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 guide rail mechanism and a telescopic mechanism. The guide rail mechanism is arranged between the first support and the roller assembly, and 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, the first control assembly is arranged on the guide rail mechanism, and when the acting force of the second control assembly on the roller assembly is smaller than that of the first control assembly on 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 applied to a cleaning device, the cleaning device including a first support, the roller structure being retractably disposed at the bottom of the first support, the roller structure comprising:

[0006] Roller assembly;

[0007] 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;

[0008] The telescopic mechanism includes a first control component and a second control component for applying a force to the roller assembly. The first control component is disposed on the guide rail mechanism, and the second control component is disposed on the first bracket. 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 bracket. 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 bracket.

[0009] Beneficial Effects: The roller structure of this utility model includes a roller assembly, 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 of the roller assembly smoother. This roller structure not only has a better cleaning effect but also a better user experience. In addition, the guide rail mechanism set between the first support and the roller assembly ensures smoother and more stable telescopic movement of the roller assembly, improving the stability and reliability of the structure. In addition, the first control component is located on the guide rail mechanism, which makes the roller structure simpler and more compact, with a smaller overall volume and less space occupied, which is conducive to further optimization of product size.

[0010] In one alternative implementation, the first control component is disposed inside the guide rail mechanism.

[0011] Beneficial effects: The roller structure of this utility model integrates the first control component into the guide rail mechanism, making full use of the internal space of the guide rail mechanism, making the overall structure more compact and reasonable, further saving installation space, and facilitating the layout of other structures.

[0012] In one optional embodiment, the guide rail mechanism includes a first guide rail and a second guide rail that slide together, one of the first guide rail and the second guide rail being disposed on the bottom surface of the first bracket, and the other being disposed on the top surface of the roller assembly.

[0013] 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.

[0014] In one alternative embodiment, the first control component includes a control member, one end of which is connected to the first guide rail and the other end of which is connected to the second guide rail. The control member applies a pulling force to the roller assembly in the extension direction of the roller assembly.

[0015] Beneficial effects: In this utility model, the control component of the roller structure is located inside the guide rail mechanism, and both ends of the control component are connected to the first guide rail and the second guide rail respectively. The control component can apply a pulling force along the extension direction. The action position of the control component is on the first guide rail and the second guide rail. By applying a pulling force to the guide rail mechanism, a pulling force along the extension direction is applied to the roller assembly, thereby cleverly combining the structure of the first control component of the extension mechanism with the structure of the guide rail mechanism. This fully utilizes the characteristics of the roller structure, making the structure compact, saving installation space, and greatly simplifying the roller structure.

[0016] In one alternative implementation, the sidewall of the control element is suspended.

[0017] Beneficial effects: In the roller structure of this utility model, the control component is set inside the guide rail mechanism, and the side wall of the control component is suspended, that is, the side wall of the control component does not contact the guide rail, thereby avoiding sliding friction between the control component and the inside of the guide rail during operation, ensuring the structural performance and service life of the control component and the guide rail mechanism.

[0018] In one alternative embodiment, the length direction of the control element is parallel to the length direction of the guide rail mechanism.

[0019] Beneficial effects: The roller structure of this utility model has the length direction of the control component parallel to the length direction of the guide rail mechanism, which can make full use of the internal space of the guide rail mechanism, and at the same time facilitates the installation and setting of the control component, which is conducive to improving the performance of the mechanism.

[0020] In one alternative embodiment, the control element is centrally located within the guide rail mechanism in the horizontal direction.

[0021] Beneficial effects: In the roller structure of this utility model, the control component is centrally located in the guide rail mechanism in the horizontal direction. When the roller assembly moves telescopically relative to the first support, it avoids the first guide rail and the second guide rail from being subjected to force in the direction perpendicular to their lengths. It also makes the force exerted by the control component on the first guide rail and the second guide rail more balanced and consistent, avoiding structural damage caused by uneven force, and improving the reliability and stability of the structure.

[0022] In one alternative embodiment, at least one of the first guide rail and the second guide rail is provided with a fixed end, and the end of the control member is connected to the first guide rail and / or the second guide rail through the fixed end.

[0023] Beneficial effects: The roller structure of this utility model has a fixed end provided on at least one of the first guide rail and the second guide rail. The end of the control component is connected to the first guide rail and / or the second guide rail through the fixed end, which facilitates the connection between the control component and the first guide rail and / or the second guide rail and makes the structure easier to install.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Thirdly, this utility model also provides a cleaning device, including a first bracket and a roller structure as described above, or including a mopping system as described above.

[0029] 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.

[0030] In one alternative implementation, the cleaning equipment is one of a sweeping robot, a mopping robot, a floor scrubbing robot, and a cleaning robot.

[0031] 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

[0032] 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.

[0033] Figure 1 This is a schematic diagram of the roller assembly (and part of the guide rail mechanism) in the roller structure of this utility model;

[0034] Figure 2 This is a cross-sectional view of the roller structure of this utility model;

[0035] Figure 3This is a schematic diagram of the roller structure (roller assembly extended state) of this utility model;

[0036] Figure 4 This is a schematic diagram of the roller structure (roller assembly in retracted state) of this utility model;

[0037] Figure 5 This is an exploded view of the guide rail mechanism in the roller structure of this utility model. Figure 1 ;

[0038] Figure 6 This is an exploded view of the guide rail mechanism in the roller structure of this utility model. Figure 2 ;

[0039] Figure 7 This is an exploded view of the guide rail mechanism in the roller structure of this utility model. Figure 3 ;

[0040] Figure 8 This is a top view of the guide rail mechanism in the drum structure of this utility model;

[0041] Figure 9 This is a side view of the guide rail mechanism in the roller structure of this utility model;

[0042] Figure 10 This is a schematic diagram of the overall mopping system of this utility model;

[0043] Figure 11 This is a cross-sectional view of the mopping system of this utility model;

[0044] Figure 12 This is an exploded view of the mopping system of this utility model;

[0045] Figure 13 This is a top view of the cleaning device of this utility model (with the roller assembly extended).

[0046] Figure 14 This is a top view of the cleaning equipment of this utility model (drum assembly in retracted state).

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. First support;

[0049] 2. Roller assembly; 201. Second bracket; 202. Roller; 203. Connector; 204. Sludge collection tank; 205. Sludge scraper; 206. Sludge suction pipe; 207. Water circuit board; 208. Water circuit board inlet pipe;

[0050] 3. Telescopic drive component;

[0051] 4. Pulling components;

[0052] 5. Control components; 501. Connecting end;

[0053] 6. Fixed end;

[0054] 7. Main body;

[0055] 801. First guide rail; 802. Second guide rail; 803. Bottom protrusion; 804. Side protrusion; 805. Top protrusion;

[0056] 901. Extension / retraction positioning detection component; 902. Extension / retraction positioning detection column;

[0057] 10. Clean water tank;

[0058] 11. Sewage tank;

[0059] 12. Rotation drive component. Detailed Implementation

[0060] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0061] Currently, the roller assembly of most cleaning equipment is fixedly installed at the bottom of the main body of the equipment, and the roller assembly is 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 and affecting the cleaning effect of the equipment.

[0062] Based on this, the present invention provides a roller structure, a mopping system, and a cleaning device.

[0063] The following combination Figures 1-14 This describes embodiments of the roller structure, control system, and cleaning equipment of this utility model.

[0064] According to an embodiment of the present invention, in a first aspect, a roller structure is provided for use in a cleaning device. The cleaning device includes a first support 1, and the roller structure is retractably disposed at the bottom of the first support 1. The roller structure includes a roller assembly 2, a guide rail mechanism, and a telescopic mechanism. The guide rail mechanism is disposed between the first support 1 and the roller assembly 2, and the roller assembly 2 retracts relative to the first support 1 via the guide rail mechanism. The telescopic mechanism includes a first control component and a second control component for applying a force to the roller assembly 2. The first control component is disposed on the guide rail mechanism, and the second control component is disposed on the first support 1. 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 on the roller assembly 2, 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 on the roller assembly 2, the second control component causes the roller assembly 2 to retract relative to the first support 1.

[0065] 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 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 first control component is located within the guide rail mechanism, making the roller structure simpler and more compact, with a smaller overall volume and less space required, which is beneficial for further optimization of product dimensions.

[0066] This roller structure can be applied to cleaning equipment such as sweepers, mops, floor scrubbers, or cleaning robots. The cleaning equipment has a main body 7, and the roller structure is located at the bottom of the main body 7. The cleaning equipment includes a first support 1, which is located at the bottom of the main body 7.

[0067] 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. Figures 3-4 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.

[0068] The roller assembly 2 is retractably 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 achieving the cleaning process. The roller assembly 2 is located at the bottom of the first support 1 and can retract and 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.

[0069] like Figure 1 As shown, the roller assembly 2 has a roughly elongated structure and includes a second support 201, a roller 202, a sludge collection tank 204, and a water channel plate 207. 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, the sludge collection tank 204, and the water channel plate 207. The roller 202 is housed within the second support 201 and is the roller mop. A rotation drive 12 is also provided on the first support 1, and its output shaft is connected to the roller 202 to drive its rotation. The rotation drive 12 is specifically a drive motor.

[0070] In this embodiment, the roller structure is a double-roller structure, meaning there are two rollers 202. The rollers 202 are positioned on the side of the second support 201 facing the surface to be cleaned. During operation, the rollers 202 can rotate to clean the surface. A dirt collection tank 204 is positioned between the two rollers 202. A scraper 205 is positioned above the dirt collection tank 204, with both ends of the scraper 205 contacting the outer walls of the two rollers 202 to scrape off debris and wastewater from the outer walls. This debris and wastewater fall into the dirt collection tank 204 for collection and subsequent cleaning by the user. A water channel plate 207 is positioned above the scraper 205. A water inlet pipe 208 and a suction pipe 206 are also provided on the top of the roller support 2012. The water inlet pipe 208 can be connected to the water channel plate 207 of the cleaning equipment, and the suction pipe 206 is connected to the dirt collection tank 204 to facilitate the discharge of debris and wastewater from the tank.

[0071] The water channel plate 207, the scraper 205, the sludge collection tank 204, 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 channel plate 207 remains in place and the water falls directly to the ground without falling onto the roller 202, or the scraper 205 and the sludge collection tank 204 remain in place and do not scrape the sewage onto the roller 202, which would greatly reduce the cleaning effect.

[0072] The second support 201 is also provided with a connector 203, 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.

[0073] A guide rail mechanism is positioned between the first support 1 and the roller assembly 2. Guided by the guide rail mechanism, the roller assembly 2 can extend and retract relative to the first support 1 along the guide rail mechanism, making the extension and retraction of the roller assembly 2 smoother and more stable. 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, positioned between the first support 1 and the roller assembly 2, saves installation space, making the overall structure more compact and reasonable, while also enabling the roller assembly 2 to extend and retract more stably relative to the first support 1.

[0074] The telescopic mechanism controls the telescopic movement of the roller assembly 2. The 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. In other words, by adjusting the magnitude of the forces exerted by the first and second control components on the roller assembly 2, the roller assembly 2 can be moved to the extended position under the control of the first control component, and it can also be moved to the retracted position under the control of the second control component.

[0075] The roller assembly 2 is retractably and movably mounted on the side of the first support 1 facing the surface to be cleaned. A first control component drives the roller assembly 2 to extend beyond the projection range of the first support 1 on the surface to be cleaned, and a second control component drives the roller assembly 2 to retract into the projection range of the first support 1 on the surface to be cleaned. In this embodiment, the bottom of the first support 1 is the side facing the surface to be cleaned, and the roller assembly 2 is retractably and movably mounted on 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 to say, 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 bracket 1.

[0076] Furthermore, the first control component is located inside the guide rail mechanism.

[0077] To achieve relative sliding, the guide rail mechanism has a certain amount of internal space. The first control component is integrated into the inside of the guide rail mechanism, making full use of the internal space of the guide rail mechanism. There is no need to configure and set space for the first control component on other structures, making the roller structure more compact and reasonable, further saving setting space, and also facilitating the layout of other structural components.

[0078] Furthermore, the guide rail mechanism includes a first guide rail 801 and a second guide rail 802 that are slidably engaged. One of the first guide rail 801 and the second guide rail 802 is disposed on the bottom surface of the first support 1, and the other is disposed on the top surface of the roller assembly 2.

[0079] In this embodiment, the guide rail mechanism includes a first guide rail 801 and a second guide rail 802 that slide together. One of the first guide rail 801 and the second guide rail 802 is disposed on the bottom surface of the first bracket 1, and the other is disposed on the top surface of the roller assembly 2. The first guide rail 801 is made of aluminum alloy, and the second guide rail 802 is made of POM (Polyoxymethylene). This material has self-lubricating properties, which makes the sliding process of the second guide rail 802 relative to the first guide rail 801 less frictional and smoother.

[0080] like Figure 5-Figure 9 As shown, the first guide rail 801 is a semi-enclosed guide rail, and the second guide rail 802 is disposed within the first guide rail 801, and the first guide rail 801 and the second guide rail 802 can slide relative to each other. One of the first guide rail 801 and the second guide rail 802 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 801 is disposed on the bottom surface of the first bracket 1, and the second guide rail 802 is disposed on the top surface of the second bracket 201.

[0081] In other embodiments, depending on different setup requirements, the first guide rail 801 may be disposed on the top surface of the second bracket 201, while the second guide rail 802 may be disposed on the bottom surface of the first bracket 1.

[0082] Furthermore, the first control component includes a control element 5, one end of which is connected to the first guide rail 801 and the other end of which is connected to the second guide rail 802. The control element 5 applies a pulling force to the roller assembly 2 in the extension direction of the roller assembly 2.

[0083] After the first guide rail 801 and the second guide rail 802 cooperate with each other, a receiving space is formed between the first guide rail 801 and the second guide rail 802, such as Figure 9 As shown, the control component 5 is disposed within the accommodating space, thereby achieving full utilization of the structural space. One end of the control component 5 is connected to the first guide rail 801, and the other end is connected to the second guide rail 802. Since the first guide rail 801 is connected to the first support 1, and the second guide rail 802 is connected to the second support 201, and the control component 5 can apply a pulling force along the extension direction to the roller assembly 2, the roller assembly 2 can move telescopically relative to the first support 1 under the control of the control component 5.

[0084] like Figures 5-6As shown, specifically, each end of the control component 5 has a connecting end 501, which is a ring structure to facilitate the connection between the control component 5 and the first guide rail 801 and the second guide rail 802.

[0085] 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.

[0086] Specifically, the first support 1 is provided with a U-shaped groove, and the pulling member 4 is U-shaped and set on the first support 1 to make full use of the space on the first support 1. Furthermore, the pulling member 4 is made of steel wire rope, which is wound on a winding wheel, which is set on the first support. One end of the pulling member 4 is connected to the output end of the telescopic drive member 3, and the other end of the pulling member 4 is connected to the connecting member 203. The telescopic drive member 3 provides power so that the second control component can apply force to the roller assembly 2. That is, one end of the pulling member 4 is driven by the telescopic drive member 3, and the other end of the pulling member 4 is connected to the roller assembly 2. The pulling member 4 is used to pull the roller assembly 2, and by overcoming the force exerted on the roller assembly 2 by the first control component, it drives the roller assembly 2 to retract relative to the first support 1.

[0087] like Figures 3-4 As shown, Figure 3 The middle arrow 'a' indicates the direction of extension. Figure 4 The middle arrow b indicates the retraction direction. In this embodiment, the control element 5 is an elastic element. When the roller assembly 2 retracts relative to the first support 1, the control element 5 is in a stretched state. Specifically, the control element 5 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.

[0088] Specifically, when the roller assembly 2 retracts relative to the first support 1, the control member 5 is in a stretched state. The control member 5 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 member 5, 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.

[0089] In addition, the telescopic structure also includes a telescopic positioning detection element 901 and a telescopic positioning detection column 902. When the telescopic positioning detection column 902 contacts the telescopic positioning detection element 901, the roller assembly 2 extends or retracts into place.

[0090] Furthermore, the side wall of control component 5 is suspended.

[0091] In this embodiment, the control component 5 is disposed inside the guide rail mechanism, and the side wall of the control component 5 is suspended, that is, the side wall of the control component 5 does not contact the inner wall of the guide rail mechanism, thereby avoiding sliding friction between the control component 5 and the inside of the guide rail during operation, which would cause wear on the control component 5 and the guide rail mechanism, thus ensuring the structural performance and service life of the control component 5 and the guide rail mechanism.

[0092] Specifically, the control element 5 is a tension spring, and the cross-sectional shape of the control element 5 perpendicular to its length direction is circular. The two ends of the control element 5 are respectively connected to the first guide rail 801 and the second guide rail 802, and the height (vertical height) of the connection position is greater than the radius of the circular cross-section of the control element 5, so that when the control element 5 is connected to the first guide rail 801 and the second guide rail 802, the side wall of the control element 5 is suspended and does not contact the bottom wall of the second guide rail 802.

[0093] To further ensure that no sliding friction occurs between the control component 5 and the guide rail mechanism, the side wall of the control component 5 should not contact the top wall of the first guide rail 801 or the side wall of the second guide rail 802.

[0094] Furthermore, the length direction of the control component 5 is parallel to the length direction of the guide rail mechanism. This parallel alignment of the control component 5's length direction with the guide rail mechanism allows for full utilization of the guide rail mechanism's internal space, facilitates the installation and setup of the control component 5, and improves the mechanism's performance.

[0095] Specifically, the length direction of the control component 5 is parallel to the length direction (i.e., the extension direction) of the first guide rail 801 and the second guide rail 802, so as to facilitate the installation of the control component 5 and make full use of the internal space of the guide rail mechanism.

[0096] Furthermore, the control component 5 is centrally located within the guide rail mechanism in the horizontal direction.

[0097] like Figure 9 As shown by arrow c-c', the control component 5 is centrally positioned within the guide rail mechanism in the horizontal direction. The control component 5 does not contact the top wall of the first guide rail 801, nor the side or bottom wall of the second guide rail 802, and the force applied by the control component 5 is parallel to the length direction of the guide rail mechanism. When the roller assembly 2 moves telescopically relative to the first support 1, this prevents the first guide rail 801 and the second guide rail 802 from being subjected to forces perpendicular to their length direction (lateral direction). This ensures a more balanced and consistent force exerted by the control component 5 on the first and second guide rails 801 and 802, preventing structural damage due to uneven force distribution and improving the reliability and stability of the structure.

[0098] Furthermore, at least one of the first guide rail 801 and the second guide rail 802 is provided with a fixed end 6, and the end of the control member 5 is connected to the first guide rail 801 and / or the second guide rail 802 through the fixed end 6. The fixed end 6 on at least one of the first guide rail 801 and the second guide rail 802 facilitates the connection of the control member to the first guide rail and / or the second guide rail, and facilitates structural installation.

[0099] like Figures 5-6 As shown, in this embodiment, both the first guide rail 801 and the second guide rail 802 are provided with fixed ends 6. A fixed end 6 is located inside the first guide rail 801 on its top wall facing the second guide rail 802, and another fixed end 6 is located inside the second guide rail 802 on its bottom wall facing the first guide rail 801. The positions of the two fixed ends 6 are matched and correspond, so that after the control member 5 is connected to the two fixed ends 6, the length direction of the control member 5 is parallel to the extension direction of the guide rail mechanism, and the side wall of the control member 5 does not contact the inner wall of the guide rail mechanism. Simultaneously, the control member 5 is centrally located within the guide rail mechanism in the horizontal direction.

[0100] Specifically, the cross-sectional shape of the fixed end 6 perpendicular to the vertical direction is T-shaped, so as to facilitate the installation of the connecting end 501 of the control component 5 with the fixed end 6, simplify the operation, and ensure the connection is firm.

[0101] In other embodiments, depending on different setup requirements, the fixed end 6 can be set only on the first guide rail 801 or only on the second guide rail 802, as long as the length direction of the control member 5 is parallel to the extension direction of the guide rail mechanism, and the side wall of the control member 5 does not contact the inner wall of the guide rail mechanism, and the control member 5 is centrally located in the guide rail mechanism in the horizontal direction.

[0102] Furthermore, the guide rail mechanism also includes several protrusions, which are located at the contact positions of the first guide rail 801 and the second guide rail 802.

[0103] By setting several protrusions at the contact position of the first guide rail 801 and the second guide rail 802, the contact area of ​​the first guide rail 801 and the second guide rail 802 can be reduced, the friction between the first guide rail 801 and the second guide rail 802 can be reduced, and the relative sliding between the first guide rail 801 and the second guide rail 802 can be made smoother.

[0104] In this embodiment, the protrusions include a bottom protrusion 803, a side protrusion 804, and a top protrusion 805. The bottom protrusion 803 is disposed at the bottom of the second guide rail 802 and in contact with the first guide rail 801. Multiple bottom protrusions 803 are provided, spaced apart along the length of the second guide rail 802. The side protrusions 804 are disposed on the two side walls of the second guide rail 802, and are continuously arranged along the length of the second guide rail 802. The top protrusion 805 is disposed at the top of the two side walls of the second guide rail 802, and is continuously arranged along the length of the second guide rail 802.

[0105] Furthermore, 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. One of the first guide rail 801 and the second guide rail 802 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 802 is disposed in the recessed structure.

[0106] like Figures 10-12 As shown, this embodiment also provides a mopping system, including a clean water tank 10, a waste water tank 11, and a roller structure as described above. The clean water tank 10 is disposed above the first support 1, and the waste water tank 11 is disposed near the roller 202 of the roller assembly 2.

[0107] The entire mopping system is located at the rear of the cleaning equipment, below the main body 7. From top to bottom, the mopping system consists of a clean water tank 10, a first support 1, a guide rail mechanism, a second support 201, a water circuit board 207, a scraper 205, and a dirt collection tank 204. Rollers 202 are located on both sides of the dirt collection tank 204, and the wastewater tank 11 is located behind the roller assembly 2. Water in the clean water tank 10 is connected to the water inlet pipe 208 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 207. The scraper 205 scrapes and washes the rollers 202, and the scraped wastewater is collected by the dirt collection tank 204. The wastewater in the dirt collection tank 204 flows through the suction pipe 206 to the wastewater tank 11 of the entire machine for subsequent centralized cleaning by the user.

[0108] like Figures 13-14 As shown, this embodiment also provides a cleaning device, including a first bracket 1 and a roller structure as described above, or including a mopping system as described above.

[0109] 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.

[0110] Of course, cleaning equipment also has other structural components that are present in all existing cleaning equipment, which will not be elaborated here.

[0111] 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.

[0112] The working process of the cleaning equipment in this embodiment will be described below with reference to the accompanying drawings:

[0113] 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 column 902 on the second bracket 201 triggers the signal of the telescopic positioning detection member 901, 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).

[0114] When the machine is cleaning along the edges, 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 hard-to-reach corners such as walls, table and chair corners.

[0115] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A roller structure, characterized in that, Applied to cleaning equipment, the cleaning equipment includes a first support (1), and a roller structure is telescopically disposed at the bottom of the first support (1), the roller structure comprising: Roller assembly (2); 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; The telescopic mechanism includes a first control component and a second control component for applying force to the roller assembly (2). The first control component is disposed on the guide rail mechanism, and the second control component is disposed on the first bracket (1). 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 on the roller assembly (2), the first control component causes the roller assembly (2) to extend relative to the first bracket (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 on the roller assembly (2), the second control component causes the roller assembly (2) to retract relative to the first bracket (1).

2. The roller structure according to claim 1, characterized in that, The first control component is located inside the guide rail mechanism.

3. The roller structure according to claim 2, characterized in that, The guide rail mechanism includes a first guide rail (801) and a second guide rail (802) that are in sliding engagement. One of the first guide rail (801) and the second guide rail (802) is disposed on the bottom surface of the first bracket (1), and the other is disposed on the top surface of the roller assembly (2).

4. The roller structure according to claim 3, characterized in that, The first control component includes a control element (5), one end of which is connected to the first guide rail (801) and the other end of which is connected to the second guide rail (802). The control element (5) applies a pulling force to the roller assembly (2) in the direction of extension of the roller assembly (2).

5. The roller structure according to claim 4, characterized in that, The side wall of the control component (5) is suspended.

6. The roller structure according to claim 4, characterized in that, The length direction of the control component (5) is parallel to the length direction of the guide rail mechanism.

7. The roller structure according to claim 6, characterized in that, The control component (5) is centrally located within the guide rail mechanism in the horizontal direction.

8. The roller structure according to claim 4, characterized in that, At least one of the first guide rail (801) and the second guide rail (802) is provided with a fixed end (6), and the end of the control member (5) is connected to the first guide rail (801) and / or the second guide rail (802) through the fixed end (6).

9. The roller structure according to any one of claims 4-8, characterized in that, The guide rail mechanism also includes several protrusions, which are disposed at the contact positions of the first guide rail (801) and the second guide rail (802).

10. A mopping system, characterized in that, It includes a clean water tank (10), a wastewater tank (11), and a roller structure as described in any one of claims 1-9, wherein the clean water tank (10) is disposed above the first support (1), and the wastewater tank (11) is disposed near the roller (202) of the roller assembly (2).

11. A cleaning device, characterized in that, It includes a first support (1) and a roller structure as described in any one of claims 1-9, or includes a mopping system as described in claim 10.

12. The cleaning equipment according to claim 11, 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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