Floor brush and vacuum cleaner having the same

Abstract

The present application relates to the technical field of cleaning equipment, in particular to a floor brush and a dust collector with the same. The present application provides a floor brush, which comprises a rolling brush shell, a rolling brush room arranged in the rolling brush shell, a rolling brush arranged in the rolling brush room and in transmission connection with a rolling brush driving motor in the floor brush, and a blade assembly comprising a first blade, a swing rod and a second blade. The first blade is arranged on the rolling brush shell and close to the rolling brush, and the second blade is close to the first blade. The rolling brush driving motor drives the second blade to make horizontal reciprocating motion relative to the first blade through the swing rod. The blade assembly of the present application drives the second blade to make horizontal reciprocating motion relative to the first blade through the rolling brush driving motor, so as to achieve the purpose of cutting off the hair on the rolling brush. The energy used by the floor brush can be saved, and the structure of the blade assembly and the floor brush can be simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning equipment, in particular to a floor brush and a vacuum cleaner with the same. BACKGROUND

[0002] This part provides only background information related to the present disclosure, which is not necessarily prior art.

[0003] At present, vacuum cleaners are gradually widely used, greatly facilitating household cleaning work and reducing the intensity of people's housework. However, after the dust removal work of the vacuum cleaner, the floor brush is often entangled with hair, fine lines and other long and thin objects, which hinders the rotation of the roller brush, so manual cleaning is required. This increases the difficulty of cleaning work, thereby reducing the user's experience. SUMMARY

[0004] The present application aims to at least partially solve the technical problems of the hair shearing mechanism of the existing floor brush, such as complex structure and poor shearing effect.

[0005] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a floor brush, comprising: a roller brush shell, a roller brush chamber is arranged in the roller brush shell; a roller brush, the roller brush is arranged in the roller brush chamber and is in transmission connection with a roller brush driving motor in the floor brush; a blade assembly, the blade assembly comprises a first blade, a swing rod and a second blade, the first blade is arranged on the roller brush shell and close to the roller brush, the second blade is close to the first blade, and the roller brush driving motor drives the second blade to make horizontal reciprocating motion relative to the first blade through the swing rod.

[0006] The blade assembly of the present application drives the second blade to make horizontal reciprocating motion relative to the first blade through the roller brush driving motor, so as to achieve the purpose of shearing the hair on the roller brush. The blade assembly and the roller brush share the roller brush driving motor, which has the advantages of simple structure and high reliability. At the same time, the blade assembly will not damage the roller brush while shearing the hair.

[0007] In addition, the floor brush according to the present application can also have the following additional technical features:

[0008] According to an embodiment of the present application, the bottom of the first blade is provided with a plurality of first sawteeth bent in L shape, the bottom of the second blade is provided with a plurality of second sawteeth bent in L shape, and the plurality of second sawteeth are located below the plurality of first sawteeth.

[0009] According to an embodiment of the present application, the bottom of the first blade is provided with a plurality of first sawteeth bent in L shape, the bottom of the second blade is provided with a plurality of second sawteeth bent in L shape, and the plurality of second sawteeth are located above the plurality of first sawteeth.

[0010] According to one embodiment of the present application, one side of the first blade is provided with a sliding groove, and one side of the second blade is provided with a sliding rail matched with the sliding groove, and the second blade is attached to the first blade through the sliding rail and the sliding groove.

[0011] According to one embodiment of the present application, the second blade is provided with a first elastic element on the side facing away from the rolling brush, and the first blade is attached to the second blade under the elastic force of the first elastic element.

[0012] According to one embodiment of the present application, the second blade is provided with a magnetic element on the side facing the first blade, or the first blade is provided with a magnetic element on the side facing the second blade, and the second blade is attached to the first blade through the magnetic element.

[0013] According to one embodiment of the present application, the second blade is provided with a second elastic element on both ends, and the second blade is horizontally reciprocated under the joint action of the swing lever and the second elastic element.

[0014] According to one embodiment of the present application, the blade assembly further comprises a reciprocating driving device arranged on the rolling brush shell, and the reciprocating driving device is in transmission connection with the second blade, and the reciprocating driving device drives the second blade to horizontally reciprocate.

[0015] According to one embodiment of the present application, the reciprocating driving device comprises a driving motor, a rolling shaft and a lever, the rolling shaft is arranged on the output end of the driving motor, the outer wall of the rolling shaft is provided with a corrugated groove, one end of the lever is arranged in the corrugated groove, and the other end of the lever is connected with the second blade.

[0016] The second aspect of the present application also provides a dust collector, which comprises the ground brush according to the first aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present application. Moreover, the same reference numerals in the attached drawings indicate the same or similar components. In the drawings:

[0018] Figure 1 FIG. 1 is a structural schematic view of a dust collector according to one embodiment of the present application;

[0019] Figure 2 FIG. 2 is a sectional view of the dust collector shown in FIG. 1; Figure 1

[0020] Figure 3 FIG. 3 is a structural schematic view of a ground brush according to one embodiment of the present application;

[0021] ​Figure 4 Structure diagram of a blade assembly according to an embodiment of the present application;

[0022] Figure 5 Structure diagram of a blade assembly according to another embodiment of the present application.

[0023] Figure 6 Structure diagram of a brush according to another embodiment of the present application;

[0024] Figure 7 Structure diagram of a brush according to another embodiment of the present application. Figure 6 Structure diagram of a brush according to another embodiment of the present application.

[0025] In the drawings, the following reference signs are used:

[0026] 100, a vacuum cleaner;

[0027] 10, a brush housing;

[0028] 20, a brush; 21, a brush body; 22, brush hairs;

[0029] 30, a blade assembly; 31, a first blade; 311, a first sawtooth; 312, a sliding groove; 32, a second blade; 321, a second sawtooth; 322, a sliding rail; 33, a brush driving motor; 34, a conveyor belt; 35, an input shaft; 36, a cam groove; 37, a swing lever; 371, a roller; 38, a second elastic element; 39, a first elastic element; 39', a magnetic element; 41, a driving motor; 42, a roller shaft; 43, a push lever; 44, a second corrugated groove. DETAILED DESCRIPTION

[0030] Exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure can be more thoroughly understood, and the scope of the present disclosure can be accurately conveyed to those skilled in the art. It should be noted that the application of the brush to the vacuum cleaner is only a preferred embodiment of the present application, and is not a limitation on the application range of the brush in the present application. For example, the brush of the present application can also be applied to other cleaning devices such as a sweeping robot, and such adjustment is within the protection scope of the brush of the present application.

[0031] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" are inclusive and therefore specify the presence of stated features, elements, components, and / or integers, but do not preclude the presence or addition of one or more other features, elements, components, and / or integers.

[0032] In addition, the terms "first", "second", etc. are used herein only to describe different examples and do not imply these relative importance or a recitation that the features so designated are essential, important, or critical. Thus, a feature described as "first" can also be termed "second", and vice versa.

[0033] In the description of the present application, unless otherwise clearly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] For ease of description, spatial relative terms can be used herein to describe the relationship of one element or feature to another element or feature as shown in the drawings, such as "inner", "upper", "outer", "circumferential", "end", "intermediate", "side", "facing", "away from", etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation in addition to the orientation depicted in the drawings. For example, if the mechanism is turned over, then the element described as "below" or "under" the other element or feature would be oriented "above" or "over" the other element or feature. Therefore, the example term "below" can include both the above and below orientations. The mechanism can be additionally oriented (rotated 90 degrees or in other orientations) and the spatial relative terms used herein are interpreted accordingly.

[0035] As Figures 1 to 3As shown, the first aspect of the present application provides a floor brush, which comprises a roller brush shell 10, a roller brush 20 and a blade assembly 30. The roller brush shell 10 is provided with a roller brush chamber. The roller brush 20 is arranged in the roller brush chamber and is in transmission connection with a roller brush driving motor 33 in the floor brush. The blade assembly 30 comprises a first blade 31, a swing rod 37 and a second blade 32. The first blade 31 is arranged on the roller brush shell 10 and is close to the roller brush 20. The second blade 32 is close to the first blade 31. The roller brush driving motor 33 drives the second blade 32 to make horizontal reciprocating motion relative to the first blade 31 through the swing rod 37.

[0036] The blade assembly of the above embodiment can reduce the phenomenon of hair entanglement of the roller brush 20. The blade assembly 30 shares the roller brush driving motor 33 with the roller brush 20, which has the advantages of simple structure and high reliability. Meanwhile, the blade assembly 30 will not damage the roller brush 20 while cutting hair. Specifically, the roller brush driving motor 33 can drive the swing rod 37 through the input shaft 35 on the roller brush 20, and can also drive the swing rod 37 through an additional transmission mechanism, so as to convert the rotary motion of the roller brush driving motor 33 into the swing motion of the swing rod 37, thereby realizing the horizontal reciprocating motion of the second blade 32 relative to the first blade 31 driven by the swing rod 37. Further, the roller brush 20 comprises a roller brush body 21 and roller brush hairs 22 arranged on the outer wall of the roller brush body 21. The first blade 31 and the second blade 32 are close to the roller brush hairs 22 without contacting the roller brush hairs 22, so as to reduce the phenomenon of shearing the roller brush hairs 22 by the blade assembly 30.

[0037] It should be noted that the above embodiment does not elaborate whether the swing rod 37 has a connection relationship with the roller brush shell 10 and the specific connection structure between the swing rod 37 and the roller brush shell 10, because the swing rod 37 can be connected with the roller brush shell 10 or not connected with the roller brush shell 10. Of course, in order to improve the motion stability of the swing rod 37, the swing rod 37 and the roller brush shell 10 can have a connection structure. For example, according to one embodiment of the present application, the roller brush 20 is provided with an input shaft 35 in transmission connection with the roller brush driving motor 33. One end of the swing rod 37 is connected with a transmission structure on the input shaft 35. The second blade 32 is arranged at the other end of the swing rod 37. The middle segment of the swing rod 37 is rotatably connected to the roller brush shell 10. One end of the swing rod 37 can drive the other end of the swing rod 37 and the second blade 32 to swing reciprocating motion with the middle segment as the rotation center. According to another embodiment of the present application, the swing rod 37 is not connected with the floor brush shell 10. One end of the swing rod 37 is slidably connected to the roller brush shell 10. The other end of the swing rod 37 is connected with the second blade 32. One end of the swing rod 37 can drive the other end of the swing rod 37 and the second blade 32 to translational reciprocating motion under the drive of the roller brush driving motor 33. The connection structure between the swing rod 37 and the roller brush shell 10 will be elaborated in detail below.

[0038] As shown in FIG. 1, the floor brush comprises a roller brush shell 10, a roller brush 20 and a blade assembly 30. The roller brush shell 10 is provided with a roller brush chamber. The roller brush 20 is arranged in the roller brush chamber and is in transmission connection with a roller brush driving motor 33 in the floor brush. The blade assembly 30 comprises a first blade 31, a swing rod 37 and a second blade 32. The first blade 31 is arranged on the roller brush shell 10 and is close to the roller brush 20. The second blade 32 is close to the first blade 31. The roller brush driving motor 33 drives the second blade 32 to make horizontal reciprocating motion relative to the first blade 31 through the swing rod 37. Figure 3As shown, according to one embodiment of the present application, the transmission structure comprises cam grooves 36 distributed on the outer wall of the input shaft 35, one end of the swing lever 37 is provided with a roller 371 matched with the cam grooves 36, the roller 371 is driven by the cam grooves 36 to make up-down reciprocating motion by the roller brush driving motor 33, the other end of the swing lever 37 is clamped in the clamping groove on the second blade 32, and the middle section of the swing lever 37 is rotatably arranged on the roller brush shell 10. When the input shaft 35 rotates, the input shaft 35 drives the roller 371 to make up-down reciprocating motion through the cam grooves 36, and the up-down reciprocating motion of the roller 371 is combined with the rotary motion of the swing lever 37 to form the horizontal reciprocating motion of the other end of the swing lever 37, so as to achieve the purpose of driving the second blade 32 to make horizontal reciprocating motion.

[0039] According to another embodiment of the present application, the transmission structure comprises first corrugated grooves distributed on the outer wall of the input shaft 35, one end of the swing lever 37 is provided with a roller 371 matched with the first corrugated grooves, the roller 371 is driven by the first corrugated grooves to make horizontal reciprocating motion by the roller brush driving motor 33, the other end of the swing lever 37 is clamped in the clamping groove on the second blade 32, and the middle section of the swing lever 37 is rotatably arranged on the roller brush shell 10. When the input shaft 35 rotates driven by the roller brush driving motor 33 through the transmission belt 34, one end of the swing lever 37 is arranged in the first corrugated grooves, the first corrugated grooves only limit one end of the swing lever 37 and do not drive the swing lever 37 to make circular motion, and the first corrugated grooves contact one end of the swing lever 37 through different parts to achieve the purpose of driving the swing lever 37 to make horizontal reciprocating motion. One end of the swing lever 37 drives the other end of the swing lever 37 and the second blade 32 to make horizontal reciprocating motion while making horizontal reciprocating motion, so as to realize the shearing action between the second blade 32 and the first blade 31, thereby achieving the purpose of cutting off the impurities such as hair on the roller brush hair 22.

[0040] It should be noted that by arranging the roller 371 matched with the cam grooves 36 or the first corrugated grooves at one end of the swing lever 37, when the cam grooves 36 or the first corrugated grooves drive one end of the swing lever 37, the swing lever 37 realizes rolling friction through the cooperation of the roller 371 and the cam grooves 36 or the first corrugated grooves, so as to reduce the friction resistance between the cam grooves 36 or the first corrugated grooves and the swing lever 37.

[0041] As shown in Figure 4 and Figure 5 According to one embodiment of the present application, one side of the first blade 31 is provided with a sliding groove 312, one side of the second blade 32 is provided with a sliding rail 322 matched with the sliding groove 312, and the second blade 32 is tightly attached to the first blade 31 through the sliding rail 322 and the sliding groove 312, as shown in Figure 6 and Figure 7As shown, the bottom of the first blade 31 is provided with a plurality of first sawteeth 311 which are L-shaped, the bottom of the second blade 32 is provided with a plurality of second sawteeth 321 which are L-shaped, and the plurality of second sawteeth 321 are below the plurality of first sawteeth.

[0042] In the embodiment, the second blade 32 is pressed against the first blade 31, so that the second blade 32 can always form a shearing action with the first blade 31 when it is horizontally reciprocated, and the influence of the too large gap between the second blade 32 and the first blade 31 on the shearing effect is reduced. Further, the plurality of second sawteeth 321 are below the plurality of first sawteeth 311, and the second blade 32 forms a plurality of shearing openings with the first blade 31 during the horizontal reciprocation, so that when the hair and other sundries on the rolling brush 22 extend into the plurality of shearing openings, the second blade 32 forms a shearing action with the first blade 31 during the horizontal reciprocation to cut the hair and other sundries in the plurality of shearing openings. Further, the two side surfaces of the second sawteeth 321 and the two side surfaces of the first sawteeth 311 have a certain slope, so that a sharp edge is formed between the second sawteeth 321 and the first sawteeth 311, and the hair can be smoothly cut.

[0043] Further, the above embodiment describes the case that the plurality of second sawteeth 321 are arranged below the plurality of first sawteeth 311 when the rolling brush 20 rotates in the counterclockwise direction, and in other cases, the rolling brush 20 rotates in the clockwise direction, at this time, the plurality of second sawteeth 321 are arranged above the plurality of first sawteeth 311, and this adjustment is within the protection scope of the present application.

[0044] Continuing to refer to Figure 4 , the side of the second blade 32 which is opposite to the rolling brush 20 is provided with a first elastic element 39 which is in contact with the rolling brush shell 10, and the first blade 31 and the second blade 32 are pressed against each other under the elastic force of the first elastic element 39.

[0045] In the embodiment, in order to reduce the influence of the too large gap between the second blade 32 and the first blade 31 on the shearing effect, the second blade 32 is pressed on the first blade 31 by the first elastic element 39, so that the second blade 32 is always kept in the pressed state with the first blade 31 when it is horizontally reciprocated. Further, the side of the second blade 32 which is opposite to the rolling brush 20 is provided with a guide rod which is slidably arranged on the rolling brush shell 10, and the guide rod is sleeved with the first elastic element 39 such as a spring, and the spring always provides a pushing force to the second blade 32 in the direction of the first blade 31 during the sliding of the guide rod relative to the rolling brush shell 10, so that the second blade 32 is pressed against the first blade 31.

[0046] It should be noted that the provision of the pressing force between the second blade 32 and the first blade 31 by the first elastic element 39 is only one embodiment, for example,Figure 5 As shown, the second blade 32 is provided with a magnetic element 39' on the side facing the first blade 31, or the first blade 31 is provided with a magnetic element 39' on the side facing the second blade 32, and the second blade 32 is adsorbed to the first blade 31 by the magnetic element 39', and the adsorption force of the magnetic element 39' can also achieve the close contact effect between the second blade 32 and the first blade 31.

[0047] Continuing to refer to Figure 4 and Figure 5 According to an embodiment of the present application, the second blade 32 is provided with a second elastic element 38 on both ends, which is in contact with the rolling brush shell 10, and the second blade 32 moves horizontally and reciprocally under the joint action of the swing rod 37 and the second elastic element 38.

[0048] In this embodiment, the second elastic element 38 can be a spring or a rubber elastic element, and the elastic force of the second elastic element 38 on the second blade 32 can increase the shearing force between the second blade 32 and the first blade 31, thereby improving the shearing effect of the blade assembly 30 on the hair and other sundries.

[0049] Continuing to refer to Figure 6 and Figure 7 According to an embodiment of the present application, the blade assembly 30 further comprises a reciprocating driving device arranged on the rolling brush shell, the reciprocating driving device is in transmission connection with the second blade 32, and the reciprocating driving device drives the second blade 32 to move horizontally and reciprocally.

[0050] In this embodiment, the reciprocating driving device can be a wax motor or a combination of a driving motor 41 and a transmission mechanism. Specifically, according to an embodiment of the present application, the reciprocating driving device comprises a driving motor 41, a rolling shaft 42 and a lever 43, the rolling shaft 42 is arranged on the output end of the driving motor 41, the outer wall of the rolling shaft 42 is provided with a second corrugated groove 44, one end of the lever 43 is arranged in the second corrugated groove 44, and the other end of the lever 43 is connected with the second blade 32.

[0051] It should be noted that the rolling brush driving motor 33 drives the second blade 32 to move horizontally and reciprocally through the input shaft 35 and the transmission structure, and the reciprocating driving device also drives the second blade 32 to move horizontally and reciprocally, so as long as the movement track of the rolling brush driving motor 33 and the movement track of the reciprocating driving device are set to be consistent, the purpose of the rolling brush driving motor 33 and the reciprocating driving device driving the second blade 32 cooperatively can be achieved, and the movement stability of the second blade 32 can be improved and the phenomenon of jamming of the second blade 32 in the process of moving horizontally and reciprocally can be reduced by driving the second blade 32 by the reciprocating driving device in cooperation with the rolling brush driving motor 33.

[0052] Continuing to refer toFigure 1 The second aspect of the present application also provides a dust collector 100, which comprises the floor brush according to the first aspect of the present application.

[0053] In the present embodiment, the dust collector 100 comprises a standing dust collector and a lying dust collector, and the bottom of the dust collector 100 is provided with a rolling brush shell 10 having a rolling brush chamber. The dust collector 100 is further provided with a dust collecting box in communication with the rolling brush chamber. The dust entering the rolling brush chamber is sucked into the dust collecting box under the suction of the fan. The hair and other sundries adhered to the rolling brush hair 22 are cut off from the rolling brush hair 22 by the blade assembly 30 when passing through the blade assembly 30, so as to reduce the influence of the hair and other sundries adhered to the rolling brush hair 22 on the normal work of the dust collector 100. Further, the blade assembly 30 can be arranged at a dust suction port in the rolling brush chamber in communication with the dust collecting box, so that the cut-off hair can enter the dust collecting box from the dust suction port.

[0054] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed by the present application can be easily conceived by those skilled in the art, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A floor brush characterized in that, The floor brush comprises: a rolling brush shell, in which a rolling brush chamber is arranged; a rolling brush arranged in the rolling brush chamber and in transmission connection with a rolling brush driving motor in the floor brush; a blade assembly comprising a first blade, a swing rod and a second blade, the first blade being arranged on the rolling brush shell and close to the rolling brush, the second blade being close to the first blade, the rolling brush driving motor driving the second blade to make horizontal reciprocating motion relative to the first blade through the swing rod; the rolling brush driving motor is connected with an input shaft through a transmission belt; one end of the swing rod is connected with the input shaft through a transmission structure, the other end of the swing rod is provided with the second blade, and a middle segment of the swing rod is rotatably connected to the rolling brush shell, one end of the swing rod can drive the other end of the swing rod and the second blade to make oscillating reciprocating motion with the middle segment as the rotation center; wherein the transmission structure comprises: cam grooves distributed on the outer wall of the input shaft, one end of the swing rod is provided with a roller matched with the cam grooves, the rolling brush driving motor drives the roller to make up-down reciprocating motion through the cam grooves, the other end of the swing rod is clamped in a clamping groove on the second blade, and the middle segment of the swing rod is rotatably arranged on the rolling brush shell; or, the transmission structure comprises: first corrugated grooves distributed on the outer wall of the input shaft, one end of the swing rod is provided with a roller matched with the first corrugated grooves, the rolling brush driving motor drives the roller to make horizontal reciprocating motion through the first corrugated grooves, the other end of the swing rod is clamped in a clamping groove on the second blade, and the middle segment of the swing rod is rotatably arranged on the rolling brush shell, the first corrugated grooves only limit one end of the swing rod and cannot drive the swing rod to make circumferential motion, the first corrugated grooves contact one end of the swing rod through different positions to drive the swing rod to make horizontal reciprocating motion, and one end of the swing rod drives the other end of the swing rod and the second blade to make horizontal reciprocating motion while making horizontal reciprocating motion.

2. The floor brush of claim 1 wherein, The bottom of the first blade is provided with a plurality of first sawteeth bent in an L shape, the bottom of the second blade is provided with a plurality of second sawteeth bent in an L shape, and the plurality of second sawteeth are located below the plurality of first sawteeth.

3. The floor brush of claim 1 wherein, The bottom of the first blade is provided with a plurality of first sawteeth bent in an L shape, the bottom of the second blade is provided with a plurality of second sawteeth bent in an L shape, and the plurality of second sawteeth are located above the plurality of first sawteeth.

4. The floor brush of claim 1 wherein, One side of the first blade is provided with a sliding groove, one side of the second blade is provided with a sliding rail matched with the sliding groove, and the second blade is close to the first blade through the sliding rail and the sliding groove.

5. The floor brush of claim 4 wherein, One side of the second blade facing away from the rolling brush is provided with a first elastic element in contact with the rolling brush shell, and the first blade and the second blade are close to each other under the elastic force of the first elastic element.

6. The floor brush of claim 4 wherein, One side of the second blade facing the first blade is provided with a magnetic element in magnetic contact with the first blade, or one side of the first blade facing the second blade is provided with a magnetic element in magnetic contact with the second blade, and the second blade is adsorbed to the first blade through the magnetic element.

7. The floor brush of claim 1 wherein, Two ends of the second blade are provided with second elastic elements in contact with the rolling brush shell, and the second blade is horizontally reciprocated under the joint action of the swing rod and the second elastic elements.

8. The floor brush of claim 1 wherein, The blade assembly further comprises a reciprocating driving device arranged on the rolling brush shell, the reciprocating driving device is in transmission connection with the second blade, and the reciprocating driving device drives the second blade to horizontally reciprocate.

9. The floor brush of claim 8 wherein, The reciprocating driving device comprises a driving motor, a rolling shaft and a push rod, the rolling shaft is arranged at the output end of the driving motor, the outer wall of the rolling shaft is provided with a corrugated groove, one end of the push rod is arranged in the corrugated groove, and the other end of the push rod is connected with the second blade.

10. A vacuum cleaner comprising: The dust collector has the ground brush according to any one of claims 1-9.

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