Roller structure, mopping system and cleaning equipment

Abstract

The utility model relates to the field of electrical equipment, and discloses a roller structure, a mopping system and cleaning equipment, the roller structure can effectively clean corner areas, the telescopic process of a roller assembly is stable, and secondary pollution and obstacle avoidance can be avoided. The roller structure comprises a roller assembly, a lifting mechanism, a guide rail mechanism and a telescopic mechanism. The guide rail mechanism is arranged between the first support and the roller assembly. The roller assembly telescopically moves relative to the first support through the guide rail mechanism. The telescopic mechanism comprises a first control assembly and a second control assembly which are used for applying acting force to the roller assembly, and when the acting force of the second control assembly to the roller assembly is smaller than that of the first control assembly to the roller assembly, the first control assembly drives the roller assembly to stretch out relative to the first support. When the acting force of the second control assembly on the roller assembly is larger than that of the first control assembly on the roller assembly, the second control assembly drives the roller assembly to retract relative to the first support.

Description

Technical Field

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

[0002] Cleaning equipment (such as robotic vacuum cleaners, mops, and floor scrubbers) is a type of equipment primarily used for sanitation and cleaning. It offers advantages such as saving time and effort, low noise, and being lightweight and compact. In recent years, with the continuous development of technology, cleaning equipment has become increasingly intelligent, capable of cleaning within designated areas, greatly freeing people's hands and bringing convenience to their lives.

[0003] Existing cleaning equipment mainly consists of a base and a roller assembly. The roller assembly is fixed to the bottom of the base, and typically does not extend beyond the horizontal dimensions of the base. This means that when cleaning edges and corners, the roller assembly cannot clean against the edges, creating blind spots and resulting in poor cleaning performance. Over time, dust easily accumulates in these corners. Furthermore, when the cleaning equipment returns to the base station to clean the roller, there is a risk of secondary contamination, leading to a poor user experience. Utility Model Content

[0004] In view of this, the present invention provides a roller structure, a mopping system and a cleaning device to solve the problems of existing cleaning devices having blind spots, poor cleaning effect in corner areas, secondary pollution and poor user experience.

[0005] In a first aspect, this utility model provides a roller structure for use in cleaning equipment, the roller structure comprising:

[0006] Roller assembly;

[0007] The lifting mechanism includes a first bracket and a lifting drive assembly. The roller assembly is disposed at the bottom of the first bracket, and the output end of the lifting drive assembly drives the first bracket to move up and down.

[0008] A guide rail mechanism is disposed between the first bracket and the roller assembly, and the roller assembly can move telescopically relative to the first bracket through the guide rail mechanism;

[0009] A telescopic mechanism is provided on the first support. The telescopic mechanism includes a first control component and a second control component for applying a force to the roller assembly. When the force exerted by the second control component on the roller assembly is less than the force exerted by the first control component on the roller assembly, the first control component causes the roller assembly to extend relative to the first support. When the force exerted by the second control component on the roller assembly is greater than the force exerted by the first control component on the roller assembly, the second control component causes the roller assembly to retract relative to the first support.

[0010] Beneficial Effects: The roller structure of this utility model includes a roller assembly, a lifting mechanism, a guide rail mechanism, and a telescopic mechanism. The roller assembly can telescopically move. When cleaning corner areas such as walls, the force exerted by the second control component on the roller assembly is less than the force exerted by the first control component. The first control component drives the roller assembly to extend relative to the first support, allowing the roller assembly to be closer to the corner area without being affected by the position of the first support, achieving "edge cleaning" to effectively clean corner areas, significantly reducing cleaning blind spots and greatly improving cleaning effect. When cleaning corner areas is not needed (i.e., when the roller assembly needs to be reset), the force exerted by the second control component on the roller assembly is greater than the force exerted by the first control component, causing the roller assembly to retract relative to the first support. Through the coordinated operation of the first and second control components, the position of the roller assembly can be adjusted, making the roller assembly more controllable and the telescopic movement process of the roller assembly smoother. This roller structure not only has a better cleaning effect but also provides a better user experience. In addition, the guide rail mechanism between the first support and the roller assembly ensures smoother and more stable movement of the roller assembly, improving the stability and reliability of the structure. Furthermore, the roller assembly can also move vertically, allowing it to rise without touching the ground when the cleaning equipment returns to the base station, thus preventing secondary contamination of the cleaned surface and allowing it to avoid carpets and other objects, enhancing the user experience.

[0011] In one alternative embodiment, the roller assembly includes a second support, and the guide rail mechanism is disposed between the first support and the second support.

[0012] Beneficial effects: The roller structure of this utility model has a guide rail mechanism set between the first support and the second support, which can save installation space, make the overall structure more compact and reasonable, and at the same time make the roller assembly more stable in telescopic movement relative to the first support.

[0013] In one optional embodiment, the guide rail mechanism includes a first guide rail and a second guide rail that slide together, wherein one of the first guide rail and the second guide rail is disposed on the bottom surface of the first bracket, and the other is disposed on the top surface of the second bracket.

[0014] Beneficial effects: The roller structure of this utility model includes a slidingly fitted first guide rail and a second guide rail. This guide rail mechanism has a relatively simple structure, occupies little space, is easy to set up and install, and helps to reduce product costs.

[0015] In one optional embodiment, the guide rail mechanism further includes a plurality of protrusions disposed at the contact positions of the first guide rail and the second guide rail.

[0016] Beneficial effects: The roller structure of this utility model, by setting several protrusions at the contact position of the first guide rail and the second guide rail, can reduce the contact area of ​​the first guide rail and the second guide rail, reduce the friction between the first guide rail and the second guide rail, and make the relative sliding between the first guide rail and the second guide rail smoother.

[0017] In one alternative embodiment, the top surface of the second bracket has a recess, and one of the first guide rail and the second guide rail is disposed in the recess.

[0018] Beneficial effects: The roller structure of this utility model has a recessed part on the top surface of the second support, and one of the first guide rail and the second guide rail is set in the recessed part, which can save vertical structural space, make the roller structure more compact, and optimize the overall product size.

[0019] In one optional embodiment, the lifting mechanism further includes a linkage assembly disposed at both ends of the first bracket, one end of the linkage assembly being connected to the first bracket and the other end being connected to the main body of the cleaning equipment.

[0020] Beneficial effects: The roller structure of this utility model has connecting rod assemblies at both ends of the first support, which makes the lifting and moving of the roller assembly relative to the main body of the cleaning equipment more stable and smooth.

[0021] In one alternative embodiment, the lifting drive assembly includes a lifting drive member, which includes at least two output ends, one of which is connected to the first bracket, and the other output ends drive the rollers of the roller assembly to rotate.

[0022] Beneficial effects: The roller structure of this utility model has a lifting drive component with at least two output ends, which can simultaneously drive the lifting and rotating movement of the roller assembly and the rotation of the roller, improve the integration of the structure, make the overall structure more compact, and save installation space.

[0023] Secondly, this utility model also provides a mopping system, including a clean water tank, a wastewater tank, and a roller structure as described above. The clean water tank is disposed above the first support, and the wastewater tank is disposed near the roller of the roller assembly.

[0024] Since the mopping system of this utility model includes the roller structure of this utility model and has the same beneficial effects as the roller structure, it will not be described in detail here.

[0025] Thirdly, this utility model also provides a cleaning device, including a main body and a roller structure or a mopping system as described above, wherein the roller structure or the mopping system is disposed on the main body.

[0026] Since the cleaning equipment of this utility model includes the roller structure or mopping system of this utility model and has the same beneficial effects as the roller structure or mopping system, it will not be described in detail here.

[0027] In one alternative implementation, the cleaning equipment is one of a sweeping robot, a mopping robot, a floor scrubbing robot, and a cleaning robot.

[0028] Beneficial effects: The cleaning equipment of this utility model can be one of sweeping machines, mopping machines, floor scrubbing machines and cleaning robots. The roller structure of this utility model has a wide range of applications. Attached Figure Description

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the overall structure of the roller of this utility model;

[0031] Figure 2 This is a schematic diagram of the roller assembly in the roller structure of this utility model;

[0032] Figure 3 This is a side view of the roller assembly in the roller structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the roller structure (roller assembly extended state) of this utility model;

[0034] Figure 5 This is a schematic diagram of the roller structure (roller assembly in retracted state) of this utility model;

[0035] Figure 6 This is a schematic diagram of the guide rail mechanism in the roller structure of this utility model;

[0036] Figure 7 This is a side view of the guide rail mechanism in the roller structure of this utility model;

[0037] Figure 8 This is a schematic diagram of the lifting mechanism (partial structure) in the drum structure of this utility model;

[0038] Figure 9 This is a schematic diagram of the overall mopping system of this utility model;

[0039] Figure 10 This is a cross-sectional view of the mopping system of this utility model;

[0040] Figure 11 This is an exploded view of the mopping system of this utility model;

[0041] Figure 12 This is a top view of the cleaning device of this utility model (with the roller assembly extended);

[0042] Figure 13 This is a top view of the cleaning equipment of this utility model (drum assembly in retracted state);

[0043] Figure 14 This is a side view of the cleaning equipment of this utility model (drum structure in the rising state);

[0044] Figure 15 This is a side view of the cleaning equipment of this utility model (drum structure in the lowered state);

[0045] Figure 16 This is an exploded view of the roller structure according to another embodiment of the present invention;

[0046] Figure 17 This is a schematic diagram of another embodiment of the roller structure (when the roller assembly is retracted into the first support).

[0047] Figure 18 This is a schematic diagram of another embodiment of the roller structure (when the roller assembly extends out of the first support) of the present invention;

[0048] Figure 19 This is a schematic diagram of the roller brush assembly in another embodiment of the roller brush structure from another angle;

[0049] Figure 20 This is an exploded view of the mounting box in the roller structure of another embodiment of the present invention;

[0050] Figure 21 This is a schematic diagram of the mounting box in a roller structure according to another embodiment of the present invention;

[0051] Figure 22 This is a schematic diagram of the force direction of a roller structure (when the roller assembly extends out of the first support) according to another embodiment of the present invention;

[0052] Figure 23This is a schematic diagram of the force direction of a roller structure (when the roller assembly retracts into the first support) according to another embodiment of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. First support;

[0055] 2. Roller assembly; 201. Second bracket; 202. Roller; 203. Sludge collection tank; 204. Second connector; 2041. First groove; 2042. Second groove; 205. Sludge scraper; 206. First connector; 207. Water inlet pipe of water circuit board; 208. Sludge suction pipe; 209. Water circuit board;

[0056] 3. Telescopic drive component; 301. Motor gear;

[0057] 4. Pulling components;

[0058] 5. First transmission component; 501. Shaft of the first transmission component;

[0059] 6. Protective cover;

[0060] 7. Second transmission component; 701. Second transmission component shaft; 702. First meshing part; 703. Second meshing part;

[0061] 8. Control components; 801. Control component shaft;

[0062] 9. Linkage assembly;

[0063] 1001. Extension / retraction positioning detection component; 1002. Extension / retraction positioning detection column;

[0064] 11. Sewage tank;

[0065] 12. Mounting box; 1201. First box section; 1202. Second box section; 1203. Third box section;

[0066] 13. Lifting and buffer components;

[0067] 14. Cam rod;

[0068] 15. Main body;

[0069] 1601. Lifting position detection component; 1602. Lifting position detection column;

[0070] 1701, First guide rail; 1702, Second guide rail; 1703, Bottom protrusion; 1704, Side protrusion; 1705, Top protrusion;

[0071] 18. Lifting drive components;

[0072] 19. Clean water tank;

[0073] 20. Gear system. Detailed Implementation

[0074] 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.

[0075] Currently, the roller assemblies of cleaning equipment are mostly fixedly installed at the bottom of the main body of the equipment, and the roller assemblies are placed within the projection range of the main body on the ground, with a certain distance between the outer edge of the roller assembly and the outer edge of the main body. When cleaning corner areas, such as along walls, the main body first comes into contact with the wall, and the roller assembly cannot get close to the wall for cleaning, resulting in long-term dust accumulation at the wall area and affecting the cleaning effect of the equipment. In addition, when the cleaning equipment needs to return to the base station to clean the rollers, the roller assembly to be cleaned will soil the already cleaned ground, causing secondary pollution and affecting the overall cleaning effect, resulting in a poor user experience.

[0076] Based on this, the present invention provides a roller structure, a mopping system, and a cleaning device.

[0077] The following is combined Figures 1-23 This describes embodiments of the roller structure, control system, and cleaning equipment of this utility model.

[0078] According to an embodiment of the present invention, in a first aspect, a roller structure is provided for use in cleaning equipment. The roller structure includes: a roller assembly 2, a lifting mechanism, a guide rail mechanism, and a telescopic mechanism. The lifting mechanism includes a first support 1 and a lifting drive assembly. The roller assembly 2 is disposed at the bottom of the first support 1, and the output end of the lifting drive assembly drives the first support 1 to move up and down. The guide rail mechanism is disposed between the first support 1 and the roller assembly 2, and the roller assembly 2 moves telescopically relative to the first support 1 through the guide rail mechanism. The telescopic mechanism is disposed on the first support 1 and includes a first control assembly and a second control assembly for applying a force to the roller assembly 2. When the force exerted by the second control assembly on the roller assembly 2 is less than the force exerted by the first control assembly on the roller assembly 2, the first control assembly drives the roller assembly 2 to extend relative to the first support 1. When the force exerted by the second control assembly on the roller assembly 2 is greater than the force exerted by the first control assembly on the roller assembly 2, the second control assembly drives the roller assembly 2 to retract relative to the first support 1.

[0079] This roller structure allows roller assembly 2 to extend and retract. When cleaning corners and edges, the force exerted by the second control component on roller assembly 2 is less than that by the first control component. The first control component then extends roller assembly 2 relative to the first support 1, allowing it to approach corners and edges more directly, achieving "edge cleaning" and significantly reducing blind spots. This greatly improves cleaning efficiency. When corner cleaning is no longer needed (i.e., when roller assembly 2 needs to return to its original position), the force exerted by the second control component on roller assembly 2 is greater than that by the first control component, causing it to retract relative to the first support 1. Through the coordinated operation of the first and second control components, the position of roller assembly 2 can be adjusted, making it more controllable and its extension and retraction smoother. This roller structure not only provides better cleaning results but also enhances the user experience. Furthermore, the guide rail mechanism installed between the first support 1 and the roller assembly 2 ensures smoother and more stable telescopic movement of the roller assembly 2 relative to the first support 1, improving the stability and reliability of the structure. In addition, the roller assembly 2 can also move up and down under the control of the lifting mechanism. When the cleaning equipment returns to the base station, the roller assembly 2 can rise without contacting the ground, thus avoiding secondary contamination of the cleaned ground, meeting user needs, and enhancing the user experience.

[0080] The roller structure can be applied to cleaning equipment such as sweepers, mops, scrubbers or cleaning robots. The cleaning equipment has a main body 15, and the roller structure is set at the bottom of the main body 15.

[0081] The first support 1 has a certain structural strength, capable of supporting and mounting the roller assembly 2, guide rail mechanism, and telescopic mechanism. Typically, the first support 1 is made of waterproof, corrosion-resistant, and high-strength materials to ensure the overall service life of the roller structure. The first support 1 has a generally elongated strip-like structure. Figure 1 Taking a specific perspective, the bottom of the first support 1 faces the surface to be cleaned. Depending on the application scenario of different cleaning equipment, the surface to be cleaned can be the ground, a wall, etc. In this embodiment, the surface to be cleaned is the ground.

[0082] The roller assembly 2 is telescopically and movably mounted on the first support 1. The roller assembly 2 is primarily used for cleaning the surface to be cleaned. During operation, the roller assembly 2 directly contacts the surface to be cleaned, thus completing the cleaning process. The roller assembly 2 is located at the bottom of the first support 1 and can telescopically move relative to the first support 1; that is, the position of the roller assembly 2 relative to the first support 1 is not fixed and can change. The roller assembly 2 can extend relative to the first support 1. When the roller assembly 2 extends to a preset extended position (fully extended), it is in the extended state. Correspondingly, the roller assembly 2 can retract relative to the first support 1. When the roller assembly 2 retracts to a preset retracted position (fully retracted), it is in the retracted state. In other words, the roller assembly 2 can reciprocate between the corresponding positions of the extended and retracted states; that is, the roller assembly 2 can move from the retracted position to the extended position, and vice versa.

[0083] like Figures 2-3 As shown, the roller assembly 2 has a roughly elongated structure and includes a second support 201, a roller 202, a dirt collection tank 203, and a water channel plate 209. The second support 201, also called a telescopic support, is the shell structure of the roller assembly 2. The second support 201 is telescopically connected to the first support 1 and has sufficient structural strength to support and house structural components such as the roller 202, dirt collection tank 203, and water channel plate 209. The roller 202 is housed within the second support 201 and serves as the roller mop. In this embodiment, the roller structure is a double-roller structure, meaning there are two rollers 202. The roller 202 is positioned on the side of the second support 201 facing the surface to be cleaned. During operation, the roller 202 can roll to clean the surface. A sludge collection tank 203 is positioned between two rollers 202. A scraper 205 is installed above the sludge collection tank 203, with both ends of the scraper 205 contacting the two rollers 202 to scrape off debris and wastewater from the outer walls of the rollers 202. This debris and wastewater fall into the sludge collection tank 203 for collection and subsequent cleaning by the user. A water inlet pipe 209 is positioned above the scraper 205. A water inlet pipe 207 and a sludge suction pipe 208 are also installed on the top of the roller support 2012. The water inlet pipe 207 can be connected to the water inlet pipe 209 of the cleaning equipment, and the sludge suction pipe 208 is connected to the sludge collection tank 203 to facilitate the discharge of debris and wastewater from the sludge collection tank 203.

[0084] The water channel plate 209, the scraper 205, the sludge collection tank 203, and the roller 202 all extend and retract together with the second bracket 201 to avoid situations where only the roller 202 extends and retracts, but the water from the water channel plate 209 remains in place and flows directly to the ground without reaching the roller 202, or the scraper 205 and the sludge collection tank 203 remain in place and do not scrape the sewage on the roller 202, which would greatly reduce the cleaning effect.

[0085] The second support 201 is also provided with a first connector 206, through which the first control component is connected to the roller assembly 2. The second support 201 is also provided with a second connector 204, through which the second control component is connected to the roller assembly 2. Of course, the roller assembly 2 also has other structures and components that are common to existing roller assemblies, which will not be described in detail here.

[0086] In this embodiment, the first connector 206 and the second connector 204 are located on both sides of the roller assembly 2, so that the structural arrangement on the roller assembly 2 is more balanced, and the extension and retraction movement of the roller assembly 2 is more stable when the first control component and the second control component apply force to the roller assembly 2.

[0087] The guide rail mechanism is located between the first support 1 and the roller assembly 2. Under the guidance of the guide rail mechanism, the roller assembly 2 can move telescopically relative to the first support 1 along the guide rail mechanism, so that the telescopic movement of the roller assembly 2 is more smooth and stable.

[0088] A telescopic mechanism is mounted on the first support 1 and is used to control the telescopic movement of the roller assembly 2. The telescopic mechanism includes a first control component and a second control component, both of which can apply force to the roller assembly 2 to achieve its telescopic movement. When the force exerted by the second control component on the roller assembly 2 is less than the force exerted by the first control component, the first control component causes the roller assembly 2 to extend relative to the first support 1. When the force exerted by the second control component on the roller assembly 2 is greater than the force exerted by the first control component, the second control component causes the roller assembly 2 to retract relative to the first support 1.

[0089] In other words, by adjusting the force exerted on the roller assembly 2 by the first control component and the second control component, the roller assembly 2 can be moved to the extended position under the control of the first control component, and the roller assembly 2 can also be moved to the retracted position under the control of the second control component.

[0090] Specifically, the roller assembly 2 is telescopically and movably disposed on the side of the first bracket 1 facing the surface to be cleaned. The first control component drives the roller assembly 2 to extend out of the projection range of the first bracket 1 on the surface to be cleaned, and the second control component drives the roller assembly 2 to retract into the projection range of the first bracket 1 on the surface to be cleaned.

[0091] In this embodiment, the bottom of the first support 1 faces the surface to be cleaned, and the roller assembly 2 is telescopically and movably disposed at the bottom of the first support 1. The surface to be cleaned is the ground. In the retracted state, the entire roller assembly 2 is within the projection range of the first support 1 on the ground. The first control component can drive the roller assembly 2 to extend beyond this projection range, and the second control component can drive the roller assembly 2 to retract into this projection range. That is, when the roller assembly 2 is in the retracted state, it is not visible from the top view of the first support 1. When the roller assembly 2 is in the extended state, at least a portion of its structure is outside the first support 1. This roller structure is suitable for cleaning equipment such as sweepers, which simplifies structural design, reduces control difficulty, and facilitates maintenance, replacement, and storage. In this embodiment, when the roller assembly 2 is in the retracted state, the outer edge of the roller assembly 2 is flush with the outer edge of the first support 1.

[0092] The first control component includes a control element 8, which is disposed on the first support 1. The control element 8 applies a pulling or pushing force to the roller assembly 2 in the extension direction of the roller assembly 2.

[0093] Depending on different design requirements, the control component 8 can apply a pulling force or a pushing force to the roller assembly 2 along the extension direction of the roller assembly 2. As long as the control component 8 can drive the roller assembly 2 to extend relative to the first support 1, the design is highly flexible.

[0094] In this embodiment, the control member 8 applies a pulling force to the roller assembly 2 in the extension direction. The control member 8 is disposed on the first bracket 1 and has a force-applying end, which is connected to the roller assembly 2. The control member 8 applies a pulling force to the roller assembly 2 through the force-applying end.

[0095] The second control component includes a telescopic drive component 3 and a traction component 4. The telescopic drive component 3 is disposed on the first support 1. One end of the traction component 4 is driven by the telescopic drive component 3, and the other end of the traction component 4 is connected to the roller assembly 2. The telescopic drive component 3 is specifically a drive motor.

[0096] Specifically, the pulling member 4 is U-shaped and mounted on the first support 1 to fully utilize the space on the first support 1. The pulling member 4 is made of steel wire rope, wound around a winding reel. One end of the pulling member 4 is connected to the output end of the telescopic drive member 3, and the other end is connected to the second connecting member 204. The telescopic drive member 3 provides power so that the second control component can apply force to the roller assembly 2. One end of the pulling member 4 is driven by the telescopic drive member 3, and the other end is connected to the roller assembly 2. The pulling member 4 pulls the roller assembly 2 and, by overcoming the force exerted on the roller assembly 2 by the first control component, causes the roller assembly 2 to retract relative to the first support 1.

[0097] like Figures 4-5 As shown, Figure 4 The middle arrow 'a' indicates the direction of extension. Figure 5 The middle arrow b indicates the retraction direction. In this embodiment, the control element 8 is an elastic element. When the roller assembly 2 retracts relative to the first support 1, the control element 8 is in a stretched state. Specifically, the control element 8 is a tension spring. When the telescopic drive element 3 is not working, the roller assembly 2 will remain in its normally extended state under the force of the tension spring.

[0098] One end of the control element 8 is connected to the first support 1, and the other end is connected to the roller assembly 2 via the first connector 206. When the roller assembly 2 retracts relative to the first support 1, the control element 8 is in a stretched state, and the control element 8 can apply a pulling force to the roller assembly 2 in the extension direction. When the pulling member 4 is released, under the pulling force of the control element 8, the roller assembly 2 extends relative to the first support 1 until it reaches the preset extension position. The tension force of the tension spring on the roller assembly 2 varies. When the roller assembly 2 moves toward the preset retracted position, the tension force of the tension spring on the roller assembly 2 gradually increases, while when the roller assembly 2 moves toward the preset extension position, the tension force of the tension spring on the roller assembly 2 gradually decreases, but it is necessary to keep the roller assembly 2 in the preset extension position.

[0099] The telescopic structure also includes a telescopic positioning detection element 1001 and a telescopic positioning detection column 1002. When the telescopic positioning detection column 1002 contacts the telescopic positioning detection element 1001, the roller assembly 2 retracts into place.

[0100] When the cleaning equipment detects a carpet or is near a base station, the lifting mechanism raises the roller assembly 2 to avoid contact with the ground. Specifically, under the control of the lifting mechanism, the first support 1 can also move the roller assembly 2 relative to the main body 15. When the roller assembly 2 rises, it maintains a certain distance from the ground and does not contact the ground. When the roller assembly descends, it contacts the ground and can then perform cleaning work.

[0101] The lifting mechanism includes a first support 1, a lifting drive component 18, a gear system 20, etc. The first support 1 is also called a lifting support. The lifting drive component 18 is specifically a drive motor, which includes at least two output ends. One output end drives the first support 1 to move up and down. Specifically, this output end is connected to the first support 1. The other output ends drive the two rollers 202 of the roller assembly 2 to rotate. Therefore, the lifting drive component 18 is also a roller drive component. In this embodiment, the lifting drive component 18 includes three output ends.

[0102] like Figure 8As shown, the lifting drive 18 is connected to the cam rod 14 and two rollers 202 via a gear train 20. The gear train 20 is provided with three output ends that connect the cam rod 14 and the two rollers 202. The output end of the cam rod 14 is provided with a one-way bearing.

[0103] When the lifting drive 18 rotates forward, it drives the two rollers 202 to rotate in the forward direction. At this time, the one-way bearing works in the forward direction, and the output end of the cam rod 14 rotates relative to the cam rod 14. The driving force of the lifting drive 18 is not transmitted to the cam rod 14, and the rollers 202 are in a natural descending state.

[0104] When it is necessary to lift the roller 202, the lifting drive 18 reverses and drives the two rollers 202 to rotate in opposite directions. At this time, the one-way bearing rotates in opposite directions, and the output end of the cam rod 14 is stationary relative to the cam rod 14. The output end of the cam rod 14 drives the cam rod 14 to rotate, and the cam rod 14 drives the roller 202 to rise during the rotation.

[0105] like Figure 4 As shown, the lifting mechanism also includes a lifting position detection element 1601 and a lifting position detection column 1602. When the lifting position detection column 1602 rises with the roller assembly 2 and triggers the lifting position detection element 1601, the lifting drive element 18 is de-energized. Due to the self-locking force of the lifting drive element 18, the roller 202 remains in the raised state. In this embodiment, the lifting position detection element 1601 is a photoelectric switch.

[0106] Furthermore, a lifting buffer 13 is provided on the upper surface of the first support 1. The lifting buffer 13 can be made of materials with elastic cushioning function such as rubber pads. When the roller assembly 2 rises, the lifting buffer 13 can contact the main body 15 of the cleaning equipment and form a buffer with the main body 15 to avoid collision noise, while protecting the structure of the roller assembly 2.

[0107] Furthermore, the guide rail mechanism is located between the first bracket 1 and the second bracket 201.

[0108] The extension direction of the guide rail mechanism is consistent with the extension and retraction direction of the roller assembly 2. The guide rail mechanism is set between the first support 1 and the second support 201, which can save the installation space, make the overall structure more compact and reasonable, and at the same time enable the roller assembly 2 to move more stably relative to the first support 1.

[0109] In this embodiment, the guide rail mechanism includes a first guide rail 1701 and a second guide rail 1702 that slide together. One of the first guide rail 1701 and the second guide rail 1702 is disposed on the bottom surface of the first bracket 1, and the other is disposed on the top surface of the second bracket 201. The first guide rail 1701 is made of aluminum alloy, and the second guide rail 1702 is made of POM (Polyoxymethylene). This material has self-lubricating properties, which makes the sliding process of the second guide rail 1702 relative to the first guide rail 1701 less frictional and smoother.

[0110] like Figures 6-7 As shown, the first guide rail 1701 is a semi-enclosed guide rail, and the second guide rail 1702 is disposed within the first guide rail 1701, and the first guide rail 1701 and the second guide rail 1702 can slide relative to each other. One of the first guide rail 1701 and the second guide rail 1702 is disposed on the bottom surface of the first bracket 1, and the other is disposed on the top surface of the second bracket 201. In this embodiment, the first guide rail 1701 is disposed on the bottom surface of the first bracket 1, and the second guide rail 1702 is disposed on the top surface of the second bracket 201.

[0111] In other embodiments, depending on different setup requirements, the first guide rail 1701 may be disposed on the top surface of the second bracket 201, while the second guide rail 1702 may be disposed on the bottom surface of the first bracket 1.

[0112] Furthermore, the guide rail mechanism also includes several protrusions disposed at the contact positions of the first guide rail 1701 and the second guide rail 1702. By providing several protrusions at the contact positions of the first guide rail 1701 and the second guide rail 1702, the contact area between the first guide rail 1701 and the second guide rail 1702 can be reduced, the friction between the first guide rail 1701 and the second guide rail 1702 can be reduced, and the relative sliding between the first guide rail 1701 and the second guide rail 1702 can be made smoother.

[0113] In this embodiment, the protrusions include a bottom protrusion 1703, a side protrusion 1704, and a top protrusion 1705. The bottom protrusion 1703 is disposed at the bottom of the second guide rail 1702 and in contact with the first guide rail 1701. Multiple bottom protrusions 1703 are provided, spaced apart along the length of the second guide rail 1702. The side protrusions 1704 are disposed on the two sidewalls of the second guide rail 1702, and are arranged along the length of the second guide rail 1702. The top protrusion 1705 is disposed at the top of the two sidewalls of the second guide rail 1702, and is arranged along the length of the second guide rail 1702.

[0114] Furthermore, the top surface of the second bracket 201 has a recess 2011, and one of the first guide rail 1701 and the second guide rail 1702 is disposed in the recess.

[0115] like Figure 2 As shown, the roller assembly 2 includes two rollers 202. Between the two rollers 202, the top surface of the second support 201 has a recessed structure, i.e., a recessed portion. One of the first guide rail 1701 and the second guide rail 1702 is disposed in the recessed portion, which saves vertical space and makes the overall roller structure more compact, thus optimizing the overall product size. In this embodiment, the second guide rail 1702 is disposed in the recessed portion.

[0116] Furthermore, the lifting mechanism also includes a linkage assembly 9, which is disposed at both ends of the first support 1. One end of the linkage assembly 9 is connected to the first support 1, and the other end is connected to the main body of the cleaning equipment.

[0117] like Figure 9 As shown, connecting rod assemblies 9 are provided at both ends of the first support 1. The connecting rod assemblies 9 enable the roller assembly 2 to move more smoothly and stably relative to the main body 15 of the cleaning equipment. In this embodiment, the connecting rod assembly 9 is a four-bar assembly with a parallelogram structure, which makes the lifting and lowering movement of the roller assembly 2 more stable and ensures that the roller assembly 2 moves vertically.

[0118] like Figures 10-11 As shown, this embodiment also provides a mopping system, including a clean water tank 19, a waste water tank 11, and a roller structure as described above. The clean water tank 19 is disposed above the first support 1, and the waste water tank 11 is disposed near the roller 202 of the roller assembly 2.

[0119] The entire mopping system is located at the rear of the cleaning equipment and below the main body 15. From top to bottom, the mopping system consists of a clean water tank 19, a first support 1, a guide rail mechanism, a second support 201, a water circuit board 209, a scraper 205, and a dirt collection tank 203. Rollers 202 are located on both sides of the dirt collection tank 203. The wastewater tank 11 is located behind the roller assembly 2. Water in the clean water tank 19 is connected to the water inlet pipe 207 of the water circuit board via a water pump and other components. Water then flows evenly onto the rollers 202 through the water circuit board 209. The scraper 205 scrapes and washes the rollers 202, and the scraped wastewater is collected by the dirt collection tank 203. The wastewater in the dirt collection tank 203 flows through the suction pipe 208 to the wastewater tank 11 of the entire machine for subsequent centralized cleaning by the user.

[0120] like Figures 12-15 As shown, this embodiment also provides a cleaning device, including a main body 15 and a roller structure or a mopping system as described above, wherein the roller structure or mopping system is disposed on the main body 15.

[0121] When cleaning corner areas such as walls, the force exerted by the second control component on the roller assembly 2 is less than that exerted by the first control component. The first control component causes the roller assembly 2 to extend relative to the first support 1, allowing it to be closer to the corner area without being affected by the position of the first support 1, achieving "edge cleaning." This effectively cleans corner areas, significantly reducing blind spots and greatly improving cleaning performance. When corner cleaning is no longer needed (i.e., when the roller assembly 2 needs to return to its original position), the force exerted by the second control component on the roller assembly 2 is greater than that exerted by the first control component, causing the roller assembly 2 to retract relative to the first support 1. Through the coordinated operation of the first and second control components, the position of the roller assembly 2 can be adjusted, making it more controllable and its extension and retraction smoother. This roller structure not only provides better cleaning results but also enhances the user experience.

[0122] When the cleaning equipment needs to return to the base station for cleaning, the lifting mechanism can control the roller assembly 2 to rise upwards. The roller assembly 2 is spaced apart from the ground to avoid the uncleaned roller assembly 2 from soiling the cleaned ground, and can also avoid items that do not need to be cleaned, such as carpets. When the roller assembly 2 needs to start cleaning, the lifting mechanism controls the roller assembly 2 to fall down, and the roller assembly 2 contacts the ground to clean the ground.

[0123] Of course, cleaning equipment also has other structural components that are present in all existing cleaning equipment, which will not be elaborated here.

[0124] 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.

[0125] The working process of the cleaning equipment in this embodiment will be described below with reference to the accompanying drawings:

[0126] When the cleaning equipment starts cleaning, it first cleans the edges of the area it is assigned to and then cleans the interior of the area in a bow-shaped pattern. When the telescopic drive 3 rotates forward, it retracts the pull member 4, pulling the second bracket 201 to overcome the tension of the tension spring. When the telescopic positioning detection post 1002 on the second bracket 201 triggers the signal of the telescopic positioning detection device 1001, the telescopic drive 3 stops working. Because the motor itself has a self-locking force, the pull member 4 remains in a tightened state, and the second bracket 201 remains in a retracted state, thus performing cleaning. This is suitable for cleaning the interior area of ​​the entire machine (not cleaning along the edges).

[0127] When the machine is cleaning along the edge, the telescopic drive 3 is reversed for a certain period of time T1. T1 should be less than the time required for the winding wheel to rotate in the opposite direction to prevent the pulling member 4 from being wound backwards onto the winding wheel after release. The purpose of reversing is to unlock the pulling member 4. During reversal, the telescopic drive 3 loses its locking force on the pulling member 4, and under the force of the tension spring, the second bracket 201 will return to the extended state. This state is suitable for cleaning dead corners such as walls and corners of tables and chairs. When the machine detects an obstacle in front that will hit the roller 202 or returns to the base station, the lifting drive 18 can raise the second bracket 201 to avoid collision or secondary contamination of the cleaned ground.

[0128] like Figures 16-23 As shown, this is another embodiment of the roller brush structure of the present invention. The difference between this embodiment and the previous embodiment is that the structure of the telescopic mechanism is different and the setting position of the second connecting member 204 is different. The second connecting member 204 serves as both the connecting end of the pulling member and the connecting end of the control member.

[0129] like Figure 20 As shown, a mounting box 12 is provided on the first bracket 1. The mounting box 12 has an internal mounting space, and part of the telescopic mechanism is disposed within the mounting box 12. The mounting box 12 can be opened and closed to protect the mechanism disposed therewith. The mounting box 12 is formed by a first box body portion 1201, a second box body portion 1202, and a third box body portion 1203, forming the internal mounting space. In this embodiment, the mounting box 12 is disposed near the end of the first bracket 1 and near the protruding end of the roller assembly 2 to facilitate structural arrangement.

[0130] Furthermore, the control component 8 continuously applies a pulling force along the extension direction to the roller assembly 2. That is, the pulling force of the control component 8 on the roller assembly 2 is uniform regardless of its position. When the roller assembly 2 needs to retract into the first support 1, the second control component needs to overcome the pulling force of the control component 8 on the roller assembly 2 (the force exerted by the second control component on the roller assembly 2 is greater than that exerted by the first control component on the roller assembly 2), driving the roller assembly 2 to move along the retraction direction. When the roller assembly 2 needs to extend out of the first support 1, it is sufficient for the force exerted by the second control component on the roller assembly 2 to disappear or for the force exerted by the second control component on the roller assembly 2 to be less than the pulling force exerted by the control component 8 on the roller assembly 2. By continuously applying a pulling force to the roller assembly 2 through the control component 8, the movement process of the roller assembly 2 (especially the retraction process) can be made smoother, reducing the possibility of a very rapid retraction process due to the disappearance or reduction of the force of the first control component, which could cause structural impact and thus reduce the noise between structures.

[0131] Specifically, such as Figure 20As shown, the control element 8 is disposed within the mounting box 12 and mounted on the first bracket 1 via the mounting box 12. The control element 8 is a coil spring and has a control element shaft 801, which is fixed to the inner wall of the mounting box 12. The force-applying end of the control element 8 extends toward the roller assembly 2 and is connected to the roller assembly 2. In this embodiment, the axial direction of the control element shaft 801 is perpendicular to the extension direction of the roller assembly 2.

[0132] The roller assembly 2 includes a second connector 204. One end of the second connector 204 is connected to the tensioning member 4, and the other end is connected to the control member 8. The forces exerted by the first control component and the second control component on the roller assembly 2 are applied to the second connector 204. When the force exerted by the second control component on the second connector 204 is less than the force exerted by the first control component on the second connector 204, the first control component drives the roller assembly 2 to extend relative to the first support 1 through the second connector 204. When the force exerted by the second control component on the second connector 204 is greater than the force exerted by the first control component on the second connector 204, the second control component drives the roller assembly 2 to retract relative to the first support 1 through the second connector 204. Because the roller assembly 2 is provided with the second connector 204, the first control component, the second control component, and the roller assembly 2 are connected through the second connector 204, so that the first control component and the second control component can apply forces to the roller assembly 2.

[0133] like Figure 19 As shown, the second connector 204 on the second bracket 201 has a first groove 2041 and a second groove 2042 formed thereon. The first groove 2041 and the second groove 2042 are arranged opposite to each other, and the openings of the first groove 2041 and the second groove 2042 face opposite directions. The force-applying end of the control member 8 extends toward the second connector 204, and the force-applying end is adapted to be embedded and fixed in the first groove 2041, so that the force-applying end of the control member 8 is connected to the roller assembly 2. The coil spring can continuously apply tension to the roller assembly 2, and part of the coil spring structure can extend or enter the mounting box 12 as the position of the roller assembly 2 changes.

[0134] Furthermore, when the roller assembly 2 is in the extended state, if the cleaning equipment encounters an obstacle, and the external force exerted by the obstacle on the roller assembly 2 (the thrust along the retraction direction) can overcome the pulling force of the control element 8 on the roller assembly 2, the roller assembly 2 can retract the first support 1 under the action of the external force to achieve automatic obstacle avoidance.

[0135] Furthermore, the second control component includes a first transmission member 5, with the portion of the pulling member 4 away from the roller assembly 2 wound around the first transmission member 5. A telescopic drive member 3 drives the first transmission member 5 to rotate, releasing or winding the pulling member 4. By winding the portion of the pulling member 4 away from the roller assembly 2 around the first transmission member 5, space is saved, resulting in a compact structural design. Under the driving action of the telescopic drive member 3, the first transmission member 5 rotates, releasing or winding the pulling member 4, allowing it to extend or shorten, thus realizing the retraction process of the roller assembly 2. Simultaneously, when the first transmission member 5 rotates and the pulling member 4 is released, it assists (without hindering) the extension process of the roller assembly 2. For example, during the extension process of the roller assembly 2, the telescopic drive member 3 drives the pulling member 4 to extend, preventing the length of the pulling member 4 from restricting the extension of the roller assembly 2.

[0136] Furthermore, the second control component also includes a second transmission component 7, which meshes with the output shaft of the telescopic drive component 3, and also meshes with the first transmission component 5. This structural meshing method achieves the transmission of driving force, which is simple, efficient, easy to set up, and helps save installation space.

[0137] The telescopic drive 3 uses a motor and has an output shaft with motor teeth 301 (or worm gear) on it. The axial direction of the output shaft of the telescopic drive 3 is parallel to the axial direction of the control component 8.

[0138] The second transmission component 7 is disposed inside the mounting box 12. The axial direction of the second transmission component 7 is perpendicular to the axial direction of the telescopic drive component 3 and is not in the same plane. The second transmission component 7 adopts a two-stage gear. The second transmission component 7 includes a second transmission component shaft 701, a first meshing part 702 and a second meshing part 703. The second transmission component shaft 701 is connected to the inner wall of the mounting box 12. The first meshing part 702 and the second meshing part 703 are arranged sequentially along the axial direction of the second transmission component shaft 701. The first meshing part 702 meshes with the motor gear 301, and the second meshing part 703 meshes with the first transmission component 5.

[0139] The first transmission member 5 is disposed inside the mounting box 12. The first transmission member 5 adopts a take-up tooth and includes a first transmission member shaft 501, which is connected to the inner wall of the mounting box 12. The meshing part of the first transmission member 5 meshes with the second meshing part 703. The pulling member 4 is wound around the first transmission member 5. When the first transmission member 5 rotates in the forward direction, the pulling member 4 is released and its extended part will lengthen. When the first transmission member 5 rotates in the reverse direction, the pulling member 4 is wound and its extended part will shorten, thereby driving the roller assembly 2 to retract relative to the first support 1.

[0140] The pulling member 4 is made of steel wire and is wound around the first transmission member 5. One end of the pulling member 4 is connected to the roller assembly 2. Specifically, the end of the pulling member 4 near the roller assembly 2 can be embedded and fixed in the second groove 2042 to realize the connection between the pulling member 4 and the roller assembly 2.

[0141] Furthermore, the second control component also includes a protective sleeve 6, which is disposed on the first bracket 1, and the traction member 4 passes through the protective sleeve 6.

[0142] The protective sleeve 6 has space suitable for the insertion and movement of the pulling member 4. The protective sleeve 6 protects the pulling member 4 and guides its extension direction. In this embodiment, the protective sleeve 6 is made of rubber. A portion of the protective sleeve 6 is bent towards the roller assembly 2 to facilitate the connection between the pulling member 4 and the roller assembly 2. In this embodiment, the bending angle is 180°. One end of the pulling member 4 protruding from the protective sleeve 6 connects to the second groove 2042. Furthermore, in this embodiment, except for the bent portion of the protective sleeve 6, the remaining portion of the protective sleeve 6 is parallel to the protruding portion of the control member 8 and is parallel to both the extension and retraction directions of the roller assembly 2. This structural arrangement allows for a compact design, reduces space occupation, and ensures that the force exerted by the control member 8 and the pulling member 4 on the roller assembly 2 is efficient and stable.

[0143] Furthermore, the roller structure also includes a telescopic buffer, which is disposed at the position where the roller assembly 2 contacts the first support 1 when the roller assembly 2 extends and / or retracts relative to the first support 1.

[0144] To reduce collisions between the first support 1 and the second support 201 when the roller assembly 2 is about to reach the preset extended position and the preset retracted position, a telescopic buffer is provided at the contact point between the first support 1 and the second support 201. The telescopic buffer can be made of materials with elastic cushioning function, such as rubber pads. The telescopic buffer can decelerate the roller assembly 2 to its final position, thereby preventing violent collisions between the first support 1 and the second support 201, and at the same time reducing structural noise.

[0145] The roller brush structure also includes a first telescopic position detection element and a second telescopic position detection element. The first telescopic position detection element is disposed on the first support 1 of the roller structure and is used to detect whether the roller assembly 2 of the roller structure extends to a preset extended position relative to the first support 1. The second telescopic position detection element is disposed on the first support 1 and is used to detect whether the roller assembly 2 retracts to a preset retracted position relative to the first support 1. The signal input terminal of the control element in the cleaning equipment is electrically connected to the signal output terminal of the first telescopic position detection element 10 and the signal output terminal of the second telescopic position detection element. The signal output terminal of the control element is electrically connected to the signal input terminal of the telescopic drive element 3 of the second control component in the roller assembly.

[0146] Both the first telescopic position detection element 10 and the second telescopic position detection element can be optocouplers. During the extension of the roller assembly 2 from the first support 1, when the detection beam of the first telescopic position detection element 10 is blocked by the roller assembly 2, it indicates that the roller assembly 2 has reached the preset extension position. During the retraction of the roller assembly 2 from the first support 1, when the detection beam of the second telescopic position detection element is blocked by the roller assembly 2, it indicates that the roller assembly 2 has reached the preset retraction position. These optocouplers offer high detection accuracy, are not easily damaged, and have a long service life. When the control element detects that the roller assembly 2 has reached the preset extension position or the preset retraction position, the control element will control the telescopic drive element 3 to stop working, and the pulling element 4 will no longer extend or retract.

[0147] The aforementioned control system makes the control process of cleaning equipment more intelligent, giving users greater control over the equipment and a better user experience.

[0148] The extension and retraction process of the cleaning equipment in this embodiment will be described in detail below with reference to the accompanying drawings:

[0149] When the cleaning equipment starts working, if it is necessary to clean the corner areas, the user controls the telescopic drive 3 to start, the motor gear 301 drives the second transmission component 7 to rotate, which in turn drives the first transmission component 5 to rotate. Figure 22 (Rotating counterclockwise), the pulling member 4 releases its extension. At this time, the pulling member 4 is in a free state. As the control member 8 continuously applies tension to the roller assembly 2, the roller assembly 2 will extend out of the first support 1 ( Figure 22 (Move from center to left) until the first telescopic position detection component detects that the roller assembly 2 has reached the preset extension position, the telescopic drive component 3 stops working, and at the same time the telescopic buffer component will buffer the roller assembly 2. The second bracket 201 abuts against the first bracket 1 through the telescopic buffer component, so that the roller assembly 2 stops moving. At this time, the cleaning equipment can clean the corner area.

[0150] When the cleaning equipment encounters an obstacle, if the obstacle applies an external force to the roller assembly 2, the magnitude of the external force is usually in the range of (0, 10N). When the external force can overcome (or exceed) the pulling force of the control component 8 on the roller assembly 2 (the external force is greater than the spring force), the roller assembly 2 retracts into the first bracket 1 under the pushing action of the external force (at this time, the roller assembly 2 may not necessarily retract into the whole position). When the cleaning equipment leaves the obstacle, the roller assembly 2 returns to the preset extended position under the pulling action of the control component 8 and continues to perform cleaning work.

[0151] When the roller assembly 2 needs to be reset, that is, when cleaning of the corner areas is not required and the roller assembly 2 needs to be stored, such as Figure 23 As shown, the telescopic drive component 3 reverses, the motor gear 301 drives the second transmission component 7 to reverse, which in turn drives the first transmission component 5 to reverse. Figure 23 (Rotating clockwise), the pulling member 4 is pulled back and shortened, and the right side of the roller assembly 2 is subjected to tension until it overcomes the tension of the control member 8, causing the roller assembly 2 to move in the retraction direction. Figure 23 (Move from center to right) until the second telescopic position detector detects that the roller assembly 2 has reached the preset retracted position, the telescopic drive 3 stops working, and at the same time the telescopic buffer will buffer the roller assembly 2. The second bracket 201 abuts against the first bracket 1 through the telescopic buffer, the roller assembly 2 stops moving, and the roller assembly 2 is reset.

[0152] 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 structure, characterized in that, The roller structure, used in cleaning equipment, includes: Roller assembly (2); The lifting mechanism includes a first support (1) and a lifting drive assembly. The roller assembly (2) is disposed at the bottom of the first support (1). The output end of the lifting drive assembly drives the first support (1) to move up and down. A guide rail mechanism is disposed between the first bracket (1) and the roller assembly (2), and the roller assembly (2) moves telescopically relative to the first bracket (1) through the guide rail mechanism; A telescopic mechanism is provided on the first support (1). The telescopic mechanism includes a first control component and a second control component for applying force to the roller assembly (2). When the force of the second control component on the roller assembly (2) is less than the force of the first control component on the roller assembly (2), the first control component drives the roller assembly (2) to extend relative to the first support (1). When the force of the second control component on the roller assembly (2) is greater than the force of the first control component on the roller assembly (2), the second control component drives the roller assembly (2) to retract relative to the first support (1).

2. The roller structure according to claim 1, characterized in that, The roller assembly (2) includes a second bracket (201), and the guide rail mechanism is disposed between the first bracket (1) and the second bracket (201).

3. The roller structure according to claim 2, characterized in that, The guide rail mechanism includes a first guide rail (1701) and a second guide rail (1702) that are slidably engaged. One of the first guide rail (1701) and the second guide rail (1702) is disposed on the bottom surface of the first bracket (1), and the other is disposed on the top surface of the second bracket (201).

4. The roller structure according to claim 3, characterized in that, The guide rail mechanism also includes several protrusions, which are disposed at the contact positions of the first guide rail (1701) and the second guide rail (1702).

5. The roller structure according to claim 3, characterized in that, The top surface of the second bracket (201) has a recess, and one of the first guide rail (1701) and the second guide rail (1702) is disposed in the recess.

6. The roller structure according to claim 3, characterized in that, The lifting mechanism also includes a linkage assembly (9), which is disposed at both ends of the first bracket (1). One end of the linkage assembly (9) is connected to the first bracket (1), and the other end is connected to the main body (15) of the cleaning equipment.

7. The roller structure according to any one of claims 1-6, characterized in that, The lifting drive assembly includes a lifting drive component (18), which includes at least two output ends, one of which is connected to the first bracket (1), and the other output ends drive the roller (202) of the roller assembly (2) to rotate.

8. A mopping system, characterized in that, It includes a clean water tank (19), a wastewater tank (11), and a roller structure as described in any one of claims 1-7, wherein the clean water tank (19) is disposed above the first support (1), and the wastewater tank (11) is disposed near the roller (202) of the roller assembly (2).

9. A cleaning device, characterized in that, It includes a main body (15) and a roller structure as described in any one of claims 1-7 or a mopping system as described in claim 8, wherein the roller structure or the mopping system is disposed on the main body (15).

10. The cleaning equipment according to claim 9, characterized in that, The cleaning equipment is one of the following: sweeping machine, mopping machine, floor scrubbing machine, and cleaning robot.

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