue is separated from the limiting structure to ensure the disassembly of the roller brush assembly and the floor brush assembly, making the disassembly and assembly of the roller brush assembly convenient, with a simple structure and improving the user experience.

[0010] In an optional embodiment, an operating portion is provided on the lock catch, the operating portion is used for external force operation, and the operating portion is correspondingly provided with the operating space.

[0011] Beneficial effects: By providing an operating portion on the lock catch, it is convenient to apply an external force to the lock catch to drive the lock catch to move.

[0012] In an optional embodiment, at least a part of the projection of the operating portion is located within the operating space, and along the moving direction of the lock catch, the size of the operating space is larger than the size of the operating portion corresponding to the projection;

[0013] And / or, the operating portion is a buckle groove.

[0014] Beneficial effects: By making at least a part of the projection of the operating portion located within the provided operating space, it is more convenient for the user to operate externally, and along the moving direction of the lock catch, the size of the operating space is larger than the size of the operating portion corresponding to the projection, so that the operating space does not affect the movement of the lock catch and the structure is more compact.

[0015] In an optional embodiment, the lock catch includes at least three locking tongues, and the at least three locking tongues are coplanar and jointly form a triangle.

[0016] Beneficial effects: By setting the lock catch to include at least three locking tongues, the locking tongues are coplanar and jointly form a triangle, which can improve the assembly stability and prevent the first side cover from deflecting during the operation of the roller brush assembly, affecting normal use.

[0017] In an optional embodiment, there are three locking tongues, which respectively include:

[0018] The first locking tongue is provided at one end of the operating portion away from the roller brush, and the first locking tongue is located in the moving direction of the lock catch;

[0019] The second locking tongue is provided on one side of the operating portion;

[0020] The third locking tongue is provided on the other side of the operating portion, and the second locking tongue and the third locking tongue are staggered.

[0021] In an alternative embodiment, the latch includes an elastic member, one end of the elastic member is fixedly connected to the other end of the operating portion, and the other end is fixedly connected to the accommodation cavity;

[0022] Under the action of an external force, the locking tongue has the unlocked state, and under the elastic force of the elastic member, the locking tongue has the fixed state.

[0023] Beneficial effects: By providing an elastic member on the latch, the elastic force of the elastic member can be relied on to automatically fix the locking tongue in a connected state with the limiting structure of the floor brush assembly, without the need for manual operation by the user. While the structure is simple, the user experience is improved.

[0024] In an alternative embodiment, the roller brush assembly includes a second side cover, and the second side cover is fixedly connected to the other end of the first side cover;

[0025] The first side cover and the second side cover are respectively provided with accommodation spaces, and the accommodation spaces on the first side cover and the second side cover together define the accommodation cavity.

[0026] Beneficial effects: By providing a second side cover on the roller brush assembly, the accommodation spaces on the second side cover and the first side cover together define the accommodation cavity, which is convenient for assembling the latch in the accommodation cavity. For example, during assembly, the latch can be first assembled in the accommodation space of the first side cover, and then the second side cover is assembled and connected to the first side cover.

[0027] In an alternative embodiment, one end of the first side cover corresponding to the second side cover is snap-connected.

[0028] Beneficial effects: By snap-connecting one end of the first side cover corresponding to the second side cover, it is convenient to assemble and connect the first side cover and the second side cover.

[0029] In an alternative embodiment, a card slot is provided on the first side cover, and a snap projection cooperating with the card slot is provided on the second side cover.

[0030] In an alternative embodiment, the card slot and the snap projection are respectively provided at least along two different directions.

[0031] Beneficial effects: By extending the card slot and the snap projection respectively at least along two different directions, the movement of the second side cover in at least two directions can be restricted, improving the assembly stability.

[0032] In an alternative embodiment, avoidance spaces are respectively provided on the first side cover and the second side cover corresponding to the locking tongue.

[0033] Beneficial effects: By respectively providing avoidance spaces at positions corresponding to the lock tongues on the first side cover and the second side cover, it is convenient for the lock tongues to move along with the lock catches in the accommodation cavity without interference.

[0034] In an optional implementation manner, the other ends of the first side cover and the second side cover corresponding to each other are connected by screws.

[0035] Beneficial effects: By connecting the other ends of the first side cover and the second side cover corresponding to each other by screws, the assembly stability can be further improved.

[0036] Second aspect, the present utility model further provides a floor brush assembly, including:

[0037] A floor brush housing, on which the limiting structure is provided;

[0038] The above-mentioned roller brush assembly, and the roller brush assembly is assembled with the floor brush housing.

[0039] Beneficial effects: Since the floor brush assembly includes the above-mentioned roller brush assembly, it has the same effects as the above-mentioned roller brush assembly, which will not be elaborated here.

[0040] In an optional implementation manner, the limiting structure is a limiting groove.

[0041] Beneficial effects: By setting the limiting structure as a limiting groove, it is convenient to insert the lock tongue into the limiting groove to achieve the fixed state, and when the lock tongue is disengaged from the limiting groove, the unlocking state is achieved, and the structure is relatively simple.

[0042] Third aspect, the present utility model further provides a cleaning device, including:

[0043] The above-mentioned floor brush assembly.

[0044] Beneficial effects: Since the cleaning device includes the above-mentioned floor brush assembly, it has the same effects as the above-mentioned floor brush assembly, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation manners of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific implementation manners or the prior art. Obviously, the drawings in the following description are some implementation manners of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0046] Figure 1 It is a side view of a roller brush assembly according to an embodiment of the present utility model;

[0047] Figure 2 For Figure 1Partial exploded view of the roller brush assembly shown;

[0048] Figure 3 Schematic structural diagram of the lock buckle assembled on the first side cover;

[0049] Figure 4 For Figure 3 Partial cross-sectional view of;

[0050] Figure 5 Schematic structural diagram of the first side cover;

[0051] Figure 6 Schematic structural diagram of the lock buckle;

[0052] Figure 7 Schematic structural diagram of the second side cover;

[0053] Figure 8 Side view of the floor brush assembly;

[0054] Figure 9 Schematic structural diagram of the floor brush housing and the roller brush assembly;

[0055] Figure 10 Schematic structural diagram of the lock buckle assembled on the floor brush housing;

[0056] Figure 11 Partial cross-sectional view of the floor brush assembly.

[0057] Explanation of reference numerals:

[0058] 1. Roller brush;

[0059] 2. First side cover; 201. Operating space; 202. Card slot; 203. Fixed screw post;

[0060] 3. Lock buckle; 301. Elastic member; 302. Operating part; 303. First locking tongue; 304. Second locking tongue; 305. Third locking tongue;

[0061] 4. Second side cover; 401. Clamping projection; 402. Fixed screw hole;

[0062] 5. Upper shell;

[0063] 6. Lower shell; 601. Limiting structure;

[0064] 7. Avoidance space. Detailed implementation manners

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0066] The following will describe the embodiments of the present utility model in conjunction with Figures 1 to 11 , to describe the embodiments of the present utility model.

[0067] According to an embodiment of the present utility model, on the one hand, a roller brush assembly is provided for assembling with a floor brush assembly. A limiting structure 601 is provided on the floor brush assembly. The roller brush assembly includes:

[0068] A roller brush 1;

[0069] At least one first side cover 2 is provided on at least one side of the roller brush 1. One end of the first side cover 2 is rotatably connected to the roller brush 1, and the other end has a receiving cavity. An operation space 201 is provided at the other end of the first side cover 2. One side of the operation space 201 communicates with the receiving cavity, and the other side communicates with the outside;

[0070] A lock 3 is provided in the receiving cavity. The lock 3 includes a locking tongue, and the locking tongue is correspondingly arranged with the limiting structure 601. The lock 3 is used to move relative to the receiving cavity under an external force, so that the locking tongue has a fixed state of being connected to the limiting structure 601 and an unlocking state of being separated from the limiting structure 601.

[0071] By providing the limiting structure 601 on the floor brush assembly and correspondingly arranging it with the locking tongue of the lock 3, and providing the operation space 201 on the first side cover 2, when the operator applies an external force to the lock 3 through the operation space 201, the lock 3 can move relative to the receiving cavity, so that the locking tongue has a fixed state of being connected to the limiting structure 601 to ensure the fixed connection between the roller brush assembly and the floor brush assembly, and an unlocking state of being separated from the limiting structure 601 to ensure the disassembly of the roller brush assembly and the floor brush assembly, making the disassembly and assembly of the roller brush assembly convenient, with a simple structure and improving the user experience.

[0072] In this embodiment, two first side covers 2 are provided, respectively arranged on opposite sides of the roller brush 1. As an alternative embodiment, it is also possible to provide one first side cover 2, arranged on one side of the roller brush 1.

[0073] The operation space 201 in this embodiment is an operation through hole.

[0074] Such as Figure 6As shown, an operation part 302 is provided on the buckle 3 in this embodiment. The operation part 302 is used for external force operation and is correspondingly arranged with the operation space 201. Specifically, the operation part 302 is a buckle groove. By providing the operation part 302 on the buckle 3, it is convenient for an external force to act on the buckle 3 to drive the buckle 3 to move. As a transformable implementation manner, it may also be that no separate operation part 302 is provided on the buckle 3, but when the user touches the buckle 3, it can drive the buckle 3 to move.

[0075] In this embodiment, the projection of at least part of the structure of the operation part 302 is within the operation space 201, and along the moving direction of the buckle 3, the size of the operation space 201 is larger than the size of the operation part 302 corresponding to the projection. Specifically, as Figure 1 and Figure 4 shown, the projection of part of the structure of the operation part 302 is arranged within the operation space 201. By arranging the projection of at least part of the structure of the operation part 302 within the operation space 201, it is more convenient for the user to operate externally, and along the moving direction of the buckle 3, the size of the operation space 201 is larger than the size of the operation part 302 corresponding to the projection, so that the operation space 201 does not affect the movement of the buckle 3 and the structure is more compact. As a transformable implementation manner, it may also be that the projections of all the structures of the operation part 302 are within the operation space 201 as long as the accommodation cavity does not affect the movement of the buckle 3.

[0076] The buckle 3 in this embodiment includes at least three locking tongues, and the at least three locking tongues are coplanar and jointly form a triangle. By setting the buckle 3 to include at least three locking tongues, the locking tongues are coplanar and jointly form a triangle, which can improve the assembly stability and prevent the first side cover 2 from deflecting during the operation of the roller brush assembly, affecting normal use. As a transformable implementation manner, it may also be that the buckle 3 includes one locking tongue or two locking tongues.

[0077] Specifically, as Figure 6 shown, there are three locking tongues in this embodiment, which respectively include: a first locking tongue 303, arranged at one end of the operation part 302 away from the roller brush 1, and the first locking tongue 303 is located in the moving direction of the buckle 3; a second locking tongue 304, arranged on one side of the operation part 302; a third locking tongue 305, arranged on the other side of the operation part 302, and the second locking tongue 304 and the third locking tongue 305 are arranged staggeredly. As a transformable implementation manner, it may also be that more locking tongues are provided, and the more locking tongues jointly form a triangle. As a transformable implementation manner, it may also be that the second locking tongue 304 and the third locking tongue 305 are arranged oppositely.

[0078] The latch 3 in this embodiment includes an elastic member 301. One end of the elastic member 301 is fixedly connected to the other end of the operating portion 302, and the other end is fixedly connected to the accommodation cavity. When under an external force, the lock tongue has an unlocked state, and under the elastic force of the elastic member 301, the lock tongue has a fixed state. Specifically, the elastic member 301 is a spring. By providing the elastic member 301 on the latch 3, it is possible to rely on the elastic force of the elastic member 301 to automatically fix the lock tongue in a connected state with the limiting structure 601 of the floor brush assembly without the need for the user to manually operate, which simplifies the structure and improves the user experience. As an alternative embodiment, it is also possible not to provide the elastic member 301, but for the user to manually operate to move the latch 3 in the first direction to connect the lock tongue of the latch 3 with the limiting structure 601 of the floor brush assembly to achieve a fixed state, and manually operate to move the latch 3 in the second direction to disconnect the lock tongue of the latch 3 from the limiting structure 601 of the floor brush assembly to achieve an unlocked state, where the second direction is opposite to the first direction.

[0079] To facilitate fixing the elastic member 301, fixing protrusions are respectively provided at the other end of the operating portion 302 and in the accommodation cavity, and both ends of the elastic member 301 are respectively fixedly connected to the fixing protrusions. As an alternative embodiment, it is also possible that no fixing protrusions are provided at the other end of the operating portion 302 and in the accommodation cavity, and both ends of the elastic member 301 are respectively fixedly connected to the other end of the operating portion 302 and in the accommodation cavity; or fixing protrusions are provided only on one of the other end of the operating portion 302 and the accommodation cavity, one end of the elastic member 301 is fixedly connected to the fixing protrusion, and the other end is fixedly connected to the other end of the operating portion 302 or in the accommodation cavity.

[0080] As Figure 2 shown, the roller brush assembly in this embodiment includes a second side cover 4, and the second side cover 4 is fixedly connected to the other end of the first side cover 2; accommodation spaces are respectively provided on the first side cover 2 and the second side cover 4, and the accommodation spaces on the first side cover 2 and the second side cover 4 together form an accommodation cavity. By providing the second side cover 4 on the roller brush assembly, the accommodation cavity is formed jointly by the second side cover 4 and the accommodation space on the first side cover 2, which facilitates assembling the latch 3 in the accommodation cavity. For example, during assembly, the latch 3 can be first assembled in the accommodation space of the first side cover 2, and then the second side cover 4 is assembled and connected to the first side cover 2. As an alternative embodiment, it is also possible not to provide the second side cover 4, but only to assemble the latch 3 in the accommodation space of the first side cover 2.

[0081] The front end of the first side cover 2 is rotatably connected to the roller brush 1, and the lock latch 3 and the second side cover 4 are provided at the rear end. Here, the front end refers to Figure 1 the left side, and the rear end refers to Figure 1 the right side.

[0082] In order to facilitate the assembly and connection of the first side cover 2 and the second side cover 4, one end of the first side cover 2 corresponding to the second side cover 4 is snap-connected in this embodiment.

[0083] Specifically, a clamping groove 202 is provided on the first side cover 2, and a clamping projection 401 that cooperates with the clamping groove 202 for snap connection is provided on the second side cover 4. As an alternative embodiment, it is also possible that a clamping projection is provided on the first side cover 2, and a clamping groove that cooperates with the clamping projection for snap connection is provided on the second side cover 4.

[0084] In this embodiment, the clamping groove 202 and the clamping projection 401 are respectively arranged along at least two different directions. By extending the clamping groove 202 and the clamping projection 401 along at least two different directions respectively, the movement of the second side cover 4 in at least two directions can be restricted, improving the assembly stability.

[0085] Specifically, as Figure 5 and Figure 7 shown, the clamping groove 202 includes a vertical part and a horizontal part. The horizontal part is a horizontal section, and the vertical part is an arc section. The arc section is connected between the two horizontal sections. There are two clamping projections 401 arranged oppositely. The two clamping projections 401 are respectively located on two opposite horizontal edges of the second side cover 4. During assembly, the second side cover 4 is pushed from the end of the first side cover 2 provided with the clamping groove 202 to the other end, so that the clamping projection 401 is inserted into the clamping groove 202, and the snap connection between the first side cover 2 and the second side cover 4 can be realized, which can restrict the movement of the second side cover 4 in the up-down direction and the left-right direction.

[0086] Since the lock 3 is arranged in the accommodation cavity formed by the first side cover 2 and the second side cover 4, avoidance spaces 7 are respectively provided on the first side cover 2 and the second side cover 4 corresponding to the lock tongues, facilitating the movement of the lock tongues along with the lock 3 in the accommodation cavity without interference. Specifically, the avoidance space 7 is an avoidance groove, as Figure 5 and Figure 7 shown.

[0087] Of course, in other embodiments, it is also possible that no avoidance spaces are provided on both the first side cover 2 and the second side cover 4, but the sides of the first side cover 2 and the second side cover 4 close to the lock 3 are arranged at intervals from the lock 3 without interfering with the movement of the lock 3; or, no avoidance space is provided on one of the first side cover 2 and the second side cover 4, and the side without the avoidance space is arranged at intervals from the lock 3 without interfering with the movement of the lock 3.

[0088] In order to further improve the assembly stability, the other ends of the first side cover 2 and the second side cover 4 corresponding to each other are connected by screws in this embodiment.

[0089] Specifically, as Figure 5 and Figure 7As shown in the figure, two fixing screw posts 203 are provided on the first side cover 2, and correspondingly two fixing screw holes 402 are provided on the second side cover 4. As a transformable embodiment, it can also be that fixing screw holes 402 are provided on the first side cover 2 and fixing screw posts 203 are provided on the second side cover 4. As a transformable embodiment, it can also be that the specific number of the fixing screw posts 203 and the fixing screw holes 402 is set according to actual needs, and no excessive limitation is made here.

[0090] The roller brush assembly in this embodiment includes an integral buckle 3 with three locking tongues. Three locking tongues are arranged at three different positions of one buckle 3, and the three locking tongues form a triangle, which has good stability, can prevent the roller brush 1 from being displaced, and can also solve the problems of inconvenient disassembly and assembly of the roller brush 1, complex structure of the buckle 3 and high manufacturing cost.

[0091] A handle groove is provided on the buckle 3. The buckle 3 is installed at the rear end of the first side cover 2. The user's finger can pass through the operation through hole and extend into the handle groove of the buckle 3 to pull the buckle 3. The finger pulls the buckle 3 towards the front side of the roller brush assembly, that is, moves along Figure 9 the arrow direction shown in the figure, so that the locking tongues of the buckle 3 are disengaged from the limiting structure 601 to achieve the unlocked state. After the external force applied to the buckle 3 disappears, the elastic force of the spring provides a force for the buckle 3 to return to its original position.

[0092] According to an embodiment of the present invention, on the other hand, a floor brush assembly is also provided, including:

[0093] A floor brush housing, and a limiting structure 601 is provided on the floor brush housing;

[0094] The above-mentioned roller brush assembly, and the roller brush assembly is assembled with the floor brush housing.

[0095] As Figure 9 shown in the figure, the limiting structure 601 in this embodiment is a limiting groove. Specifically, the number of the limiting grooves is the same as the number of the locking tongues, both being three. By setting the limiting structure 601 as a limiting groove, it is convenient to insert the locking tongue into the limiting groove to achieve the fixed state, and to remove the locking tongue from the limiting groove to achieve the unlocked state, and the structure is relatively simple.

[0096] The floor brush housing in this embodiment includes an upper shell 5 and a lower shell 6. A roller brush accommodating cavity is provided at the front end of the floor brush housing. The roller brush 1 is installed in the roller brush accommodating cavity. A receiving groove is provided on the side of the lower shell 6, and a limiting structure 601 is provided in the receiving groove. The limiting structure 601 cooperates with the roller brush assembly to fix the roller brush assembly.

[0097] When the roller brush assembly is installed on the floor brush housing, the three locking tongues of the roller brush assembly cooperate with the three corresponding limiting grooves of the floor brush housing to achieve the effect of fixing the roller brush assembly. When the buckle 3 moves forward under an external force, such asFigure 9 As shown, the three locking tongues are simultaneously disengaged from the limiting grooves. When the lock catch 3 moves backward under an external force, the three locking tongues are simultaneously inserted into the limiting grooves. As Figure 10 shown, the roller brush assembly can be disassembled from and assembled to the floor brush housing along the axis direction of the roller brush 1. This solution uses a single lock catch part to realize the limitation of the three locking tongues, which is convenient for users to disassemble and assemble the roller brush assembly and reduces the production cost.

[0098] According to an embodiment of the present invention, in a third aspect, there is also provided a cleaning device, including:

[0099] The above-mentioned floor brush assembly.

[0100] Specifically, the cleaning device in this embodiment is a floor washer. As an alternative embodiment, it may also be that the cleaning device is other cleaning devices with a floor brush assembly, and no further limitation is made here.

[0101] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A roller brush assembly, used for assembly with a floor brush assembly, wherein the floor brush assembly is provided with a limiting structure (601), characterized in that: The roller brush (1) assembly comprises: Roller brush (1); At least one first side cover (2) is arranged on at least one side of the roller brush (1), one end of the first side cover (2) is rotatably connected to the roller brush (1), and the other end has a receiving cavity, and the other end of the first side cover (2) is provided with an operating space (201), one side of the operating space (201) is connected to the receiving cavity, and the other side is connected to the outside; A lock buckle (3) is arranged in the accommodating cavity, and the lock buckle (3) includes a lock tongue, and the lock tongue is arranged corresponding to the limiting structure (601). The lock buckle (3) is used to move relative to the accommodating cavity under the action of an external force, so that the lock tongue has a fixed state connected to the limiting structure (601), and an unlocked state separated from the limiting structure (601).

2. The roller brush assembly according to claim 1, characterized in that: The lock buckle (3) is provided with an operating portion (302), the operating portion (302) is used for external force operation, and the operating portion (302) is arranged corresponding to the operating space (201).

3. The roller brush assembly according to claim 2, characterized in that: The projection of at least part of the structure of the operating portion (302) is located in the operating space (201), and along the moving direction of the lock buckle (3), the size of the operating space (201) is larger than the size of the operating portion (302) corresponding to the projection; And / or, the operating portion (302) is a hand-gripping groove.

4. The roller brush assembly according to claim 2, characterized in that: The lock buckle (3) comprises at least three lock tongues, and the at least three lock tongues are coplanar and together form a triangle.

5. The roller brush assembly according to claim 4, characterized in that: The locking tongue is provided with three, respectively including: A first locking tongue (303) is arranged at an end of the operating portion (302) away from the roller brush (1), and the first locking tongue (303) is located in the moving direction of the lock buckle (3); A second locking tongue (304) is arranged on one side of the operating portion (302); The third locking tongue (305) is arranged on the other side of the operating portion (302), and the second locking tongue (304) and the third locking tongue (305) are arranged alternately.

6. The roller brush assembly according to claim 5, characterized in that: The lock buckle (3) comprises an elastic member (301), one end of the elastic member (301) is fixedly connected to the other end of the operating portion (302), and the other end is fixedly connected in the accommodating cavity; The locking tongue is used to have the unlocked state under the action of an external force, and the locking tongue is used to have the fixed state under the elastic force of the elastic member (301).

7. The roller brush assembly according to any one of claims 1 to 6, characterized in that: The roller brush (1) assembly comprises a second side cover (4), wherein the second side cover (4) is fixedly connected to the other end of the first side cover (2); The first side cover (2) and the second side cover (4) are respectively provided with a receiving space, and the receiving spaces on the first side cover (2) and the second side cover (4) together form the receiving cavity.

8. The roller brush assembly according to claim 7, characterized in that: The first side cover (2) is snap-connected with a corresponding end of the second side cover (4).

9. The roller brush assembly according to claim 8, characterized in that: The first side cover (2) is provided with a card slot (202), and the second side cover (4) is provided with a card engaging protrusion (401) that cooperates with and engages with the card slot (202).

10. The roller brush assembly according to claim 9, characterized in that: The clamping groove (202) and the clamping protrusion (401) are respectively arranged along at least two different directions.

11. The roller brush assembly according to claim 7, characterized in that: The first side cover (2) and the second side cover (4) are respectively provided with avoidance spaces (7) at locations corresponding to the lock tongues.

12. The roller brush assembly according to any one of claims 8 to 11, characterized in that: The first side cover (2) is screw-connected to the other end corresponding to the second side cover (4).

13. A floor brush assembly, characterized in that: include: A floor brush housing, wherein the limiting structure (601) is provided on the floor brush housing; The roller brush assembly according to any one of claims 1 to 12, wherein the roller brush assembly is assembled with the floor brush housing.

14. The floor brush assembly according to claim 13, characterized in that: The limiting structure (601) is a limiting groove.

15. A cleaning device, characterized in that: include: The floor brush assembly according to any one of claims 13 to 14.

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