CN216854560U - Scrubbing brush and ground cleaning equipment - Google Patents

Abstract

The utility model provides a floor brush and floor cleaning equipment, wherein the floor brush comprises a shell, a first rolling brush and a second rolling brush, the shell comprises a first side wall and a second side wall which are positioned at two sides, the front end of the shell is provided with a fixing support and a transmission support which are oppositely arranged, the fixing support is flush with the first side wall, and the transmission support is arranged close to the second side wall; the first rolling brush is detachably connected between the fixed support and the transmission support; one end of the second rolling brush is detachably connected to one side, back to the fixed support, of the transmission support, the other end of the second rolling brush is flush with the second side wall, and the length of the second rolling brush is smaller than that of the first rolling brush. The floor brush adopts a long and short rolling brush structure, one end of a second rolling brush serving as the short rolling brush is fixed on the transmission bracket, the other end of the second rolling brush is flush with the side wall of the shell, and the second rolling brush can be attached to the wall for cleaning without cleaning dead angles. And, first round brush and second round brush are for dismantling the setting, and the dismouting and the change of being convenient for maintain with low costsly.

Description

Scrubbing brush and ground cleaning equipment

Technical Field

The utility model belongs to the technical field of ground cleaning equipment, and particularly relates to a floor brush and ground cleaning equipment.

Background

In the prior art, people often adopt automatic cleaning equipment to clean the ground, such as a floor washing machine, a dust collector and the like, the automatic cleaning equipment comprises a floor brush which is in direct contact with the ground in the cleaning process, two sides of the floor brush are provided with fixing mechanisms for fixing the rolling brush of the floor brush, and due to the interference of the fixing mechanisms, the rolling brush cannot be attached to the wall for cleaning and dead corners are left when the floor brush is attached to the wall for cleaning and sanitation.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide a floor brush and floor cleaning equipment, which can be used for cleaning the floor brush close to a wall without cleaning dead corners and have low maintenance cost.

In a first aspect, an embodiment of the present application provides a floor brush for a floor cleaning device, the floor brush comprising:

the shell comprises a first side wall and a second side wall, the front end of the shell is provided with a fixing support and a transmission support which are oppositely arranged, the fixing support is flush with the first side wall, and the transmission support is arranged close to the second side wall;

the first rolling brush is detachably connected between the fixed support and the transmission support;

the second rolling brush is coaxial with the first rolling brush, one end of the second rolling brush is detachably connected to one side, back to the fixed support, of the transmission support, the other end of the second rolling brush is flush with the second side wall, and the length of the second rolling brush is smaller than that of the first rolling brush.

In one possible implementation manner of the first aspect, the transmission bracket is provided with a first transmission shaft connected with the first rolling brush and a second transmission shaft connected with the second rolling brush.

In one possible implementation form of the first aspect, the first transmission shaft is provided with an external spline having a spiral structure, and the first rolling brush is provided with an internal spline, and the external spline is engaged with the internal spline.

In a possible implementation manner of the first aspect, a clamping tongue is arranged at one end of the first rolling brush, which is connected with the fixed support, a clamping groove is arranged at one side of the fixed support, which faces the transmission support, the clamping tongue is detachably embedded in the clamping groove, and the clamping tongue is exposed outside the clamping groove.

In a possible implementation manner of the first aspect, one end of the second rolling brush is provided with a concave hole, the second transmission shaft is inserted into the concave hole, a locking mechanism for locking the second transmission shaft in the concave hole is arranged in the concave hole, and the other end of the second rolling brush is provided with an unlocking button.

In a possible implementation manner of the first aspect, one end of the second rolling brush is provided with a concave hole, the second transmission shaft is inserted into the concave hole, the outer circumferential surface of the second transmission shaft is provided with at least one rib which forms an inclination angle with the axis direction of the second transmission shaft, and an inclined groove corresponding to the rib is arranged in the concave hole.

In one possible implementation of the first aspect, a motor and a gear set connected to an output shaft of the motor are disposed in the housing, the gear set is connected to the first transmission shaft and the second transmission shaft, respectively, and the gear set is mounted in a gear box, and the transmission bracket is configured as at least a part of the gear box.

In a possible implementation manner of the first aspect, a metal scraper is arranged at the front end of the housing, the metal scraper is respectively abutted against the first rolling brush and the second rolling brush, and the metal scraper extends along the axial direction of the first rolling brush and the second rolling brush; the casing front end still is provided with the silica gel and scrapes the strip, and the silica gel scrapes the strip and exposes in the casing bottom, and the silica gel scrapes the strip and extends along the axial direction of first round brush and second round brush.

In a possible implementation manner of the first aspect, the floor brush further comprises a cover plate installed on the top of the housing, at least a part of the cover plate covers the first rolling brush and the second rolling brush, a magnet is arranged on the top of the housing, the cover plate is provided with an iron sheet corresponding to the magnet, and the cover plate is detachably connected with the housing through the matching of the magnet and the iron sheet.

In a second aspect, embodiments of the present application provide a floor cleaning device comprising the above-described floor brush.

In the embodiment of the application, a floor brush is provided, which comprises a shell, a first rolling brush and a second rolling brush, wherein the shell comprises a first side wall and a second side wall which are positioned at two sides; the first rolling brush is detachably connected between the fixed support and the transmission support; one end of the second rolling brush is detachably connected to one side, back to the fixed support, of the transmission support, the other end of the second rolling brush is flush with the second side wall, and the length of the second rolling brush is smaller than that of the first rolling brush. The utility model adopts a long and short rolling brush structure, one end of the second rolling brush as the short rolling brush is fixed on the transmission bracket, and the other end of the second rolling brush is flush with the side wall of the shell. The first rolling brush has larger mass and is fixed at the two ends of the first rolling brush through the fixed bracket and the transmission bracket; and the second rolling brush has smaller mass and is fixed only by the transmission bracket, so that the design is reasonable. And first round brush and second round brush can be dismantled and connect on fixed bolster and transmission support, and the dismouting and the change of being convenient for maintain with low costs.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a perspective view of a floor brush provided in accordance with one embodiment of the present invention;

FIG. 2 is a cross-sectional view of a floor brush provided in accordance with one embodiment of the present invention;

FIG. 3 is a front view of a floor brush provided in accordance with one embodiment of the present invention;

FIG. 4 is a schematic view of the installation of the first and second rolling brushes of the floor brush according to an embodiment of the present invention;

FIG. 5 is a schematic view of a first drive shaft and a drive bracket of a floor brush according to an embodiment of the present invention;

FIG. 6 is a schematic view of a second driving shaft and a second rolling brush of a floor brush according to another embodiment of the present invention;

FIG. 7 is a schematic view of a gear shaft of the floor brush provided by one embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

The existing automatic cleaning equipment comprises a floor brush which is directly contacted with the ground in the cleaning process, and two sides of the floor brush are provided with a fixing mechanism for fixing the rolling brush of the floor brush, so that the rolling brush cannot be attached to the wall for cleaning when the floor brush is attached to the wall for cleaning, and dead corners are left.

The utility model provides a floor brush which is applied to floor cleaning equipment, wherein the floor cleaning equipment can be a dust collector, a floor washing machine and the like. The floor brush comprises a shell, a first rolling brush and a second rolling brush, wherein the shell comprises a first side wall and a second side wall which are positioned at two sides, the front end of the shell is provided with a fixing support and a transmission support which are oppositely arranged, the fixing support is flush with the first side wall, and the transmission support is arranged close to the second side wall; the first rolling brush is detachably connected between the fixed support and the transmission support; one end of the second rolling brush is detachably connected to one side, back to the fixed support, of the transmission support, the other end of the second rolling brush is flush with the second side wall, and the length of the second rolling brush is smaller than that of the first rolling brush. The utility model adopts a long and short rolling brush structure, one end of the second rolling brush as the short rolling brush is fixed on the transmission bracket, and the other end is flush with the side wall of the shell. The first rolling brush has larger mass and is fixed at the two ends of the first rolling brush through the fixed bracket and the transmission bracket; and the second rolling brush has smaller mass and is fixed only by the transmission bracket, so that the design is reasonable. And first round brush and second round brush can be dismantled and connect on fixed bolster and transmission support, and the dismouting and the change of being convenient for maintain with low costs.

As shown in fig. 1 to 7, the embodiment of the present application provides a floor brush 100, which is applied to a floor washing machine, and the floor brush 100 can be mounted on a steering mechanism 200 of the floor washing machine, and the steering mechanism is connected with moving wheels 300 at the left and right sides. In the moving process of the floor washing machine, the floor brush 100 moves along with the moving wheel 300, so that the floor can be cleaned conveniently. The floor brush 100 includes a housing 10, a first roll brush 20, and a second roll brush 30.

The casing 10 comprises a first side wall 11 and a second side wall 12 which are positioned at two sides of the casing, the front end of the casing 10 is provided with a fixing bracket 13 and a transmission bracket 14 which are oppositely arranged, the fixing bracket 13 is flush with the first side wall 11, and the transmission bracket 14 is arranged close to the second side wall 12. The front end of the housing 10 is an end far away from the moving wheel 300, and the first side wall 11 and the second side wall 12 are formed by extending downward from two sides of the top of the housing. The transmission bracket 14 is provided with a first transmission shaft 141 connected with the first rolling brush 20 and a second transmission shaft 142 connected with the second rolling brush 30, the first transmission shaft 141 and the second transmission shaft 142 are coaxially arranged and penetrate through the transmission bracket 14, and therefore, the first rolling brush and the second rolling brush 30 are coaxially arranged. In some embodiments, the housing 10 may include an upper housing and a lower housing, and the fixing bracket 13 may be integrally injection-molded with the housing 10; the transmission bracket 14 may be mounted to the front of the housing 10 or may be integrally injection molded with the housing 10. The first transmission shaft 141 and the second transmission shaft 142 may be made of a metal material and may be integrally formed. The first side wall 11 and the second side wall 12 are of a flat design so that the floor brush 100 can be cleaned against a wall.

The first rolling brush 20 is detachably coupled between the fixing bracket 13 and the driving bracket 14, and the fixing bracket 13 and the driving bracket 14 support the first rolling brush 20 from both sides.

The second rolling brush 30 is coaxially arranged with the first rolling brush 20, one end of the second rolling brush 30 is detachably connected to one side of the transmission bracket 14, which is back to the fixed bracket 13, the other end of the second rolling brush is flush with the second side wall 12, and the length of the second rolling brush 30 is smaller than that of the first rolling brush 20. Since one end of the second rolling brush 30 is flush with the second sidewall 12, when the floor brush 100 cleans the floor and the second sidewall 12 of the housing 10 moves along the wall, the end of the second rolling brush 30 can also clean along the wall without leaving a dead cleaning corner. Wherein, the first rolling brush 20 and the second rolling brush 30 are roller structures, and the outer layer thereof is one of cleaning cotton cloth or cleaning brush.

And since the driving bracket 14 is disposed near the second sidewall 12, the length of the second brush roll 30 can be set short, and only the driving bracket 14 is supported from one end of the second brush roll 30. The two ends of the longer first rolling brush 20 are respectively supported by the fixing support 13 and the transmission support 14, so that the support stability is improved, and the design is reasonable.

In this embodiment, the first transmission shaft 141 and the second transmission shaft 142 are connected to a driving mechanism inside the casing 100, and under the driving of the driving mechanism, the first transmission shaft 141 drives the first rolling brush 20 to rotate, and the second transmission shaft 142 drives the second rolling brush 30 to rotate, so as to clean the floor.

In fig. 2 and 3, the first and second roll brushes 20 and 30 are not shown in order to embody the structures of the first and second transmission shafts 141 and 142.

As shown in fig. 4 and 5, in order to realize the transmission relationship between the first transmission shaft 141 and the first rolling brush 20, the first transmission shaft 141 is provided with an external spline 1411 having a spiral structure, the first rolling brush 20 is provided with an internal spline 21, and the external spline 1411 is engaged with the internal spline 21. The spline design of the spiral structure generates an inward force when the first transmission shaft 141 rotates, and the first rolling brush 20 is gripped when rotating at a high speed, so that the first rolling brush 20 is difficult to fall off, and the efficiency of mopping the floor is improved.

In this embodiment, a latch 22 is disposed at an end of the first rolling brush 20 connected to the fixed bracket 13, a slot 131 is disposed at a side of the fixed bracket 13 facing the transmission bracket 14, the latch 22 is detachably inserted into the slot 131, and a portion of the latch 22 is exposed outside the slot 131. The latch 22 is rotatably connected to the first rolling brush 20, for example, the latch 22 is connected to a bearing disposed on the first rolling brush 20, so that the latch 22 does not rotate integrally with the first rolling brush 20. When the first rolling brush 20 needs to be replaced and disassembled, the part of the clamping tongue 22 exposed outside the clamping groove 131 can be lifted upwards, so that the first rolling brush 20 is firstly separated from the fixed bracket 13, and then the first rolling brush 20 is transversely moved, so that the first rolling brush 20 is separated from the first transmission shaft 141, and the first rolling brush 20 can be replaced and disassembled; when the first rolling brush 20 needs to be installed, the internal spline 21 of the first rolling brush 20 and the external spline of the first transmission shaft 141 may be installed in a matching manner, and then the tongue 22 of the first rolling brush 20 is pressed into the groove 131 of the fixing bracket 13, so that the first rolling brush 20 can be installed. Thereby, realized first round brush 20 can dismantle the setting, be convenient for change, especially when first round brush 20 appears wearing and tearing after long-time the use under the condition, need not to change whole scrubbing brush 100, only need change first round brush 20 can, the cost is reduced.

As shown in fig. 1 to 4, the second roll brush 30 has a recess (not shown) at one end and an unlock button 31 at the other end, the second transmission shaft 142 is inserted into the recess, and a locking mechanism (not shown) for locking the second transmission shaft 142 in the recess is provided in the recess. Specifically, the end of the second transmission shaft 142 may be provided with an annular groove, and the locking mechanism may catch the annular groove when the second transmission shaft 142 is inserted into the groove. In the present embodiment, the second rolling brush 30 and the second transmission shaft 142 can be unlocked by pressing the unlocking button 31, and then the second rolling brush 30 is pulled out along the axial direction of the second rolling brush 30, so that the second rolling brush 30 can be detached; when the second rolling brush 30 needs to be installed, the second transmission shaft 132 can be directly inserted into the concave hole of the second rolling brush 30, and the locking mechanism inside the second rolling brush 30 automatically locks the second transmission shaft 132. Thereby, the detachable arrangement of the second round brush 30 is realized, the replacement is convenient, and the use cost is reduced.

Fig. 6 is a schematic structural view of a second transmission shaft and a second rolling brush of the floor brush in another embodiment. As shown in fig. 6, a recess (not shown) is formed at one end of the second rolling brush 30, the second transmission shaft 142 is inserted into the recess, ribs 1421 having an inclination angle with respect to the axial direction of the second transmission shaft 142 are disposed on the outer circumferential surface of the second transmission shaft 142, and inclined grooves corresponding to the ribs 1421 are disposed in the recess. In the process that the second transmission shaft 142 drives the second rolling brush 30 to rotate, inward force is generated through the matching of the ribs 1421 and the inclined grooves in the concave holes, the second rolling brush 30 is tightly grasped when rotating at a high speed, the second rolling brush 30 is difficult to drop, and 1, 2 or more ribs 1421 can be arranged. Further, a protruding point 1422 is disposed on the second transmission shaft, and the protruding point 1422 enables the second rolling brush 30 to be in interference fit with the second transmission shaft 142, so as to enhance the fixing relationship between the second rolling brush 30 and the second transmission shaft 142. One end of the second rolling brush 30, which is far away from the second transmission shaft 142, is provided with an open slot 32, a rib plate 33 for pulling out the second rolling brush 30 is arranged in the open slot 32, and when the second rolling brush 30 needs to be taken out from the second transmission shaft 142, the rib plate 33 only needs to be pinched and pulled out in a direction far away from the second transmission shaft 142. In the embodiment shown in fig. 6, in order to show the detailed structure of the second rolling brush 30 and the second transmission shaft 142, other parts of the floor brush 100 are not shown, and reference may be made to fig. 1 to 5 for other parts of the floor brush 100.

In order to realize the rolling of the first rolling brush 20 and the second rolling brush 30, the housing 10 is provided with the motor 15 and a gear set connected to an output shaft of the motor 15, the gear set is respectively connected to the first transmission shaft 141 and the second transmission shaft 142, and the gear set is installed in the gear box 152, and the transmission bracket 14 is configured as at least one part of the gear box 152. As shown in fig. 7, the gear set includes 5 gears with different sizes and meshed with each other, including gears 151A, 151B, 151C, 151D, and 151E, the gear 151A is connected to an output shaft of the motor 15, the gear 151B is meshed with the gear 151A and the gear 151C, the gear 151D is meshed with the gear 151C and the gear 151E, the first transmission shaft 141 and the second transmission shaft 142 coaxially penetrate through a central through hole of the gear 151E, the gear 151A is driven by the motor 15 to operate, the gear 151A drives the gears 151B, 151C, 151D, and 151E to rotate, the gear 151E drives the first transmission shaft 141 and the second transmission shaft 142, and finally drives the first rolling brush 20 and the second rolling brush 30 to roll. In some embodiments, the drive bracket 14 may be integrally injection molded with the gear box 152.

In the present embodiment, as shown in fig. 2, a metal blade 16 is further provided at the front end of the housing 10, the metal blade 16 abuts against the first rolling brush 20 and the second rolling brush 30, respectively, and the metal blade 16 extends in the axial direction of the first rolling brush 20 and the second rolling brush 30. The metal scraper 16 is designed to be inclined, and the scraper is closely attached to the roller brush body and used for scraping dirt and sewage on the first roller brush 20 and the second roller brush 30.

As shown in fig. 3 and 7, the front end of the casing 10 is further provided with a silica gel scraper 17, the silica gel scraper 17 is exposed at the bottom of the casing 10, and the silica gel scraper 17 extends along the axial direction of the first rolling brush 20 and the second rolling brush 30. The silica gel scraping strip 17 is designed in an inclined mode, and the silica gel hanging strip is tightly attached to the ground in the using process, so that the sewage can be gathered and collected, and the floor mopping efficiency is improved.

As shown in fig. 2 and 3, the front end of the housing 10 is further provided with a dust suction opening 18 and a water spray hole 191 connected to a water pump 19. The housing 10 is provided with a suction pump which is connected to a dust suction opening 18, the dust suction opening 18 being provided in the middle of the front end of the housing. The dust and dirty water on the ground can be sucked through the dust suction opening 18, and the dry and wet suction is realized. The suction opening 18 may be designed with a flat mouth to enhance suction. The water pump 19 is disposed inside the casing 10, at least 4 water spraying holes 191 are disposed, and the 4 water spraying holes 191 are symmetrically and uniformly disposed at two sides of the dust collecting opening 18, and the water spraying holes 191 spray water or cleaning liquid toward the floor surface in the operation process of the floor brush 100.

As shown in fig. 1 and 4, the floor brush 100 further includes a cover plate 40 installed on the top of the casing 10, at least a portion of the cover plate 40 covers the first rolling brush 20 and the second rolling brush 30, a magnet 50 is disposed on the top of the casing 10, the cover plate 40 has an iron piece (not shown) corresponding to the magnet 50, and the cover plate 40 is detachably connected to the casing 10 by the cooperation of the magnet 50 and the iron piece. As shown in fig. 1 and 3, an avoiding gap 60 for avoiding and installing the cover plate 40 is further disposed at the top of the housing, the magnet 50 is disposed at the avoiding gap 60, a part of the cover plate 40 is accommodated in the avoiding gap 60, and another part of the cover plate 40 extends out of the housing 10 and has a curvature towards the first rolling brush 20 and the second rolling brush 30 so as to cover the upper side and the front side of the first rolling brush 20 and the second rolling brush 30, so that in the rotating process of the first rolling brush 20 and the second rolling brush 30, stains and sewage brought by the rolling brushes during rotation are prevented from splashing, and the cleaning effect is reduced. The cover plate 40 is preferably made of plastic, when the cover plate 40 is abutted to the housing 10, the iron sheet of the cover plate 40 is attracted by the magnet 50 of the housing 10, and the cover plate 40 is easy to assemble and disassemble due to the magnetic attraction design. In fig. 3 and 4, the cover plate 40 is not shown.

As shown in FIG. 7, the bottom of the housing 10 is further provided with a trolley 70 for supporting the housing 10, and the trolley 70 is provided with at least one, and the floor brush 100 can follow the moving wheel 300 when the floor washing machine moves.

It should be understood that the present application provides that the floor brush 100 can be applied to different scenes, such as a vacuum cleaner or a floor washing machine, and can also be applied to other floor cleaning devices, so that the cleaning device can be clean along the wall without leaving a dead cleaning space when cleaning.

In summary, the utility model adopts the long and short rolling brush structure, one end of the second rolling brush as the short rolling brush is fixed on the transmission bracket, and the other end is flush with the side wall of the shell, so that when the floor brush is stuck on the wall for cleaning, the second rolling brush can be stuck on the wall for cleaning without cleaning dead angles. The first rolling brush has larger mass and is fixed at the two ends of the first rolling brush through the fixed bracket and the transmission bracket; and the second round brush has less quality, only fixes through the transmission support, reasonable in design. And first round brush and second round brush can be dismantled and connect on fixed bolster and transmission support, and the dismouting and the change of being convenient for maintain with low costs.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A floor brush for a floor scrubbing apparatus, the floor brush comprising:

the front end of the shell is provided with a fixing support and a transmission support which are oppositely arranged, the fixing support is flush with the first side wall, and the transmission support is arranged close to the second side wall;

the first rolling brush is detachably connected between the fixed bracket and the transmission bracket;

the second round brush, with first round brush coaxial arrangement, second round brush one end can dismantle connect in on the transmission bracket dorsad one side of fixed bolster, the other end with the second lateral wall flushes, just the length of second round brush is less than first round brush.

2. A floor brush as claimed in claim 1, wherein the drive carrier has a first drive shaft connected to the first roller brush and a second drive shaft connected to the second roller brush.

3. A floor brush as claimed in claim 2, wherein the first drive shaft is provided with external splines having a helical configuration, and the first roller brush is provided with internal splines, the external splines engaging with the internal splines.

4. The floor brush as claimed in claim 2, wherein a latch is provided at an end of the first rolling brush connected to the fixing bracket, a slot is provided at a side of the fixing bracket facing the transmission bracket, the latch is detachably inserted into the slot, and the latch is exposed outside the slot.

5. A floor brush according to claim 2, wherein the second roller brush has a recess at one end into which the second drive shaft is inserted, a locking mechanism is provided in the recess for locking the second drive shaft in the recess, and an unlocking button is provided at the other end of the second roller brush.

6. A floor brush as claimed in claim 2, wherein the second rolling brush has a recess at one end, the second transmission shaft is inserted into the recess, the second transmission shaft has at least one rib formed on its outer circumferential surface and forming an inclination angle with the axial direction of the second transmission shaft, and the recess has an inclined groove corresponding to the rib.

7. A floor brush as claimed in claim 2, wherein a motor and a gear set connected to the output shaft of the motor are provided in the housing, the gear set being connected to the first and second drive shafts respectively and being mounted in a gearbox, the drive carrier forming at least part of the gearbox.

8. A floor brush according to claim 1, wherein a metal blade is provided at a front end of the housing, the metal blade being abutted against the first and second roll brushes, respectively, and the metal blade extending in an axial direction of the first and second roll brushes;

the casing front end still is provided with the silica gel and scrapes the strip, the silica gel scrape the strip expose in the casing bottom, just the silica gel scrape the strip and follow the axial direction of first round brush and second round brush extends.

9. The floor brush as claimed in claim 1, further comprising a cover plate installed on the top of the housing, wherein at least a portion of the cover plate covers the first rolling brush and the second rolling brush, a magnet is disposed on the top of the housing, the cover plate has an iron sheet corresponding to the magnet, and the cover plate is detachably connected to the housing through the cooperation of the magnet and the iron sheet.

10. A floor cleaning device, characterized in that it comprises a floor brush as claimed in any one of claims 1 to 9.

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