Drum mounting structure, drum assembly, and cleaning apparatus

By employing annular protrusions of different radial dimensions and rotation limiting components in the roller assembly, the problems of installation complexity and reliability of the roller assembly are solved, achieving the effects of simplified operation and improved equipment stability.

CN224369765UActive Publication Date: 2026-06-19GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2025-06-05
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing cleaning equipment has a complex roller assembly fixing structure, is cumbersome to operate, has low reliability and a high failure rate, and the mop assembly is not effective in cleaning complex terrain, easily creating cleaning dead spots.

Method used

The design incorporates annular protrusions of different radial dimensions and rotation limiting components to ensure proper roller installation and prevent the end cap from rotating with the roller. The assembly reliability is improved through the use of interlocking ribs and interlocking slots.

Benefits of technology

It simplifies the installation process of the rollers, reduces misinstallation and misalignment, improves the rotational stability of the rollers and the reliability of the equipment, and reduces the failure rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of electrical equipment discloses a drum mounting structure, drum assembly and cleaning equipment, this drum mounting structure adopts different assembly structure between two drums and end cover, can reduce two drums and end cover misloading phenomenon, ensure that user cannot install or misplacement installation two drums reversely. The drum mounting structure is used for installing the drum assembly of cleaning equipment, and the drum assembly includes drum support and at least two drums, and the drum is detachably arranged in the drum support, and the drum mounting structure includes: end cover, is arranged in one end of drum, and one end of each drum is provided with the mounting piece of different structure, and the end cover is provided with at least two assembly pieces with at least two mounting pieces one one cooperation, and the end cover is connected with all drum cover simultaneously through at least two assembly pieces.
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Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, specifically to a roller mounting structure, roller assembly, and cleaning equipment. Background Technology

[0002] In recent years, with the rapid development of smart home devices, cleaning equipment such as robotic vacuum cleaners have gradually become important tools for household cleaning due to their efficient and convenient cleaning functions. However, existing robotic vacuum cleaners still have some pain points and shortcomings in their design and use, especially in the design and installation of the mop assembly. These issues directly affect the user experience and market competitiveness of the products.

[0003] Most cleaning devices on the market, such as robotic vacuum cleaners, use a single mop design, which has limited effectiveness in cleaning complex terrains (such as carpets and tile grout), easily leading to cleaning blind spots or incomplete cleaning. Furthermore, while some products employ a dual-mop design, the two sets of mops do not work well together, making it difficult to achieve efficient sweeping and mopping functions. Additionally, the mop assembly of existing products is complex, and users are prone to problems such as installing the mop in the wrong direction or misaligning it during operation, resulting in reduced cleaning effectiveness or even damage to the device. Utility Model Content

[0004] In view of this, the present invention provides a roller mounting structure, a roller assembly, and a cleaning device to solve the problems of complex fixing structure, cumbersome operation, low reliability, and high failure rate of existing cleaning devices' roller assembly.

[0005] In a first aspect, this utility model provides a roller mounting structure for mounting a roller assembly of a cleaning device. The roller assembly includes a roller bracket and at least two rollers, wherein the rollers are detachably mounted within the roller bracket. The roller mounting structure includes:

[0006] An end cap is disposed at one end of the rollers. Each roller has a mounting component with a different structure at one end. The end cap is provided with at least two fittings that mate with at least two of the mounting components. The end cap is simultaneously connected to all the rollers through at least two fittings.

[0007] Beneficial effects: The roller mounting structure of this utility model, by adopting different assembly structures between the two rollers and the end cover, can reduce the phenomenon of mis-installation of the two rollers and the end cover, and ensure that users cannot install the two rollers in reverse or in a misaligned manner.

[0008] In one optional embodiment, the mounting member has a first annular protrusion on the end face facing the mounting accessory, and the mounting accessory has a second annular protrusion that fits onto the first annular protrusion on the end face facing the mounting member, wherein the radial dimension of the first annular protrusion on the mounting member of each roller is different.

[0009] Beneficial effects: The roller mounting structure of this utility model has different first annular protrusions with different radial dimensions on different rollers. At the same time, the end cover has second annular protrusions with different radial dimensions corresponding to the first annular protrusions with different radial dimensions. This ensures that each roller can only be installed in a designated position. When the roller is misaligned, the first annular protrusion on the roller will interfere with the second annular protrusion on the end cover, causing the roller to be unable to be installed on the end cover properly. This reminds the user to install the roller in the correct position on the end cover.

[0010] In an alternative embodiment, when the roller assembly includes two rollers, the first annular protrusion on one of the mounting members is fitted into the second annular protrusion of one of the mounting members, and the first annular protrusion on the other mounting member is fitted outside the second annular protrusion of the other mounting member.

[0011] Beneficial effects: The roller mounting structure of this utility model, by setting the first annular protrusion and the second annular protrusion to be inner and outer interlocked, on the one hand, can prevent the first annular protrusion on the roller from interfering with the second annular protrusion on the end cover when the roller is misaligned during assembly, and on the other hand, can increase the contact surface between the roller and the end cover, thereby allowing the roller to rotate relative to the end cover and reducing the phenomenon of roller skew during rotation.

[0012] In an optional embodiment, a rotation limiting component is further included, which is disposed between the end cap and the roller, and is used to prevent the end cap from rotating with the roller.

[0013] Beneficial effects: With the roller mounting structure of this utility model, when the end cover is connected to one end of the roller, the end cover will not rotate with the roller, so as to avoid affecting the cleaning work of the roller, and at the same time, it can provide reliable protection for the roller.

[0014] In one alternative embodiment, the rotation limiting assembly includes the mounting member and a bearing, the mounting member being fixed to the roller, and one of the inner and outer rings of the bearing being fixed to the mounting member, while the other is fixed to the end cap.

[0015] Beneficial effects: The roller mounting structure of this utility model includes a rotation limiting component consisting of a mounting part and a bearing. This rotation limiting component has a relatively simple structure, is easy to set up and install, and has good structural reliability.

[0016] In one alternative embodiment, the rotation limiting assembly further includes a fixed shaft, one of the inner and outer rings of the bearing being fixed to the mounting member via the fixed shaft.

[0017] Beneficial effects: The roller mounting structure of this utility model includes a fixed shaft in the rotation limiting component. By setting the fixed shaft, it is easy to fix one of the inner ring and outer ring of the bearing to the mounting part, which facilitates the structural connection and improves the structural reliability.

[0018] In one alternative embodiment, the end cap has an assembly groove on the side facing the roller, and the bearing is placed in the assembly groove.

[0019] Beneficial effects: The roller mounting structure of this utility model improves the stability of the bearing position by placing the bearing in the assembly groove of the end cover, thereby making the rotation of the roller stable and reliable.

[0020] In one optional embodiment, the mounting component is configured as a mounting cylinder, which is embedded inside the roller. The outer wall of the mounting cylinder is provided with a circumferential limiting structure and an axial snap-fit ​​structure that cooperate with the inner wall of the roller. The end of the mounting cylinder is provided with a flange structure that overlaps with the outer edge of the roller opening.

[0021] Beneficial effects: The roller mounting structure of this utility model features a circumferential limiting structure for the mounting cylinder to prevent circumferential rotation of the mounting cylinder relative to the roller, further improving the assembly reliability of the mounting cylinder and the roller. The mounting column of the mounting cylinder has an interference fit with the inner ring of the bearing, allowing the mounting cylinder to rotate under the support of the bearing's inner ring, reducing rotational misalignment between the mounting cylinder and the roller.

[0022] In one alternative embodiment, a sleeve is provided at the other end of the roller, the sleeve being fixed to the roller and rotating with the roller.

[0023] Beneficial effects: In the roller mounting structure of this utility model, the sleeve is fixed to the roller, the sleeve can rotate with the roller, and the sleeve can move back and forth along the axial direction with the roller. The sleeve can be connected to the output shaft of the drive component, and the user can bear the torque of the output shaft instead of the roller, reducing the risk of the output shaft of the drive component damaging the roller.

[0024] In one optional embodiment, the sleeve is provided with a sleeve circumferential limiting mechanism, which is used to prevent the sleeve from rotating circumferentially relative to the roller.

[0025] Beneficial effects: The roller mounting structure of this utility model has a sleeve circumferential limiting mechanism to prevent the sleeve from rotating circumferentially relative to the roller, thereby further improving the assembly reliability of the sleeve and the roller.

[0026] In one optional embodiment, the sleeve circumferential limiting mechanism includes a plug-in rib and a plug-in groove that fit together. The plug-in rib is disposed on one of the sleeve and the roller, and the plug-in groove is disposed on the other.

[0027] Beneficial effects: The roller installation structure of this utility model, in which the sleeve and the roller are fitted together by the insertion rib and the insertion groove, can improve the smoothness of the assembly of the sleeve and the roller and reduce the phenomenon of the sleeve tilting or misalignment inside the roller. On the other hand, the insertion rib and the insertion groove can prevent the sleeve from rotating circumferentially relative to the roller.

[0028] In one optional embodiment, an elastic pad is provided outside the insertion rib, and the insertion rib is interference-fitted with the insertion groove through the elastic pad.

[0029] Beneficial effects: The roller mounting structure of this utility model has an elastic pad that can fill the gap between the insert rib and the insert groove, thereby reducing the shaking phenomenon of the insert rib inside the insert groove.

[0030] In one optional embodiment, both the insert rib and the insert groove are configured to extend along the axial direction of the roller, and both the insert rib and the insert groove are configured to be distributed in multiples at intervals along the circumference of the roller.

[0031] Beneficial effects: The roller mounting structure of this utility model, with multiple interlocking ribs and interlocking slots, can make the sleeve and roller evenly stressed in the circumferential direction, reducing the phenomenon of stress concentration between the sleeve and roller.

[0032] Secondly, the present invention also provides a roller assembly, including a roller bracket, at least two rollers, and a roller mounting structure as described above, wherein the rollers are mounted through the roller mounting structure.

[0033] Since the roller assembly of this utility model includes the roller mounting structure of this utility model and has the same beneficial effects as the roller disassembly and assembly structure, it will not be described in detail here.

[0034] Thirdly, this utility model also provides a cleaning device, including the roller mounting structure as described above or including the roller assembly as described above.

[0035] Since the cleaning equipment of this utility model includes the roller mounting structure or roller assembly of this utility model, and has the same beneficial effects as the roller disassembly and assembly structure or roller assembly, it will not be described in detail here.

[0036] In one alternative implementation, the cleaning equipment is one of a sweeping robot, a mopping robot, a floor scrubbing robot, and a cleaning robot.

[0037] Beneficial effects: The cleaning equipment of this utility model can be one of the following: sweeping machine, mopping machine, floor scrubbing machine and cleaning robot, with a wide range of applications. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is an exploded view of the roller assembly of this utility model. Figure 1 ;

[0040] Figure 2 This is an exploded view of the roller assembly of this utility model. Figure 2 ;

[0041] Figure 3 This is an axial sectional view of the roller assembly of this utility model;

[0042] Figure 4 This is a radial sectional view of the roller assembly of this utility model;

[0043] Figure 5 for Figure 3 An enlarged schematic diagram of part A in the middle;

[0044] Figure 6 for Figure 3 Enlarged schematic diagram of part B in the middle;

[0045] Figure 7 This is an exploded view of a partial structure of the roller assembly of this utility model;

[0046] Figure 8 This is an assembly drawing of the mounting component and end cap of this utility model;

[0047] Figure 9 This is an exploded view of the mounting component and end cap of this utility model;

[0048] Figure 10 for Figure 8 Cross-sectional view of the mounting components and end caps;

[0049] Figure 11 This is a cross-sectional view of the roller and end cap of this utility model;

[0050] Figure 12 This is an anatomical view of the mounting component and end cap of this utility model.

[0051] Explanation of reference numerals in the attached figures:

[0052] 1. Roller assembly; 101. Roller support; 102. Roller; 1021. Insertion slot;

[0053] 2. End cap; 201. Assembly parts; 2011. Second annular protrusion; 2012. Assembly slot;

[0054] 3. Mounting components; 31. First annular protrusion; 32. Circumferential limiting structure; 33. Axial snap-fit ​​structure;

[0055] 4. Bearings;

[0056] 5. Fix the shaft;

[0057] 6. Sleeve; 61. Insertion rib; 611. Elastic pad;

[0058] 7. Output shaft. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] The following is combined with Figures 1-12 This describes embodiments of the roller 102 mounting structure, roller assembly 1, and cleaning equipment of this utility model.

[0061] like Figures 1 to 12 As shown, according to an embodiment of the present invention, in a first aspect, a roller 102 mounting structure is provided for mounting a roller assembly 1 of a cleaning device. The roller assembly 1 includes a roller bracket 101 and at least two rollers 102. The rollers 102 are detachably mounted in the roller bracket 101. The roller 102 mounting structure includes an end cap 2 disposed at one end of the rollers 102. Each roller 102 has a mounting member 3 of a different structure at one end. The end cap 2 is provided with at least two mounting parts 201 that cooperate with at least two of the mounting members 3. The end cap 2 is simultaneously connected to all the rollers 102 through at least two mounting parts 201.

[0062] This roller 102 mounting structure, by using different assembly structures between the two rollers 102 and the end cover 2, can reduce the possibility of mis-installation of the two rollers 102 and the end cover 2, ensuring that users cannot install the two rollers 102 in reverse or in a misaligned manner.

[0063] The roller 102 mounting structure is applied to cleaning equipment, such as dual-roller 102 sweepers, dual-roller 102 handheld floor scrubbers, floor cleaning robots, and other cleaning equipment. The cleaning equipment includes a roller assembly 1, which includes a roller bracket 101 and a roller 102. The roller 102 is detachably mounted inside the roller bracket 101, and the roller 102 can be easily disassembled and replaced using the roller 102 mounting structure of this embodiment.

[0064] Specifically, the roller assembly 1 has a generally elongated strip-shaped structure. The roller bracket 101, also known as a telescopic bracket, is the shell structure of the roller assembly 1. The roller bracket 101 has a certain structural strength and can support and mount the roller 102, etc. Furthermore, structural components such as a dirt collection tank and a water channel plate can also be installed on the roller bracket 101. The roller 102 is installed inside the roller bracket 101, and the roller 102 is the roller 102 mop. At least two rollers 102 are provided, such as two, three, or four. In this embodiment, the roller 102 structure is a double-roller structure, meaning there are two rollers 102. The rollers 102 are located on the side of the roller bracket 101 facing the surface to be cleaned. When the cleaning equipment is working, the rollers 102 can rotate and roll to clean the surface. The roller 102 mounting structure of this embodiment can be applied to cleaning equipment such as sweepers, mops, floor scrubbers, or cleaning robots. Depending on the application scenario of different cleaning equipment, the surface to be cleaned can be a floor, a wall, etc. In this embodiment, the surface to be cleaned is a floor.

[0065] End cap 2 is disposed at one end of roller 102. End cap 2 is used to seal one end of roller 102 to make the overall appearance of the machine more aesthetically pleasing and neat, and to prevent dust, debris, etc. from entering the interior of roller 102, affecting the operation and service life of roller 102. Moreover, the cooperation between end cap 2 and roller 102 makes it easy to install all rollers 102, simplifying operation and improving installation efficiency. In this embodiment, there is one end cap 2, which can simultaneously cover and connect with all rollers 102, thereby improving assembly efficiency and simplifying operation.

[0066] Furthermore, such as Figure 5 as well as Figures 7 to 9 As shown, the mounting component 3 has a first annular protrusion 31 on the end face facing the mounting part 201, and the mounting part 201 has a second annular protrusion 2011 that is fitted with the first annular protrusion 31 on the end face facing the mounting component 3. The radial dimensions of the first annular protrusion 31 on the mounting component 3 of each roller 102 are different.

[0067] In the roller 102 mounting structure of this utility model, different rollers 102 are provided with first annular protrusions 31 of different radial dimensions. At the same time, the end cover 2 is provided with second annular protrusions 2011 of different radial dimensions corresponding to the first annular protrusions 31 of different radial dimensions. This ensures that each roller 102 can only be installed in a designated position. When the roller 102 is misaligned, the first annular protrusion 31 on the roller 102 will interfere with the second annular protrusion 2011 on the end cover 2, causing the roller 102 to fail to be properly installed on the end cover 2. This serves as a reminder to the user to install the roller 102 in the correct position on the end cover 2.

[0068] Furthermore, such as Figure 5 as well as Figures 7 to 9 As shown, when the roller assembly 1 includes two rollers 102, the first annular protrusion 31 on one mounting member 3 is fitted into the second annular protrusion 2011 of one mounting accessory 201, and the first annular protrusion 31 on the other mounting member 3 is fitted outside the second annular protrusion 2011 of the other mounting accessory 201.

[0069] The roller 102 mounting structure of this utility model, by setting the first annular protrusion 31 and the second annular protrusion 2011 to be inner and outer interlocked, on the one hand, can prevent the first annular protrusion 31 on the roller 102 from interfering with the second annular protrusion 2011 on the end cover 2 when the roller 102 is misaligned during assembly, and on the other hand, can increase the contact surface between the roller 102 and the end cover 2, so that the roller 102 can rotate relative to the end cover 2 and reduce the phenomenon of skewness of the roller 102 during rotation.

[0070] Furthermore, such as Figures 10 to 12 As shown, the roller 102 mounting structure also includes a rotation limiting component, which is disposed between the end cover 2 and the roller 102. The rotation limiting component is used to prevent the end cover 2 from rotating with the roller 102.

[0071] When the end cap 2 is connected to one end of the roller 102, the end cap 2 will not rotate with the roller 102 to avoid affecting the cleaning operation of the roller 102, and at the same time, it can provide reliable protection for the roller 102.

[0072] Furthermore, such as Figures 10 to 12 As shown, the rotation limiting assembly includes a mounting member 3 and a bearing 4. The mounting member 3 is fixed to the roller 102, and one of the inner ring and the outer ring of the bearing 4 is fixed to the mounting member 3, while the other is fixed to the end cap 2.

[0073] The rotation limiting assembly is used to prevent the end cap 2 from rotating with the roller 102. Specifically, the rotation limiting assembly includes a mounting member 3 and a bearing 4. The mounting member 3 is fixed to the roller 102, and one of the inner ring and the outer ring of the bearing 4 is fixed to the mounting member 3, while the other is fixed to the end cap 2.

[0074] In this embodiment, the mounting component 3 is fixed to one end of the end cap 2 of the roller 102, the inner ring of the bearing 4 is fixed to the mounting component 3, and the outer ring of the bearing 4 is fixed to the end cap 2, so that the mounting component 3 can rotate with the roller 102, while the end cap 2 will not rotate with the roller 102.

[0075] In other embodiments, the outer ring of the bearing 4 may be fixed to the mounting member 3, and the inner ring may be fixed to the end cap 2.

[0076] Furthermore, such as Figures 10 to 12 As shown, the rotation limiting assembly also includes a fixed shaft 5, and one of the inner and outer rings of the bearing 4 is fixed to the mounting component 3 via the fixed shaft 5.

[0077] To facilitate structural installation, the rotation limiting assembly also includes a fixed shaft 5, through which one of the inner and outer rings of the bearing 4 is fixed to the mounting member 3. In this embodiment, the mounting member 3 is connected and fixed to the fixed shaft 5, and the fixed shaft 5 is also fixed to the inner ring of the bearing 4, thereby facilitating the connection and setup of the structure.

[0078] To improve connection reliability, the fixed shaft 5 is interference-fitted with the mounting part 3, the fixed shaft 5 is interference-fitted with the inner ring of the bearing 4, and the outer ring of the bearing 4 is interference-fitted with the end cover 2. Simultaneously, the end cover 2 is also fastened to the outer ring of the bearing 4 to prevent the end cover 2 from detaching axially.

[0079] Furthermore, such as Figures 10 to 12 As shown, the end cap 2 has an assembly groove 2012 on the side facing the roller 102, and the bearing 4 is placed in the assembly groove 2012.

[0080] An assembly 201 is provided on the side of the end cap 2 facing the roller 102. The assembly 201 protrudes from the inner side of the end cap 2 and has an assembly groove 2012 inside, with the opening of the assembly groove 2012 facing the roller 102. The bearing 4 is disposed in the assembly groove 2012 to facilitate the stable installation of the bearing 4 and to facilitate the fixed connection between the bearing 4 and the fixed shaft 5 and the end cap 2.

[0081] Furthermore, such as Figures 1 to 5 As shown, the mounting component 3 is configured as a mounting cylinder, which is embedded inside the roller 102. The outer wall of the mounting cylinder is provided with a circumferential limiting structure 32 and an axial snap-fit ​​structure 33 that cooperate with the inner wall of the roller 102. The end of the mounting cylinder is provided with a flange structure that overlaps with the outer edge of the cylinder opening of the roller 102.

[0082] The roller 102 mounting structure of this utility model includes a circumferential limiting structure 32 for the mounting cylinder to prevent circumferential rotation of the mounting cylinder relative to the roller 102, thereby further improving the assembly reliability of the mounting cylinder and the roller 102. The mounting column of the mounting cylinder is interference-fitted with the inner ring of the bearing 4, allowing the mounting cylinder to rotate under the support of the inner ring of the bearing 4, reducing the rotational misalignment of the mounting cylinder and the roller 102.

[0083] Furthermore, such as Figure 2 , 4 As shown in Figures 6 and 11, a sleeve 6 is also provided at the other end of the roller 102. The sleeve 6 is fixed to the roller 102 and can rotate with the roller 102.

[0084] The sleeve 6 is fixed to the roller 102. The sleeve 6 can rotate with the roller 102 and can reciprocate axially with the roller 102. The sleeve 6 can be connected to the output shaft 7 of the drive component. The user can bear the torque of the output shaft 7 instead of the roller 102, reducing the risk of the output shaft 7 of the drive component damaging the roller 102.

[0085] Furthermore, such as Figure 2 , 4 As shown in Figures 6 and 11, the sleeve 6 is provided with a sleeve 6 circumferential limiting mechanism, which is used to prevent the sleeve 6 from rotating circumferentially relative to the roller 102.

[0086] The roller 102 mounting structure of this utility model includes a circumferential limiting mechanism for the sleeve 6 to prevent the sleeve 6 from rotating circumferentially relative to the roller 102, thereby further improving the assembly reliability of the sleeve 6 and the roller 102.

[0087] Furthermore, such as Figure 2 , 4 As shown in Figures 6 and 11, the circumferential limiting mechanism of the sleeve 6 includes a plug-in rib 61 and a plug-in groove 1021 that are interlocked. The plug-in rib 61 is disposed on one of the sleeve 6 and the roller 102, and the plug-in groove 1021 is disposed on the other.

[0088] In the roller 102 installation structure of this utility model, the sleeve 6 and the roller 102 are engaged by the insertion rib 61 and the insertion groove 1021. On the one hand, it can improve the smoothness of the assembly of the sleeve 6 and the roller 102 and reduce the phenomenon of the sleeve 6 being tilted or not properly assembled inside the roller 102. On the other hand, the insertion rib 61 and the insertion groove 1021 can prevent the sleeve 6 from rotating circumferentially relative to the roller 102.

[0089] Furthermore, such as Figure 2 , 4As shown in Figures 6 and 11, an elastic pad 611 is provided outside the insertion rib 61, and the insertion rib 61 is interference-fitted with the insertion groove 1021 through the elastic pad 611.

[0090] In the roller 102 mounting structure of this utility model, the elastic pad 611 can fill the gap between the insertion rib 61 and the insertion groove 1021, thereby reducing the shaking phenomenon of the insertion rib 61 inside the insertion groove 1021.

[0091] Furthermore, such as Figure 2 , 4 As shown in Figures 6 and 11, both the insertion rib 61 and the insertion groove 1021 are configured to extend along the axial direction of the roller 102, and both the insertion rib 61 and the insertion groove 1021 are configured to be distributed in multiples at intervals along the circumference of the roller 102.

[0092] The roller 102 mounting structure of this utility model, with multiple interlocking ribs 61 and interlocking grooves 1021 cooperating, can make the sleeve 6 and the roller 102 be evenly stressed in the circumferential direction, reducing the phenomenon of stress concentration between the sleeve 6 and the roller 102.

[0093] like Figures 1 to 12 As shown, this embodiment also provides a roller assembly 1, including a roller bracket 101, at least two rollers 102, and a roller 102 mounting structure as described above, wherein the rollers 102 are mounted through the roller 102 mounting structure.

[0094] The roller assembly 1 includes a roller bracket 101 and rollers 102. In this embodiment, two rollers 102 are provided and arranged in parallel. The rollers 102 are detachably mounted on the bottom of the roller bracket 101. The rollers 102 of this roller assembly 1 are installed through a roller 102 mounting structure. The end cap 2 in the roller 102 mounting structure can simultaneously cover and connect with all rollers 102. With the help of the locking component, all rollers 102 can be easily locked or unlocked at the same time, so as to realize the disassembly and installation of multiple rollers 102 at the same time. This is convenient, quick, easy and simple, which can significantly improve the replacement efficiency of rollers 102. It also simplifies the fixing structure of rollers 102, reduces the difficulty of operation, and because the overall structure of the roller 102 mounting structure is relatively simple, it is not easy to be damaged, has good structural stability and high reliability, which helps to reduce the failure rate of the roller assembly 1 and ensure its service life.

[0095] This embodiment also provides a cleaning device, including the roller 102 mounting structure as described above or the roller assembly 1 as described above.

[0096] In this cleaning equipment, the roller assembly 1 is assembled and disassembled using the roller 102 mounting structure of this embodiment, which is simple to operate and highly efficient. The roller 102 mounting structure itself is simple in structure and occupies a small volume. This cleaning equipment also has other structural components common to existing cleaning equipment, which will not be elaborated upon here.

[0097] Furthermore, the cleaning equipment is one of the following: a sweeping robot, a mopping robot, a floor scrubbing robot, and a cleaning robot. For example, a sweeping robot, a handheld floor scrubbing robot, and a fully automatic floor scrubbing robot. In this embodiment, the cleaning equipment is a cleaning robot.

[0098] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A roller mounting structure, characterized in that, A roller assembly (1) for mounting cleaning equipment, the roller assembly (1) including a roller bracket (101) and at least two rollers (102), the rollers (102) being detachably disposed within the roller bracket (101), the roller (102) mounting structure including: An end cap (2) is disposed at one end of the roller (102). Each roller (102) has a mounting component (3) of a different structure at one end. The end cap (2) is provided with at least two mounting parts (201) that mate with at least two of the mounting components (3). The end cap (2) is simultaneously connected to all the rollers (102) via at least two fittings (201).

2. The roller mounting structure according to claim 1, characterized in that, The mounting component (3) has a first annular protrusion (31) on its end face facing the mounting part (201), and the mounting part (201) has a second annular protrusion (2011) that is fitted with the first annular protrusion (31) on its end face facing the mounting component (3). The radial dimensions of the first annular protrusion (31) on the mounting component (3) of each roller (102) are different.

3. The roller mounting structure according to claim 2, characterized in that, In the case where the roller assembly (1) includes two rollers (102), the first annular protrusion (31) on one of the mounting members (3) is fitted into the second annular protrusion (2011) of one of the mounting parts (201), and the first annular protrusion (31) on the other mounting member (3) is fitted outside the second annular protrusion (2011) of the other mounting part (201).

4. The roller mounting structure according to claim 1, characterized in that, It also includes a rotation limiting component, which is disposed between the end cap (2) and the roller (102) to prevent the end cap (2) from rotating with the roller (102).

5. The roller mounting structure according to claim 4, characterized in that, The rotation limiting assembly includes the mounting part (3) and the bearing (4), the mounting part (3) being fixed to the roller (102), and one of the inner ring and the outer ring of the bearing (4) being fixed to the mounting part (3), and the other being fixed to the end cap (2).

6. The roller mounting structure according to claim 5, characterized in that, The rotation limiting assembly also includes a fixed shaft (5), one of the inner and outer rings of the bearing (4) being fixed to the mounting member (3) via the fixed shaft (5).

7. The roller mounting structure according to claim 5, characterized in that, The end cap (2) is provided with an assembly groove (2012) on the side facing the roller (102), and the bearing (4) is placed in the assembly groove (2012).

8. The roller mounting structure according to claim 5, characterized in that, The mounting component (3) is configured as a mounting cylinder, which is embedded inside the roller (102). The outer wall of the mounting cylinder is provided with a circumferential limiting structure (32) and an axial snap-fit ​​structure (33) that cooperate with the inner wall of the roller (102). The end of the mounting cylinder is provided with a flange structure that overlaps with the outer edge of the cylinder opening of the roller (102).

9. The roller (102) mounting structure according to claim 1, characterized in that, The other end of the roller (102) is also provided with a sleeve (6), which is fixed to the roller (102) and can rotate with the roller (102).

10. The roller mounting structure according to claim 9, characterized in that, The sleeve (6) is provided with a sleeve (6) circumferential limiting mechanism, which is used to prevent the sleeve (6) from rotating circumferentially relative to the roller (102).

11. The roller mounting structure according to claim 10, characterized in that, The circumferential limiting mechanism of the sleeve (6) includes a plug-in rib (61) and a plug-in groove (1021) for plugging and fitting. The plug-in rib (61) is disposed on one of the sleeve (6) and the roller (102), and the plug-in groove (1021) is disposed on the other.

12. The roller mounting structure according to claim 11, characterized in that, An elastic pad (611) is provided outside the insertion rib (61), and the insertion rib (61) is interference-fitted with the insertion groove (1021) through the elastic pad (611).

13. The roller mounting structure according to claim 11, characterized in that, Both the insertion rib (61) and the insertion groove (1021) are configured to extend along the axial direction of the roller (102), and both the insertion rib (61) and the insertion groove (1021) are configured to be distributed in multiples at intervals along the circumference of the roller (102).

14. A roller assembly, characterized in that, It includes a roller support (101), at least two rollers (102), and a roller (102) mounting structure as described in any one of claims 1-13, wherein the rollers (102) are mounted by the roller (102) mounting structure.

15. A cleaning device, characterized in that, It includes the roller (102) mounting structure as described in any one of claims 1-13 or the roller assembly (1) as described in claim 14.

16. The cleaning equipment according to claim 15, characterized in that, The cleaning equipment is one of the following: sweeping machine, mopping machine, floor scrubbing machine, and cleaning robot.