Roller device and cleaning apparatus having the same

Abstract

This utility model provides a roller device and a cleaning device having the same. The roller device includes: a bracket; a wheel body rotatably mounted on the bracket about its axis; and a blocking member, at least a portion of which is disposed on the side of the wheel body along its axial direction. The minimum distance from the blocking end of the blocking member to a preset plane along the axial direction of the wheel body is less than or equal to the maximum distance from the end of the wheel body to the preset plane, thereby preventing hair from reaching the wheel's pivot point via the end of the wheel body. The preset plane is a plane passing through the geometric center of the wheel body and perpendicular to its central axis. This utility model's roller device solves the technical problem in related technologies where cleaning devices are easily immobilized by hair entanglement in the roller.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment accessories, and more specifically, to a roller device and a cleaning equipment having the same. Background Technology

[0002] Cleaning equipment such as robotic vacuum cleaners, vacuum cleaners, and floor scrubbers are widely used in people's daily lives, greatly simplifying indoor cleaning and improving efficiency. However, these cleaning devices still have significant shortcomings in practical applications. For example, in environments with a lot of hair, hair tends to adhere to the rollers of the cleaning device and then gradually move to the roller's axle, causing it to become entangled and difficult to rotate, thus hindering the device's movement.

[0003] It is evident that the cleaning equipment in this technology suffers from a technical problem: hair can easily become entangled in the rollers, preventing them from moving. Currently, no effective solution has been proposed to address this issue.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background art described herein. Therefore, the background art may contain information that would not be considered part of the prior art by those skilled in the art. Utility Model Content

[0005] The main objective of this invention is to provide a roller device and a cleaning device having the same, in order to solve the technical problem in the related art that the cleaning device is prone to being unable to move due to hair getting tangled in the roller.

[0006] To achieve the above objectives, according to one aspect of the present invention, a roller device is provided, comprising: a bracket; a wheel body rotatably mounted on the bracket about its axis; and a blocking member, at least a portion of which is disposed on the side of the wheel body along its axial direction; wherein, along the axial direction of the wheel body, the minimum distance from the blocking end of the blocking member to a preset plane is less than or equal to the maximum distance from the end of the wheel body to the preset plane, so as to prevent hair from reaching the axis of rotation of the wheel body through the end of the wheel body, wherein the preset plane is a plane passing through the geometric center of the wheel body and perpendicular to the central axis of the wheel body.

[0007] Furthermore, the blocking component comes into contact with the end face of the wheel body.

[0008] Furthermore, the end face of the wheel body is provided with a groove, and a portion of the blocking member is embedded in the groove; and / or, a portion of the blocking member contacts the outer peripheral surface of the wheel body.

[0009] Furthermore, the blocking member contacts the end face of the wheel body; and / or, if the end face of the wheel body is provided with a groove, the blocking member contacts the side wall of the groove, the side wall of the groove being the inner wall of the groove along the radial direction of the wheel body.

[0010] Furthermore, the blocking member extends along a first preset trajectory, wherein the first preset trajectory is a circular trajectory, or the first preset trajectory is a part of a circular trajectory.

[0011] Furthermore, the brush head of the blocking component contacts the edge of the wheel body end face, and the blocking component extends circumferentially along the edge of the wheel body end face.

[0012] Furthermore, the edge of the wheel body end face is provided with an annular protrusion, which extends along the circumference of the wheel body, and the position where the annular protrusion contacts the blocking member is recessed into the blocking member.

[0013] Furthermore, the central angle occupied by the projection of the blocking member onto the preset plane is not less than 30°, and the center of the central angle is the projection point of the central axis onto the preset plane.

[0014] Furthermore, the blocking member has a first surface, which is the outer surface of the blocking member along the radial direction of the wheel body. At least a portion of the first surface is inclined toward the central axis of the wheel body in a direction away from the wheel body; and / or, the blocking member has a second surface, which is the end face of the blocking member along the circumferential direction of the wheel body. At least a portion of the second surface is inclined in the radial direction of the wheel body, such that the central angle occupied by the outer edge of the blocking member is smaller than the central angle occupied by the inner edge of the blocking member. Along the radial direction of the wheel body, the outer edge is located outside the inner edge, and the center of the central angle is the projection point of the central axis in a preset plane, which is perpendicular to the axial direction of the wheel body.

[0015] Furthermore, at least a portion of the blocking element is made of a flexible material to elastically deform when the blocking element comes into contact with the wheel and is subjected to force.

[0016] Furthermore, the flexible material includes at least one of the following: a brush, an organic foam material, or a flexible adhesive.

[0017] Furthermore, the roller device includes: a protective member disposed on the bracket along the axial direction of the wheel body, the protective member being located at the end of the wheel body, the protective member extending circumferentially along the wheel body, a portion of the protective member being embedded in the end face of the wheel body, and a blocking member disposed on the outer edge of the protective member.

[0018] Furthermore, the protective component extends along a second preset trajectory, wherein the second preset trajectory is a circular trajectory, or a part of a circular trajectory; wherein, when both the arrangement trajectory of the blocking component and the arrangement trajectory of the protective component are non-closed trajectories, the blocking component and the protective component together surround the central axis of the wheel body.

[0019] Furthermore, the protective member has a third surface, which is the outer surface of the protective member along the radial direction of the wheel body. At least a portion of the third surface is inclined toward the central axis of the wheel body in a direction away from the wheel body.

[0020] Furthermore, when the wheel rotates relative to the bracket, there is a relative rotation between the wheel and the blocking component.

[0021] Furthermore, the blocking element is mounted on the bracket, or the blocking element is mounted on the protective element.

[0022] Furthermore, at least a portion of the wheel surface is an inclined surface, and the distance from the inclined surface to the central axis of the wheel gradually decreases along the direction close to the end face of the wheel.

[0023] Furthermore, there is a preset gap between the wheel and the bracket. The preset gap has a first opening and a second opening. When the roller device is working, the direction of movement of the wheel surface within the preset gap is from the first opening toward the second opening. The area of ​​the first opening is smaller than the area of ​​the second opening, and / or the width of the first opening is smaller than the width of the second opening, where the width is the distance between the wheel surface and the bracket.

[0024] Furthermore, the bracket includes a bracket body and an auxiliary mounting component, with the wheel mounted on the auxiliary mounting component, the blocking component mounted on the auxiliary mounting component, and the auxiliary mounting component detachably mounted on the bracket body.

[0025] Furthermore, the auxiliary mounting component is removably disposed on the bracket body; wherein, the bracket body and / or the auxiliary mounting component are provided with a positioning structure to prevent relative movement between the bracket body and the auxiliary mounting component after assembly; and / or, the bracket body and / or the auxiliary mounting component are provided with a guide structure to guide the relative movement of the bracket body and the auxiliary mounting component when they are assembled or disassembled.

[0026] According to another aspect of the present invention, a cleaning device is provided, the cleaning device including a roller device, wherein the roller device is the roller device described above.

[0027] The roller device using the technical solution of this utility model includes: a bracket; a wheel body, the wheel body being rotatably mounted on the bracket about its axis; and a blocking member, at least a portion of which is disposed on the side of the wheel body along its axial direction. The minimum distance from the blocking end of the blocking member to a preset plane along the axial direction of the wheel body is less than or equal to the maximum distance from the end of the wheel body to the preset plane, so as to prevent hair from reaching the axis of rotation of the wheel body through the end of the wheel body. The preset plane is a plane passing through the geometric center of the wheel body and perpendicular to the central axis of the wheel body. The roller device with the above-described structure has a blocking component at one end of the wheel body along the axial direction. The minimum distance from the blocking end of the blocking component to the preset plane is less than or equal to the maximum distance from the end of the wheel body to the preset plane. Therefore, along the axial direction of the wheel body, there is a contact or overlap area between the blocking component and the wheel body. This allows the blocking component to block between the wheel surface and the shaft. When the wheel body passes through a place with a lot of hair, the hair adhering to the wheel body can be blocked by the blocking component when it hangs or falls near the end face of the wheel body. As the wheel body rotates, the blocked hair falls off the wheel body through continuous interference with the blocking component, thus untangling the hair and preventing it from falling to the shaft of the wheel body and becoming entangled. This effectively reduces the occurrence of roller device failure due to hair entanglement at the shaft, improves the reliability of the roller device in environments with a lot of hair, and solves the technical problem in related technologies where cleaning equipment is prone to being unable to move due to hair entanglement on the roller. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the roller device of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the roller device of this utility model after the wheel body has been removed;

[0031] Figure 3 This is a schematic diagram showing the fit between the wheel body and the blocking component in an embodiment of the roller device of this utility model;

[0032] Figure 4 This is a schematic diagram showing the arrangement angle of the blocking member in an embodiment of the roller device of this utility model;

[0033] Figure 5 This is a partial cross-sectional view of an embodiment of the roller device of this utility model;

[0034] Figure 6This is a schematic diagram of an embodiment of the roller device of this utility model viewed from the bottom.

[0035] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure along line AA;

[0036] Figure 8 This is a schematic diagram of the exploded structure of the wheel body in an embodiment of the roller device of this utility model;

[0037] Figure 9 This is a cross-sectional structural schematic diagram of the various parts of the wheel body in an embodiment of the roller device of this utility model;

[0038] Figure 10 This is a cross-sectional structural schematic diagram of an embodiment of the roller device of this utility model;

[0039] Figure 11 This is a schematic diagram of another embodiment of the roller device of this utility model;

[0040] Figure 12 for Figure 11 The schematic diagram of an embodiment of the roller device is shown in the disassembled state of the support body and auxiliary mounting components.

[0041] The above figures include the following reference numerals:

[0042] 1. Bracket; 11. Bracket body; 111. Positioning slot; 112. Guide groove; 12. Auxiliary mounting component; 121. Positioning protrusion; 122. Guide block; 123. First positioning part; 124. Groove; 10. Protective component; 2. Wheel body; 20. Annular protrusion; 21. Frame; 211. Opening; 22. Wrapping layer; 221. Connecting part; 3. Blocking component; 31. First surface; 32. Second surface; 33. Blocking end; 4. Connecting component; 5. Rotating shaft; 100. First opening; 200. Second opening. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] Please refer to Figures 1 to 12An embodiment of this utility model provides a roller device, comprising: a bracket 1; a wheel 2 rotatably mounted on the bracket 1 about its axis; and a blocking member 3, at least a portion of which is disposed on the side of the wheel 2 along its axial direction. The blocking member 3, along the axial direction of the wheel 2, has a minimum distance from its blocking end 33 to a preset plane that is less than or equal to the maximum distance from the end of the wheel 2 to the preset plane, thereby preventing hair from reaching the pivot 5 of the wheel 2 through its end. The preset plane is a plane passing through the geometric center of the wheel 2 and perpendicular to its central axis. Figure 7 As shown, the minimum distance L1 from the blocking end 33 of the blocking member 3 to the preset plane is less than or equal to the maximum distance L2 from the end of the wheel body 2 to the preset plane.

[0045] The roller device with the above-described structure incorporates a blocking element 3 at one end of the wheel body 2 along the axial direction. The minimum distance from the blocking end 33 of the blocking element 3 to the preset plane is less than or equal to the maximum distance from the end of the wheel body 2 to the preset plane. Therefore, along the axial direction of the wheel body 2, there is a contact or overlapping area between the blocking element 3 and the wheel body 2. This allows the blocking element 3 to block between the wheel surface of the wheel body 2 and the rotating shaft 5. When the wheel body 2 passes through areas with abundant hair, the hair adhering to the wheel body 2 hangs or falls near the end face of the wheel body 2. When the hair is blocked by the blocking part 3, it will fall off the wheel 2 as the wheel 2 rotates and continuously interferes with the blocking part 3, thus untangling the hair and preventing it from falling onto the shaft of the wheel 2 and getting tangled. This effectively reduces the occurrence of the roller device failing due to hair tangling at the shaft 5, improves the reliability of the roller device in environments with a lot of hair, and solves the technical problem in related technologies that cleaning equipment is prone to being unable to move due to hair tangling on the roller.

[0046] In actual implementation, the relative positional relationship between the blocking component 3 and the wheel 2 can be varied, for example:

[0047] In one alternative embodiment, the blocking member 3 contacts the end face of the wheel body 2. In this embodiment, the contact between the blocking member 3 and the end face of the wheel body 2 results in a tighter fit, preventing hair from entering the shaft through the gap between them, thus achieving a better anti-tangling effect.

[0048] In another optional embodiment, the end face of the wheel body 2 is provided with a groove, and a portion of the blocking member 3 is embedded in the groove; and / or, a portion of the blocking member 3 contacts the outer peripheral surface of the wheel body 2. Preferably, the blocking member 3 contacts the end face of the wheel body 2; and / or, when the end face of the wheel body 2 is provided with a groove, the blocking member 3 contacts the side wall of the groove, the side wall of the groove being the inner wall of the groove along the radial direction of the wheel body 2. By embedding a portion of the blocking member 3 into the groove, the straight gap between the blocking member 3 and the wheel body 2 is transformed into a curved gap, which improves the blocking effect of the blocking member 3 on hair, thereby reducing the risk of hair getting tangled at the shaft. By making a portion of the blocking member 3 contact the outer peripheral surface of the wheel body 2, in addition to preventing hair from entering the shaft, it can also sweep away hair on the outer peripheral surface of the wheel body 2, thereby preventing hair from accumulating on the outer peripheral surface of the wheel body 2 and reducing the risk of excessive hair causing the shaft or the outer peripheral surface of the wheel body 2 to become stuck.

[0049] In a preferred embodiment, the blocking member 3 is arranged to extend along a first preset trajectory, wherein the first preset trajectory is a circular trajectory, or the first preset trajectory is a part of a circular trajectory.

[0050] In other words, from the projection of the blocking element 3 onto the end face of the wheel 2, the projection of the blocking element 3 is a ring structure, which is a closed trajectory, or the projection of the blocking element 3 is part of a ring structure, which is an open trajectory. Specifically, the aforementioned ring is not limited to a circular ring; it can be any regular or irregular closed ring structure, such as a ring trajectory formed by multiple straight edges, a ring trajectory formed by a combination of multiple straight edges and multiple curved edges, etc. When the arrangement trajectory of the blocking element 3 is a closed ring trajectory, its protection effect against hair is better, and it can prevent hair from getting tangled at the axle of the wheel 2 to the greatest extent. When the arrangement trajectory of the blocking element 3 is a non-closed structure, that is, the first preset trajectory is part of a ring trajectory, although it is not as comprehensive as when a closed trajectory is used, it can reduce the resistance to the wheel 2. In actual implementation, the first preset trajectory can be flexibly selected as closed according to actual needs.

[0051] In this embodiment, the brush head of the blocking member 3 contacts the edge of the end face of the wheel body 2, and the blocking member 3 extends circumferentially along the edge of the end face of the wheel body 2. That is to say, in this embodiment, the blocking member 3 is arranged circumferentially along the wheel body 2, so that it can better cooperate with the edge of the wheel body 2 and directly sweep away the hair on the edge of the wheel body 2 when the wheel body 2 rotates, preventing it from entering the shaft of the wheel body 2 through the end face of the wheel body 2, thereby more effectively preventing hair from getting tangled.

[0052] Preferably, the edge of the end face of the wheel body 2 is provided with an annular protrusion 20, the annular protrusion 20 extends along the circumference of the wheel body 2, and the position where the annular protrusion 20 contacts the blocking member 3 is embedded in the blocking member 3.

[0053] By setting an annular protrusion 20 on the edge of the end face of the wheel body 2 and embedding the annular protrusion 20 into the blocking member 3, the fit between the blocking member 3 and the wheel body 2 can be improved, avoiding the problem of hair entanglement caused by gaps between the two due to fit accuracy or wear, and effectively improving the reliability of preventing hair entanglement.

[0054] Preferably, the annular protrusion 20 is provided to protrude along the axial direction of the wheel body 2, and the bristles of the blocking member 3 are arranged to extend along the axial direction of the wheel body 2, so as to better block and sweep away the hair on the edge of the wheel body 2 and improve the anti-winding effect of the roller device.

[0055] like Figure 4 As shown, in order to ensure that the blocking member 3 can effectively brush away the hair on the wheel body 2 and prevent the wheel body 2 from being entangled by hair, in this embodiment, the central angle occupied by the projection of the blocking member 3 on the preset plane is not less than 30°, that is, corresponding to Figure 4 The sum of ∠α and ∠β is not less than 30°, thus ensuring that the blocking component 3 plays a sufficient blocking and interference role, and ensuring that it can achieve a good blocking and untangling effect on the hair. The center of the central angle is the projection point of the central axis on the preset plane.

[0056] In a specific embodiment, since the wheel 2 is rotating during operation, the probability of hair falling in different directions is different. In order to better adapt to the hair falling situation and thus improve the blocking effect of the blocking member 3 on the hair, the blocking member 3 has a first end and a second end along the circumference of the wheel 2. Along the forward direction of the roller device, the first end is located in front of the second end. The roller device satisfies 90°≤∠α<180°, 0°<∠β, where ∠α is the angle between the first ray and the second ray, and ∠β is the angle between the first ray and the third ray. The endpoints of the first ray, the second ray, and the third ray are all the projection centers of the wheel 2 in a preset plane. The first ray extends vertically upward, the second ray passes through the projection of the first end in the preset plane, and the third ray passes through the projection of the second end in the preset plane. The preset plane is a plane perpendicular to the axis of the wheel 2.

[0057] It should be noted that the above-mentioned direction is described based on the state when the roller device is placed on a horizontal working surface. When the roller device is working on an inclined surface, the above-mentioned first ray extends upward in a vertical direction, which should be understood as the first ray extending in a direction perpendicular to the working surface and towards the ground rather than downward.

[0058] The first end and the second end mentioned above should be understood as the farthest end along the circumference of the wheel body 2. When the end of the blocking member 3 along the circumference of the wheel body 2 does not have a farthest end, for example, its end is a face or an edge, and the face or the edge is arranged radially along the wheel body 2, any point on the face or the edge can be regarded as the first end or the second end mentioned above.

[0059] like Figure 3 As shown, in this embodiment, the blocking member 3 has a first surface 31, which is the outer surface of the blocking member 3 along the radial direction of the wheel body 2. At least a portion of the first surface 31 is inclined toward the central axis of the wheel body 2 in a direction away from the wheel body 2; and / or, the blocking member 3 has a second surface 32, which is the end face of the blocking member 3 along the circumference of the wheel body 2. At least a portion of the second surface 32 is inclined toward the radial direction of the wheel body 2, so that the central angle occupied by the outer edge of the blocking member 3 is smaller than the central angle occupied by the inner edge of the blocking member 3. Along the radial direction of the wheel body 2, the outer edge is located outside the inner edge, and the center of the central angle is the projection point of the central axis in a preset plane. The preset plane is perpendicular to the axial direction of the wheel body 2.

[0060] By designing an inclined first surface 31, hair falling onto the upper surface of the blocking member 3 on the wheel body 2 can fall more smoothly along the first surface 31 to the ground, reducing hair accumulation on the blocking member 3 and preventing hair accumulated on the blocking member 3 from falling onto the wheel body 2 or falling to the axle of the wheel body 2, thus achieving a better anti-hair entanglement effect.

[0061] By designing an inclined second surface 32, when the wheel 2 rotates to the blocking member 3, the hair on the edge of the wheel 2 will be guided to the upper surface of the blocking member 3 by the guiding action of the second surface 32, preventing the hair from being swept to the side of the blocking member 3 near the shaft, thus providing a better anti-hair entanglement effect on the shaft of the wheel 2.

[0062] In actual implementation, the specific structural form / material of the blocking member 3 can be selected in various ways. As a preferred embodiment, at least a portion of the blocking member 3 is made of a flexible material so that it can undergo elastic deformation when the blocking member 3 comes into contact with the wheel 2 under force. This elastic deformation of the blocking member 3 allows for more complete and reliable contact with the wheel 2, ensuring the blocking effect against hair and reducing the obstruction to the normal rotation of the wheel 2.

[0063] Specifically, flexible materials may include at least one of the following: brushes, organic foam materials, and flexible adhesives.

[0064] In one specific embodiment, the flexible material of the blocking member 3 is a brush. The brush head, which is the part of the blocking member 3 that performs the blocking and cleaning functions, has several fiber-structured ends, which achieve the blocking and cleaning functions. In actual implementation, the material of the blocking member 3 can be varied, as long as the blocking member 3 has a brush structure that can smoothly block hair from entering the rotating shaft of the wheel body 2 and can sweep away hair at the corresponding position of the wheel body 2. For example, it can be a brush made of the hair of various animals, or it can be a brush made of synthetic materials.

[0065] As an optional embodiment, the roller device includes: a protective member 10, which is disposed on the bracket 1 along the axial direction of the wheel body 2, located at the end of the wheel body 2, extending circumferentially along the wheel body 2, with a portion of the protective member 10 embedded in the end face of the wheel body 2, and a blocking member 3 disposed on the outer edge of the protective member 10. In a specific embodiment, the distance from the protective member 10 to the central axis of the wheel body 2 is less than the distance from the blocking member 3 to the central axis of the wheel body 2.

[0066] Based on the design of the blocking component 3, a protective component 10 is also designed at the end of the wheel body 2. A portion of the protective component 10 is embedded in the end face of the wheel body 2, and it is located on the outer edge of the protective component 10. In this way, hair that falls onto the wheel body 2 or is brushed off by the blocking component 3 can also be blocked by the protective component 10, thereby further reducing the risk of hair falling onto the pivot 5 of the wheel body 2 and achieving a better anti-tangling effect. Different specific choices can be made regarding the cooperation relationship between the protective component 10 and the blocking component 3. For example, the protective component 10 can be located on the bracket 1, and the blocking component 3 can be located on the protective component 10. Another example is that both the protective component 10 and the blocking component 3 can be located on the bracket 1. The protective component 10 and the blocking component 3 can be in contact with each other or spaced apart.

[0067] Specifically, the protective member 10 extends along a second preset trajectory, wherein the second preset trajectory is a circular trajectory, or a part of a circular trajectory; wherein, when both the arrangement trajectory of the blocking member 3 and the arrangement trajectory of the protective member 10 are non-closed trajectories, the blocking member 3 and the protective member 10 together surround the central axis of the wheel body 2.

[0068] In practical implementation, both the blocking component 3 and the protective component 10 can be designed as a ring structure or part of a ring structure. That is, both the blocking component 3 and the protective component 10 can be designed to fully or partially surround the rotating shaft. A fully surrounded design provides more comprehensive protection, preventing hair from tangling around the rotating shaft of the wheel 2. In practical implementation, the amount of hair falling in different directions varies considerably when the wheel 2 rotates. For a partially surrounded structure, placing it in areas where hair falls more effectively also achieves a good anti-tangling effect. Furthermore, the partially surrounded structure has less contact between the blocking component 3 and the wheel 2, resulting in less resistance. In a preferred embodiment, both the blocking component 3 and the protective component 10 are arc-shaped structures, with their ends aligned or partially overlapping. This allows the blocking component 3 and the protective component 10 to jointly surround the rotating shaft of the wheel 2, achieving an excellent anti-tangling effect.

[0069] In this embodiment, the protective member 10 has a third surface, which is the outer surface of the protective member 10 along the radial direction of the wheel body 2. At least a portion of the third surface is inclined toward the central axis of the wheel body 2 in a direction away from the wheel body 2. For example... Figure 6 As shown, the outer surface of the protective component 10 is inclined relative to the central axis of the wheel body 2, with an inclination angle of γ.

[0070] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, in this embodiment, the third surface (outer surface) of the protective member 10 is designed as a structure that is at least partially inclined. When hair falls onto the protective member 10, it can be guided to the ground more smoothly, avoiding the accumulation of hair on the protective member 10 that could cause jamming or tangling, and further improving the reliability of the roller device.

[0071] Regarding the installation position of the blocking component 3, different options can be chosen in actual implementation, as long as the condition is met: when the wheel 2 rotates relative to the bracket 1, there is a relative rotation between the wheel 2 and the blocking component 3. This is to better achieve the prevention and untangling of hair and remove hair from the wheel 2.

[0072] For example, in actual implementation, the blocking element 3 can be installed on the bracket 1, or the blocking element 3 can be installed on the protective element 10 or other structures.

[0073] In an optional embodiment, the wheel 2 includes a frame 21 and a covering layer 22. The covering layer 22 wraps around the outside of the frame 21 for protection. The covering layer 22 is preferably made of a material with good anti-slip and shock absorption properties. To improve the connection reliability between the frame 21 and the covering layer 22, in this embodiment, the frame is provided with a plurality of openings 211 extending axially. The plurality of openings 211 are arranged sequentially at intervals along the circumference of the wheel 2. The covering layer 22 is provided with a plurality of corresponding connecting parts 221, which are respectively inserted into the plurality of openings 211, thereby improving the connection strength and preventing slippage or detachment of the covering layer 22 from the frame 21. In a preferred embodiment, the covering layer 22 is a coating structure formed by injecting adhesive into the frame 21. The wheel 2 also includes a rotating shaft 5, which passes through the frame 21 to rotatably connect the wheel 2 and the bracket 1.

[0074] In this embodiment, the roller device further includes a connector 4, which is mounted on the bracket 1 to connect the bracket 1 to the location where the roller device needs to be installed. Preferably, the connector 4 is rotatably arranged relative to the bracket 1, so that the wheel 2 can change direction according to travel requirements, improving the flexibility of the roller device.

[0075] In an optional embodiment, at least a portion of the wheel surface of the wheel body 2 is an inclined surface, and the distance from the inclined surface to the central axis of the wheel body 2 gradually decreases along the direction close to the end face of the wheel body 2. By designing the wheel surface of the wheel body 2 to include an inclined surface, when the wheel body 2 rotates, the hair attached to the wheel surface will move towards the end face of the wheel body 2 under the action of the inclined surface, and thus be better swept off by the blocking member 3, reducing the probability of hair adhering and accumulating on the wheel surface of the wheel body 2.

[0076] like Figure 11 and Figure 12 As shown, in this embodiment, there is a preset gap between the wheel body 2 and the bracket 1. The preset gap has a first opening 100 and a second opening 200. When the roller device is working, the direction of movement of the wheel surface of the wheel body 2 within the preset gap is from the first opening 100 toward the second opening 200. The area of ​​the first opening 100 is smaller than the area of ​​the second opening 200, and / or the width of the first opening 100 is smaller than the width of the second opening 200. The width is the distance between the wheel surface of the wheel body 2 and the bracket 1.

[0077] As shown above, the width is the distance between the wheel surface of wheel 2 and bracket 1. It should be noted that when comparing the width of the first opening 100 and the width of the second opening 200, the corresponding positions of the two should be compared. For example, in actual implementation, the roller device can be cut into several sections along the axial direction of wheel 2. For any one of these sections, the first opening 100 and the second opening 200 will each have a specific width. Comparing the widths of the two is then an effective comparison. In this case, the width of the first opening 100 should be smaller than the width of the second opening 200, thereby reducing the amount of hair entering the preset gap and facilitating the discharge of hair from the preset gap, preventing hair from clogging the preset gap between wheel 2 and bracket 1 and causing the roller device to jam.

[0078] The bracket 1 includes a bracket body 11 and an auxiliary mounting component 12. Wheels 2 and a stopper 3 are mounted on the auxiliary mounting component 12. The auxiliary mounting component 12 is detachably mounted to the bracket body 11. This modular assembly structure effectively facilitates the installation of the roller device. In actual assembly, only the stopper 3 and wheels 2 need to be installed onto the auxiliary mounting component 12, and then the auxiliary mounting component 12 is assembled onto the bracket body 11. This reduces the difficulty of assembly operations and improves assembly efficiency.

[0079] Specifically, in this embodiment, the auxiliary mounting component 12 is removably disposed on the bracket body 11; wherein, the bracket body 11 and / or the auxiliary mounting component 12 are provided with a positioning structure to prevent relative movement between the bracket body 11 and the auxiliary mounting component 12 after assembly; and / or, the bracket body 11 and / or the auxiliary mounting component 12 are provided with a guide structure to guide the relative movement of the bracket body 11 and the auxiliary mounting component 12 when they are assembled or disassembled.

[0080] In practical implementation, the specific forms of the positioning and guiding structures can be varied, as long as they can fulfill the functions of positioning and guiding. For example, in a specific implementation, such as... Figure 12 As shown, the positioning structure includes a positioning slot 111 and a positioning protrusion 121. One of them is disposed on the bracket body 11, and the other is disposed on the auxiliary mounting member 12. When the auxiliary mounting member 12 is assembled on the bracket body 11, the positioning protrusion 121 is inserted into the positioning slot 111, thereby positioning the bracket body 11 and the auxiliary mounting member 12 relative to each other. Preferably, there are multiple positioning slots 111 and positioning protrusions 121, which are arranged sequentially at intervals along the circumference of the wheel body 2, thereby better preventing the auxiliary mounting member 12 from rotating relative to the bracket body 11. In this embodiment, the guiding structure includes a guide groove 112 and a guide block 122. One of them is disposed on the bracket body 11, and the other is disposed on the auxiliary mounting member 12. When the auxiliary mounting member 12 is assembled on the bracket body 11, the guide block 122 is inserted into the guide groove 112, thereby guiding the relative movement of the auxiliary mounting member 12 and the bracket body 11.

[0081] In an optional embodiment, the auxiliary mounting member 12 is provided with a first positioning part 123, and the bracket body 11 is provided with a matching second positioning part. When the auxiliary mounting member 12 is assembled onto the bracket body 11, the first positioning part 123 cooperates with the second positioning part, thereby preventing the auxiliary mounting member 12 from moving relative to the bracket body 11 along the axial direction of the wheel 2. Specifically, the first positioning part 123 includes a first positioning surface, and the second positioning part includes a second positioning surface. Both the first and second positioning surfaces are inclined surfaces, which are inclined to the direction in which the auxiliary mounting member 12 is inserted into the bracket body 11. This inclined surface structure makes the bracket body 11 and the auxiliary mounting member 12 fit more tightly, preventing the auxiliary mounting member 12 from moving relative to the bracket body 11 along the axial direction of the wheel 2. In this embodiment, the first positioning part 123 is a structure that protrudes from the auxiliary mounting part 12. The first positioning part 123 is provided with a groove 124. By providing the groove 124, the structural accuracy can be reduced or avoided due to material shrinkage at the first positioning part 123 during the injection molding process, thus ensuring the processing accuracy of the first positioning part 123 and thereby ensuring the installation accuracy and positioning effect of the auxiliary mounting part 12.

[0082] In addition, embodiments of this utility model also provide a cleaning device, which includes a roller device, wherein the roller device is the roller device described above.

[0083] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0084] The roller device of this utility model embodiment includes: a bracket 1; a wheel body 2, which is rotatably mounted on the bracket 1 about its axis; and a blocking member 3, at least a portion of which is disposed on the side of the wheel body 2 along the axial direction of the wheel body 2. The minimum distance from the blocking end 33 of the blocking member 3 to a preset plane along the axial direction of the wheel body 2 is less than or equal to the maximum distance from the end of the wheel body 2 to the preset plane, so as to prevent hair from reaching the pivot 5 of the wheel body 2 through the end of the wheel body 2. The preset plane is a plane passing through the geometric center of the wheel body 2 and perpendicular to the central axis of the wheel body 2. The roller device with the above-described structure incorporates a blocking element 3 at one end of the wheel body 2 along the axial direction. The minimum distance from the blocking end 33 of the blocking element 3 to the preset plane is less than or equal to the maximum distance from the end of the wheel body 2 to the preset plane. Therefore, along the axial direction of the wheel body 2, there is a contact or overlapping area between the blocking element 3 and the wheel body 2. This allows the blocking element 3 to block between the wheel surface of the wheel body 2 and the rotating shaft 5. When the wheel body 2 passes through areas with abundant hair, the hair adhering to the wheel body 2 hangs or falls near the end face of the wheel body 2. When the hair is blocked by the blocking part 3, it will fall off the wheel 2 as the wheel 2 rotates and continuously interferes with the blocking part 3, thus untangling the hair and preventing it from falling onto the shaft of the wheel 2 and getting tangled. This effectively reduces the occurrence of the roller device failing due to hair tangling at the shaft 5, improves the reliability of the roller device in environments with a lot of hair, and solves the technical problem in related technologies that cleaning equipment is prone to being unable to move due to hair tangling on the roller.

[0085] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0086] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0087] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0088] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A roller device, characterized in that, include: Frame (1); Wheel body (2), which is rotatably mounted on the bracket (1) about its axis; A blocking member (3) is provided on the side of the wheel body (2) along the axial direction of the wheel body (2); Along the axial direction of the wheel (2), the minimum distance from the blocking end (33) of the blocking member (3) to the preset plane is less than or equal to the maximum distance from the end of the wheel (2) to the preset plane, so as to prevent hair from reaching the shaft (5) of the wheel (2) through the end of the wheel (2) by the blocking member (3). The preset plane is a plane that passes through the geometric center of the wheel (2) and is perpendicular to the central axis of the wheel (2).

2. The roller device according to claim 1, characterized in that, The blocking member (3) is in contact with the end face of the wheel body (2).

3. The roller device according to claim 1, characterized in that, The end face of the wheel body (2) is provided with a groove, and a portion of the blocking member (3) is embedded in the groove; and / or, a portion of the blocking member (3) contacts the outer peripheral surface of the wheel body (2).

4. The roller device according to claim 3, characterized in that, The blocking member (3) contacts the end face of the wheel body (2); and / or, when the groove is provided on the end face of the wheel body (2), the blocking member (3) contacts the side wall of the groove, the side wall of the groove being the inner wall of the groove along the radial direction of the wheel body (2).

5. The roller device according to claim 1, characterized in that, The blocking member (3) extends along a first preset trajectory, wherein the first preset trajectory is a circular trajectory, or the first preset trajectory is a part of a circular trajectory.

6. The roller device according to claim 1, characterized in that, The blocking member (3) contacts the edge of the end face of the wheel body (2), and the blocking member (3) extends circumferentially along the edge of the end face of the wheel body (2).

7. The roller device according to claim 6, characterized in that, The edge of the end face of the wheel body (2) is provided with an annular protrusion (20), the annular protrusion (20) extends along the circumference of the wheel body (2), and the position where the annular protrusion (20) contacts the blocking member (3) is embedded in the blocking member (3).

8. The roller device according to claim 1, characterized in that, The central angle occupied by the projection of the blocking member (3) on the preset plane is not less than 30°, and the center of the central angle is the projection point of the central axis on the preset plane.

9. The roller device according to claim 1, characterized in that, The blocking member (3) has a first surface (31), which is the outer surface of the blocking member (3) radially toward the wheel body (2). At least a portion of the first surface (31) is inclined toward the central axis of the wheel body (2) in a direction away from the wheel body (2); and / or, The blocking member (3) has a second surface (32), which is the end face of the blocking member (3) along the circumference of the wheel body (2). At least a portion of the second surface (32) is inclined to the radial direction of the wheel body (2) so that the central angle occupied by the outer edge of the blocking member (3) is smaller than the central angle occupied by the inner edge of the blocking member (3). Along the radial direction of the wheel body (2), the outer edge is located outside the inner edge. The center of the central angle is the projection point of the central axis in the preset plane, which is perpendicular to the axial direction of the wheel body (2).

10. The roller device according to any one of claims 1 to 9, characterized in that, At least a portion of the blocking member (3) is made of a flexible material to elastically deform when the blocking member (3) is in contact with the wheel body (2) under stress.

11. The roller device according to claim 10, characterized in that, The flexible material includes at least one of the following: Brushes, organic foam materials, and flexible adhesives.

12. The roller device according to any one of claims 1 to 9, characterized in that, The roller assembly includes: A protective member (10) is disposed on the bracket (1) along the axial direction of the wheel body (2). The protective member (10) is located at the end of the wheel body (2). The protective member (10) extends circumferentially along the wheel body (2). A portion of the protective member (10) is embedded in the end face of the wheel body (2). The blocking member (3) is disposed on the outer edge of the protective member (10).

13. The roller device according to claim 12, characterized in that, The protective component (10) extends along a second preset trajectory, wherein the second preset trajectory is a circular trajectory, or the second preset trajectory is a part of a circular trajectory; When both the arrangement trajectory of the blocking member (3) and the arrangement trajectory of the protective member (10) are non-closed trajectories, the blocking member (3) and the protective member (10) together surround the central axis of the wheel body (2).

14. The roller device according to claim 12, characterized in that, The protective member (10) has a third surface, which is the outer surface of the protective member (10) along the radial direction of the wheel body (2). At least a portion of the third surface is inclined toward the central axis of the wheel body (2) in a direction away from the wheel body (2).

15. The roller device according to any one of claims 1 to 9, characterized in that, When the wheel (2) rotates relative to the bracket (1), there is a relative rotation between the wheel (2) and the blocking member (3).

16. The roller device according to claim 12, characterized in that, The blocking member (3) is installed on the bracket (1), or the blocking member (3) is installed on the protective member (10).

17. The roller device according to any one of claims 1 to 9, characterized in that, At least a portion of the wheel surface of the wheel body (2) is an inclined surface, and the distance from the inclined surface to the central axis of the wheel body (2) gradually decreases along the direction close to the end face of the wheel body (2).

18. The roller device according to any one of claims 1 to 9, characterized in that, There is a preset gap between the wheel body (2) and the bracket (1). The preset gap has a first opening (100) and a second opening (200). When the roller device is working, the direction of movement of the wheel surface of the wheel body (2) within the preset gap is: from the first opening (100) toward the second opening (200). Wherein, the area of ​​the first opening (100) is smaller than the area of ​​the second opening (200), and / or, the width of the first opening (100) is smaller than the width of the second opening (200), the width being the distance between the wheel surface of the wheel body (2) and the bracket (1).

19. The roller device according to any one of claims 1 to 9, characterized in that, The bracket (1) includes a bracket body (11) and an auxiliary mounting component (12). The wheel (2) is mounted on the auxiliary mounting component (12), and the blocking component (3) is mounted on the auxiliary mounting component (12). The auxiliary mounting component (12) is detachably mounted on the bracket body (11).

20. The roller device according to claim 19, characterized in that, The auxiliary mounting component (12) is removably mounted on the bracket body (11); The bracket body (11) and / or the auxiliary mounting component (12) are provided with positioning structures to prevent relative movement between the bracket body (11) and the auxiliary mounting component (12) after assembly; and / or, the bracket body (11) and / or the auxiliary mounting component (12) are provided with guiding structures to guide the relative movement of the bracket body (11) and the auxiliary mounting component (12) when they are assembled or disassembled.

21. A cleaning device, characterized in that, The cleaning equipment includes a roller device, wherein the roller device is the roller device according to any one of claims 1 to 20.

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