CN219109301U

CN219109301U - Rolling brush assembly and ground brush

Info

Publication number: CN219109301U
Application number: CN202223355132.5U
Authority: CN
Inventors: 程东彪; 刘桐; 汤天斌; 张申典
Original assignee: Anker Innovations Co Ltd
Current assignee: Anker Innovations Co Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-02
Anticipated expiration: 2032-12-13

Abstract

The utility model provides a rolling brush assembly and a ground brush, wherein the rolling brush assembly comprises an end cover and a sealing piece, the end cover is provided with a lower edge which faces to a surface to be cleaned in an operating state, the lower edge at least partially extends along the same straight line so as to be parallel to the surface to be cleaned when the end cover is in the operating state, the end cover is used for being detachably connected to a first side part of a ground brush shell, the end cover connected to the first side part covers a side opening, and the lower edge is positioned at the lower opening; the sealing element is connected to the end cover and at least covers the outer part of the lower edge so as to seal the gap between the lower edge in the working state and the surface to be cleaned. The lower edge of the end cover is arranged to extend at least partially along the same straight line and is connected with the sealing element, so that when the lower edge is in a working state, a gap between the lower edge and the cleaning surface is sealed, and the dust collection performance of the floor brush applicable to the utility model is improved.

Description

Rolling brush assembly and ground brush

Technical Field

The present utility model relates generally to the technical field of floor cleaning devices, and more particularly to a roller brush assembly and a floor brush.

Background

Cleaning devices such as vacuum cleaners and floor washers have become a common tool for everyday cleaning. Floor brushes are an important accessory for such cleaning devices. When the cleaning device works, the floor brush moves on the surface to be cleaned, so that dust on the surface to be cleaned is continuously sucked into the cleaning device and is separated from air and ash. In the related art, in order to facilitate cleaning of foreign matters such as hair on the rolling brush, one end cover of the ground brush along the axial direction of the rolling brush is generally configured to be detachable, so that the rolling brush is conveniently taken out in a side-drawing manner. The detachable end cover in the related art is respectively in gap with the ground and the ground brush body, and the gap is lack of sealing, so that air leakage is caused, and the dust collection performance of the whole machine is greatly influenced.

Accordingly, there is a need to provide a roller brush assembly and a floor brush that at least partially address the above-mentioned problems.

Disclosure of Invention

In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the utility model is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

To at least partially solve the above-described problems, a first aspect of the present utility model provides a roller brush assembly for a floor brush, a housing of the floor brush having opposite first and second sides forming a receiving chamber therebetween, the first side forming a side opening communicating to the receiving chamber and a lower opening penetrating the housing downwardly from the side opening, the roller brush assembly comprising:

an end cap having a lower edge that in an operative condition faces a surface to be cleaned, the lower edge extending at least partially along a straight line to be parallel to the surface to be cleaned when the end cap is in the operative condition, the end cap for removable connection to the first side, the end cap connected to the first side covering the side opening and the lower edge being located at the lower opening; and

and the sealing piece is connected to the end cover and at least partially wraps the outer part of the lower edge so as to seal a gap between the lower edge in the working state and the surface to be cleaned.

According to the rolling brush assembly of the first aspect of the utility model, the lower edge of the end cover is arranged to extend at least partially along the same straight line so as to be parallel to the surface to be cleaned when the end cover is in the working state, and the sealing element is connected with the end cover and at least covers the outer part of the lower edge, so that the gap between the lower edge and the cleaning surface is sealed when the lower edge is in the working state, and the dust collection performance of the floor brush applicable to the utility model is further improved.

Optionally, the end cap comprises:

the outer contour shape of the cover body is adapted to the side opening, the lower edge is positioned at one side edge of the cover body, and the sealing piece is continuously arranged at the edge of the cover body along the circumferential direction.

Optionally, the end cap further comprises:

a mounting body configured to be formed extending radially outward from an edge of the cover body; and

a rotational positioning fastener rotatably connected to the mounting body in a locked position and an unlocked position about a rotational axis parallel to the axial direction, the rotational axis being perpendicular to the radial direction,

the rotational positioning fastener in the locked position is for positive engagement to a guide positioning fastener in the first side portion in an axial direction parallel to the rotational axis to limit the mounting body from being disengaged from the housing in the axial direction, and the rotational positioning fastener in the unlocked position is for positive engagement to the guide positioning fastener in the axial direction to allow the mounting body to move relative to the housing in the axial direction.

Optionally, the end cap further comprises:

an operating body connected to the rotational positioning fastener through a rotation shaft rotatably fitted to the mounting body about its own axis, the operating body being used for operating to rotate the rotational positioning fastener; and

the elastic body is arranged between the rotary positioning fastener and the installation body, or between the operation body and the installation body, and is used for applying elastic acting force to the rotary positioning fastener or the operation body so that the rotary positioning fastener rotates to the locking position.

Optionally, the rotary positioning fastener is provided with a guiding inclined plane which is used for being arranged corresponding to the guiding positioning fastener,

the rotational positioning fastener rotates to an unlocked position during the process of the guide ramp contacting and abutting the guide positioning fastener in the axial direction.

Optionally, the outer surface of the mounting body is recessed along the axial direction to form a first accommodating groove, and the operating body is located in the first accommodating groove.

Optionally, the rolling brush assembly further comprises:

the rolling brush is provided with a first end and a second end which are opposite in the axial direction, the first end of the rolling brush is connected to the end cover, the rolling brush is used for being connected to the accommodating cavity, and the second end of the rolling brush located in the accommodating cavity is close to the second side portion.

A second aspect of the present utility model provides a floor brush comprising:

the housing is provided with a first side part and a second side part which are opposite, a containing cavity is formed between the first side part and the second side part, a side opening communicated with the containing cavity and a lower opening penetrating the floor brush downwards from the side opening are formed in the first side part, and a guiding and positioning fastener is arranged on the first side part;

according to the rolling brush assembly, the end cover is connected to the first side portion and covers the side opening, the rotary positioning fastener of the end cover is clamped with the guide positioning fastener located on the first side portion, and the rolling brush assembly further comprises a rolling brush located in the accommodating cavity.

Optionally, the first side has a second receiving groove recessed in an axial direction parallel to the rotation axis for receiving an end cap, the side opening communicating to the second receiving groove,

the end cover located in the second accommodating groove does not exceed the surface of the first side part, which faces away from the second side part, along the axial direction.

Optionally, along the axial direction, a maximum distance between an edge of the working portion of the rolling brush located in the accommodating chamber and a surface of the first side portion facing away from the second side portion is less than or equal to 10mm.

According to the floor brush disclosed by the utility model, by applying the rolling brush assembly, the sealing performance between the end cover and the surface to be cleaned in the working state can be improved, so that the air tightness between the floor brush and the surface to be cleaned in the working state can be improved, and the dust collection performance of a complete machine applicable to the floor brush can be improved.

Drawings

The following drawings of embodiments of the present utility model are included as part of the utility model. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,

fig. 1 is a perspective view of a floor brush according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the roller brush assembly of FIG. 1 detached from or assembled to a floor brush;

FIG. 3 is an exploded perspective view of the floor brush shown in FIG. 1;

FIG. 4 is a side view of the floor brush shown in FIG. 1;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 6 is an enlarged view of section I of FIG. 5;

FIG. 7 is a partial perspective view of the floor brush of FIG. 1 from a bottom view;

FIG. 8 is a side view of the floor brush of FIG. 1 after removal of a portion of the end cap structure;

FIG. 9 is a partial perspective view of the floor brush of FIG. 1 after removal of a portion of the end cap structure;

FIG. 10 is a perspective view of the rotational positioning fastener shown in FIG. 3;

FIG. 11 is a side view of the roller brush assembly of FIGS. 1-4;

FIG. 12 is a perspective view of the roller brush assembly of FIG. 12 after removal of the roller brush and seal;

FIG. 13 is a schematic view of the attachment of the cover body and the mounting body of the roll brush assembly shown in FIG. 12;

FIG. 14 is an enlarged view of section II of FIG. 6; and

fig. 15 is a perspective view of the seal shown in fig. 2-7 and 9.

Reference numerals illustrate:

100: end cap 101: cover body

101a: sealing stopper 101b: lower edge of

102: mounting body 102a: first accommodating groove

103: rotational positioning fastener 103a: guiding inclined plane

104: the operating body 105: elastic body

106: rotation shaft 107: reinforcing member

110: the roller brush 120: sealing element

130: the housing 131: first side part

131a: the second accommodation groove 131b: side opening

131c: lower opening 131d: guiding and positioning fastener

132: second side 133: accommodating chamber

P1: surface to be cleaned

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that embodiments of the utility model may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the embodiments of the utility model.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the present utility model. It will be apparent that embodiments of the utility model may be practiced without limitation to the specific details that are set forth by those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model, as 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," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like are used herein for illustrative purposes only and are not limiting.

Ordinal numbers such as "first" and "second" cited in the present utility model are merely identifiers and do not have any other meaning, such as a particular order or the like. Also, for example, the term "first component" does not itself connote the presence of "second component" and the term "second component" does not itself connote the presence of "first component".

Hereinafter, specific embodiments of the present utility model will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the present utility model and not limit the present utility model.

The utility model provides a rolling brush assembly, which is used for a floor brush of cleaning equipment such as a dust collector, a floor washer and the like. Referring to fig. 1 to 9, a housing 130 of the floor brush has a first side 131 and a second side 132 opposite in a width direction. The first side portion 131 and the second side portion 132 form an accommodating chamber therebetween. The first side portion 131 forms a side opening 131b communicating to the receiving chamber and a lower opening 131c penetrating downward from the side opening 131b through the case 130. As shown in fig. 1 to 15, the roll brush assembly according to the present utility model includes an end cap 100 and a seal member 120. The end cap 100 has a lower edge 101b which in the operating state faces the surface P1 to be cleaned. The surface P1 to be cleaned may be a floor. The operation state herein corresponds to the operation state to be mentioned later, and it is understood that the state when the floor brush is used for realizing the dust collection and the like. The lower edge 101b extends at least partially along a straight line to be parallel to the surface P1 to be cleaned when the end cap 100 is in the operating state. When the brush is in the working state, the lower edge 101b is located at the bottom of the end cap 100 and near the surface P1 to be cleaned. Also, when the floor brush is in the operating state, the extending direction of the portion extending in a straight line on the lower edge 101b may coincide with the traveling direction of the floor brush. The end cap 100 is adapted to be removably connected to the first side 131. From the perspective of the operator, the first side 131 may be understood to be the right side of the brush when pushed by the operator, according to the usual habit of using cleaning tools. Thereby facilitating the operator's right hand implementation of the corresponding operation on the end cap 100. The end cap 100 connected to the first side 131 covers the side opening 131b and the lower edge 101b is located at the lower opening 131c. The positioning of the lower edge 101b at the lower opening 131c can help to increase the dimension of the lower edge 101b in the height direction, thereby helping to reduce the clearance of the lower edge 101b of the end cap 100 from the surface P1 to be cleaned. A seal 120 is connected to the end cap 100. Also, the seal 120 at least partially wraps around the exterior of the lower edge 101b, i.e., the seal 120 may fully or partially wrap around the exterior of the lower edge 101b. This can seal the gap between the lower edge 101b in the working state and the surface P1 to be cleaned. Here, the outside of the lower edge 101b is understood to mean that the seal 120 is located at least in the lower part of the lower edge 101b when the end cap 100 is in the operational state. This helps to further improve the seal between the end cap 100 and the surface P1 to be cleaned. In the case where the seal member 120 is made of a soft elastic material, the seal member 120 may even contact the surface P1 to be cleaned when the end cap 100 is in an operating state.

According to the rolling brush assembly, the lower edge 101b of the end cover 100 is arranged to extend at least partially along the same straight line so as to be parallel to the surface P1 to be cleaned when the end cover 100 is in the working state, and the sealing element 120 is connected with the end cover 100, and the sealing element 120 is at least coated on the outer part of the lower edge 101b, so that the gap between the lower edge 101b and the cleaning surface is sealed when the lower edge 101b is in the working state, and the dust collection performance of the floor brush applicable to the rolling brush assembly is further improved.

Referring to fig. 1 to 9, and 11 to 15, for example, the end cap 100 may include a cap body 101. The outer contour shape of the cover body 101 is adapted to the side opening 131b. The lower edge 101b is located at one side edge of the cover body 101. The seal 120 is continuously provided at the edge of the cover body 101 in the circumferential direction.

The sealing member 120 and the end cap 100 may be fixed by secondary encapsulation or may be stuck by means of a back adhesive. For example, the seal 120 may be configured as a soft gel that is overmolded using an injection molding process. The soft rubber forms a flange adapted to the seal stopper 101a of the cap body 101 at the time of the encapsulation molding. For example, the cross section of the sealing limiting part 101a is in a step shape, so that the soft rubber can form steps at the connecting part in an encapsulated mode, the contact area with the sealing limiting part 101a is increased, and the stability of the connecting part is enhanced.

In the embodiment illustrated in fig. 14, the structure of the junction of the soft rubber and the cover body 101 is shown. In the drawing, the soft rubber has a burring structure inclined to the axial direction of the roller brush 110, in addition to a stepped structure adapted to the stepped structure of the cover body 101. The radially outer surface of the turn-ups is gradually reduced in distance from the axis of the roll brush 110 seen in the axial direction from the first side portion 131 to the second side portion 132. The advantage of setting up like this is, make things convenient for the flexible glue to get into side opening 131b more easily at end cover 100 assembly to casing 130's in-process, and when the scrubbing brush works along with the complete machine, the negative pressure in the holding chamber can increase the area of contact of turn-ups and the inner wall of side opening 131b to the sealing performance of turn-ups and the inner wall of side opening 131b obtains further improving, and then helps improving the dust absorption ability of complete machine.

Referring to fig. 1 to 14, the end cap 100 may further include a mounting body 102 and a rotational positioning fastener 103. The mounting body 102 is configured to be formed extending outward in a radial direction perpendicular to the axial direction from an edge of the cover body 101. When the end cap 100 is positioned on the floor brush, the axial direction is parallel to the width direction of the floor brush. The rotational positioning fastener 103 is rotatably connected to the mounting body 102 in the locked position and the unlocked position about a rotational axis 106 line parallel to the axial direction. When the rotational positioning fastener 103 is located at the locking position, the rotational positioning fastener 103 is used for being axially and limitedly matched to the guiding positioning fastener 131d located at the first side 131, so as to limit the mounting body 102 from being axially separated from the housing 130. When the rotational positioning buckle 103 is in the unlocked position, the rotational positioning buckle 103 is adapted to be axially guided fitted to the guide positioning buckle 131d to allow the mounting body 102 to be axially moved relative to the housing 130. In the process of assembling the cap 100 to the housing 130 of the floor brush, by moving the cap 100 in the width direction of the housing 130 of the floor brush, if the rotational positioning buckle 103 is located at the unlock position, it can be moved in the width direction with respect to the guide positioning buckle 131d. After moving into place, if the rotational positioning fastener 103 is in the locked position, the end cap 100 can be restricted from being separated from the housing 130 of the floor brush; the rotational positioning catch 103, when in the unlocked position, can allow the end cap 100 to disengage from the housing 130 of the floor brush.

Referring to fig. 1 to 13, the end cap 100 may further include an operating body 104 and an elastic body 105. The operating body 104 may be connected to the rotational positioning fastener 103 through a rotation shaft 106. The rotation shaft 106 is rotatably fitted to the mounting body 102 about its own axis. The operation body 104 is used for operation to rotate the rotational positioning fastener 103. The elastic body 105 is disposed between the rotational positioning fastener 103 and the mounting body 102. Alternatively, the elastic body 105 is provided between the operation body 104 and the mounting body 102. The elastic body 105 is used to apply an elastic force to the rotational positioning fastener 103 or the operation body 104 so that the rotational positioning fastener 103 rotates to the lock position. In the present embodiment, by applying a torsion force from the outside to the operation body 104 so that the rotation positioning buckle 103 rotates to the unlocking position, the end cap 100 can be moved in the axial direction to fit the end cap 100 to the first side 131 of the housing 130, and after the end cap 100 is fitted in place, by removing the torsion force from the outside applied to the operation body 104, the rotation positioning buckle 103 can be rotated to the locking position under the elastic force of the elastic body 105, thereby restricting the end cap 100 from being separated from the housing 130 of the floor brush in the axial direction, thereby completing the fitting operation of the end cap 100. When the end cap 100 needs to be removed, a torsion force from the outside needs to be applied to the operation body 104 to rotate the rotational positioning fastener 103 from the locked position to the unlocked position, so that the end cap 100 can be removed from the housing 130 of the floor brush in the axial direction.

With continued reference to fig. 1-13, in the illustrated embodiment, the shaft 106 may be configured as a screw. That is, the operating body 104 is fastened to the rotational positioning fastener 103 by a screw. Further, the screw passes through the mounting body 102 and is rotatable with respect to the cover body 101. The elastic body 105 may be configured as a torsion spring, one end of which is connected to the mounting body 102 and the other end of which is connected to the operation body 104. When no torsion force is applied to the operation body 104 from the outside, the operation body 104 is in the initial position by the torsion spring while the rotation positioning buckle 103 is in the lock position. When a torsion force from the outside is applied to the operation body 104, the rotation positioning fastener 103 can be rotated to the unlock position if the torsion force can overcome the elastic force of the torsion spring. The operating body 104 may be configured as in the illustrated embodiment, or may be configured as a knob as in the related art.

Referring to fig. 3 and 8 to 10, in order to facilitate the installation of the end cap 100, the rotational positioning fastener 103 of the present utility model has a guide slope 103a for corresponding to the guide positioning fastener 131d. During the process in which the guide slope 103a contacts and axially abuts against the guide positioning buckle 131d, the rotational positioning buckle 103 rotates toward the unlock position. That is, the guiding inclined plane 103a is used to apply an axial force to the end cover 100 when the end cover 100 approaches the first side 131 of the ground brush, so that the guiding inclined plane 103a can adaptively rotate to the unlocking position when abutting against the guiding and positioning fastener 131d, and after the end cover 100 moves in place, the rotating and positioning fastener 103 can return to the locking position under the action of the elastic body 105, and locking is automatically achieved. By providing the guide slope 103a and the guide positioning fastener 131d to form a slope guide fit, the installation of the end cap 100 can be more conveniently achieved. Since the operation body 104 can be omitted during the process of equipping the end cap 100, the operation amount of an operator can be reduced, and the assembly efficiency can be improved.

In other embodiments of the present utility model, the guide slope 103a may be provided to the guide positioning buckle 131d, or the guide slope 103a may be provided to the rotation positioning buckle 103 and the guide positioning buckle 131d, respectively.

Referring to fig. 1 to 4, and fig. 7, 11 and 13, for another example, the outer surface of the mounting body 102 may be axially recessed to form a first receiving groove 102a. The operating body 104 is located in the first accommodation groove 102a. The accommodation of the operation body 104 by the first accommodation groove 102a of the mounting body 102 can help to reduce the occupation of the operation body 104 to the axially outer space of the mounting body 102. In the case where the housing 130 of the floor brush has a structure adapted to the installation groove type of the end cover 100, the maximum distance between the roller brush 110 and the outer surface of the end cover 100 can be effectively reduced, thereby helping the floor brush to clean to the side and improving the cleaning effect.

Referring to fig. 1 to 9, the roller brush assembly may further include a roller brush 110. The roller brush 110 has axially opposite first and second ends. A first end of the roller brush 110 is connected to the end cap 100. The roller brush 110 is for connection to the receiving chamber. The second end of the roller brush 110 located in the receiving chamber is adjacent to the second side 132.

In the illustrated embodiment, the roller brush 110 is connected to the cover body 101. The rotational positioning fastener 103 and the roller brush 110 are located on the same side of the cover body 101.

Referring to fig. 5 and 6, the end cap 100 may further include a reinforcement 107 located internally. At least one portion of the reinforcement 107 is located within the cover body 101 and at least another portion is located within the mounting body 102. This helps to enhance the bending resistance of the end cap 100.

In the illustrated embodiment, the reinforcement 107 may be constructed as a steel plate that is pre-buried inside the end cap 100 when the end cap 100 is manufactured. One end of the steel plate corresponds to at least the position of the rotation shaft 106 such that the rotation shaft 106 passes through the steel plate when assembled. The other end of the steel plate corresponds at least to the positioning support structure on the cover body 101. This contributes to the strength of the structure of the cover body 101 itself and the connection structure of the end cap 100 to the rotary shaft 106, the roller brush 110, and the like, respectively.

Referring to fig. 1 to 15, the present utility model further provides a floor brush. The floor brush of the present utility model comprises a housing 130 and a roller brush assembly according to the above. The case 130 has a first side 131 and a second side 132 opposite in the width direction. The width direction here intersects the direction of travel of the floor brush in the operating state. The first side portion 131 and the second side portion 132 form an accommodating chamber therebetween. The first side portion 131 forms a side opening 131b communicating to the receiving chamber and a lower opening 131c penetrating the floor brush downward from the side opening 131b. The first side 131 has a guide and positioning fastener 131d. The end cap 100 is connected to the first side 131 and covers the side opening 131b. The rotational positioning fastener 103 of the end cap 100 is engaged with the guide positioning fastener 131d located at the first side 131. The roller brush assembly may further include a roller brush 110, the roller brush 110 being connected to the receiving chamber. The axial direction of the roll brush 110 is parallel to the width direction of the housing 130. A driving assembly is generally correspondingly installed inside the second side 132 to drive the rolling brush 110 to rotate.

According to the floor brush, the sealing performance between the end cover 100 and the surface P1 to be cleaned in the working state can be improved by applying the rolling brush assembly, so that the air tightness between the floor brush and the surface P1 to be cleaned in the working state can be improved, and the dust collection performance of a complete machine applicable to the floor brush can be improved.

In the dust collection process, the corners of the wall are difficult to clean in place, and in order to solve the welting effect of the rolling brush 110 and the wall surface, the rolling brush 110 is arranged at the most edge of the floor brush as much as possible. Referring to fig. 1 to 9, for example, the first side 131 may have a second receiving groove 131a recessed in an axial direction parallel to the rotation axis. The second receiving groove 131a is for receiving the end cap 100. The side opening 131b communicates to the second receiving groove 131a. The end cap 100 located in the second receiving groove 131a does not axially protrude beyond the surface of the first side 131 facing away from the second side 132. In this way, the thickness of the corresponding portion of the end cover 100 can be reduced, which is helpful to reduce the gap between the roller brush 110 and the outer surface of the end cover 100, and further is helpful to clean the roller brush 110 to the edge portion of the surface P1 to be cleaned, and improves the cleaning effect.

Further, in the axial direction, the maximum distance between the edge of the working portion of the rolling brush 110 located in the accommodating chamber 133 and the surface of the first side portion 131 facing away from the second side portion 132 is less than or equal to 10mm. The working portion of the roll brush 110 may be understood as a portion of the roll brush 110 where structures such as a wool top or a brush are arranged, that is, a portion for cleaning the floor. In general, when the surface of the first side 131 of the ground brush facing away from the second side 132 in the axial direction abuts against an obstacle such as a wall, the surface cannot be kept close to the edge, and by limiting the maximum distance between the roller brush 110 and the surface of the first side 131 facing away from the second side 132 in the axial direction to be less than or equal to 10mm, the cleaning area and the cleaning effect of the roller brush 110 at the cleaning edge portion can be improved, and the residues can be reduced.

The rolling brush 110 can be pressed on the end cover 100 through a tool in production and manufacture, and interference fit is adopted between the rolling brush 110 and the end cover 100. This ensures that the maximum distance of the roller brush 110 from the outer surface of the end cap 100 is as small as possible during the production phase; meanwhile, the user cannot detach the end cover 100 from the roll brush 110 at will, so that the maximum distance between the roll brush 110 and the outer surface of the end cover 100 is not easily changed in the use process, i.e., the axial distance between the end cover 100 and the roll brush 110 is not easily affected when the user performs daily operations such as cleaning and maintenance on the roll brush 110.

The rolling brush 110 is placed in the accommodating chamber of the floor brush housing 130, and is conveniently disassembled and assembled by being pulled out from the side opening 131b of the first side portion 131.

Under the working state of the whole machine, the accommodating cavity is sealed with the shell 130 through the sealing piece 120 such as soft rubber on the end cover 100 of the rolling brush 110 and is sealed with the ground, so that the tightness of the accommodating cavity is ensured, the tightness of an air duct of the whole machine is further improved, and the cleaning effect during dust collection is improved greatly. Wherein the bottom surface of the sealing member 120 is parallel to the ground, and the other parts are consistent with the shape of the ground brush housing 130.

Referring to fig. 3 and 11 to 13, the rotation positioning fastener 103 and the operating body 104 may be fixed to the mounting body 102 of the end cap 100 by screws. The torsion spring is installed between the operating body 104 and the installation body 102. The roll brush assembly including the end cap 100, the sealing member 120 and the roll brush 110 is attached to the ground brush housing 130 by being pressed sideways. In the assembly process, the rotary positioning fastener 103 and the housing 130 of the ground brush are guided by the inclined plane in a matched manner, and are clamped into the housing 130 of the ground brush in a rotary manner. When the rolling brush assembly is mounted in place, the operating body 104 is rotationally reset under the action of the torsion spring, and simultaneously the rotational positioning fastener 103 is clamped with the guiding positioning fastener 131d of the housing 130.

The user can withdraw the roller brush assembly from the side to perform washing, airing, replacement, etc. of the roller brush 110.

In the use process, the floor brush can make the distance between the side of the rolling brush 110 and the wall surface as small as possible, thereby achieving the effect of edge cleaning. Wherein, when the first side 131 of the ground brush is abutted against the wall, the distance between the rolling brush 110 and the wall includes, but is not limited to, between 0mm and 10mm.

The rolling brush assembly and the floor brush with the rolling brush assembly are convenient for disassembly and assembly of the rolling brush 110, and the sealing element 120 is arranged on the end cover 100 to form good sealing with the shell 130 of the floor brush and the surface P1 to be cleaned, so that dust collection capability is improved. In addition, the welt cleaning performance is improved.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used herein is for the purpose of describing particular implementations only and is not intended to be limiting of the utility model. Terms such as "disposed" or the like as used herein may refer to either one element being directly attached to another element or one element being attached to another element through an intermediate member. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features unless the features are not applicable or otherwise indicated in the other embodiment.

The present utility model has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. Those skilled in the art will appreciate that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed.

Claims

1. A roller brush assembly for a floor brush, the housing of the floor brush having opposed first and second sides forming a receiving chamber therebetween, the first side forming a side opening communicating to the receiving chamber and a lower opening extending downwardly through the housing from the side opening, the roller brush assembly comprising:

2. The roll brush assembly of claim 1, wherein the roll brush assembly comprises a plurality of rollers,

the end cap includes:

3. The roll brush assembly of claim 2, wherein the roll brush assembly comprises a plurality of rollers,

the end cap further comprises:

a rotational positioning fastener rotatably connected to the mounting body in a locked position and an unlocked position about a rotational axis, the rotational axis being perpendicular to the radial direction,

4. The roll brush assembly of claim 3, wherein the end cap further comprises:

5. The roll brush assembly according to claim 3 or 4, wherein the rotational positioning fastener has a guide slope for being disposed corresponding to the guide positioning fastener,

6. The roll brush assembly according to claim 4, wherein the outer surface of the mounting body is recessed along the axial direction to form a first receiving groove, and the operating body is located in the first receiving groove.

7. The roller brush assembly of any of claims 1-4, further comprising:

8. A floor brush, characterized in that the floor brush comprises:

the roller brush assembly of any of claims 1-7, the end cap connected to the first side and covering the side opening, the rotational positioning fastener of the end cap snap-engaging with a guide positioning fastener located at the first side, the roller brush assembly further comprising a roller brush located at the receiving chamber.

9. The floor brush of claim 8, wherein the first side has a second receiving groove recessed in an axial direction for receiving an end cap, the side opening communicating to the second receiving groove,

10. The floor brush of claim 9, wherein a maximum distance between an edge of the working portion of the roller brush located in the receiving chamber and a surface of the first side facing away from the second side in the axial direction is less than or equal to 10mm.