Rolling brush structure, control system and cleaning equipment

Abstract

The utility model relates to the field of electrical equipment, and discloses a rolling brush structure, a control system and cleaning equipment, the rolling brush structure can effectively clean corner areas, obviously reduce cleaning blind areas, improve the cleaning effect, realize active control of a rolling brush assembly, reduce the jamming phenomenon and reduce the damage of the rolling brush assembly caused by collision. The rolling brush structure comprises a shell, a rolling brush assembly and a movement control mechanism, the rolling brush assembly is movably arranged on the shell, the movement control mechanism is arranged on the shell, and the movement control mechanism comprises a first control assembly and a second control assembly which are used for applying acting force to the rolling brush assembly. When the acting force of the second control assembly on the rolling brush assembly is smaller than that of the first control assembly on the rolling brush assembly, the first control assembly drives the rolling brush assembly to stretch out relative to the shell, and when the acting force of the second control assembly on the rolling brush assembly is larger than that of the first control assembly on the rolling brush assembly, the first control assembly drives the rolling brush assembly to stretch out relative to the shell. The second control assembly drives the rolling brush assembly to retract relative to the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and in particular to a roller brush structure, a control 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] The existing cleaning equipment mainly includes a body and a roller brush assembly. The roller brush assembly is fixed at the bottom of the body, and usually the roller brush assembly does not exceed the horizontal size range of the body. As a result, when the cleaning equipment cleans corner areas such as walls, the roller brush assembly cannot clean close to the edge, resulting in a cleaning blind spot, leading to poor cleaning effect. Over time, dust is prone to accumulate in the corner areas, and the user experience is poor. Utility Model Content

[0004] In view of this, the utility model provides a roller brush structure, a control system and a cleaning device to solve the problems of blind spots in cleaning, poor cleaning effect in corner areas and poor user experience in existing cleaning devices.

[0005] In a first aspect, the utility model provides a roller brush structure, comprising:

[0006] case;

[0007] A roller brush assembly is movably disposed on the housing;

[0008] The mobile control mechanism is arranged on the shell, and the mobile control mechanism includes a first control component and a second control component. The first control component drives the roller brush component to extend relative to the shell, and the second control component drives the roller brush component to retract relative to the shell.

[0009] Beneficial effect: The roller brush structure of the utility model can conveniently control the extension or retraction of the roller brush assembly relative to the housing by setting a mobile control mechanism. When cleaning corner areas such as the wall, the force of the second control component on the roller brush assembly is smaller than the force of the first control component on the roller brush assembly. The first control component drives the roller brush assembly to extend relative to the housing, so that the roller brush assembly is not affected by the position of the housing 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 brush assembly needs to be reset), the force of the second control component on the roller brush assembly is greater than the force of the first control component on the roller brush assembly, and the second control component drives the roller brush assembly to retract relative to the housing. Through the coordinated cooperation of the first control component and the second control component, the position of the roller brush assembly can be adjusted, so that the controllability of the roller brush assembly is stronger, and the telescopic movement process of the roller brush assembly is smoother. The user can actively adjust the position of the roller brush assembly according to the current use needs. The roller brush structure of the utility model not only has a better cleaning effect, but also a better user experience.

[0010] In an optional embodiment, the direction in which the first control component applies force to the roller brush assembly is parallel to the extension direction of the roller brush assembly, and / or the direction in which the second control component applies force to the roller brush assembly is parallel to the retraction direction of the roller brush assembly.

[0011] Beneficial effects: In the roller brush structure of the utility model, the force direction of the roller brush assembly by the first control component is parallel to the extension direction of the roller brush assembly, so that when the first control component applies force to the roller brush assembly, the force is all used to drive the roller brush assembly to move, without any force component in other directions, and / or the force direction of the roller brush assembly by the second control component is parallel to the extension direction of the roller brush assembly, so that when the second control component applies force to the roller brush assembly, the force is all used to drive the roller brush assembly to move, without any force component in other directions. The above-mentioned arrangement makes it more labor-saving and efficient when the mobile control mechanism drives the roller brush assembly to move, and is also conducive to reducing the volume of the mobile control mechanism, making the roller brush structure compact and convenient for layout.

[0012] In an optional embodiment, the roller brush assembly is movably disposed on a side of the shell facing the surface to be cleaned, the first control component drives the roller brush assembly to extend out of the projection range of the shell on the surface to be cleaned, and the second control component drives the roller brush assembly to retract into the projection range of the shell on the surface to be cleaned.

[0013] Beneficial effect: In the roller brush structure of the utility model, the roller brush assembly is movably arranged on the side of the shell facing the surface to be cleaned, the first control assembly drives the roller brush assembly to extend out of the projection range of the shell on the surface to be cleaned, and the second control assembly drives the roller brush assembly to retract into the projection range of the shell on the surface to be cleaned, that is, the roller brush assembly is arranged outside the shell, or at least part of the structure of the roller brush assembly is arranged outside the shell. This roller brush structure is suitable for cleaning equipment such as sweepers, which is conducive to simplifying the structural design, reducing the difficulty of control, and facilitating maintenance, replacement and storage.

[0014] In an optional embodiment, the second control component includes a driving member and a pulling member, the driving member is disposed on the shell, one end of the pulling member is driven by the driving member, and the other end of the pulling member is connected to the roller brush assembly.

[0015] Beneficial effects: The roller brush structure of the utility model, the second control member includes a driving member and a pulling member, the driving member can drive the pulling member, the other end of the pulling member is connected to the roller brush assembly and can pull the roller brush assembly to move, thereby realizing the retraction process. This second control component can actively drive the roller brush assembly to retract into the shell, thereby making the roller brush structure more controllable and convenient for user operation. At the same time, the structure is relatively simple and easy to set up.

[0016] In an optional embodiment, at least the portion of the pulling member connected to the roller brush assembly is arranged parallel to the retraction direction of the roller brush assembly.

[0017] Beneficial effect: In the roller brush structure of the utility model, at least the part of the pulling member connected to the roller brush assembly is arranged parallel to the retraction direction of the roller brush assembly, that is, the pulling member can be arranged parallel to the retraction direction of the roller brush assembly as a whole, or the part of the pulling member connected to the roller brush assembly is arranged parallel to the retraction direction of the roller brush assembly. The setting method of this pulling member is flexible and can be selected according to the layout space. On the one hand, it can ensure that the force application process of the roller brush assembly is labor-saving and efficient. On the other hand, it is also conducive to compact structure and optimized structural design.

[0018] In an optional embodiment, the second control component further includes a first transmission member, a portion of the pulling member away from the roller brush assembly is wound around the first transmission member, and the driving member drives the first transmission member to rotate to release or wind up the pulling member.

[0019] Beneficial effect: In the roller brush structure of the utility model, the part of the pulling member away from the roller brush assembly is wound around the first transmission member, which can save setting space. Under the driving action of the driving member, the first transmission member rotates, the pulling member is wound, and then drives the roller brush assembly to realize the retraction process of the roller brush assembly. At the same time, the first transmission member rotates, and when the pulling member is released, it assists (does not hinder) the extension process of the roller brush assembly. The control process of this second control component is simple, which is conducive to simplifying the structural design.

[0020] In an optional embodiment, the second control component further includes a protective cover, the protective cover is disposed on the shell, and the pulling member is inserted into the protective cover.

[0021] Beneficial effects: In the roller brush structure of the utility model, the second control component also includes a protective cover, and the pulling member is inserted into the protective cover. The protective cover can effectively protect the pulling member, reduce the impact of external structures on the pulling member, improve the working reliability of the pulling member, and ensure that the second control component drives the roller brush assembly to retract relative to the shell in a stable process.

[0022] In an optional embodiment, the second control component further includes a second transmission member, the second transmission member is engaged with the output shaft of the driving member, and the second transmission member is also engaged with the first transmission member.

[0023] Beneficial effect: In the roller brush structure of the utility model, the second control component also includes a second transmission member, and the transmission of driving force is achieved through the engagement of the second transmission member with the output shaft of the driving member and the first transmission member respectively. This control component has a simple structure and is easy to set up, which is conducive to saving setting space and can achieve efficient transmission of driving force.

[0024] In an optional embodiment, the first control assembly includes a control member, which is disposed on the shell and applies a pulling force or a pushing force to the roller brush assembly along a direction in which the roller brush assembly extends.

[0025] Beneficial effects: In the roller brush structure of the utility model, the first control component includes a control member. According to different setting requirements, the control member can apply a pulling force or a pushing force along the extending direction to the roller brush assembly, thereby improving the flexibility of the structural setting.

[0026] In an optional embodiment, the roller brush assembly includes a connecting member, one end of the connecting member is connected to the pulling member, and the other end is connected to the control member, the forces exerted on the roller brush assembly by the first control member and the second control member act on the connecting member, and when the force exerted on the connecting member by the second control member is less than the force exerted on the connecting member by the first control member, the first control member drives the roller brush assembly to extend relative to the shell through the connecting member, and when the force exerted on the connecting member by the second control member is greater than the force exerted on the connecting member by the first control member, the second control member drives the roller brush assembly to retract relative to the shell through the connecting member.

[0027] Beneficial effects: The roller brush structure of the utility model realizes the connection between the first control component, the second control component and the roller brush assembly through the connecting piece of the roller brush assembly, so that the first control component and the second control component can apply force to the roller brush assembly.

[0028] In an optional embodiment, the control member continuously applies a pulling force along the extending direction to the roller brush assembly.

[0029] Beneficial effect: In the roller brush structure of the utility model, the control part continuously applies a pulling force to the roller brush assembly in the extension direction. When the roller brush assembly needs to be retracted into the housing, the second control part needs to overcome the pulling force of the control part on the roller brush assembly and drive the roller brush assembly to move in the retraction direction. When the roller brush assembly needs to be extended out of the housing, it is only necessary to control the force of the second control part on the roller brush assembly to disappear or the force of the second control part on the roller brush assembly is smaller than the pulling force of the control part on the roller brush assembly. By continuously applying a pulling force to the roller brush assembly, the movement process (especially the retraction process) of the roller brush assembly can be made smoother, and the retraction process is reduced due to the disappearance or reduction of the force of the first control part, resulting in very rapid structural collision, thereby reducing the matching noise between structures.

[0030] In an optional embodiment, the control member is an elastic member, and when the roller brush assembly is retracted relative to the shell, the control member is in a stretched state.

[0031] Beneficial effect: In the roller brush structure of the utility model, when the roller brush assembly is retracted relative to the shell, the control member is in a stretched state to apply tension to the roller brush assembly. The control member can be optionally a tension spring. This structure is simple and reliable, and is conducive to the stable control of the roller brush assembly by the first control component.

[0032] In an optional embodiment, the control member applies a thrust to the roller brush assembly along the extending direction, and one end of the control member abuts against the roller brush assembly, and the other end abuts against the shell.

[0033] Beneficial effect: In the roller brush structure of the utility model, the control component applies a thrust along the extending direction to the roller brush assembly, and the roller brush assembly is driven by the thrust to move along the extending direction and then extend out of the shell. This method of controlling the movement of the roller brush assembly by thrust is convenient for structural layout and is conducive to making full use of the structural space.

[0034] In an optional embodiment, the control member is an elastic member, and when the roller brush assembly is retracted relative to the shell, the control member is in a compressed state.

[0035] Beneficial effect: In the roller brush structure of the utility model, when the roller brush assembly is retracted relative to the shell, the control member is in a compressed state to apply thrust to the roller brush assembly. The control member can be optionally a compression spring. This structure is simple and reliable, and is conducive to the stable control of the roller brush assembly by the first control component.

[0036] In an optional embodiment, a buffer member is further included, and the buffer member is arranged at a position where the roller brush assembly contacts the shell when the roller brush assembly extends and / or retracts relative to the shell.

[0037] Beneficial effects: The roller brush structure of the utility model, by arranging a buffer part at the position where the roller brush assembly contacts the shell, can buffer the impact strength of the roller brush assembly on the shell when it is extended and retracted into place, thereby protecting the structure, extending the service life, reducing collision noise, and improving user experience.

[0038] In a second aspect, the utility model further provides a control system for controlling the above-mentioned roller brush structure, the control system comprising:

[0039] A first position detection member is disposed on the housing of the roller brush structure, and the first position detection member is used to detect whether the roller brush assembly of the roller brush structure is extended to a preset extension position relative to the housing;

[0040] A second position detection member, disposed on the housing, for detecting whether the roller brush assembly is retracted to a preset retracted position relative to the housing;

[0041] A control element, wherein the signal input end of the control element is electrically connected to the signal output end of the first position detection element and the signal output end of the second position detection element, and the signal output end of the control element is electrically connected to the signal input end of the driving element of the second control component in the roller brush assembly.

[0042] Beneficial effects: The control system of the utility model can detect whether the roller brush assembly is extended to a preset extended position (i.e., extended to the full position) through the first position detection member, and whether the roller brush assembly is retracted to a preset retracted position (i.e., retracted to the full position) through the second position detection member, so that the whole machine can start subsequent programs, such as starting cleaning, etc. This control system can make the whole machine control more intelligent and the user experience better.

[0043] In a third aspect, the utility model further provides a cleaning device, including the above-mentioned roller brush structure, or including the above-mentioned control system.

[0044] Because the cleaning device includes the above-mentioned roller brush structure or includes the above-mentioned control system, it has the same beneficial effects as the roller brush structure or control system, which will not be repeated here.

[0045] In an optional embodiment, the cleaning device is one of a sweeper, a mop and a scrubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 This is an exploded schematic diagram of the roller brush structure of the utility model;

[0048] Figure 2 It is a schematic diagram of the roller brush structure of the utility model (when the roller brush assembly is retracted into the housing);

[0049] Figure 3 It is a schematic diagram of the roller brush structure of the utility model (when the roller brush assembly extends out of the housing);

[0050] Figure 4 It is a schematic diagram of the housing (including the mounting box) in the roller brush structure of the utility model;

[0051] Figure 5 It is a schematic diagram of another angle of the roller brush housing (including the mounting box) in the roller brush structure of the utility model;

[0052] Figure 6 It is a schematic diagram of a roller brush assembly in the roller brush structure of the utility model;

[0053] Figure 7 This is an exploded schematic diagram of the installation box in the roller brush structure of the utility model;

[0054] Figure 8 It is a schematic diagram of the installation box in the roller brush structure of the utility model;

[0055] Fig. 9 It is a schematic diagram of the force direction of the roller brush structure of the utility model (when the roller brush assembly extends out of the housing);

[0056] Fig.10 It is a schematic diagram of the force direction of the roller brush structure of the utility model (when the roller brush assembly is retracted into the housing);

[0057] Fig.11 This is a schematic diagram of the structure of the roller brush structure (buffer) of the utility model;

[0058] Fig.12 It is a schematic diagram of another embodiment of the roller brush structure of the utility model;

[0059] Fig.13 It is a schematic diagram of another embodiment of the roller brush structure of the utility model.

[0060] Description of reference numerals:

[0061] 1. Shell;

[0062] 2. Roller brush assembly; 201. Roller brush housing; 202. Roller brush; 203. Water collecting tank; 204. Connector; 2041. First groove; 2042. Second groove; 2043. Tension spring fixing buckle;

[0063] 3. Driving member; 301. Motor gear;

[0064] 4. Pulling piece;

[0065] 5. First transmission member; 501. First transmission member shaft;

[0066] 6. Protective cover;

[0067] 7. Second transmission member; 701. Second transmission member shaft; 702. First meshing portion; 703. Second meshing portion;

[0068] 8. Control part; 801. Control part shaft;

[0069] 9. Buffer parts;

[0070] 10. A first position detection member;

[0071] 11. A second position detection member;

[0072] 12. Installation box; 1201. First box body part; 1202. Second box body part; 1203. Third box body part;

[0073] 13. Guiding mechanism;

[0074] 14. Compression spring;

[0075] 15. Tension spring. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0077] At present, the roller brush assembly of the cleaning equipment is mostly fixed at the bottom of the shell, and the roller brush assembly is placed within the projection range of the shell on the ground, and the outer edge of the roller brush assembly is at a certain distance from the outer edge of the shell. When cleaning corner areas, such as the wall, the shell first contacts the wall, and the roller brush assembly cannot clean close to the wall, resulting in long-term dust accumulation at the wall, affecting the cleaning effect of the cleaning equipment.

[0078] Based on this, the utility model provides a roller brush structure, a control system and a cleaning device.

[0079] Combine the following Figure 1-Figure 13 , describing the embodiments of the roller brush structure, control system and cleaning equipment of the utility model.

[0080] According to an embodiment of the utility model, in a first aspect, a roller brush structure is provided, comprising: a shell 1, a roller brush assembly 2 and a movable control mechanism, the roller brush assembly 2 is movably arranged on the shell 1, the movable control mechanism is arranged on the shell 1, the movable control mechanism comprises a first control assembly and a second control assembly, when the force exerted by the second control assembly on the roller brush assembly 2 is less than the force exerted by the first control assembly on the roller brush assembly 2, the first control assembly drives the roller brush assembly 2 to extend relative to the shell 1, and when the force exerted by the second control assembly on the roller brush assembly 2 is greater than the force exerted by the first control assembly on the roller brush assembly 2, the second control assembly drives the roller brush assembly 2 to retract relative to the shell 1.

[0081] This roller brush structure can conveniently control the extension or retraction of the roller brush assembly 2 relative to the housing 1 by setting a mobile control mechanism. When cleaning corner areas such as the wall, the force of the second control component on the roller brush assembly 2 is smaller than the force of the first control component on the roller brush assembly 2. The first control component drives the roller brush assembly 2 to extend relative to the housing 1, so that the roller brush assembly 2 is not affected by the position of the housing 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 brush assembly needs to be reset), the force of the second control component on the roller brush assembly 2 is greater than the force of the first control component on the roller brush assembly 2, and the second control component drives the roller brush assembly 2 to retract relative to the housing 1. Through the coordinated cooperation of the first control component and the second control component, the position of the roller brush assembly 2 can be adjusted, so that the controllability of the roller brush assembly 2 is stronger, and the telescopic movement process of the roller brush assembly 2 is smoother. The user can actively adjust the position of the roller brush assembly 2 according to the current use needs, which not only has a better cleaning effect, but also a better user experience.

[0082] The housing 1 is the main structure of the roller brush structure, has a certain structural strength, and can support and set the roller brush assembly 2 and the movement control mechanism and other structures. Usually, the housing 1 is made of waterproof, corrosion-resistant and high-strength materials to ensure the service life of the roller brush structure as a whole. Figure 1-4 As shown, the housing 1 is a long strip-like structure as a whole, and is provided with a number of mounting positions for arranging the relevant structures or components or electrical components of the cleaning device. Figure 4Taking the perspective as an example, the bottom of the housing 1 faces the surface to be cleaned. According to the application scenarios of different cleaning devices, the surface to be cleaned may be the ground, the wall, etc. In this embodiment, the surface to be cleaned is the ground as an example.

[0083] The roller brush assembly 2 is movably arranged on the housing 1. The roller brush assembly 2 is mainly used to clean the surface to be cleaned. When working, the roller brush assembly 2 is in direct contact with the surface to be cleaned to realize the cleaning process. The roller brush assembly 2 is arranged on the housing 1 and can be moved relative to the housing 1, that is, the position of the roller brush assembly 2 is not fixed relative to the housing 1 and the position can be changed. The roller brush assembly 2 can be extended relative to the housing 1. When the roller brush assembly 2 is extended to a preset extended position (extended in place), the roller brush assembly 2 is in an extended state. Correspondingly, the roller brush assembly 2 can be retracted relative to the housing 1. When the roller brush assembly 2 is retracted to a preset retracted position (retracted in place), the roller brush assembly 2 is in a retracted state. In other words, the roller brush assembly 2 can reciprocate between the corresponding positions of the extended state and the retracted state, that is, the roller brush assembly 2 can move from the retracted state to the extended state, and can also move from the extended state to the retracted state.

[0084] like Figure 6 As shown, the roller brush assembly 2 is in a strip-like structure as a whole, and the roller brush assembly 2 includes a roller brush housing 201, a roller brush 202 and a water collecting tank 203. The roller brush housing 201 is movably connected to the housing 1, and the roller brush housing 201 has a certain structural strength, and can support and set structural components such as the roller brush 202 and the water collecting tank 203. The roller brush 202 is arranged on the side of the roller brush housing 201 facing the surface to be cleaned. The number of roller brushes 202 is selected according to design requirements, and 1, 2, 3 or other roller brushes 202 can be set. When working, the roller brush 202 can roll to clean the surface to be cleaned. The water collecting tank 203 is arranged on the roller brush housing 201. In this embodiment, the water collecting tank 203 and the roller brush 202 are arranged on the same side of the roller brush housing 201, and the water collecting tank 203 is used to collect sewage. In addition, a connecting piece 204 is also provided on the roller brush housing 201, and the first control assembly and the second control assembly are both connected to the roller brush assembly 2 through the connecting piece 204. Of course, the roller brush assembly 2 also has other structures and components that all existing roller brush assemblies have, which will not be described in detail.

[0085] The mobile control mechanism is arranged on the housing 1, and the mobile control mechanism is used to control the movement of the roller brush assembly 2. The mobile control mechanism includes a first control component and a second control component, and the first control component and the second control component can both apply force to the roller brush assembly 2 to realize the movement process of the roller brush assembly 2. When the force applied by the second control component to the roller brush assembly 2 is less than the force applied by the first control component to the roller brush assembly 2, the first control component drives the roller brush assembly 2 to extend relative to the housing 1, and when the force applied by the second control component to the roller brush assembly 2 is greater than the force applied by the first control component to the roller brush assembly 2, the second control component drives the roller brush assembly 2 to retract relative to the housing 1. That is to say, by adjusting the force applied by the first control component and the second control component to the roller brush assembly 2, the roller brush assembly 2 can be moved to the position of the extended state under the control of the first control component, and the roller brush assembly 2 can also be moved to the position of the retracted state under the control of the second control component. By adjusting the force applied by the first control component and the second control component to the roller brush assembly 2, the roller brush assembly 2 can be actively controlled, so that the user can adjust the position of the roller brush assembly 2 as needed, which is convenient for cleaning operation and conducive to improving the cleaning effect.

[0086] The housing 1 is provided with an installation box 12, which has an installation space inside. Part of the structure of the mobile control mechanism is arranged in the installation box 12, and the installation box 12 can be opened and closed to protect the mechanism arranged inside. The installation box 12 is surrounded by a first box body part 1201, a second box body part 1202 and a third box body part 1203, and an internal installation space is formed. In this embodiment, the installation box 12 is arranged at a position close to the end of the housing 1 and close to the extended end of the roller brush assembly 2 for easy structural arrangement.

[0087] Furthermore, the force direction of the first control component on the roller brush assembly 2 is parallel to the extension direction of the roller brush assembly 2, and / or the force direction of the second control component on the roller brush assembly 2 is parallel to the retraction direction of the roller brush assembly 2.

[0088] In this embodiment, the first control component can apply a force to the roller brush component 2. When the force applied by the second control component to the roller brush component 2 is less than the force applied by the first control component to the roller brush component 2, the first control component drives the roller brush component 2 to extend relative to the housing 1. The force applied by the first control component to the roller brush component 2 is parallel to the extension direction of the roller brush component 2. The extension direction is as follows: Figure 2 and Figure 3As shown by arrow a, so that the force exerted by the first control component on the brush roller assembly 2 is all used to drive the brush roller assembly 2 to move, without other component forces in other directions. And, the second control component can exert a force on the brush roller assembly 2. When the force exerted by the second control component on the brush roller assembly 2 is greater than the force exerted by the first control component on the brush roller assembly 2, the second control component drives the brush roller assembly 2 to retract relative to the housing 1. The force application direction of the second control component on the brush roller assembly 2 is arranged parallel to the retraction direction of the brush roller assembly 2. The retraction direction is as Figure 2 and Figure 3 shown by arrow b in, so that the force exerted by the second control component on the brush roller assembly 2 is all used to drive the brush roller assembly 2 to move, without other component forces in other directions, thereby improving the control efficiency, achieving the purpose of labor saving and high efficiency, and at the same time being beneficial to reducing the volume of the movement control mechanism, making the brush roller structure compact and facilitating layout.

[0089] In this embodiment, the extending direction of the brush roller assembly 2 is opposite to the retraction direction. Therefore, the force application direction of the first control component on the brush roller assembly 2 is also opposite to the force application direction of the second control component on the brush roller assembly 2.

[0090] In other embodiments, in order to meet different setting requirements, the force application direction of the first control component on the brush roller assembly 2 can be parallel to the extending direction of the brush roller assembly 2, while the force application direction of the second control component on the brush roller assembly 2 is not parallel to the retraction direction of the brush roller assembly 2. Of course, at this time, the force application direction of the second control component on the brush roller assembly 2 cannot be perpendicular to the retraction direction of the brush roller assembly 2. The force exerted by the second control component on the brush roller assembly 2 needs to have a component force parallel to and along the retraction direction. As long as it can be ensured that the first control component can drive the brush roller assembly 2 to extend relative to the housing 1, and the second control component can drive the brush roller assembly 2 to retract relative to the housing 1. Of course, it is also possible that the force application direction of the first control component on the brush roller assembly 2 is not parallel to the extending direction of the brush roller assembly 2, while the force application direction of the second control component on the brush roller assembly 2 is parallel to the retraction direction of the brush roller assembly 2. Of course, at this time, the force application direction of the first control component on the brush roller assembly 2 cannot be perpendicular to the extending direction of the brush roller assembly 2. The force exerted by the first control component on the brush roller assembly 2 needs to have a component force parallel to and along the extending direction. As long as it can be ensured that the first control component can drive the brush roller assembly 2 to extend relative to the housing 1, and the second control component can drive the brush roller assembly 2 to retract relative to the housing 1.

[0091] In this embodiment, when the brush roller assembly 2 reaches the preset extended position, the length of the brush roller assembly 2 extending out of the housing 1 is L. The value range of L is 0mm < L < 20mm. The length L can be selected as 5mm, 7mm, 10mm, 16mm, etc.

[0092] Furthermore, the roller brush assembly 2 is movably arranged on the side of the shell 1 facing the surface to be cleaned, the first control component drives the roller brush assembly 2 to extend out of the projection range of the shell 1 on the surface to be cleaned, and the second control component drives the roller brush assembly 2 to retract into the projection range of the shell 1 on the surface to be cleaned.

[0093] In this embodiment, the bottom of the shell 1 is the side of the shell 1 facing the surface to be cleaned, the bottom of the shell 1 faces the surface to be cleaned, the roller brush assembly 2 is movably arranged at the bottom of the shell 1, and the surface to be cleaned is the ground. In the retracted state, the roller brush assembly 2 is entirely within the projection range of the shell 1 on the ground, the first control assembly can drive the roller brush assembly 2 to extend out of the projection range, and the second control assembly can drive the roller brush assembly 2 to retract into the projection range. In other words, when the roller brush assembly 2 is in the retracted state, the roller brush assembly 2 cannot be seen from the top view of the shell 1, and when the roller brush assembly 2 is in the extended state, at least part of the structure of the roller brush assembly 2 is placed outside the shell 1. This roller brush 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 roller brush assembly 2 is in the retracted state, the outer edge of the roller brush assembly 2 is flush with the outer edge of the shell 1.

[0094] Furthermore, the first control assembly includes a control member 8 , which is disposed on the housing 1 , and applies a pulling force or a pushing force to the roller brush assembly 2 along the extending direction of the roller brush assembly 2 .

[0095] According to different design requirements, the control component 8 can apply a pulling force to the roller brush assembly 2 along the extending direction of the roller brush assembly 2, or it can apply a pushing force to the roller brush assembly 2 along the extending direction of the roller brush assembly 2. As long as the control component 8 can drive the roller brush assembly 2 to extend relative to the shell 1, the design flexibility is high.

[0096] In this embodiment, the control member 8 applies a pulling force along the extending direction to the roller brush assembly 2. The control member 8 is arranged on the shell 1, and the control member 8 has a force applying end, which is connected to the roller brush assembly 2. The control member 8 applies a pulling force to the roller brush assembly 2 through the force applying end.

[0097] Furthermore, the control member 8 continuously applies a pulling force to the roller brush assembly 2 in the extension direction. That is to say, no matter what position the roller brush assembly 2 is in, the pulling force of the control member 8 on the roller brush assembly 2 is uniform and consistent. When the roller brush assembly 2 needs to be retracted into the housing 1, the second control member needs to overcome the pulling force of the control member 8 on the roller brush assembly 2 (the force of the second control member on the roller brush assembly 2 is greater than the force of the first control member on the roller brush assembly 2), and drive the roller brush assembly 2 to move in the retraction direction. When the roller brush assembly 2 needs to be extended out of the housing, it is sufficient that the force of the second control member on the roller brush assembly 2 disappears or the force of the second control member on the roller brush assembly 2 is smaller than the pulling force of the control member 8 on the roller brush assembly 2. By continuously applying a pulling force to the roller brush assembly 2 by the control member 8, the movement process (especially the retraction process) of the roller brush assembly 2 can be made smoother, and the structural collision caused by the disappearance or reduction of the force of the first control member can be reduced, thereby reducing the matching noise between structures.

[0098] Specifically, Figure 7 As shown, the control member 8 is disposed in the installation box 12 and is disposed on the housing 1 through the installation box 12. The control member 8 adopts a coil spring and has a control member shaft 801. The control member shaft 801 is fixed to the inner wall of the installation box 12. The force-applying end of the control member 8 extends toward the roller brush assembly 2 and is connected to the roller brush assembly 2. In this embodiment, the axial direction of the control member shaft 801 is perpendicular to the extension direction of the roller brush assembly 2.

[0099] like Figure 5 As shown, a first groove 2041 and a second groove 2042 are formed on the connecting member 204 of the roller brush assembly 2, and the first groove 2041 and the second groove 2042 are arranged opposite to each other, and the openings of the first groove 2041 and the second groove 2042 face in opposite directions. The force-applying end of the control member 8 extends toward the connecting member 204, and the force-applying end is suitable for being embedded in and fixed in the first groove 2041, so that the force-applying end of the control member 8 is connected to the roller brush assembly 2. The coil spring can continuously apply tension to the roller brush assembly 2, and a part of the coil spring structure can extend out or enter the installation box 12 as the position of the roller brush assembly 2 changes.

[0100] In addition, when the roller brush assembly 2 is in an extended state, if the cleaning device encounters an obstacle and the external force (thrust in the retraction direction) exerted by the obstacle on the roller brush assembly 2 can overcome the pulling force of the control component 8 on the roller brush assembly 2, the roller brush assembly 2 can retract into the shell 1 under the action of the external force to achieve automatic obstacle avoidance.

[0101] Further, the second control assembly includes a driving member 3 and a pulling member 4. The driving member 3 is disposed on the housing 1. One end of the pulling member 4 is driven by the driving member 3, and the other end of the pulling member 4 is connected to the roller brush assembly 2. The driving member 3 is used to provide power so that the second control assembly can apply a force to the roller brush assembly 2. One end of the pulling member 4 is driven by the driving member 3, and the other end of the pulling member 4 is connected to the roller brush assembly 2. The pulling member 4 is used to pull the roller brush assembly 2, and by overcoming the force of the first control assembly on the roller brush assembly 2, the roller brush assembly 2 is driven to retract relative to the housing 1.

[0102] Specifically, the roller brush assembly 2 includes a connecting member 204, one end of which is connected to the pulling member 4, and the other end is connected to the control member 8. The forces exerted by the first control member and the second control member on the roller brush assembly 2 act on the connecting member 204. When the force exerted by the second control member on the connecting member 204 is less than the force exerted by the first control member on the connecting member 204, the first control member drives the roller brush assembly 2 to extend relative to the housing 1 through the connecting member 204. When the force exerted by the second control member on the connecting member 204 is greater than the force exerted by the first control member on the connecting member 204, the second control member drives the roller brush assembly 2 to retract relative to the housing 1 through the connecting member 204. Since the roller brush assembly 2 is provided with the connecting member 204, the first control member, the second control member and the roller brush assembly 2 are connected through the connecting member 204, so that the first control member and the second control member exert forces on the roller brush assembly 2.

[0103] Further, at least the portion of the pulling member 4 connected to the roller brush assembly 2 is arranged parallel to the retraction direction of the roller brush assembly 2. According to different design requirements, the pulling member 4 can be arranged parallel to the retraction direction of the roller brush assembly 2 as a whole, or the portion of the pulling member 4 connected to the roller brush assembly 2 is arranged parallel to the retraction direction of the roller brush assembly. This arrangement of the pulling member 4 is flexible and can be selected according to the layout space. On the one hand, it can ensure that the force application process of the roller brush assembly 2 is labor-saving and efficient, and on the other hand, it is also conducive to a compact structure and optimized structural design.

[0104] Further, the second control component also includes a first transmission member 5, and the part of the pulling member 4 away from the roller brush assembly 2 is wound around the first transmission member 5, and the driving member 3 drives the first transmission member 5 to rotate to release or wind up the pulling member 4. By winding the part of the pulling member 4 away from the roller brush assembly 2 around the first transmission member 5, it is possible to save the installation space, and the compact structure design, under the driving action of the driving member 3, the first transmission member 5 rotates, the pulling member 4 is released or wound, and then the pulling member 4 can be extended or shortened to achieve the retraction process of the roller brush assembly 2, and at the same time, the first transmission member 5 rotates, and when the pulling member 4 is released, it assists (does not hinder) the extension process of the roller brush assembly 2. For example, during the extension process of the roller brush assembly 2, the pulling member 4 is extended by the driving of the driving member 3 to prevent the length of the pulling member 4 from limiting the extension of the roller brush assembly 2.

[0105] In addition, the second control assembly further includes a second transmission member 7, which is meshed with the output shaft of the driving member 3, and the second transmission member 7 is also meshed with the first transmission member 5. The transmission of driving force is achieved by structural meshing, which is simple, efficient, easy to set up, and conducive to saving setting space.

[0106] like Figure 7 As shown, specifically, the driving member 3 is arranged in the installation box 12, the driving member 3 adopts a motor, the driving member 3 has an output shaft, and the output shaft has motor teeth 301 (or called a worm), and the axial direction of the output shaft of the driving member 3 is parallel to the axial direction of the control member 8.

[0107] The second transmission member 7 is arranged in the installation box 12, and the axial direction of the second transmission member 7 is perpendicular to the axial direction of the driving member 3 and is not in the same plane. The second transmission member 7 adopts a two-stage gear. The second transmission member 7 includes a second transmission member shaft 701, a first meshing portion 702 and a second meshing portion 703. The second transmission member shaft 701 is connected to the inner wall of the installation box 12, and the first meshing portion 702 and the second meshing portion 703 are arranged in sequence along the axial direction of the second transmission member shaft 701. The first meshing portion 702 meshes with the motor teeth 301, and the second meshing portion 703 meshes with the first transmission member 5.

[0108] The first transmission member 5 is disposed in the installation box 12. The first transmission member 5 adopts a wire-receiving tooth. The first transmission member 5 includes a first transmission member shaft 501. The first transmission member shaft 501 is connected to the inner wall of the installation box 12. The meshing portion of the first transmission member 5 meshes with the second meshing portion 703. The pulling member 4 is wound around the first transmission member 5. When the first transmission member 5 rotates forward, the pulling member 4 is released and the extended portion thereof is extended. When the first transmission member 5 rotates reversely, the pulling member 4 is wound and the extended portion thereof is shortened, thereby driving the roller brush assembly 2 to retract relative to the housing 1.

[0109] The pulling member 4 is made of steel wire, which is wound around the first transmission member 5. One end of the pulling member 4 is connected to the roller brush assembly 2. Specifically, the end of the pulling member 4 close to the roller brush assembly 2 can be embedded in and fixed in the second groove 2042 to achieve the connection between the pulling member 4 and the roller brush assembly 2.

[0110] Furthermore, the second control component also includes a protective cover 6 , which is disposed on the housing 1 , and the pulling member 4 is inserted into the protective cover 6 .

[0111] The protective cover 6 has a space suitable for the pulling member 4 to pass through and move. The protective cover 6 can protect the pulling member 4 and guide the extension direction of the pulling member 4. In this embodiment, the protective cover 6 is made of rubber material, and part of the structure of the protective cover 6 is bent toward the roller brush assembly 2 to facilitate the connection between the pulling member 4 and the roller brush assembly 2. In this embodiment, the bending angle is 180°, and one end of the pulling member 4 passing through the protective cover 6 is connected to the second groove 2042. In this embodiment, except for the bent portion of the protective cover 6, the rest of the protective cover 6 is parallel to the extended portion of the control member 8, and is arranged in parallel with the extension direction and retraction direction of the roller brush assembly 2. The above-mentioned structural setting method can achieve a compact structural design, reduce space occupancy, and at the same time make the control member 8 and the pulling member 4 act on the roller brush assembly 2 efficiently and stably.

[0112] Furthermore, the roller brush structure further includes a buffer member 9 , which is disposed at a position where the roller brush assembly 2 contacts the housing 1 when the roller brush assembly 2 extends and / or retracts relative to the housing 1 .

[0113] When the roller brush assembly 2 is about to reach the preset extended position and the preset retracted position, in order to reduce the collision between the housing 1 and the roller brush housing 201, a buffer 9 is provided at the position where the housing 1 contacts the roller brush housing 201. The buffer 9 can be made of a material with elastic buffering function such as a rubber pad, and the buffer 9 can decelerate the roller brush assembly 2 in place, thereby preventing a violent collision between the housing 1 and the roller brush housing 201, and reducing structural noise.

[0114] In other embodiments, according to different design requirements, the buffer member 9 may be provided only at the position where the roller brush assembly 2 contacts the shell 1 when the roller brush assembly 2 extends relative to the shell 1, or the buffer member 9 may be provided only at the position where the roller brush assembly 2 contacts the shell 1 when the roller brush assembly 2 is retracted relative to the shell 1, so as to save manufacturing costs.

[0115] A guide mechanism is also provided on the shell 1 and the roller brush assembly 2. The extension direction of the guide mechanism is consistent with the extension direction and the retraction direction. Driven by the movement control mechanism, the roller brush assembly 2 can extend out of the shell 1 or retract into the shell 1 along the guide mechanism to make the reciprocating movement process of the roller brush assembly 2 more stable and reliable.

[0116] This embodiment also provides a control system for controlling the above-mentioned roller brush structure, and the control system includes: a first position detection member 10, a second position detection member 11 and a control element. The first position detection member 10 is disposed on the housing 1 of the roller brush structure, and the first position detection member 10 is used to detect whether the roller brush assembly 2 of the roller brush structure is extended to a preset extended position relative to the housing 1. The second position detection member 11 is disposed on the housing 1, and the second position detection member 11 is used to detect whether the roller brush assembly 2 is retracted to a preset retracted position relative to the housing 1. The signal input end of the control element is electrically connected to the signal output end of the first position detection member 10 and the signal output end of the second position detection member 11, and the signal output end of the control element is electrically connected to the signal input end of the driving member 3 of the second control component in the roller brush assembly.

[0117] The first position detection member 10 and the second position detection member 11 can both use optical coupling sensors. When the detection light beam of the first position detection member 10 is blocked by the roller brush assembly 2 during the process of the roller brush assembly 2 extending out of the housing 1, it indicates that the roller brush assembly 2 has reached the preset extended position. When the detection light beam of the second position detection member 11 is blocked by the roller brush assembly 2 during the process of the roller brush assembly 2 retracting into the housing 1, it indicates that the roller brush assembly 2 has reached the preset retracted position. This optical coupling sensor has high detection accuracy, is not easy to damage, and has a long service life. When the control element detects the signal that the roller brush assembly 2 has reached the preset extended position or the roller brush assembly 2 has reached the preset retracted position, the control element will control the drive member 3 to stop working, and the pulling member 4 will no longer extend or shorten.

[0118] Through the above control system, the control process of the cleaning equipment can be made more intelligent, so that users can have stronger control over the cleaning equipment and a better user experience.

[0119] This embodiment also provides a cleaning device, including the above-mentioned roller brush structure, or including the above-mentioned control system. The roller brush assembly 2 of this cleaning device can extend or retract relative to the shell 1. When cleaning corner areas such as the wall, the first control component drives the roller brush assembly 2 to extend relative to the shell 1, so that the roller brush assembly 2 is not affected by the position of the shell 1 and can be closer to the corner area, achieving "edge cleaning" to effectively clean the corner area, significantly reducing the cleaning blind area, and greatly improving the cleaning effect. When the corner area does not need to be cleaned (that is, when the roller brush assembly needs to be reset), the second control component drives the roller brush assembly 2 to retract relative to the shell. By adjusting the position of the roller brush assembly by the first control component and the second control component, the controllability of the roller brush assembly is enhanced, and the user can actively adjust the position of the roller brush assembly 2 according to the current use needs, which not only has a better cleaning effect, but also a better user experience.

[0120] Furthermore, the cleaning device may be one of a sweeper, a mop, and a scrubber. In the present embodiment, the cleaning device is specifically a sweeper.

[0121] This embodiment also provides a control method, which is applied to the control system of the above cleaning device. For example, the initial state of the roller brush assembly 2 is retracted relative to the housing 1. The control method includes:

[0122] Step S01, when cleaning the corner area, the force exerted by the second control component on the roller brush component 2 in the roller brush structure is made smaller than the force exerted by the first control component on the roller brush component 2, and the roller brush component 2 is extended relative to the housing 1 under the drive of the first control component.

[0123] Specifically, when cleaning the corner areas, the second control component applies a force to the roller brush assembly 2 and overcomes the force of the first control component on the roller brush assembly 2, so that the force of the second control component on the roller brush assembly 2 is smaller than the force of the first control component on the roller brush assembly 2. At this time, the first control component can drive the roller brush assembly 2 to extend relative to the shell 1. After the roller brush assembly 2 extends out of the shell 1, it can be closer to the corner areas such as the wall for effective cleaning.

[0124] Step S02, when the roller brush assembly 2 needs to be reset, the force exerted by the second control assembly on the roller brush assembly 2 is made greater than the force exerted by the first control assembly on the roller brush assembly 2, and the roller brush assembly 2 is retracted relative to the housing 1 under the drive of the second control assembly.

[0125] Specifically, when the roller brush assembly 2 needs to be reset, that is, when the roller brush assembly 2 needs to return to the preset retracted position, the force of the second control component on the roller brush assembly 2 can be increased until the force of the second control component on the roller brush assembly 2 is greater than the force of the first control component on the roller brush assembly 2, or the force of the first control component on the roller brush assembly 2 can be reduced until the force of the second control component on the roller brush assembly 2 is greater than the force of the first control component on the roller brush assembly 2. At this time, the second control component can drive the roller brush assembly 2 to retract relative to the shell 1, thereby realizing the resetting of the roller brush assembly 2.

[0126] Furthermore, when cleaning the corner area, the force exerted by the second control component on the roller brush component 2 in the roller brush structure is smaller than the force exerted by the first control component on the roller brush component 2. In the step of extending the roller brush component 2 relative to the housing 1 under the drive of the first control component, the following steps are included: starting the driving member 3, releasing the pulling member 4, and the roller brush component 2 is extended relative to the housing 1 under the drive of the control member 8 until the first position detection member 10 detects that the roller brush component 2 has reached the preset extended position, and the driving member 3 stops working. The first position detection member 10 can accurately detect whether the roller brush component 2 has been extended to the desired position, thereby improving the controllability of the roller brush structure.

[0127] Furthermore, when the roller brush assembly 2 is in the preset extended position and encounters an obstacle, and the thrust of the obstacle on the roller brush assembly 2 in the retracting direction is greater than the force of the second control assembly on the roller brush assembly 2, the roller brush assembly 2 retracts relative to the housing 1 to achieve obstacle avoidance. When the roller brush assembly 2 extends out of the housing 1, if it encounters an obstacle, the roller brush assembly 2 abuts against the obstacle, and the force of the obstacle on the roller brush assembly 2 is greater than the force of the second control assembly on the roller brush assembly 2, the roller brush assembly 2 can retract relative to the housing, thereby achieving an automatic obstacle avoidance process.

[0128] Furthermore, when the roller brush assembly 2 needs to be reset, the force exerted by the second control assembly on the roller brush assembly 2 is made greater than the force exerted by the first control assembly on the roller brush assembly 2. In the step of the roller brush assembly 2 being retracted relative to the housing 1 under the drive of the second control assembly, the following steps are included: starting the driving member 3, winding the pulling member 4 until the force exerted by the pulling member 4 on the roller brush assembly 2 is greater than the force exerted by the control member 8 on the roller brush assembly 2, and the roller brush assembly 2 is retracted relative to the housing 1 under the drive of the pulling member 4, until the second position detection member 11 detects that the roller brush assembly 2 has reached the preset retracted position, and the driving member 3 stops working. The retracted position detection of the roller brush assembly 2 can be accurately performed by the second position detection member 11, thereby improving the controllability of the roller brush structure.

[0129] The following is combined with Fig. 9 and 10 , the control method of this embodiment (i.e. the working process of the cleaning device) is described in detail:

[0130] When the cleaning equipment starts working, if you need to clean the corners, such as Fig. 9 As shown, the user controls the driving member 3 to start, and the motor gear 301 drives the second transmission member 7 to rotate, thereby driving the first transmission member 5 to rotate ( Fig. 9 The pulling member 4 is released and extended. At this time, the pulling member 4 is in a free state. Since the control member 8 continuously applies a pulling force to the roller brush assembly 2, the roller brush assembly 2 will extend out of the housing 1 ( Fig. 9 The roller brush assembly 2 moves to the left in the middle), until the first position detection member 10 detects that the roller brush assembly 2 reaches the preset extended position, the driving member 3 stops working, and the buffer member 9 buffers the roller brush assembly 2. The roller brush housing 201 abuts against the housing 1 through the buffer member 9, so that the roller brush assembly 2 stops moving. At this time, the cleaning device can clean the corner area;

[0131] When the cleaning device encounters an obstacle, if the obstacle applies an external force to the roller brush assembly 2, the magnitude of the external force is usually in the range of (0, 10N). When the external force can overcome (is greater than) the pulling force of the control member 8 on the roller brush assembly 2 (the external force is greater than the coil spring force), the roller brush assembly 2 is retracted into the housing 1 under the push of the external force (the roller brush assembly 2 may not be retracted into place at this time). When the cleaning device leaves the obstacle, the roller brush assembly 2 returns to the preset extended position again under the pulling force of the control member 8 and continues cleaning.

[0132] When the roller brush assembly 2 needs to be reset, that is, when the corner area does not need to be cleaned and the roller brush assembly 2 needs to be stored, Fig.10 As shown, the driving member 3 is controlled to reverse, the motor gear 301 drives the second transmission member 7 to reverse, and then drives the first transmission member 5 to reverse ( Fig.10 The pulling member 4 is pulled back and shortened, and the right side of the roller brush assembly 2 is subjected to tension until the tension of the control member 8 is overcome, so that the roller brush assembly 2 moves in the retracting direction ( Fig.10 The roller brush assembly 2 moves to the right in the middle), until the second position detection member 11 detects that the roller brush assembly 2 reaches the preset retracted position, the driving member 3 stops working, and the buffer member 9 buffers the roller brush assembly 2. The roller brush shell 201 abuts against the shell 1 through the buffer member 9, the roller brush assembly 2 stops moving, and the roller brush assembly 2 is reset.

[0133] like Fig.12 As shown, in other embodiments, the control member 8 is an elastic member, and when the roller brush assembly 2 is retracted relative to the housing 1, the control member 8 is in a stretched state.

[0134] Specifically, the control member 8 adopts a tension spring, and the two ends of the control member 8 are respectively connected to the housing 1 and the roller brush assembly 2 through the tension spring fixing buckle 2043. When the roller brush assembly 2 is retracted relative to the housing 1, the control member 8 is in a stretched state, and the control member 8 can apply a pulling force to the roller brush assembly 2 to move in the extending direction. When the pulling member 4 is released and the right side of the roller brush assembly 2 ( Fig.12 When the roller brush assembly 2 is not subjected to force, under the pulling force of the control member 8, the roller brush assembly 2 extends relative to the housing 1 until it reaches the preset extended position. The pulling force of the tension spring on the roller brush assembly 2 is variable. When the roller brush assembly 2 moves toward the preset retracted position, the pulling force of the tension spring on the roller brush assembly 2 gradually increases, and when the roller brush assembly 2 moves toward the preset extended position, the pulling force of the tension spring on the roller brush assembly 2 gradually decreases, but it is necessary to keep the roller brush assembly 2 at the preset extended position.

[0135] like Fig.13As shown, in other embodiments, the control member 8 applies a thrust along the extension direction to the roller brush assembly 2, and one end of the control member 8 abuts against the roller brush assembly 2, and the other end abuts against the housing 1. Further, the control member 8 is an elastic member, and when the roller brush assembly 2 is retracted relative to the housing 1, the control member 8 is in a compressed state.

[0136] Specifically, the control member 8 adopts a compression spring, and a mounting hole for installing the compression spring is formed on the housing 1. The two ends of the control member 8 abut against the roller brush assembly 2 and the housing 1 respectively. When the roller brush assembly 2 is retracted relative to the housing 1, the control member 8 is in a compressed state, and the control member 8 can apply a thrust to the roller brush assembly 2 to move in the extending direction. When the pulling member 4 is released and the right side of the roller brush assembly 2 ( Fig.12 When the roller brush assembly 2 is not subjected to force, under the thrust of the control member 8, the roller brush assembly 2 extends relative to the housing 1 until it reaches the preset extended position. The thrust value of the compression spring on the roller brush assembly 2 is variable. When the roller brush assembly 2 moves toward the preset retracted position, the thrust value of the compression spring on the roller brush assembly 2 gradually increases, and when the roller brush assembly 2 moves toward the preset extended position, the thrust value of the tension spring on the roller brush assembly 2 gradually decreases, but it is necessary to keep the roller brush assembly 2 at the preset extended position.

[0137] In addition, in other embodiments, the control member 8 may also be a cylinder, etc., which applies a thrust along the extension direction to the roller brush assembly 2 through the telescopic rod of the cylinder. Of course, the size of the cylinder should meet the volume requirement of the cleaning equipment, and can also drive the roller brush assembly 2 to extend relative to the shell 1.

[0138] Although the embodiments of the present invention are 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 roller brush structure, characterized in that: include: Housing (1); A roller brush assembly (2) is movably arranged on the housing (1); A movement control mechanism is arranged on the shell (1), and comprises a first control component and a second control component for applying a force to the roller brush assembly (2); when the force applied by the second control component to the roller brush assembly (2) is less than the force applied by the first control component to the roller brush assembly (2), the first control component drives the roller brush assembly (2) to extend relative to the shell (1); when the force applied by the second control component to the roller brush assembly (2) is greater than the force applied by the first control component to the roller brush assembly (2), the second control component drives the roller brush assembly (2) to retract relative to the shell (1).

2. The roller brush structure according to claim 1, characterized in that: The direction in which the first control component applies force to the roller brush assembly (2) is parallel to the extension direction of the roller brush assembly (2), and / or the direction in which the second control component applies force to the roller brush assembly (2) is parallel to the retraction direction of the roller brush assembly (2).

3. The roller brush structure according to claim 1, characterized in that: The roller brush assembly (2) is movably arranged on a side of the shell (1) facing the surface to be cleaned; the first control assembly drives the roller brush assembly (2) to extend out of the projection range of the shell (1) on the surface to be cleaned; and the second control assembly drives the roller brush assembly (2) to retract into the projection range of the shell (1) on the surface to be cleaned.

4. The roller brush structure according to any one of claims 1 to 3, characterized in that: The second control component comprises a driving member (3) and a pulling member (4), wherein the driving member (3) is arranged on the housing (1), one end of the pulling member (4) is driven by the driving member (3), and the other end of the pulling member (4) is connected to the roller brush assembly (2).

5. The roller brush structure according to claim 4, characterized in that: At least the portion of the pulling member (4) connected to the roller brush assembly (2) is arranged parallel to the retraction direction of the roller brush assembly (2).

6. The roller brush structure according to claim 4, characterized in that: The second control component also includes a first transmission member (5), a portion of the pulling member (4) away from the roller brush assembly (2) is wound around the first transmission member (5), and the driving member (3) drives the first transmission member (5) to rotate so as to release or wind up the pulling member (4).

7. The roller brush structure according to claim 6, characterized in that: The second control component further comprises a protective sleeve (6), wherein the protective sleeve (6) is arranged on the housing (1), and the pulling member (4) is inserted into the protective sleeve (6).

8. The roller brush structure according to claim 6, characterized in that: The second control component further comprises a second transmission member (7), wherein the second transmission member (7) is meshed with the output shaft of the driving member (3), and the second transmission member (7) is also meshed with the first transmission member (5).

9. The roller brush structure according to claim 4, characterized in that: The first control component comprises a control member (8), the control member (8) being arranged on the housing (1), and the control member (8) applying a pulling force or a pushing force to the roller brush component (2) along the extension direction of the roller brush component (2).

10. The roller brush structure according to claim 9, characterized in that: The roller brush assembly (2) comprises a connecting member (204), one end of the connecting member (204) is connected to the pulling member (4), and the other end is connected to the control member (8); the forces exerted by the first control member and the second control member on the roller brush assembly (2) act on the connecting member (204); when the force exerted by the second control member on the connecting member (204) is smaller than the force exerted by the first control member on the connecting member (204), the first control member drives the roller brush assembly (2) to extend relative to the housing (1) via the connecting member (204); when the force exerted by the second control member on the connecting member (204) is larger than the force exerted by the first control member on the connecting member (204), the second control member drives the roller brush assembly (2) to retract relative to the housing (1) via the connecting member (204).

11. The roller brush structure according to claim 10, characterized in that: The control member (8) continuously applies a pulling force along the extending direction to the roller brush assembly (2).

12. The roller brush structure according to claim 10, characterized in that: The control member (8) is an elastic member, and when the roller brush assembly is retracted relative to the housing (1), the control member (8) is in a stretched state.

13. The roller brush structure according to claim 9, characterized in that: The control member (8) applies a thrust along the extension direction to the roller brush assembly (2); one end of the control member (8) abuts against the roller brush assembly (2), and the other end abuts against the shell (1).

14. The roller brush structure according to claim 13, characterized in that: The control member (8) is an elastic member, and when the roller brush assembly is retracted relative to the housing (1), the control member (8) is in a compressed state.

15. The roller brush structure according to any one of claims 1 to 3, characterized in that: It also comprises a buffer member (9), which is arranged at a position where the roller brush assembly (2) contacts the shell (1) when the roller brush assembly (2) extends and / or retracts relative to the shell (1).

16. A control system, characterized in that: Used to control the roller brush structure according to any one of claims 1 to 15, the control system comprises: A first position detection member (10) is arranged on the housing (1) of the roller brush structure, and the first position detection member (10) is used to detect whether the roller brush assembly (2) of the roller brush structure is extended to a preset extended position relative to the housing (1); A second position detection member (11) is arranged on the housing (1), and the second position detection member (11) is used to detect whether the roller brush assembly (2) is retracted to a preset retracted position relative to the housing (1); A control element, wherein a signal input end of the control element is electrically connected to a signal output end of the first position detection element (10) and a signal output end of the second position detection element (11), and a signal output end of the control element is electrically connected to a signal input end of a driving element (3) of a second control element in the roller brush assembly.

17. A cleaning device, characterized in that: It comprises the roller brush structure as described in any one of claims 1 to 15, or comprises the control system as described in claim 16.

18. The cleaning device according to claim 17, characterized in that The cleaning device is one of a sweeper, a mop and a scrubber.

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