CN113974510B

CN113974510B - Cleaning head and surface cleaning equipment

Info

Publication number: CN113974510B
Application number: CN202111426931.4A
Authority: CN
Inventors: 车军伟
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2021-11-28
Filing date: 2021-11-28
Publication date: 2022-09-02
Anticipated expiration: 2041-11-28
Also published as: CN113974510A; CN115251785A; CN115251784B; CN115251784A; WO2023093441A1; CN115251785B

Abstract

The invention discloses a cleaning head and surface cleaning equipment, which comprises a shell limited with a rolling brush installation cavity, wherein a rolling brush is installed in the rolling brush installation cavity, the rolling brush comprises a first end and a second end which are oppositely arranged along the axial direction of the rolling brush, and the first end can be rotatably installed on the shell around the axis of the first end through a connector. The collector is arranged on the periphery of the connector, the collector is respectively a suspended end and a fixed end along the axial direction of the rolling brush, the fixed end is fixed on the shell, and the suspended end extends into the rolling brush installation cavity and is in clearance fit with the first end of the rolling brush; wherein the free end extends into an annular groove defined by the first end of the rolling brush, and the free end is in clearance fit with the first end. The collector is arranged at the end part of the rolling brush, so that hairs can be effectively prevented from entering the space where the rotating shaft is located, and the rotating shaft can be effectively protected.

Description

Cleaning head and surface cleaning equipment

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a cleaning head and surface cleaning equipment.

Background

Along with the improvement of technological level, most users do not rely on traditional mops, brooms and the like to clean the surface to be cleaned, but adopt surface cleaning equipment to clean, and the cleaning device is convenient and has better effect. Surface cleaning equipment generally all includes the cleaning head, and the cleaning head is provided with the round brush, treats the stirring of cleaning surface through the round brush, reaches better clean effect.

However, there are some disadvantages in using the roller brush, for example, when there are hairs on the surface to be cleaned, some hairs may be entangled on the roller brush, and in addition, some hairs may be stuck to the rotating shaft of the roller brush along with the rotation of the roller brush, and if the hairs are not cleaned for a long time, the rotating shaft may be damaged to affect the rotating speed of the roller brush, and the roller brush may be seriously stuck.

Disclosure of Invention

Aiming at the defects in the technology, the invention provides the cleaning head, the cleaning head is provided with the collector, so that hairs can be effectively collected, and the hairs are prevented from being sent to the rotating shaft.

In one aspect, the invention provides a cleaner head comprising

A housing defining a roll brush mounting cavity;

the rolling brush is arranged in the rolling brush installation cavity, the rolling brush comprises a first end and a second end which are oppositely arranged along the axial direction of the rolling brush, and the first end can be rotatably arranged on the shell around the axis of the first end through a connector;

the collector is arranged on the periphery of the connector, the collector is respectively a suspended end and a fixed end along the axial direction of the rolling brush, the fixed end is fixed on the shell, and the suspended end extends into the rolling brush installation cavity and is in clearance fit with the first end of the rolling brush;

wherein the free end extends into an annular groove defined by the first end of the roller brush, and the free end is in clearance fit with the first end.

Optionally, the collector is an annular flange formed by a part of the housing extending into the roller brush installation cavity along the axial direction of the roller brush.

Optionally, the hanging end is of a sawtooth structure, and an opening of the sawtooth structure faces the rolling brush installation cavity.

Optionally, the hanging end includes a plurality of protruding portions arranged at intervals along a circumferential direction of the rolling brush, and the protruding portions extend into the rolling brush installation cavity along an axial direction of the rolling brush.

Optionally, a concave portion is arranged between two adjacent convex portions, a guide edge is arranged between the convex portions and the concave portion, and the guide edge is obliquely arranged along a direction away from the rolling brush so as to connect the top wall of each convex portion with the bottom wall of the corresponding concave portion.

Optionally, a part of the outer circumferential surface of the free end is provided with at least one groove, and the groove is formed by inwards recessing the outer circumferential surface along the radial direction of the rolling brush.

Optionally, the groove includes a first inclined surface that is recessed downward and a second inclined surface that is raised upward, and a length of the second inclined surface is greater than a length of the first inclined surface along a rotation direction of the roller brush.

Optionally, at least a portion of the outer circumference of the free end is wavy.

Optionally, the collector comprises a plurality of support structures surrounding the periphery of the connector.

In another aspect, the invention also provides a cleaner head comprising

A housing defining a roll brush mounting cavity;

the rolling brush is arranged in the rolling brush installation cavity, the rolling brush comprises a first end and a second end which are oppositely arranged along the axial direction of the rolling brush, and the first end is arranged on the shell through a connector;

the collector is arranged at the first end or the shell corresponding to the first end, is arranged at the periphery of the connector, and is static relative to the shell when the rolling brush rotates around the axis of the rolling brush; the collector comprises a suspended end and a fixed end which are oppositely arranged along the axial direction of the rolling brush;

the fixed end is fixed on the shell, and the suspended end extends outwards from the fixed end along the axial direction of the rolling brush and is suspended in the air; wherein the free end extends into the recess defined by the first end and is in clearance fit with the first end; or

The fixed end is fixed at the first end, and the suspended end extends outwards from the fixed end along the axial direction of the rolling brush and is suspended; wherein the free end extends into a recess defined by the housing and is in clearance fit with the housing.

Optionally, when the collector is disposed at the first end, the collector and the connector are relatively stationary.

Optionally, a concave portion is arranged between two adjacent convex portions, a guide edge is arranged between the convex portions and the concave portion, and the guide edge is obliquely arranged in a direction away from the rolling brush so as to connect the top wall of the convex portion and the bottom wall of the concave portion.

Optionally, the suspended end is provided with a recessed portion recessed inwards along an axial direction of the rolling brush, the recessed portion includes a guiding edge, and the guiding edge is configured to be away from the rolling brush along a rotation direction of the rolling brush.

Optionally, at least part of the outer circumference of the free end is wavy.

Optionally, the recess includes a first sidewall and a second sidewall, the first sidewall is located upstream of the second sidewall in the rolling brush rotation direction, and the first sidewall is disposed obliquely in the rolling brush rotation direction.

Optionally, the second side wall is substantially parallel to an axial direction of the roller brush.

Optionally, a bottom wall is further included between the first side wall and the second side wall, and the bottom wall is substantially perpendicular to the second side wall.

The invention also provides a surface cleaning apparatus comprising a cleaning head as in any one of the embodiments above.

The invention provides a cleaning head and surface cleaning equipment, which comprises a shell body limited with a rolling brush installation cavity, wherein a rolling brush is installed in the rolling brush installation cavity, the rolling brush comprises a first end and a second end which are oppositely arranged along the axial direction of the rolling brush, and the first end can be rotatably installed on the shell body around the axis of the first end through a connector. The collector is arranged on the periphery of the connector, the collector is respectively a suspended end and a fixed end along the axial direction of the rolling brush, the fixed end is fixed on the shell, and the suspended end extends into the rolling brush installation cavity and is in clearance fit with the first end of the rolling brush; wherein the free end extends into an annular groove defined by the first end of the rolling brush, and the free end is in clearance fit with the first end. Through the tip installation collector at the round brush, can prevent effectively that the hair from getting into rotation axis place space, can effectively protect the rotation axis.

Drawings

FIG. 1 is a schematic view of a cleaning head according to an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the cleaning head with one of the roll brushes removed;

FIG. 3 is a schematic view of the cleaning head of FIG. 2 at another angle;

FIG. 4 is a cross-sectional view taken along section A-A of FIG. 1;

FIG. 5 is an enlarged view of a portion of the area C in FIG. 4;

FIG. 6 is an exploded view of a partial structure of the cleaning head;

FIG. 7 is an exploded view of a partial structure of the cleaning head from another perspective;

FIG. 8 is a schematic structural view of the collector disposed in the housing;

FIG. 9 is a schematic diagram of an embodiment of a collector;

FIG. 10 is a schematic view of the structure of a collector in another embodiment;

FIG. 11 is a schematic view showing the structure of a collector in still another embodiment;

FIG. 12 is a front view of a collector in yet another embodiment;

FIG. 13 is an enlarged view of the structure of the area D shown in FIG. 12;

FIG. 14 is a schematic diagram showing a partial structure of a cleaning head in accordance with one embodiment;

FIG. 15 is a schematic diagram of a surface cleaning apparatus in one embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1-8, the direction of the arrow in the figures is the direction of rotation of the roller brush, and fig. 1 is a schematic structural view of a cleaning head according to an embodiment of the present invention. Fig. 2 is a schematic structural view of the cleaning head with one of the roll brushes removed in one embodiment. Fig. 3 is a schematic view of the cleaning head shown in fig. 2 at another angle. Fig. 4 is a sectional view taken along a-a section in fig. 1. Fig. 5 is a partially enlarged view of the region C in fig. 4. Fig. 6 is an exploded view of a partial structure of the cleaning head. Fig. 7 is an exploded view of a partial structure of the cleaning head from another perspective. Fig. 8 is a schematic structural view of the collector disposed in the housing. As shown in fig. 1-3, there is disclosed a cleaning head 10 comprising a housing 2, the housing 2 defining at least one roller brush mounting cavity 12; the rolling brush 11 is installed in the rolling brush installation cavity 12. The cleaning head 10 may be provided with a suction nozzle through which dirt is recovered, or the cleaning head 10 may be provided without a suction nozzle and clean the surface to be cleaned completely by the rotation of the drum brush 11. The roller brush 11 is generally cylindrical, the roller brush 11 includes a hollow cylindrical core 13, the outer surface of the core 13 is provided with a wiping piece 19 for cleaning the surface to be cleaned, the wiping piece 19 may be made of a woven material such as fluff, and of course, other materials or other forms may also be used, which is not limited herein. The roller brush 11 comprises a first end 15 and a second end 16 which are oppositely arranged along the axial direction, and the first end 15 is rotatably arranged on the shell 2 around the axis thereof through a connector 21; specifically, two ends of the core 13 are respectively provided with an end cap 14, and the end caps 14 are fixedly connected with the core 13.

Referring to fig. 4 and 5, solid line B in fig. 5 is the path of a hair entering the annular groove. In one embodiment, the first end 15 of the rolling brush 11 is provided with a key slot 17, an annular groove 41 is formed around the key slot 17, and the connector 21 is disposed at the position of the housing 2 corresponding to the first end 15, in this embodiment, the connector 21 may be a spline, the connector 21 is rotatably disposed at the housing 2 through a bearing, after the rolling brush 11 is installed in the rolling brush installation cavity 12, the spline is abutted with the key slot 17, and the rolling brush 11 can rotate around its axis through the bearing as a supporting point. The power means for the roller brush 11 may be located within the cavity of the core 13, in which case the end cap 14 at the second end 16 would need to be eliminated, since the motor would need to enter the cavity of the core 13 from the second end 16. Of course, in other embodiments, the connector 21 may be in transmission connection with a motor disposed outside the roller brush 11, and the roller brush 11 is driven to rotate by the connector 21. Since the connector 21 and the housing 2 are moved relative to each other, there is a gap therebetween, and if hair enters the gap, the rotation performance of the connector 21 is affected, and if the amount of hair increases gradually, the connector 21 may be locked and not rotated. In order to minimize the entry of hairs into the gap formed between the connector 21 and the housing 2, a collector 3 is provided on the outer circumference of the connector 21. The collector 3 is disposed in the housing 2 at the first end 15. in the embodiment shown in the figures, the collector 3 may be integrally formed with the housing 2 to define a circular slot in which the connector 21 is mounted. Specifically, the collector 3 is an annular flange formed by extending a part of the housing 2 into the roller brush installation cavity 12 in the axial direction of the roller brush 11. The radial outer diameter of the annular flange is smaller than the outer diameter of the core body 13. Of course, in other embodiments, the collector 3 may also be detachably mounted to the housing 2.

With continued reference to fig. 5, the collector 3 is disposed at the periphery of the connector 21, the collector 3 is respectively a hanging end 31 and a fixed end 32 along the axial direction of the rolling brush 11, the fixed end 32 is fixed to the housing 2, and the hanging end 31 extends into the rolling brush installation cavity 12 and is in clearance fit with the first end 15 of the rolling brush 11; wherein the free end 31 extends into the annular groove 18 defined by the first end 15 of the roller brush 11 and the free end 31 is in clearance fit with the first end 15. By providing the collectors 3 on the outer periphery of the connector 21, the collectors 3 are in clearance fit with the annular grooves 18, so that hairs can be collected on the collectors 3 as much as possible without affecting the rotation performance of the roll brush 11, and the hairs can be effectively prevented from entering the clearance between the connector 21 and the housing 2.

With continued reference to fig. 5, specifically, the annular groove 18 has upper and lower side walls in the radial direction of the roller brush 11, and the outer edge of the connector 21 is located between the upper and lower side walls in the radial direction of the roller brush 11, so that even if hair enters the recess 41 from the collector 3, the hair is blocked by the outer edge of the connector 21, preventing the hair from entering the gap between the connector 21 and the housing 2.

Referring to fig. 6-10, fig. 9 is a schematic diagram of the collector structure in one embodiment. FIG. 10 is a schematic view of a collector according to another embodiment. In order to further improve the collecting effect, the hanging end 31 is of a saw-toothed structure, and the opening of the saw-toothed structure faces the roller brush installation cavity 12. The indentation 34 is provided with a first side wall 37 and a second side wall 38, and the first side wall 37 is located upstream of the second side wall 38 in the rotation direction of the roller brush 11, and the first side wall 37 is disposed obliquely in the rotation direction of the roller brush 11. I.e. the first side wall 37 is inclined away from the roll brush 11. Thus, the hair wound around the collector 3 is guided away from the roller brush 11 by the first side wall 37 during the rotation of the roller brush 11. In one embodiment, the second side wall 38 is substantially parallel to the axial direction of the roller brush 11. In another embodiment, the first side wall 37 and the second side wall 38 further include a bottom wall 39 therebetween, and the second side wall 38 may be substantially perpendicular to the bottom wall 39. The second side wall 38 may also be inclined, and the inclined direction of the second side wall 38 gradually extends away from the rolling brush 11.

Referring to fig. 8 to 9, the hanging end 31 includes a plurality of protrusions 33 arranged at intervals in the circumferential direction of the roll brush 11, and the protrusions 33 extend in the axial direction of the roll brush 11 into the roll brush mounting chamber 12. Further, between two adjacent convex portions 33 is a concave portion 34, and between the convex portions 33 and the concave portion 34 is provided a guiding edge 35, and the guiding edge 35 is obliquely provided in a direction away from the roller brush 11 to connect a top wall of the convex portion 33 and a bottom wall 39 of the concave portion 34. By arranging the guiding edge 35 far away from the rolling brush 11, the winding materials wound on the outer peripheral surface 42 of the suspended end 31 can be effectively moved towards the fixed end 32 when the rolling brush 11 rotates; the hairs are kept as far away from the free end 31 as possible to remain on the collector 3 and prevent hairs from entering the space where the connector 21 is located from the gap between the free end 31 and the recess 41.

Referring to fig. 11-13, fig. 11 is a schematic view of a collector in yet another embodiment. Fig. 12 is a front view of a collector in yet another embodiment. Fig. 13 is an enlarged view of a structure of a region D shown in fig. 12. A part of the outer circumferential surface 42 of the free end 31 is provided with at least one groove 41, the groove 41 being formed by the outer circumferential surface 42 being recessed inwards in the radial direction of the roller brush 11. The groove 41 includes a first inclined surface 43 recessed downward and a second inclined surface 44 raised upward, and the length of the second inclined surface 44 is greater than that of the first inclined surface 43 in the rotating direction of the roll brush 11.

Referring to fig. 13, in other embodiments, a portion of the outer peripheral surface 42 of the free end 31 is provided with at least one groove 41, and the groove 41 is formed by the outer peripheral surface 42 being recessed inward in the radial direction of the roll brush 11. The groove 41 includes a first slope 43 recessed downward and a second slope 44 raised upward, and the length of the second slope 44 is greater than that of the first slope 43 in the rotation direction of the roller brush 11. That is, the arrangement in which the first inclined surface 43 has a relatively steep slope and the second inclined surface 44 has a relatively gentle slope can guide hairs wound around the free end 31 away from the roller brush 11 when the roller brush 11 rotates. In a further embodiment, the outer peripheral surface 42 of at least a portion of the free end 31 is undulating. Specifically, the outer peripheral surface 42 of the entire free end 31 has a closed-loop wave-shaped structure.

In other embodiments, the collector 3 comprises a plurality of support structures (not shown) spaced around the periphery of the connector 21, i.e. the outer surfaces of the support structures are substantially in the same cylinder, and the support structures surround the periphery of the connector 21. The support structure comprises a free end 31 and a fixed end 32, and the free end 31 may be the structure of any of the above embodiments, that is, may comprise a guiding edge 35, may comprise a groove 41, and may be a zigzag or wave structure.

Referring to fig. 14, fig. 14 is a schematic structural view of a partial structure of a cleaning head according to an embodiment. Referring also to fig. 1, the collector may be referred to in fig. 9-13, and in the embodiment shown the cleaning head 10 includes a housing 2 defining at least one roller brush mounting cavity 12. The cleaning head 10 may or may not be provided with a suction nozzle. The rolling brush 11 is installed in the rolling brush installation cavity 12, the rolling brush 11 is generally cylindrical, the rolling brush 11 includes a hollow cylindrical core 13, a wiping piece 19 for cleaning the surface to be cleaned is arranged on the outer surface of the core 13, and the wiping piece 19 can be made of a fluff material, and of course, can be made of other materials or in other forms. The roller brush 11 comprises a first end 15 and a second end 16 which are oppositely arranged along the axial direction, and the first end 15 is rotatably arranged on the shell 2 around the axis thereof through a connector 21; specifically, two ends of the core 13 are respectively provided with an end cap 14, and the end caps 14 are fixedly connected with the core 13.

With continued reference to fig. 14, a connector 21 is provided at the first end 15, the connector 21 may be a spline, the housing 2 is provided with a key slot 17 corresponding to the spline, and when the roller brush 11 is rotated, the connector 21 is stationary relative to the key slot 17 because the connector 21 is engaged with the key slot 17. To prevent hair from entering the gap between the connector 21 and the end cap 14, the collector 3 may be provided at the periphery of the connector 21, the collector 3 may be integrally formed with the connector 21, and when the collector 3 is provided at the first end 15, the collector 3 and the connector 21 are relatively stationary. In order to further prevent hairs from entering the gap between the connector 21 and the end cap 14, referring to the drawing, the hanging end 31 includes a plurality of protrusions 33 arranged at intervals in the circumferential direction of the roller brush 11, the protrusions 33 extending in the axial direction of the roller brush 11 in a direction away from the roller brush 11. Between two adjacent protrusions 33 is a recess 34, between the protrusions 33 and the recesses 34 is a guiding edge 35, which guiding edge 35 is arranged obliquely in a direction away from the roller brush 11 to connect the top wall of the protrusion 33 with the bottom wall 39 of the recess 34. When the rolling brush 11 rotates, the guiding edge 35 can guide the hair to move in a direction away from the rolling brush 11, and at this time, the hair can fall from the suspended end 31, and because the spline and the key groove 17 are stationary, the hair is accumulated there without any problem, and when a user takes off the rolling brush 11, the hair naturally falls off from the suspended end, and the user only needs to take the hair up and place the hair in a garbage can.

Referring to fig. 9, and also to fig. 8, in the present embodiment, the collector is mounted to one end portion of the roller brush, the free end 31 is provided with a recessed portion 34 recessed inward in the axial direction of the roller brush 11, the recessed portion 34 includes a guide edge, and the guide edge 35 is configured to guide the edge 35 away from the roller brush 11 in the rotational direction of the roller brush 11.

Referring to fig. 11 and 13, in another embodiment, a portion of the outer circumferential surface 42 of the free end 31 is provided with at least one groove 41, the groove 41 being formed by the outer circumferential surface 42 being recessed inwardly in the radial direction of the roller brush 11. The groove 41 includes a first slope 43 recessed downward and a second slope 44 raised upward, and the length of the second slope 44 is greater than that of the first slope 43 in the rotation direction of the roller brush 11. That is, the first slope 43 has a relatively steep slope and the second slope 44 has a relatively gentle slope, which is provided to guide the hairs wound around the free end 31 toward and away from the roller brush 11 when the roller brush 11 is rotated. In a further embodiment, the outer peripheral surface 42 of at least a portion of the free end 31 is undulated. Specifically, the outer peripheral surface 42 of the entire free end 31 has a closed-loop wave-shaped structure.

Referring to fig. 9, in one embodiment, the hanging end 31 includes a recess 34, and the recess 34 includes a first side wall 37 and a second side wall 38, and the first side wall 37 is located upstream of the second side wall 38 in the rotation direction of the roller brush 11, and the first side wall 37 is disposed obliquely in the rotation direction of the roller brush 11. The second side wall 38 is substantially parallel to the axial direction of the roller brush 11. In another embodiment, a bottom wall 39 is further included between the first side wall 37 and the second side wall 38, and the second side wall 38 may be substantially perpendicular to the bottom wall 39. The second side wall 38 may also be inclined in substantially the same direction as the first side wall 37, i.e. away from the roller brush 11.

In one embodiment, the collector 3 comprises a plurality of support structures surrounding the periphery of the connector 21. I.e. the outer surfaces of the plurality of support structures are substantially in the same cylinder, and the plurality of support structures surround the outer circumference of the connector 21. The support structure comprises a free end 31 and a fixed end 32, and the free end 31 may be the structure of any of the above embodiments, i.e. may comprise the guiding edge 35, may comprise the groove 41, and may have a zigzag or wavy structure.

Referring to fig. 15, fig. 15 is a schematic structural view of a surface cleaning apparatus in an embodiment. The invention also discloses a surface cleaning device 100, which comprises the cleaning head 10 in any one of the embodiments, and the surface cleaning device 100 can be an upright cleaning device, a handheld cleaning device or an intelligent cleaning device.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A cleaning head is characterized by comprising

A housing defining a roll brush mounting cavity;

the collector is arranged on the periphery of the connector, the collector is respectively a suspended end and a fixed end along the axial direction of the rolling brush, the fixed end is fixed on the shell, the connector is rotatably arranged on the shell, the collector defines a circular groove, and the connector is arranged in the circular groove; the suspension end extends into the rolling brush installation cavity and is in clearance fit with the first end of the rolling brush; the hanging end comprises a plurality of convex parts which are arranged at intervals along the circumferential direction of the rolling brush, a concave part is arranged between two adjacent convex parts, and a guide edge is arranged between each convex part and each concave part;

wherein the free end extends into an annular groove defined by the first end of the roller brush and is in clearance fit with the first end.

2. The cleaning head of claim 1,

the collector is an annular flange formed by extending part of the shell into the rolling brush installation cavity along the axial direction of the rolling brush.

3. The cleaning head of claim 1,

the suspended end is of a sawtooth structure, and an opening of the sawtooth structure faces the rolling brush installation cavity.

4. The cleaning head of claim 1,

the bulge extends towards the inside of the rolling brush installation cavity along the axial direction of the rolling brush.

5. The cleaning head of claim 4,

the leading edge is obliquely arranged in a direction away from the rolling brush so as to connect the top wall of the convex part and the bottom wall of the concave part.

6. The cleaning head of claim 1,

at least one groove is formed in part of the outer peripheral surface of the suspended end, and the groove is formed by inwards recessing the outer peripheral surface in the radial direction of the rolling brush.

7. The cleaning head of claim 6,

the groove comprises a first inclined plane sunken downwards and a second inclined plane lifted upwards, and the length of the second inclined plane is greater than that of the first inclined plane along the rotating direction of the rolling brush.

8. The cleaning head of claim 1,

at least part of the outer peripheral surface of the suspension end is in a wave shape.

9. The cleaning head of claim 1,

the collector includes a plurality of support structures surrounding a periphery of the connector.

10. A surface cleaning apparatus comprising a cleaning head as claimed in any one of claims 1 to 9.