Roller structure, mopping system and cleaning equipment

Abstract

The invention 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] The present invention relates to the technical field of electrical equipment, and in particular to a drum structure, a mopping system and a cleaning device. Background Art

[0002] Cleaning equipment (such as sweeping robots, mopping machines, floor scrubbers, etc.) is a type of equipment that is mainly used for sanitation and cleaning, and has the advantages of saving time and effort, low noise, and being lightweight and compact. In recent years, with the continuous development of science and technology, cleaning equipment has become more and more intelligent and can perform cleaning work in planned ground areas, which has largely freed people's hands and brought convenience to people's lives.

[0003] Existing cleaning equipment mainly includes a body base and a roller assembly. The roller assembly is fixed to the bottom of the body base, and usually the roller assembly does not exceed the horizontal size range of the body. As a result, when the cleaning equipment cleans corners such as walls, the roller assembly cannot clean close to the edge, resulting in a blind spot, resulting in poor cleaning effect. Over time, corners are prone to dust accumulation. Moreover, when the cleaning equipment returns to the base station to clean the roller, there is secondary pollution, which gives users a poor user experience. Summary of the invention

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

[0005] In a first aspect, the present invention provides a drum structure, which is applied to a cleaning device, wherein the cleaning device comprises a first bracket, and the drum structure is telescopically arranged at the bottom of the first bracket, and the drum structure comprises:

[0006] Roller assembly;

[0007] A guide rail mechanism is provided between the first bracket and the roller assembly, and the roller assembly is telescopically movable 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, wherein the first control component is arranged on the guide rail mechanism, and the second control component is arranged on the first bracket; when the force applied by the second control component to the roller assembly is less than the force applied by the first control component to the roller assembly, the first control component drives the roller assembly to extend relative to the first bracket, and when the force applied by the second control component to the roller assembly is greater than the force applied by the first control component to the roller assembly, the second control component drives the roller assembly to retract relative to the first bracket.

[0009] Beneficial effects: The roller structure of the present invention includes a roller assembly, a guide rail mechanism and a telescopic mechanism. The roller assembly can be telescopically moved. When cleaning corner areas such as the wall, the force of the second control assembly on the roller assembly is less than the force of the first control assembly on the roller assembly. The first control assembly drives the roller assembly to extend relative to the first bracket, so that the roller assembly is not affected by the position of the first bracket and can be closer to the corner area, so as to achieve "edge cleaning" to effectively clean the corner area, significantly reduce the cleaning blind area, and greatly improve the cleaning effect. When the corner area does not need to be cleaned (that is, when the roller assembly needs to be reset), the force of the second control assembly on the roller assembly is greater than the force of the first control assembly on the roller assembly, and the second control assembly drives the roller assembly to retract relative to the first bracket. Through the coordinated cooperation of the first control assembly and the second control assembly, the position of the roller assembly can be adjusted, so that the controllability of the roller assembly is stronger, and the telescopic movement process of the roller assembly is smoother. This roller structure not only has a better cleaning effect, but also a better user experience. In addition, a guide rail mechanism is set between the first bracket and the roller assembly, which can ensure that the telescopic movement of the roller assembly is smoother and smoother, and improve the stability and reliability of the structure. In addition, the first control component is arranged on the guide rail mechanism, so that the roller structure is simpler and more compact, the overall volume is smaller, and the space occupied is small, which is conducive to further optimization of product size.

[0010] In an optional embodiment, the first control component is disposed inside the guide rail mechanism.

[0011] Beneficial effects: The drum structure of the present invention 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 the setting space, and facilitating the layout of other structures.

[0012] In an optional embodiment, the guide rail mechanism includes a first guide rail and a second guide rail that are slidably matched, one of the first guide rail and the second guide rail is arranged on the bottom surface of the first bracket, and the other is arranged on the top surface of the roller assembly.

[0013] Beneficial effects: The roller structure of the present invention, the guide rail mechanism includes a first guide rail and a second guide rail that slide together. The guide rail mechanism has a relatively simple structure, occupies a small space, is easy to set up and install, and is conducive to reducing product costs.

[0014] In an optional embodiment, the first control assembly includes a control member, one end of the control member is connected to the first guide rail, and the other end of the control member is connected to the second guide rail, and the control member applies a pulling force to the roller assembly along the extending direction of the roller assembly.

[0015] Beneficial effect: In the roller structure of the present invention, the control member is arranged in the guide rail mechanism, and the two ends of the control member are respectively connected to the first guide rail and the second guide rail, the control member can apply a pulling force along the extending direction, and the control member is positioned on the first guide rail and the second guide rail. By applying a pulling force to the guide rail mechanism, a pulling force is then applied to the roller assembly along the extending direction, thereby cleverly combining the first control assembly of the extending mechanism with the structure of the guide rail mechanism, making full use of the characteristics of the roller structure, making the structure compact, saving setting space, and greatly simplifying the roller structure.

[0016] In an optional embodiment, the side wall of the control member is suspended.

[0017] Beneficial effect: In the drum structure of the present invention, the control part is arranged in the guide rail mechanism, and the side wall of the control part is suspended, that is, the side wall of the control part does not contact the guide rail, thereby avoiding sliding friction between the control part and the inside of the guide rail during operation, thereby ensuring the structural performance and service life of the control part and the guide rail mechanism.

[0018] In an optional embodiment, the length direction of the control member is parallel to the length direction of the guide rail mechanism.

[0019] Beneficial effects: In the drum structure of the present invention, the length direction of the control part is parallel to the length direction of the guide rail mechanism, which can fully utilize the internal space of the guide rail mechanism and facilitate the installation of the control part, which is beneficial to improving the performance of the mechanism.

[0020] In an optional embodiment, the control member is centrally arranged in the guide rail mechanism in the horizontal direction.

[0021] Beneficial effect: In the roller structure of the present invention, the control part is centrally arranged in the guide rail mechanism in the horizontal direction. When the roller assembly telescopes relative to the first bracket, force is avoided between the first guide rail and the second guide rail in a direction perpendicular to their lengths, and the force exerted by the control part on the first guide rail and the second guide rail is made more balanced and consistent, thereby avoiding structural damage due to uneven force and improving the reliability and stability of the structure.

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

[0023] Beneficial effect: The roller structure of the present invention is provided with a fixed end on at least one of the first guide rail and the second guide rail, and the end of the control member is connected to the first guide rail and / or the second guide rail through the fixed end, thereby facilitating the connection of the control member with the first guide rail and / or the second guide rail and facilitating the installation of the structure.

[0024] In an optional embodiment, the guide rail mechanism further includes a plurality of protrusions, and the protrusions are arranged at the contact position between the first guide rail and the second guide rail.

[0025] Beneficial effect: The roller structure of the present invention can reduce the contact area between 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 by arranging a plurality of protrusions at the contact position of the first guide rail and the second guide rail.

[0026] In a second aspect, the present invention further provides a mopping system, comprising a clean water tank, a dirty water tank and the above-mentioned drum structure, wherein the clean water tank is arranged above the first bracket, and the dirty water tank is arranged close to the drum of the drum assembly.

[0027] Because the mopping system of the present invention includes the drum structure of the present invention and has the same beneficial effects as the drum structure, it will not be described in detail here.

[0028] In a third aspect, the present invention further provides a cleaning device, comprising a first bracket and the above-mentioned roller structure, or comprising the above-mentioned mopping system.

[0029] Because the cleaning device of the present invention includes the drum structure or mopping system of the present invention, it has the same beneficial effects as the drum structure and mopping system, which will not be described in detail here.

[0030] In an optional embodiment, the cleaning device is one of a sweeper, a mop, a scrubber and a cleaning robot.

[0031] Beneficial effects: The cleaning device of the present invention may be one of a sweeper, a mop, a scrubber and a cleaning robot, and the drum structure of the present invention has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of a roller assembly (and part of the guide rail mechanism) in the roller structure of the present invention;

[0034] Figure 2 is a cross-sectional view of the drum structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the roller structure of the present invention (the roller assembly is extended);

[0036] Figure 4 It is a schematic diagram of the roller structure of the present invention (the roller assembly is in a retracted state);

[0037] Figure 5 Schematic diagram of the guide rail mechanism in the roller structure of the present invention Figure 1 ;

[0038] Figure 6 Schematic diagram of the guide rail mechanism in the roller structure of the present invention Figure 2 ;

[0039] Figure 7 Schematic diagram of the guide rail mechanism in the roller structure of the present invention Figure 3 ;

[0040] Figure 8 It is a top view of the guide rail mechanism in the roller structure of the present invention;

[0041] Fig. 9 It is a side view of the guide rail mechanism in the roller structure of the present invention;

[0042] Fig.10 is an overall schematic diagram of the mopping system of the present invention;

[0043] Fig.11 is a cross-sectional view of the mopping system of the present invention;

[0044] Fig.12 is an exploded schematic diagram of the mopping system of the present invention;

[0045] Fig.13 A top view of the cleaning device of the present invention (with the roller assembly extended);

[0046] Fig.14 It is a top view of the cleaning device of the present invention (the roller assembly is retracted).

[0047] Description of reference numerals:

[0048] 1. The first bracket;

[0049] 2. Drum assembly; 201. Second bracket; 202. Drum; 203. Connector; 204. Sewage collecting tank; 205. Sewage scraping plate; 206. Sewage extraction pipe; 207. Waterway plate; 208. Waterway plate water inlet pipe;

[0050] 3. Telescopic drive parts;

[0051] 4. Pulling piece;

[0052] 5. Control part; 501. Connection terminal;

[0053] 6. Fixed end;

[0054] 7. Subject;

[0055] 801, first guide rail; 802, second guide rail; 803, bottom protrusion; 804, side protrusion; 805, top protrusion;

[0056] 901, telescopic detection member; 902, telescopic detection column;

[0057] 10. Clean water tank;

[0058] 11. Sewage tank;

[0059] 12. Rotate the driving member. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0061] At present, the roller assembly of cleaning equipment is mostly fixed at the bottom of the main body of the cleaning equipment, and the roller assembly is placed within the projection range of the main body on the ground, and the outer edge of the roller assembly is at a certain distance from the outer edge of the main body. When cleaning corner areas, such as the edge of a wall, the main body first contacts the wall, and the roller assembly cannot clean close to the wall, resulting in long-term dust accumulation at the wall, affecting the cleaning effect of the cleaning equipment.

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

[0063] Combine the following Figure 1-Figure 14 , describing the embodiments of the drum structure, control system and cleaning equipment of the present invention.

[0064] According to an embodiment of the present invention, in a first aspect, a roller structure is provided, which is applied to a cleaning device. The cleaning device includes a first bracket 1, and the roller structure is telescopically arranged at the bottom of the first bracket 1. The roller structure includes: a roller assembly 2, a guide rail mechanism, and a telescopic mechanism. The guide rail mechanism is arranged between the first bracket 1 and the roller assembly 2, and the roller assembly 2 is telescopically moved relative to the first bracket 1 through the guide rail mechanism. The telescopic mechanism includes a first control assembly and a second control assembly for applying a force to the roller assembly 2, the first control assembly is arranged on the guide rail mechanism, and the second control assembly is arranged on the first bracket 1. When the force applied by the second control assembly to the roller assembly 2 is less than the force applied by the first control assembly to the roller assembly 2, the first control assembly drives the roller assembly 2 to extend relative to the first bracket 1, and when the force applied by the second control assembly to the roller assembly 2 is greater than the force applied by the first control assembly to the roller assembly 2, the second control assembly drives the roller assembly 2 to retract relative to the first bracket 1.

[0065] In this drum structure, the drum assembly 2 can be telescopically moved. When cleaning corner areas such as the wall, the force of the second control assembly on the drum assembly 2 is smaller than the force of the first control assembly on the drum assembly 2. The first control assembly drives the drum assembly 2 to extend relative to the first bracket 1, so that the drum assembly 2 is not affected by the position of the first bracket 1 and can be closer to the corner area, so as to achieve "edge cleaning" to effectively clean the corner area, significantly reduce the cleaning blind area, and greatly improve the cleaning effect. When the corner area does not need to be cleaned (that is, when the drum assembly 2 needs to be reset), the force of the second control assembly on the drum assembly 2 is greater than the force of the first control assembly on the drum assembly 2, and the second control assembly drives the drum assembly 2 to retract relative to the first bracket 1. Through the coordinated cooperation of the first control assembly and the second control assembly, the position of the drum assembly 2 can be adjusted, so that the drum assembly 2 is more controllable, and the telescopic movement process of the drum assembly 2 is smoother. This drum structure not only has a better cleaning effect, but also a better user experience. Moreover, a guide rail mechanism is provided between the first bracket 1 and the roller assembly 2, which can ensure that the roller assembly 2 can move more stably and smoothly relative to the first bracket 1, thereby improving the stability and reliability of the structure. In addition, the first control assembly is provided 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.

[0066] The drum structure can be applied to cleaning equipment such as a sweeper, a mop, a scrubber or a cleaning robot. The cleaning equipment has a main body 7, and the drum structure is arranged at the bottom of the main body 7. The cleaning equipment includes a first bracket 1, and the first bracket 1 is arranged at the bottom of the main body 7.

[0067] The first bracket 1 has a certain structural strength and can support and set the roller assembly 2, the guide rail mechanism and the telescopic mechanism. Usually, the first bracket 1 is made of waterproof, corrosion-resistant and high-strength materials to ensure the service life of the entire roller structure. The first bracket 1 is a long strip-like structure. Figure 3-Figure 4 Taking the perspective as an example, the bottom of the first bracket 1 faces the surface to be cleaned. According to the application scenarios of different cleaning equipment, the surface to be cleaned can be the ground, the wall, etc. In this embodiment, the surface to be cleaned is the ground as an example.

[0068] The roller assembly 2 is telescopically movably arranged on the first bracket 1. The roller assembly 2 is mainly used to clean the surface to be cleaned. When working, the roller assembly 2 is in direct contact with the surface to be cleaned to realize the cleaning process. The roller assembly 2 is arranged at the bottom of the first bracket 1 and can be telescopically moved relative to the first bracket 1, that is, the position of the roller assembly 2 is not fixed relative to the first bracket 1 and the position can be changed. The roller assembly 2 can be extended relative to the first bracket 1. When the roller assembly 2 is extended to a preset extended position (extended to the full position), the roller assembly 2 is in an extended state. Correspondingly, the roller assembly 2 can be retracted relative to the first bracket 1. When the roller assembly 2 is retracted to a preset retracted position (retracted to the full position), the roller assembly 2 is in a retracted state. In other words, the roller assembly 2 can reciprocate between the corresponding positions of the extended state and the retracted state, that is, the roller assembly 2 can move from the retracted state to the extended state, and can also move from the extended state to the retracted state.

[0069] like Figure 1 As shown, the drum assembly 2 is in a strip-like structure as a whole, and the drum assembly 2 includes a second bracket 201, a drum 202, a dirt collecting tank 204, and a waterway plate 207. The second bracket 201 is also called a telescopic bracket, and is the shell structure of the drum assembly 2. The second bracket 201 is telescopically connected to the first bracket 1. The second bracket 201 has a certain structural strength and can support and set structural components such as the drum 202, the dirt collecting tank 204, and the waterway plate 207. The drum 202 is set in the second bracket 201. The drum 202 is a drum mop. A rotating driving member 12 is also set on the first bracket 1. The output shaft of the rotating driving member 12 is connected to the drum 202 to drive the drum 202 to rotate. The rotating driving member 12 specifically adopts a driving motor.

[0070] In this embodiment, the drum structure is a double-drum structure, that is, two drums 202 are provided, and the drums 202 are provided on the side of the second bracket 201 facing the surface to be cleaned. When working, the drums 202 can rotate to clean the surface to be cleaned. The sewage collecting tank 204 is provided between the two drums 202, and a scraper plate 205 is provided above the sewage collecting tank 204. The two ends of the scraper plate 205 contact the outer walls of the two drums 202 to scrape off the debris and sewage on the outer walls of the drums 202. These debris and sewage will fall into the sewage collecting tank 204 for collection so that subsequent users can clean them in a centralized manner. The waterway plate 207 is provided above the scraper plate 205, and a waterway plate water inlet pipe 208 and a sewage extraction pipe 206 are also provided on the top of the drum bracket 2012. The waterway plate water inlet pipe 208 can be connected to the waterway plate 207 of the cleaning equipment, and the sewage extraction pipe 206 is connected to the sewage collecting tank 204 to facilitate the discharge of debris and sewage in the sewage collecting tank 204.

[0071] The waterway plate 207, the scraper plate 205, the dirt collecting trough 204 and the drum 202 all telescope and move together with the second bracket 201, so as to avoid the situation where only the drum 202 telescopes and moves, but the waterway plate 207 remains in place when water is discharged, and the water directly falls on the ground without falling on the drum 202, or the scraper plate 205 and the dirt collecting trough 204 remain in place and do not scrape the dirty water on the drum 202, which greatly reduces the cleaning effect.

[0072] The second bracket 201 is also provided with a connecting member 203, and the second control assembly is connected to the drum assembly 2 through the connecting member 203. Of course, the drum assembly 2 also has other structures and components that all existing drum assemblies have, which will not be described in detail.

[0073] The guide rail mechanism is arranged between the first bracket 1 and the roller assembly 2. Under the guidance of the guide rail mechanism, the roller assembly 2 can move telescopically along the guide rail mechanism relative to the first bracket 1, so that the telescopic movement process of the roller assembly 2 is smoother and more stable. The extension direction of the guide rail mechanism is consistent with the telescopic direction of the roller assembly 2. The guide rail mechanism is arranged between the first bracket 1 and the roller assembly 2, 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 telescopically more stably relative to the first bracket 1.

[0074] The telescopic mechanism is used to control the telescopic movement of the roller assembly 2. The telescopic mechanism includes a first control assembly and a second control assembly. Both the first control assembly and the second control assembly can exert force on the roller assembly 2 to realize the telescopic movement of 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 bracket 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 bracket 1. In other words, by adjusting the magnitude of the force exerted by the first control assembly and the second control assembly on the roller assembly 2, the roller assembly 2 can be moved to the extended state under the control of the first control assembly, and the roller assembly 2 can also be moved to the retracted state under the control of the second control assembly.

[0075] The roller assembly 2 is telescopically movably arranged on the side of the first bracket 1 facing the surface to be cleaned, the first control assembly 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 assembly drives the roller assembly 2 to retract into the projection range of the first bracket 1 on the surface to be cleaned. In this embodiment, the bottom of the first bracket 1 is the side of the first bracket 1 facing the surface to be cleaned, the bottom of the first bracket 1 faces the surface to be cleaned, the roller assembly 2 is telescopically movably arranged at the bottom of the first bracket 1, and the surface to be cleaned is the ground. In the retracted state, the roller assembly 2 is entirely within the projection range of the first bracket 1 on the ground, the first control assembly can drive the roller assembly 2 to extend out of the projection range, and the second control assembly can drive the roller assembly 2 to retract into the projection range. In other words, when the roller assembly 2 is in the retracted state, the roller assembly 2 cannot be seen from the top view of the first bracket 1, and when the roller assembly 2 is in the extended state, at least part of the structure of the roller assembly 2 is placed outside the first bracket 1. This roller structure is suitable for cleaning equipment such as sweepers, which is conducive to simplifying the structural design, reducing the control difficulty, and facilitating maintenance, replacement and storage. In this embodiment, when the drum assembly 2 is in the retracted state, the outer edge of the drum assembly 2 is flush with the outer edge of the first bracket 1 .

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

[0077] In order to achieve relative sliding, the interior of the guide rail mechanism has a certain space, and the first control component is integrated into the interior of the guide rail mechanism, which fully utilizes the internal space of the guide rail mechanism. There is no need to separately configure a setting 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 matched, one of the first guide rail 801 and the second guide rail 802 is arranged on the bottom surface of the first bracket 1, and the other is arranged 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 are slidably matched, one of which 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). Guide rails of this material have self-lubricating properties, which can make the second guide rail 802 have less friction and smoother sliding process relative to the first guide rail 801.

[0080] like Figure 5-Figure 9 As shown, the first guide rail 801 is a semi-enclosed guide rail, the second guide rail 802 is disposed in 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, according to different configuration requirements, the first guide rail 801 may be disposed on the top surface of the second bracket 201 , while the second guide rail 802 is disposed on the bottom surface of the first bracket 1 .

[0082] Furthermore, the first control assembly includes a control member 5 , one end of the control member 5 is connected to the first guide rail 801 , and the other end of the control member 5 is connected to the second guide rail 802 . The control member 5 applies a pulling force to the roller assembly 2 along the extending 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. Fig. 9 As shown, the control member 5 is arranged in the accommodation space, so as to fully utilize the structural space. One end of the control member 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 bracket 1, and the second guide rail 802 is connected to the second bracket 201, the control member 5 can apply a pulling force along the extension direction to the roller assembly 2. Therefore, under the control of the control member 5, the roller assembly 2 can telescopically move relative to the first bracket 1.

[0084] like Figure 5-Figure 6As shown, specifically, both ends of the control member 5 have a connecting end 501 , and the connecting end 501 is a ring structure, so as to realize the connection between the control member 5 and the first guide rail 801 and the second guide rail 802 .

[0085] The second control assembly includes a telescopic driving member 3 and a pulling member 4. The telescopic driving member 3 is disposed on the first bracket 1. One end of the pulling member 4 is driven by the telescopic driving member 3, and the other end of the pulling member 4 is connected to the roller assembly 2. The telescopic driving member 3 is specifically a driving motor.

[0086] Specifically, a U-shaped groove is provided on the first bracket 1, and the pulling member 4 is provided on the first bracket 1 in a U-shaped form to make full use of the setting space on the first bracket 1. In addition, the pulling member 4 adopts a steel wire rope, and the steel wire rope is wound on a winding wheel, and the winding wheel is provided on the first bracket. One end of the pulling member 4 is connected to the output end of the telescopic driving member 3, and the other end of the pulling member 4 is connected to the connecting member 203. The telescopic driving member 3 is used to provide power so that the second control component can apply a force to the roller assembly 2. That is, one end of the pulling member 4 is driven by the telescopic driving 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 of the first control component on the roller assembly 2, the roller assembly 2 is driven to retract relative to the first bracket 1.

[0087] like Figure 3-Figure 4 As shown, Figure 3 The arrow a in the middle is the extension direction. Figure 4 The middle arrow b indicates the retracting direction. In this embodiment, the control member 5 is an elastic member, and when the roller assembly 2 is retracted relative to the first bracket 1, the control member 5 is in a stretched state. Specifically, the control member 5 is a tension spring, and when the telescopic driving member 3 is not working, the roller assembly 2 is subjected to the force of the tension spring and will maintain a normal extended state.

[0088] Specifically, when the roller assembly 2 is retracted relative to the first bracket 1, the control member 5 is in a stretched state, and the control member 5 can apply a pulling force to the roller assembly 2 to move in the extending direction. When the pulling member 4 is released, under the pulling force of the control member 5, the roller assembly 2 is extended relative to the first bracket 1 until it reaches the preset extended position. The pulling force value of the tension spring on the roller assembly 2 is variable. When the roller assembly 2 moves toward the preset retracted position, the pulling force value of the tension spring on the roller assembly 2 gradually increases, and when the roller assembly 2 moves toward the preset extended position, the pulling force value of the tension spring on the roller assembly 2 gradually decreases, but it is necessary to keep the roller assembly 2 at the preset extended position.

[0089] In addition, the telescopic structure further includes a telescopic in-place detection member 901 and a telescopic in-place detection column 902. When the telescopic in-place detection column 902 contacts the telescopic in-place detection member 901, the drum assembly 2 extends out or retracts into place.

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

[0091] In this embodiment, the control component 5 is arranged in 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, causing wear of the control component 5 and the guide rail mechanism, thereby ensuring the structural performance and service life of the control component 5 and the guide rail mechanism.

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

[0093] In order to further ensure that no sliding friction occurs between the control member 5 and the guide rail mechanism, the side wall of the control member 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 member 5 is parallel to the length direction of the guide rail mechanism, which can fully utilize the internal space of the guide rail mechanism, facilitate the installation of the control member 5, and help improve the performance of the mechanism.

[0095] Specifically, the length direction of the control member 5 is arranged parallel to the length direction (ie, the extension direction) of the first guide rail 801 and the second guide rail 802 to facilitate the installation of the control member 5 and to fully utilize the internal space of the guide rail mechanism.

[0096] Furthermore, the control member 5 is arranged centrally in the guide rail mechanism in the horizontal direction.

[0097] like Fig. 9 As shown, the horizontal direction is as shown by arrow c-c', the control member 5 is centrally arranged in the guide rail mechanism in the horizontal direction, the control member 5 does not contact the top wall of the first guide rail 801, the side wall and the bottom wall of the second guide rail 802, and the force direction of the control member 5 is parallel to the length direction of the guide rail mechanism. When the roller assembly 2 moves telescopically relative to the first bracket 1, the first guide rail 801 and the second guide rail 802 are prevented from being subjected to force in a direction perpendicular to the length direction (lateral direction) of the two, so that the force exerted by the control member 5 on the first guide rail 801 and the second guide rail 802 is more balanced and consistent, avoiding structural damage caused by uneven force, and improving the reliability and stability of the structure.

[0098] Further, 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. 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 is connected to the first guide rail and / or the second guide rail through the fixed end, thereby facilitating the connection of the control member with the first guide rail and / or the second guide rail and facilitating the installation of the structure.

[0099] like Figure 5-Figure 6 As shown, in this embodiment, the first guide rail 801 and the second guide rail 802 are both provided with a fixed end 6, the fixed end 6 is provided on the top wall inside the first guide rail 801 and facing the second guide rail 802, and the fixed end 6 is provided on the bottom wall inside the second guide rail 802 and facing the first guide rail 801. The two fixed ends 6 are provided at matching positions, 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, and the control member 5 is centrally provided in 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 member 5 and the fixed end 6, simplify the operation, and ensure the firmness of the connection.

[0101] In other embodiments, according to different setting 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 component 5 is parallel to the extension direction of the guide rail mechanism, and the side wall of the control component 5 does not contact the inner wall of the guide rail mechanism, and the control component 5 is centered in the guide rail mechanism in the horizontal direction.

[0102] Furthermore, the guide rail mechanism further includes a plurality of protrusions, which are arranged at the contact position between the first guide rail 801 and the second guide rail 802 .

[0103] By providing a plurality of protrusions at the contact position of the first guide rail 801 and the second guide rail 802, the contact area between the first guide rail 801 and the second guide rail 802 can be reduced, and the friction between the first guide rail 801 and the second guide rail 802 can be reduced, so that the relative sliding between the first guide rail 801 and the second guide rail 802 is 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. There are multiple bottom protrusions 803, and the multiple bottom protrusions 803 are arranged at intervals along the length direction of the second guide rail 802. The side protrusions 804 are disposed on the two side walls of the second guide rail 802, and the side protrusions 804 are continuously disposed along the length direction of the second guide rail 802. The top protrusion 805 is disposed at the top positions of the two side walls of the second guide rail 802, and the top protrusions 805 are continuously disposed along the length direction of the second guide rail 802.

[0105] In addition, two rollers 202 are provided in the roller assembly 2. Between the two rollers 202, the top surface of the second bracket 201 has a recessed structure. One of the first guide rail 801 and the second guide rail 802 is provided in the recessed portion, which can save vertical installation space, make the roller structure more compact as a whole, and help optimize the size of the overall product. In this embodiment, the second guide rail 802 is provided at the recessed structure.

[0106] like Figure 10-12 As shown, this embodiment also provides a mopping system, including a clean water tank 10, a dirty water tank 11 and the drum structure as described above, wherein the clean water tank 10 is disposed above the first bracket 1, and the dirty water tank 11 is disposed near the drum 202 of the drum assembly 2.

[0107] The entire mopping system is located at the rear of the cleaning device and below the main body 7. The structure of the mopping system is, from top to bottom, a clean water tank 10, a first bracket 1, a guide rail mechanism, a second bracket 201, a waterway plate 207, a scraper plate 205, and a dirt collection tank 204. The dirt collection tank 204 is provided with a roller 202 on both sides, and a sewage tank 11 is located at the rear of the roller assembly 2. The water in the clean water tank 10 is connected to the waterway plate water inlet pipe 208 through a water pump and other components, and flows evenly to the roller 202 through the waterway plate 207. The scraper plate 205 scrapes and washes the roller 202, and the scraped sewage is recovered by the dirt collection tank 204. The sewage in the dirt collection tank 204 flows to the whole machine sewage tank 11 through the sewage extraction pipe 206, so that the user can clean it in a centralized manner later.

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

[0109] When cleaning corner areas such as the wall, the force of the second control component on the roller component 2 is smaller than the force of the first control component on the roller component 2. The first control component drives the roller component 2 to extend relative to the first bracket 1, so that the roller component 2 is not affected by the position of the first bracket 1 and can be closer to the corner area, so as to achieve "edge cleaning" to effectively clean the corner area, significantly reduce the cleaning blind area, and greatly improve the cleaning effect. When the corner area does not need to be cleaned (that is, when the roller component 2 needs to be reset), the force of the second control component on the roller component 2 is greater than the force of the first control component on the roller component 2, and the second control component drives the roller component 2 to retract relative to the first bracket 1. Through the coordinated cooperation of the first control component and the second control component, the position of the roller component 2 can be adjusted, so that the controllability of the roller component 2 is stronger, and the telescopic movement process of the roller component 2 is smoother. This roller structure not only has a better cleaning effect, but also a better user experience.

[0110] Of course, the cleaning device also has other structural components that all existing cleaning devices have, which will not be described in detail here.

[0111] Furthermore, the cleaning device is one of a sweeper, a mop, a scrubber and a cleaning robot, for example, a sweeper robot, a handheld scrubber and a fully automatic scrubber robot, etc. In this embodiment, the cleaning device is a cleaning robot.

[0112] The working process of the cleaning device of this embodiment is described below in conjunction with the accompanying drawings:

[0113] When the cleaning device starts cleaning, it will first clean the edges of the area and then clean the interior of the area in a bow shape. When the telescopic drive member 3 rotates forward, the pulling member 4 will be retracted, pulling the second bracket 201 to overcome the tension of the tension spring to do work. When the telescopic in-place detection column 902 on the second bracket 201 triggers the signal of the telescopic in-place detection member 901, the telescopic drive member 3 stops working. Because the motor itself has a self-locking force, the pulling member 4 is still in a tightened state, and the second bracket 201 remains in a retracted state for cleaning. This is suitable for the case where the whole machine is cleaning the internal area (not cleaning along the edges).

[0114] When the whole machine is cleaning along the edge, the telescopic drive member 3 is controlled to reverse for a certain time T1, and T1 should be less than the time taken for the winding wheel to rotate in the opposite direction, so as to prevent the pulling member 4 from being reversely wound on the winding wheel after being released. The purpose of the reversal is to unlock the pulling member 4. When reversing, the telescopic drive member 3 loses the locking force on the pulling member 4, and under the force of the tension spring, the second bracket 201 will be reset to the extended state. This state is suitable for cleaning blind spots such as walls, corners of tables and chairs along the edge.

[0115] Although the embodiments of the present invention have been described in conjunction with 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 are all within the scope defined by the appended claims.

Claims

1. A drum structure, characterized in that: Applicable to a cleaning device, the cleaning device comprises a first bracket (1), the roller structure is telescopically arranged at the bottom of the first bracket (1), and the roller structure comprises: Roller assembly (2); A guide rail mechanism is arranged between the first bracket (1) and the roller assembly (2), and the roller assembly (2) is telescopically movable relative to the first bracket (1) via the guide rail mechanism; The telescopic mechanism comprises a first control component and a second control component for applying a force to the roller component (2), wherein the first control component is arranged on the guide rail mechanism, and the second control component is arranged on the first bracket (1); when the force applied by the second control component to the roller component (2) is less than the force applied by the first control component to the roller component (2), the first control component drives the roller component (2) to extend relative to the first bracket (1); and when the force applied by the second control component to the roller component (2) is greater than the force applied by the first control component to the roller component (2), the second control component drives the roller component (2) to retract relative to the first bracket (1).

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

3. The drum structure according to claim 2, characterized in that: The guide rail mechanism comprises a first guide rail (801) and a second guide rail (802) that are slidably matched, one of the first guide rail (801) and the second guide rail (802) being arranged on the bottom surface of the first bracket (1), and the other being arranged on the top surface of the roller assembly (2).

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

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

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

7. The drum structure according to claim 6, characterized in that: The control member (5) is arranged centrally in the guide rail mechanism in the horizontal direction.

8. The drum 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 an end of the control member (5) is connected to the first guide rail (801) and / or the second guide rail (802) via the fixed end (6).

9. The drum structure according to any one of claims 4 to 8, characterized in that: The guide rail mechanism further comprises a plurality of protrusions, wherein the protrusions are arranged at the contact position between the first guide rail (801) and the second guide rail (802).

10. A mopping system, characterized in that: It comprises a clean water tank (10), a dirty water tank (11) and a drum structure as described in any one of claims 1 to 9, wherein the clean water tank (10) is arranged above the first bracket (1), and the dirty water tank (11) is arranged close to the drum (202) of the drum assembly (2).

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

12. The cleaning device according to claim 11, characterized in that The cleaning device is one of a sweeper, a mop, a scrubber and a cleaning robot.

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