CN211582921U - Floor brush of dust collector and dust collector - Google Patents

Abstract

The utility model provides a scrubbing brush and dust catcher of dust catcher, the roller assembly of the scrubbing brush of dust catcher includes the cylinder and connects the coupling assembling at the cylinder both ends, arbitrary one coupling assembling's connecting axle includes first shaft section, second shaft section and third shaft section, drive assembly include from the driving wheel and with the drive division of being connected from the driving wheel, this first shaft section is connected with roller assembly's cylinder, the second shaft section passes through the bearing with clean subassembly's support frame and is connected, the third shaft section with be connected from the driving wheel, drive division drives from the driving wheel rotation at dust catcher during operation, thereby drive the cylinder through arbitrary connecting axle and rotate. The utility model discloses simplify connection structure between cylinder and the drive assembly for assembly process convenient and fast more between cylinder and the drive assembly also makes cylinder, support frame and drive assembly's the assembly from the driving wheel compacter, has effectively practiced thrift the inner space of casing.

Description

Floor brush of dust collector and dust collector

Technical Field

The utility model relates to a cleaning device technical field especially relates to a scrubbing brush and dust catcher of dust catcher.

Background

The floor brush type dust collector integrates the functions of dust collection and floor mopping, has the advantages of good cleaning effect, high cleaning efficiency and the like, and is popular among many families.

In the prior art, a floor brush type dust collector comprises a host and a floor brush, wherein the host is connected with the floor brush through a conduit. The floor brush comprises a shell and a rolling brush arranged on the shell, and two ends of a rolling shaft of the rolling brush are fixed on the shell through a support frame. The floor brush also comprises a driving mechanism, and the driving mechanism is connected with any one end of the rolling shaft to drive the rolling brush to rotate, so that the floor mopping effect is realized.

However, in the conventional vacuum cleaner, the connection structure between the driving mechanism and the roller is complicated, thereby reducing the assembly efficiency between the driving mechanism and the roller.

SUMMERY OF THE UTILITY MODEL

The utility model provides a scrubbing brush and dust catcher of dust catcher has solved the problem that the connection structure between actuating mechanism and the roller bearing is complicated and influences the assembly efficiency between actuating mechanism and the roller bearing in the current dust catcher.

In order to achieve the above object, in a first aspect, the present invention provides a floor brush of a vacuum cleaner, comprising a housing, and a cleaning assembly and a driving assembly disposed in the housing; the roller assembly in the cleaning assembly comprises a roller and connecting assemblies connected to two ends of the roller, each connecting assembly comprises connecting shafts, each connecting shaft comprises a first shaft section and a second shaft section which are sequentially connected along an axis, the first shaft section is connected to one end of the roller, and the second shaft section is arranged on a supporting frame of the cleaning assembly through a bearing;

the driving assembly comprises a driven wheel and a driving part connected with the driven wheel, any connecting shaft further comprises a third shaft section connected to one end, far away from the first shaft section, of the second shaft section, the third shaft section and the second shaft section are coaxially arranged, and the driven wheel is connected to the third shaft section; the driving part drives the driven wheel to rotate when the cleaning assembly works, so that the roller is driven to rotate through any connecting shaft.

The utility model discloses a set up the connecting axle at the both ends of cylinder to the connecting axle that will be connected with drive assembly sets up to first shaft segment, second shaft segment and the third shaft segment that connects gradually along the axis, and first shaft segment is connected with the one end of cylinder, and the second shaft segment passes through the bearing to be fixed on the support frame, and third shaft segment is connected from the driving wheel with drive assembly. When the dust collector works, the driving part of the driving assembly drives the driven wheel to rotate, so that force is transmitted to the roller through the connecting shaft, the roller is driven to rotate, and the cleaning effect on the cleaning surface is achieved. The utility model discloses a three shaft part of a connecting axle realize respectively with the cylinder, support frame and drive assembly from being connected of driving wheel, connection structure between cylinder and the drive assembly has been simplified, make the assembling process between cylinder and the drive assembly convenient and fast more, and, the setting of this connecting axle also makes the assembly from the driving wheel of cylinder assembly and drive assembly compacter, the inner space of casing has effectively been practiced thrift, thereby the area of the clean area on the cylinder assembly is established with the increase cover to the quantity etc. of accessible increase cylinder and cylinder, thereby improve the clean efficiency of clean subassembly.

Optionally, the drum is a hollow structure;

the connecting component further comprises a connector, the connector is inserted into one end of the roller, and the first shaft section of the connecting shaft is inserted into the connector and coaxially arranged with the connector.

Through setting up the cylinder into hollow structure, when guaranteeing the area of contact on the cleaning zone on the cylinder and ground, alleviateed the whole quality of dust catcher to make the user more convenient to the operations such as taking and push-and-pull of dust catcher, and then improved clean efficiency. And simultaneously, the utility model discloses an one end at the cylinder is pegged graft a connector to peg graft the first shaft section of connecting axle in this connector, so set up, the joint strength between the first shaft section of connecting axle and the cylinder has been strengthened on the one hand, on the other hand has also reduced the ascending occupation space of cylinder in the axis direction of cylinder with the connecting axle assembly back, make cylinder and connecting axle structure in the axis direction compacter, thereby for drive assembly's the assembly from the driving wheel provides effectual assembly space, make drive assembly's assembly more convenient.

Optionally, the connecting head includes a first portion and a second portion connected in sequence along an axial direction, the first shaft section is inserted into the first portion, and an inner diameter of the second portion is larger than an inner diameter of the first portion.

The utility model discloses a set up the connector and do not set up the internal diameter of the part of first shaft section into being greater than the partial internal diameter that is provided with first shaft section, that is to say that the lateral wall thickness of the second part of connector is less than the lateral wall thickness of first part, like this. When the contact area between the outer side wall of the connector and the inner side wall of the roller is ensured, the material for the connector is saved, the manufacturing cost of the floor brush is reduced, the weight of the floor brush is reduced, and therefore user experience is improved.

Optionally, at least part of the outer side wall of the first shaft segment is engaged with the inner side wall of the connector;

and/or at least part of the outer side wall of the connecting head is meshed with the inner side wall of the roller.

The outer side wall of the first shaft section is connected with the inner side wall of the connector in a meshed mode, so that the connection strength of the first shaft section and the connector is improved, the connector can synchronously and stably rotate when the driving assembly drives the first shaft section of the connecting shaft to rotate, and the connecting structure between the first shaft section and the connector is simplified, so that the first shaft section and the connector can be assembled more conveniently. In a similar way, the outer side wall of the connector is connected with the inner side wall of the roller in a meshing mode, the connection strength of the connector and the roller is guaranteed, and meanwhile, the connection structure between the connector and the roller is simplified, so that the assembly efficiency between the connector and the roller is improved.

Optionally, the inner side wall of the roller and the outer side wall of the connector have matching concave-convex structures.

The utility model discloses a lateral wall at the inside wall of cylinder and connector sets up concave-convex structure, skids when avoiding connector and cylinder to rotate and influences the normal rotation of cylinder.

Optionally, the concave-convex structure comprises at least one protrusion and a groove matched with the protrusion;

the protrusion is positioned on the inner side wall of the roller, and the groove is positioned on the outer side wall of the connector; or the protrusion is positioned on the outer side wall of the connector, and the groove is positioned on the inner side wall of the roller.

The arrangement mode ensures that the connecting head and the roller cannot slip when rotating, and simultaneously improves the mechanical strength of the roller.

Optionally, the outer side wall of the second shaft section extends to a direction away from the axis of the connecting shaft to form a protruding part;

the bearing sleeve is arranged on one side of the protruding portion, which deviates from the first shaft section.

The utility model discloses a set up the bulge on the outer wall of second axle section to the fixed position to the bearing restricts, as long as guarantee the bottom butt of this bearing promptly on the bulge, alright realize the bearing at the epaxial quick location of connecting, simultaneously, the setting of this bulge has also prevented that the bearing from taking place because of the condition that the direction of external force etc. toward first axle section constantly squints and breaks away from the support frame.

Optionally, one side of the protruding portion, which faces away from the bearing, abuts against the end face of the connecting head.

Above-mentioned mode of setting up has effectively avoided the second shaft section and the third shaft section of connecting axle to the direction skew of connector and influence the cooperation between second shaft section and the bearing and the cooperation between third shaft section and the follow driving wheel to improved the connection structure's between cylinder and the drive assembly steadiness, and then ensured the stable drive of drive assembly to the cylinder.

Optionally, the number of the convex parts is multiple, and the convex parts are arranged at intervals around the axis of the second shaft section;

alternatively, the protrusion is a ring-shaped member annularly arranged on the outer wall of the second shaft section.

Through setting up a plurality of bulges at the outer wall of second axle section along circumference interval, when guaranteeing the spacing effect to the bearing, saved the quantity of bulge to the cost of manufacture of connecting axle has been reduced, and the quality of connecting axle has been alleviateed. The protruding part can be arranged to be an annular part annularly arranged on the second shaft section, so that the structure of the second shaft section is simplified, the manufacturing efficiency of the connecting shaft is improved, and meanwhile, the limiting effect on the bearing is further improved.

Optionally, at least part of the side wall of the third shaft segment is configured to include opposite arc-shaped faces and flat faces, and one end of the arc-shaped faces and the flat faces penetrates through the end of the first shaft segment away from the second shaft segment;

the inner wall of the driven wheel is provided with an arc-shaped side wall matched with the arc-shaped surface and a plane side wall matched with the plane.

By arranging at least part of the side wall of the third shaft section in the manner, on one hand, the third shaft section can be stably matched with the driven wheel, so that the third shaft section and the driven wheel can synchronously rotate in the rotation process of the driven wheel, namely, the driven wheel can more stably drive the third shaft section to rotate in the driving process of the driving assembly, and the stable rotation of the roller is ensured; on the other hand, the connecting structure between the driven wheel and the third shaft section is simplified, namely, the shape of the matching position of the third shaft section and the driven wheel is changed without additionally arranging a connecting part, so that the stable connection between the third shaft section and the driven wheel can be realized, the setting cost is saved, and the assembly efficiency is improved.

Optionally, the roller assembly further comprises a sleeve, the sleeve is sleeved outside the roller, the inner side wall of the sleeve is abutted to the outer side wall of the roller, and the outer side wall of the sleeve is in contact with the inner side wall of the cleaning belt of the cleaning assembly.

The sleeve is additionally arranged between the cleaning belt and the roller, and the sleeve is arranged to prevent the cleaning belt and the roller from slipping, so that the cleaning belt and the roller can be ensured to synchronously rotate.

Optionally, the end of the connector has a stop part, and the stop part partially extends out of the roller and abuts against at least part of the end of the roller.

The arrangement mode further limits the relative movement of the roller and the connecting head, so that the connecting head is more stably fixed at one end of the roller.

In a second aspect, the utility model also provides a dust collector, which comprises a dust collector body and the floor brush of the dust collector connected with the dust collector body.

The scrubbing brush of dust catcher through setting up the dust catcher, the roller bearing of the scrubbing brush of dust catcher is realized respectively with the cylinder through the three shaft part of a connecting axle, support frame and drive assembly from the connection of driving wheel, connection structure between cylinder and the drive assembly has been simplified, make assembling process between cylinder and the drive assembly convenient and fast more, and, the setting of this connecting axle also makes the cylinder, support frame and drive assembly from the assembly of driving wheel compacter, the inner space of scrubbing brush casing has effectively been practiced thrift, thereby the accessible increases the area in order to increase the clean area such as the external diameter of cylinder and the quantity of cylinder, thereby improve the cleaning efficiency of dust catcher.

The structure of the present invention and other objects and advantages thereof will be more clearly understood from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a floor brush of a vacuum cleaner according to an embodiment of the present invention;

FIG. 2 is a schematic view of the cleaning assembly of FIG. 1;

FIG. 3 is a schematic view of the internal structure of FIG. 2;

FIG. 4 is a schematic structural view of the connecting shaft of FIG. 3;

FIG. 5 is a schematic view of a portion of the structure of FIG. 3;

FIG. 6 is a cross-sectional view A-A of FIG. 3;

FIG. 7 is a partial method diagram at A of FIG. 6;

fig. 8 is a schematic view of the internal structure of the driven wheel in fig. 3.

Description of reference numerals:

100-a housing;

200-a cleaning assembly;

210-a support frame;

211-a bearing;

220-a roller assembly;

221-a roller;

2211-projection;

222-a connection assembly;

2221-a linker axis;

2221 a-first shaft segment;

2221 b-second shaft section;

2221 c-third shaft segment;

2221 d-projection;

2221 e-arc-shaped face;

2221 f-plane;

2222-connecting head;

2222 a-first portion;

2222 b-second part;

2222 c-stop;

2222 d-groove;

223-a sleeve;

230-a driven wheel;

231-curved sidewalls;

232-planar sidewalls.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

FIG. 1 is a schematic structural view of a floor brush of a vacuum cleaner according to an embodiment; FIG. 2 is a schematic view of the cleaning assembly of FIG. 1; FIG. 3 is a schematic view of the internal structure of FIG. 2; FIG. 4 is a schematic structural view of the connecting shaft of FIG. 3; FIG. 5 is a schematic view of a portion of the structure of FIG. 3; FIG. 6 is a cross-sectional view A-A of FIG. 3; FIG. 7 is a partial method diagram at A of FIG. 6; fig. 8 is a schematic view of the internal structure of the driven wheel in fig. 3. Referring to fig. 1 to 8, the present embodiment provides a floor brush of a vacuum cleaner, including a housing 100, and a cleaning assembly 200 and a driving assembly provided in the housing 100; the cleaning assembly 200 includes a supporting frame 210, a cleaning belt (not shown) having a ring shape, and a roller assembly 220, wherein both ends of the roller assembly 220 are positioned on the supporting frame 210, and the cleaning belt is wound around the roller assembly 220.

Referring to fig. 1 and 2, in particular, the casing 100 may be a hollow box body, a cleaning assembly 200 is disposed inside the box body, both ends of a roller assembly of the cleaning assembly 200 are supported on supporting frames 210, and the supporting frames 210 are fixed on the casing 100. In order to facilitate mopping by using the cleaning assembly 200, an opening is formed at the bottom of the box body, and a part of the cleaning assembly 200 extends out of the outer side of the box body through the opening so that the cleaning assembly 200 can mop. The driving assembly is fixed in the housing 100, connected with the cleaning assembly 200, and drives the roller assembly 220 of the cleaning assembly 200 to rotate through the driving assembly, so as to drive the cleaning belt on the roller assembly 220 to continuously rub against the cleaning surface, thereby realizing the floor mopping operation of the dust suction floor.

It is understood that, in order to realize the rotation of the roller assembly 220, both ends of the roller assembly 220 are movably connected to the supporting frame 210, for example, the roller assembly 220 may be fixed on the supporting frame 210 by a bearing.

It should be noted that, the number of the roller assemblies 220 in the cleaning assembly 200 of this embodiment may be 1, that is, two ends of 1 roller assembly are respectively fixed on the supporting frame 210 through bearings, the cleaning belt is sleeved on one roller assembly 220, and when the vacuum cleaner is in operation, the driving assembly drives the roller assembly 220 to rotate, so as to drive the cleaning belt to rotate, and friction between the cleaning belt and the cleaning surface is achieved.

Of course, in some examples, the number of the roller assemblies 220 may also be 2, two roller assemblies 220 are arranged on the supporting frame 210 at intervals side by side, and the cleaning belt is wound around the two roller assemblies 220. The driving assembly can be connected with any one of the two roller assemblies 220 to drive one of the roller assemblies 220 to rotate, so that the other roller assembly 220 is driven to rotate by the cleaning belt, the stable rotation of the cleaning belt is further realized, and the cleaning work of the cleaning surface is completed, as shown in fig. 2. In this example, the cleaning belt is supported by the two roller assemblies 220, so that the contact area of the cleaning belt with the ground is increased, the floor brush of the dust collector is in surface contact with the ground when in work, and the floor mopping efficiency is improved. The embodiment specifically takes the cleaning assembly 200 composed of two roller assemblies 220 as an example for explanation.

Referring to fig. 3, 4 and 5, the drum assembly 220 of the present embodiment includes a drum 221 and a connection assembly 222 connected to both ends of the drum 221, the connection assembly 222 includes connection shafts 2221, and each connection shaft 2221 includes a first shaft section 2221a and a second shaft section 2221b connected in sequence along an axis. The first shaft section 2221a is connected to one end of the drum 221, and the second shaft section 2221b is disposed on the bearing 211 in the support frame 210, in other words, both ends of the drum 221 are movably fixed on the support frame 210 through the second shaft section 2221b of the connecting shaft 2221, so that the connecting shafts 2221 at both ends of the drum 221 can rotate in the support frame 210.

The driving assembly of the present embodiment includes a driven wheel 230 and a driving part connected to the driven wheel 230, any connecting shaft 2221 further includes a third shaft section 2221c connected to one end of the second shaft section 2221b far from the first shaft section 2221a, the third shaft section 2221c is coaxially arranged with the second shaft section 2221b, and the driven wheel 230 is connected to the third shaft section 2221 c; the driving part drives the driven pulley 230 to rotate when the cleaning assembly 200 is operated, thereby driving the drum 221 to rotate through any one of the connection shafts 2221. The driving portion may be a gear driving assembly, a belt driving assembly, or a sprocket driving assembly, and the embodiment is not limited herein.

Specifically, in the present embodiment, any one of the connection shafts 2221 in the roller assembly 220 is configured to include a first shaft section 2221a, a second shaft section 2221b and a third shaft section 2221c, which are sequentially connected along an axis, wherein the first shaft section 2221a is connected with the roller 221, the second shaft section 2221b is fixed on the supporting frame 210 through the bearing 211, and the third shaft section 2221c located outside the supporting frame 210 is connected with the driven wheel 230 of the driving assembly, so that the driving part of the driving assembly drives the driven wheel 230 to rotate, and thus, the acting force is transmitted to the roller 221 through the third shaft section 2221c of the connection shaft 2221, thereby achieving the rotation of the roller 221.

Specifically, when there is one roller assembly 220, a connecting shaft 2221 having only a first shaft section 2221a and a second shaft section 2221b is disposed at one end of the roller 221 of the roller assembly 220, so that the end is movably fixed in the supporting frame 210 through the second shaft section 2221b of the connecting shaft 2221, and a connecting shaft 2221 having a first shaft section 2221a, a second shaft section 2221b and a third shaft section 2221c is disposed at the other end of the roller 221 of the roller assembly 220, so that the end is connected to the driven wheel 230 of the driving assembly through the third shaft section 2221c of the connecting shaft 2221, so that the roller 221 is driven to rotate by the driving assembly.

When there are two roller assemblies 220, a connecting shaft 2221 having only a first shaft section 2221a and a second shaft section 2221b is disposed at both ends of one roller 221 of the two rollers 221, so that both ends of the roller 221 are movably fixed in the supporting frame 210 through the second shaft section 2221b of the connecting shaft 2221, that is, the roller 221 is a driven roller. At one end of the other roller 221, there is only a connecting shaft 2221 having a first shaft section 2221a and a second shaft section 2221b, so that the end is movably fixed in the supporting member 210, and at the other end, there is a connecting shaft 2221 having a first shaft section 2221a, a second shaft section 2221b, and a third shaft section 2221c, so that the end is connected to the driven wheel 230 of the driving assembly through the third shaft section 2221c of the connecting shaft 2221, so that the roller 221 is driven to rotate by the driving assembly, that is, the other roller 221 is a driving roller. During operation, the driving roller is driven by the driving assembly to rotate, and the other driven roller is driven to rotate under the action of friction force transmission of the cleaning belt, so that the two rollers 221 are stably rotated, the cleaning belt is continuously contacted with a cleaning surface, and the mopping efficiency is improved.

It is understood that when the number of the rollers 221 is 2, the connection shaft 2221 provided with the first shaft section 2221a, the second shaft section 2221b and the third shaft section 2221c may be provided at one end of any one of the two rollers 221. When the number of the drum 221 is 1, the connection shaft 2221 provided with the first shaft section 2221a, the second shaft section 2221b and the third shaft section 2221c may be provided at any one end of the drum 221 as long as the normal driving of the drum 221 by the driving assembly can be ensured.

Based on the above, in the present embodiment, the connection with the roller 221, the supporting frame 210 and the driven wheel 230 of the driving assembly is respectively realized through three shaft segments of one connecting shaft 2221, so that the connection structure between the roller 221 and the driving assembly is simplified, and the assembly process between the roller 221 and the driving assembly is more convenient and faster.

In addition, the arrangement of the connecting shaft 2221 also makes the assembly of the roller 221, the supporting frame 210 and the driven wheel 230 of the driving assembly more compact, effectively saving the internal space of the housing 100, so that the area of the cleaning belt can be increased by increasing the outer diameter of the roller 221, the number of the rollers 221 and the like, thereby improving the cleaning efficiency of the cleaning assembly 200.

Wherein, this cylinder 221 can set up to hollow structure, and the cylinder 221 is the hollow tube promptly, like this, when increasing the area of contact of cleaning zone and ground, reduces the whole weight of dust catcher, has improved user's experience and has felt.

In a specific implementation, the roller 221 may be tubular, and two ends of the tubular roller 221 are respectively connected to a connection assembly 222, and are connected to the supporting frame 210 through the connection assembly 222, so that the supporting frame 210 supports the roller assembly 220. The roller 221 and the driven pulley 230 of the driving assembly are connected by either one of the connecting assemblies 222 so that the driving assembly drives the cleaning belt to rotate by either one of the connecting assemblies 222. The roller 221 may be a plastic pipe, an aluminum pipe, or other pipe with different materials, which is not limited herein.

Referring to fig. 3 and 5, the connecting assembly 222 of this embodiment further includes a connecting head 2222, the connecting head 2222 is inserted into one end of the drum 221, a first shaft section 2221a of the connecting shaft 2221 is inserted into the connecting head 2222 and is coaxially disposed with the connecting head 2222, a second shaft section 2221b of the connecting shaft 2221 is fixed on the supporting frame 210 through a bearing 211, and the connecting shaft 2221 having a third shaft section 2221c passes through the supporting frame 210 and is connected to the driven wheel 230 of the driving assembly.

Taking the roller 221 to which the driving assembly is connected as an example, the driving assembly is connected to the connecting assembly 222 having the third shaft section 2221c of the two connecting assemblies 222 on one roller 221, and for convenience of description, the connecting assembly 222 connected to the driving assembly will be referred to as a first connecting assembly 222 hereinafter. The driven wheel 230 of the driving assembly is connected to the third shaft 2221c of the rotating shaft 2221 of the first connecting assembly 222, the driving assembly drives the first rotating shaft 2221 to rotate, when the first rotating shaft 2221 rotates, the connecting head 2222 is driven to rotate, the connecting head 2222 drives the cleaning belt to rotate through the roller 221, and after the cleaning belt rotates, the second roller 221 is driven to rotate, so that the cleaning belt can be smoothly mopped.

In this embodiment, a connector 2222 is inserted into one end of the roller 221, and the first shaft section 2221a of the connecting shaft 2221 is inserted into the connector 2222, so that the connection strength between the first shaft section 2221a of the connecting shaft 2221 and the roller 221 is enhanced, and the occupied space in the axial direction of the roller 221 after the roller 221 and the connecting shaft 2221 are assembled is reduced, so that the structures of the roller 221 and the connecting shaft 2221 in the axial direction are more compact, an effective assembly space is provided for the assembly of the driven wheel 230 of the driving assembly, and the assembly of the driving assembly is more convenient.

Of course, in other examples, the connection head 2222 may be sleeved on the end of the roller 221, and when the cleaning belt is wound around the two rollers 221, the inner side wall of the cleaning belt contacts the outer side wall of the connection head 2222, that is, when the roller 221 rotates, the connection heads 2222 at the two ends of the roller 221 contact the cleaning belt. This embodiment does not exclude this connection.

When the first shaft section 2221a of the connecting shaft 2221 is connected to the connecting head 2222, a tooth-shaped groove may be formed on an outer side wall of the first shaft section 2221a, as shown in fig. 4 and 5. Meanwhile, a toothed groove is also formed in the inner side wall of the connector 2222, so that the connecting shaft 2221 and the connector 2222 are meshed and connected through the toothed groove, and therefore, the connection strength between the first shaft section 2221a and the connector 2222 is improved, the connector can synchronously and stably rotate when the driving component drives the first shaft section 2221a of the connecting shaft 2221 to rotate, the connection structure between the first shaft section 2221a and the connector 2222 is simplified, and the first shaft section 2221a and the connector 2222 are more convenient to assemble. It can be understood that a part of the side wall of the first shaft section 2221a of the connection shaft 2221 may be provided with a toothed groove, and all the outer side walls of the first shaft section 2221a may also be provided with a toothed groove, so as to further ensure that the first shaft section 2221a and the connection head 2222 rotate synchronously.

Likewise, at least a portion of the outer sidewall of the connector 2222 may be engaged with the inner sidewall of the drum 221, so that the connection strength between the connector 2222 and the drum 221 is ensured, and the connection structure between the connector 2222 and the drum 221 is simplified, thereby improving the assembly efficiency between the connector 2222 and the drum 221.

Referring to fig. 5, the connector 2222 includes a first portion 2222a and a second portion 2222b connected in sequence along the axial direction, the first shaft section 2221a of the connecting shaft 2221 is inserted into the first portion 2222a, and the inner diameter of the second portion 2222b is greater than the inner diameter of the first portion 2222a, that is, the inner diameter of the portion of the connector 2222 where the first shaft section 2221a is not disposed is greater than the inner diameter of the portion where the first shaft section 2221a is disposed, in other words, the thickness of the sidewall of the second portion 2222a of the connector 2222 is less than the thickness of the sidewall of the first portion 2222b, so that while the contact area between the outer sidewall of the connector 2222 and the inner sidewall of the drum 221 is ensured, the material used for the connector 2222 is saved, the manufacturing cost of the floor brush is reduced, and the weight of the floor brush is reduced, thereby improving the user experience.

When the connector 2222 is inserted into the drum 221, the drum 221 is driven to rotate by the connector 2222, that is, the connector 2222 and the drum 221 are required to rotate, so as to avoid slippage when the connector 2222 and the drum 221 rotate. In the floor brush of the vacuum cleaner provided by this embodiment, the inner sidewall of the roller 221 and the outer sidewall of the connector 2222 have matching concave-convex structures. Referring to fig. 6 and 7, in the present embodiment, the roller 221 is driven to rotate by the connector 2222, and the inner sidewall of the roller 221 contacts the outer sidewall of the connector 2222, so that the concave-convex structure is disposed on the inner sidewall of the roller 221 and the outer sidewall of the connector 2222, thereby preventing the normal rotation of the roller 221 from being affected by the slip of the connector 2222 and the roller 221 when rotating.

Specifically, the concave-convex structure includes at least one protrusion 2211 and a groove 2222d matched with the protrusion 2211. Groove 2222d may be rectangular, arc, triangular, dovetail-shaped, or other irregular shape, and correspondingly, projection 2211 may be rectangular, arc, triangular, dovetail-shaped, or other irregular shape matching groove 2222 d.

Wherein, the protrusion 2211 is located on the inner side wall of the drum 221, and the groove 2222d is located on the outer side wall of the connector 2222. Alternatively, the projection 2211 is located on the outer side wall of the connection head 2222, and the groove 2222d is located on the inner side wall of the drum 221. As long as the protrusion 2211 is matched with the groove 2222d to prevent the connection head 2222 and the roller 221 from slipping during rotation, the embodiment is not limited herein.

In a specific implementation, in order to avoid lowering the strength of the drum 221, the protrusion 2211 is provided on the inner sidewall of the drum 221. The groove 2222d is disposed along the outer sidewall of the connector 2222, two ends of the groove 2222d are connected to the outer sidewall of the connector 2222, the protrusion 2211 may be disposed on a part of the inner sidewall of the roller 221, that is, the protrusion 2211 is disposed on a part of the inner sidewall of the roller 221, which is in contact with the outer sidewall of the connector 2222, or the protrusion 2211 may be disposed on the inner sidewall of the roller 221, which is not in contact with the connector 2222, that is, the extending direction of the protrusion 2211 is parallel to the axial direction of the roller 221, and one end of the protrusion 2211 to the roller 221 extends to the other end of.

Specifically, to facilitate insertion of projection 2211 into groove 2222d, a chamfer may be provided on the edge of projection 2211. Wherein, the chamfer angle can be a round angle or a bevel angle.

A plurality of projections 2211 and grooves 2222d may also be provided, and when the number of projections 2211 and grooves 2222d is multiple, the projections 2211 are uniformly spaced, and correspondingly, the grooves 2222d are also uniformly spaced. Thus, when the connection head 2222 drives the roller 221, the connection head 2222 and the roller 221 can be uniformly stressed.

Referring to fig. 4, in the present embodiment, a protruding portion 2221d extends from an outer side wall of the second shaft section 2221b of the connecting shaft 2221 in a direction away from an axis of the connecting shaft 2221, and the bearing 211 is sleeved on a side of the protruding portion 2221d away from the first shaft section 2221 a.

In practical applications, a mounting hole is usually formed in the support frame 210, a bearing 211 is installed in the mounting hole, the connecting shaft 2221 is inserted into the mounting hole, and when the end of the bearing 211 facing the drum 221 just abuts against the projection 2221d during the process of installing the connecting shaft 2221, the second section 2221b of the connecting shaft 2221 is installed in place with the support frame 210. It can be seen that the second shaft section 2221b of the connecting shaft 2221 can be quickly assembled to the bearing 211 of the support bracket 210, and from another perspective, the projection 2221d is configured to allow for quick positioning of the bearing 211 on the connecting shaft 2221.

In addition, the protrusion prevents the bearing 211 from being separated from the supporting bracket 210 due to the external force or the like, which is continuously shifted toward the first shaft section 2221 a.

Further, after the second shaft section 2221b of the connecting shaft 2221 is assembled to the bearing 211, one side of the protruding portion 2221d facing away from the bearing 211 abuts against an end surface of the connecting head 2222, so as to prevent the second shaft section 2221b and the third shaft section 2221c of the connecting shaft 2221 from deviating towards the connecting head 2222 to affect the matching between the second shaft section 2221b and the bearing 211 and the matching between the third shaft section 2221c and the driven wheel 230, thereby improving the stability of the connecting structure between the roller 221 and the driving assembly, and further ensuring the stable driving of the driving assembly on the roller 221.

When the arrangement is specific, the number of the protruding portions 2221d can be multiple, and the plurality of protruding portions 2223 are arranged at intervals around the axis of the second shaft section 2221b, so that the limiting effect on the bearing 211 is guaranteed, and meanwhile, the using amount of the protruding portions 2221d is saved, so that the manufacturing cost of the connecting shaft 2221 is reduced, and the quality of the connecting shaft 2221 is reduced.

Of course, in some examples, the protruding portion 2221d is a ring-shaped member annularly disposed on the outer wall of the second shaft section 2221b, as shown in fig. 4, so as to simplify the structure of the second shaft section 2221b, improve the manufacturing efficiency of the connecting shaft 2221, and further improve the limiting effect on the bearing 211.

With continued reference to fig. 4 and 8, at least a portion of the side walls of the third shaft section 2221c are configured to include an arc-shaped surface 2221e and a plane 2221f opposite to each other, and one end of the arc-shaped surface 2221e and the plane 2221f penetrates through the end of the first shaft section 2221a far from the second shaft section 2221b, i.e., the end surface of the third shaft section 2221c is shaped like a "D", the inner wall of the driven wheel 230 has an arc-shaped side wall 231 matching the arc-shaped surface 2221e and a plane side wall 232 matching the plane 2221f, i.e., the inner cavity cross-section of the driven wheel 230 is also shaped like a "D". During specific assembly, the third shaft 2221c is inserted into the driven wheel 230, the arc-shaped surface 2221e of the third shaft 2221c abuts against the arc-shaped side wall 231 of the driven wheel 230, and the plane 2221f of the third shaft 2221c abuts against the plane side wall 232 of the driven wheel 230, so that when the driving part of the driving assembly drives the driven wheel 230 to rotate, the third shaft 2221c also rotates synchronously, and further drives the roller 221 to rotate stably.

The above-mentioned matching manner between the driven wheel 230 and the third shaft section 2221c enables the third shaft section 2221c and the driven wheel 230 to be stably matched, so that the third shaft section 2221c and the driven wheel 230 rotate synchronously in the rotation process of the driven wheel 230, that is, the driven wheel 230 can drive the third shaft section 2221c to rotate more stably in the driving process of the driving assembly, thereby ensuring the stable rotation of the drum 221; on the other hand, the connection structure between the driven wheel 230 and the third shaft section 2221c is simplified, that is, only the shapes of the fitting positions of the third shaft section 2221c and the driven wheel 230 are changed, and no additional connecting component is required, so that the stable connection between the third shaft section 2221c and the driven wheel 230 can be realized, the setting cost is saved, and the assembly efficiency is improved.

Referring to fig. 6, the roller assembly further includes a sleeve 223, the sleeve 223 is sleeved on the outer side of the roller 221, the inner side wall of the sleeve 223 is abutted against the outer side wall of the roller 221, and the outer side wall of the sleeve 223 is in contact with the inner side wall of the cleaning belt.

Specifically, a sleeve 223 is added between the cleaning belt and the roller 221, and the sleeve 223 prevents slipping between the cleaning belt and the roller 221, so that the cleaning belt and the roller 221 rotate synchronously. In particular implementations, the outer sidewall of the drum 221 may be encapsulated to form a sleeve 223. That is, a rubber sheet is adhered to the outer sidewall of the drum 221 to form the sleeve 223. The rubber plate has good wear resistance, tensile resistance and tear resistance, and prevents the roller 221 from being worn. Meanwhile, the rubber plate is provided with patterns, so that slipping between the cleaning belt and the roller 221 is avoided, and deviation and abrasion of the cleaning belt are reduced.

Referring to fig. 3 and 5, the end of the connecting head 2222 has a stop portion 2222c, and the stop portion 2222c partially extends out of the drum 221 and abuts against at least part of the end of the sleeve 223.

Specifically, the stop portion 2222c may be annular, and the stop portion 2222c may also be at least one baffle perpendicular to the end of the connector 2222. By providing the stopping portion 2222c, the stopping portion 2222c abuts against at least a part of the end of the sleeve 223 to limit the relative movement between the drum 221 and the connecting head 2222, so that the connecting head 2222 is more stably fixed at one end of the drum 221.

The embodiment also provides a dust collector which comprises a dust collector body and a floor brush which is connected with the dust collector body and is provided with the dust collector.

The structure and the working principle of the floor brush of the dust collector are explained in detail in the above embodiments, which are not described in detail herein.

The vacuum cleaner body further includes a power supply, a connecting wire, a blower, and other conventional components for implementing the vacuum function of the vacuum cleaner, which is not limited herein.

The dust collector of the embodiment is provided with the floor brush of the dust collector, the roller 221 of the floor brush of the dust collector is respectively connected with the roller 221, the support frame 210 and the driven wheel 230 of the driving component through three shaft sections of one connecting shaft 2221, the connecting structure between the roller 221 and the driving component is simplified, so that the assembling process between the roller 221 and the driving component is more convenient and faster, and the arrangement of the connecting shaft 2221 also enables the assembly of the roller 221, the support frame 210 and the driven wheel 230 of the driving component to be more compact, the internal space of the floor brush shell is effectively saved, the area of a cleaning belt can be increased by increasing the outer diameter of the roller 221, the number of the rollers 221 and the like, and the cleaning efficiency of the dust collector is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (13)

1. A floor brush of a vacuum cleaner is characterized by comprising a shell (100), a cleaning component (200) arranged in the shell (100) and a driving component; the roller assembly (220) in the cleaning assembly (200) comprises a roller (221) and connecting assemblies (222) connected to two ends of the roller (221), each connecting assembly (222) comprises a connecting shaft (2221), each connecting shaft (2221) comprises a first shaft section (2221a) and a second shaft section (2221b) which are sequentially connected along an axis, the first shaft section (2221a) is connected to one end of the roller (221), and the second shaft section (2221b) is arranged on a supporting frame (210) of the cleaning assembly (200) through a bearing (211);

the driving assembly comprises a driven wheel (230) and a driving part connected with the driven wheel (230), any connecting shaft (2221) further comprises a third shaft section (2221c) connected to one end, away from the first shaft section (2221a), of the second shaft section (2221b), the third shaft section (2221c) and the second shaft section (2221b) are coaxially arranged, and the driven wheel (230) is connected to the third shaft section (2221 c); the driving part drives the driven wheel (230) to rotate when the cleaning assembly (200) works, so that the roller (221) is driven to rotate through any connecting shaft (2221).

2. A floor brush of a vacuum cleaner according to claim 1, characterized in that the drum (221) is of a hollow structure;

the connecting assembly (222) further comprises a connector (2222), the connector (2222) is inserted into one end of the roller (221), and a first shaft section (2221a) of the connecting shaft (2221) is inserted into the connector (2222) and is coaxially arranged with the connector (2222).

3. A brush according to claim 2, wherein said connector (2222) comprises a first portion (2222a) and a second portion (2222b) connected in series in the axial direction, said first shaft section (2221a) being inserted into said first portion (2222a), and said second portion (2222b) having an inner diameter larger than that of said first portion (2222 a).

4. A brush according to claim 2, wherein at least part of the outer side wall of the first shaft section (2221a) engages with the inner side wall of the connection head (2222);

and/or at least part of the outer side wall of the connecting head (2222) is engaged with the inner side wall of the roller (221).

5. A floor brush of a vacuum cleaner as claimed in claim 2, wherein the inner sidewall of the drum (221) and the outer sidewall of the connection head (2222) have matching concavo-convex structures.

6. A brush according to claim 5, wherein said relief comprises at least one protrusion (2211) and a groove (2222d) matching said protrusion (2211);

the protrusion (2211) is positioned on the inner side wall of the roller (221), and the groove (2222d) is positioned on the outer side wall of the connecting head (2222); or the protrusion (2211) is positioned on the outer side wall of the connecting head (2222), and the groove (2222d) is positioned on the inner side wall of the roller (221).

7. A brush according to any of claims 2-6, wherein the second shaft section (2221b) has an outer side wall with a protrusion (2221d) extending away from the axis of the connecting shaft (2221);

the bearing (211) is sleeved on one side of the protruding portion (2221d) deviating from the first shaft section (2221 a).

8. A brush according to claim 7, wherein the side of the projection (2221d) facing away from the bearing (211) abuts against the end face of the connection head (2222).

9. A floor brush according to claim 7, characterized in that the number of the protrusions (2221d) is plural, and a plurality of the protrusions (2221d) are arranged at intervals around the axis of the second shaft section (2221 b);

alternatively, the projection (2221d) is a ring-shaped member annularly provided on the outer wall of the second shaft section (2221 b).

10. A brush according to any of claims 1-6, wherein at least part of the side wall of the third shaft section (2221c) is configured to comprise an opposite arc-shaped surface (2221e) and a plane surface (2221f), and one end of the arc-shaped surface (2221e) and the plane surface (2221f) extends through the end of the first shaft section (2221a) remote from the second shaft section (2221 b);

the inner wall of the driven wheel is provided with an arc side wall (231) matched with the arc surface (2221e) and a plane side wall (232) matched with the plane (2221 f).

11. The floor brush of the vacuum cleaner as claimed in any one of claims 2 to 6, wherein the drum assembly further comprises a sleeve (223), the sleeve (223) is sleeved outside the drum (221), an inner sidewall of the sleeve (223) abuts against an outer sidewall of the drum (221), and an outer sidewall of the sleeve (223) contacts with an inner sidewall of the cleaning belt of the cleaning assembly (200).

12. A brush according to claim 11, characterized in that the end of the connector (2222) has a stop (2222c), said stop (2222c) partly protruding outside the drum (221) and abutting at least part of the end of the sleeve (223).

13. A vacuum cleaner comprising a cleaner body and a floor brush of the vacuum cleaner as claimed in any one of claims 1 to 12 attached to the cleaner body.

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