Roller assembly and cleaning equipment

Abstract

The utility model belongs to the technical field of smart home, and particularly relates to a roller assembly, cleaning equipment and a cleaning system. The roller assembly comprises a shell, a roller, a rotating shaft and an end cover, the shell is provided with a containing cavity, the containing cavity is provided with a supporting wall, the supporting wall is provided with an assembling part, the roller is connected to the rotating shaft, at least one end of the rotating shaft is connected with the end cover, and the end cover is positioned in the assembling part so that the roller can be assembled into the containing cavity. According to the roller assembly, the situation that threads are wound on the rotating shaft through the assembly channel can be avoided to a certain extent, the technical problem that more and more threads are stacked in the roller, and movement of the cleaning equipment is limited is solved, so that the roller assembly works normally, and the cleaning equipment runs normally.

Description

Technical Field

[0001] The present application belongs to the field of smart home technology, and specifically relates to a roller assembly and a cleaning device. Background Art

[0002] During the cleaning process, cleaning devices such as robot vacuums rely on a roller assembly mounted on their bottom to move across the surface being cleaned. During this process, if the roller assembly comes into contact with thread-like objects, such as hair, the thread-like objects may be drawn into the inner side of the roller as the roller rotates. Over time, this can restrict the movement of the cleaning device, causing the roller assembly to make unusual noises and become stuck, impacting the normal operation of the cleaning device. Summary of the Invention

[0003] The present application provides a roller assembly and a cleaning device, which aim to at least to some extent solve the technical problem that linear objects are wound into the roller, causing the movement of the roller to be restricted, thereby causing abnormal noise and jamming of the roller assembly, and affecting the normal operation of the cleaning device.

[0004] In a first aspect of the present application, a roller assembly is provided, comprising: a shell, provided with a accommodating cavity, the accommodating cavity being provided with a support wall, and an assembly portion being provided on the support wall; a roller, a rotating shaft and an end cover, the roller being connected to the rotating shaft, at least one end of the rotating shaft being connected to the end cover, and the end cover being positioned in the assembly portion to assemble the roller into the accommodating cavity.

[0005] The roller assembly provided by the present application has a roller connected to a rotating shaft, and at least one end of the rotating shaft is connected to an end cover, which is positioned in the assembly portion of the support wall to assemble the roller into the accommodating cavity, so that the end cover located at the end of the rotating shaft can fill the assembly portion and cover the end of the rotating shaft to shield the end of the rotating shaft, thereby preventing linear objects from being wrapped around the rotating shaft through the assembly portion to a certain extent, and avoiding the technical problem of more and more linear objects accumulating in the roller and restricting the movement of the cleaning equipment, so as to enable the roller assembly to work normally and the cleaning equipment to operate normally.

[0006] In some embodiments, the accommodating cavity is provided with an assembly opening; the assembly portion includes an assembly hole and an assembly channel provided on the inner wall of the accommodating cavity; the assembly channel extends from the assembly opening to the assembly hole, and the end cap is positioned within the assembly hole through the assembly channel to assemble the roller into the accommodating cavity. When the end cap is positioned within the assembly hole through the assembly channel, the end cap fills the assembly hole of the assembly portion to prevent the linear object from passing through the assembly hole and becoming entangled on the rotating shaft.

[0007] In some embodiments, at least a portion of the end cap is a non-circular structure, and at least a portion of the end cap is embedded in the assembly channel.

[0008] In some embodiments, the end cover is provided with a positioning portion and an extension portion, the positioning portion is cooperatively arranged in the assembly hole, and the two extension portions are connected to the peripheral side of the positioning portion and abut against two opposite side walls of the assembly channel.

[0009] In some embodiments, a receiving groove is provided at the end of the roller facing the end cover; the end cover is provided with a mounting portion, and a gap of the mounting portion is provided in the receiving groove.

[0010] In some embodiments, the roller assembly further includes: a first cleaning member connected to a peripheral side of the mounting portion to clean the receiving groove.

[0011] In some embodiments, the end cover is further provided with an isolation portion, and the isolation portion is connected to the mounting portion.

[0012] In some embodiments, the isolation portion gap is disposed within the receiving groove.

[0013] In some embodiments, the wheel assembly further includes: a labyrinth structure disposed between the isolation portion and the bottom of the accommodating groove.

[0014] In some embodiments, one or more ring portions are provided on opposite sides of the isolation portion and the bottom of the accommodating groove, and the ring portions on the isolation portion and the bottom of the accommodating groove are inserted into each other to form the maze structure.

[0015] In some embodiments, among two adjacent ring portions, at least a portion of at least one of the ring portions is in the shape of a cone; or / and, a protrusion is provided on the circumferential surface of at least one of the ring portions; or / and, at least a portion of the circumferential surface of at least one of the ring portions is in the shape of a curve.

[0016] In some embodiments, the edge of the isolation portion is provided with the ring portion, and the ring portion of the edge of the isolation portion extends obliquely toward the side wall of the accommodating groove.

[0017] In some embodiments, the roller assembly further includes a second cleaning member disposed on at least one of the ring portions.

[0018] In some embodiments, the second cleaning member is disposed on a ring portion on the isolation portion.

[0019] In some embodiments, two assembly holes are relatively provided, wherein: the assembly channels are connected to the assembly holes in a one-to-one correspondence; or, there is one assembly channel, which is connected to one of the assembly holes.

[0020] In some embodiments, at least a portion of the end cap is resilient.

[0021] In some embodiments, the rotating shaft and the end cover are fixedly connected, and the roller is rotatably connected to the rotating shaft; or, the rotating shaft and the end cover are rotatably connected, and the roller is fixedly connected to the rotating shaft.

[0022] In a second aspect of the present application, the present application further provides a cleaning device, which includes the above-mentioned roller assembly.

[0023] The cleaning equipment with the above-mentioned roller assembly can, to a certain extent, prevent linear objects from being entangled on the rotating shaft of the roller assembly, thereby avoiding the technical problem of more and more linear objects accumulating in the roller and restricting the movement of the cleaning equipment, so that the roller assembly and the cleaning equipment can operate normally.

[0024] In some embodiments, the cleaning device further comprises a housing, and a third cleaning member is provided on the housing to clean attachments on the surface of the roller.

[0025] In some embodiments, the housing is provided with a receiving portion, at least a partial gap of the housing of the roller assembly is provided in the receiving portion, and the third cleaning member is provided on an inner wall of the receiving portion.

[0026] In some embodiments, the third cleaning member is disposed in a gap with or in contact with the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic structural diagram of a roller assembly in one or more embodiments of the present application is shown;

[0029] Figure 2 Shown Figure 1 Explosion diagram of

[0030] Figure 3 Shown Figure 1 A schematic structural diagram of the shell in FIG.

[0031] Figure 4 Shown Figure 1 Schematic diagram of the structure of the end cover;

[0032] Figure 5 Shown Figure 1 Schematic diagram of the structure of the roller in FIG;

[0033] Figure 6 shows an assembly diagram of the first cleaning member;

[0034] Figure 7 Shown Figure 6 A schematic structural diagram of the first cleaning member in FIG.

[0035] Figure 8 Shown Figure 6 Schematic diagram of the assembly of the first cleaning member and the end cover;

[0036] Figure 9 Shown Figure 6 Schematic cross-sectional view of ;

[0037] Figure 10 A schematic diagram showing a state in which the ring portion has a maze structure with a convex portion;

[0038] Figure 11 A schematic diagram showing a state of a maze structure in which the ring portion has a curve;

[0039] Figure 12 Shown Figure 4 A structural diagram from another perspective;

[0040] Figure 13 Shows an exploded schematic view of part of a cleaning device with self-cleaning functionality.

[0041] Description of reference numerals:

[0042] Housing 1, accommodating cavity 11, assembly opening 111, support wall 112, assembly portion 113, assembly hole 1131, assembly channel 1132;

[0043] Axis-2;

[0044] Roller-3, receiving groove-31, frame-32, carcass-33

[0045] End cap 4, positioning portion 41, extension portion 42, mounting portion 43, isolation portion 44;

[0046] First cleaning member 5, frame 51, brush 52;

[0047] Labyrinth structure 6, ring portion 61, first ring portion 611, second ring portion 612, protrusion 62, curve 63;

[0048] Housing 7, receiving portion 71, mounting recess 72;

[0049] Third cleaning piece-8. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0051] In the related art, the roller assembly of a cleaning device such as a sweeping robot includes a shell, a roller, and a rotating shaft. The shell is provided with a accommodating cavity, the accommodating cavity is provided with an assembly opening, an assembly portion is provided in the accommodating cavity, and the assembly portion includes an assembly channel communicating with the assembly opening. The roller is connected to the rotating shaft, and the rotating shaft is pushed into and positioned in the assembly portion through the assembly channel to assemble the roller in the accommodating cavity of the shell. Since the assembly channel of the accommodating cavity is communicated with the assembly opening of the accommodating cavity, the gap between the roller and the assembly portion of the accommodating cavity is too large. During the movement of the cleaning device, when the roller of the roller assembly contacts a linear object, the linear object will be wound through the above-mentioned gap as the roller rotates and between the rotating pair formed by the roller and the rotating shaft. As time goes by, the linear object in the roller accumulates, and the movement of the cleaning device is restricted, thereby causing the roller assembly to make abnormal noises and become stuck, affecting the normal operation of the cleaning device.

[0052] Based on the above technical problems, the present application provides a roller assembly and a cleaning device, which aim to avoid the phenomenon of linear objects being wound into the roller to at least a certain extent, so that the roller assembly and the cleaning device can operate normally.

[0053] In a first aspect of the present application, a roller assembly is provided. Figure 1 shows a schematic structural diagram of a roller assembly in one or more embodiments of the present application, Figure 2 Shown Figure 1 Explosion diagram, Figure 3 Shown Figure 1 Schematic diagram of the shell structure. Figure 1-Figure 3 The roller assembly includes a shell 1, a roller 3, a rotating shaft 2 and an end cover 4, wherein the shell 1 is provided with a accommodating cavity 11, the accommodating cavity 11 is provided with an assembly portion 113, the roller 3 is connected to the rotating shaft 2, and at least one end of the rotating shaft 2 is connected to the end cover 4, and the end cover 4 is positioned in the assembly hole 1131 through the assembly channel 1132 to assemble the roller 3 into the accommodating cavity 11.

[0054] The roller assembly provided in the present application has a roller 3 connected to the rotating shaft 2, and at least one end of the rotating shaft 2 is connected to an end cover 4, which is positioned in the assembly portion 113 to assemble the roller to the accommodating cavity 11 of the shell 1, so that the end cover 4 located at the end of the rotating shaft 2 can fill the assembly portion 113 and cover the end of the rotating shaft 2 to block the end of the rotating shaft 2, thereby preventing linear objects from being wrapped around the rotating shaft 2 through the assembly portion 113 to a certain extent, and avoiding the technical problem of more and more linear objects accumulating in the roller 3 and restricting the movement of the cleaning equipment, so that the roller assembly and the cleaning equipment can operate normally.

[0055] According to one embodiment of the present application, the housing cavity 11 of the housing 1 is provided with an assembly opening 111 and two opposing support walls 112. The two support walls 112 are respectively provided on either side of the assembly opening 11. Each support wall 112 is provided with the aforementioned assembly portion 113. The rotating shaft equipped with the roller is pushed from the assembly opening 111 into the assembly portion 113 of the support wall 112 to assemble the roller to the two support walls 11 of the housing cavity. According to another embodiment of the present application, the support wall 112 of the housing cavity 11 of the housing 1 can also be an annular structure, and the two assembly portions 113 on the support wall 112 can be arranged opposite each other.

[0056] In some embodiments, the assembly portion 113 includes an assembly hole 1131 and an assembly channel 1132 provided on the support wall 112 of the accommodating cavity 11, the assembly channel 1132 extends from the assembly port 111 to the assembly hole 1131, the roller 3 is connected to the rotating shaft 2, and at least one end of the rotating shaft 2 is connected to the end cover 4, and the end cover 4 is positioned in the assembly hole 1131 through the assembly channel 1132 to assemble the roller 3 into the accommodating cavity 11.

[0057] According to one embodiment of the present application, both support walls 112 may be provided with an assembly channel 1132, and end caps 4 are connected to both ends of the rotating shaft 2. The end caps 4 fill the assembly holes 1131 on the same side and cover the same end of the rotating shaft 2 to shield the same end of the rotating shaft 2. This, to a certain extent, prevents linear objects from passing through the assembly channel 1132 and becoming entangled on the rotating shaft 2, thereby preventing more and more linear objects from accumulating inside the roller 3 and restricting the movement of the cleaning device, thereby ensuring the normal operation of the roller assembly and the cleaning device.

[0058] According to another embodiment of the present application, an assembly channel 1132 may be provided on only one supporting wall 112 , and at least a portion of the end cover 4 positioned in the assembly hole 1131 through the assembly channel 1132 is elastic. For example, the end cover 4 may be made of elastic materials such as rubber. During specific implementation, the end cover 4 connected to one end of the rotating shaft 2 is assembled into the assembly channel 1132, and the end cover 4 is compressed so that the other end of the rotating shaft 2 rests on the support wall 112 on the same side, pushing the roller 3 into the accommodating cavity 11, and the end cover 4 moves in the assembly channel 1132 until it is assembled into the assembly hole 1131 of the support wall 112 on the same side. At the same time, the other end of the rotating shaft 2 moves along the support wall 112 on the same side until it moves to the assembly hole 1131 of the support wall 112 on the same side. The end cover 4 is reset, forcing the other end of the driving rotating shaft 2 to be assembled into the assembly hole 1131 of the support wall 112 on the same side, and the rotating shaft 2 equipped with the roller 3 can be assembled into place. Since this embodiment only has one assembly channel 1132, the gap between the roller 3 and the support wall 112 can be further reduced to prevent linear objects from being wrapped around the rotating shaft 2 through the assembly channel 1132, so that the roller assembly can work normally and the cleaning equipment can operate normally.

[0059] Now, take the example that both supporting walls 112 of the accommodating cavity 11 are provided with the assembly channel 1132, and combine the attached Figure 1 -Attached Figure 4 The connection structure among the rotating shaft 2, the end cover 4 and the accommodating cavity 11 is further refined.

[0060] Combine Figure 1-Figure 3 The shell 1 can be roughly a columnar structure, and its accommodating cavity 11 matches the shape of the roller 3. The length of the assembly opening 111 of the accommodating cavity 11 and the distance between the two supporting walls 112 of the accommodating cavity 11 are slightly larger than the axial length of the roller 3, so that the roller 3 is gap-set in the accommodating cavity 11 so that the roller 3 can rotate relatively in the accommodating cavity 11; in addition, the outer surface of the roller 3 protrudes from the assembly opening 111 to contact the surface to be cleaned, so that the roller assembly can move on the surface to be cleaned.

[0061] Combine Figure 3The support wall 112 of the accommodating cavity 11 can be planar, the assembly hole 1131 can be circular, and the assembly channel 1132 extends from the assembly opening 111 to the assembly hole 1131 on the circumferential side of the assembly hole 1131 to shorten the path of the assembly hole 1131. The width dimension of the assembly channel 1132 can be slightly smaller than the hole diameter of the assembly hole 1131, and the end cover 4 is arranged in the assembly channel 1132 in an interference fit. During the process of pushing the end cover 4 from the assembly channel 1132 into the assembly hole 1131, the end cover 4 is compressed in the assembly channel 1132. After at least part of the end cover 4 is pushed into the assembly hole 1131, at least part of the end cover 4 restores the deformation, and the end cover 4 can be limited in the assembly hole 1131 due to the width dimension of the assembly channel 1132 being smaller than the hole diameter of the assembly hole 1131.

[0062] Figure 4 The structural diagram of the end cover in Figure 1 is shown. In combination with Figure 3 and Figure 4 , at least part of the end cover 4 can be a non-circular structure, and the at least part of the end cover 4 is embedded in the assembly channel 1132, so that the end cover 4 can be fixedly assembled in the assembly hole 1131 of the support wall 112.

[0063] In combination with Figure 3 and Figure 4 , according to an embodiment of the present application, the end cover 4 is provided with a positioning portion 41 and an extension portion 42. The positioning portion 41 is cooperatively arranged in the assembly hole 1131, and the two extension portions 42 are connected to the circumferential side of the positioning portion 41 and abut against the two opposite side walls of the assembly channel 1132. The positioning portion 41 can be a circular ring structure cooperatively matched with the assembly hole 1131, and the extension portion 42 can be a plate-shaped structure, one end of which is integrally connected to the circumferential side of the positioning portion 41, and the other end extends away from the positioning portion 41. The distance between the one ends of the two extension portions 42 is smaller than the distance between the other ends of the two extension portions 42, so that the two extension portions 42 are approximately in a V-shaped structure, and the other ends of the two extension portions 42 are in a propped-up posture to support and abut against the two side walls of the positioning channel, so that the end cover 4 is relatively fixed in the assembly hole 1131 of the support wall 112. According to an embodiment of the present application, the positioning portion 41 can also be a block-shaped structure, which can be arranged in the assembly channel 1132 in a clearance fit or an interference fit, and the technical effect of relatively fixing the end cover 4 in the assembly hole 1131 of the support wall 112 can also be achieved.

[0064] In the above technical solution, although the gap between the roller 3 and the supporting wall 112 can be reduced to a certain extent by setting the end cover 4, since the roller 3 is rotatably set relative to the accommodating cavity 11, there must be a gap between the roller 3 and the end cover 4. During the movement of the roller assembly, the linear objects rolled up by the roller 3 may still pass through the gap and enter the rotating pair formed by the roller 3 and the rotating shaft 2. As time goes by, the linear objects in the roller 3 will increase, which will also restrict the movement of the roller assembly and the cleaning equipment. Based on this, combined with the attached Figure 5 -Attached Figure 8 Further improvements to the roller assembly.

[0065] Figure 5 Shown Figure 1 Schematic diagram of the structure of the roller in. Figure 4 as well as Figure 5 The roller 3 is provided with a receiving groove 31 at the end portion facing the end cover 4 , and the end cover 4 is provided with a mounting portion 43 , and the mounting portion 43 is gap-set in the receiving groove 31 . Figure 6 Shows a schematic diagram of the assembly of the first cleaning member, combined with Figure 6 A first cleaning member 5 is further connected to the periphery of the mounting portion 43 to clean the receiving groove 31. Since the mounting portion 43 is relatively fixedly disposed in the receiving cavity 11 of the housing 1, the mounting portion 43 and the first cleaning member 5 connected to the periphery of the mounting portion 43 are also fixedly disposed relative to the receiving cavity 11. During the movement of the roller assembly, the roller 3 rotates continuously, and the linear object wound on the roller 3 enters the roller 3 through the gap between the roller 3 and the mounting portion 43 of the end cover 4, and the roller 3 entering the accommodating groove 31 can be cleaned by the first cleaning member 5. Since the first cleaning member 5 is fixed relative to the accommodating cavity 11, the first cleaning member 5 rotates relative to the roller 3, and the linear object cleaned by the first cleaning member 5 will not rotate with the roller 3, thereby causing the linear object to fall off the roller 3, so as to improve to a certain extent the phenomenon that the linear object is wound between the rotating pair of the roller 3 and the rotating shaft 2 as the roller 3 rotates, so as to avoid abnormal noise and jamming of the roller assembly, so as to ensure the normal operation of the roller assembly and the corresponding cleaning equipment, which has good practicality.

[0066] Combine Figure 4-Figure 6 In a specific implementation, the mounting portion 43 can be an annular structure that can be coaxially and integrally formed with the positioning portion 41 of the end cap 4. The mounting portion 43 can be attached or intermittently attached to the inner side of the support wall 112 of the accommodating cavity 11, and its radius can be larger than the radius of the positioning portion 41 of the end cap 4.

[0067] Combine Figure 5The roller 3 may include a skeleton 32 and a carcass 33. The skeleton 32 is connected to the rotating shaft 2. The accommodating groove 31 is set at the end of the skeleton 32. The carcass 33 is connected and wrapped around the skeleton 32. The carcass 33 extends out of the assembly port 111 of the accommodating cavity 11 to contact the ground to be cleaned, so as to drive the roller assembly to move on the cleaning ground.

[0068] Figure 7 Shown Figure 6 Schematic diagram of the structure of the first cleaning member. Figure 6 as well as Figure 7 The first cleaning member 5 may include a frame 51 and a brush 52. The frame 51 may be assembled on the mounting portion 43 by interference fit, key connection, snap connection or bonding. The brush 52 is connected to the peripheral side of the frame 51. The first cleaning member 5 formed by the brush 52 and the frame 51 may be a prefabricated member, which may be directly assembled on the mounting portion 43 of the end cover 4 during on-site assembly, which is convenient and quick.

[0069] Figure 8 Shown Figure 6 Schematic diagram of the assembly of the first cleaning member and the end cover. Figure 8 The end cap 4 is further provided with a separating portion 44, which is connected to the mounting portion 43 and disposed between the first cleaning member 5 and the bottom of the receiving groove 31. Specifically, the separating portion 44 is disposed on the inner side of the first cleaning member 5 to separate the first cleaning member 5 from the bottom of the receiving groove 31. During the movement of the roller assembly, the first cleaning member 5 cleans linear objects that have entered the receiving groove 31 of the roller 3. Due to the presence of the separating portion 44, the linear objects removed by the first cleaning member 5 are prevented from moving toward the bottom of the receiving groove 31 of the roller 3, but rather move toward the support wall 112 of the housing 1. Since the housing 1 and the end cap 4 are relatively fixed, the linear objects are unlikely to become entangled in the housing 1 and the end cap 4 and will automatically fall off as the roller assembly moves. Even if the linear objects become entangled in the housing 1 and the end cap 4, since the linear objects do not enter the rotating pair formed by the rotating shaft 2 and the roller 3, the normal operation of the roller assembly will not be affected. In specific implementation, the isolation portion 44 can be an annular plate structure, which is integrally connected to the side of the mounting portion 43 facing the bottom of the receiving groove 31 of the roller 3, and its radius size is preferably larger than the radius size of the first cleaning member 5, so that the axial projection of the first cleaning member 5 falls on the isolation portion 44, so as to effectively prevent the linear objects cleaned by the first cleaning member 5 from moving toward the bottom of the receiving groove 31 of the roller 3.

[0070] In order to ensure smooth rotation of the roller 3 of the roller assembly, the isolation portion 44 can be provided with a gap in the receiving groove 31. The gap can be about 5 mm, so that when the roller assembly moves, there is a gap between the isolation portion 44 and the side wall of the receiving groove 31, and to a certain extent, linear objects are prevented from passing through the gap and entering the bottom of the receiving groove 31.

[0071] Since the isolation portion 44 is provided with a gap in the receiving groove 31, the thread-like object may still enter the bottom of the receiving groove 31 through the gap, and then enter the rotating pair formed by the rotating shaft 2 and the roller 3. Based on this, the present application provides a labyrinth structure 6 between the isolation portion 44 and the bottom of the receiving groove 31 to extend the path for the thread-like object to enter the rotating pair formed by the rotating shaft 2 and the roller 3, so as to further prevent the thread-like object from entering the rotating pair formed by the roller 3 and the rotating shaft 2, so as to avoid restricting the movement of the roller 3, thereby causing abnormal noise and jamming of the roller assembly. Figure 9 -Attached Figure 12 The maze structure of the roller assembly is further described.

[0072] Figure 9 Shown Figure 6 Schematic cross-section of the . Figure 9 One or more ring portions 61 are provided on the opposite sides of the isolation portion 44 and the bottom of the accommodating groove 31. The ring portions 61 on the isolation portion 44 and the bottom of the accommodating groove 31 are inserted into each other to form the above-mentioned maze structure 6.

[0073] Combine Figure 9 In a specific implementation, the ring portion 61 includes a first ring portion 611 and a second ring portion 612. One or more first ring portions 611 may be provided on the side of the isolation portion 44 facing the bottom of the receiving groove 31. The first ring portion 611 may be integrally formed on the isolation portion 44. The outermost first ring portion 611 may be provided at the edge of the outer peripheral surface of the isolation portion 44. The bottom of the receiving groove 31 of the roller 3 may also be provided with one or more second ring portions 612. The second ring portion 612 of the labyrinth structure 6 may be integrally formed on the skeleton 32 ( Figure 5 As shown in the figure, one or more first ring portions 611 and one or more second ring portions 612 are interlaced with each other to form a serpentine maze structure 6, so as to extend the path for the linear object to enter between the rotating pair formed by the rotating shaft 2 and the roller 3, so as to further prevent the linear object from entering between the rotating pair formed by the roller 3 and the rotating shaft 2.

[0074] According to one embodiment of the present application, the first ring portion 611 and the second ring portion 612 are both sleeved around the periphery of the rotating shaft 2 and can be an annular structure coaxially arranged with the rotating shaft 2. According to another embodiment of the present application, the central axes of the first ring portion 611 and the second ring portion 612 can also be eccentric to the rotating shaft 2.

[0075] Combine Figure 9According to one embodiment of the present application, at least one of two adjacent ring portions 61 is truncated cone-shaped. This further reduces the minimum distance between the two adjacent ring portions 61 and prevents linear objects from passing through the gap between the ring portions 61 and entering the revolving pair formed by the roller 3 and the rotating shaft 2. In a specific implementation, the first ring portion 611 disposed on the isolation portion 44 can be an annular structure, and at least one of the second ring portions 612 disposed on the bottom of the receiving groove 31 can be truncated cone-shaped. Alternatively, at least one of the first ring portions 611 provided on the isolation portion 44 may be in the shape of a cone, and the second ring portion 612 provided on the bottom of the accommodating groove 31 may be in the shape of a ring; or, the first ring portion 611 provided on the isolation portion 44 and the second ring portion 612 provided on the bottom of the accommodating groove 31 may both be in the shape of a cone. Under this condition, the two adjacent ring portions 61 may be a group, and in a group of two ring portions 61, the top end of one ring portion 61 extends toward the bottom end of the other ring portion 61 to further reduce the minimum distance between the two adjacent ring portions 61, so as to further prevent linear objects from passing through the gap between the ring portions 61 and entering the rotating pair formed by the roller 3 and the rotating shaft 2.

[0076] According to another embodiment of the present application, at least one of the two adjacent ring portions 61 may be provided with a protrusion 62 on its circumferential surface. Under the condition that both adjacent ring portions 61 are provided with a protrusion 62 on their circumferential surfaces, the two protrusions 62 may be close to each other (e.g. Figure 10 As shown), or, in two adjacent ring portions 61, at least a portion of the circumference of at least one ring portion 61 is a curve 63. Under the condition that at least a portion of the circumference of the two adjacent ring portions 61 are both curved 63, the two curves 63 can be close to each other (as shown). Figure 11 As shown), the minimum distance between two adjacent ring portions 61 can also be further reduced to further prevent linear objects from passing through the gap between the ring portions 61 and entering the rotating pair formed by the roller 3 and the rotating shaft 2, which is not limited here.

[0077] In order to further prevent linear objects from passing through the above-mentioned labyrinth mechanism and entering the rotating pair formed by the roller 3 and the rotating shaft 2, a second cleaning member (not shown in the figure) can be provided on at least one ring portion 61 to clean the linear objects entering the labyrinth structure 6 to prevent the linear objects from passing through the above-mentioned labyrinth mechanism and entering the rotating pair formed by the roller 3 and the rotating shaft 2.

[0078] According to one embodiment of the present application, since the end cap 4 is fixedly arranged relative to the housing 1, the second cleaning member is preferably arranged on the ring portion 61 on the isolation portion 44, so that the second cleaning member rotates relative to the roller 3. The linear material cleaned by the second cleaning member does not rotate with the roller 3, thereby avoiding the phenomenon that the linear material is wound into the rotating pair between the roller 3 and the rotating shaft 2 as the roller 3 rotates. According to another embodiment of the present application, the second cleaning member can also be arranged on the ring portion 61 on the bottom of the accommodating groove 31. The structural assembly of the second cleaning member can refer to the structural assembly of the first cleaning member 5 and will not be repeated here.

[0079] Figure 12 Shown Figure 4 Another structural diagram of the perspective. Figure 9 as well as Figure 12 The edge of the isolating portion 44 may be provided with a ring portion 61 that extends obliquely toward the sidewall of the receiving groove 31 to further reduce the gap between the isolating portion 44 and the sidewall of the receiving groove 31, thereby further preventing linear objects from passing through the gap between the ring portion 61 and entering the rotating pair formed by the roller 3 and the rotating shaft 2. Furthermore, the ring portion 61 may also be provided with the aforementioned protrusion 62 or curve 63 to further reduce the gap between the isolating portion 44 and the sidewall of the receiving groove 31, thereby further preventing linear objects from passing through the gap between the ring portion 61 and entering the rotating pair formed by the roller 3 and the rotating shaft 2.

[0080] The roller assembly provided by the present application, wherein the end cover 4 blocks the end of the rotating shaft 2, can to a certain extent prevent the linear object from being entangled on the rotating shaft 2 through the assembly channel 1132, and if a linear object enters the receiving groove 31 of the roller 3, the linear object entering the roller 3 can be cleaned by the first cleaning member 5. Due to the existence of the isolation portion 44, to a certain extent, the linear object cleaned by the first cleaning member 5 will not move toward the bottom of the receiving groove 31, but will only move toward the supporting wall 112 of the shell 1. Since the shell 1 and the end cover 4 are not rotating, the linear object is not easy to be entangled on the shell 1 and the end cover 4, and will automatically fall off as the roller assembly moves; even if the linear object is entangled on the shell 1 and the end cover 4, since the linear object has not entered The rotating pair formed by the rotating shaft 2 and the roller 3 will not affect the normal operation of the roller assembly; if there is a linear object that cannot be cleaned by the first cleaning member 5, the linear object will enter the maze structure 6 formed between the isolation portion 44 and the bottom of the accommodating groove 31, so as to extend the path of the linear object entering the rotating pair formed by the rotating shaft 2 and the roller 3, and also prevent the linear object from entering the rotating pair formed by the roller 3 and the rotating shaft 2. In addition, the accommodating cavity of the rotatable roller 3 is cleaned by the second cleaning member in the maze structure 6, which can further prevent the linear object from entering the rotating pair formed by the roller 3 and the rotating shaft 2, so as to avoid restricting the movement of the roller 3, and then causing abnormal noise and jamming of the roller assembly, so as to improve the reliability of the operation of the roller assembly.

[0081] According to one embodiment of the present application, the rotating shaft 2 of the roller assembly is fixedly connected to the end cap 4, and the roller 3 rotates relative to the rotating shaft 2. This can prevent the problem of linear objects entering the rotating shaft 2 and the rotational connection of the end cap 4, which would restrict the rotating shaft 2. According to another embodiment of the present application, the rotating shaft 2 can also be rotatably connected to the end cap 4, and the roller 3 and the rotating shaft 2 are fixedly connected. The roller assembly shown in this application can also prevent linear objects from affecting the rotation of the roller 3 to a certain extent. This will not be elaborated here.

[0082] In a second aspect of the present application, the present application further provides a cleaning device, which includes the above-mentioned roller assembly.

[0083] The cleaning equipment with the above-mentioned roller assembly can, to a certain extent, prevent the linear objects from being entangled on the rotating shaft 2 of the roller assembly, so as to avoid the technical problem that more and more linear objects accumulate in the roller 3 and restrict the movement of the cleaning equipment, so that the roller assembly and the cleaning equipment can operate normally.

[0084] According to another embodiment of the present application, the cleaning device may be a sweeping robot. According to another embodiment of the present application, the cleaning device may also be other cleaning devices with a walking function, such as a mopping machine or a sweeping machine, etc., which is not limited here.

[0085] In the related art, when the cleaning equipment is in motion, the surface of the roller on the roller assembly will accumulate dust, stones and other hard particles, which may scratch the floor. Based on this, the cleaning equipment shown in this application also has a self-cleaning function to remove the dust, stones and other hard particles accumulated on the surface of the roller when the cleaning equipment is in motion, thereby improving the phenomenon of scratching the floor, which has good practicality. Figure 13 The specific details of the self-cleaning function of the cleaning device are further described.

[0086] Figure 13 An exploded schematic diagram of a portion of a cleaning device with a self-cleaning function is shown. Figure 13 The cleaning device also includes a shell 7, on which a third cleaning member 8 is provided. The third cleaning member 8 can clean the attachments on the surface of the roller 3, such as dust, stones and other hard particles accumulated on the carcass 33 of the roller 3, so as to prevent the attachments on the carcass 33 of the roller 3 from scratching the floor to a certain extent.

[0087] Combine Figure 13 The housing 7 is provided with a receiving portion 71, in which at least a portion of the roller assembly housing is disposed. The third cleaning member 8 is disposed on the inner wall of the receiving portion 71, with at least a portion of the third cleaning member 8 facing the assembly opening of the housing's receiving cavity to clean debris attached to the surface of the roller 3 within the receiving opening. In a specific embodiment, the battery cover portion of the housing 7 can be provided with a receiving hole, which is configured as the receiving portion 71. A mounting recess 72 is provided on the sidewall of the receiving hole. The third cleaning member 8 has a similar structure to the first cleaning member and can include a frame and a brush. The frame of the third cleaning member 8 can be assembled to the mounting recess 72 by interference fit, snap-fit, or adhesive bonding. The brush of the third cleaning member 8 is connected to the frame of the third cleaning member 8 and matches the outer structure of the roller 3 to provide a good cleaning effect. The third cleaning member 8 can be prefabricated and can be directly assembled on the sidewall of the receiving hole with the mounting recess 72 during on-site assembly, which is convenient and quick. The third cleaning member 8 may also be disposed on other parts of the housing 7 , and may be adjusted accordingly according to the location of the roller assembly, which is not limited here.

[0088] According to one embodiment of the present application, the third cleaning member 8 is provided with a gap between the roller 3 and the third cleaning member 8 to clean off debris having a certain thickness on the surface of the carcass 33 of the roller 3. According to another embodiment of the present application, the third cleaning member 8 may also be in contact with the surface of the carcass 33 of the roller 3. Since the brush of the third cleaning member 8 is a flexible portion, its contact with the surface of the roller 3 will not affect the normal operation of the roller assembly, and the debris on the surface of the carcass 33 of the roller 3 can be cleaned to the greatest extent possible, thereby preventing the debris on the roller 3 from scratching the floor.

[0089] The cleaning device provided by the present application can not only prevent flexible linear objects from being entangled on the rotating shaft 2 of the roller assembly, so that the roller assembly and the cleaning device can operate normally; it can also clean hard attachments on the carcass 33 of the roller 33 of the roller 3 on the roller assembly to improve the phenomenon of attachments scratching the floor, and has good practicality.

[0090] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0091] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0092] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0093] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0094] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A roller assembly, characterized in that: The roller assembly comprises: The housing is provided with a receiving cavity, the receiving cavity is provided with a supporting wall, and the supporting wall is provided with an assembly portion; A roller, a rotating shaft and an end cover, wherein the roller is connected to the rotating shaft, at least one end of the rotating shaft is connected to the end cover, and the end cover is positioned in the assembly portion to assemble the roller into the accommodating cavity; The accommodating cavity is provided with an assembly opening; The assembly portion includes an assembly hole and an assembly channel provided on the inner wall of the accommodating cavity. The assembly channel extends from the assembly opening to the assembly hole. The end cover is positioned in the assembly hole through the assembly channel. The end cover fills the assembly hole to assemble the roller into the accommodating cavity.

2. The roller assembly according to claim 1, wherein: At least a portion of the end cover is a non-circular structure, and at least a portion of the end cover is embedded in the assembly channel.

3. The roller assembly according to claim 2, wherein: The end cover is provided with a positioning portion and an extension portion. The positioning portion is cooperatively arranged in the assembly hole. The two extension portions are connected to the peripheral side of the positioning portion and abut against two opposite side walls of the assembly channel.

4. The roller assembly according to any one of claims 1 to 3, characterized in that: The end of the roller facing the end cover is provided with a receiving groove; The end cover is provided with a mounting portion, and a gap of the mounting portion is provided in the accommodating groove.

5. The roller assembly according to claim 4, characterized in that: The roller assembly further includes a first cleaning member connected to the peripheral side of the mounting portion to clean the receiving groove.

6. The roller assembly according to claim 4, characterized in that: The end cover is further provided with an isolation portion, and the isolation portion is connected to the mounting portion.

7. The roller assembly according to claim 6, characterized in that: The wheel assembly further comprises: The labyrinth structure is arranged between the isolation portion and the bottom of the accommodating groove.

8. The roller assembly according to claim 7, wherein: One or more ring portions are provided on opposite sides of the isolation portion and the bottom of the accommodating groove, and the ring portions on the isolation portion and the bottom of the accommodating groove are inserted into each other to form the maze structure.

9. The roller assembly according to claim 8, wherein: Among the two adjacent ring portions, at least a portion of at least one ring portion is in a frustum shape; or / and, a protrusion is provided on the circumference of at least one ring portion; or / and, at least a portion of the circumference of at least one ring portion is in a curved shape.

10. The roller assembly according to claim 8 or 9, characterized in that: The ring portion is provided on the edge of the isolation portion, and the ring portion of the edge of the isolation portion extends obliquely toward the side wall of the accommodating groove.

11. The roller assembly according to claim 8 or 9, characterized in that: The roller assembly further includes a second cleaning member disposed on at least one of the ring portions.

12. The roller assembly according to claim 11, wherein: The second cleaning member is arranged on the ring portion on the isolation portion.

13. The roller assembly according to claim 1, wherein: There are two relatively arranged assembly holes, wherein: the assembly channels are connected to the assembly holes in a one-to-one correspondence; or, there is one assembly channel, which is connected to one of the assembly holes.

14. The roller assembly according to any one of claims 1 to 3, characterized in that: At least a portion of the end cap is elastic.

15. The roller assembly according to any one of claims 1 to 3, characterized in that: The rotating shaft and the end cover are fixedly connected, and the roller is rotatably connected to the rotating shaft; or the rotating shaft and the end cover are rotatably connected, and the roller is fixedly connected to the rotating shaft.

16. A cleaning device, characterized in that: The cleaning device comprises the roller assembly according to any one of claims 1-15.

17. The cleaning device according to claim 16, characterized in that The cleaning device further comprises a shell, on which a third cleaning member is provided for cleaning attached objects on the surface of the roller.

18. The cleaning device according to claim 17, characterized in that The housing is provided with a receiving portion, at least a partial gap of the housing of the roller assembly is provided in the receiving portion, and the third cleaning member is provided on the inner wall of the receiving portion.

19. The cleaning device according to claim 17 or 18, characterized in that The third cleaning member is disposed in a gap or in contact with the roller.

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