Rolling brush assembly, cleaning head and cleaning equipment

Abstract

The utility model discloses a rolling brush assembly, a cleaning head and cleaning equipment, and the rolling brush assembly comprises a rolling brush which is hollow and can rotate; the damping element is arranged in the rolling brush, the damping element comprises a cylinder body and particles, a cavity is formed in the cylinder body, the cavity is filled with the particles, and the cylinder body is connected with the rolling brush so that the cylinder body can rotate along with the rolling brush and drive the particles to move relative to the cylinder body. The damping element is arranged in the rolling brush assembly and can rotate along with the rolling brush, vibration energy of the rolling brush is converted into heat energy and other energy to be dissipated, structural vibration is remarkably reduced, then low-frequency noise generated in the operation process of the cleaning equipment is reduced, and user experience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a roller brush assembly, a cleaning head, and a cleaning device. Background Technology

[0002] The floor brush of a vacuum cleaner cleans the floor by rotating a roller brush to disperse dust. During operation, the motor drives the roller brush to rotate and vibrate against the floor, which causes low-frequency noise to be generated during operation, seriously affecting the user experience. Summary of the Invention

[0003] The purpose of this application is to provide a roller brush assembly, a cleaning head, and a cleaning device to reduce structural vibration during roller brush operation, reduce low-frequency noise generated during cleaning device operation, and improve user experience.

[0004] To achieve the above objectives, a first aspect of this application provides a roller brush assembly, comprising:

[0005] A rotating brush with a hollow interior.

[0006] A damping element is disposed inside the roller brush. The damping element includes a cylinder with a cavity formed inside and particles filled inside the cavity. The cylinder is connected to the roller brush so that the cylinder can rotate with the roller brush and drive the particles to move relative to the cylinder.

[0007] In one or more embodiments, a first insertion structure is arranged on the cylinder, and a first mating insertion structure is arranged on the inner wall of the roller brush. The first insertion structure and the first mating insertion structure cooperate to circumferentially limit the cylinder and the roller brush.

[0008] In one or more embodiments, the cylinder extends axially along the roller brush, and the first insertion structure includes at least one first slot arranged circumferentially on the outer wall of the cylinder, the first slot extending axially along the cylinder; the first mating insertion structure includes at least one first rib matching the position and shape of the at least one first slot.

[0009] In one or more embodiments, the particle size is less than or equal to 3 mm.

[0010] In one or more embodiments, the particles are one or more combinations of metal particles, ceramic particles, glass particles, sand, and cement particles.

[0011] In one or more embodiments, the volume of the portion of the cavity filled with the particles accounts for 50% to 100% of the cavity volume.

[0012] In one or more embodiments, the cylinder includes:

[0013] outer cylinder;

[0014] An inner cylinder is arranged inside the outer cylinder, and an annular gap is formed between the inner cylinder and the outer cylinder;

[0015] A cover plate is provided at the end of the outer cylinder and closes the annular gap;

[0016] The outer cylinder inner wall, the inner cylinder outer wall, and the cover plate cooperate to form the cavity.

[0017] In one or more embodiments, the cover plate includes a first cover plate located at one end of the outer cylinder and a second cover plate located at the other end of the outer cylinder. The first cover plate is detachable. The inner wall of the inner cylinder is provided with a second insertion structure. The side of the first cover plate facing the inner cylinder is provided with a first limiting tube. The outer wall of the first limiting tube is provided with a second interlocking insertion structure.

[0018] The second plug-in structure and the second mating plug-in structure cooperate to circumferentially limit the inner cylinder and the cover plate.

[0019] In one or more embodiments, the cover plate includes a first cover plate located at one end of the outer cylinder and a second cover plate located at the other end of the outer cylinder. The first cover plate is detachable. In the axial direction of the roller brush, an axial gap is formed between the end face of the inner cylinder facing the first cover plate and the end face of the outer cylinder. The side of the first cover plate facing the inner cylinder is provided with a boss that matches the axial gap. The boss is embedded inside the outer cylinder, and the end face of the boss is fitted to the end face of the inner cylinder.

[0020] In one or more embodiments, the damping element further includes at least one baffle disposed within the cavity, the at least one baffle dividing the cavity into a plurality of sub-cavities, the particles being disposed within the plurality of sub-cavities.

[0021] In one or more embodiments, the roller brush assembly further includes:

[0022] A first end cap is provided on one end of the roller brush near the second mounting cavity;

[0023] A drive motor is arranged inside the roller brush. The drive motor includes an output shaft and a fixed shaft located at both ends. The end of the fixed shaft is connected to the first end cover.

[0024] An adapter, disposed inside the roller brush and connected to the output shaft, has a fourth insertion structure arranged on its outer wall.

[0025] The roller brush has a fourth interlocking structure inside, which cooperates with the adapter and the roller brush to circumferentially limit their movement.

[0026] In one or more embodiments, the fourth plug-in structure includes at least one protruding ridge arranged circumferentially, and the fourth mating plug-in structure includes a plurality of plug tabs arranged circumferentially spaced apart, with a slot formed between adjacent plug tabs to match the protruding ridge.

[0027] The insert includes a second extension section and a second guide section arranged sequentially along the direction pointing towards the drive motor. The width of the second guide section gradually increases in the direction away from the drive motor, so that a guide end face that is axially inclined relative to the roller brush is formed at the end of the second guide section facing the drive motor.

[0028] In one or more embodiments, the roller brush assembly further includes a heat dissipation element disposed inside the roller brush, and the outer wall of the heat dissipation element is provided with a third plug-in structure.

[0029] The inner wall of the roller brush is provided with a third interlocking structure, which cooperates with the third interlocking structure to circumferentially limit the heat dissipation element and the roller brush.

[0030] In one or more embodiments, the roller brush further includes a first thrust plate disposed inside, the first thrust plate dividing the interior of the roller brush into a first mounting cavity and a second mounting cavity, and the first thrust plate is provided with a second opening, the heat dissipation element and the drive motor are respectively disposed in the first mounting cavity and the second mounting cavity, at least one of the damping elements is disposed between the heat dissipation element and the first thrust plate, and the damping element has a through heat dissipation channel formed inside.

[0031] In one or more embodiments, the first end cap has a second limiting tube inserted into the roller brush on the side facing the roller brush, a limiting protrusion is arranged on the fixed shaft, and the roller brush assembly further includes a second bearing arranged between the fixed shaft and the inner wall of the roller brush, the second limiting tube and the limiting protrusion cooperating to axially position the second bearing.

[0032] In one or more embodiments, the first end cap has a second limiting tube inserted into the roller brush on the side facing the roller brush. The roller brush assembly also includes a second bearing disposed between the fixed shaft and the inner wall of the roller brush. The second bearing includes a fixed ring connected to the fixed shaft and a movable ring connected to the inner wall of the roller brush. The fixed ring abuts against the second limiting tube on the side facing the first end cap.

[0033] The fixed shaft is provided with a limiting protrusion located on the side of the second bearing away from the first end cover, and the side of the fixed ring away from the first end cover abuts against the limiting protrusion.

[0034] In one or more embodiments, at least one of the damping elements is sleeved on the fixed shaft and located on the side of the second bearing away from the first end cover. The side of the movable ring away from the first end cover abuts against the damping element. A second thrust plate is also arranged inside the roller brush on the side of the damping element away from the first end cover. The side of the damping element away from the first end cover abuts against the second thrust plate.

[0035] To achieve the above objectives, a second aspect of this application provides a cleaning head, including a housing and a roller brush assembly as described in any of the above embodiments.

[0036] To achieve the above objectives, a third aspect of this application provides a cleaning device, including a body and a cleaning head as described in any of the above embodiments.

[0037] The advantages of this application, which differ from existing technologies, are:

[0038] The roller brush assembly of this application has a built-in damping element that can rotate with the roller brush and convert the vibration energy of the roller brush into heat energy and other energy dissipation, significantly reducing structural vibration, thereby reducing low-frequency noise generated during the operation of the cleaning equipment and improving the user experience. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a cross-sectional structural schematic diagram of one embodiment of the roller brush assembly of this application;

[0041] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle AA surface;

[0042] Figure 3 This is an exploded structural diagram of one embodiment of the damping element of this application;

[0043] Figure 4 This is an exploded structural diagram of another embodiment of the damping element in this application;

[0044] Figure 5This is a cross-sectional structural schematic diagram of one embodiment of the damping element of this application;

[0045] Figure 6 This is a schematic diagram of one embodiment of the heat dissipation element of this application;

[0046] Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle BB surface;

[0047] Figure 8 This is a schematic diagram of one embodiment of the roller brush of this application;

[0048] Figure 9 yes Figure 1 Schematic diagram of the cross-sectional structure of the C-plane;

[0049] Figure 10 This is a schematic diagram of one embodiment of the adapter of this application;

[0050] Figure 11 This is a cross-sectional structural schematic diagram of one embodiment of the roller brush of this application;

[0051] Figure 12 This is a cross-sectional view of another embodiment of the roller brush assembly of this application;

[0052] Figure 13 This is a schematic diagram of one embodiment of the cleaning head of this application.

[0053] Explanation of key figure labels:

[0054] Roller brush assembly 10;

[0055] Roller brush 100; bristle strip 101; first interlocking structure 102; first rib 1021; first thrust plate 103; second opening 1031; first mounting cavity 104; second mounting cavity 105; third interlocking structure 106; third rib 1061; fourth interlocking structure 107; plug-in piece 1071; second extension section 10711; second guide section 10712; guide end face 10713; slot 1072; second thrust plate 108;

[0056] Damping elements 200a, 200b; cylinder 201; first plug-in structure 2011; first slot 20111; outer cylinder 2012; inner cylinder 2013; first cover plate 2014; first openings 20141, 20151; boss 20142; first limiting tube 20143; second cover plate 2015; heat dissipation channel 2016; partition 2017; second plug-in structure 2018; second slot 20181; second interlocking plug-in structure 2019; second rib 20191; cavity 202; sub-cavity 2021; annular gap 203; axial gap 204;

[0057] Heat dissipation element 300; sleeve 301; mounting base 302; shaft 303; blade 304; third plug-in structure 305; third slot 3051; first extension section 30511; first guide section 30512;

[0058] Second end cap 400; First bearing 401;

[0059] Drive motor 500; output shaft 501; fixed shaft 502; limit protrusion 5021;

[0060] Adapter 600; fourth plug-in structure 601; protruding rib 6011; V-shaped guide structure 60111; first guide surface 60112; second guide surface 60113;

[0061] First end cap 700; Second limiting tube 701;

[0062] Second bearing 800; fixed ring 801; movable ring 802;

[0063] Casing 20. Detailed Implementation

[0064] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0065] To reduce low-frequency noise during the operation of floor brushes, the applicant has developed a roller brush assembly that can be applied to cleaning equipment such as vacuum cleaners. The roller brush assembly has a built-in damping element that can convert vibration energy into other forms of energy when the roller brush rotates, thereby reducing structural vibration, reducing low-frequency noise, and improving the user experience.

[0066] Specifically, please refer to Figure 1 , Figure 1 This is a cross-sectional structural schematic diagram of one embodiment of the roller brush assembly of this application.

[0067] like Figure 1 As shown, the roller brush assembly 10 includes a roller brush 100 with a hollow interior and a damping element 200a located inside the roller brush 100.

[0068] The roller brush 100 has a cylindrical structure with a hollow interior. The outer wall of the roller brush 100 is equipped with bristle strips 101. When the roller brush 100 rotates, the bristle strips 101 can contact the surface to be cleaned, thereby playing a role in dust agitation.

[0069] The damping element 200a is locked to the roller brush 100 in the circumferential direction so that the damping element 200a can rotate with the roller brush 100 to perform damping and shock absorption.

[0070] Specifically, in this embodiment, the damping element 200a includes a cylindrical body 201, inside which a cavity 202 is formed, and the cavity 202 is filled with particles (not shown in the figure).

[0071] The cylinder 201 can be connected to the roller brush 100 so that the cylinder 201 can rotate with the roller brush 100 and drive the particles to move relative to the cylinder 201.

[0072] Understandably, when the cylinder 201 rotates and drives the particles to move relative to the cylinder 201, collisions and friction will occur between the particles and between the particles and the cylinder 201. The particles continuously exchange momentum with the cylinder 201 and the roller brush 100, thereby converting the vibration energy of the roller brush 100 into heat energy and other forms of energy to dissipate, thereby reducing structural vibration and reducing the low-frequency rumbling noise generated during the operation of the floor brush.

[0073] In one embodiment, the particles filling the cavity 202 may be one or more combinations of metal particles, ceramic particles, glass particles, sand, and cement particles. Preferably, in order to improve heat dissipation, the particles may be metal particles.

[0074] In one embodiment, in order to ensure the damping effect, the particle size can be less than or equal to 3 mm, preferably, the particle size can be 1 mm.

[0075] In one embodiment, in order to ensure the damping effect, the volume of the part of the particle cavity 202 filled with particles accounts for 50% to 100% of the volume of the cavity 202, preferably 90%.

[0076] The following section details the circumferential limiting structure of the damping element 200a and the roller brush 100. Please refer to [link / reference]. Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the AA plane.

[0077] like Figure 2 As shown, the cylinder 201 of the damping element 200a is provided with a first insertion structure 2011, and the inner wall of the roller brush 100 is provided with a first mating insertion structure 102. The first insertion structure 2011 and the first mating insertion structure 102 cooperate to circumferentially limit the cylinder 201 and the roller brush 100, so that the cylinder 201 can rotate with the roller brush 100 and drive the particles to move relative to the cylinder 201.

[0078] Specifically, in this embodiment, the first plug-in structure 2011 includes three first slots 20111 arranged circumferentially, and the first slots 20111 extend along the axial direction x; the first mating plug-in structure 102 includes three first ribs 1021 that match the position and shape of the first slots 20111; the cooperation of the first slots 20111 and the first ribs 1021 can limit the position of the roller brush 100 and the damping element 200a in the circumferential direction.

[0079] Understandably, in other embodiments, the first plug-in structure 2011 and the first mating plug-in structure 102 may also adopt other mating locking structures commonly used in the art. Alternatively, the first plug-in structure 2011 may be a rib, the first mating plug-in structure 102 may be a groove, or the first plug-in structure 2011 may include other numbers of first slots 20111. The circumferential arrangement spacing of the first slots 20111 may also be set based on actual needs, all of which can achieve the effect of this embodiment.

[0080] The structure of the damping element 200a of this application is described in detail below. Please refer to [link / reference]. Figures 3 to 5 , Figure 3 This is an exploded structural diagram of one embodiment of the damping element of this application. Figure 4 This is an exploded structural diagram of one embodiment of the damping element in this application from another perspective. Figure 5 This is a cross-sectional structural schematic diagram of one embodiment of the damping element of this application.

[0081] like Figure 3 As shown, in order to facilitate the heat dissipation of the damping element 200a, in this embodiment, the cylinder 201 includes an outer cylinder 2012 and an inner cylinder 2013 arranged inside the outer cylinder 2012, and an annular gap 203 is formed between the outer cylinder 2012 and the inner cylinder 2013.

[0082] The cylinder 201 also includes a first cover plate 2014 and a second cover plate 2015 arranged at both ends of the outer cylinder 2012. The first cover plate 2014 and the second cover plate 2015 can close the annular gap 203, so that the inner wall of the outer cylinder 2012, the outer wall of the inner cylinder 2013, the first cover plate 2014 and the second cover plate 2015 can form a cavity 202.

[0083] In this embodiment, the first cover plate 2014 and the second cover plate 2015 are respectively formed with first openings 20141 and 20151 that match the central channel of the inner cylinder 2013, thereby forming a through heat dissipation channel 2016 inside the damping element 200a. The heat dissipation channel 2016 can optimize the heat dissipation efficiency of the damping element 200a itself, and can also connect the two sides of the damping element 200a inside the roller brush 100, which helps to optimize the heat dissipation efficiency of other structures built into the roller brush 100. Especially in the application scenario where the roller brush 100 has a built-in motor, the heat dissipation channel 2016 of the damping element 200a can ensure the smooth flow of axial heat dissipation airflow of the motor.

[0084] It should be noted that, in order to enable the damping element 200a to be inserted and installed inside the roller brush 100, in the above structure, the first slot 20111 for circumferential positioning can extend from one end of the outer cylinder 2012 to the other end, and extend to the first cover plate 2014 and the second cover plate 2015.

[0085] In order to optimize heat dissipation performance while ensuring that the cavity 202 has enough space to accommodate a sufficient amount of particles, the ratio of the inner diameter of the inner cylinder 2013 to the outer diameter of the outer cylinder 2012 can be 1 / 3 to 1 / 4, preferably 1 / 4.

[0086] In addition, in this embodiment, the second cover plate 2015 on one side is fixedly installed, while the first cover plate 2014 on the other side is detachably installed. In other embodiments, both the first cover plate 2014 and the second cover plate 2015 on both sides can be detachably installed. In particular, in this embodiment, the second cover plate 2015 is fixed to the end of the outer cylinder, thereby maximizing the space of the cavity 202. In other embodiments, the second cover plate 2015 can also be arranged at other positions of the outer cylinder 2012, such as the middle of the outer cylinder 2012, so as to adjust the size of the cavity 202 according to actual needs. Alternatively, when the second cover plate 2015 is located inside the outer cylinder 2012, both ends of the outer cylinder 2012 can be provided with detachable first cover plates 2014, thereby forming cavities 202 for accommodating particles on both sides of the second cover plate 2015 to ensure the uniform distribution of particles in the axial direction.

[0087] To improve the uniformity of particle distribution and ensure consistent damping effect throughout, in this embodiment, the cylinder 201 further includes five partitions 2017 arranged between the outer cylinder 2012 and the inner cylinder 2013. The partitions 2017 extend radially and are evenly spaced circumferentially, thereby dividing the cavity 202 into five sub-cavities 2021, in which the particles can be evenly distributed.

[0088] Understandably, in other embodiments, the cavity 202 can also be divided into other numbers of sub-cavities 2021, such as 4 or 6. Preferably, the number of sub-cavities 2021 can be 4 to 6, and most preferably, the number of sub-cavities 2021 can be 5, thereby ensuring the damping and shock absorption effect of each sub-cavity while ensuring the uniform distribution of particles.

[0089] Furthermore, such as Figure 4 As shown, to ensure the airtightness of the cavity 202, the first cover plate 2014 has a boss 20142 on the side facing the inner cylinder 2013. Correspondingly, as... Figure 5 As shown, an axial gap 204 is formed between the end of the inner cylinder 2013 near the first cover plate 2014 and the end face of the outer cylinder 2012.

[0090] The boss 20142 is embedded in the axial gap 204, and the end face of the boss 20142 is fitted to the end face of the inner cylinder 2013. The cooperation between the boss 20142 and the inner cylinder 2013 ensures the sealing of the cavity 202.

[0091] In this embodiment, the height of the boss 20142 and the depth of the axial clearance 204 can be 0.5mm; in other embodiments, the height of the boss 20142 and the depth of the axial clearance 204 can also be adjusted according to actual needs.

[0092] In order to fix the first cover plate 2014, such as Figure 3 As shown, in this embodiment, the inner wall of the inner cylinder 2013 is provided with a second insertion structure 2018, such as... Figure 4 As shown, a first limiting tube 20143 is arranged on the side of the first cover plate 2014 facing the inner cylinder 2013 at the position corresponding to the first opening 20141. A second interlocking insertion structure 2019 is arranged on the outer wall of the first limiting tube 20143. The second insertion structure 2018 and the second interlocking insertion structure 2019 cooperate to circumferentially limit the inner cylinder 2013 and the first cover plate 2014, so that the first cover plate 2014 can rotate synchronously with the inner cylinder 2013.

[0093] Specifically, in this embodiment, the second plug-in structure 2018 includes three second slots 20181 arranged circumferentially, the second slots 20181 extending along the axial x of the inner cylinder 2013, and the second mating plug-in structure 2019 includes three second ribs 20191 that match the position and shape of the second slots 20181.

[0094] Understandably, in other embodiments, the second plug-in structure 2018 and the second mating plug-in structure 2019 may also adopt other mating locking structures commonly used in the art. Alternatively, the second plug-in structure 2018 may be a rib, the second mating plug-in structure 2019 may be a groove, or the second plug-in structure 2018 may include other numbers of second slots 20181. The circumferential arrangement spacing of the second slots 20181 may also be set based on actual needs, all of which can achieve the effect of this embodiment.

[0095] To ensure the installation stability of the first cover plate 2014, in this embodiment, the second slot 20181 extends from the end of the inner cylinder 2013 near the first cover plate 2014 in a direction away from the first cover plate 2014, and the extension length of the second slot 20181 is 1 / 3 to 1 / 4 of the extension length of the inner cylinder 2013. Optimally, the extension length of the second slot 20181 is 1 / 4 of the extension length of the inner cylinder 2013.

[0096] The first plug-in structure 2011 and the first mating plug-in structure 102 in the above embodiments realize the circumferential positioning of the damping element 200a and the roller brush 100, and the second plug-in structure 2018 and the second mating plug-in structure 2019 realize the circumferential positioning of the inner cylinder 2013 and the first cover plate 2014. The axial positioning structure of the damping element 200a inside the roller brush 100 will be described below.

[0097] Please continue reading. Figure 1 ,like Figure 1 As shown, in this embodiment, the roller brush 100 also has a built-in drive motor 500. One end of the roller brush 100 is provided with a first end cover 700. The drive motor 500 is mounted on the first end cover 700 and can drive the roller brush 100 to rotate.

[0098] In order to optimize the heat dissipation performance of the drive motor 500 and simultaneously achieve the axial positioning of the damping element 200a, in this embodiment, the roller brush assembly 10 further includes a heat dissipation element 300 arranged inside the roller brush 100. The heat dissipation element 300 is used for the axial positioning of the damping element 200a on the one hand, and also for forming an axial heat dissipation airflow inside the roller brush 100 on the other hand, which will be described in detail below.

[0099] In this embodiment, a first thrust plate 103 is arranged inside the roller brush 100. The first thrust plate 103 divides the inside of the roller brush 100 into a first mounting cavity 104 and a second mounting cavity 105. A second opening 1031 matching the heat dissipation channel 2016 of the damping element 200a is also arranged on the first thrust plate 103.

[0100] The damping element 200a is arranged in the first mounting cavity 104 and abuts against the first thrust plate 103.

[0101] The roller brush assembly 10 also includes a second end cap 400 covering the other end of the roller brush 100, and a first bearing 401 is arranged on the end of the second end cap 400 facing the inside of the roller brush 100.

[0102] The heat dissipation element 300 is arranged in the first mounting cavity 104 and connected to the first bearing 401. At the same time, the heat dissipation element 300 is abutted against the damping element 200a, so that the heat dissipation element 300 and the first thrust plate 103 can cooperate to axially position the damping element 200a.

[0103] The heat dissipation element 300 is connected to the roller brush 100 so that the heat dissipation element 300 can rotate with the roller brush 100 to generate axial heat dissipation airflow.

[0104] Understandably, the heat dissipation element 300 is mounted on the second end cover 400 via the first bearing 401, and the damping element 200a is pressed and limited on the first thrust plate 103, thereby achieving axial positioning of the damping element 200a. When the roller brush 100 rotates, the damping element 200a converts the vibration energy of the roller brush 100 into heat, etc., and the heat dissipation element 300 rotates synchronously to generate axial heat dissipation airflow, thereby achieving synchronous heat dissipation and significantly optimizing the heat dissipation effect.

[0105] The structure of the heat dissipation element 300 of this application is described in detail below. Please refer to [link / reference]. Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of one embodiment of the heat dissipation element of this application. Figure 7 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle BB plane.

[0106] like Figure 6 and Figure 7 As shown, the heat dissipation element 300 includes a sleeve 301 and a mounting base 302 arranged at the center of the sleeve 301. A through shaft 303 is arranged at the center of the mounting base 302. The shaft 303 is connected to the first bearing 401. A plurality of circumferentially distributed blades 304 are arranged between the sleeve 301 and the mounting base 302. When the sleeve 301 rotates, it can drive the blades 304 to rotate, generating an axial heat dissipation airflow.

[0107] Furthermore, the outer wall of the sleeve 301 is provided with a third insertion structure 305, and the inner wall of the roller brush 100 is provided with a third mating insertion structure 106. The third insertion structure 305 and the third mating insertion structure 106 cooperate with the circumferentially limiting heat dissipation element 300 and the roller brush 100.

[0108] Specifically, in this embodiment, the third plug-in structure 305 includes a plurality of third slots 3051 arranged circumferentially, and the third mating plug-in structure 106 includes a plurality of third ribs 1061 that match the position and shape of the third slots 3051 one by one.

[0109] Understandably, in other embodiments, the third plug-in structure 305 and the third mating plug-in structure 106 may also adopt other mating locking structures commonly used in the art, or the third plug-in structure 305 may also be a rib, the third mating plug-in structure 106 may also be a groove, or the third plug-in structure 305 may also include other numbers of third slots 3051, and the circumferential arrangement spacing of the third slots 3051 may also be set based on actual needs, all of which can achieve the effect of this embodiment.

[0110] To avoid interference from the third rib 1061 during the plug-in installation of the damping element 200a, please refer to [link / reference needed]. Figure 8 , Figure 8 This is a schematic diagram of a structure of one embodiment of the roller brush of this application. In this embodiment, the third rib 1061 and the second rib 20191 are connected as one unit, and the damping element 200a can be slidably fitted to the second rib 20191 via the third rib 1061 to achieve plug-in installation.

[0111] Of course, in other embodiments, a gap can also be formed between the first mating plug-in structure 102 and the third mating plug-in structure 106, as long as the orthogonal projections of the first mating plug-in structure 102 and the third mating plug-in structure 106 overlap in the axial direction. This can avoid the third mating plug-in structure interfering with the insertion of the damping element 200a in the axial direction. Alternatively, the third mating plug-in structure 106 can be set as a groove to avoid affecting the installation of the damping element 200a, which can also achieve the effect of this embodiment.

[0112] Please continue reading. Figure 6 To facilitate the insertion and installation of the heat dissipation element 300, the third slot 3051 on the outer wall of the sleeve 301 includes a first extension section 30511 and a first guide section 30512 arranged sequentially along the axial direction x. The width of the first guide section 30512 gradually increases in the direction away from the first extension section 30511, so that the heat dissipation element 300 can be slid into place by the guiding effect of the first guide section 30512.

[0113] The mounting structure of the drive motor 500 in this application is described in detail below. Please refer to the following section. Figure 1 In this embodiment, the drive motor 500 is arranged in the second mounting cavity 105, and the drive motor 500 includes an output shaft 501 and a fixed shaft 502 respectively disposed at both ends. The end of the fixed shaft 502 is connected to the first end cover 700.

[0114] An adapter 600 is also arranged on the output shaft 501. A fourth plug-in structure 601 is arranged on the outer wall of the adapter 600, and a fourth mating plug-in structure 107 is arranged on the inner wall of the roller brush 100. The fourth plug-in structure 601 and the fourth mating plug-in structure 107 cooperate with the circumferential limiting adapter 600 and the roller brush 100.

[0115] Understandably, in this embodiment, the drive motor 500 is mounted on the first end cover 700 via the fixed shaft 502, and drives the adapter 600 to rotate via the output shaft 501. The adapter 600 drives the roller brush 100 to rotate via the mating structure of the fourth plug-in structure 601 and the fourth mating plug-in structure 107, thereby realizing the rotation drive of the roller brush 100.

[0116] In addition, in this embodiment, the drive motor 500 is installed in the second mounting cavity 105. In other embodiments, the drive motor 500 can also be installed in other positions, as long as it can realize the rotation drive of the roller brush 100, and all of them can achieve the effect of this embodiment.

[0117] The fourth plug-in structure 601 and the fourth interlocking plug-in structure 107 of this application are described in detail below. Please refer to [link / reference]. Figures 9 to 11 , Figure 9 yes Figure 1 A cross-sectional view of the C-plane. Figure 10 This is a schematic diagram of one embodiment of the adapter of this application. Figure 11 This is a cross-sectional structural diagram of one embodiment of the roller brush of this application.

[0118] like Figures 9 to 11 As shown, the fourth plug-in structure 601 includes a plurality of protruding ribs 6011 arranged circumferentially, and the fourth mating plug-in structure 107 includes a plurality of plug-in pieces 1071 arranged circumferentially at intervals, and a slot 1072 matching the protruding ribs 6011 is formed between adjacent plug-in pieces 1071.

[0119] Specifically, in this embodiment, the inner wall of the roller brush 100 is provided with 12 insert pieces 1071 evenly spaced along the circumference. Adjacent insert pieces 1071 can form an angle of approximately 30°. Correspondingly, the two sides of the protrusion 6011 can form matching angles. In other embodiments, the inner wall of the roller brush 100 can also be provided with other numbers of insert pieces 1071. Preferably, 10 to 14 insert pieces 1071 can be provided, and most preferably, 12 insert pieces 1071 can be provided.

[0120] In addition, to ensure strength, the thickness of the insert can be 1.5 to 3 mm, preferably 2 mm.

[0121] Because the adapter plate is blocked by the roller brush 100 when the roller brush 100 is installed in the axial x direction, in order to facilitate the user's disassembly and assembly of the roller brush 100, such as Figure 11As shown, in this embodiment, the plug-in piece 1071 includes a second extension section 10711 and a second guide section 10712 arranged sequentially along the direction pointing towards the drive motor 500. The width of the second guide section 10712 gradually increases in the direction away from the drive motor 500, so that a guide end face 10713 inclined relative to the axial x of the roller brush 100 is formed at the end of the second guide section 10712 facing the drive motor 500.

[0122] Understandably, the inclined guide end face 10713, when in contact with the surface of the protruding ridge 6011, can guide the protruding ridge 6011 into the slot 1072, thereby facilitating the user's disassembly and assembly of the roller brush 100.

[0123] To ensure the guiding effect, an angle of 120 to 150 degrees can be formed between the guide end face 10713 and the axial x of the roller brush 100, and more preferably, an angle of 135 degrees can be formed.

[0124] Furthermore, such as Figure 10 As shown, in this embodiment, the protruding rib 6011 on the surface of the adapter 600 extends along the axial x, and the end face of the protruding rib 6011 facing away from the drive motor 500 includes a first guide surface 60112 and a second guide surface 60113 that are inclined relative to the axial x. The first guide surface 60112 and the second guide surface 60113 cooperate to form a V-shaped guide structure 60111.

[0125] Understandably, based on the V-shaped guide structure 60111 on the surface of the protrusion 6011 and the guide end face 10713 on the plug-in piece 1071, the protrusion 6011 can be effectively guided into the slot of the adjacent plug-in piece 1071 when the roller brush 100 is plugged in, while ensuring the circumferential limit between the roller brush 100 and the adapter 600.

[0126] In addition, to further improve the axial x-mount stability of the drive motor 500, please refer to [link / reference needed]. Figure 1 In this embodiment, the end of the adapter 600 is also abutting against the first thrust plate 103.

[0127] Since the fixed shaft 502 of the drive motor 500 has a long extension length and is fixed only at both ends, in order to further optimize the structure and improve its installation stability, in this embodiment, a second bearing 800 is also arranged between the fixed shaft 502 and the inner wall of the roller brush 100. The second bearing 800 includes a fixed ring 801 connected to the fixed shaft 502 and a movable ring 802 connected to the inner wall of the roller brush 100, so as to effectively support the fixed shaft 502 without affecting the rotational movement of the roller brush 100 and ensure the installation stability of the fixed shaft 502.

[0128] In order to achieve axial positioning of the second bearing 800, in this embodiment, a second positioning tube 701 is arranged on the side of the first end cover 700 facing the roller brush 100 and inserted into the roller brush 100. A positioning protrusion 5021 is arranged on the fixed shaft 502. The side of the fixing ring 801 facing the first end cover 700 abuts against the second positioning tube 701, and the side of the fixing ring 801 away from the first end cover 700 abuts against the positioning protrusion 5021, so that the second positioning tube 701 and the positioning protrusion 5021 can cooperate to axially position the second bearing 800.

[0129] Based on the structure of the roller brush assembly 10 in the above embodiments, the fixedly installed drive motor 500 can drive the adapter 600 to rotate. The adapter 600 drives the roller brush 100 to rotate through the fourth plug-in structure 601 and the fourth mating plug-in structure 107. The roller brush 100 drives the damping element 200a to rotate through the first plug-in structure 2011 and the first mating plug-in structure 102 to achieve damping and shock reduction, converting the vibration energy of the roller brush 100 into heat, thereby effectively reducing the low-frequency noise during the operation of the roller brush 100 and improving the user experience. Simultaneously, the roller brush 100 also drives the heat dissipation element 300 to rotate through the third plug-in structure 305 and the third mating plug-in structure 106 to form an axial heat dissipation airflow, thereby effectively dissipating the heat inside the roller brush 100.

[0130] In the above embodiments, the roller brush assembly 10 includes only one damping element 200a arranged in the first mounting cavity 104. In other embodiments, the damping element 200a of the roller brush assembly 10 may also be arranged in other positions, or the roller brush assembly 10 may also include multiple damping elements 200a arranged in the same or different positions, all of which can achieve the effect of this embodiment.

[0131] For example, please refer to Figure 12 , Figure 12 This is a cross-sectional structural schematic diagram of another embodiment of the roller brush assembly of this application.

[0132] like Figure 12 As shown, in this embodiment, a damping element 200b is also arranged in the second mounting cavity 105 of the roller brush assembly 10. The damping element 200b is arranged between the drive motor 500 and the first end cover 700, and the fixed shaft 502 passes through the damping element 200b.

[0133] The movable ring 802 of the second bearing 800, facing away from the first end cover 700, is abutted against the damping element 200b, so that the damping element 200b can cooperate with the second limiting tube 701 to axially position the second bearing 800.

[0134] Furthermore, in order to achieve axial positioning of the damping element 200b in this embodiment, a second thrust plate 108 is also arranged inside the roller brush 100 on the side of the damping element 200b away from the first end cover 700. The side of the damping element 200b away from the first end cover 700 is in contact with the second thrust plate 108, so that the second thrust plate 108 can cooperate with the second bearing 800 to axially position the damping element 200b.

[0135] Based on the above structural design, on the one hand, the second bearing 800 and the second thrust plate 108 can cooperate with the axial positioning damping element 200b; on the other hand, the second limiting tube 701 and the damping element 200b can cooperate with the axial positioning of the second bearing 800, thereby simultaneously achieving the axial positioning of the damping element 200b and the second bearing 800.

[0136] It should be noted that the above Figure 1 and Figure 12 The two embodiments shown are merely illustrative examples. In other embodiments, the roller brush assembly may only include the damping element 200b arranged in the second mounting cavity 105, or the second bearing 800 may be omitted, and the damping element 200a may be directly mounted on the first end cover 700 via the bearing, or the heat dissipation element 300 may be omitted, and the damping element 200a may be directly mounted on the second end cover 400 via the bearing, etc., all of which can achieve the vibration reduction and noise reduction effect of this application.

[0137] This application also provides a cleaning head, please refer to... Figure 13 , Figure 13 This is a schematic diagram of the structure of one embodiment of the cleaning head of this application, as shown below. Figure 13 As shown, the cleaning head includes a roller brush assembly 10 according to any of the above embodiments and a housing 20 for mounting the roller brush assembly 10.

[0138] In one embodiment, the first end cap 700 or the second end cap 400 of the roller brush assembly 10 may be connected together with the housing 20.

[0139] In one embodiment, the cleaning head can be used as a floor brush in cleaning equipment such as a vacuum cleaner or floor scrubber. In other embodiments, it can also be used as a cleaning head for other surfaces to be cleaned, such as mattresses, car interiors, etc., all of which can achieve the effect of this embodiment.

[0140] This application also provides a cleaning device, which includes a body and a cleaning head according to any of the above embodiments.

[0141] In one embodiment, the cleaning device can be a vacuum cleaner, floor scrubber, or other device that uses a roller brush 100 to lift and absorb dust from the surface to be cleaned. In other embodiments, it can be any device that can apply the roller brush assembly 10 of any of the above embodiments, and all of them can achieve the effect of this embodiment.

[0142] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0143] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rolling brush assembly, characterized by, include: A rotating brush with a hollow interior. A damping element is disposed inside the roller brush. The damping element includes a cylinder with a cavity formed inside and particles filled inside the cavity. The cylinder is connected to the roller brush so that the cylinder can rotate with the roller brush and drive the particles to move relative to the cylinder.

2. The roll brush assembly of claim 1, wherein, The cylinder is provided with a first insertion structure, and the inner wall of the roller brush is provided with a first interlocking insertion structure. The first insertion structure and the first interlocking insertion structure cooperate to limit the cylinder and the roller brush in the circumferential direction.

3. The roll brush assembly of claim 2, wherein, The cylindrical body extends axially along the roller brush. The first insertion structure includes at least one first slot arranged circumferentially on the outer wall of the cylindrical body, the first slot extending axially along the cylindrical body. The first mating insertion structure includes at least one first rib matching the position and shape of the at least one first slot; and / or, The particle size is less than or equal to 3 mm; and / or, The particles are one or more combinations of metal particles, ceramic particles, glass particles, sand, and cement particles; and / or, The volume of the cavity filled with the particles accounts for 50% to 100% of the cavity volume.

4. The roll brush assembly of claim 1, wherein, The cylindrical body includes: outer cylinder; An inner cylinder is arranged inside the outer cylinder, and an annular gap is formed between the inner cylinder and the outer cylinder; A cover plate is provided at the end of the outer cylinder and closes the annular gap; The outer cylinder inner wall, the inner cylinder outer wall, and the cover plate cooperate to form the cavity.

5. The roll brush assembly of claim 4, wherein, The cover plate includes a first cover plate located at one end of the outer cylinder and a second cover plate located at the other end of the outer cylinder. The first cover plate is detachable. The inner wall of the inner cylinder is provided with a second insertion structure. The side of the first cover plate facing the inner cylinder is provided with a first limiting tube. The outer wall of the first limiting tube is provided with a second interlocking insertion structure. The second plug-in structure and the second mating plug-in structure cooperate to circumferentially limit the inner cylinder and the cover plate.

6. The roll brush assembly of claim 4, wherein, The cover plate includes a first cover plate located at one end of the outer cylinder and a second cover plate located at the other end of the outer cylinder. The first cover plate is detachable. In the axial direction of the roller brush, an axial gap is formed between the end face of the inner cylinder facing the first cover plate and the end face of the outer cylinder. The side of the first cover plate facing the inner cylinder is provided with a boss that matches the axial gap. The boss is embedded inside the outer cylinder, and the end face of the boss is fitted to the end face of the inner cylinder.

7. The roll brush assembly of any of claims 1 to 6, wherein, The damping element further includes at least one baffle disposed within the cavity, the at least one baffle dividing the cavity into multiple sub-cavities, and the particles being disposed within the multiple sub-cavities.

8. The roll brush assembly of claim 1, wherein, Also includes: The first end cap is installed on one end of the roller brush; A drive motor is arranged inside the roller brush. The drive motor includes an output shaft and a fixed shaft located at both ends. The fixed shaft is connected to the first end cover. An adapter is arranged inside the roller brush and connected to the output shaft, and a fourth plug-in structure is arranged on the outer wall of the adapter. The fourth plug-in structure and the fourth plug-in structure are matched in the circumferential direction to limit the adapter and the roller brush.

9. The roll brush assembly of claim 8, wherein, The fourth plug-in structure includes at least one convex rib arranged in the circumferential direction, and the fourth plug-in structure includes a plurality of plug-in pieces arranged in the circumferential direction, and a slot matched with the convex rib is formed between adjacent plug-in pieces. The plug-in piece includes a second extension section and a second guide section arranged in sequence in the direction pointing to the driving motor, and the width of the second guide section gradually increases in the direction away from the driving motor to form a guide end surface inclined relative to the axis of the roller brush at the end of the second guide section facing the driving motor.

10. The roll brush assembly of claim 8, wherein, Further comprising a heat dissipation element arranged inside the roller brush, and an outer wall of the heat dissipation element is arranged with a third plug-in structure; The inner wall of the roller brush is arranged with a third plug-in structure, and the third plug-in structure and the third plug-in structure are matched in the circumferential direction to limit the heat dissipation element and the roller brush.

11. The roll brush assembly of claim 10, wherein, The roller brush further comprises a first thrust plate arranged inside, which separates the inside of the roller brush into a first installation cavity and a second installation cavity, and a second opening is arranged on the first thrust plate, and the heat dissipation element and the driving motor are arranged in the first installation cavity and the second installation cavity respectively, and at least one damping element is arranged between the heat dissipation element and the first thrust plate, and a heat dissipation channel is formed inside the damping element.

12. The roll brush assembly of claim 8, wherein, The first end cover is arranged with a second limiting tube inserted into the inside of the roller brush on the side facing the roller brush, and the roller brush assembly further comprises a second bearing arranged between the fixed shaft and the inner wall of the roller brush, and the second bearing comprises a fixed ring connected with the fixed shaft and a movable ring connected with the inner wall of the roller brush, and the fixed ring on the side facing the first end cover abuts against the second limiting tube; The fixed shaft is arranged with a limiting protrusion on the side away from the first end cover of the second bearing, and the fixed ring on the side away from the first end cover abuts against the limiting protrusion; or, At least one damping element is sleeved on the fixed shaft and located on the side away from the first end cover of the second bearing, and the movable ring on the side away from the first end cover abuts against the damping element, and the inside of the roller brush is further arranged with a second thrust plate on the side away from the first end cover of the damping element, and the side away from the first end cover of the damping element abuts against the second thrust plate.

13. A cleaning head characterized by, The roller brush assembly comprises a shell and any one of claims 1 to 12.

14. A cleaning apparatus, characterized by The cleaning head comprises a machine body and the cleaning head of claim 13.

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